CN103950288B - A kind of defeated paper detects safeties - Google Patents
A kind of defeated paper detects safeties Download PDFInfo
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- CN103950288B CN103950288B CN201410163543.5A CN201410163543A CN103950288B CN 103950288 B CN103950288 B CN 103950288B CN 201410163543 A CN201410163543 A CN 201410163543A CN 103950288 B CN103950288 B CN 103950288B
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Abstract
The defeated paper that the present invention relates to a kind of lithographic plate eight look printing machine detects safeties, this defeated paper detects safeties, comprise two fixed supports, lateral paper guide, lateral paper guide fixed bar, rolling bearing, lever block, tension adjusting screw, back-moving spring and discharge cock assembly, wherein, described two fixed supports are fixed on the main support of the defeated cardboard of supply unit respectively, lateral paper guide is fixed on lateral paper guide fixed bar by bolt-locking, lateral paper guide fixed bar is arranged between described two fixed supports, two ends are connected by rolling bearing, realize freely rotating, one end of lateral paper guide fixed bar connects integral with lever block, lever block is equipped with tension adjusting screw and spring, between the switch contact of lever block lower surface and discharge cock assembly, gapless micro-pressure is closely connected.The foreign matter that this device prevents paper from carrying secretly enters printing element with paper, causes equipment anti-scratch sheath to damage, good reliability, easy to adjust.
Description
Technical field
The defeated paper that the present invention relates to a kind of lithographic plate eight look printing machine detects safeties.
Background technology
Existing a kind of Japan produces little gloomy LS40SP lithographic plate eight look offset press (RMB about more than 1,400 ten thousand yuan), and this equipment mainly contains with lower unit composition, 1. defeated paper unit; 2. printing element (different according to printed matter technological requirement, monochrome and polychrome can be divided into); 3. delivery unit, concise and to the point operation principle to meet the paper of technological requirement, by the continual supply of defeated paper partial continuous, is transferred to printing element, gives delivery unit after being completed for printing.The general principle of printing element is exactly by the upper picture and text of printing proprietary material (PS version) and the two-part ink affinity of blank, hydrophily, at certain pressure and water, passed by picture and text under ink effect and move, realization meets the bright printed matter of process requirements, the general principle of defeated paper unit, fly to reach by defeated paper exactly, by separation and paper feeding suction nozzle, by paper by the continuous continual output of technological requirement, printing element is inputted continuously by defeated paper platform, whole defeated paper, printing, the each unit of collection is all by machinery, light, the organic programming numerical control of the various actions such as electricity realizes.
Above-mentioned lithographic plate eight look offset press, it is a kind of printing machine possessing property, it can realize, and paper tow sides are disposable completes the exquisite printed matter meeting technological requirement simultaneously, due to the particularity of this type of press structure, to the cylinder surface (impression of equipment printing element, transmission) propose special requirement, due to printing machine high-speed cruising, printed matter is insufficient for drying time, (bulk material of sheath is sheetmetal just must to increase anti-scratch sheath at cylinder surface, surface is composite), otherwise printed matter will be scratched, and qualified product cannot be produced.
Due to the special tectonic of above-mentioned lithographic plate eight look offset press, very high requirement is proposed to printing sheets, foreign matter (as stiff in paper block, metal object) can not be had in printing sheets to exist, otherwise equipment anti-scratch sheath will be made to cause damage, positive and negative eight look offset presses have 14 sheaths, nearly 3.5 ten thousand yuan of import sheath.Accident case is more, and loss is very large, the highest disposable loss reaching nearly 500,000 yuan.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of defeated paper and detects safeties, and these defeated paper detection safeties can prevent paper from carrying foreign matter secretly and enter printing element with paper, thus avoid the damage of equipment anti-scratch sheath.
For solving the problems of the technologies described above, a kind of defeated paper of the present invention detects safeties, comprise left side fixed support plate, right side fixed support plate, lateral paper guide, lateral paper guide fixed bar, rolling bearing, lever block, discharge cock assembly and back-moving spring, wherein, described left side fixed support plate, right side fixed support plate is fixed on the left side main support of the defeated cardboard of defeated paper unit respectively, on the main support of right side, lateral paper guide is fixed on lateral paper guide fixed bar by bolt-locking, the two ends of lateral paper guide fixed bar are arranged between described left side fixed support plate and right side fixed support plate respectively by bearing, pass through position block, pin, lever block is located, one end of described lateral paper guide fixed bar is stretched out described left side fixed support plate and is had extension, described extension is fixedly connected with described lever block, the lower end of described lever block is provided with described discharge cock assembly, the uper side surface being located at described lever block just arranges a switch gap adjusting part moving up and down to described discharge cock assembly, during paper foreign, described switch gap adjusting part is conflicted at the uper side surface of described lever block, make micro-pressure blind-mate between the lower surface of described lever block and the switch contact of discharge cock assembly, the top of described lever block is also provided with described back-moving spring, the working face that described lateral paper guide is adjacent with the defeated cardboard of defeated paper unit has inclined ramp, when paper surface has foreign matter, lateral paper guide will drive lateral paper guide fixed bar to rotate, lateral paper guide fixed bar drives lever block to rotate, lever block is separated with switch contact, equipment is under electrical equipment control, out of service, after paper containing foreign matter is taken out, under the effect of back-moving spring, switch contact and lever block recover rapidly gapless, micro-pressure coordinates, and electrical equipment control recovers normal condition.
Described discharge cock assembly comprises switch, switch enclosure and switch mounting bracket, described switch-linear hybrid is in switch enclosure, switch enclosure is fixed by screws on switch mounting bracket, and described switch mounting bracket is fixed in the support bracket fastened side surfaces in described left side by screw and pad.
Described switch gap adjusting part comprises spacing regulating block and spacing adjustment screw, and described left side fixed support is bolted to connection described spacing regulating block, and spacing regulating block is provided with screwed hole, and described spacing adjustment screw is arranged in described screwed hole.
Safeties positioning supporting rod is provided with between described left side fixed support plate and right side fixed support plate, the two ends of described safeties positioning supporting rod are located respectively by screw lock, described safeties positioning supporting rod stretches out one end that prolongation is positioned at lever block and is provided with screwed hole, and an adjustment screw is connected in described screwed hole for regulating the pretightning force size of described back-moving spring.
Described lateral paper guide is fixed on lateral paper guide fixed bar by bolt-locking, and parallel with the defeated paper-board planar of defeated paper unit, and the distance in the defeated cardboard face of lateral paper guide and defeated paper unit is increase 0.3-0.5mm on the printed matter paper sheet thickness meeting technological requirement.
On the left side main support that described left side fixed support plate and right side fixed support plate are arranged on defeated paper unit by bolt-locking and right side main support, at a distance of printing element input gripper place 1000mm.
Defeated paper tape both sides on defeated cardboard and just to the stainless sheet steel installing bar shaped below safeties lateral paper guide, the thickness of the stainless sheet steel of described bar shaped is consistent with defeated tape thickness, and width is consistent with lateral paper guide, stainless sheet steel lures paper interface to be provided with slope.
Above-mentioned defeated paper detects safeties, through lot of experiments with run detection for a long time, proves that this device effectively can prevent paper from carrying foreign matter secretly and enter printing element with paper, good reliability, easy to adjust, thus avoids the damage of equipment anti-scratch sheath.
Accompanying drawing explanation
Fig. 1 is the STRUCTURE DECOMPOSITION figure that a kind of defeated paper of the present invention detects safeties;
Fig. 2 is the sectional view of lateral paper guide;
Wherein, 1, the defeated chipboard holder in left side; 2, the defeated chipboard holder in right side; 3, left side fixed support plate; 7, right side fixed support plate; (4,19,26,30), bolt; (5,9,21,33,34), screw; (6,8), bearing; 10, lateral paper guide fixed bar; 11, pin; 12, position block; 13, positioning supporting rod; 14, tension adjusting screw; 15, switching space regulating block; (16,17), switching space adjustment screw; 18, switch mounting bracket; 22, switch; 23, switch enclosure; 24, supporting plate protective cover; (20,25,29,31), pad; 27, spring; 28, lateral paper guide; 32, lever block;
Fig. 3 is the PLC signal graph that defeated paper detects safeties;
Wherein, LS-FF
0for the signal output point of switch; X04.000D is the signal input point of PLC.
Detailed description of the invention
As shown in Figure 1, a kind of defeated paper detects safeties, this device comprises left side fixed support 3, right side fixed support 7, lateral paper guide 28, lateral paper guide fixed bar 10, rolling bearing, lever block 32, tension adjusting screw, back-moving spring and electric switch, the assembly method of single unit system as shown in Figure 1, on the left side main support 1 that safeties are assemblied in the defeated cardboard of defeated paper unit and right side main support 2, what described left side fixed support plate 3 was stretched out in one end of described lateral paper guide fixed bar 10 has extension, described extension is fixedly connected with described lever block 32, the lower end of described lever block 32 is provided with described discharge cock assembly, the uper side surface being located at described lever block 32 arranges a switch gap adjusting part moving up and down just to described discharge cock assembly, during paper foreign, described switch gap adjusting part is conflicted at the uper side surface of described lever block 32, make micro-pressure blind-mate between the lower surface of described lever block 32 and the switch contact of discharge cock assembly, the top of described lever block 32 is also provided with described back-moving spring 27, as shown in Figure 2, the side that described lateral paper guide 28 is adjacent with the defeated cardboard of defeated paper unit has inclined ramp, when paper surface has foreign matter, lateral paper guide 28 will drive lateral paper guide fixed bar 10 to rotate, lateral paper guide fixed bar 10 drives lever block 32 to rotate, lever block 32 is separated with switch contact, equipment is under electrical equipment control, out of service, after paper containing foreign matter is taken out, under the effect of back-moving spring 27, switch contact and lever block 32 recover gapless rapidly, micro-pressure coordinates, electrical equipment control recovers normal condition.
Described discharge cock assembly comprises switch 22, switch enclosure 23 and switch mounting bracket 18, described switch 22 is arranged in switch enclosure 23, switch enclosure 23 is fixed on switch mounting bracket 18 by screw 21, and described switch mounting bracket 18 is fixed on the sidepiece A of described left side fixed support 3 on the surface by screw 19 and pad 20.
Also comprise safeties positioning supporting rod 13, the two ends of described safeties positioning supporting rod 13 are respectively by screw 5 and 9 locking positioning.
Lateral paper guide 28 is fixed on lateral paper guide fixed bar 10 by bolt-locking, its specific requirement is parallel with the defeated paper-board planar of defeated paper unit, spacing can regulated according to the thickness requirement difference of printed matter paper, lateral paper guide 28 sets with the distance in the defeated cardboard face of defeated paper unit, because paper has certain bending, out-of-flatness, unavoidably impulsive force is produced to lateral paper guide 28, easily cause paper machine when foreign is carried secretly out of service, make troubles to practical operation, want the existence that foreign matter can be detected, prevent the generation of equipment breakdown, the printed matter paper sheet thickness meeting technological requirement increases 0.3-0.5mm, so just can guarantee that machine can normally run.Lateral paper guide 28 is one of core work point of safeties with the reasonable set of the overall spacing in the defeated cardboard face of defeated paper unit.
Uninterrupted defeated paper be by defeated cardboard above the operation that moves in circles that realizes under pull of vacuum and bristle brush wheel acting in conjunction of defeated paper tape, existence due to defeated paper tape causes whole defeated cardboard entirety not on a horizontal plane, and defeated paper detects safeties and needs a smooth working face on a horizontal plane, we adopt on defeated cardboard defeated paper tape both sides and just to safeties lateral paper guide 28 below installation bar shaped stainless sheet steel, consistent with defeated tape thickness, width is consistent with lateral paper guide 28.Stainless sheet steel lures paper interface to need certain slope, the trouble-free operation of such guarantee paper.Transformed by above-mentioned local horizontal, make the integral planar defining one fixed width below safeties, ensure Detection results and do not affect defeated paper tape normally to run.
After lateral paper guide 28 and lateral paper guide fixed bar 10 form one by bolt-locking, be arranged between left side fixed support plate 3 and right side fixed support plate 7, there is rolling bearing at two ends, free rotation can be realized, lateral paper guide fixed bar 10 one end is connected with lever block 32, pass through screw lock, lever block 32 is equipped with tension adjusting screw 14 and back-moving spring 27, the selection of back-moving spring 27 will ensure 2 points: 1. elastic force is moderate, after ensureing foreign matter to be detected, lever block 32 is subjected to displacement, disconnection instantaneous with switch contact, otherwise, although the paper carrying foreign matter secretly cannot pass through safeties, but promptly and accurately can not send signal out of service, the still continual work of defeated paper unit, the damage of defeated other device of paper unit can be caused after resulting in blockage, 2. appearance and size is moderate, forms an entirety.
When paper normally runs between lateral paper guide 28 and the defeated cardboard of defeated paper unit, paper will supply printing element uninterruptedly, the side that described lateral paper guide 28 is adjacent with the defeated cardboard of defeated paper unit has inclined ramp, when paper carry secretly foreign matter enter run between lateral paper guide 28 and the defeated cardboard of defeated paper unit time, thickness due to foreign matter adds that printed matter thickness is greater than the spacing of setting, lateral paper guide 28 will drive lateral paper guide fixed bar 10 to rotate, lateral paper guide fixed bar 10 drives lever block 32 to rotate, the lower surface of lever block 32 separates with the switch contact of discharge cock assembly.
Fixed support plate 3 and fixed support plate 7 are arranged on the defeated chipboard holder of defeated paper unit 1 and the defeated chipboard holder 2 of defeated paper unit by bolt-locking, require at a distance of printing element input gripper place 1000mm, its objective is the breadth width and uninterrupted paper supply requirement continuously of considering paper, if the foreign matter that paper is carried secretly is when end, the gripper of the printed unit in front end bites input printing element colour cell, though detect through safeties and send signal out of service, but due to the effect of inertia, the possibility being brought into printing element colour cell is still had containing the paper carrying foreign matter secretly, cause the damage of device-specific anti-scratch sheath.No matter such equipment, when normal operation, detects the foreign matter of paper at any one position, and equipment all can be out of service within the scope of the running orbit of safety.
Described electrical equipment control adopts PLC to control, and Fig. 3 is the PLC signal graph that defeated paper detects safeties, the switch contact LS-FF of described discharge cock
0output point accesses in the PLC signal input point X04.000D in Fig. 3, when the switch contact action of discharge cock, through the programme controlled effect of internal logic circuit, outside will produce a series of action, direct effect after action swings tooth to inhale iron coil dead electricity, swing tooth and no longer accept initiatively paper feed operation, now, print couple lose paper feeding → front lay detect general character relation unbalance after cause a front lay sky control action → fly to reach and defeated paper yarn band stops swinging to front lay place tooth paper supply → combined pressure function and transfers tripping state → stop to forme delivered ink amount → powder spraying system no longer to carrying powder source → machine to depart from from printing state when losing printing state by version ink roller to, speed drops to running speed (for dry run state) → operating personnel and checks that reduction of speed reason → effective paper etc. carrying foreign matter secretly that stops enters printing element damage anti-scratch sheath.
Claims (3)
1. a defeated paper detects safeties, it is characterized in that this device comprises left side fixed support plate (3), right side fixed support plate (7), lateral paper guide (28), lateral paper guide fixed bar (10), rolling bearing, lever block (32), discharge cock assembly and back-moving spring (27), wherein, described left side fixed support plate (3), right side fixed support plate (7) is fixed on the left side main support (1) of the defeated cardboard of defeated paper unit respectively, on right side main support (2), lateral paper guide (28) is fixed on lateral paper guide fixed bar (10) by bolt-locking, the two ends of lateral paper guide fixed bar (10) are arranged between described left side fixed support plate (3) and right side fixed support plate (7) respectively by bearing, and by position block (12), pin (11), lever block (32) is located, one end of described lateral paper guide fixed bar (10) is stretched out described left side fixed support plate (3) and is had extension, described extension is fixedly connected with described lever block (32), the lower end of described lever block (32) is provided with described discharge cock assembly, the uper side surface being located at described lever block (32) just arranges a switch gap adjusting part moving up and down to described discharge cock assembly, during paper foreign, the uper side surface of described switch gap adjusting part conflict in described lever block (32), make micro-pressure blind-mate between the lower surface of described lever block (32) and the switch contact of discharge cock assembly, the working face that described lateral paper guide (28) is adjacent with the defeated cardboard of defeated paper unit has inclined ramp, when paper surface has foreign matter, lateral paper guide (28) will drive lateral paper guide fixed bar (10) to rotate, lateral paper guide fixed bar (10) drives lever block (32) to rotate, lever block (32) is separated with switch contact, the top of described lever block (32) is also provided with described back-moving spring (27), equipment is under electrical equipment control, out of service, after paper containing foreign matter is taken out, under the effect of back-moving spring (27), the switch contact of discharge cock assembly and lever block (32) recover gapless rapidly, micro-pressure coordinates, electrical equipment control recovers normal condition, described discharge cock assembly comprises switch (22), switch enclosure (23) and switch mounting bracket (18), described switch (22) is arranged in switch enclosure (23), switch enclosure (23) is fixed on switch mounting bracket (18) by screw (21), described switch mounting bracket (18) is fixed in the side surfaces (A) of described left side fixed support plate (3) by screw (19) and pad (20), described switch gap adjusting part comprises spacing regulating block (15) and spacing adjustment screw (16, 17), described left side fixed support plate (3) is fixedly connected with described spacing regulating block (15) by bolt (4), spacing regulating block (15) is provided with screwed hole, described spacing adjustment screw (16, 17) be arranged in described screwed hole, safeties positioning supporting rod (13) is provided with between described left side fixed support plate (3) and right side fixed support plate (7), the two ends of described safeties positioning supporting rod (13) are respectively by screw (5, 9) locking positioning, described safeties positioning supporting rod (13) is stretched out one end that prolongation is positioned at lever block (32) and is provided with screwed hole, one adjustment screw (14) is connected in described screwed hole for regulating the pretightning force size of described back-moving spring (27), described lateral paper guide (28) is fixed on lateral paper guide fixed bar (10) by bolt-locking, and it is parallel with the defeated paper-board planar of defeated paper unit, lateral paper guide (28) is increase 0.3-0.5mm on the printed matter paper sheet thickness basis meeting technological requirement with the distance in the defeated cardboard face of defeated paper unit.
2. defeated paper according to claim 1 detects safeties, it is characterized in that, on the left side main support (1) that described left side fixed support plate (3) and right side fixed support plate (7) are arranged on defeated paper unit by bolt-locking and right side main support (2), at a distance of printing element input gripper place 1000mm.
3. defeated paper according to claim 2 detects safeties, it is characterized in that, defeated paper tape both sides on defeated cardboard and just install the stainless sheet steel of bar shaped to below safeties lateral paper guide (28), the thickness of the stainless sheet steel of described bar shaped is consistent with defeated tape thickness, width is consistent with lateral paper guide (28), and stainless sheet steel lures paper interface to be provided with slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163543.5A CN103950288B (en) | 2014-04-23 | 2014-04-23 | A kind of defeated paper detects safeties |
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| CN201410163543.5A CN103950288B (en) | 2014-04-23 | 2014-04-23 | A kind of defeated paper detects safeties |
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| CN103950288A CN103950288A (en) | 2014-07-30 |
| CN103950288B true CN103950288B (en) | 2016-03-09 |
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| US3411769A (en) * | 1967-02-01 | 1968-11-19 | Mabeg Maschb G M B H Nachf Hen | Sheet feeder for a sheet processing machine |
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