CN101451292B - Loop belt feeding device - Google Patents
Loop belt feeding device Download PDFInfo
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- CN101451292B CN101451292B CN 200810178949 CN200810178949A CN101451292B CN 101451292 B CN101451292 B CN 101451292B CN 200810178949 CN200810178949 CN 200810178949 CN 200810178949 A CN200810178949 A CN 200810178949A CN 101451292 B CN101451292 B CN 101451292B
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Abstract
The present invention provides a belt loop supply device, which may prevent sewing badness by estimating transportation badness or use up of the belt loop with simple structure. The belt loop supply device comprises a transportation unit for transporting cloth belt along preset path with a step motor as drive source; a pretightening unit applying load in transportation of the cloth belt with the transportation unit; a rotary encoding device for detecting real rotation of the step motor; a guiding out unit may be near/away form the transportation unit, the guiding out unit being used for clamping front end of the cloth belt by approaching and guiding the belt to end of the preset path in state of clamping its front end; a cutting off unit for cutting the cloth belt at preset length; a belt loop supply unit holding the cloth belt guided out by the guiding out unit and supplying the belt cut off with the cutting off unit to the body of the sewing machine; and a control section for controlling the drive of the transportation unit.
Description
Technical field
The present invention relates to a kind of loop belt feeding device, it is being for making thing and making the Sewing machines of belt loop, for the belt loop of giving specific length and cutting off.
Background technology
Current, develop the waist of making thing at jeans, Western-style trousers, skirt etc. and made Sewing machines be used to a plurality of belt loops that pass waistband.This Sewing machines has loop belt feeding device, and its assigned position on the sewing machine base in making operation is supplied with belt loop (for example, with reference to patent documentation 1).
Loop belt feeding device has with lower unit etc., that is: supply unit, the belt loop material of its conveying band; Draw the unit, it draws the belt loop material; Cutting unit, it cuts off the belt loop material; And the belt loop feed unit, it is delivered to Sewing machines with belt loop and supplies with, this loop belt feeding device belt loop make operation the time repeatedly carry out following a series of actions.
At first, if transport banded belt loop material by supply unit, then make for example to be positioned at the locational anchor clamps of drawing the unit of subtend and to move closer to supply unit, catch the front end of the belt loop material that is transported by supply unit and retreat.Thus, make the belt loop material shelf of specific length be located at supply unit and draw between the unit.Then, the belt loop material that this quilt is set up is cut off by cutting unit near the delivery port of supply unit, the a pair of anchor clamps of belt loop feed unit approach to cut belt loop material (belt loop), turn back to the inside in the clamping two ends, are supplied on the sewing machine base of sewing machine main body.
The supply unit 7 of above-mentioned existing loop belt feeding device shown in Fig. 8.Belt loop material T (double dot dash line) is carried by the supply unit 7 with conveying roller 7a in Fig. 8, is delivered to cutter blades 4a, 4b side via the path of regulation.The test rod 1 of rotary oscillation centered by midway arranging of aforesaid paths can the strong point 2, the surperficial butt of the bottom of this test rod 1 and belt loop material T.If corresponding swing of thickness of test rod 1 and the belt loop material T that passes through, then this anglec of rotation is passed to analogue instrument, learns the thickness of belt loop material.Seam portion is because thicker than other parts, so by the relevant data of thickness pre-stored and the belt loop material in control circuit etc., can determine seam portion.
In addition, the belt loop material that uses in above-mentioned this loop belt feeding device forms long band shape by cloth is sewed up.Because seam portion can't be used for making as belt loop, needs to remove, and therefore the detecting unit that detects seam portion is set.
Patent documentation 1: 2001-No. 46771 communiques of JP
Summary of the invention
Here, because the belt loop material forms long band shape, so mostly such as putting into chest etc. with reeling condition or folded state, be positioned on the bottom surface of Sewing machines bottom and use.Therefore, normally leading section is inserted loop belt feeding device and successively conveying, for example in the situation that winding or hook occur in the Sewing machines bottom, even this loop belt feeding device is carried action, also can can't carry owing to the stepping motor imbalance of using as the drive source of supply unit etc. the belt loop of specific length (ormal weight), produce carry bad.Its result, appearance produces the problem of the poor stitching quality of belt loop.
In above-mentioned patent documentation 1 disclosed loop belt feeding device, the detecting unit of the seam portion of detection belt loop material is for detection of the thickness of belt loop material, in addition, because the control module that the driving of supply unit is controlled is open loop control, therefore can't detect the actual fed amount of belt loop material or the rotation amount of the stepping motor actual act used as the drive source of supply unit.Therefore, can't test example such as the empty feeding of belt loop or aforementioned hook or by the conveying that causes such as unusual of the motor such as motor locking bad and belt loop use up etc., the problem of belt loop poor stitching quality appears producing.
The object of the present invention is to provide a kind of loop belt feeding device, it is bad or use up etc. by conveying of judging belt loop, prevents poor stitching quality.
In order to solve above-mentioned problem, the invention that technical scheme 1 of the present invention is put down in writing is a kind of loop belt feeding device, and it is being to making thing and make the Sewing machines of belt loop, for the belt loop of giving specific length and cutting off,
It is characterized in that having:
Supply unit, it as drive source, carries the belt loop material that the cloth stitching is formed with stepping motor along prescribed path;
Detecting unit, it detects the actual rotation amount of aforementioned stepping motor; And
Control module, its driving to aforementioned supply unit is controlled,
Aforementioned control module has:
Memory cell, its pre-stored deviation data, this deviation data has for the instruction rotation amount of exporting to aforementioned stepping motor and by the deviation between the actual rotation amount of the detected aforementioned stepping motor of aforementioned detecting unit, a plurality of deviation regions that utilize a plurality of threshold values to mark off;
Judging unit, it is by judging to the instruction rotation amount of aforementioned stepping motor output and by the deviation between the actual rotation amount of the detected aforementioned stepping motor of aforementioned detecting unit, be arranged in which aforementioned deviation region of the deviation data that is stored in aforementioned memory cell, thereby in the following situation any one is judged at least, that is the bad or aforementioned belt loop material of conveying that, is caused by seam or the hook of aforementioned belt loop material is used up; And
The pipage control unit, it is carried out pipage control and processes based on the judged result of aforementioned judging unit, processes the driving that stops aforementioned stepping motor by this pipage control, carries out simultaneously the report corresponding with the judged result of aforementioned judging unit.
The invention that technical scheme 2 is put down in writing is characterised in that, in technical scheme 1 described invention, at least a portion on the border of aforementioned each deviation region is set as each other the interval across regulation.
The invention that technical scheme 3 is put down in writing is characterised in that in technical scheme 1 or 2 described inventions, to have preload unit, and it is imposed load in the belt loop material that is undertaken by aforementioned supply unit is carried.
The effect of invention
According to the invention that technical scheme 1 is put down in writing, can utilize detecting unit to detect the actual rotation amount of the stepping motor that arranges as the drive source of supply unit.In addition, by judging unit based on this testing result, judgement is to the instruction rotation amount of stepping motor output and by the deviation between the actual rotation amount of the detected stepping motor of detecting unit, be arranged in which deviation region of the deviation data that is stored in memory cell, can in the following situation any one is judged at least, that is the conveying that, is caused by seam or the hook of belt loop material is bad or use up by the aforementioned belt loop material that causes such as using up.And then, can pass through the pipage control unit, carry out the pipage control that the driving that makes stepping motor stops based on the judged result of judging unit and process.Thus, can prevent the poor stitching quality of belt loop, its result can realize the raising of the reliability of loop belt feeding device.In addition, this moment, the pipage control unit was by for example carrying out the report corresponding with the judged result of judging unit via display unit, the operator can easily learn and cause the driving of stepping motor to be stopped, and the reason that the conveying of belt loop material is stopped can be tackled rapidly.
The invention of putting down in writing according to technical scheme 2, except the identical effect of the invention that can obtain putting down in writing with technical scheme 1, especially, be set as each other interval across regulation by at least a portion with the border of each deviation region, thereby the judgement white space of judging unit can be set, can avoid for the scope property the concluded control that can't differentiate before and after the threshold value.That is, for example in certain scope before and after the threshold value, existence can't be broken and be judged qualitatively the situation that belongs to which deviation region.For above-mentioned scope, for example, if judge based on the threshold value that does not have spaced single-point, which side decision belongs to the instruction rotation amount of stepping motor output and by the deviation between the actual rotation amount of the detected stepping motor of detecting unit, then might appear to have carried out when not needing to stop to stop, not stopping when needs stop or can't correctly differentiating the situation that causes the reason that stops.Therefore, by the judgement white space of judging unit is set, judges qualitatively and be in which deviation region in the situation that can't break, can reduce the frequency that the pipage control unit stops the stepping motor as the drive source of supply unit.Thus, on one side can prevent the poor stitching quality of belt loop, Yi Bian suppress to carry the stop frequency of action, realize the raising of productivity ratio.
The invention of putting down in writing according to technical scheme 3, except the identical effect of the invention that can obtain putting down in writing with technical scheme 1 or 2, especially, by having preload unit, can make to the instruction rotation amount of stepping motor output and by the deviation between the actual rotation amount of the detected stepping motor of detecting unit to increase.Therefore, can be further easily and reliably in the following situation any one is judged at least, that is, the conveying that is caused by seam or the hook of belt loop material is bad or by the having or not of the belt loop material that causes such as using up.
Description of drawings
Fig. 1 is that expression has the top view as the belt loop sewing machine for sewing of the loop belt feeding device of an example of the present invention.
Fig. 2 is the side view of the schematic configuration of expression loop belt feeding device shown in Figure 1.
Fig. 3 is that the expression strap is erected at supply unit and draws the skeleton diagram of the state between the unit.
Fig. 4 is the control circuit of action control is carried out in expression to the loop belt feeding device of Fig. 1 block diagram.
Fig. 5 is the concept map for the concept of the deviation of explanation present embodiment.
Fig. 6 is the flow chart of the elemental motion of the loop belt feeding device in the expression present embodiment.
Fig. 7 is the flow chart that action is processed in the interruption of the loop belt feeding device in the expression present embodiment.
Fig. 8 is the side view of the supply unit of the existing loop belt feeding device of expression.
The specific embodiment
Below, be used for implementing optimal way of the present invention with reference to description of drawings.
Fig. 1 is the top view that expression has the belt loop sewing machine for sewing 10 of loop belt feeding device involved in the present invention.Belt loop sewing machine for sewing 10 shown in Figure 1 is configured in to be made on the workbench 14, by consisting of as the sewing machine main body 12 of crosspointer circulation seam sewing machine and the loop belt feeding device 13 that is configured in these sewing machine main body 12 right sides etc.
(overall structure of loop belt feeding device)
Fig. 2 is the side view of the schematic configuration of expression loop belt feeding device 13 shown in Figure 1, Fig. 3 is that expression strap T is erected at the supply unit 37 that is arranged on the loop belt feeding device 13 and the skeleton diagram of drawing the state between the unit 38, and Fig. 4 is the control circuit 50 of action control is carried out in expression to loop belt feeding device 13 block diagram.
Shown in Fig. 1～4, loop belt feeding device 13 to supply with at the sewing machine main body 12 of making thing and make belt loop with the belt loop material (below, be called " strap T ") cut off the belt loop form with specific length, this belt loop material forms band shape by cloth is sewed up, this loop belt feeding device 13 has following part etc., that is: supply unit 37, and it as drive source, carries strap T along prescribed path with stepping motor 44; Preload unit 60, it is imposed load in the conveying of the strap T that is undertaken by supply unit 37; As the rotary encoder 65 of detecting unit, it detects the actual rotation amount of stepping motor 44; Draw unit 38, it can approach/leave with supply unit 37, near the time clamping strap T front end, under the state of this front end of clamping, leave, thereby strap T led to the end of prescribed path; Cutting unit 34, it is arranged near the end of prescribed path, and strap T is cut off with specific length; Belt loop feed unit 35, it is arranged near the end of prescribed path, grips by drawing the strap T that draws unit 38, and the two ends bending of the strap T that will be cut off by cutting unit 34 is simultaneously supplied with the belt loop that forms to sewing machine main body 12; As the control part 51 of control module, its driving to supply unit 37 grades is controlled; And guidance panel 56, it is used for carrying out various setting operations or demonstration.
(supply unit)
As shown in Figure 2, supply unit 37 has conveying roller 40, stepping motor 44 and belt loop transport platform 41 etc.
Conveying roller 40 is the gears that are formed with the feeding tooth in whole periphery, and it is installed on the end of rotating shaft 42, and this rotating shaft 42 approximate horizontal ground configuration is with the throughput direction quadrature of strap T.Stepping motor 44 is arranged on the lower right of the conveying roller 40 among Fig. 2, and setting-in drives with synchronous pulley 45 on its output shaft 44a.Setting-in is with employing synchronous pulley 43 on the other end of aforementioned rotating shaft 42, sets up Timing Belt 46 with employing synchronous pulley 43 and aforementioned driving between with synchronous pulley 45 at this, makes the rotation of stepping motor 44 can be passed to conveying roller 40.Described stepping motor 44 is driven by the timing of control part 51 described later (with reference to Fig. 4) with regulation.
Belt loop transport platform 41 in an inclined direction has smooth conveyor surface (not shown).Below conveying roller 40, form the smooth horizontal plane (not shown) continuous with this conveyor surface, consisted of the path (prescribed path) of strap T process by these conveyor surfaces and horizontal plane.And, from the insert port insertion of arrow A and the strap T that passes through from aforementioned conveyor surface, be formed on the state that the below of conveying roller 40 contacts with conveying roller 40, by conveying roller 40 rotations and pass through from aforementioned horizontal plane, be transferred the specific length amount from the delivery port of arrow B.
(preload unit)
Preload unit 60 has seam and detects auxiliary rod 61, detects auxiliary rod 61 applies load from regulation to strap T via this seam.
Specifically, it is for example shown in Figure 2 that seam detects auxiliary rod 61, has the leading section 61b of U word shape, forms the shape that bends 2 positions, is that kink 61a place is installed on the gripper shoe 62 at the bending part of a side.In addition, it can kink 61a be that fulcrum rotates that seam detects auxiliary rod 61, simultaneously because the effect of not shown spring members and be rotated counterclockwise the direction pretension in Fig. 2.Like this, when strap T detected the leading section 61b of auxiliary rod 61 through seam, strap T was pressed against on the conveyor surface of belt loop transport platform 41 all the time, in the conveying of this strap T imposed load, be transporting resistance.
In addition, detect auxiliary rod 61 for seam, because substantially not rotating through out-of-date without seam portion (normal part) of strap T, so the load that is applied on the strap T is less, but, if because seam portion (stage portion) process thicker than normal part, then leading section 61b is lifted, so apply larger load at strap T.That is, when the thicker part of the thickness of the such strap T of seam portion detects the leading section 61b of auxiliary rod 61 through seam, compare when detecting auxiliary rod 61 with the normal part of strap T through seam, transporting resistance increases.
(detecting unit)
And, the rotating photo of rotary encoder 65 and stepping motor 44 to and will export control part 51 to output signal corresponding to the actual rotation amount of this stepping motor 44.
As mentioned above, when strap T detects the leading section 61b of auxiliary rod 61 through seam, in the conveying of strap T, apply transporting resistance here.Therefore, in each moment, from control part 51 described later to stepping motor the number of drive pulses of 44 outputs be the instruction rotation amount, with the actual amounts (actual rotation amount) of rotating of stepping motor 44 between produce deviation, wherein, this stepping motor 44 is as the rotary driving source of the conveying roller 40 of carrying strap T.So-called to the instruction rotation amount of stepping motor 44 outputs and the deviation between the actual rotation amount, for example refer to by from by control part 51 described later to the number of drive pulses (instruction rotation amount) of stepping motor 44 outputs, deduct by the actual rotation amount of rotary encoder 65 detected stepping motors 44, i.e. output umber of pulses of 51 outputs from rotary encoder 65 to control part, thus the departure of determining.
In addition, when carrying strap T, the load change that is applied to stepping motor 44 by the strap T that is detected auxiliary rod 61 pretensions by seam, thereby the deviation between the output umber of pulse (the actual rotation amount of stepping motor 44) of the number of drive pulses (instruction rotation amount) of this stepping motor 44 and rotary encoder 65 is changed.Specifically, when seam portion detects the leading section 61b of auxiliary rod 61 through seam, between the output umber of pulse (the actual rotation amount of stepping motor 44) of the number of drive pulses (instruction rotation amount) of stepping motor 44 and rotary encoder 65, produce with normal part by the time compare larger deviation.And, exporting the variation of the deviation between this number of drive pulses and the output umber of pulse to control part 51, control part 51 changes the computing deviation based on this.
(drawing the unit)
Draw the strap T that carried to the B direction of Fig. 2 by aforementioned supply unit 37 38 pairs of unit and carry out clamping and draw, it has: clamping limb 101, and it is made of fixed arm 101a and moveable arm 101b; Drive rod 105, it is in leading section retaining clip gripping arm 101; And clamping limb motor 52, it makes drive rod 105 move back and forth (with reference to Fig. 4).
Front end at fixed arm 101a forms clamping bottom 103, and it is crooked slightly downwards, so that strap T easily takes to this fixed arm 101a, on the other hand, at the front end formation clamping upper 107 of moveable arm 101b, it bends towards vertical direction, has sharp-pointed end, with easy hook strap T.Take-off lever 110a by cylinder 110 moves back and forth moveable arm 101b is swung up and down, and makes thus clamping bottom 103 and clamping upper 107 can approach/leave.In addition, cylinder 110 is driven with electromagnetic valve 111 (with reference to Fig. 4) by the clamping limb of controlled 51 control.
Clamping limb 101 is fixed on the front end of the drive rod 105 of these installation portion 112 belows via installation portion 112.Rotate with motor 52 by the clamping limb that is consisted of by stepping motor, drive rod 105 is back and forth driven on the left and right directions of Fig. 2.This clamping limb 101 moves closer to supply unit 37 (state of Fig. 2) with the timing of regulation under the control of control part 51, the strap T that utilizes clamping upper 107 and 103 clampings of clamping bottom to transport at the clip position of Fig. 3.Then, keep this state and retreat going-back position (left of Fig. 2, the top of Fig. 3) to Fig. 3.By the action of this clamping limb 101, as shown in Figure 3, form strap T and be erected at supply unit 37 with specific length and draw state between the unit 38.
(cutting unit)
Fixed blade 73 be arranged on strap T transport path under and with movable blade 72 roughly on the relative position, utilize aforementioned movable blade 72 and fixed blade 73, to shown in aforementioned, be erected at supply unit 37 and draw strap T under the state between the unit 38, cut off in off-position shown in Figure 3.
(belt loop feed unit)
Belt loop feed unit 35 is shown in current known loop belt feeding device, its front end has anchor clamps 200a, the 200b of clamping strap T, utilize not shown motor mechanism or cam mechanism to drive these anchor clamps 200a, 200b, will supply with to sewing machine main body 12 with the strap T (belt loop) that specific length is cut off.
Specifically, as shown in Figure 3, anchor clamps 200a, 200b, approach from the rear of the strap T (belt loop) that is erected at supply unit 37 and draws between the unit 38 and cut off by cutting unit 34 and carry out clamping, keep this state to advance, supply with to the position that loads the regulation of making thing S on the sewing machine base 5 of sewing machine main body 12.After supply, retreat, and then advance with the next belt loop of clamping.In addition, anchor clamps 200a, the track when 200b retreats and compare when supplying with and be positioned at the below, with do not hinder supply unit 37, draw unit 38, the operation of cutting unit 34.
In belt loop feed unit 35, has the supply that drives aforementioned motor mechanism with motor 54 (with reference to Fig. 4) and the cylinder (not shown) that drives aforementioned cam mechanism, via these motor and cylinder, anchor clamps 200a, 200b are driven along the track of regulation.These supply with motor 54, and the supply of driving cylinder controlled rightly by control part 51 with electromagnetic valve 55 (with reference to Fig. 4).
(control circuit)
Below, according to Fig. 4, the structure of the control circuit 50 in the present embodiment is described.
As shown in Figure 4, control circuit 50 has control part 51, this control part 51 with make make action beginning make beginning switch 510, stepping motor 44, clamping limb with electromagnetic valve 111, clamping limb with motor 52, cut off with electromagnetic valve 53, supply and be connected with electromagnetic valve 55, rotary encoder 65 etc. with motor 54, supply.
Specifically, among the ROM 513 in the present embodiment, for example shown in Figure 4, pre-stored have a deviation data 513a (with reference to Fig. 5), this deviation data 513a have for by CPU 511 to the instruction rotation amount of stepping motor 44 output, and by the deviation D between the actual rotation amount of rotary encoder 65 detected stepping motors 44, utilize a plurality of threshold values (D shown in Figure 5 for example
0～D
4: D
0＜D
1＜D
2＜D
3＜D
4) a plurality of deviation region a of marking off
1～a
4, this ROM 513 works as memory cell of the present invention.
More particularly, deviation data 513a is for example shown in Figure 5, constitutes to have deviation region a
1(D＜=D
0), deviation region a
2(D
1＜=D＜=D
2), deviation region a
3(D
3＜=D＜=D
4), deviation region a
4(D
4＜=D) and white space b
1(D
0＜D＜D
1), white space b
2(D
2＜D＜D
3).
Deviation region a
1Be from control part 51 to stepping motor 44 output the instruction rotation amounts and actual rotation amount between do not have state devious, namely deviation D is 0 (D=0) or is roughly 0
State, be that uncharged state is corresponding with the load that is applied to stepping motor 44 by strap T.This deviation region a
1Corresponding to such as because strap T uses up etc., and strap T is not supplied to the state (without the belt loop state) that seam detects the leading section 61b place of auxiliary rod 61.
Deviation region a
2The leading section 61b place supply that detects auxiliary rod 61 corresponding to for example seam has strap T, and this leading section of process 61b's is the situation of the normal part of strap T.That is, with this deviation region a
2Scope in corresponding departure drop in the normal range (NR) of the deviation D when carrying strap T.
Deviation region a
3With deviation D greater than deviation region a
2Situation corresponding, the leading section 61b place of for example detecting auxiliary rod 61 with seam supplies with strap T, and is the situation correspondence of the seam portion of strap T through this leading section 61b.
Deviation region a
4Also large situation is corresponding when detecting the leading section 61b of auxiliary rod 61 than the seam portion of strap T through seam with deviation D, for example corresponding with the conveying defective mode that causes strap T to carry by following situation: in the path or be supplied to before the path, strap T hook or be wrapped on certain position and situation about can't supply with; Perhaps situations such as stepping motor 44 lockings or imbalance.
White space b
1With deviation region a
1With deviation region a
2The border separate white space b with predetermined distance
2With deviation region a
2With deviation region a
3The border separate with predetermined distance.That is in the present embodiment, be deviation region a in the normal range (NR) of deviation D,
2Front and back white space b is set
1, b
2, with this deviation region a
2Each deviation region a with adjacency
1, deviation region a
3The border be set as each other across predetermined distance.
In addition, each threshold value D
0～D
4Can be according to the measured value of the deviation D that obtains by experiment in advance, with each deviation region a
1～a
4Set as requested accordingly.
And, for example shown in Figure 4 among the ROM 513 in the present embodiment, store the determining program 513b and the pipage control handling procedure 513c that in the interruption of carrying out with the timing of specified period is processed, call.
Determining program 513b has following function: judge to the instruction rotation amount of stepping motor 44 outputs and by the deviation D between the actual rotation amount of rotary encoder 65 detected stepping motors 44, be arranged in which deviation region of the deviation data 513a (with reference to Fig. 5) that is stored in ROM 513, simultaneously, based on this judged result, the conveying that seam or hook by strap T (belt loop material) are caused is bad and judge by the having or not of strap T that causes such as using up.
Specifically, by the CPU 511 that carries out this determining program 513b, for example be positioned at deviation region a being judged as deviation D
1(D＜=D
0) scope in situation under, be judged as do not have belt loop, be that strap T is exhausted.In addition, be positioned at deviation region a being judged as deviation D
2(D
1＜=D＜=D
2) scope in situation under, be judged as normal range (NR).In addition, be positioned at deviation region a being judged as deviation D
3(D
3＜=D＜=D
4) scope in situation under, the seam portion (stage portion) that is judged as strap T is detecting the leading section 61b of auxiliary rod 61 through seam, be positioned at the larger deviation region a of deviation in deviation D
4(D
4In the situation in＜=D) the scope, be judged as and strap T occur and carry bad.
CPU511 and determining program 513b consist of judging unit of the present invention.
According to pipage control handling procedure 513c, can make CPU 511 based on the judged result as the CPU 511 of above-mentioned judging unit, execution stops the report program that the pipage control of the driving of stepping motor 44 is processed or carried out the report corresponding with aforementioned judged result, and this pipage control handling procedure 513c works as pipage control of the present invention unit with CPU 511.
Specifically, for example utilizing the CPU 511 that works as judging unit by carrying out above-mentioned determining program 513b, be judged as and using up or carrying in the bad situation of strap T occur, controlled by the CPU 511 that carries out this pipage control handling procedure 513c, carrying out following pipage control processes: execution stops each motor 44,52,54 and each electromagnetic valve 111,53,55 and processing that the device integral body of loop belt feeding device 13 is stopped, perhaps by making the not shown display part (display unit) that is arranged on the guidance panel 56 show wrong or the sound that gives a warning, carry out the report corresponding with judged result.
And, at the CPU 511 that works as above-mentioned judging unit, be judged as deviation D and be positioned at deviation region a
3Scope in, the seam portion of strap T (stage portion) has been passed through in the situation of the leading section 61b that seam detects auxiliary rod 61, control part 51 by to above-mentioned supply unit 37, draw the action of unit 38, cutting unit 34, supply action with belt loop feed unit 35 sides is controlled with the timing of regulation, thereby will not have jointed part to supply with as belt loop, and remove and contain jointed part.At this moment, by with in the path from leading section 61b to off-position till path pre-stored among ROM 513, thereby for example in the path that will contain till jointed part has been carried from leading section 61b to off-position, the seam portion of strap T is crossed in the situation of off-position, remove immediately the processing that contains jointed part.
(action specification of embodiment)
Below, have the action specification of the loop belt feeding device 13 of said structure.
Fig. 6 is the flow chart of elemental motion that expression has the loop belt feeding device 13 of said structure, illustrates in the loop belt feeding device 13, and the supply unit 37 that carries out under the control of control part 51, the control of drawing unit 38, cutting unit 34 are processed.In addition, Fig. 7 is the flow chart that is illustrated in the action that the interruption of executed in parallel in the elemental motion of loop belt feeding device shown in Figure 6 13 processes, and illustrates in the loop belt feeding device 13, and the judgement processing of carrying out under the control of control part 51, pipage control are processed.
At first, as shown in Figure 6, if the power connection of loop belt feeding device 13, then CPU511 implements the initialization process of deviation data D described later, stage portion counter B, each stage portion position indicator C etc.In addition, in the situation that feed path does not have belt loop during power connection, before power connection, manually the front end of strap T is placed in advance conveying roller 40 below.Thus, control part 51 is by automatically making when the power connection stepping motor 44 rotations make the front end of strap T between movable blade 72, fixed blade 73, then use electromagnetic valve 53 energisings by making to cut off, thereby carry out the location (step S1) of the front end of strap T.Then, supply action (the step S2 that starts belt loop if detect the making operation of making beginning switch 510; Be), then CPU 511 drives conveying roller 40 (step S3) by the driving pulse to stepping motor 44 output specified quantities.
Then, shown in the arrow B of Fig. 2, if transfer out the front end of strap T from delivery port, then CPU 511 drives clamping limb with motor 52, makes clamping limb 101 advance to clip position (progressive position: with reference to Fig. 3) (step S4).Then, CPU 511 is the front end (belt loop front end) (step S5) of clamping strap T by driving clamping limb with electromagnetic valve 111, under the state that continues driving conveying roller 40, drive clamping limb with motor 52, clamping limb 101 is retreated to belt loop formation position (going-back position: with reference to Fig. 3) (step S6).
Then, CPU 511 drives shearing device (step S7) by driving to cut off with electromagnetic valve 53, supply with motor 54 and supply electromagnetic valve 55 by driving, the control (step S8) of belt loop is supplied with in execution to sewing machine main body 12, after finishing belt loop by sewing machine main body 12 and making, again will make thing S and be arranged on the Sewing machines and wait for the connection (step S2) of making beginning switch 510.
On the other hand, after initialization process was finished in step S1, CPU 511 implemented the interruption processing that belt loop is supplied with that is used for shown in Figure 7 concurrently with the above-mentioned processing of making from step S2 to step S8.
Connect and drive stepping motor 44 if make beginning switch 510, then CPU 511 is by at every turn with M pulse of regulation (for example, M=1) driving stepping motor 44 (step S101; Be) time, to counting from the umber of pulse of rotary encoder 65 outputs, thereby detect the actual rotation amount of the stepping motor 44 of each moment, executive basis is to exporting so far the number of drive pulses of stepping motor 44 to and by rotary encoder 65 detected actual rotation amounts, asking for the processing (step S102) of deviation D.Then, CPU 511 is by carrying out determining program 513b, judges that the normal range (NR) whether this deviation D is arranged in pre-stored deviation data 513a at ROM 513 is deviation region a
2(D
1＜=D＜=D
2) interior (step S103).
In step S103, in the situation that be judged as not (step S103 in normal range (NR) of deviation D; No), CPU 511 carries out deviation D and whether is positioned at deviation region a
3(D
3＜=D＜=D
4) in, be whether the seam portion (stage portion) of strap T detects the leading section 61b of auxiliary rod 61 through seam judgement (step S104).
In step S104, be positioned at deviation region a being judged as deviation D
3(step S104 in the interior situation; Be), CPU 511 makes the stage portion counter B that the quantity of stage portion is counted add 1 (step S105), simultaneously the stage portion indicator CB of the conveying capacity subsequently of the stage portion that goes out of expression current detection set, this indicator CB is made as current conveying capacity 0 (step S106).
On the other hand, in step S103, be positioned at normal range (NR) a being judged as deviation D
2(step S103 in the interior situation; Be), CPU 511 judges that whether the value of stage portion counter B is more than or equal to 1 (step S107).In addition, as described later, in the outside of the off-position that will be expelled to by the stage portion of the correspondence of stage portion indicator CB regulation movable blade 72, fixed blade 73 and the moment of cutting off, the value of stage portion counter B is successively decreased.Thus, the value of so-called stage portion counter B is more than or equal to 1, is to be illustrated in the transport path of strap T to have at least a stage portion, and CPU 511 judges whether there is stage portion in the transport path of strap T by the judgement of step S107.
And CPU 511 is judged to be (step S107 in the situation that does not have stage portion in the transport path of strap T in step S107; No), return step S101, judge stepping motor 44 and whether again drivenly compared when last time judging M pulse.
On the other hand, in step S107, be judged to be B＞=1, namely in the transport path of strap T, having a stage portion (step S107; Be) situation under, each stage portion indicator C1～CB of 511 pairs of current settings of CPU adds respectively M (pulse) (step S108), judge simultaneously the value of the stage portion indicator C1 corresponding with stage portion foremost, whether more than or equal to the number of drive pulses L (step S109) of the stepping motor 44 till the off-position that this stage portion is delivered to movable blade 72, fixed blade 73 from the detection position of stage portion.That is, by the processing of this step S109, CPU 511 judges whether the stage portion of finding has been transported to the position of crossing off-position in step S104.
On the other hand, in step S109, be judged to be the value of stage portion indicator C1 more than or equal to (step S109 in the situation of L; Be), in order to prevent that the corresponding stage portion of stage portion indicator C1 is supplied with to Sewing machines, CPU 511 stops the driving of stepping motor 44, drive simultaneously and cut off the driving shearing device with electromagnetic valve 53, carry out the processing of removing stage portion (seam) part, and, show that in the display part (display unit) of guidance panel 56 report detects the error code (step S110) of the regulation of this situation of stage portion.Then, because utilized to interrupt processing strap T is cut off, so with the handling interrupt so far in the elemental motion of loop belt feeding device shown in Figure 6 13, output begins to carry out the instruction (step S111) that new belt loop is supplied with action from the processing of step S3.
Then, in order to carry out subsequent treatment, CPU 511 makes stage portion counter B successively decrease (B=B-1) with corresponding with the stage portion quantity that has reduced one by the cut-out processing, simultaneously, carrying out the descending of the stage portion indicator of each stage portion processes, so that each stage portion is according to the order related with the stage portion indicator (step S112) with respect to off-position, and then return the processing of step S101.
On the other hand, in step S104, be judged as deviation D not at deviation region a
3(step S104 in the interior situation; No), whether 511 pairs of deviation D of CPU are positioned at deviation region a
1(D＜=D
0) in, namely whether be to judge (step S113) without belt loop state (because belt loop such as uses up at the state that causes not having strap T).
In step S113, be positioned at deviation region a being judged as deviation D
1(step S113 in the interior situation; Be), CPU 511 is by on the not shown display part that is arranged on the guidance panel 56, for example represent that the mistake that strap T has used up shows, perhaps send expression and urge the warning that replenishes new strap T, and carry out pipage control and process, carry out the report corresponding with the judged result of judging (step S114), then, carry out and to make stepping motor 44 and each motor 52,54 driving stop and controlling the processing (step S115) that device integral body that each electromagnetic valve 111,53,55 makes loop belt feeding device 13 stops.
On the other hand, in step S113, be judged as deviation D not at deviation region a
1(step S113 in the interior situation; No), whether 511 pairs of deviation D of CPU are positioned at deviation region a
4(D
4＜=D) in, namely, judge whether to be in because following situation causes carrying the conveying defective mode (step S116) of strap T, for example, in the path or before being supplied to the path, strap T hook or winding and situation about can't supply with, perhaps situations such as stepping motor 44 lockings or imbalance on certain position.
In step S116, be positioned at deviation region a being judged as deviation D
4(step S116 in the interior situation; Be), CPU 511 carries out pipage control and processes, on the not shown display part of guidance panel 56, for example represent that the mistake demonstration of hook has occured strap T in the path, perhaps send expression and urge the warning that is reentered into strap T, to carry out the report corresponding with the judged result of judging (step S117), then, carry out the driving make stepping motor 44 and stop and controlling each electromagnetic valve 111,53,55 and processing (step S115) that device integral body is stopped.
On the other hand, in step S116, be judged as deviation D not at deviation region a
4(step S116 in the interior situation; No), CPU 511 makes and is judged as the frequency n that this deviation D do not belong to any deviation region and increases, namely increase progressively (n=n+1) (step S118), judge that simultaneously whether n after increasing progressively is more than or equal to specified value (being 3 in the present embodiment for example) (step S119) in this step S118.
And in step S119, n is less than (step S119 in the situation of specified value (being 3 in the present embodiment for example) after increasing progressively; No), return step S101, repeatedly carry out above-mentioned processing.On the other hand, in step S119, the n after increasing progressively is more than or equal to (step S119 in the situation of specified value; Be), CPU 511 is on the not shown display part of guidance panel 56, for example represent that the mistake that has produced unknown error shows, carry out the report corresponding with the judged result of judging (step S120), then, carrying out the driving make stepping motor 44 stops and controlling each electromagnetic valve 111,53,55 and processing (step S115) that device integral body is stopped.
(effect of embodiment)
The loop belt feeding device 13 related according to above-described present embodiment can utilize rotary encoder 65 detections as the actual rotation amount of the stepping motor 44 of the drive source setting of supply unit 37.In addition, based on this testing result, carry out the CPU 511 of determining program 513b, can be by judging to the instruction rotation amount of stepping motor 44 conveyings and by the deviation D between the actual rotation amount of rotary encoder 65 detected stepping motors 44, be arranged in which deviation region of the deviation data 513a that is stored in ROM 513, thereby bad to the conveying that is caused by the seam portion of strap T (belt loop material) or hook etc., perhaps judge by the having or not of belt loop material that causes such as using up.Then, can be by the CPU 511 that carries out pipage control handling procedure 513c, carry out pipage control based on the judged result of the CPU 511 that works as judging unit and process, the driving of stepping motor 44 is stopped, carrying out simultaneously the report corresponding with the judged result of aforementioned judging unit.Thus, can prevent the poor stitching quality of belt loop, its result can realize the raising of the reliability of loop belt feeding device 13.In addition, this moment is because the not shown display part (display unit) of guidance panel 56 carries out the demonstration corresponding with the judged result of judging unit, so can easily learning, the operator cause the driving of stepping motor 44 to stop, the reason that the conveying of belt loop material stops can promptly to be tackled.
In addition, be set as each other across the interval of regulation by at least a portion with the border of each deviation region, thereby the judgement white space of judging unit can be set, can avoid for before and after the threshold value, for example deviation region a
1And a
2Or deviation region a
2And a
3Between the scope that can't judge of boundary, carry out predicative control.That is, for example in certain scope before and after the threshold value, existence can't be broken and be judged qualitatively the situation that belongs to which deviation region.For above-mentioned scope, for example, if based on the threshold value that does not have spaced single-point, determine to belong to which kind of situation to the instruction rotation amount of stepping motor 44 outputs and by the deviation between the actual rotation amount of rotary encoder 65 detected stepping motors 44, then might appear at and carry out the situation that stops or when needs stop, not stopping when not needing to stop.Therefore, by the judgement white space of judging unit is set, judge it is which deviation region in the situation that can't break qualitatively, can reduce the frequency that the stepping motor 44 as the drive source of supply unit is stopped by the CPU 511 that works as the pipage control unit.Thus, on one side can prevent the poor stitching quality of belt loop, Yi Bian suppress to carry the stop frequency of action, realize the raising of production efficiency.
And by possessing preload unit 60, can make to the instruction rotation amount of stepping motor 44 outputs and by the deviation between the actual rotation amount of rotary encoder 65 detected stepping motors 44 increases.Therefore, the conveying that can be further easily and reliably seam portion or hook by strap T be caused is bad or judge by the having or not of strap T that causes such as using up.
In addition, in the present embodiment, only in existing loop belt feeding device, physically add the simple structure of rotary encoder 65, on this basis, by having determining program 513b and pipage control handling procedure 513c, can detect strap T seam portion (stage portion), carry the unknown error that has that it's too late of bad, strap T, carry out pipage control by control part 51 based on this testing result and process, can effectively prevent the generation of the poor stitching quality of belt loop.
In addition, because need to not be provided as for example analogue instrument of seam detecting unit and to the transfer unit of this analogue instrument reflection strap T thickness (for example at existing loop belt feeding device, gear etc.), so can make the simple in structure of loop belt feeding device 13, thereby can realize the raising of the reliability of this loop belt feeding device 13.
(other)
In addition, rotary encoder 65 in the above-described embodiment with the output shaft 44a arranged coaxial of stepping motor 44, but also can be for example coaxial with conveying roller 40, perhaps be arranged on via the rotary coding pulley and drive with on the Timing Belt 46.Said structure also can obtain the effect identical with above-mentioned embodiment.
In addition, in the above-described embodiment, for the deviation of the output pulse of the driving pulse that makes stepping motor 44 and rotary encoder 65 increases, configure seam and detected auxiliary rod 61, but for example pass through the configuration rotor block and imposed load, also can obtain identical effect, perhaps make the transport path bending and imposed load also can obtain identical effect by constituting.
In addition, seam detects the leading section 61b of auxiliary rod 61, for example also can form the shape with planar portions.In the case, preferably this planar portions is installed as with strap T and contacts, thereby guarantees that the contact area between strap T and the leading section 61b is larger.If like this, then because can guarantee to make the time that produces above-mentioned deviation longer, so easily detect this deviation.
And, it is that detection for the seam portion that makes strap T etc. becomes easily and arranges that seam detects auxiliary rod 61, even but do not detect auxiliary rod 61 because described seam not being set, conveying roller 40 is when usually carrying, the seam portion of strap T (stage portion) through the out-of-date and situation that do not have a strap T (namely, the state that strap T uses up) etc. can produce load variations under, thereby the deviation between the output pulse of the driving pulse of stepping motor 44 and rotary encoder 65 changes, and therefore can carry out the detection identical with above-mentioned embodiment.That is, for example also can adopt the structure of from the structure of above-mentioned embodiment, omitting seam detection auxiliary rod 61.
Claims (3)
1. loop belt feeding device, it is being to making thing and making the Sewing machines of belt loop, for the belt loop of giving specific length and cutting off,
It is characterized in that having:
Supply unit, it as drive source, carries the belt loop material that the cloth stitching is formed with stepping motor along prescribed path;
Detecting unit, it detects the actual rotation amount of aforementioned stepping motor; And
Control module, its driving to aforementioned supply unit is controlled,
Aforementioned control module has:
Memory cell, its pre-stored deviation data, this deviation data has for the instruction rotation amount of exporting to aforementioned stepping motor and by the deviation between the actual rotation amount of the detected aforementioned stepping motor of aforementioned detecting unit, a plurality of deviation regions that utilize a plurality of threshold values to mark off;
Judging unit, it is by judging to the instruction rotation amount of aforementioned stepping motor output and by the deviation between the actual rotation amount of the detected aforementioned stepping motor of aforementioned detecting unit, be arranged in which aforementioned deviation region of the deviation data that is stored in aforementioned memory cell, thereby in the following situation any one is judged at least, that is the bad or aforementioned belt loop material of conveying that, is caused by seam or the hook of aforementioned belt loop material is used up; And
The pipage control unit, it is carried out pipage control and processes based on the judged result of aforementioned judging unit, processes the driving that stops aforementioned stepping motor by this pipage control, carries out simultaneously the report corresponding with the judged result of aforementioned judging unit.
2. loop belt feeding device according to claim 1 is characterized in that,
The border of the deviation region of two adjacency in aforementioned each deviation region is set as each other across the interval of stipulating.
3. loop belt feeding device according to claim 1 and 2 is characterized in that,
Have preload unit, it is imposed load in the belt loop material that is undertaken by aforementioned supply unit is carried.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-315912 | 2007-12-06 | ||
| JP2007315912A JP5117836B2 (en) | 2007-12-06 | 2007-12-06 | Belt loop feeder |
| JP2007315912 | 2007-12-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101451292A CN101451292A (en) | 2009-06-10 |
| CN101451292B true CN101451292B (en) | 2013-03-27 |
Family
ID=40733762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810178949 Active CN101451292B (en) | 2007-12-06 | 2008-12-05 | Loop belt feeding device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5117836B2 (en) |
| CN (1) | CN101451292B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5965740B2 (en) * | 2012-06-25 | 2016-08-10 | Juki株式会社 | Tape sewing device |
| JP6242246B2 (en) * | 2014-02-28 | 2017-12-06 | ブラザー工業株式会社 | Loop piece feeder |
| CN104878525B (en) * | 2014-02-28 | 2017-12-01 | 兄弟工业株式会社 | Feedway and sewing system |
| CN105506867B (en) * | 2014-10-09 | 2019-12-10 | Juki株式会社 | Sewing machine |
| CN107090671B (en) * | 2017-05-11 | 2022-08-30 | 深圳超诚缝纫科技有限公司 | Full-automatic loop machine and control method thereof |
| CN110318172B (en) * | 2019-08-12 | 2024-01-09 | 深圳超诚缝纫科技有限公司 | Belt feeding device, belt feeding method and sewing equipment |
| CN112481845A (en) * | 2020-11-20 | 2021-03-12 | 浙江科技学院 | Full-automatic trousers ear sewing equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0825289A1 (en) * | 1996-08-22 | 1998-02-25 | Nähtechnik Sahl Ges.m.b.H. | Device for feeding an elastic band to the sewing area of a sewing machine |
| US6209468B1 (en) * | 1999-07-09 | 2001-04-03 | Porter International | Method and apparatus for sewing handles on a strip of material |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001041731A (en) * | 1999-07-28 | 2001-02-16 | Juki Corp | Cloth thickness detecting device |
| JP4271307B2 (en) * | 1999-08-03 | 2009-06-03 | Ｊｕｋｉ株式会社 | Tape material feeding operation control method and tape material feeding device |
| JP4336420B2 (en) * | 1999-08-06 | 2009-09-30 | Ｊｕｋｉ株式会社 | Belt loop feeder |
-
2007
- 2007-12-06 JP JP2007315912A patent/JP5117836B2/en not_active Expired - Fee Related
-
2008
- 2008-12-05 CN CN 200810178949 patent/CN101451292B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0825289A1 (en) * | 1996-08-22 | 1998-02-25 | Nähtechnik Sahl Ges.m.b.H. | Device for feeding an elastic band to the sewing area of a sewing machine |
| US6209468B1 (en) * | 1999-07-09 | 2001-04-03 | Porter International | Method and apparatus for sewing handles on a strip of material |
Non-Patent Citations (4)
| Title |
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| JP特开2000-342873A 2000.12.12 |
| JP特开2000-5473A 2000.01.11 |
| JP特开2001-46771A 2001.02.20 |
| JP特开平11-128577A 1999.05.18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5117836B2 (en) | 2013-01-16 |
| CN101451292A (en) | 2009-06-10 |
| JP2009136487A (en) | 2009-06-25 |
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