JPH1112897A - Fly waste removing apparatus for loom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the generation of fly waste in a loom in high efficiency at a low cost. SOLUTION: Compressed air supplied from a compressor of a fly waste removing apparatus 40 of a loom is passed through a high-pressure gas introducing pipe P and blasted from the openings of short pipes P1, P2 opened against a yarn-guiding part 20a. Flexible short tubes 41, 42 attached to the short pipes are randomly swung by the flow of the compressed air. Accordingly, the blasting area is not restricted to a narrow direction of the yarn-guiding part but randomly distributed over a wide range of the guiding part to enable efficient removal of the waste yarns deposited on the yarn guiding part and thereabout. The generated fly waste is effectively removed by this process to prevent the generation of defective woven cloth. Since the fly waste removing apparatus has a simple structure, it can be installed in a small space and is producible at a low cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fly waste removing device for a loom, and more particularly to a fly waste removing device suitable for a high-speed loom.

[0002]

2. Description of the Related Art In a high-speed loom such as a gripper-type automatic loom, for example, a weft is drawn out of a cheese winding at a high speed and a plurality of guide portions are provided in a yarn guiding portion for guiding the weft to a weave. Because of the high-speed running, the vehicle receives strong friction and generates a large amount of fluff, and these fluff accumulates in and around the yarn guiding portion. On the other hand, the air flow in the yarn running direction accompanying the weft withdrawal is strong because of the high-speed loom, and the fluff that has accumulated in the yarn guiding section and the like becomes lump as a lint with this air flow. And jumped into the woven part, causing defects.

[0003] Conventionally, as a fly waste removing device of this type of loom, for example, as shown in Japanese Utility Model Laid-Open Publication No. 48-39752, an air outlet is provided near a yarn guiding section for drawing out a weft.
2. Description of the Related Art There has been known an apparatus in which blowing air is constantly blown toward a yarn guiding section during a machine base operation.

However, in this fly waste removing device, the air blowing outlet is directed in a certain direction, the air blowing direction is constant, and the air pressure is weak, so that the fly waste cannot be removed effectively. Here, if the air pressure is too high, the running weft slacks and defective lateral insertion occurs, so that it was not possible to increase the air pressure more than necessary. In addition, this fly waste removing device has a large air outlet, requires a large space for installation of the device, and has a space limitation in order to provide it in a narrow yarn guiding portion. Furthermore, since the fly waste removing device is large-scale, the cost of the device and the cost of installation are high. An object of the present invention is to solve the above-mentioned problem, and an object of the present invention is to provide a fly waste removal device for a loom that can efficiently and inexpensively prevent the generation of fly waste.

[0005]

Means for Solving the Problems and Effects of the Invention In order to achieve the above object, a structural feature of the invention according to the first aspect is a loom having a yarn guiding portion for inserting a yarn into a weaving gate. There is provided a high-pressure gas introduction pipe opened toward the yarn guiding section, and a short flexible tube attached to the opening of the high-pressure gas introduction pipe. As a material of the tube, a soft plastic or a stuffing material is used.

According to the first aspect of the present invention, when the high-pressure gas supplied from the high-pressure gas supply source is injected from the high-pressure gas introduction pipe opened toward the yarn guiding section, the high-pressure gas is introduced. A short flexible tube attached to the opening of the tube is swung in a random direction by the passage of high pressure gas. Thereby, the injected high-pressure gas is randomly injected into a wide range of the yarn guiding portion, not in a limited direction of the yarn guiding portion, and the fly waste accumulated in the yarn guiding portion and the vicinity thereof can be efficiently removed. it can. as a result,
According to the first aspect of the invention, the generation of fly waste can be effectively removed, and the occurrence of defects in the woven fabric can be prevented. In addition, since this fly waste removing device has a simple structure in which a short flexible tube is attached to a high-pressure gas introducing pipe, the space for installing the device is small, and the device is installed in a narrow yarn guiding portion or the like. Suitable to do. Further, the fly waste removing device has a simple configuration, and is provided at a very low cost.

According to a second aspect of the present invention, there is provided an apparatus for removing fly waste of a loom according to the first aspect, wherein the on-off valve is provided in the high-pressure gas introduction pipe to open and close the pipe. And a control device for controlling the on-off valve to be opened for a predetermined time at predetermined time intervals. The predetermined time interval is in the range of several minutes to ten and several minutes, and the fixed time is preferably in the range of several seconds to ten and several seconds.

According to the second aspect of the present invention, the high pressure is applied only for a predetermined short period of time necessary for removing the fly waste every predetermined time during which the fly waste is required to be injected. Gas is injected through a flexible tube. As a result, wasteful use of high-pressure gas can be prevented, and the generation of fly waste can be reliably prevented, so that the operation cost of the apparatus can be reduced. Further, since the injection of the high-pressure gas is limited to a certain short time, the slack of the running weft can be prevented, and the defective weft insertion can be prevented.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration in which a fly waste removing device is applied to a high-speed automatic loom known as a gripper loom according to the embodiment. This is schematically shown by a schematic diagram.
This high-speed automatic loom includes a yarn feeder 10, a loom main body 20,
An electric drive box 30 for driving the loom main body 20, and a fly waste removing device 4 provided near the yarn guiding portion 20a of the loom main body 20;
0.

A yarn feeder 10 winds a cheese winding part 11 which is a plastic tube around which a weft of several tens of thousands m is wound, and a weft drawn from the cheese winding part 11 in order to keep the tension constant. An accumulator 12 is provided. Following the yarn feeder 10, the yarn guiding section 2 of the loom main body 20
0a is provided, and the weaving section 2 follows the yarn guiding section 20a.
0b is provided.

As shown in FIG. 2, the yarn guiding section 20a is provided with a weft brake band 21, a tensioner 22, a weft transfer section 23 including a feeder, a centering blade, a self-page gripper, a tacking needle, and scissors. . In the weft brake band 21, the brake is applied simultaneously with the driving of the weft. The tensioner 22 is
The shuttle 24 pulls the weft inserted in the cloth direction of the weaving portion 20b to eliminate slack. The feeder of the weft transfer section 23 picks the weft and transfers it to the shuttle 24. The centering blade is for positioning the transfer of the weft, and the self-page gripper is for transferring the weft to the shuttle 24 and running the shuttle 24 to the weaving section 20b. The tacking needle is
The weft grasped by the self-page gripper is woven into the ear, and the scissors cut the weft at a predetermined position at the same time as the delivery of the weft to the shuttle 24. Oribe 20
b, a reed 25 is provided so that warp yarns are aligned and supplied, and a shuttle 24 holding a weft runs in the aligned warp yarns.

[0013] Above the yarn guiding portion 20a of the loom main body 20, as shown in FIG. The fly waste removing device 40 includes two short gas tubes separated by a high-pressure gas introduction pipe P connected to a compressor 50 serving as a high-pressure air supply source and a T-shaped branch pipe T connected to the other end of the introduction pipe P. It has tubes P1 and P2. Short pipe P1
Is directed above the weft brake band 21, and a flexible short tube 41 is connected to the end. Short pipe P2
Is directed above the weft passing portion 23 and in the direction of the weaving mouth, which is the entrance of the weaving portion 20b, and a flexible short tube 42 is connected to the end. The tubes 41 and 42 are formed of a flexible material such as rubber or plastic. However, one short tube may be used.
It may be more than books. In the middle of the high pressure gas introduction pipe P,
An electromagnetic on-off valve 43 is interposed, and opening and closing of the high pressure gas introduction pipe P is controlled by opening and closing of the electromagnetic on-off valve 43.

The electric drive box 30 includes a switch, a control circuit, a timer, and the like, and is connected to a drive section of the loom main body 20 by wiring, so as to control the operation of the drive section of the loom main body. The electric drive box 30 is provided with a timer control unit 31.
Is wired and connected to the electromagnetic on-off valve 43,
Are opened at predetermined time intervals T (for example, several minutes to several tens of minutes) at predetermined time intervals T (for example, several seconds to several tens of seconds). However, the times T and t are not limited to this.

Next, the operation of the embodiment configured as described above will be described. When the switch of the electric drive box 30 is turned on, the operation of the loom main body 20 starts, and the supply of the weft from the yarn feeder 10 to the loom main body 20 is performed. Here, the timer control unit 31 starts measuring a predetermined time T, and the electromagnetic on-off valve 43 is kept closed. When the predetermined time T has elapsed, the electromagnetic on-off valve 43 is opened for a predetermined time t under the control of the timer control unit 31.

Accordingly, the high-pressure air supplied from the compressor 50 passes through the high-pressure gas introduction pipe P and passes through the yarn guiding section 2.
The short tubes 41, 42, which are jetted from the openings of the short tubes P1, P2 opened toward Oa and are attached to the short tubes P1, P2, are swung in random directions by the passage of high-pressure air. As a result, the injected high-pressure air is randomly injected into a wide range of the yarn guiding portion 20a instead of the limited direction of the yarn guiding portion 20a, and the yarn guiding portion 2
It is possible to efficiently remove fly waste accumulated in and around the area 0a. When the time t elapses, the electromagnetic on-off valve 43 is closed, the supply of high-pressure air is stopped, and the time T
, And the same processing is repeated thereafter.

As described above, according to the above embodiment, the generation of fly waste can be effectively removed, and the occurrence of defective woven fabrics can be prevented. In addition, since this fly waste removing device has a simple structure in which the flexible short tubes 41 and 42 are attached to the high-pressure gas introduction pipe, the space for installing the device is small, and the narrow yarn guiding portion is provided. 20a and the like. Further, the fly waste removing device has a simple configuration, and is provided at a very low cost.

Further, at every predetermined time T during which fluff is required to be injected with gas, the high-pressure air is removed from the flexible air only for a short period of time t of several seconds to several tens of seconds required for removing the fly waste. What is necessary is just to inject through the tubes 41 and 42. Therefore, the generation of fly waste can be reliably prevented while the useless use of high-pressure air is prevented, so that the operation cost of the fly waste removal device can be reduced. Further, since the injection of the high-pressure air is limited to a certain short time, it is possible to prevent the running weft from sagging and prevent the weft from being deflectively inserted.

In the above embodiment, the case where the fly waste removing device is applied to a gripper type high speed loom has been described. However, the present invention is not limited to the gripper type, but may be an air jet type, a rapier type, or the like.
The present invention can be similarly applied to other types of high-speed looms such as a water jet type, and the generation of fly waste can be prevented.

In the above embodiment, the case where the fly waste removing device is applied to a high-speed loom has been described.
The fly waste removing device of the present invention can also be applied to places where fly waste is generated, such as in a high-speed knitting machine. That is, in a knitting machine having a yarn guiding portion for inserting a yarn into a knitting mouth, a high-pressure gas introduction pipe opened toward the yarn guiding portion, and a flexible short tube attached to an opening of the high-pressure gas introduction tube. And a fluff removing device for a knitting machine can be configured.

[Brief description of the drawings]

FIG. 1 is a schematic diagram schematically showing a configuration in which a fly waste removing device according to an embodiment of the present invention is applied to a high-speed automatic loom.

FIG. 2 is a partially broken cross-sectional view showing, on an enlarged scale, a state in which a fly waste removing device is installed in the loom.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Yarn feed stand, 11 ... Cheese winding part, 12 ... Accumulator, 20 ... Loom main body, 20a ... Yarn guiding part, 20b ... Weaving part, 21 ... Weft brake band, 22 ... Tensioner, 2
3 ... weft transfer section, 24 ... shuttle, 25 ... reed, 30 ...
Electric drive box, 31: timer control unit, 40: fly waste removal device, 41, 42: tube, 43: solenoid on-off valve, 5
0: Compressor, P: High pressure gas inlet pipe, P1, P2 ...
Short pipe, T ... Branch pipe.

Claims (2)

[Claims] In a weaving machine having a yarn guiding portion for inserting a yarn into a weaving opening, a high-pressure gas introduction pipe opened toward the yarn guiding portion, and a flexible member attached to an opening of the high-pressure gas introduction tube. And a short tube having: a fluff removing device for a loom. 2. An apparatus for removing fly waste from a loom according to claim 1, wherein the open / close valve is provided in the high-pressure gas introduction pipe to open and close the pipe, and the open / close valve is opened for a short time at predetermined time intervals. And a control device for controlling so as to cause the fly waste to be removed from the loom.