CN101319951B - Yarn tension detector and weft tension detecting device of injection weaving machine - Google Patents
Yarn tension detector and weft tension detecting device of injection weaving machine Download PDFInfo
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- CN101319951B CN101319951B CN2008101096186A CN200810109618A CN101319951B CN 101319951 B CN101319951 B CN 101319951B CN 2008101096186 A CN2008101096186 A CN 2008101096186A CN 200810109618 A CN200810109618 A CN 200810109618A CN 101319951 B CN101319951 B CN 101319951B
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Abstract
The invention relates to a yarn tension detector and a weft tension detecting device of a jet loom. The yarn tension detector is provided with a yarn guiding part, a first plate part, a second plate part and a strain detection element. The yarn guiding part guides the yarns along the yarn guiding direction. The first plate part and the second plate part support the yarn guiding part. The strain detection element detects the strain of the first plate part or the strain of the second plate part. The first plate part and the second plate part are connected and fixed on the yarn guiding part. The first plate part and the second plate part are mutually and oppositely arranged and configured mutually in parallel.
Description
Technical field
The present invention relates to have the yarn tension detecting device of strain test element and the weft tension pick-up unit of jet loom.
Background technology
Open in flat 1-92451 communique and the special table 2002-543297 communique the spy, disclose the yarn tension detecting device.The disclosed yarn tension detecting device of above-mentioned communique is called as the bikini tension detector with three bars, and the bar that is configured in central authorities in three bars works as the tonometry element of the tension force (yarn tension) that detects yarn.Be formed with groove on each bar, yarn is always passing through in groove in each groove with under each bar state of contact.Yarn is directed and crooked by contacting with three bars, detects because this bending is applied to load on the central bar as yarn tension.
Open in the flat 6-229855 communique the spy, disclose Yarn senser.This Yarn senser possesses the flat spring with yarn guide hole, and the elongation detecting sensor element that is made of piezoelectric membrane is installed on this flat spring.
Open in flat 1-92451 communique and the special table 2002-543297 communique in the disclosed yarn tension detecting device the spy, the yarn of being transferred is in three position bendings of slipping with three bars.Therefore, there is the energy be used for transferring yarn, is that the gas flow that air-jet loom is used for weft yarn is gone into latitude increases significantly, and the disconnected easily problem of yarn.In addition, in the handover (going into latitude) of fine yarn, there is the problem of the quality decline of fabric in the fluffing state of yam surface owing to above-mentioned slipping changes.
Disclosed above-mentioned Yarn senser can detect the variation of yarn tension in the Te Kaiping 6-229855 communique on the structure of sensor element, but has the problem of the size that can't measure yarn tension.In addition, the value that the output of above-mentioned Yarn senser is corresponding with the deflection deformation of flat spring, so even if there be the big or small identical of yarn tension, the yarn interior as if the yarn guide hole pass through the position difference, so the deflection difference of flat spring then is the different problem of output valve.
Summary of the invention
The objective of the invention is to reduce the crooked position of yarn and correctly detect yarn tension.
To achieve these goals, in the 1st mode of the present invention, provide a kind of yarn tension detecting device.This yarn tension detecting device has yarn guidance part, the 1st board, the 2nd board and strain test element.Above-mentioned yarn guidance part is along yarn channeling direction guiding yarn.Above-mentioned the 1st board and above-mentioned the 2nd board support above-mentioned yarn guidance part.Above-mentioned strain test element detects the strain of above-mentioned the 1st board or the strain of above-mentioned the 2nd board.Above-mentioned the 1st board and above-mentioned the 2nd board link and are fixed on the above-mentioned yarn guidance part.Above-mentioned the 1st board and above-mentioned the 2nd board be opposed mutually and configuration in parallel to each other on above-mentioned yarn channeling direction.
The weft tension pick-up unit of jet loom is provided in the 2nd mode of the present invention.Above-mentioned jet loom has weft yarn and stores device and nozzle.Above-mentioned weft yarn stores device and stores weft yarn.Said nozzle is incorporated latitude into and is sprayed fluid in order to store device extraction weft yarn from above-mentioned weft yarn.Above-mentioned weft tension pick-up unit stores the yarn tension detecting device that has above-mentioned the 1st mode between device and the said nozzle at above-mentioned weft yarn.
Description of drawings
Figure 1A is the stereographic map of air-jet loom with weft tension pick-up unit of the 1st embodiment of the present invention.
Figure 1B and Fig. 1 C are the stereographic maps of the yarn tension detecting device of Figure 1A.
Fig. 2 A is the vertical view of the air-jet loom of Figure 1A.
Fig. 2 B is that the part of the air-jet loom of Figure 1A is cut partial side view open.
Fig. 3 A is the partial cross sectional side elevation view of the yarn tension detecting device of Figure 1A.
Fig. 3 B is the partial cross sectional side elevation view of the yarn tension detecting device of Figure 1A.
Fig. 4 is the bridgt circuit with strain test element of the yarn tension detecting device that constitutes Figure 1A.
Fig. 5 is the curve map of the waveform of expression yarn tension.
Fig. 6 A is the side view of air-jet loom with weft tension pick-up unit of the 2nd embodiment of the present invention.
Fig. 6 B is the 6B-6B line cut-open view of Fig. 6 A.
Fig. 7 is the partial cross sectional side elevation view of air-jet loom with weft tension pick-up unit of the 3rd embodiment of the present invention.
Fig. 8 is the partial cross sectional side elevation view of air-jet loom with weft tension pick-up unit of the 4th embodiment of the present invention.
Fig. 9 is the partial cross sectional side elevation view of air-jet loom with weft tension pick-up unit of the 5th embodiment of the present invention.
Embodiment
Below, explanation has the double-colored air-jet loom of going into the latitude mode of the weft tension pick-up unit of the 1st embodiment of the present invention with reference to Figure 1A～Fig. 5.
Shown in Figure 1A, slay 10 is bearing on the rocking shaft 11 via lay sword 12.Rocking shaft 11 obtains driving force and back and forth rotates around the central axis of this rocking shaft 11 from loom CD-ROM drive motor (not shown). Main burner 13,14, reed 15 and a plurality of pilot jet 16 are installed on slay 10.Slay 10, main burner 13,14, reed 15 and a plurality of pilot jet 16 are center and along the fore-and-aft direction swing of loom by the reciprocal rotation of rocking shaft 11 and with rocking shaft 11.The accelerating tube 131,141 of main burner 13,14 points to the weft yarn path of navigation 152 on the front surface of the dent 151 that is formed on reed 15.
On the side frame (omitting diagram) of loom, be fixed with a pair of series nozzle 18,19.Weft yarn Y1, Y2 that the weft yarn that is wrapped in the package mode stores in the yarn package portion 221,231 of device 22,23 lead in the accelerating tube 182,192 via the yarn guide member 181,191 (illustrating in Fig. 2 B) of the tubular of the series nozzle 18,19 of correspondence.Weft yarn Y1, the Y2 that passes through in series nozzle 18,19 leads to respectively in the accelerating tube 131,141 of main burner 13,14.
Shown in Fig. 2 A, weft yarn Y1, the Y2 of weft yarn bobbin 20,21 leads to weft yarn and stores in the reel for yarn tubulature 222,232 of device 22,23.Weft yarn Y1, the Y2 of weft yarn bobbin 20,21 is wrapped in the yarn package portion 221,231 then by the rotation of reel for yarn tubulature 222,232 and be drawn out of from weft yarn bobbin 20,21.Under the state of card shotpin 321,331 that is driven by the excitation of solenoid 32,33 and demagnetization and yarn package portion 221,231 butts, stop from yarn package portion 221,231 and extract weft yarn Y1, Y2 out.Under the state that card shotpin 321,331 separates from yarn package portion 221,231, allow to extract weft yarn Y1, Y2 out from yarn package portion 221,231.Among Fig. 2 A, card shotpin 321 separates from yarn package portion 221, card shotpin 331 and yarn package portion 231 butts.
Be wrapped in that weft yarn Y1 in the yarn package portion 221 sprays by the gas from the accelerating tube 182 of series nozzle 18 and spray and be drawn out of, go into latitude in the opening of warp thread T from yarn package portion 221 from the gas of the accelerating tube 131 of main burner 13.Be wrapped in that weft yarn Y2 in the yarn package portion 231 sprays by the gas from the accelerating tube 192 of series nozzle 19 and spray and be drawn out of, go into latitude in the opening of warp thread T from yarn package portion 231 from the gas of the accelerating tube 141 of main burner 14.Going into weft yarn Y1, the Y2 of latitude in the opening of warp thread T sprays by the relaying of a plurality of pilot jets 16 and is drawn in the weft yarn path of navigation 152.Be drawn to weft yarn Y1, Y2 in the weft yarn path of navigation 152 beats up into fabric W by the beating-up of reed 15 forefront.
Shown in Figure 1A, on above-mentioned side frame, store at weft yarn yarn tension detecting device 24 (weft tension pick-up unit) is set between device 22 and the series nozzle 18, store at weft yarn and be provided with yarn tension detecting device 25 (weft tension pick-up unit) between device 23 and the series nozzle 19.Yarn tension detecting device 24 is a same structure with yarn tension detecting device 25.
Shown in Figure 1B and Fig. 1 C, on the supporting station 26 of each yarn tension detecting device 24,25, be provided with the support 27 of quadrangular shape integratedly in the mode of extending upward.On the top of each support 27, to be fixed with the yarn guiding tube 28 of ceramic to the mode of front surface 272 these supports 27 of perforation from the back side 271 of support 27.Weft yarn Y1, Y2 pass through in the inside 281 of the yarn guiding tube 28 of correspondence (hereinafter referred to as yarn by hole 281).The central axis of the yarn guiding tube 28 of yarn tension detecting device 24 is consistent with the central axis of yarn guide member 181 (illustrating in Fig. 2 B).The central axis of the yarn guiding tube 28 of yarn tension detecting device 25 is consistent with the central axis of yarn guide member 191 (illustrating in Fig. 2 B).
Be formed with through hole 29 with side 273 to the mode that the opposing party's side 274 connects these supports 27 in the bottom of each support 27 from a side of support 27.In the present embodiment, as through hole 29, form that the cross section is rectangle four lateral opening 29.
As shown in Figure 3A, the wall 30 between the back side 271 of four limits empty 29 and support 27 is a tabular, four lateral opening 29 and the front surface 272 of support 27 between wall 31 be tabular.The thickness of wall 30 is identical with the thickness of wall 31.Lateral opening 29 also lean on the position and yarn guiding tube 28 formations of the support 27 of upside to have the yarn guidance part of yarn by hole 281 than four, along yarn channeling direction R guiding weft yarn Y1, Y2.Above-mentioned yarn guidance part is fixedly supported upon on the wall 30,31.Below, wall 30 notes are made the 1st board 30, wall 31 notes are made the 2nd board 31.The 1st board 30 and the 2nd board 31 link with above-mentioned yarn guidance part to be fixed, and opposed mutually and configuration in parallel to each other on above-mentioned yarn channeling direction R.The 1st board 30 and the 2nd board 31 are also vertical with yarn channeling direction R.The cross section of the 1st board 30 and the 2nd board 31 forms rectangular four lateral opening 29 long limit.
On the back side 271 of each support 27, be fixed with the 1st strain test element 34 and the 2nd strain test element 35, on the front surface 272 of each support 27, be fixed with the 3rd strain test element 36 and the 4th strain test element 37.The 1st strain test element 34 is fixed on the position corresponding with four lateral opening 29 last side corner sections 291, detects the strain at the position of 1st board 30 corresponding with last side corner sections 291.The 2nd strain test element 35 is fixed on the position corresponding with four lateral opening 29 following side corner sections 292, detects the strain at the position of 1st board 30 corresponding with following side corner sections 292.The 3rd strain test element 36 is fixed on the position corresponding with four lateral opening 29 last side corner sections 293, detects the strain at the position of 2nd board 31 corresponding with last side corner sections 293.The 4th strain test element 37 is fixed on the position corresponding with four lateral opening 29 following side corner sections 294, detects the strain at the position of 2nd board 31 corresponding with following side corner sections 294.
As shown in Figure 4, the 1st strain test element the 34, the 2nd strain test element the 35, the 3rd strain test element 36 and the 4th strain test element 37 connect to constitute bridgt circuit 17.The terminal of each strain test element 34,35,36,37 is connected with not shown dynamic strain measuring appliance electrical equipment ground.The dynamic strain measuring appliance is exported the corresponding yarn tension detection signal of strain with each the 1st board 30 and each the 2nd board 31 based on the detection signal that obtains from each strain test element 34,35,36,37.
If the gas by series nozzle 18,19 sprays from 221, the 231 extraction weft yarn Y1 of yarn package portion, Y2, then shown in Fig. 2 B, the opening edge portion contact of each weft yarn Y1, Y2 and the yarn guiding tube 28 of corresponding yarn tension detecting device 24,25 and crooked at opening edge portion place.Crooked weft yarn Y1, Y2 passes through hole 281 by yarn.As Fig. 3 B shown in make 1st board 30 and 2nd board 31 that strains take place by the yarn tension of yarn by weft yarn Y1, the Y2 in hole 281 contacting under the crooked state with yarn guiding tube 28.In addition, in Fig. 3 B, illustrate the strain of the 1st board 30 and the 2nd board 31 turgidly.The mode generation strain that the 1st board 30 and the 2nd board 31 move to yarn guiding direction R abreast with yarn guiding tube 28.
The figure of one example of the variation of the tension force of weft yarn Y1, Y2 that the waveform E of Fig. 5 is expression when yarn package portion 221,231 extracts weft yarn Y1, Y2 out.After weft yarn ended effect release from the card that blocks shotpin 321,331, yarn tension rose pro rata, maintains roughly certain value then.Afterwards, yarn tension descends smoothly.If weft yarn Y1, Y2 are ended by card shotpin 321,331 cards once more, then yarn tension rises sharp.The rising of the yarn tension that this is rapid has a significant impact the quality of fabric.If the peak value of yarn tension surpasses certain value, the broken yarn line then takes place easily, fabric quality descends.Therefore, the weft tension of measuring in the latitude is extremely important for the work efficiency that guarantees fabric quality, raising loom.
Then, the advantage with above-mentioned embodiment is expressed as follows.
(1) only detect the tension force of each weft yarn Y1, Y2 under the state in a position bending of this contact with the contact of corresponding yarn guiding tube 28 (yarn guidance part) at each weft yarn Y1, Y2, thus can be enough with do not have 24,25 o'clock the latitude of going into of yarn tension detecting device weft yarn Y1, Y2 to be gone into latitude with the supply flow rate of the supply flow rate same degree of gas.In addition, since weft yarn Y1, Y2 only a position bending, so when yarn tension detects, can prevent the damage on the surface of weft yarn Y1, Y2.
(2) shown in double dot dash line among Fig. 3 B, pass through under the opening edge state of contact in hole 281 at weft yarn Y1, Y2 and yarn, as long as the tension force that is applied on weft yarn Y1, the Y2 is identical, then with the yarn of this weft yarn Y1, Y2 by the location independent on the opening edge in hole 281, a pair of board 30,31 is to be out of shape along the mode of the parallel mobile same amount of yarn channeling direction R.In addition because very little to distortion perpendicular to the board 30,31 of yarn channeling direction R, so can ignore since weft tension cause to perpendicular to load composition to the direction of the load composition of yarn channeling direction R.Therefore, can correctly detect weft tension.
(3) because the 1st board 30 and the 2nd board 31 and support 27 are integrally formed, so the making of yarn tension detecting device 24,25 becomes easy.When forming board 30,31 and support 27, might cause owing to these assembly failure correctly detecting yarn tension, but in the present embodiment that board 30,31 and support 27 is integrally formed, such problem can not occur on split ground.That is be favourable, with board 30,31 and support 27 integrally formed detections for correct yarn tension.
(4) form a pair of board 30,31 by form four lateral opening 29 on support 27, this structure makes the making of yarn tension detecting device 24,25 become easy.
(5) each the yarn tension detecting device 24,25 that uses four strain test elements, 34,35,36,37 formation bridgt circuits 17 to form considers it is preferred from the aspect that correct tension force detects.
(6) the 1st boards 30 and the 2nd board 31 form rectangular four lateral opening 29 long limit, and this structure is preferred considering aspect the strain that strengthens the 1st board 30 and the 2nd board 31.
Then, based on Fig. 6 A～Fig. 9 explanation and the different embodiment of above-mentioned the 1st embodiment.Below, only explanation detects with the tension force of weft yarn Y1 and goes into the relevant device of latitude, and the parts identical with the 1st embodiment are used identical Reference numeral.
Fig. 6 A and Fig. 6 B represent the weft tension pick-up unit of the 2nd embodiment.As shown in Figure 6A, store between device 22 and the yarn tension detecting device 24 at weft yarn and dispose yarn guide ring 38.Yarn guide ring 38 is bearing on the base station 40 via supporting station 39.Shown in Fig. 6 B, on base station 40, be formed with support slot 401, be formed with trapezoidal 391 in the bottom of supporting station 39.Trapezoidal 391 length direction along support slot 401 is embedded in the support slot 401 slidably.Screw thread is fixed with screw element 41 on trapezoidal 391.The top of screw element 41 can with the bottom butt of support slot 401, if threaded together part 41, then trapezoidal 391 (being supporting station 39) is fixed on the base station 40.If unscrew part 41, then supporting station 39 and yarn guide ring 38 can move along yarn channeling direction R (with reference to Fig. 3 A, B) with respect to yarn guiding tube 28.Its result, supporting station 39 and yarn guide ring 38 can be adjusted with respect to the position of yarn guiding tube 28.
The central axis 223 of yarn package portion 221 is consistent with the ring central axis 381 of yarn guide ring 38, and the central axis 381 of yarn guide ring 38 is consistent with the central axis 282 of the yarn guiding tube 28 of yarn tension detecting device 24.In addition, if represent the diameter of yarn package portion 221, represent from the top of yarn package portion 221 to represent the internal diameter of yarn guide ring 38 with G to the distance of yarn guiding tube 28 with L with D, represent the interval of yarn guide ring 38 and yarn guiding tube 28 with X, then be set with the relation of following formula (1).
D/L＝G/X......(1)
That is, the position of the supporting station 39 of the length direction of support slot 401 and yarn guide ring 38 is set as the formula (1) like that.On the circular conical surface that being positioned in interior week of yarn guide ring 38 become by following straight line V-arrangement, described straight line V is the straight line V that links the cardinal extremity inner peripheral 283 (inner peripheral of the end of yarn guide ring 38 sides) of the top outer peripheral edges 224 (outer peripheral edges of the end of yarn guide ring 38 sides) of yarn package portion 221 and yarn guiding tube 28, the straight line V that promptly represents with double dot dash line in Fig. 6 A.Straight line V is the bus of this circular conical surface, and the distance between the summit V1 of the circular conical surface that is become by the straight line V-arrangement and the top of yarn package portion 221 is L.
When heavy filling/pick line Y1 is gone into latitude, when the yarn package portion 221 that weft yarn stores device 22 extracts weft yarn Y1 out at weft yarn Y1 effect centrifugal force, its result, causing weft yarn Y1 to heave laterally easily is so-called looped weft (ballooning).Looped weft can hinder the correct detection of yarn tension, but the yarn guide ring 38 that is set in the position of satisfying formula (1) suppresses the looped weft of weft yarn Y1 and the weft yarn Y1 between yarn guide ring 38 and the yarn guiding tube 28 is maintained rectilinear form.Therefore, the bending angle of the weft yarn Y1 of yarn guiding tube 28 is always certain.Improve the correctness of the tension force detection of weft yarn Y1 thus.
When changing width of fabric, change the diameter of yarn package portion 221 or the distance between change yarn package portion 221 and the yarn tension detecting device 24 sometimes.Under these circumstances, the position of yarn guide ring 38 of length direction that can adjust support slot 401 is so that be maintained rectilinear form with the weft yarn Y1 between yarn guide ring 38 and the yarn guiding tube 28, even the bending angle of the weft yarn Y1 of the yarn guiding tube 28 of yarn tension detecting device 24 is certain.
The weft tension pick-up unit of the 3rd embodiment of the present invention then, is described.For the parts mark identical Reference numeral identical with the 2nd embodiment.
As shown in Figure 7, utilize the cover 42 of supporting station 39 supporting cone shapes, the yarn of the cone shape of weft yarn Y1 in cover 42 passes through in by path 421.The inner peripheral surface 422 of cover 42 circular conical surface shape suppresses the looped weft of weft yarn Y1, so the bending angle of the weft yarn Y1 at yarn guiding tube 28 places of yarn tension detecting device 24 is remained necessarily.Even if the diameter that changes yarn package portion 221, change between yarn package portion 221 and the yarn tension detecting device 24 apart from the time, the position of cover 42 of slot length direction that also can adjust support slot 401 is so that make the bending angle of weft yarn Y1 at yarn guiding tube 28 places of yarn tension detecting device 24 certain.
The Yarn tension detection apparatus of the 4th embodiment of the present invention then, is described according to Fig. 8.
The tube central axis 282 of the yarn guiding tube 28 of yarn tension detecting device 24 is consistent with the tube central axis 183 of the yarn guide member 181 of the tubular of series nozzle 18.The inner diameter d 1 of yarn guiding tube 28 (yarn of yarn guiding tube 28 is by the diameter in hole 281) is below the inner diameter d 2 (yarn of yarn guide member 181 is by the diameter in hole 184) of yarn guide member 181.
Make weft yarn Y1 not contact and contact reliably with the yarn guidance part (yarn guiding tube 28) of yarn tension detecting device 24 and crooked with being set at as the yarn of the yarn guiding tube 28 of the 1st yarn guidance part diameter d 1 by hole 281 as the yarn of the yarn guide member 181 of the 2nd yarn guidance part magnitude relationship by the diameter d 2 in hole 184 with yarn guide member 181.Therefore, can correctly detect the tension force of weft yarn Y1.
The weft tension pick-up unit of the 5th embodiment of the present invention then, is described according to Fig. 9.Use identical Reference numeral for the parts identical with the 2nd embodiment.
As shown in Figure 9, in the 5th embodiment, between yarn tension detecting device 24 and series nozzle 18, accompany thread brake 43.Thread brake 43 has yarn guided rings 44,45,46 and the brake rope of arranging 47 in upright arrangemently.Brake rope 47 be configured to utilize not shown rotating driving device (for example rotary solenoid) to switch to make weft yarn Y1 bent position and with the discontiguous position of weft yarn Y1.Brake rope 47 is making weft yarn Y1 bent position and the mobile of weft yarn Y1 is being braked near going into to be configured in when latitude finishes.Thread brake 43 suppress weft yarn Y1 tension force rapid rising and prevent that yarn from disconnecting.
The 5th embodiment has the advantage identical with the 2nd embodiment.
In addition, also can change present embodiment as follows.
Each yarn tension detecting device 24,25 also can have strain test element and the strain that only detects the strain of the 1st board 30 or only detect the 2nd board 31.
Also the 1st board 30 and the 2nd board 31 can be formed with support 27 splits ground.
Four lateral opening 29 cross sectional shape can be a parallelogram, perhaps also can change into circular hole with four lateral opening 29.When the cross sectional shape four lateral opening 29 was parallelogram, preferred the 1st board 30 and the 2nd board 31 became the long limit of parallelogram.
Also can on the 1st board 30 and the 2nd board 31, form recessed near the bight 291,292,293,294 four lateral opening 29 in the mode that provides the direction extension to four lateral opening 29.Like this, can make the strain of the 1st board 30 and the 2nd board 31 become big.
Also can in the air-jet loom of only a weft yarn being gone into latitude, use the present invention.
In the 4th embodiment, but also fixed cover 42 so that cover 42 position and can not change.
Also can store yarn tension detecting device 24,25 is set between the device 22,23 at weft yarn bobbin 20,21 and weft yarn.The tension force of the weft yarn in the time of like this, can detecting from 20,21 extractions of weft yarn bobbin.
In the jet loom that only by main burner weft yarn is penetrated in Warp opening not using series nozzle, also configurable yarn tension detecting device passes through weft yarn between device and the main burner and detects yarn tension so that store at weft yarn.
Yarn tension detecting device of the present invention also can be used for water-jet loom, rapier loom or projectile loom.
Yarn tension detecting device of the present invention also can be used for the detection of the tension force of sliver, yarn of spinning frame, false twisting machine etc. etc.
Yarn tension detecting device of the present invention also can be used for the detection of the rope tension of electric wire maker etc.
Claims (8)
1. a yarn tension detecting device is characterized in that,
Have: along the yarn guidance part of yarn channeling direction guiding yarn,
Support the 1st board of above-mentioned yarn guidance part and the 2nd board,
With the strain test element of the strain of strain that detects above-mentioned the 1st board or above-mentioned the 2nd board,
Above-mentioned the 1st board and above-mentioned the 2nd board link and are fixed on the above-mentioned yarn guidance part, and intersect and configuration in parallel to each other with above-mentioned yarn channeling direction.
2. yarn tension detecting device as claimed in claim 1 is characterized in that,
Above-mentioned yarn guidance part has makes yarn yarn guiding tube that passes through and the support that supports above-mentioned yarn guiding tube,
Above-mentioned the 1st board and above-mentioned the 2nd board and above-mentioned support are integrally formed.
3. yarn tension detecting device as claimed in claim 2 is characterized in that,
Above-mentioned the 1st board and above-mentioned the 2nd board form by form through hole on above-mentioned support,
Above-mentioned the 1st board and above-mentioned the 2nd board are across above-mentioned through hole and opposed.
4. yarn tension detecting device as claimed in claim 1, it is characterized in that, above-mentioned strain test element comprise the strain that detects above-mentioned the 1st board the 1st strain test element, detect the strain of above-mentioned the 1st board the 2nd strain test element, detect above-mentioned the 2nd board strain the 3rd strain test element and detect the 4th strain test element of the strain of above-mentioned the 2nd board
Above-mentioned the 1st～the 4th strain test element is to constitute the martingale of bridge diagram.
5. the weft tension pick-up unit of a jet loom is characterized in that,
Jet loom has the weft yarn that stores weft yarn and stores device and spray fluid and extract the nozzle that weft yarn is incorporated latitude into out to store device from this weft yarn,
Above-mentioned weft tension pick-up unit stores any described yarn tension detecting device that has aforesaid right requirement 1～4 between device and the said nozzle at above-mentioned weft yarn.
6. weft tension pick-up unit as claimed in claim 5 is characterized in that,
Above-mentioned weft yarn stores the yarn package portion that device has the package weft yarn,
Store between the device at above-mentioned yarn tension detecting device and above-mentioned weft yarn, the yarn guide ring is configured to and can adjusts the position along above-mentioned yarn channeling direction, and above-mentioned weft yarn passes through in above-mentioned yarn guide ring.
7. weft tension pick-up unit as claimed in claim 5 is characterized in that,
Above-mentioned weft yarn stores the yarn package portion that device has the package weft yarn,
Store between the device at above-mentioned yarn tension detecting device and above-mentioned weft yarn, have the cover of conical yarn by path and be configured to and can adjust the position along above-mentioned yarn channeling direction, above-mentioned weft yarn passes through in by path at above-mentioned yarn.
8. weft tension pick-up unit as claimed in claim 5 is characterized in that,
Above-mentioned weft yarn stores the yarn package portion that device has the package weft yarn,
Above-mentioned yarn guidance part is to have to make the 1st yarn that weft yarn passes through the 1st yarn guidance part by the hole,
In above-mentioned yarn channeling direction, than above-mentioned yarn tension detecting device more by downstream part, dispose to have and make the 2nd yarn that weft yarn passes through the 2nd yarn guidance part by the hole, above-mentioned the 2nd yarn guidance part is configured in before the nozzle,
Above-mentioned the 1st yarn passes through below the diameter in hole by the diameter in hole at above-mentioned the 2nd yarn.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007153055A JP4931069B2 (en) | 2007-06-08 | 2007-06-08 | Yarn tension detector and weft tension detector in jet loom |
| JP2007153055 | 2007-06-08 | ||
| JP2007-153055 | 2007-06-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101319951A CN101319951A (en) | 2008-12-10 |
| CN101319951B true CN101319951B (en) | 2011-09-28 |
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| CN2008101096186A Expired - Fee Related CN101319951B (en) | 2007-06-08 | 2008-06-06 | Yarn tension detector and weft tension detecting device of injection weaving machine |
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| JP (1) | JP4931069B2 (en) |
| CN (1) | CN101319951B (en) |
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|---|---|---|---|---|
| CN102359840B (en) * | 2011-06-24 | 2013-02-13 | 浙江理工大学 | Method for measuring weft tension in shed |
| CN105043880B (en) * | 2015-09-02 | 2017-11-17 | 盐城工学院 | A kind of yarn withdrawing device of adjustable pretension and its application |
| CN108088605B (en) * | 2017-12-27 | 2019-12-03 | 宁波雯泽纺织品有限公司 | Fiber force value cubing |
| CN110411639B (en) * | 2019-08-30 | 2024-04-09 | 浙江致信智控装备有限公司 | Tension sensor for yarn |
| CN113564794B (en) * | 2021-09-26 | 2021-11-23 | 南通美娲纺织品有限公司 | Yarn tension detection device on knitting machine |
| CN115112291B (en) * | 2022-05-20 | 2023-07-21 | 四川中能西控低碳动力装备有限公司 | Double-layer pipeline dynamic air pressure measuring device and method of engine gas supply system |
| CN116558708B (en) * | 2023-07-10 | 2023-09-08 | 常州赫尔绒纺织有限公司 | Air pressure detection device of air jet loom |
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| CN1270567A (en) * | 1995-09-20 | 2000-10-18 | Iro有限公司 | Device and method to control yarn tension and yarn feeder |
| CN1275522A (en) * | 1999-05-28 | 2000-12-06 | 东丽工程株式会社 | Device for testing yarn tension and yarn sensor |
| CN1406853A (en) * | 2001-09-10 | 2003-04-02 | 村田机械株式会社 | Yarn winding apparatus with tension detector |
| WO2004043839A1 (en) * | 2002-11-13 | 2004-05-27 | Murata Kikai Kabushiki Kaisha | Bobbin winding device, tension detection method, and tension detection device |
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| JPS5525372B2 (en) * | 1972-07-15 | 1980-07-05 | ||
| DE3942685A1 (en) * | 1989-12-22 | 1991-06-27 | Rieter Ag Maschf | METHOD FOR OBTAINING A THREAD TENSION SIGNAL AND THREAD SENSOR |
| US5136202A (en) * | 1990-08-31 | 1992-08-04 | Atochem North America, Inc | Material sensor |
| JP3268450B2 (en) * | 1999-10-20 | 2002-03-25 | クリーブランド モーション コントロールズ インコーポレーテッド | Cantilever transducer |
| JP4049705B2 (en) * | 2003-05-22 | 2008-02-20 | 株式会社豊田自動織機 | Weft insertion state detection device in water jet loom |
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2007
- 2007-06-08 JP JP2007153055A patent/JP4931069B2/en not_active Expired - Fee Related
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2008
- 2008-06-06 CN CN2008101096186A patent/CN101319951B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4677860A (en) * | 1985-02-27 | 1987-07-07 | Barmag Ag | Yarn tension sensor |
| US5113708A (en) * | 1990-11-21 | 1992-05-19 | Milliken Research Corporation | Apparatus to measure yarn tension |
| CN1270567A (en) * | 1995-09-20 | 2000-10-18 | Iro有限公司 | Device and method to control yarn tension and yarn feeder |
| CN1213642A (en) * | 1997-10-06 | 1999-04-14 | 村田机械株式会社 | Yarn tension detection apparatus |
| CN1275522A (en) * | 1999-05-28 | 2000-12-06 | 东丽工程株式会社 | Device for testing yarn tension and yarn sensor |
| CN1530310A (en) * | 1999-05-28 | 2004-09-22 | 东丽工程株式会社 | Apparatus for detecting tension of yarn and yarn sensor |
| CN1406853A (en) * | 2001-09-10 | 2003-04-02 | 村田机械株式会社 | Yarn winding apparatus with tension detector |
| WO2004043839A1 (en) * | 2002-11-13 | 2004-05-27 | Murata Kikai Kabushiki Kaisha | Bobbin winding device, tension detection method, and tension detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101319951A (en) | 2008-12-10 |
| JP2008304389A (en) | 2008-12-18 |
| JP4931069B2 (en) | 2012-05-16 |
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