KR940007107B1 - Faulty weft yarn removing system for loom - Google Patents

Abstract

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Description

Loose weft removal device of the loom

1 is a schematic perspective view of the whole showing a first embodiment of the present invention.

2 is a plan view of the vicinity of a cloth fell (front-most of woven cloth).

3 is a front sectional view of the traction device.

3A is a plan sectional view of an air mover.

4 is a flow chart showing the front end portion of the insertion failure weft removal procedure.

5 is a flowchart showing the interruption portion of the insertion failure weft removal procedure.

FIG. 6 is a flowchart showing the rear end portion of the insertion failure weft removal procedure. FIG.

7 is a state diagram of the loom of the shear portion of the insertion failure weft removal operation.

8 is a state diagram of the loom at the interruption of the insertion failure weft removal operation.

9 is a state diagram of the loom of the rear end of the insertion failure weft removal operation.

10 is a plan view of the cutter portion.

11 is a side view of the cutter portion.

12 is a layout view of an upward spray nozzle showing a second embodiment of the present invention.

13 is a plan view of an Indian arm, showing another embodiment.

14 is a flow chart of the first half of the insertion process of weft weft insertion of the third embodiment of the present invention.

Fig. 15 is a flowchart of the latter part of the insertion failure weft removal procedure of the third embodiment of the present invention.

16 is a mechanical traction state of a third embodiment of the present invention.

Fig. 17 is a schematic perspective view of the whole showing a fourth embodiment of the present invention.

18 is a plan view near the claude pel.

19 is a front view near the claude pel.

20 is a flow chart showing the front end portion of the insertion failure weft removal procedure.

21 is a state diagram of the loom of the front end portion of the insertion failure weft removal operation.

Fig. 22 is a state diagram of a loom at an interruption portion of the insertion failure weft removal operation.

23 is a state diagram of the loom of the rear end portion of the insertion failure weft removal operation.

24 is a block diagram showing a fifth embodiment of the present invention.

Fig. 25 is a perspective view showing the weft insertion nozzle circumference of the loom of the fifth embodiment of the present invention.

Fig. 26 is a sectional view showing the traction removing means of the fifth embodiment of the present invention.

27, 28, 29, 30, 31 and 32 are flowcharts of a fifth embodiment of the present invention.

Fig. 33 is a plan view showing a loom state of the front end portion of the insertion failure weft removal operation of the fifth embodiment of the present invention.

34 is a plan view showing a loom state of an interruption portion of the insertion failure weft removal operation of the fifth embodiment of the present invention in a plan view.

35 is a plan view showing a loom state of the rear end portion of the insertion failure weft removal operation of the fifth embodiment of the present invention in a plan view.

* Explanation of symbols for the main parts of the drawings

1: drum type weft storage device 4: weft insertion nozzle

5: body (reed) 6: body support

7: cloth fell 9: cutter

11,12 Upward injection nozzle (first air jet nozzle) 14A: Indian nozzle (second air jet nozzle)

15: Indian Arm 16: Air Mover

17,18: winding roller 19: suction device

23 suction suction pipe 24 air injection port

25: mouse (weft guide) 26: point pin

27 load 28 weight (additional means)

29: action member 30: proximity switch (tension detector)

31: light sensor (bad weft detector) 33: electric motor

34: air cylinder 36: proximity switch (rotation detector)

110: weft insertion length detection means 112: removal length detection means

113: determination means 30: traction removal means

Y: Weft Y₁: Weft

Y₂: Weak insertion defect.

The present invention relates to a device for removing a defective weft of a loom.

As a conventional insertion fault weft removal device of a loom, there exist some which remove the insertion failure weft in the following procedure, as shown in Unexamined-Japanese-Patent No. 63-256749.

1. When the weft insertion failure is detected, the loom stop signal is output, but the loom operates inertial, so weaving of the weft thread by the cutter near the weft insertion exposure tip is prevented. It is in a continued state. The complete stop of the loom takes place during the insertion of the next weft after the body has beaten the misplaced weft. During this stop, the weft thread is relaxed between the weft insertion nozzle and the cloth fell (front most of woven cloth) by the next weft insertion.

2. Inject air upward from the air jet nozzle (upward jet nozzle) installed on the lower side of the weft between the weft insertion nozzle and the clad pel to blow the weft into the reverse U-shape and transport the intermediate part to the inlet of the traction device. . The traction device here consists of a pair of traction rollers that are contactable and detachable, and suction spray pipes for directing the weft yarns between these rollers, and the upward spray nozzle carries the intermediate portion of the weft yarns to the suction side opening end of the suction spray pipes for suction airflow. Aspiration by

3. Next, the loom is reversed and the insertion weft is exposed to the clad pel. In this reversal process, the weft is cut by a cutter near the tip of the weft insertion nozzle. The end of the weft thread leading to the clad pel by cutting of the weft thread is drawn into the suction injection pipe by the action of the upward injection nozzle and the suction injection pipe, and enters between the pair of traction rollers by the injection airflow of the suction injection pipe.

4. After holding the weft yarn between the pair of towing rollers, the weft yarns are towed by the rotation of the towing rollers. Therefore, the poor insertion weft is drawn out and removed in the inclined opening.

However, in such a conventional insertion failure weft removing device, since the weft leading to the weft insertion nozzle is blown up by the upward injection nozzle, it is blown up in an inverted U shape between the weft insertion nozzle and the front of the loom, and the range is high in the horizontal direction. There was a risk of spreading into the slope and entangled on the slope, or due to the weft's own weight, the vertex of the inverted U-shape drooped down or shook, causing the blown state to become unstable and inadvertently leading to the traction device (suction jet pipe).

Moreover, it is necessary to arrange a traction apparatus (suction injection pipe) in the injection direction (upward) of an upward injection nozzle, the bending of the weft yarn increased at the time of the weft pulling, and there existed a danger of cutting of the weft yarn.

In addition, when the weft is sent between a pair of traction rollers by the jetting air flow of the suction injection pipe to grip between the rollers, the gap between the rollers is narrowed just before the holding, so that the jetting air hits the rollers and is reflected. Not only were they unable to gripping between the rollers, but also the wefts were entangled with other equipment and required cumbersome maintenance.

The present invention aims to solve such a conventional problem.

For this reason, the present invention provides a weft insertion device for a weaving machine for guiding the weft yarn between the clad pel and the weft insertion nozzle to a traction device, towing by the traction device to draw out the weft insertion weft from the inclined opening, and The following configuration is adopted.

(1) a means for cutting the weft yarn between the clad pel and the weft inserting nozzle before the weft delivery as the traction device, and blowing the air toward the weft yarn between the clad pel and the weft inserting nozzle so as to connect the weft yarn to the weft yarn. It is set as the structure which installs the air injection nozzle which guides | induced to the said towing apparatus to the predetermined direction which should be guided.

(2) Or an air jet nozzle which injects air toward the weft yarn between the clad pel and the weft insert nozzle, and guides the weft thread leading to the at least clad pel in a predetermined direction, and guided by the air jet nozzle in the predetermined direction. A guide arm for moving the in-plane intersecting the phase and leading the weft to the traction device is provided.

(3) In the case of (2), the air jet nozzle may be one which stops the air jet when at least the guide arm and the weft thread contact each other.

(4) When the traction device is provided with a gripping member that can be contacted and detached, and a suction spray pipe for guiding the weft yarn between these gripping members, the suction spray pipe is blown with air before gripping the weft yarn between the pair of gripping members. It is good to stop.

(5) A pair of winding rollers, each of which is provided on the same axis line as the traction device, rotates around the rear axis line where the weft yarns are held between the end faces that are contactable and detachable, and winds the weft yarns between the end faces of these authority rollers. When provided with the suction injection pipe which guides the weft yarn, the suction injection pipe may be rocked toward the outer circumferential surface of the take-up roller after holding the weft yarn between end faces of the pair of take-up rollers.

In the above configuration (1), since the weft thread leading to the clad pel is sprayed in a straight line and stabilized, it can be reliably guided to the message device.

In the configuration of the above (2), it is possible to ensure delivery to the towing device by the guide arm, and to be arranged near the extension line of the clad pel without having to set the arrangement position of the towing device in the injection direction of the air injection nozzle. Because of this, the weft bend is less during the weft pulling, it is possible to prevent the cutting of the weft.

In the configuration of the above (3), in the case of guiding from the delivery arm by the injection airflow of the air injection nozzle, even if the delivery arm crosses the weft, the weft remains off the delivery arm with the injection airflow and only the delivery arm moves. There is a risk that it may not be delivered reliably in some cases, but this can be prevented by at least stopping the air injection when the guide arm contacts the weft.

In the configuration of the above (4), when the weft is sent between the pair of holding members by the injection airflow of the suction injection pipe, the reflection of the injection airflow can be prevented by stopping the air injection before the holding, I can do it smoothly.

In the configuration of (5), when the weft is wound and pulled by the winding roller, the weft yarn can be smoothly swollen and reliably wound so as to surround the outer circumference of the winding roller, and the weft yarn is rapidly removed from the suction injection pipe. In this case, entanglement with the winding roller can be prevented.

EMBODIMENT OF THE INVENTION Hereinafter, 1st Embodiment of this invention is described based on drawing.

1 is a schematic perspective view of the entirety, the weft yarn Y is measured by the drum-type weft length measuring storage device 1, and when the weft is inserted, the weft thread is inserted along the forward retreat of the locking pin 3 by the solenoid 2. It is taken out by the air injection of the nozzle 4 (main nozzle), and weft is inserted. The weft insertion nozzle 4 is attached to the body support 6 together with the body 5.

The inserted weft Y is immersed in the clad pel 7 by the body 5 and the woven fabric 8 is woven. Thus, between the weft insertion nozzle 4 and the clad pel 7 in the vicinity of the body needle point motion, the electronically driven cutter 9 consisting of the movable blade 9a on the upper side and the fixed blade 9b on the lower side. The weft Y is cut by Moreover, the cutter guide 10 (refer FIG. 2) is provided along the movable blade 9a of the upper side, and the weft yarn Y is guided along the lower edge. Reference numeral 40 is a temple.

As the insertion failure weft removing device, the body support 6 is provided with first and second upward spray nozzles 11 and 12 as air spray nozzles (see FIG. 2). What is necessary is just to make the injection direction of these upward injection nozzles 11 and 12 parallel to the body 5.

Moreover, the <-shaped guide arm 15 which swings around the pole output shaft 14 by the air motor 13 is provided (refer FIG. 2).

An air mover 16 (suction jet pipe) and a pair of winding rollers 17 and 18 are provided as a traction device, and a suction device 19 connected to a blower (not shown) as a final processing device is provided. It is.

Referring to the air mover 16, as shown in FIG. 3, the support 22 is freely rotated around the support shaft 21 on the base 20, and the support 22 is provided. The tip end portion of the suction injection pipe 23 is enclosed and fixed to it. The suction injection pipe 23 produces | generates the suction airflow on the inlet side, and produces the injection airflow on the exit side by air injection from the air injection part 24 provided in the intermediate part inner peripheral part.

On the inlet side of the suction injection pipe 23, a cylindrical mouse (weft guide portion) 25 is freely attached to the inside of the vertical plane by the point pin 26. The mouse 25 is biased by a counterweight 28 provided on the rod 27 attached thereto to be adjustable in position. When the tension of the weft yarn Y delivered to it becomes excessive, the mouse 25 reacts to the force of the counterweight 28. In the clockwise direction in Fig. 3, and the weaving thread as the action member 29 of the tip of the rod 27 approaches the proximity switch (excessive tension detection switch) 30 is turned on. It is possible to detect an excessive tension of Y.

Moreover, the reflection type optical sensor 31 for weft detection is provided in the inner peripheral part of the mouse 25.

Here, the support 22 is rotated by the actuator 32, the position at which the suction injection pipe 23 is directed (center) between the end faces of the pair of winding rollers 7 and 18, and the winding rollers 17 and 18. The swinging air cylinder 32 of the suction injection pipe 23 and the swinging air motor of the guide arm 15 It is made to operate | move synchronously by the air supply circuit similar to 13).

Among the pair of winding rollers 17 and 18, the winding roller 17 on the lower side is provided with a groove portion 17a on the upper end face in a conical shape. Rotational drive is possible by the electric motor 33.

The winding roller 18 on the upper side is axially movable, rotatably attached to the circumferential direction, and attached to the case 34a of the air cylinder 34 disposed vertically in a downward conical shape. The piston rod 34b is moved downward by the projection of the piston rod 34b, and the lower end portion is fitted into the groove portion 17a of the winding roller 17 on the lower side to hold the weft Y and at the same time, It is to follow the rotation of the winding roller 17 of the.

In addition, four small screws 35 are attached to the bottom of the drive-side winding roller 17 at equal intervals in the circumferential direction, so that the rotation pulse signal is output from the proximity switch 36 by the rotation thereof. .

The various devices of the insertion failure weft removing device function according to the instructions based on the flowcharts of FIGS. 4 and 5 in a control device (not shown in the hardware) in which a microcomputer is incorporated.

Next, the insertion failure weft removal operation will be described with reference to the state diagrams of FIGS. 7 to 9 according to the flowcharts of FIGS. 4 to 6 showing the insertion failure weft removal procedure.

If the weft sensor is not inserted correctly and the weft sensor on the opposite side of the weft insertion does not detect the weft, a stop signal is generated according to the weft insertion failure, which stops the power supply to the loom driving motor and automatically starts the automatic start. In order to do this, the processing according to the flowcharts of FIGS. 4 to 6 is started in accordance with an instruction from a control device (not shown).

In step 1 (described as S1 in the drawing, hereinafter in the same manner), cutting of the weft thread by the cutter 9 is prevented while the loom is inertial operation. It also prevents the insertion of the following weft.

In step 2, after weft insertion failure occurs, it stops in the exact position at 170 degrees (the body needle point is 0 degrees) of the loom main shaft which is in the next weft insertion timing.

By the above, a loom stops in the state of FIG. 7 (a), and step 3 or more is performed after stopping.

In step 3, the air jet from the 1st upward injection nozzle 11 is posted.

In step 4, the locking pin 3 is temporarily pulled out in the drum type weft length measurement storage device 1 to loosen the weft yarn Y for one lap. As a result, the weft Y is relaxed between the clad pel 7 and the weft insertion nozzle 4 (in detail, between the clad pel 7 and the cutter guide 10), and the relaxed weft Y is the first. It is blown up in an inverted U shape by the upward injection nozzle 11 (FIG. 7 (b): Although FIG. 7 is shown in plan view, partly blown up weft Y is extended toward the body 5 side for easy operation). I did). In addition, the weft loosening may be performed using a dedicated pin (not shown) separately provided at a position moved in the circumferential direction of the storage drum 1a with respect to the catching pin 3.

In step 5, the guide arm 15 is swung clockwise in FIG. 2 to prepare for delivery. In addition, the swing of the relief arm 15 by the air motor 13 and the swing of the air mover 16 by the air cylinder 32 are performed by the same air supply circuit. When the guide arm 15 swings, The air mover 16 also swings clockwise in Fig. 2 (Fig. 7 (c)).

In Step 6, the main shaft of the loom is reversed by 310 °. In this reverse process, the weft is guided by the cutter guide 10, but when entering the reverse operation, the air injection of the first upward injection nozzle 11 is stopped, and the second Air injection of the upward injection nozzle 12 is started. This is because the first upward spray nozzle 11 is hidden under the cutter 9 by moving to the clad pel 7 side, and is always entangled when the weft Y is blown by the second upward spray nozzle 12. Because there is a danger.

Therefore, in step 7, the weft Y is cut by operating the electronically driven cutter 9 about 10 times. That is, the weft inserting cutter 9 is shared as a means for cutting the position between the clad pel and the weft inserting nozzle before guiding the weft to the traction device. Send a command to cut to the imputation drive 10 times. The cutting operation of the cutter 9 about 10 times is because it is necessary to reliably cut with low tension.

Thereby, the weft yarn Y leading to the clad pel 7 is blown up in a straight line (FIG. 8 (b); as shown in FIG. Shown to stretch out). In this way, the weft yarn Y being blown up is stabilized by blowing the weft yarn Y leading to the clad pel 7 in a straight line before delivery, and the delivery by the delivery arm 15 described later can be assured.

In step 8, air injection of the air mover 16 (suction injection pipe 23) is started. This is for the suction preparation of the weft yarn Y.

In step 9, the air injection of the second upward spray nozzle 12 is stopped. This is to weaken the upward force for preparation for delivery.

In step 10, the guide arm 15 is swung in the counterclockwise direction in FIG. 2, and when the weft Y which has been blown starts to fall due to self-controlled weight, the guide arm 15 is pulled to the guide arm 15, and the air mover 16 To the mouse 25. At this time, when pulling the weft yarn by at least the guide arm 15, if the air injection of the second upwardly spray nozzle 12 is not stopped, the weft Y being towed is always pulled upwards, so that in the guide arm 15 There is a risk of slipping and blowing up. In addition, the direction of the air mover 16 changes with the swinging of the guide arm 15 to direct the centers of the take-up rollers 17 and 18.

By this guidance, the tip of the weft yarn Y is sucked into the air mover 16, and injected into the gripping portion between the end faces of the winding rollers 17 and 18 (Fig. 8 (e)).

In step 11, the air injection of the air mover 16 is stopped. This is to prevent the reflection of the sprayed air when the weft yarn Y is gripped by the subsequent winding rollers 17 and 18.

In step 12, the driven side winding roller 18 is moved downward by the air cylinder 34 to press-contact the driven side winding roller 17, and the weft yarn Y is held therebetween.

In step 13, the air mover 16 is swung in the clockwise direction in FIG. 2, and the tip end thereof is tangential to the outer circumferential surfaces of the take-up rollers 17 and 18. FIG. This is for the preparation of smooth winding. At the same time, the guide arm 15 swings and retracts from the inlet of the air mover 16 so that the weft Y is not disturbed.

Therefore, the state of FIG. 8 (f) is obtained.

In step 14, the loom spindle is inverted to an opening phase of 180 ° to expose the defective insertion weft to the clad pel 7 completely (Fig. 9 (g)).

In step 15, the signal of the optical sensor 31 is read and the presence or absence of the weft is determined. If there is no weft, the operation stops as an error.

In step 16, it is determined whether the spray combination mode (high speed serious consideration mode) or the non-combination mode (reliability serious mode) is determined. These modes are previously selected by operation of a mode changeover switch of an operator.

In the case of the injection combination mode, the process proceeds from step 16 to step 17.

In step 17, air injection of the air mover 16 is started. In addition, the air injection amount at this time may be adjustable according to the kind of seal | sticker.

In step 18, the drive-side winding roller 17 is rotationally driven counterclockwise in FIG. 2 by an electric motor 33. Therefore, the driven side winding roller 18 also rotates. Thereby, the weft Y is wound around the outer circumference of the winding rollers 17 and 18 while pulling the weft yarn in the winding direction by air injection of the air mover 16 (FIG. 9 (h)). In addition, flat flanges 41 and 42 are provided at the lower end and the upper end of the winding rollers 17 and 18 to prevent separation of the thread from the winding rollers 18 and 17. The outer circumferential edge of 42 may be a tray, so that the sprayed air may be swirled.

In step 19, the number of rotation pulses output from the proximity switch 36 is read to determine whether or not the value is greater than or equal to the predetermined value.

In step 20, the signal from the overload tension detector 30 is read to determine ON and OFF, and the flow proceeds to step 21 in the case of OFF.

In step 21, the signal of the optical sensor 31 is read, and it is determined whether the weft is present, that is, whether the winding is finished. If there is a weft thread (when winding up), the process returns to step 19. If there is no weft thread (winding up), the process proceeds to the next step 23.

Therefore, when the number of rotation pulses becomes more than a predetermined value (that is, the winding does not end even if the predetermined rotation) occurs due to the rotation of the winding roller before the winding is finished, it is regarded as idle, and thus, it is treated as air in the determination in step 19.

Moreover, also when the excess tension detector 30 turns ON during winding, it will process as an error by the determination of step 20. FIG.

In step 23, the driven side winding roller 18 is moved upward by the air cylinder 34 to be spaced apart from the driving side winding roller 17, and in the next step 24, the rotation of the driving side winding roller 17 is stopped.

Therefore, the weft yarn Y held and wound by the winding rollers 17 and 18 is released, blown by the injection air of the air mover 16, and sucked into the suction device 19 and discarded.

Subsequently, in step 27, air injection of the air mover 16 is stopped.

The above-described jet combined mode is wound by the winding rollers 17 and 18 while blowing the weft from the air mover 16, thereby pulling the weft at high speed by the air flow, and winding the winding rollers 17 and 18. The large pulling force is applied, and the removal rate can be reliably removed at high speed, thereby improving the operation rate. However, depending on the type of yarn, there is a risk of cutting because of too much tension, in this case, the following non-combination mode is selected.

In the case of the jet non-combination mode, the process proceeds to step 18 'without performing the air injection of the air mover 16 in step 16. FIG.

In step 18 ', the drive-side winding roller 17 is rotationally driven by the electric motor 33. Therefore, the weft yarn Y is wound around the winding rollers 17 and 18.

In step 19 ', the number of rotation pulses outputted to the proximity switch 36 is read, and it is determined whether or not it is equal to or greater than a predetermined value.

In step 20 ', the signal of the overload tension detector 30 is read out, and its ON / OFF is determined, and when it is OFF, it progresses to step 21'.

In step 21 ', the signal of the optical sensor 31 is read out, and it is determined whether or not the weft is wound, that is, whether winding is completed. If there is a weft (when winding), the process returns to step 19 ', and if there is no weft (wound winding), the process proceeds to the next step 22.

In step 22, the number of rotation pulses output from the proximity switch 36 is read out to determine whether or not the predetermined value (here, the predetermined value is smaller than the predetermined value in step 19 ') is less than or equal to the next step. Proceed to 23 '.

Here, when it is below a predetermined value, it means that the wrapped weft is below a predetermined length, and it can be regarded as cut | disconnected in the middle, and processes it as an error.

In step 23 ', the driven-side winding roller 18 is moved upward by the air cylinder 34 to be spaced apart from the drive-side winding roller 17. In the next step 24', the rotation of the drive-side winding roller 17 is stopped. .

Therefore, the weft yarn Y gripped and wound on the winding rollers 17 and 18 is released.

In step 25, air injection of the air mover 16 is started, and in the next step 26, a time delay is delayed. During the movement, the weft between the take-up rollers 17 and 18 is blown out by the jet air of the air mover 16, and is discharged and sucked into the suction device 19 and discarded.

Thereafter, in step 27 ', the air injection of the air mover 16 is stopped.

After completion of the spray combination mode and the non-combination mode, both steps 28 and later are executed.

In step 28, the ready button of the loom is automatically turned on.

In step 29, the presence or absence of inclined cutting, moving cutting, and thread end capturing thread cutting is detected, and it is determined whether or not it is in the ready channel state within a prescribed time. If no, it is treated as an error.

In step 30, the guiding arm 15 and the air mover 16 are set to the correct position.

In step 31, the run button of the loom is automatically turned on.

The loom restarts in the state of FIG. 9 (i) by the above.

In the present embodiment, the cutters 9: 9a and 9b and the cutter guide 10 are formed as shown in FIGS. 10 and 11.

That is, the tip of the movable blade 9a of the cutter 9 is cut obliquely (reference code 9c), and covered with the cutter guide 10 of the same shape, making the guide on the woven fabric side of the movable blade 9a unnecessary. By bringing the cutter 9 close to the woven fabric side, the anisotropy can be shortened. In addition, the seal can be prevented from entering the gap between the cutter 9 and the cutter guide 10.

Reference guard 9d is a cutout for preventing the return of the weft thread.

The tip of the cutter guide 10 may be bent toward the weft insertion nozzle 4 so that the weft thread is reliably blown from the loom edge side.

12 shows a second embodiment of the present invention.

The present embodiment uses two upward spray nozzles, and installs between the length measuring storage device 1 and the weft inserting nozzle 14 that use the first upward spray nozzle 51, and separates the wefts by one turn. Is blown in the reverse U-shape between the weft measurement storage device 1 and the weft insertion nozzle 4 by the first upward injection nozzle 51 (see also twelfth (a)).

Then, the air injection of the 1st upward injection nozzle 51 is stopped, the air injection of the 2nd upward injection nozzle 52 provided between the cutie 9 and the clad pearl 7 is started, and the weft is guided. Then, the weft is cut by the cutter 9 (see also twelfth (b)), and the weft is blown in a straight line by the second upward injection nozzle 52 (see also twelfth (c)).

13 shows another embodiment.

In the present embodiment, when the delivery auxiliary spray nozzle 60 is provided on the guiding arm 15 and guides the weft to the air mover 16 due to the swinging of the guiding arm 15, the air of the injection nozzle 60 is removed. By spraying, the weft is surely blown into the mouse 25 of the air mover 16.

As described above, according to the embodiment, the following effects are obtained.

(1) When guiding the weft to the traction device, the weft leading to the clad pel is sprayed in a straight line so that it can be reliably guided.

(2) The weft traction can be reliably guided to the traction device by the guiding arm, and the traction device does not need to be disposed in the spray direction of the air jet nozzle, and can be disposed near the extension line of the clad pel. The warp of the weft yarn disappears at the time, and cutting of a thread can be prevented.

(3) When the weft by the guide arm is delivered, at least when the guide arm comes in contact with the weft, the delivery of air can be more reliably stopped.

(4) When the weft is blown between the pair of holding members by the injection airflow of the suction injection pipe, the reflection of the injection airflow can be prevented by allowing the airflow to stop before the gripping, and it can pass smoothly.

(5) When winding and pulling the weft by the winding roller, the direction of the suction injection pipe is changed, so that the weft yarn wraps around the winding roller outer circumference to ensure winding and the weft yarn is suddenly removed from the suction injection pipe. It can prevent that it winds around a winding roller.

14 through 16 illustrate embodiments of the present invention. The insertion failure weft removal apparatus of this embodiment has the same structure as that of the first embodiment. Therefore, the following description proceeds with reference to FIGS. 1 to 3. In addition, since the work procedure shown in the flowchart of FIG. 14 and FIG. 15 is the same as that of 1st Example from step 2 to step 9, the description is abbreviate | omitted.

In FIG. 14, in step 10A, the guide arm 15 is swung in the counterclockwise direction, and when the weft Y which has been blown up starts to fall under its own load, the guide arm 15 is pulled by the guide arm 15 to move the air mover ( 16) to the mouse 25. Here, when the weft Y is pulled out by the guide arm 15 at least, if the air injection of the second upward jetting nozzle 12 is not stopped, the guide arm 15 is always pulled upwards, so that the guide arm 15 is always pulled upward. There is a risk of slipping out of the pipe and becoming a blown up sieve.

By this guidance, the tip portion of the weft yarn Y is drawn into the air mover 16 and injected and passed between the end faces of the take-up rollers 17 and 18 (Fig. 8 (e)). At this time, the air mover 16 is directed toward the center of the take-up rollers 17 and 18.

Subsequently, in step 11A, the guide arm 15 is swinged clockwise in FIG. 2 so as to retreat from the inlet of the air mover 16 so as not to interfere with the pulling of the weft yarn Y.

In step 12A, the loom main shaft is inverted to 180 ° of the opening phase to completely expose the defective insertion weft to the clad pel 7.

Then, in step 13A, it is determined whether or not the set time has elapsed, and the process proceeds to step 14A when the set time has elapsed, and the air injection of the air mover 16 is stopped.

During this time, the weft yarn Y is pulled by the air injection of the air mover 16, and the insertion failure weft is pulled out of the inclined opening (FIG. 8 (f)) and finally blown by the injection air of the air mover 16, and the winding roller It is sucked into the suction device 19 through the end faces of the 17 and 18 and discarded.

In step 15A, in order to confirm whether or not the insertion failure weft is removed by air injection of the air mover 16, the signal of the optical sensor 31 installed in the mouse 25 of the air mover 16 is read to see if there is no weft. Determine whether or not.

If there is no weft, it is considered that the insertion failure weft is removed, the process proceeds to step 32A, the guide arm 15 swings in the counterclockwise direction in FIG. 2 to return to the home position, and then the process proceeds to step 33A. Restart.

If there is a weft yarn, it is assumed that the insertion failure weft yarn has not been removed, and steps 16A to 31A to mechanically pull the weft yarn by the pair of winding rollers 17 and 18 are executed.

That is, as shown in FIG. 16 (1), in the case where the warp yarn Y is generated and the weft Y stops in the phantom state shown in the drawing, despite the traction by the air injection of the air mover 16, When the insertion failure weft remains in the inclined opening as shown in the solid line shown, steps 16A to 31A to pull the weft by the pair of winding rollers 17 and 18 are executed.

In step 16A, the driven shaft winding roller 18 is moved downward by the air cylinder 34, the end face is pressed against the end face of the drive shaft winding roller 17, and the weft Y passing between these end faces is passed. Gripping.

In step 17A, the air mover 16 is swung in the clockwise direction in FIG. 2 so that the tip end thereof is tangential to the outer circumferential surfaces of the winding rollers 17 and 18. This is for guiding the weft Y in the winding direction.

In step 18A, it is determined whether the injection combined use mode (acceleration emphasis mode) or the scream mode (assurance importance mode) is selected. These modes are selected in advance by an operator such as a mode changeover switch. Therefore, the air injection of the air mover 16 is started in step 19A only in the spray combination mode.

In step 20A, the drive shaft winding roller 17 is rotationally driven counterclockwise in FIG. 2 by the electric motor 33. Therefore, the driven side winding roller 18 also rotates. Therefore, the weft yarn Y is wound around the winding rollers 17 and 18 (FIG. 16 (2)). By this winding, the weft yarn Y is pulled out, and the insertion failure weft yarn remaining in the inclined opening is removed.

In this case, in the spray combined use mode, the weft yarn Y is wound around the take-up rollers 17 and 18 while being pulled in the direction of winding the weft yarn by the air injection of the air mover 16. At this time, the tip of the air mover 16 is directed in a tangential direction with respect to the outer circumferential surfaces of the take-up rollers 17 and 18, so that the weft Y is expanded so as to surround the outer circumference of the take-up rollers 17 and 18, and the winding can be surely performed. It can be wound at the same time, and can be prevented from being wound around the take-up rollers 17 and 18 when the weft yarn Y suddenly falls out of the air mover 16. Moreover, since the flat flanges 41 and 42 are provided in the lower end part and upper end part of the winding rollers 17 and 18, the separation | separation of the thread from the winding rollers 17 and 18 can be prevented.

In step 21A, the number of rotation pulses output from the proximity switch 36 is read to determine whether or not the value is greater than or equal to the predetermined value, and when it is less than the predetermined value, the flow advances to the next step 22A.

In step 22A, the signal of the proximity switch (excessive tension detector) 30 is read to determine ON and OFF, and when it is OFF, the flow advances to step 23A.

In step 23A, the air mover 16 reads the signal of the optical sensor 31 to determine whether there is no weft, i.e., whether or not winding is completed, and returns to step 21A when there is a weft (when winding). .

Therefore, if the number of rotation pulses accompanying the rotation of the winding roller 17 becomes more than a predetermined value (that is, the winding is not finished even if the predetermined number of rotations) before the winding is completed, it is regarded as idling and an error is received at step 21A. To be processed.

Further, even when the proximity switch (excess tension detector) 30 is turned on (when weft Y is in an excessive tension state) during winding, the process is processed as an error in step 22A.

If there is no weft in the optical sensor 31 in the air mover 16 (FIG. 16 (3)), it is regarded as winding end and the flow advances to the next step 24A.

In step 24A, it is determined whether the injection combination mode or the non-combination mode is established, and the flow proceeds to step 25A only in the non-combination mode to stop the air injection of the air mover 16.

In step 26A, the air mover 16 is rocked in the counterclockwise direction in FIG. 2 to direct its tip to the center of the winding rollers 17 and 18. This is the preparation to call the weft Y.

In step 27A, the driven side winding roller 18 is moved upward by the air cylinder 34 to be spaced apart from the drive side winding roller 17, and in the next step 28A, the rotation of the drive shaft winding roller 17 is stopped.

Therefore, the weft yarn Y, which is gripped by the winding rollers 17 and 18 and is wound up, is released.

In step 29A, the air injection of the air mover 16 is started. In the next step 30A, it is determined whether the set time has elapsed, and the flow proceeds to step 31A in the elapsed step, and the air injection of the air mover 16 is stopped. .

In the meantime, the weft between the take-up rollers 7 and 18 is blown out by the injection air of the air mover 16 and discharged (FIG. 16 (4)), and it is sucked into the suction device 19 and discarded.

Thereafter, the flow advances to step 32A. The guide arm 15 is swung in the counterclockwise direction in FIG. 2 to return to the correct position. Then, the flow advances to step 33A to restart the loom.

As the mechanical traction device, in addition to the winding rollers 17 and 18 of the above-described embodiment, there may be adopted a method of traction while holding a weft thread between the outer circumferential surfaces of a pair of traction rollers or a method of gripping and moving using a grip arm or the like. good.

Moreover, in the said Example, although the method of removing a bad insertion weft on the weft insertion side (weft insertion nozzle side) was shown, it is not limited to this, It can carry out suitably, for example, removing on the opposite side of weft insertion.

As described above, according to the present embodiment, only the air flow type traction device is operated as the first step, thereby enabling processing in a short time in the case of relatively many simple stop causes, and mechanically acting as the second step when it is detected that the insertion failure weft is not removed. Since the reason for the stop is complicated by operating the traction device, it is possible to reliably remove the weft insertion in the shortest possible time, thereby greatly contributing to the improvement of the operation rate of the loom.

17 to 23 show a fourth embodiment of the present invention. The configuration of the present embodiment is substantially the same as that of the first embodiment except that the guide nozzle 14A is used instead of the guide arm 15. Therefore, the same reference numerals are attached to the same parts, and detailed description thereof will be omitted.

Referring to FIG. 17, as the insertion failure weft removing device, the body support 6 is supported and the first and second upward spray nozzles 11 and 12 as the first air spray nozzles are provided (FIG. 18, FIG. 18). These upward spray nozzles 11, 12 are the weft yarns Y between the clad pel 7 and the weft inserting nozzle 4 (in detail, between the clad pel 7 and the cutter guide 10). Air is blown upwards (parallel to body 5) from the lower side of the weft yarn Y to blow up the weft yarn Y.

In addition, a guide nozzle 14A serving as a second air injection nozzle is provided by supporting the temple (detailed temple cover) 13A (see FIGS. 18 and 19). The guiding nozzle 14A injects air in a direction intersecting the weft yarn Y blown up by the upward injection nozzles 11 and 12, and the traction device (detailed in the suction jet pipe of the air mover 16) which describes the weft yarn Y later. The mouth 25 is blown to the mouth 25 of the entrance 23. Instead of being supported by the temple 13A, a tack-in device (not shown) may be supported.

Moreover, as shown in FIG. 19, the branch pipe 51 in the middle of the air supply pipe 50 to the air injection port 24 of the air mover 16 (suction injection pipe 23) is flow-control valve 52 ) Is connected to the delivery nozzle 14A, and the air injection of the delivery nozzle 14A is synchronized with the air injection of the air mover 16. In addition, by the adjustment of the flow regulating valve 52, the injection air in the delivery nozzle 14A is a breeze compared with the injection air in the upward injection nozzles 11 and 12. FIG.

Next, the insertion failure weft removal operation will be described with reference to FIGS. 8 to 10 according to the flowchart of FIG. 20 showing the insertion failure weft removal procedure.

If the weft sensor on the opposite side of the weft insertion does not detect the weft because the weft is not inserted correctly, a stop signal is generated due to the weft insertion failure, which causes the power supply to the loom driving motor to be stopped and automatically starts. The process by the flowchart of FIG. 20 is started in response to the instruction | command in the control apparatus which is not shown in figure.

In step 1B (described as S1B in the drawing, hereinafter in the same manner), cutting of the weft thread by the cutter 9 is prevented while the loom performs the inertial action. It also prevents the insertion of the next weft.

In step 2B, after the insertion of the defective weft yarn, the stop is performed at a loom spindle axis angle of 170 ° (the body needle point is 0 °).

The loom stops in the state of FIG. 21 (a) by the above, and after step 3B is performed.

In step 3B, the air injection from the first upward injection nozzle 11 is started.

In step 4B, the catch pin 3 is temporarily removed from the drum type weft length measurement storage device 1 to loosen the weft yarn Y for one lap. Therefore, the weft Y is relaxed between the clad pel 7 and the weft insertion nozzle 4 (in detail, between the clad pel 7 and the cutter guide 10), and the relaxed weft Y is the first upward spray nozzle. (11) is blown up in an inverted U shape (Fig. 21 (b) Fig. 21 is shown as a plan view, but part blown up weft Y is shown to extend toward the body 5 side for easy operation). . The weft may be loosened using a dedicated pin (not shown) separately provided at a position moved in the circumferential direction of the storage drum la with respect to the locking pin 3.

In step 5B, the main loom spindle is reversed to 310 degrees. In this reversal process, the weft is guided by the cutter guide 10, but when the reversal action is entered, the weft of the first upward injection nozzle 11 is stopped and the air injection of the second upward injection nozzle 12 is started. This is because the first upward spray nozzle 11 is hidden under the cutter 9 by the movement to the clad pel 7 side, and is always wound around the inclined yarn when the weft yarn Y is blown by the second upward spray nozzle 12. Because there is a danger.

In step 6B, the weft yarn Y is cut by operating the electronically driven cutter 9 about 10 times. In the present embodiment, the cutter 9 is shared as a means for cutting the position between the clad pel and the weft insertion nozzle before guiding the weft to the traction device. Although an instruction to cut and operate about 10 times is sent to the electromagnetic drive unit, a dedicated cutter may be used separately from the cutter 9. The cutting operation of the cutter 9 about 10 times is because it must be surely cut with low tension.

Therefore, the weft yarn Y following the clad pel 7 is blown up in a straight line like Y _{a in} FIG. 19 (FIG. 22 (c); as in FIG. 21, in order to make the operation easier to understand in FIG. Raised weft Y is shown to extend toward the body 5). In this way, the weft Y is cut out before delivery, and the weft Y leading to the clad pel 7 is blown in a straight line, so that the weft Y is stabilized and no entanglement with an inclined lamp can be performed.

In step 7B, the air injection of the second upward spray nozzle 12 is stopped.

In step 8B, the air injection of the air mover 16 (the suction injection pipe 23) is started, and at the same time, the air injection of the delivery nozzle 14 is started. In step 9B, there is a time delay for a predetermined time.

Therefore, the weft Y which has been blown up is guided to the mouse 25 of the air mover 16 by the air flow in the delivery nozzle 14 through the states of Y _b and Y _c at the opponent of Y _a in FIG. 19. .

By this guidance, the tip of the weft yarn Y is sucked into the suction injection pipe 23 of the air mover 16 as shown by Y _{d in} FIG. 19, and is injected to the gripping portion between the end faces of the winding rollers 17 and 18. It enters (fig. 22 (d)).

In step 10B, the air injection of the air mover 16 stops, and the air injection of the delivery nozzle 14A stops at the same time. This is to prevent the reflection of the sprayed air during the holding of the weft yarn Y by the take-up rollers 17 and 18.

In step 11B, the driven side winding roller 18 is moved downward by the air cylinder 34 to press-contact the driving side winding roller 17, and the weft yarn Y is held therebetween.

In Step 12B, the air mover 16 is swung in the clockwise direction in FIG. 18 so that the tip thereof is tangential to the outer circumferential surfaces of the winding rollers 17 and 18. This is to prepare for a smooth winding operation.

Thus, the state of Fig. 22 (e) is obtained.

In Step 13B, the loom main shaft is inverted to 180 ° of the opening phase to expose the poor insertion weft to the clad pel 7 (Fig. 23 (f)).

In step 14B, the signal of the optical sensor 31 is read to determine the presence or absence of the weft. If there is no weft, the operation stops due to an error.

In step 15B, it is determined whether the injection combination mode (acceleration emphasis mode) or the scream mode (assurance importance mode) is selected. These modes are previously selected by an operator such as a mode changeover switch.

Processing (1), (2) and (3) after step 15B are the same as those in the first embodiment (see FIGS. 5 and 6), and description thereof will be omitted.

As described above, according to the present invention, after the weft yarn leading to the clad pel is blown up by the first air injection nozzle, the weft yarn is blown to the traction device by the second air injection nozzle of archipelago. I can surely lead. Moreover, since it can be arrange | positioned in the vicinity of the extension line of a clad pel, without having to set the arrangement | positioning position of a traction apparatus in the direction which blows up, since the bending of the weft thread becomes small at the time of weft pulling, the weft cutting can be prevented.

24 to 35 show a fifth embodiment of the present invention.

FIG. 24 shows a portion for detecting and re-driving the pseudo insertion length and the weft removal length of the weft insertion device of the loom in the thermal embodiment.

In Fig. 24, the weft yarn length Y₁ released from the yarn feeder (not shown) is wound on the drum 1a of the weft length measurement storage device 1 of the loom, and the length measurement storage is carried out. The tip end of the weft yarn Y 'stored in the drum 1a passes through the guide member 4 to the weft insertion nozzle 4 through the locking pin 3 of the electromagnetically driven self-return type inserted in the drum 1a. When the locking pin 3 is pulled out of the drum 1a by the electromagnetic drive during the weft insertion, the weft Y 'is released from the drum 1a by air injection from the weft insertion nozzle 4, and the bite weft Y' is removed. The air injection flow at the weft insertion nozzle 4 enters the orthogonal opening (not shown). At this time, the contactless weft loosening sensor 106 provided in the vicinity of the drum 1a detects (picks up) the weft Y 'loosened from the drum 1a. That is, when the catching pin 3 is pulled out of the drum 1a, the weft length measuring storage device 1 from the weft length measuring storage device 1 to the weft inserting nozzle 4 through the guide member 104 in accordance with the air jet flow from the weft inserting nozzle 4. Since the weft Y 'sent out draws a conical shape with the outer peripheral portion of the drum 1a as the bottom face and the guide member 104 as the apex, the weft loosening detection sensor 106 detects the weft Y' passing through this without contact. Then, as the locking pin 3 is inserted into the drum 1a, the weft thread Y₁ is hooked on the locking pin 3, and the weft length measuring storage device 1 winds the weft thread Y₁, which is released from the thread feeder, onto the drum 1a. Prepare for the following weft insertion. On the other hand, when the locking pin 3 is pulled out of the drum 1a, the slingoid 2 is driven by the electric power supplied from the gripping pin drive circuit 108 on the basis of the rotation angle signal from the loom spindle angle sensor 107. Done by woman. Insertion of the locking pin 3 into the drum 1a is based on the rotation angle signal of the loom spindle angle sensor 107. It is performed by the elastic force of the return spring which is not shown in accordance with excitation removal.

On the other hand, when the weft yarn Y₁ is not inserted correctly when the weft yarn is inserted, and the filler (or the weft sensor) on the opposite side of the weft insertion nozzle (not shown) does not detect the weft yarn Y₁, the loom controller (not shown) inserts the weft yarn. Determining that a defect has occurred, the cutting operation of the cutter 9 to be described later in FIG. 25 is stopped in accordance with the stop signal due to the weft insertion failure, and the forward rotation stop, reverse rotation drive, and reverse rotation of the loom spindle (not shown) At the same time as stopping, the weft insertion length L 'of the pseudo Y' detected by the pseudo insertion length detecting means 110 is used for automatic start, and the removal length detecting means 112 and the determining means 113 The traction removal means 130 shown in FIG. 25 and FIG. 26 is driven in detail.

The weft insertion length detecting unit 110 starts according to the drive signal and the re-drive signal output from the loom control device and detects the weft insertion length of the weft yarn Y₁ whenever the weft yarn enters during normal operation of the loom. The weft insertion length L 'is detected by a weft loosening coefficient signal that counts the number of times the weft yarn Y' is sent out from the weft length measurement storage device 1 to the weft insertion nozzle 4. Specifically, the weft insertion length detecting means 110 is a reset signal indicating the stop of power supply to the solenoid 2 output from the locking pin driving circuit 108 for inserting the locking pin 3 into the drum 1a. And a weft bite count signal output from the weft loosening sensor 106 and amplified by the amplifier 111, and a reset signal interval (weft insertion length detecting means 110) is output from the catching pin driving circuit 108. Determination means for counting the number of weft loosening coefficient signals for each period after receiving any one reset signal until receiving the next reset signal, and referring this count value as a detection weft insertion length signal to be described later. Output to the thread length setter 114 in (113). The counting operation in the weft insertion length detecting means 110 resets the count value for each reset signal to "0" at the same time as the output of the actual length setter 114 ends, thereby loosening the weft in the next reset signal interval. Prepare for a new coefficient of the counting signal.

The removal length detecting means 112 is started by receiving a stop signal output from the loom control device, and is picked up by the rotation detector 36 which detects the rotation of the winding roller 17 in the towing removing means 130 described later. The determination means 113 which counts the number of signals as the rotation amount of the winding roller 17, converts this count value into the removal length L2 of the insertion defect weft Y2 removed by the traction removal means 130, and describes the removal length signal later. Is outputted to the comparator 116 in step 1).

The judging means 113 starts by receiving a stop signal output to the loom control device, and compares the detection weft insertion length L₁ and the detection removal length L2 when the weft insertion failure of the weaving machine has occurred to determine whether or not to remove the defective weft yarn. In this embodiment, the actual length setter 114, the set count value and the weft insertion length converter 115, and the comparator 116 are configured. The thread length setter 114 receives a signal, such as a weft insertion start rotation angle signal or a rotation angle signal immediately before weft insertion start, among the rotation angle signals output from the loom spindle axis sensor 107 as this preset signal. Every time, after receiving the count value which is the weft insertion length signal output from the weft insertion length detection means 110, and temporarily storing this count value as a setting coefficient value by the stop signal output from a loom control apparatus, Output to the weft insertion length converter 115. The setting coefficient value temporarily stored is erased by the re-drive signal output from the loom control device. The set count value and insertion weft length converter 115 converts the set count value output from the thread length setter 114 into the detection weft insertion length L₁ when the weft insertion defect of the loom occurs, and converts the converted count value. The weft insertion length signal is output to the comparator 116. The comparator 116 receives the detection weft insertion length signal output from the set count value and the weft insertion length converter 115, and the detection removal length signal output from the removal length detecting means 112, thereby detecting the detection weft insertion length. The detection weft insertion length L 의 at the time of weft insertion failure corresponding to the signal is compared with the detection removal length L 2 corresponding to the detection removal length signal.

The comparator 116 is such that when the detection removal length L2 is larger than the detection weft insertion length L₁ (L₂≥L₁), the insertion defect weft Y₂ is not cut during the removal and is completely removed in the inclined opening by the traction removal means 130 ( It is determined that the removal process is successful, and the re-drive signal is output to the loom control device. Conversely, when the detection removal length L2 is less than the detection weft insertion length L₁ (L₂ <L₁), the insertion failure weft Y₂ is cut during the removal, for example, and completely removed in the inclined opening by the traction removal means 130. If not, it is determined that it remains in the inclined opening (removal processing failed) and an error signal is output to the loom control device.

Fig. 25 shows the appearance of the weft insertion nozzle side of the loom provided with the insertion failure weft removal device of the present embodiment.

In the loom shown in FIG. 25, the body 5 is attached to the body support 6 together with the weft insertion nozzle 4. Thus, when the catch pin 3 is pulled out of the drum 1a, the weft yarn Y₁ loosened from the drum 1a by the air jet from the weft insertion nozzle 4 enters into the inclined opening, not shown, and then the body 5 Do body saliva exercises. In this operation, the weft yarn Y ', which has entered the warp opening, is immersed in the cloth with the clad pel 7 to cross the warp W up and down to weave the woven fabric 8. At this time, the body-driven weft of the electronically driven cutter (9) consisting of the upper fixed blade (9b) and the lower movable blade (9a) between the weft insertion nozzle (4) and the clad pel (7) in the vicinity of the body immersion load. Cut Y₁. These weft insertions, body needle movements, and cuttings are repeated one after another to produce a woven fabric 8.

Meanwhile, the traction removal means 130 includes a cutter guide 10, a plurality of upward injection nozzles 11 and 12, a guiding arm 15, an air mover 16, and a pair of upper and lower winding rolls 18 and 17. And a suction device 19 connected to a blower (not shown).

The cutter guide 10 is a weft of the weft Y 'when the weft Y' is blown up by air injection from one or both of the plurality of upward injection nozzles 11 and 12 between the pseudo insertion nozzle 4 and the inclination W. While supporting the part near the outlet of the insertion nozzle 4 from above, the supported part is led to the fixed blade 9b of the cutter 9 as the body support 6 moves. The cutter guide 10 is provided on the fixed blade 9b of the cutter 9, and the weft insertion nozzle side end portion of the warp W is inclined from the fixed blade 9b toward the body 5 through the body support 6 above. It is roughly parallel.

The plurality of upward spray nozzles 11 and 12 blows up the weft yarn Y 'upwards, for example, parallel to the body 5, between the cutter guide 10 and the weft insertion nozzle side end part of the inclination W. The body support 6 is spaced apart from the front and rear direction of the loom. Specifically, the first upward spray nozzle 11 is disposed close to the cutter guide 10 and toward the body 5 side, so as to correspond to the cutter 9 up and down during the reversal of the loom. The 2nd upward spray nozzle 12 is arrange | positioned apart from the cutter guide 10 and the body 5, and is located so that it may be located in the opposite side to the weft insertion nozzle from the cutter 9 during the reversal of the said loom.

The guide arm 15 is attached to a lower wall extending horizontally above the weft insertion nozzle 4 of the base 20 attached to the body support 6. Specifically, one end of the guide arm 15 is fixed to the output shaft of the air motor 13 as an actuator attached to the lower wall of the base 20. The guide arm 15 drives the air at the ready position indicated by the normal stop position indicated by the virtual line in the vicinity of the air mover 16 and the solid line on the second upward injection nozzle 12 side by the drive of the air motor 13. It starts and stops centering on the output shaft of the motor 13. At one edge of the guide arm 15, the trap 15a is formed by cutting in an arc shape. The capture section 15a opposes the inlet of the air mover 16 in the horizontal direction while the guide arm 15 is stopped at the normal stop position (see the imaginary line display in step 103 in FIG. 27). Moreover, in the state which the guide arm 15 stopped at the ready position, the capture | acquisition part 15a stops at the position a little further away from the loom front than the 2nd upward injection nozzle 12 with the 1st reversal of the loom main shaft mentioned later. (See the virtual line display in step 117 of FIG. 29).

The air mover 16 removes the insertion defect Y2 from the inclined opening to the weft insertion nozzle 4 side by the traction airflow, and is disposed on the lower wall of the base 20 at a position biased to the weft lobe than the air motor 13. It is. Specifically, as shown in FIG. 26, the air mover 16 is equipped with the suction injection pipe 23. As shown in FIG. The outlet side portion of the suction injection pipe 23 is fixed to the vertical wall of the L-shaped support 22. The rear end of the horizontal wall extending toward the inlet side of the suction injection pipe 23 of the support 22 is freely attached to the lower wall of the base 20 by the support shaft 140. An operating rod of the actuator 32 attached to the lower wall of the base 20 is connected to one side of the corner where the vertical wall and the horizontal wall of the support 22 contact. That is, the outlet of the suction injection pipe 23 is a normal stop position directed between the end faces of the upper and lower pairs of winding rollers 18 and 17 around the support shaft 140 by the expansion and contraction of the actuator 32. And the anti-curling position (refer to the solid line display in step 121 of FIG. 30) in the tangential direction with respect to the outer peripheral surfaces of the winding rollers 18 and 17). In the axial direction middle part of the suction injection pipe 23, the air injection port 24 connected to the air pressurization supply means not shown was provided. By injecting air from the air injection port 24 into the inlet injection pipe 23 toward the outlet side of the suction injection pipe 23, traction airflow is applied to the outlet side of the suction injection pipe 23 to the inlet side of the suction injection pipe 23. Causes intake airflow. At the inlet of the suction injection pipe 23, the swing of the cylindrical mouse 25 which covers this is raised by the point pin 26 in the up-down direction of a loom. The mouse 25 is counterclockwise in FIG. 26 with respect to the point pin 26 by means of a counterweight 28 which is provided with an adjustable axial position on the rod 27 attached to the mouse 25. When the shovel guided into the mouse 25 by the suction airflow of the suction injection pipe 23 becomes excessive and the tension of the bad weft Y2 becomes excessive, it repels the attitude force by the counterweight 28 and centers the point pin 26. Then, it swings clockwise in FIG. By such a clockwise swing, the actuating member 29 of the tip of the rod 27 approaches the contactless excess tension detector 30 such as a proximity switch provided on the upper wall of the base 20, and the excess tension detector ( 30) is ON to detect the excessive tension of the incomplete insertion weft Y₂. The acting member 29 contacts the upper part of the support 22 when the mouse 25 swings counterclockwise in FIG. 26 by the counterweight 28, and the receiving hole and the suction injection pipe in the center of the mouse 25 are sucked. It is also possible as a stopper in which the inlet of (23) does not cause positional shifts such as disturbing the introduction of the insufficiency weft Y2. The outer contact wall of the mouse 25 is provided with the same contactless insertion failure weft detector 31 of the reflection type optical sensor for detecting insertion failure weft Y2 introduced into the receiving hole of the mouse 25.

The upper and lower pairs of winding rollers 18 and 17 are towed and removed while being wound around the outer circumferential surface with the insertion weft weft Y 2 coming from the air mover 16. Among the upper and lower pairs of winding rollers 18 and 17, the winding roller 17 on the lower side has an upward truncated conical shape. In the upper end surface of the winding roller 17, the lower end part of the upper winding roller 18 is provided with the accommodating groove 17a. This winding roller 17 is a drive rotation type attached to the output shaft of the electric motor 33 as an actuator attached to the lower wall of the base 20. As shown in FIG. On the outer circumferential surface of the winding roller 17, a plurality of flanges 41 extending radially outward are provided at equal intervals in the outer circumferential direction. Such a plurality of flanges 41 approach the contactless rotation detector 36 such as a quick contact switch provided on the lower side of the base 20 by rotational driving in the outer circumferential direction of the winding roller 17, thereby rotating. The detector 36 is turned on to detect (pick up) the rotation of the take-up roller 17. The winding roller 18 of the upper side becomes the downward truncated conical shape arrange | positioned coaxially with the winding roller 17 of the lower side. This winding roller 18 is a driven rotary type which is axially movable and rotatably fitted in the circumferential direction to the actuating rod of a spring-loaded single actuated air cylinder 34 mounted perpendicularly to the upper wall of the base 20. It is. Between this winding roller 18 and the spring seat 156 provided in the actuating rod of the air cylinder 34, the elastic body 157 like coil spring wound up by the actuating rod is inserted, and this elastic body 157 is carried out. By this, the winding roller 18 is added downward. At the lower end of the working rod of the air cylinder 34, a nut 158 was attached to prevent the take-up roller 18 added by the elastic body 157 from falling out of the working rod. The nut 158 is disposed in the winding roller 18 so as not to protrude from the lower end surface of the winding roller 18.

The suction device 19 sucks out and removes the defective insertion weft Y 2 pulled out of the upper and lower pairs of winding rollers 18 and 17 out of the loom, and is positioned opposite the weft insertion nozzle than the upper and lower pairs of rollers 18 and 17. Is attached to the base 20 by screws 160 shown in FIG. Reference numeral 40 in Fig. 25 is a temple.

Next, the insertion failure weft removal operation of this embodiment will be described with reference to the flowcharts of FIGS. 27 to 32 and the state diagrams of FIGS. 33 to 35.

When the insertion failure weft occurs and the loom control device outputs a stop signal, the removal processing of the insertion failure weft starts, the cutting operation of the cutter 9 is stopped during the inertial operation of the loom, and the next weft insertion operation is also stopped. The locking pin 3 after the guide arm 15 is started and stopped from the normal stop position to the ready position and the air is blown from the first upwardly spray nozzle 11 to stop the guide arm 15 at the ready position. Is removed from the drum 1a, and a time delay is allowed for a predetermined time during which the weft yarn Y₁ for one wheel is released from the drum 1a, and the locking pin 3 is inserted into the drum 1a. It stops at the rotation angle position of 170 degrees which made immersion point O degree (steps 101-109 and FIG. 33 (a), (b)). In the forward rotation stop at the rotation angle position 170 °, as shown in step 109, the incomplete weft Y2 as the body weft thread in the oral opening at the time of insertion of the poor weft yarn intersects the inclination W up and down, while the inclined opening is It is almost at maximum.

After stopping the inertia operation of the loom, air is also injected from the second upward jet nozzle 12, and the drum 1a is discharged by air jet between the first upward jet nozzle 11 and the second upward jet nozzle 12. The weft yarn Y₁, which has been loosened for one turn, comes out through the weft insertion nozzle 4, and the weft yarn Y₁ is blown upward in an inverted U shape between the cutter guide 10 and the warp W (steps 110 and 33 (c) also). ). Moreover, in FIG. 32, the part blown up above the weft yarn Y 'is shown to the body 5 side in reverse U shape.

Then, with a predetermined time delay, the air injection of the first upstream injection nozzle 11 is stopped and the loom main shaft is reversed at a low speed to a rotation angle stop position of 310 ° (steps 111 to 113). In steps 104, 110 and 112, Controlling the air injection and the injection stop of the first and second upward spray nozzles 11 and 12 is carried out by a large amount of air blowing, so that the weft yarn Y 'is wound around the cutter guide 10 or the warp W by rapidly blowing the weft yarn Y'. This is because there is a risk, and the first upward spray nozzle 11 hides directly under the cutter 9 by the movement of the body support 6 to the chloro pel 7 side due to the reversal of the main shaft of the loom. In addition, when the main shaft is reversely stopped at the first reversing stop position where the rotational angle is 310 °, as shown in Step 113, the insertion failure weft Y2 is released from the inclination W and exposed to the clad pel 7, The inclination openings of the upper and lower sides are substantially parallel, and the inclined opening is almost minimized.

Following the first reversal stop of the loom, the cutter 9 is cut several times, for example, about ten times to cut the weft yarn Y '. Therefore, the poor insertion weft Y2, which is exposed to the clad pel 7 and located in the inclined opening, is separated from the weft Y₁ which enters the weft insertion nozzle 4 through the guide member 104 in the inclined length measuring storage device 1, The body of the trapping portion 15a of the guide arm 15, in which the cut portion on the weft insertion nozzle side is stopped at the ready position by the air injection of the second upward injection nozzle 12, on the inclination W of the insertion failure weft yarn Y2 ( It blows upward like a single thread in the vicinity of 5) side (FIG. 114 and 34 (a)). In addition, the cutter 9 is cut several times in order to cut reliably the tension of the part which cuts insufficiency weft Y2 of insertion.

Following the cutting operation of the cutter 9, the air mover 16 injects air to generate the traction airflow toward the outlet side of the suction injection pipe 23, and simultaneously generates the airflow in the inlet side of the mouse 25, After stopping the air injection of the 2nd upward injection nozzle 12, the guide arm 15 is moved and stopped from the ready position of the virtual line display of step 117 to the normal stop position of the solid line display of step 117 (steps 115-117). And 34 (b)). Therefore, a portion of the insertion weft yarn Y 2 which is blown up like a thread is guided in the vicinity of the air mover 16 at the catching portion 15a of the guide arm 15, and then sucked into the air mover 16, and the air is sucked into the air mover 16. It enters between the end faces of a pair of upper and lower winding rollers 18 and 17 which are spaced up and down at the mover 16. In addition, stopping the air injection from the second upward injection nozzle 12 prior to the movement from the ready position of the guide arm 15 to the normal stop position results in the insertion failure weft Y2 of the second upward injection nozzle 12 being reduced. This is to prevent the cutting portion of the insertion failure weft Y 2, which is guided from the guide arm 15 to the mouse 25 side of the air mover 16 by gradually weakening the blowing force, to escape from the guide arm 15.

After the stop of the guide arm 15 to the normal stop position, the loom spindle is reversed to the secondary reverse stop position which becomes the rotation angle position of 180 ° and stops at the secondary reverse stop position (steps 118 and 35). (a) degrees). When the loom spindle stops at the second reverse stop position, as shown in step 118, the inclined opening is maximized, and the inclined W falls from the inserted poor weft Y2 exposed by the clad pel 7 in the inclined opening.

Following the secondary reversal stop of the loom, the air injection of the air mover 16 is stopped, the upper winding roller 18 is piezoelectric to the lower winding roller 17, and wound up from the air mover 16. A cut portion of the poor insertion weft Y2 passing between the rollers 18 and 17 is gripped between the winding rollers 18 and 17 (Figs. 119, 120 and 35 (a)). At this time, the cut part of the insertion failure weft Y2 is elastically fitted by the winding rollers 18 and 17 by the action of the elastic body 157 arrange | positioned at the winding rolley 18 of the upper side. Thus, the air mover 16 is moved and stopped from the normal stop position of the virtual line display in step 121 to the anti-wrap position of the solid line display in step 121 (steps 121 and 35 (a) also). This prevents the air injected from the air mover 16 from being reflected by the take-up rollers 18 and 17 when the cut portion of the insertion failure weft Y2 is sandwiched and supported by the take-up rollers 18 and 17. The guide arm 15 is then moved and stopped from the normal stop position to the ready position (Figs. 122 and 35 (a)). It is determined whether or not the insertion failure weft Y2 enters the air mover 15 quickly (step 123).

When the insertion failure weft detector 31 in the air mover 15 does not detect the presence of the insertion failure weft Y2 and the insertion failure weft Y2 is not sucked into the air mover 16 (NO in step 123), The loom controller outputs an error signal to an error indicator such as a lamp or buzzer (not shown) (step 124). Therefore, the air indicator emits or emits light, thereby alerting the operator of the failure of delivery of the insertion failure weft Y 2 from the air mover 16, and preparing for the insertion failure removal process by the operator.

In contrast, when the insertion failure weft detector 31 detects the presence of the insertion failure weft Y2 and the insertion failure weft Y2 is sucked into the air mover 16 (step 123 is an example), the detection weft at the occurrence of the insertion failure of the weft yarn. The length L 'is read (step 125). Specifically, the thread length setter 114 temporarily stores the numerical value of the detected weft insertion length signal outputted from the weft insertion length detecting means 110 at the time of weft insertion failure by the stop signal in step 101, The count value of the temporarily stored detection position insertion length signal is output to the set count value and the weft insertion length converter 115, and the set count value and the weft insertion length converter 115 uses the real length setter 114. Is converted to the detected weft length L₁ at the time of weft insertion failure, and the converted weft insertion length signal is converted to the comparator 116. In parallel with this, the lower winding roller 17 is rotated to rotate the winding rollers 18 and 17 between the upper side and the lower side which hold the cut portions of the defective insertion weft yarn Y2 together (steps 126 and 35). (B)). Therefore, the insertion failure weft Y2 is wound in the inclined outer circumferential surface of the winding rollers 18 and 17 which are piezoelectric through the air mover 16 while being pulled in the inclined opening.

In the traction removal process of the insertion failure weft Y2 by the winding rollers 18 and 17, the removal length detection means 112 sequentially outputs the removal length signal to the comparator 116, and the comparator 116 at the step 125 above. The detected weft insertion length L₁ is compared with the detection removal length L2 corresponding to the removal length signal (step 127). If the detection removal length L2 according to the rotation of the winding roller 17 becomes larger than the detection weft insertion length L₁ while winding up the insertion failure weft Y₂ by the winding rollers 18 and 17 ( Step 127 means that the winding rollers 18 and 17 are idling without winding the weft insertion yarn Y2, for example, so that the loom controller stops the rotational drive of the winding rollers 17 and airs an error signal. It outputs to the display and alerts the worker of the failure of winding up the winding rollers 18 and 17 of the insertion failure weft yarn Y2 to prepare for the removal of the insertion failure weft by the worker (step 128).

When the insertion failure weft yarn Y2 is wound by the winding rollers 18 and 17 (No at step 131), when the tension of the insertion failure weft yarn Y2 being towed and removed from the inclined opening becomes excessive, the mouse 25 moves the balance weight 28. In response to the force of force, it swings clockwise in FIG. 26, and the actuating member 29 approaches the excess tension detector 30, and the excess tension detector 30 outputs the excess tension signal to the loom control device. That is, if the insertion failure weft yarn Y₂ is wound with the winding rollers 18 and 17, for example, when the insertion failure weft yarn Y₂, which is towed away from the inclined opening, is caught on the inclination W, the tension of the insertion failure weft yarn Y₂ becomes excessive, Since Y2 is cut in the middle and remains in the inclined opening, the loom control device judges that an excessive tension has been applied to the defective insertion weft Y2 that is being pulled out (step 129 is an example), and the loom control device drives the rotation of the take-up roller 17. At the same time, an error signal is output to the error indicator to warn the operator of the traction removal failure due to the excessive tension of the insertion failure weft Y2, and the worker prepares for the insertion failure removal process (step 130).

When the insertion failure weft detector 31 in the air mover 16 detects the absence of the insertion failure weft Y₂ while winding the insertion failure weft Y₂ by the winding rollers 18 and 17, and outputs a detection signal to the loom controller. The loom control device judges the removal end in the inclined opening of the insertion failure weft Y2 by the brimming rollers 18 and 17, and outputs this removal end signal to the comparator 116 (step 131 is an example). Therefore, the comparator 116 compares the detection weft insertion length L₁ in the set count value and weft insertion length converter 115 with the detection removal length L2 in the removal length detection means 112, so that the detection removal length L2 is the detection weft. If the insertion length is less than L₁ (L2 <L₁) (step 132 is an example). Since the removal in the inclined opening of the insertion failure weft Y2 by the traction removal means 130 has failed, the comparator 116 outputs an error signal to the error indicator to warn the operator of the failure in removal of the insertion failure weft Y₂. To prepare for the insertion failure weft removal process by the operator (step 133).

On the contrary, if the detection length L2 is larger than the detection insertion weft length L 위 or more (L2? L₁) (NO in step 132), it means that the removal of the insertion failure weft yarn Y₂ in the inclined opening by the traction control means is successful. , The comparator 116 outputs a restart signal to the loom control device. Then, the small-sized control device moves and stops the winding roller 18 on the upper side to be spaced apart from the winding roller 17 on the lower side (piezoelectric release of the winding rollers 18 and 17), and the winding roller on the lower side ( The rotation drive of 17) is stopped to generate intake airflow in the suction device 19, and then the air is blown from the air mover 16 (steps 134 to 137). A pair of upper and lower winding rollers 18 and 17 spaced up and down by air injection from the air mover 16 is blown into the suction device 19 by the insertion failure weft Y 2 and received by the suction device 19. Discharge out of the loom.

After stopping the air injection of the air mover 16 with a predetermined time delay necessary for the insertion failure weft Y2 blown up from the start of air injection in the air mover 16 to reach the suction device 19, The ready button is automatically turned ON (steps 138 to 140).

After that, the loom control device determines whether or not the warp cutting or moving cutting and the thread cutting with the thread tip are made, and the warp cutting, the moving cutting and the cutting of the thread catching thread occur within the prescribed time set in the loom controller and the preparation is completed. If not (step 141), the loom control device outputs an error signal to the error indicator, alerting the operator of the failure to remove the defective weft Y₂ due to warp cutting, moving cutting and thread end capping thread cutting. It prepares for repairs, such as diagonal cutting, moving cutting, and thread end capture thread cutting (step 142).

On the contrary, when the warp cutting, the moving cutting and the thread end capping thread cutting are not completed and the preparation is completed within the prescribed time (step 141 is an example), the loom controller automatically turns on the operation button of the loom and at the same time the guide arm ( 15) is moved from the ready position of the virtual line display of step 144 to the normal stop position of the solid line display of step 144, and the suction operation of the suction device 19 is stopped (steps 143 to 146 and 35th (c). )Degree). Therefore, the weaving operation of the loom is automatically restarted (automatic start) at the end of one cycle of the removal process of weft insertion defect Y2, and in the state of FIG. 35 (c).

As a result, according to this embodiment, when weft insertion failure occurs, and when the insertion failure weft Y₂ is removed, the detection removal length L₂ becomes greater than or equal to the detection weft insertion length L₁ when the weft insertion failure occurs, and the insertion failure weft Y₂ is inclined. The loom can be automatically restarted when completely removed in the opening.

As described above, according to the present embodiment, when the weft insertion failure occurs and the loom stops, and the weft insertion length detected when the weft insertion failure occurs when the weft insertion failure is removed in the orifice opening, the weft insertion length and the insertion failure weft yarn Since the removal lengths were compared, in the weft insertion of the weft insertion generator, weft insertion, called one-short or one-long long, of course, when the weft for the normal weft insertion length entered the orthogonal opening, Even when the length of the weft for the normal weft insertion length does not enter the inclined opening, it can be judged correctly whether the insertion failure weft was cut | disconnected on the way during removal.

Claims (10)

In the weft removal device of the weaving machine of the loom which guides the weft between the clad pel 7 and the weft insertion nozzle 4 to a traction apparatus, is pulled by the traction apparatus, and draws and removes an insertion failure weft yarn from the inclined opening, The cutter 9 which cuts the weft yarn between the clad pel 7 and the weft insertion nozzle 4 before guiding the weft to the traction device, and between the clad pel 7 and the weft insertion nozzle 4. An apparatus for weaving a weaving machine with a weaving machine, characterized in that an air jetting nozzle (11, 12) is provided for injecting air toward the weft yarn and directing the weft yarn leading to the clad pel (7) in a predetermined direction to guide the traction device. In the weft removal device of the weaving machine of the loom which guides the weft between the clad pel 7 and the weft insertion nozzle 4 to a traction apparatus, is pulled by the traction apparatus, and draws and removes an insertion failure weft yarn from the inclined opening, Air injection nozzles 11 and 12 for injecting air toward the weft yarn between the clad pel 7 and the weft insert nozzle 4 and guiding the weft yarn leading to the clad pel 7 at least in a predetermined direction; The weft removal device for weaving looms provided with guide arms 15 which move in-plane intersecting the wefts carried in the predetermined direction by the nozzles 11 and 12 and guide the wefts to the towing device. . The weft removal device of the weaving machine according to claim 2, wherein the air jet nozzles (11, 12) stop the air spraying at least when the guide arm (15) contacts the weft yarns. 2. The traction apparatus according to claim 1, wherein the traction device includes a gripping member that can be contacted and detached, and a suction spray pipe 23 for guiding the weft yarn between the gripping members, and the suction spray pipe 23 includes the pair of gripping members. Apparatus for removing a weft weaving loom, characterized in that the air injection is stopped before holding the weft in between. 2. The traction device according to claim 1, wherein the traction device is provided on the same axis and holds a pair of winding rollers (17, 18) for holding the weft yarn between the end faces that are contactable and detachable and then rotating around the axis to wind the weft yarn. And a suction injection pipe 23 for guiding the weft yarn between the end faces of these winding rollers 17 and 18, wherein the suction injection pipe 23 is between the end faces of the pair of winding rollers 17 and 18. The holding machine of the weaving machine, characterized in that it swings toward the outer circumferential surface of the winding roller after the weft yarn is held. A weaving loom removing device for guiding the weft thread leading to the clad pel (7) to the traction device, and pulling the weft thread by the traction device to draw out and remove the defective weft thread from the inclined opening. A weft detector 31 is provided which provides a traction device and a mechanical traction device, and detects the presence or absence of a weft thread in relation to whether or not the inserted weft is removed, and operates only the airflow type traction device as the first step. When it is detected that the insertion failure weft is not removed based on the signal from the detector 31, a control device for operating at least the mechanical traction device as a second step is provided. . The weft removal device for a weaving loom according to claim 6, wherein said control device simultaneously operates both of said air flow type towing device and said mechanical towing device as a second step. In the weaving loom removal device of the loom which guides the weft thread which extends in the inclined row outward direction from the cladding pel 7 to a traction apparatus, is pulled by the traction apparatus, and draws out and removes a faulty weft thread from the inclination opening, Wefts blown by the first air injection exposure (11, 12) and the first air injection exposure (11, 12) to blow the weft leading to the clad pel by injecting air toward the weft yarn extending in the outward direction of the oblique column And a second air injection nozzle (14A) for injecting air in a direction intersecting with the air to guide the weft yarn to the towing device. In the insertion weft removal device of the weaving machine for traction removal of the insertion failure weft thread through the cylindrical suction injection pipe 23, the weft guide portion 25 is freely attached to the inlet of the suction injection pipe 23. And weft yarns based on the amount of swing against the biasing means 28 of the weft guide 25 and the biasing means 28 of the weft guide 25. Insertion weft removal device for a loom, characterized in that a tension detector (30) for detecting the tension is provided. Weft insertion length detecting means 110 for detecting the weft insertion length every time weft insertion, traction removal means 130 for traction removal of the weft insertion failure when the weft insertion failure occurs and the loom stops, and the insertion failure being pulled out. The removal length detecting means 112 for detecting the removal length of the weft yarn, and the determining means for comparing the detected weft insertion length and the detection removal length when the weft insertion failure occurs, and determining whether or not the removal processing of the insertion failure weft is successful. Insertion weft removal device of the loom, characterized by comprising (113).