WO2003031705A1

WO2003031705A1 - Method and device for storing weft end

Info

Publication number: WO2003031705A1
Application number: PCT/JP2002/010297
Authority: WO
Inventors: Keiichi Myogi
Original assignee: Tsudakoma Kogyo Kabushiki Kaisha
Priority date: 2001-10-03
Filing date: 2002-10-02
Publication date: 2003-04-17
Also published as: TW593818B; US20040025958A1; KR20040015031A; JP2003113559A; CN1483094A

Abstract

A method for storing weft ends of a fluid injection weaving machine, characterized by comprising the steps of transferring weft ends formed by weft knitting by water flow, discharging the weft ends together with water from a discharge part to a storage part for storage, and moving the discharge part under discharge.

Description

Method and apparatus for storing weft ends

The present invention relates to a method and an apparatus for transporting a weft end generated by weft insertion in a fluid jet loom by a water stream and accommodating it in an accommodating portion.

Akita

Background art

In a fluid jet loom such as a water jet loom, a weft is inserted into a shed of a warp, then strung, and then the leading end is separated from the woven fabric by a cutter. For this reason, fluid jet looms are generally provided with a device for collecting the weft ends separated from the woven fabric.

As one of such weft end collecting devices, there is a device in which a weft end separated from a woven fabric is conveyed by a conveying device using a water stream, and is collected by flowing down the collecting container along with water from above ( Japanese Patent Application Laid-Open No. 10-195 739).

In this conventional weft end collecting device, the weft ends naturally fall into the collecting container from the discharge part of the conveying device together with the water flow, and are accumulated in the collecting container, and are gradually piled up. The collection container separates the weft end from the water by a filter disposed therein. The separated weft ends are collected by the operator from the collection container at an appropriate time, and water is collected in an appropriate water tank and reused for transporting the weft ends.

In the weft end collecting device as described above, the weft end is accumulated above the height level of the collecting container, and as a result, the discharge part of the conveying device is blocked to prevent the water flow and the discharge of the weft end, thereby preventing the weft end from being discharged. Prevents transport.

Also, in the conventional weft end collecting device, the piles of the high pile of weft ends may collapse and be scattered outside the collection container. Work must be done. Furthermore, the scattered weft ends are contaminated by oil, dust, etc. around the collecting device, and such dirt is collected by the collected weft ends. Will hinder the reuse of '' Disclosure of the Invention

Based on the above, weft end recovery equipment requires frequent breaks of piles at the ends of piled wefts to make them horizontal, and therefore requires manual labor.

It is an object of the present invention to accommodate as many weft ends as possible and to reduce the recovery operation.

The weft end storing method for a fluid jet loom according to the present invention is characterized in that the weft end formed along with the weft insertion is transported by a water stream, discharged from the discharge section to the storage section together with the water stream, stored, and discharged. Is moved.

The weft end accommodating device of the fluid jet loom according to the present invention includes a conveying accommodating unit that conveys a weft end formed along with the weft insertion by a water flow, and discharges and accompanies the water flow from a discharge unit to a storage unit. Moving means for moving the discharging unit during discharging.

The discharge unit can be moved by reciprocating linear motion, swinging motion, rotating motion, and the like. Alternatively, a plurality of discharge units may be provided, and a switching unit or an on-off valve may be operated to switch the discharge unit to be actually discharged, thereby moving the discharge unit. When the discharge section is moved, the arrival position of the water and the weft end in the storage section changes, so that the position at which the weft end accumulates in the storage section changes and is prevented from accumulating at one location. As a result, a large amount of weft ends can be accommodated in the accommodation section without requiring any manpower, and the number of collection operations is reduced.

• The storage section may be moved while the discharge section is being discharged. With such a configuration, it is possible to variously change the arrival positions of the water and the weft ends into the storage unit by moving the storage unit.

Another weft end accommodating method of the fluid jet loom according to the present invention is to transport a weft end formed along with weft insertion by a water flow, discharge it from a discharge part to a storage part together with the water flow, and store the same. Vary the water flow during discharge.

Another weft end accommodating device of the fluid jet loom according to the present invention includes a conveyor housing for conveying a weft end formed along with a weft insertion by a water flow, and discharging and accommodating the weft end together with the water flow from a discharge unit to a storage unit. Means, and means for changing the water flow during discharge. In other weft end accommodating methods and devices, the direction of the water flow may be changed by swinging the discharge port of the discharge section, the opening of the flow control valve for the transport water, the pressure of the transport water, etc. May be changed to change the amount of carrier water, thereby changing the discharge speed (momentum) of the water flow. In other weft end accommodating methods and devices, when the water flow is changed, the position of the water and the weft end reaching the accommodating portion changes, so that the position where the weft end accumulates in the accommodating portion changes. Accumulation at one location is prevented. As a result, a large amount of weft ends can be accommodated in the accommodating portion without requiring any manpower, and the collection work is reduced. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a view showing one embodiment of a weft end accommodating device according to the present invention.

FIG. 2 is a plan view of a storage tank and a hose moving mechanism in the weft end storage device shown in FIG.

FIG. 3 is a view showing a second embodiment of the weft end accommodating device according to the present invention.

FIG. 4 is a view showing a third embodiment of the weft end accommodating device according to the present invention.

FIG. 5 is a view showing a fifth embodiment of the weft end accommodating device according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Referring to FIGS. 1 and 2, the weft end accommodating device 10 is applied to a water jet loom together with a weft end processing device 12 for treating the leading end of a weft.

The water jet loom inserts a weft (not shown) from the weft insertion nozzle (not shown) into the opening of the warp 14 using pressurized water, and the leading end of the weft inserted is inserted into the weft end treatment device 1. The woven fabric is constrained and held by 2 and the weft is plied in front of the weaving cloth by 16 to form a woven fabric 18. The leading end of the weft is cut from the woven fabric 18 by a cutter (not shown). Thereby, a weft end is formed.

The weft end treatment device 12 includes a block-shaped weft catch bracket 20 for catching the leading end of the weft. The weft catching bracket 20 receives the leading end of the weft to be beaten into the slit 22 and discharges the pressurized water from the discharge channel 24 to the discharge channel 26 through the depth of the slit 22. As a result, the leading end of the weft is brought into contact with the pressurized water at the depth of the slit 22, is pulled by the discharge water channel 26, and is restrained and held. The slit 22 has a horizontal U-shape so as to receive the weft to be wound from the upstream side in the moving direction of the warp 14. The weft is received in the slit 22 with its tip piercing the weft catch bracket 20 in the thickness direction. The drainage channel 24 is formed by a pipe 28 whose upper end is inserted into the weft catch bracket 20 from below to the depth of the slit 22.

The pressurized water is supplied from the water storage tank 30 to the discharge water channel 24 via the pipes 34 and 34 by the pump 32. The pressurized water discharged into the discharge channel 26 is collected by the weft end storage device 10 together with the cut weft ends, returned to the water storage tank 30 from the weft end storage device 10, and used again as pressurized water. Is done.

The liquid level in the water storage tank 30 is detected by the water level sensor 36. When the liquid level is below a predetermined level, the solenoid valve 38 is opened to refill the water in the water holding tank (not shown) from the water supply port 40. As a result, the level is maintained within a predetermined allowable range.

The weft end accommodating device 10 receives a pipe 28, a flexible hose 42 connected to a lower end of the pipe 28 to form a discharge portion, and water and a weft end discharged from the hose 42. The storage tank 44, which is opened upward to form a storage section, forms a transfer storage means, and the hose moving mechanism 52 forms a moving means for moving the discharge section. 4 Move the container at 6.

The hose 42 forming the discharge portion forms a conveyance path for the weft end, that is, a discharge water path, together with the pipe 28. The hose 42 is attached to the loom frame 50 by an attaching tool 48 at the upper end thereof together with the lower end of the pipe 28. Instead of having the hose 42 and the separate pipe 28, the upper end of the hose 42 may be inserted into the weft catch bracket 20, and the upstream side of the internal space may be used as the discharge channel 24.

The lower end of the hose 42 is attached to the hose moving mechanism 52. The hose moving mechanism 52 assembles the cam lever 54 with a pivot pin 56 to the frame 50 of the loom so as to be able to swing in a horizontal plane, and rotates the eccentric force 58 around the vertical line by the electric motor 60. Swing the force mulper 54 in the horizontal plane. The cam lever 54 is always in contact with the outer peripheral surface of the eccentric cam 58 by the spring 61. The electric motor 60 is supported on a frame 50 of the loom by a motor bracket 62. The lower end of the hose 42 is attached to the other end of the cam lever 54 by an assembling tool 63 so that the weft end flows out of the housing tank 44 together with the water from above. For this reason, the discharge port 96 formed at the lower end of the hose 42 is moved with respect to the storage tank 44 above the storage tank 44 with the rotational movement of the force wrapper 54. However, the swing range of the cam lever 54 is limited to a range in which the water and the weft end flowing out of the hose 42 do not scatter outside the storage tank 44.

The storage tank 44 has a circular bottom wall and a peripheral wall perpendicular to the bottom wall.Also, a plurality of holes 64 are formed on each of the peripheral wall and the bottom wall to allow water to pass therethrough, but to prevent weft ends from passing therethrough. Yes. Therefore, the storage tank 44 functions as a storage unit having a filter function of receiving the weft end from the hose 42 together with water and separating the two.

The storage tank moving mechanism 46 mounts a disk-shaped turntable 68 on a support base 66 via one or more bearings 70 so as to be rotatable around a vertical line, and places it on the turntable 68. Case 72 is arranged, and storage tank 44 is arranged in case 72. The support base 66 is installed on the floor 74.

A ring-shaped gear 76 is attached to the outer periphery of the case 72. The gear 76 is an external gear, and is combined with the gear 80 rotated by the electric motor 78. The electric motor 78 is attached to the floor 74 by a bracket 82. For this reason, when the turntable 68 is rotated by the electric motor 78, the case 72 and the storage tank 44 are rotated around the vertical axis.

The case 72 has a space 84 for accommodating the storage tank 44, and has a plurality of holes 86 on the bottom wall for passing water flowing out of the storage tank 44. The space 84 is slightly larger than the bottom wall of the storage tank 44 in order to facilitate the attachment / detachment of the storage tank 44 during weft end collection work and to facilitate the outflow of water from the storage tank 44. It has a circular bottom and is open upward.

The water that has passed through the hole 8 6 of the case 7 2 is collected by the recess 8 8 formed on the turntable 68 and opened upward, and the support base 6 6 extends from the hole 90 communicating with the bottom of the recess 8 8. It flows into the water storage tank 30 through the hole 92 and the flow path 94.

During weaving, the pressurized water is constantly discharged from the discharge channel 24 to the discharge channel 26 by the pump 32. As a result, the weft ends, together with the discharged water, The hose 42 is conveyed through the outlet 42 and discharged into the storage tank 44 together with water from the outlet 96 at the lower end of the hose 42.

During weaving, the motors 60 and 78 are rotated continuously or intermittently. As a result, the outlet 96 of the hose 42 is swung by the hose moving mechanism 52 to be loosely displaced with respect to the storage tank 44, and the storage tank 44 is moved by the storage tank moving mechanism 46. It rotates and is displaced slowly with respect to the outlet 96 of the hose 42.

If the storage tank 44 and the discharge port 96 are both displaced as described above, the arrival position of the water and the weft end into the storage tank 44 changes variously. The position at which the weft is deposited varies in a variety of ways, preventing the weft ends from accumulating at one location in the storage tank 44, and the weft ends are evenly stored in the storage tank 44. As a result, a large amount of weft ends can be stored in the storage tank 44 without requiring any manpower, and the number of collection operations is reduced.

The capacity of the weft end in the storage tank 44 is detected as the volume of the weft end, and the height position of the weft end in the storage tank 44 is determined by the weft end such as a photoelectric sensor or an ultrasonic sensor. This is possible by detection by the sensors 98. However, the weight of the weft end in the storage tank 44 may be detected by a weight type sensor such as a strain gauge to detect the weft end storage amount.

The output signal of the weft end sensor 98 is supplied to a weft end processing control device (not shown), and the weft end processing control device confirms that a predetermined amount of weft ends has been stored in the storage tank 44 and that the storage tank 4 It is used as a signal to notify the recovery of the weft end in 4 by an indicator light or the like. Therefore, the worker receives such a notice by an indicator light or the like, and can collect a sufficient amount of weft ends from the storage tank 44 before overflowing.

In the above embodiment, the weft end accommodating device 10 moves the outlet 96 of the hose 42 and the accommodating tank 44 together, so that the water and the weft end of the weft end enter the accommodating tank 44. By changing the arrival position in various ways, the weft ends can be evenly stored in the storage tank 44. Alternatively, only the outlet 96 of the hose 42 may be moved.

Referring to FIG. 3, the weft end accommodating device 100 uses a fluid pressure cylinder 104 as a drive source of the hose moving mechanism 102. Fluid pressure cylinder 104 is horizontal It is pivotally mounted to the frame 50 by a pivot pin 106 extending in the direction.

The fluid pressure cylinder 104 has the lower end of the hose 42 attached to the piston pad by an assembling tool 108 so that the weft ends are discharged together with water into the storage tank 44 from above. . As a result, when the piston rod of the fluid pressure cylinder 104 expands and contracts, the outlet 110 at the lower end of the hose 42 is displaced in a vertical plane, and the direction of the water flow discharged from the hose 42 changes. Is done. '

Therefore, the position at which the weft ends accumulate in the storage tank 44 also changes depending on the weft end storage device 100, so that the weft ends are concentrated at one location in the storage tank 44. It is prevented and stored in the storage tank 44 evenly. As a result, a large amount of weft ends can be stored in the storage tank 44 without requiring any manpower, and the collection work is reduced.

Referring to FIG. 4, the weft end accommodating device 120 includes a water flow selecting mechanism 122 for changing a water flow discharged toward the storage tank 44, instead of the hose moving mechanism. The water flow selection mechanism 1 2 2 is an aluminum pipe 1 2 instead of a flexible hose.

4, the pipe 1 24 is assembled to the frame 50 together with the pipe 28 by an assembling tool 126.

The distal end of the pipe 124 is connected to a water flow divider 128 that divides the discharged water flow. The water flow splitter 128 has a plurality of outlets 130 for discharging the weft ends together with the water, and an electromagnetic on-off valve 132 is disposed at each outlet 130. Solenoid on-off valve

1 32 is selectively opened and closed by the control device.

In the weft end accommodating device 120, the electromagnetic open / close valve 132 opened during weaving is selectively changed. As a result, the actual discharge port moves and the position where the weft ends accumulate in the storage tank 44 changes, so that the weft ends are prevented from being concentrated in one location in the storage tank 44. Therefore, it is uniformly stored in the storage tank 44. As a result, a large amount of weft ends can be stored in the storage tank 44 without requiring any manpower, and the collection work is reduced.

Referring to FIG. 5, instead of the hose moving mechanism, the weft end accommodating device 140 has a water flow selecting mechanism 144 for changing the amount and direction of the water flow discharged toward the storage tank 44. Have. The water flow selection mechanism 144 uses an aluminum pipe 144 in place of a flexible hose, and assembles the pipe 144 with the pipe 28 by using an assembling tool 144 to the frame 50.

The tip of the pipe 144 is connected to an electromagnetic flow control valve 148 that divides the discharged water flow and adjusts the flow rate. The electromagnetic flow regulating valve 148 has a plurality of outlets 150 for discharging the weft ends together with water.

In the weft end accommodating device 140, the degree of opening of each outlet 150 is continuously or intermittently changed by the electromagnetic flow regulating valve 148 during weaving. As a result, the flow velocity and amount of water discharged from each outlet 150 are changed, and the flow velocity (water force) is also changed to change the direction. Since the amount and direction of the weft ends discharged in accordance with the change of the water flow are similarly changed, the position where the weft ends are deposited in the storage tank 44 changes. As a result, the weft ends are prevented from accumulating in one place in the storage tank 44, and are stored evenly in the storage tank 44. Storage tank 44 Can be stored in storage tank 4 and collection work is reduced.

Also in the embodiments shown in FIGS. 4 and 5, the housing 72 may be moved by rotating the case 72 by an electric motor.

The present invention is not limited to the above embodiments, and can be variously modified without departing from the gist thereof.

Claims

The scope of the claims

A fluid jet loom, comprising: transporting a weft end formed along with a water stream by a water stream, discharging the weft end from a discharge section together with the water stream into a storage section, and moving the discharge section being discharged. How to store the weft end.

2. The method for storing weft ends according to claim 1, further comprising moving the storage section during discharge from the discharge section.

3 Weft ends formed by the weft insertion are conveyed by a water stream, discharged from the discharge unit and stored in the storage unit together with the water flow, and the weft ends of the fluid jetting loom that change the water flow during discharge are stored. Method.

(4) Conveyance and accommodation means for transporting the weft end formed by weft insertion with a water flow and discharging it from the discharge section to the storage section together with the water flow to store the same, and moving means for moving the discharge section being discharged A storage device for the weft end of a fluid jet loom.

5. The weft end accommodating device according to claim 4, further comprising a mechanism for moving the accommodating unit during discharge from the discharge unit.

(6) A fluid containing transport means for transporting a weft end formed by weft insertion by a water flow and discharging it from a discharge part to a storage part together with the water flow, and a means for changing the water flow during discharge. A storage device for the weft end of an injection loom.