WO2005080651A1 - ジェットルームにおける緯糸張力付与装置 - Google Patents
ジェットルームにおける緯糸張力付与装置 Download PDFInfo
- Publication number
- WO2005080651A1 WO2005080651A1 PCT/JP2005/002339 JP2005002339W WO2005080651A1 WO 2005080651 A1 WO2005080651 A1 WO 2005080651A1 JP 2005002339 W JP2005002339 W JP 2005002339W WO 2005080651 A1 WO2005080651 A1 WO 2005080651A1
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- WO
- WIPO (PCT)
- Prior art keywords
- passage
- weft
- capture
- catching
- nozzle
- Prior art date
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Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
- D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
- D03D47/3066—Control or handling of the weft at or after arrival
- D03D47/308—Stretching or holding the weft
Definitions
- the present invention relates to a jet loom in which wefts are inserted along a guide passage by the air injection action of a weft insertion nozzle, and in particular, the stretch nozzle force introduces the wefts into a capture passage by an air flow injected.
- the present invention relates to a jet lam including a weft yarn tensioning device for trapping.
- wefts are pulled out of the weft measurement and storage device by the air injection action of the weft inserting nozzle and inserted.
- Weft insertion and storage device Force Weft insertion is controlled so that weft insertion takes one weft. That is, the weft measurement / storage device can be switched between a state in which the weft can be drawn out and a state in which the weft can not be drawn out.
- weft insertion with a length of one weft insertion is performed.
- the flying weft threads are extended by several percent due to the air injection acting force of the weft inserting nozzle and the inertia force of the weft threads. Then, by the propagation action of the tension wave after that, thread vibration accompanied by loosening occurs. If the wefting is performed with a large amount of loosening of the weft yarn, the weft yarn tension differs on the left and right of the fabric, and the quality of the fabric is degraded.
- Patent documents 1 to 5 disclose a weft tension applying device for solving such a problem.
- the weft tension applying device applies an appropriate tension to the weft inserted weft at the time of beating.
- the weft tension applying devices disclosed in Patent Documents 1 and 2 are provided on the weft insertion end side on the sling of the loom. In these devices, air is blown into the pipe from the nozzle so as to cross the weft guide passage, and the tip of the weft flying along the guide passage is introduced into the pipe by the air blowing. This causes the weft end to become an air stream Therefore, it bends and is caught in the pipe, and tension is applied to the weft.
- the nozzle is disposed on the front side of the crucible, and the capture pipe is disposed on the rear side of the crucible.
- the air jetted from the nozzle is blown into the capture pipe across the weft guide passage on the front side of the weir, and the tip of the weft flying through the guide passage is introduced into the capture pipe by the air blowing.
- the end of the weft is bent by air flow and captured in the capture pipe, and tension is applied to the weft.
- an air injector is incorporated in a weft guide passage formed on the front side of the cocoon.
- the end of the weft thread that has traveled through the guide passage enters the air injector and is affected by the air flow.
- the devices disclosed in Patent Documents 3 and 4 can change the attachment position of the capture pipe in the direction in which the guide passage extends, so the problems that occur in the devices disclosed in Patent Documents 1 and 2 do not occur.
- a pair of insertion pins attached to the catching pipe is inserted between the weirs to form a slit-like gap.
- the bonding portion fixing the beaks at the upper and lower sides is deformed and loosened. If the bond deforms and loosens, the wing spacing can not be maintained at the regular spacing.
- weave streaks transvaginal streaks
- Patent Document 1 Japanese Examined Patent Publication Sho 57-17982
- Patent Document 2 Japanese Patent Application Laid-Open No. 10-204752
- Patent Document 3 Japanese Utility Model Application Publication No. 60-63580
- Patent Document 4 Japanese Utility Model Application Publication No. 2-115583
- Patent Document 5 Japanese Patent Publication No. 58-38544
- An object of the present invention is to provide a weft yarn tension applying device capable of coping with the change of the weave width without causing deterioration of the fabric quality, and capable of applying sufficient tension to the weft yarn.
- the present invention relates to a passage forming body for forming a catching passage by forming a catching passage in a jet room in which wefts are inserted along a guiding passage by the air injection action of a weft inserting nozzle.
- the invention provides a weft tension applying device for introducing a weft yarn into a catching passage by an air flow jetted from the stretching nozzle so as to catch the weft yarn in the catching passage.
- the passage forming body is disposed on the front side of the guide passage, and the disposition position can be changed along the guide passage. At least a portion of the capture passage extends in a direction intersecting the direction in which the guide passage extends.
- the tip of the weft introduced into the catching passage is caught in the catching passage in a bent shape.
- the configuration in which the weft end portion is bent and captured by the air flow gives sufficient tension to the weft. Since the passage forming body provided with the catching passage is on the front side of the guiding passage, it is not necessary to increase the distance between the weirs as in the conventional device for introducing the weft into the catching pipe through the weft between the adjacent weirs. Therefore, there is no risk of damage to the fabric due to the widening of the feathers. In addition, since the arrangement position of the passage forming body can be changed along the guide passage, it is possible to cope with the change of the weave width.
- FIG. 1 (a) is a perspective view showing a jet frame provided with a weft tension applying device according to a first embodiment of the present invention
- FIG. 1 (b) is a weft tension of FIG. The principal part expansion perspective view of an application device.
- FIG. 3 (a) is a side sectional view of the weft tension applying device of FIG. 1 (a)
- FIG. 3 (b) is a side sectional view of the main part of the weft tension applying device of FIG. 3 (a).
- FIG. 4 A flat sectional view showing a beating state of the jet room of FIG.
- FIG. 5 A graph showing the change in the frictional force between the weft and the passage forming body.
- FIG. 6 A perspective view of an essential part showing a weft tension applying device according to a second embodiment of the present invention.
- FIG. 7 A flat sectional view of the weft tension applying device of FIG.
- FIG. 8 (a) is a plan sectional view showing a weft tension applying device according to a third embodiment of the present invention
- FIG. 8 (b) is a side sectional view of the weft tension applying device shown in FIG.
- FIG. 9 A flat sectional view showing a weft tension applying device according to a fourth embodiment of the present invention.
- FIG. 10 A flat sectional view showing a weft tension applying device according to a fifth embodiment of the present invention.
- FIG. 11 is a side sectional view showing a weft tension applying device according to a sixth embodiment of the present invention.
- FIG. 12 A perspective view of an essential part showing a weft tension applying device according to a seventh embodiment of the present invention.
- FIG. 13 A plane sectional view of the weft tension applying device of FIG.
- FIG. 14 (a) is a side sectional view of the weft tension applying device of FIG. 12, and FIG. 14 (b) is a sectional view of the main part of the weft tension applying device of FIG.
- FIG. 15 (a) is a plan sectional view showing a weft tension applying device according to an eighth embodiment of the present invention
- FIG. 15 (b) is a side sectional view of the weft tension applying device of FIG. 15 (a).
- FIG. 16 is a perspective view of an essential part showing a weft tension applying device according to a ninth embodiment of the present invention
- FIG. 16 (b) is a sectional view of an essential part of the weft tension applying device of FIG. Figure.
- FIG. 17 (a) is a side sectional view showing a weft tension applying device according to a tenth embodiment of the present invention
- FIG. 17 (b) is a plan sectional view of the weft tension applying device of FIG. 17 (a).
- FIGS. 1 (a) -5 a first embodiment of the present invention will be described based on FIGS. 1 (a) -5.
- the jet loom with the weft thread tensioning device is provided with slay 11.
- the deformation fence 12 is erected and fixed on the sley 11.
- the lower portion of the deformation weir 12 is clamped and fixed by a weir member 35 in a groove 111 formed in the upper surface of the tray 11.
- a weft guide passage 121 is formed on the front surface of the modified weir 12.
- the weft Y ejected from the main nozzle for weft insertion not shown is a plurality of auxiliary weft insertion nozzles as weft insertion nozzles.
- the vehicle travels in the guide passage 121 by the relay injection action of the cylinder 13 (only one is shown in the figure).
- the weft yarn Y is drawn out from a winding-type weft measurement / storage device (not shown) by the air injection action of the weft insertion main nozzle.
- the first weft detector 14 is disposed between the ground warp T1 for forming the woven fabric W and the ear thread T2 for forming the abandoned ear W1, and the side of the ear thread T2 is provided.
- a second weft detector 15 is arranged on one side.
- the first weft yarn detector 14 and the second weft yarn detector 15 are both of the reflective photoelectric sensor type, and are mounted on the sled 11.
- the first weft detector 14 and the second weft detector 15 have detection regions in the guide passage 121, and the weft detectors 14, 15 detect the presence or absence of arrival of the weft Y in the guide passage 121. To detect.
- a weft catching block 16 is disposed between the ear thread T 2 and the second weft detector 15.
- the capture block 16 includes a block body 21 and a support leg 22 connected to the lower portion of the block body 21.
- the capture block 16 is attached to the sleigh 11.
- a sloping mounting surface 17 is formed on the front surface of the slay 11.
- a support groove 18 is formed on the mounting surface 17 so as to extend along the longitudinal direction of the slay 11.
- the support groove 18 includes a narrow portion 181 on the mounting surface 17 side and a wide portion 182 on the back side, and a step 183 is formed between the narrow portion 181 and the wide portion 182.
- the step 183 extends parallel to the mounting surface 17.
- the support legs 22 of the capture block 16 are joined to the mounting surface 17.
- a pair of bolts 19 (see FIG. 1 (b)) are threaded through the support legs 22. The tip of the threaded portion 191 of each bolt 19 protrudes from the support leg 22, and the lock nut 20 is screwed to the projecting end of the threaded portion 191.
- the hexagonal cylindrical head 192 of the bolt 19 is accommodated in the wide portion 182, and the maximum diameter of the head 192 is larger than the width of the wide portion 182. Accordingly, the corner of the hexagonal head 192 abuts against the inner wall surface of the wide portion 182, and the lock nut 20 can be tightened. By tightening the lock nut 20, the head 192 is pressed against the step 183, and the support leg 22 (ie, the capture block 16) is fixed to the tray 11.
- the weft inserting auxiliary nozzle 13 and the weft detectors 14, 15 are attached to the sled 11 by the same means as the means (bolt 19 and lock nut 20) for attaching the capture block 16 to the sled 11.
- a groove 23 is formed on the top surface 211 of the block body 21. The groove 23 is open to the front surface 213 of the block body 21.
- a pair of fitting holes 24, 25 are formed in the block body 21.
- the fitting hole 24 is formed so as to reach the groove 23 from the back surface 212 of the block body 21.
- the fitting hole 25 is penetrated so as to reach the groove 23 from the side surface 214 (side surface on the second weft detector 15 side) of the block body 21.
- the first weft catching pipe 26 is fitted in the fitting hole 24, and the second weft catching pipe 27 is fitted in the fitting hole 25.
- the passage 263 in the first capture pipe 26 extends perpendicularly to the direction in which the guide passage 121 extends.
- the protruding end portion of the first capture pipe 26 protrudes from the fitting hole 24 and is shaped to be obliquely cut, and the obliquely shaped inlet 261 of the first capture pipe 26 is a guide passage. It enters into 121 and faces the ear thread T2 side. That is, the introduction port 261 is inserted into the guide passage 121 so as to be continuous with the guide passage 121 in the direction opposite to the traveling direction of the weft Y.
- the projecting end of the second capture pipe 27 protruding from the fitting hole 25 is obliquely cut, and the obliquely shaped outlet 271 of the second capture pipe 27 is a guide passage. It has entered into 121.
- the outlet 271 of the second catching pipe 27 is directed downstream of the guiding passage 121 so as to intersect the guiding passage 121, and the outlet 271 is upstream of the second weft detector 15 with respect to the guiding passage 121. It is arranged.
- an air supply hole 28 is formed in the lower surface 210 of the block body 21, and an air pipe 29 is connected to the air supply hole 28.
- the air pipe 29 is connected to an air pressure supply source (not shown) via a solenoid on-off valve.
- a stretch nozzle 30 is formed on the side wall surface of the block main body 21 in which the groove 23 is formed.
- the stretch nozzle 30 communicates with the air supply hole 28, and pressure air supplied to the air supply hole 28 via the air pipe 29 is jetted from the stretch nozzle 30.
- the jet direction in the stretch nozzle 30 is directed to the inlet 272 of the second catching pipe 27, and the air jetted from the stretch nozzle 30 crosses the groove 23 and the inlet 272 of the second catching pipe 27. Blown into.
- a curved surface 216 is formed.
- a nozzle forming body 31 is disposed on the back side of the deformation weir 12.
- the support leg 311 of the nozzle former 31 is clamped and fixed by the wedge member 36 in the groove 111.
- the screw 37 passes through the wedge member 36 and is screwed into the threaded hole 112 at the bottom of the groove 111.
- the wedge member 36 fixes the support leg 311 in the groove 111 by tightening the screw 37.
- the screw holes 112 are arranged in a plurality of rows along the longitudinal direction of the groove 111, and selecting the screw holes 112 selects the arrangement position of the nozzle forming body 31 in the longitudinal direction of the groove 111. Can.
- an air supply hole 32 is formed on the back surface of the nozzle forming body 31, and an air pipe 33 is connected to the air supply hole 32.
- Air pipe 33 is not shown! /, Not shown via the solenoid valve !, connected to the air pressure source.
- a rubber buffer plate 34 is fixed to the front surface of the nozzle forming body 31 and twisted.
- a stretch nozzle 312 is formed on the front surface of the nozzle forming body 31, and a through hole 341 is formed on the buffer plate 34. The stretch nozzle 312 communicates with the air supply hole 32, and the pressure air supplied to the air supply hole 32 via the air pipe 33 is jetted from the stretch nozzle 312.
- the injection direction at the stretch nozzle 312 is directed to the inlet 261 of the first capture pipe 26.
- the air jetted from the stretch nozzle 312 passes between the through hole 341 and the adjacent weir blades 122 of the deformed weir 12 and is blown into the introduction port 261 of the first capture pipe 26 across the guide passage 121. .
- the air injection from the stretch nozzles 312 and 30 is started before the leading end of the weft Y reaches the introduction port 261 of the first catching pipe 26.
- the tip of the weft yarn Y flying in the guide passage 121 is blown into the first capture pipe 26 by the air injection from the stretch nozzle 312.
- the tip of the weft yarn Y blown into the first capture pipe 26 passes the outlet 262 of the first capture pipe 26 and exits into the groove 23.
- the tip of the weft Y that has exited into the groove 23 is blown into the inlet 272 of the second catching pipe 27 by air injection from the stretching nozzle 30.
- the passage 263 in the first catching pipe 26, the groove 23, and the passage 273 in the second catching pipe 27 constitute a weft catching passage 38, which extends along the guide passage 121. It has a portion extending in the direction intersecting with the direction.
- the capture block 16, the first capture pipe 26 and the second capture pipe 27 constitute a passage formation 39 that forms a capture passage 38.
- the first capture pipe 26 is a cylindrical portion in which the introduction port 261 of the capture path 38 extends in the direction opposite to the traveling direction of the weft yarn Y and is connected to the guide path 121 so as to enter the guide path 121.
- the groove 23, which constitutes a part of the capture passage 38, is provided in the middle of the capture passage 38 and functions as a branch flow passage opened to the outside of the passage forming body 39.
- the intersection of the jet direction of the stretch nozzle 312 and the jet direction of the stretch nozzle 30 is located at the junction of the catch passage 38 and the branch passage (groove 23).
- the inlet 272 functions as a diverting port of the capture passage located downstream of the connection between the branch flow passage (the groove 23) and the capture passage 38.
- the weft yarn Y is beaten in a state where the tip of the weft yarn Y is captured in a bent shape in the capturing passage 38.
- FIG. 4 shows a state in which the weft Y is beaten onto the woven cloth Wo.
- the extending direction of the passage 263 in the first capture pipe 26 intersects (orthogonalizes) the extending direction of the guide passage 121.
- the tip of the weft yarn Y introduced into the capture passage 38 extending in such a direction is captured in a bent shape by the air flow from the stretch nozzles 312, 30.
- the configuration in which the end of the weft yarn Y is bent and captured by the air flow provides sufficient tension to the weft yarn Y.
- the tip of the weft Y introduced into the catching passage 38 has an inner peripheral edge 264 (shown in FIGS. 2 and 4) of the inlet 261 of the first catching pipe 26 and an outlet 262 It bends sharply in contact with the inner peripheral edge 265 (shown in FIGS. 2 and 4) and the inner circumferential edge 274 (shown in FIGS. 2 and 4) of the inlet 272 of the second capture pipe 27.
- the inner peripheral edges 264, 265, 274 are bending portions provided on the wall surface forming the catching passage 38 for bending the weft.
- a configuration in which the tip of the weft Y in the catching passage 38 is sharply bent provides a good tensioning action on the weft Y. In both cases, the effect of suppressing the looseness of the weft Y by yarn vibration is brought about.
- a weft forming body 39 provided with a catching passage 38 for catching the tip of the weft in a bent shape is located on the front side of the guiding passage 121 (the front side of the deformation weir 12).
- the leading end of the weft thread which has traveled through the guide passage 121 is introduced into the introduction port 261 on the front side of the guide passage 121. Therefore, the conventional device for introducing the weft into the catching pipe through the weft between the adjacent weirs 122.
- the passage forming body 39 can be moved along the extending direction of the guide passage 121 with the lock nut 20 loosened. That is, the passage formation body 39 can change the disposition position along the guide passage 121. Therefore, even when the weave width of the woven fabric is changed, the passage forming body 39 can be installed at an appropriate position in the extending direction of the guide passage 121, and the change of the weave width can be easily dealt with.
- the inlet 261 inclined with respect to the direction in which the guide passage 121 extends is in the guide passage 121. That is, the introduction port 261 of the catching passage 38 is connected to the guiding passage 121 in the direction opposite to the traveling direction of the weft yarn (the opposite direction).
- a configuration in which such an inlet 261 is connected to the guide passage 121 is effective in enhancing the reliability of introducing the leading end of the weft thread flying in the guide passage 121 into the catching passage 38.
- the air flow injected from the stretch nozzle 30 intersects the air flow injected from the stretch nozzle 312. A portion of the tip of the weft yarn introduced into the passage 263 of the first catching pipe 26 is caught in the passage 273 of the second catching pipe 27 by the air flow injected from the stretch nozzle 30. That is, the air flow injected from the stretch nozzle 30 is injected from the stretch nozzle 312 to block the air flow flowing in the first capture pipe 26 and the groove 23, and the second end of the weft thread is formed. Blow into capture pipe 27. As a result, the tip of the weft yarn in the catching passage 38 is caught in a bent state in the catching passage 38.
- the configuration in which the weft yarn is bent in the catching passage 38 by the air flow jetted from the stretch nozzle 30 is preferable to apply sufficient tension to the weft yarn.
- the flow velocity of the air flow injected from the stretch nozzle 30 at the inlet 272 of the second capture pipe 27 is the same as that of the stretch nozzle 312 at the outlet 262 of the first capture pipe 26. About twice the flow velocity of the air flow is preferred.
- Curve E in the graph of FIG. 5 sets the air injection pressure at the stretch nozzle 30 to 0.3 MPa, and changes the air injection pressure at the stretch nozzle 312 in the range of 0-5. 0 MPa
- the change of the frictional force between the weft Y and the passage forming member 39 at the time of The graph of FIG. 5 shows that the friction force is maximum when the air injection pressure at the stretch nozzle 312 is zero. That is, the state in which air is injected only from the stretch nozzle 30 in a state in which the front end of the weft Y is inserted into the second capture pipe 27 has a frictional force compared to the state in which air is injected from both the stretch nozzles 312 and 30. Is advantageous in suppressing the loosening of the weft Y due to yarn vibration.
- the air jetted from the stretch nozzle 312 of the nozzle forming body 31 disposed on the back side of the deformation rod 12 is carried by the air jetted from the weft inserting auxiliary nozzle 13
- the tip of the weft yarn Y flying in the guide passage 121 is blown into the first catching pipe 26. That is, the air jetted from the stretch nozzle 312 is jetted from the weft inserting auxiliary nozzle 13 so as to block the air flowing in the guide passage 121, and the tip end portion of the weft Y is caught by the first catching pipe 26. Blow inside.
- the flow velocity of the air flow from the stretch nozzle 312 at the introduction port 261 of the first capture pipe 26 is the air flow injected from the weft inserting auxiliary nozzle 13 near the introduction port 261 of the first capture pipe 26. About five times the flow velocity of is preferred.
- the first weft yarn detector 14 and the second weft yarn detector 15 have a detection area in the guide passage 121, and the outlet 271 of the catching passage 38 intersects with the guide passage 121. It is directed to the downstream side of the guiding path 121 so as to be.
- the first weft detector for detecting whether or not the weft has reached a predetermined position, and the weft inserted in excess of a predetermined length.
- a second weft detector is generally used to detect if the force has fallen.
- the first weft detector 14 detects the arrival of the weft.
- the weft Y reaches the detection area of the second weft detector 15, the second weft is detected.
- the yarn detector 15 detects this weft arrival.
- the first weft detector 14 that detects whether the weft has reached a predetermined position or not, and the weft has been excessively inserted beyond the predetermined length.
- the second weft detector 15 that detects the force. The second weft detector 15 detects these even when the weft yarn Y is cut off or only the cover yarn covering the surface of the stretch yarn is pulled off.
- the configuration in which the outlet 271 of the catching passage 38 is directed to the downstream side of the guiding passage 121 so as to intersect the guiding passage 121 is the detection of the presence or absence of the weft Y in the guiding passage 121 by the second weft detector 15. Make it possible.
- the configuration in which the groove 23 is open on the top surface 211 and the front surface 213 has the effect of facilitating the attenuation of the flow velocity of the air flow jetted from the stretch nozzle 312.
- a fitting hole 40 is formed in the block body 21A of the passage forming member 39A.
- the first capture pipe 26A fitted in the fitting hole 40 crosses the guide passage 121 such that the direction in which the passage 263 extends is the downstream side of the guide passage 121.
- the obliquely shaped inlet 261 A of the first capture pipe 26 A faces the stretch nozzle 312.
- a fitting hole 41 is formed in the block body 21A so as to extend from the groove 23 toward the side surface 214, and the second capturing pipe 27A is fitted in the fitting hole 41.
- the jet direction in the stretch nozzle 30 is directed to the inlet 272A of the second capture pipe 27A, and the air jetted from the stretch nozzle 30 crosses the groove 23 to the inlet 272A of the second capture pipe 27A. Be blown.
- a groove 42 is formed on the top surface 211 of the block body 21A.
- the groove 42 is open to the side 214.
- the groove 42 is in series with the fitting hole 41.
- a fitting hole 43 is formed in the block body 21A so as to extend from the back surface 212 toward the groove 42, and a third capture pipe 44 is fitted in the fitting hole 43.
- a stretch nozzle 45 is formed on the side wall of the block body 21 A forming the groove 42. The injection direction at the stretch nozzle 45 is directed to the inlet 441 of the third capture pipe 44.
- the stretch nozzle 45 leads to the air supply hole 46, and the air supply hole 46 is connected to the pressure air supply source, not shown via the air pipe 47 shown in FIG. It is done. Air jetted from the stretch nozzle 45 is blown across the groove 42 into the inlet 441 of the third capture pipe 44.
- the portion of the third capture pipe 44 in the block body 21A is parallel to the first capture pipe 26A, and the end of the third capture pipe 44 crosses the guide passage 121 at a shallow angle. It is directed to the downstream side of the guiding passage 121 so as to.
- the outlet 442 of the third catch pipe 44 is upstream of the second weft detector 15 with respect to the guiding channel 121.
- the passage 443 of the second and third catching pipes 44 constitutes a catching passage 48, and the catching passage 48 has a portion extending in a direction intersecting with the direction in which the guide passage 121 extends.
- the tip of the weft yarn Y blown into the first capture pipe 26A by the air flow from the stretch nozzle 312 is blown into the second capture pipe 27A by the air flow from the stretch nozzle 30.
- the tip of the weft yarn Y blown into the second catching pipe 27 A is blown into the third catching pipe 44 by the air flow from the stretching nozzle 45.
- the tip of the weft yarn Y captured in the capture passage 48 reaches near the end of the third capture pipe 44
- the same effects as in the items (11), (14), (16), and (1-8) in the first embodiment can be obtained.
- the capture passage 48 having a greater number of bends than the capture passage 38 in the first embodiment more effectively suppresses the yarn vibration generated in the weft Y and further enhances the tensioning performance.
- the improvement of the tensioning performance contributes to the reduction of air consumption for capturing weft yarn Y.
- the configuration in which the first capture pipe 26A is oblique to the guide passage 121 is the bending angle of the weft at the inner peripheral edge of the inlet 261A of the first capture pipe 26A, and the first capture pie.
- the bending angle of the weft at the inner peripheral edge of the outlet 262A of the loop 26A is preferable in view of the following.
- the configuration in which the groove 42 of the block body 21A is open on the upper surface 211 and the side surface 214 has the effect of making it easy to attenuate the flow velocity of the air flow injected from the stretch nozzle 30.
- FIGS. 8 (a) and 8 (b) a third embodiment of FIGS. 8 (a) and 8 (b) will be described.
- the same components as those in the first embodiment are denoted by the same reference numerals.
- the first capture pipe 26B is fixed to the block main body 21B of the passage forming member 39B.
- the introduction port 261 B of the first catching pipe 26 B enters the guide passage 121 and faces in the opposite direction (opposing direction) to the traveling direction of the weft Y.
- the outlet 271B of the second catching pipe 27B fixed to the block body 21B enters the guide passage 121 and faces the traveling direction of the weft yarn Y.
- the stretch nozzle 30 is directed to the inlet 272B of the second capture pipe 27B.
- the passage 263 of the first catching pipe 26 B, the groove 23 and the passage 27 3 of the second catching pipe 27 B constitute a catching passage 49, which intersects the extending direction of the guiding passage 121. It has a portion extending in the opposite direction.
- the tip of the weft yarn Y flying in the guiding passage 121 is blown into the first catching pipe 26B by the air flow from the weft inserting auxiliary nozzle 13 (see FIG. 1 (a)).
- the tip of the weft yarn Y blown into the first catching pipe 26 B is blown into the second catching pipe 27 B by the air flow from the stretch nozzle 30.
- An elastic ring 50 made of rubber as an inertia material is fitted to a first capture pipe 26B as a tubular portion forming the introduction port 261B of the capture passage 49. Further, an elastic ring 51 made of rubber as a inertia material is fitted to the second catching pipe 27B.
- the elastic rings 50, 51 are in contact with the wall surface of the weir 122 that forms the guide passage 121.
- the same effects as in the items (11), (13)-(16), (1-9) and (111) in the first embodiment can be obtained.
- the nozzle forming body 31 in the first embodiment is not necessary, the configuration is simplified.
- the elastic ring 50 closes the space between the outer peripheral surface of the first capture pipe 26B and the wall surface of the weir 122. Therefore, the introduction of the front end of the weft Y into the first catching pipe 26B is ensured. Since the force is also prevented from direct contact between the beard blade 122 and the first capture pipe 26B by the elastic ring 50, wear and damage due to the vibration of the beak blade 122 during the beating operation is avoided. Avoidance of wear and tear is also obtained for the elastic ring 51.
- a capture block 16C constituting a passage forming body is assembled to the first weft yarn detector 14. Since the first weft yarn detector 14 is disposed on the outer side of the ear thread T2, the distance between the ground warp T1 and the ear thread T2 can be narrower than in the case of the first embodiment. This contributes to reducing the weft consumption by shortening the weft insertion length for one weft insertion.
- the second catching pipe 27D fixed to the block body 21D constituting the passage forming member 39D is orthogonal to the groove 23, and the second weft detector
- the mounting orientation of 15 is the reverse of that in the first embodiment.
- the detection area of the second weft detector 15 The area is set on the extension of the passage 273 of the second capture pipe 27D.
- the passage 263 of the first catching pipe 26, the groove 23, and the passage 273 of the second catching pipe 27D constitute a catching passage 52.
- the second catching pipe 27E fixed to the block main body 21E constituting the passage forming body 39E is orthogonal to the passage 53 opened to the front surface 213 and directed upward. doing.
- the jet direction in the stretch nozzle 30E formed on the bottom of the passage 53 is directed to the inlet 272E of the second capture pipe 27E.
- the tip of the weft yarn Y introduced into the first catching pipe 26 is blown into the second catching pipe 27E by the air flow of the stretch nozzle 30E.
- the passage 263 of the first catching pipe 26, the passage 53, and the passage 273 of the second catching pipe 27E constitute a catching passage 54.
- FIG. 12-FIG. 14 (b) Next, a seventh embodiment of FIG. 12-FIG. 14 (b) will be described.
- the same reference numerals are used for the same components as in the first embodiment.
- a capture block 55 is tightened and joined using a pair of bolts 19 and a lock nut 20.
- the capture block 55 is formed with a pair of fitting holes 56, 57.
- the fitting hole 56 is formed to extend from the upper surface 551 to the lower surface 552 of the capture block 55.
- the fitting hole 57 is penetrated so as to reach the fitting hole 56 from the side surface 553 (the side surface on the second weft detector 15 side) of the catching block 55.
- a first catching pipe 58 is fitted and fixed in the fitting hole 56, and a second catching pipe 59 is fitted and fixed in the fitting hole 57.
- the first catching pipe 58 is inserted halfway into the fitting hole 56.
- the protrusion 5 81 of the first capture pipe 58 protruding from the fitting hole 56 is curved.
- the end of the projecting portion 581 forms an inlet 582 which is obliquely cut.
- the introduction port 582 enters the guide passage 121 and faces the ear thread T2 side. That is, the introduction port 582 is inserted into the guiding passage 121 so as to be continuous with the guiding passage 121 with a direction V opposite to the traveling direction of the weft Y.
- the passage in the first capture pipe 58 is directed from the inside of the guide passage 121 to the front of the guide passage 121 (the front of the deformation rod 12) and the forward force passage 583 and the front of the guide passage 121 (the front of the deformation rod 12) Head to And a downward passage 584.
- the passage 583 extends in a direction perpendicular to the direction in which the guide passage 121 extends.
- the projecting end of the second capture pipe 59 protruding from the fitting hole 57 forms an outlet 591 having an obliquely cut shape.
- the outlet 591 is in the guide passage 121.
- the outlet 591 is directed downstream of the guiding channel 121 so as to intersect the guiding channel 121, and the outlet 591 is arranged upstream of the second weft detector 15 with respect to the guiding channel 121.
- an air supply hole 60 is formed in the side surface 554 of the capture block 55, and an air pipe 29 is connected to the air supply hole 60.
- the air pipe 29 is connected to an air pressure supply source (not shown) via a solenoid on-off valve.
- a stretch nozzle 61 is formed on the peripheral wall surface of the capture block 55 forming the fitting hole 56.
- the stretch nozzle 61 communicates with the air supply hole 60, and the pressure air supplied to the air supply hole 60 via the air pipe 29 is jetted from the stretch nozzle 61.
- the jet direction at the stretch nozzle 61 is directed to the inlet 592 of the second capture pipe 59, and the air jetted from the stretch nozzle 61 crosses the fitting hole 56 and the air of the second capture pipe 59. It is blown into the introduction port 592.
- Air injection from the stretch nozzles 312, 61 is started before the leading end of the weft Y reaches the introduction port 582 of the first catching pipe 58.
- the tip of the weft yarn Y flying in the guide passage 121 is blown into the first catching pipe 58 by the air injection from the stretch nozzle 312.
- the tip of the weft yarn Y blown into the first catching pipe 58 passes through the outlet 585 of the first catching pipe 58 and exits into the fitting hole 56.
- the leading end of the weft Y passing through the outlet 585 to the fitting hole 56 is directed to the intersection of the fitting hole 56 and the fitting hole 57.
- the portion of the fitting hole 56 below the intersection of the fitting hole 56 and the fitting hole 57 will be referred to as a branch flow passage 561.
- the leading end of the weft yarn Y that has reached the intersection between the fitting hole 56 and the fitting hole 57 is blown into the introduction port 592 of the second catching pipe 59 by the air injection from the stretch nozzle 61.
- the leading end of the weft Y reaches the middle of the second catching pipe 59, the drawing of the weft of the weft measuring device force is prevented.
- the passage 583 and the descending passage 584 in the first catching pipe 58 and the passage 593 in the second catching pipe 59 constitute a catching passage 62, and the catching passage 62 is a part of the guiding passage 121. It has a portion extending in a direction intersecting the extending direction.
- the capturing passage 62 includes, in its part, a descending passage 584 which is directed downward from the front side of the guiding passage 121.
- the outlet 562 (the outlet of the fitting hole 56) of the branch passage 561 connected to the end of the descending passage 584 is opened only downward. In other words, the outlet 562 of the branch flow channel 561 is all visible from the bottom in the vertical direction.
- the inlet 592 functions as a diverting port of the catching passage located downstream of the connection between the branch passage 561 and the descending passage 584.
- the capture block 55, the first capture pipe 58 and the second capture pipe 59 constitute a passage forming body 63 which forms a capture passage 62.
- the first catching pipe 58 is a tubular portion in which the introduction passage 582 of the catching passage 62 is connected to the guiding passage 121 so as to face the direction opposite to the advancing direction of the weft Y and enter the guiding passage 121.
- the tip of the weft yarn Y introduced into the catching passage 62 has an inner circumferential edge 586 (shown in FIG. 13) of the inlet 582 of the first catching pipe 58 and an inner circumferential edge 587 of the outlet 585 (FIG. 14). It bends sharply in contact with the inner peripheral edge 594 (shown in FIG. 14 (b)) of the introduction port 592 of the second capture pipe 59 (shown in (b)).
- the weft yarn Y is beaten in a state where the front end of the weft yarn Y is captured in a bent shape in the capture passage 62.
- Pre-Woven Guide passage 1 to avoid interference between the temple device (not shown) provided to prevent weaving of the woven fabric W near the Wo and the passage forming body at the time of beating. It is assumed that the passage forming body is disposed on the downstream side of the arrangement position of the temple device in the extending direction (laminate direction) 21. In this case, the length of the weft to be inserted in this case is greater than that in the case where the passage forming body is disposed near the same position as the arrangement position of the temple device in the extending direction (lamination direction) of the passage 121. I will be long. This is the use of weft Unfavorable with regard to dose.
- the capture passage 62 is a part of the force passage 583 forward of the guide passage 121 from the inlet port 582 which enters into the guide passage 121, and the downward force decrease passage 584 following the passage 583.
- the capture passage 62 has a downward force shape immediately after going slightly forward of the guide passage 121.
- the upper portion of the passage forming body 63 having the capturing passage 62 having such a shape, for example, has a projecting amount from the guiding passage 121 to the front as compared with the upper portion (block body 21) of the passage forming body 39 in the first embodiment. It can be reduced. This is effective in avoiding interference with the temple device.
- the weft yarn tip Ye (shown in FIG. 13) constituting the woven waste ear W1 (shown in FIG. 13) is a weft yarn yarn tip caught in the catching passage in the passage forming body at the time of tapping. It is. At the time of the strike, the passage forming body approaches the weft tip Ye near the pre-woven Wo, but at this time, if the weft tip Ye constituting the scrapped ear W1 woven into the capture passage 62 Do. Then, the end Ye of the weft thread which has entered the catching passage 62 prevents the proper tension from being applied to the original weft yarn to be caught by the catching passage in the passage formation.
- the branch flow passage 561 connected to the end of the descending passage 584 plays the same role as the groove 23 in the first embodiment.
- the outlet 562 of the branch flow channel 561 is provided on the lower surface 552 of the capture block 55. That is, the outlet 562 of the branch passage 561 opened to the outside of the passage forming member 63 is opened only downward, and the front end portion Ye of the weft constituting the discard ear W1 is branched from the outlet 562 to the branch passage 561 It does not go inside.
- the configuration in which the outlet 562 of the branch flow channel 561 is opened downward only prevents the end portion Ye of the weft constituting the discard ear W1 from entering the branch flow channel 561.
- FIGS. 15 (a) and 15 (b) will be described.
- the same reference numerals as in the seventh embodiment of FIGS. 12 to 14 (b) and the third embodiment of FIGS. 8 (a) and 8 (b) denote the same components.
- a first capture pipe 58A is fixed to a capture block 55 constituting the passage forming body 63A.
- the introduction port 582A of the first catching pipe 58A enters the guide passage 121 and faces in the direction opposite to the traveling direction of the weft Y (opposite direction).
- the passage 583A of the first catching pipe 58A, the descending passage 584, and the passage 593 of the second catching pipe 59 constitute a catching passage 64, and the catching passage 64 has a direction in which the guide passage 121 extends.
- a capture passage 64 is formed having portions extending in the cross direction.
- the leading end of the weft yarn Y flying in the guide passage 121 is blown into the first catching pipe 58A by an alpha stream from the weft inserting auxiliary nozzle 13 (see FIG. 1 (a)).
- the tip of the weft yarn Y blown into the first catching pipe 58 A is blown into the second catching pipe 59 by the air flow from the stretch nozzle 61.
- An elastic ring 50 made of rubber as an inertia material is fitted to a first capture pipe 58A as a tubular portion forming the introduction port 582A of the capture passage 64.
- the elastic ring 50 is in contact with the wall of the wing 122 that forms the guide passage 121.
- the eighth embodiment can obtain the same effects as those of the third and seventh embodiments.
- FIGS. 16 (a) and 16 (b) Next, a ninth embodiment of FIGS. 16 (a) and 16 (b) will be described.
- the same reference numerals are used for the same components as those in the seventh embodiment of FIGS.
- a fitting hole 56 is formed through the capturing block 55B of the passage forming member 63B, and a capturing pipe 58B is fixedly fitted in the fitting hole 56.
- the capture pipe 58B passes through the fitting hole 56, and the outlet 585B of the capture pipe 58B opens downward at the outside of the capture block 55B.
- the passage in the capture pipe 58B is directed from the inside of the guide passage 121 toward the front of the guide passage 121 (the front of the deformed rod 12) and the forward passage 583B and the front of the guide passage 121 (the front of the deformed rod 12). It is a catching passage 65 composed of a downward force downward passage 584B.
- the capture passage 65 is open only below the passage former 63B. That is, the exit 585B of the capture passage 65 is all visible from the top and bottom as viewed from the bottom.
- the passage 583B extends in a direction perpendicular to the direction in which the guide passage 121 extends, like the passage 583 in the seventh embodiment.
- an air supply hole 60 is formed in the side surface 554 of the capture block 55B, and an air pipe 29 is connected to the air supply hole 60.
- Air pipe 29 is not shown! /, Not shown via the solenoid valve !, connected to the air pressure source.
- a stretch nozzle 61B is formed on the peripheral wall surface of the capture block 55B forming the fitting hole 56 and the peripheral wall of the capture pipe 58B. The stretch nozzle 61B passes through the air supply hole 60, and the pressure air supplied to the air supply hole 60 via the air pipe 29 is jetted from the stretch nozzle 61B.
- the jet direction in the stretch nozzle 61B is directed to the outlet 585B side of the capture pipe 58B, and the air injected from the stretch nozzle 61B is directed downward in the falling passage 584B in the capture pipe 58B.
- the second weft detector 15 has a detection area in the extension area of the outlet 585B of the capture pipe 58B, and the weft detector 15 has presence or absence of arrival of the weft Y in the extension area of the outlet 585B. To detect When the weft yarn Y is excessively inserted or the weft yarn is cut, the weft yarn Y passes through the detection area of the second weft yarn detector 15.
- FIG. 17 (a) and FIG. 17 (b) a tenth embodiment of FIG. 17 (a) and FIG. 17 (b) will be described.
- the same reference numerals are used for the same components as in the first embodiment.
- a branch flow passage 66 is formed in the block body 21 constituting the capturing block 16 so as to reach the fitting holes 24, 25 from the lower surface 210.
- the branch flow path 66 which constitutes the capture passage 38F together with the passages 263 and 273 is open to the lower surface 210 of the capture block 16 (that is, the lower side of the passage form 39F) which constitutes the passage form 39F.
- the branch flow path 66 plays the same role as the groove 23 in the first embodiment.
- the outlet 651 of the branch flow passage 66 opened to the outside of the passage formation body 39F is opened only downward. That is, the outlet 651 of the branch flow path 66 is all visible from the top and bottom and from the bottom.
- the end Ye of the weft constituting the forearm W1 does not enter the branch flow path 66 from the outlet 651.
- the configuration in which the outlet 651 of the branch flow passage 66 is opened only downward prevents the end portion Ye of the weft yarn constituting the discard ear W1 from entering the branch flow passage 66.
- the air injection in the stretch nozzles 312 and 30 may be stopped.
- the same effect as the item (1-7) in the first embodiment can be obtained.
- a passage opened only to the front surface 213 may be employed.
- a passage that opens only to the side surface 214 may be employed.
- first capture pipe 26 and the second capture pipe 27 may be integrally formed with the block body 21.
- first capture pipe 26A and the second capture pipe 27A may be integrally formed with the block body 21A!
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05719191A EP1722019B1 (en) | 2004-02-19 | 2005-02-16 | Weft tension device for jet looms |
CN200580005346XA CN1922349B (zh) | 2004-02-19 | 2005-02-16 | 喷气织机中的纬线张力赋予装置 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004043063 | 2004-02-19 | ||
JP2004-043063 | 2004-02-19 | ||
JP2004210629A JP4410048B2 (ja) | 2004-02-19 | 2004-07-16 | ジェットルームにおける緯糸張力付与装置 |
JP2004-210629 | 2004-07-16 |
Publications (1)
Publication Number | Publication Date |
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WO2005080651A1 true WO2005080651A1 (ja) | 2005-09-01 |
Family
ID=34889336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/002339 WO2005080651A1 (ja) | 2004-02-19 | 2005-02-16 | ジェットルームにおける緯糸張力付与装置 |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP2495360B1 (ja) |
JP (1) | JP4410048B2 (ja) |
CN (1) | CN1922349B (ja) |
WO (1) | WO2005080651A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1897981A1 (de) * | 2006-09-07 | 2008-03-12 | Sultex AG | Verfahren und Streckvorrichtung zum Halten eines Schussfadens |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1017893A5 (nl) * | 2007-12-10 | 2009-10-06 | Te Strake Textile Bv | Strekinrichting voor het strekken van een inslagdraad. |
KR101031270B1 (ko) | 2009-02-26 | 2011-04-29 | (재)한국섬유기계연구소 | 에어제트 직기의 얀 스트레치 시스템 |
JP5365268B2 (ja) * | 2009-03-06 | 2013-12-11 | 株式会社豊田自動織機 | ジェットルームにおける緯糸検出装置 |
JP5369915B2 (ja) * | 2009-06-11 | 2013-12-18 | 株式会社豊田自動織機 | エアジェット織機における緯糸張力付与装置 |
BE1019614A3 (nl) | 2009-07-01 | 2012-09-04 | Picanol | Inrichting en werkwijze voor het vangen en strekken van inslagdraden bij weefmachines. |
EP2348144A1 (en) * | 2010-01-26 | 2011-07-27 | ITEMA (Switzerland) Ltd. | Pneumatic stretching device of the weft thread for air-jet weaving looms, with a weft deflecting head arranged inside the launch channel of the reed |
JP6119715B2 (ja) * | 2014-10-27 | 2017-04-26 | 株式会社豊田自動織機 | エアジェット織機における緯糸張力付与装置 |
JP2022014545A (ja) * | 2020-07-07 | 2022-01-20 | 株式会社豊田自動織機 | 緯糸張力付与装置 |
JP2023156763A (ja) * | 2022-04-13 | 2023-10-25 | 株式会社豊田自動織機 | エアジェット織機の緯糸張力付与装置 |
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JPS6063580U (ja) * | 1983-10-04 | 1985-05-04 | 津田駒工業株式会社 | 無杼織機における緯糸緊張装置 |
JPS62170785U (ja) * | 1986-04-15 | 1987-10-29 | ||
JPH02115583U (ja) * | 1989-02-28 | 1990-09-17 | ||
JPH06257037A (ja) * | 1992-07-03 | 1994-09-13 | Picanol Nv | 横糸監視装置付織機 |
JPH07279001A (ja) * | 1994-03-31 | 1995-10-24 | Toyota Autom Loom Works Ltd | ジェットルームにおける緯糸張力付与装置 |
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GB1365903A (en) * | 1970-08-07 | 1974-09-04 | Teijin Ltd | Method of and apparatus for controlling weft tension in a jet loom |
NL7206367A (ja) | 1972-05-10 | 1973-11-13 | ||
NL7605882A (nl) | 1976-05-31 | 1977-12-02 | Rueti Te Strake Bv | Weefmachine. |
JPS61147287U (ja) * | 1985-02-28 | 1986-09-11 | ||
JPS61147286U (ja) * | 1985-03-01 | 1986-09-11 | ||
JP4057086B2 (ja) | 1997-01-14 | 2008-03-05 | 株式会社豊田自動織機 | ジェットルームにおける緯糸張力付与装置 |
-
2004
- 2004-07-16 JP JP2004210629A patent/JP4410048B2/ja active Active
-
2005
- 2005-02-16 WO PCT/JP2005/002339 patent/WO2005080651A1/ja active Application Filing
- 2005-02-16 EP EP12004120.7A patent/EP2495360B1/en active Active
- 2005-02-16 EP EP05719191A patent/EP1722019B1/en active Active
- 2005-02-16 CN CN200580005346XA patent/CN1922349B/zh active Active
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JPS6063580U (ja) * | 1983-10-04 | 1985-05-04 | 津田駒工業株式会社 | 無杼織機における緯糸緊張装置 |
JPS62170785U (ja) * | 1986-04-15 | 1987-10-29 | ||
JPH02115583U (ja) * | 1989-02-28 | 1990-09-17 | ||
JPH06257037A (ja) * | 1992-07-03 | 1994-09-13 | Picanol Nv | 横糸監視装置付織機 |
JPH07279001A (ja) * | 1994-03-31 | 1995-10-24 | Toyota Autom Loom Works Ltd | ジェットルームにおける緯糸張力付与装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1897981A1 (de) * | 2006-09-07 | 2008-03-12 | Sultex AG | Verfahren und Streckvorrichtung zum Halten eines Schussfadens |
Also Published As
Publication number | Publication date |
---|---|
EP1722019A4 (en) | 2009-08-12 |
EP2495360B1 (en) | 2013-07-24 |
EP1722019B1 (en) | 2012-08-01 |
EP1722019A1 (en) | 2006-11-15 |
CN1922349A (zh) | 2007-02-28 |
CN1922349B (zh) | 2011-11-16 |
JP4410048B2 (ja) | 2010-02-03 |
EP2495360A1 (en) | 2012-09-05 |
JP2005264416A (ja) | 2005-09-29 |
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