JP2944259B2 - Injury prevention equipment for rush weaving machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weaving prevention device for a looms weaving machine, and is intended to improve quality, labor saving and productivity by preventing weaving of tatami mats, flower mats and the like (hereinafter referred to as "mats"). It was developed for the purpose.

[0002]

2. Description of the Related Art Conventionally, in order to weave a mat, for example, one worker works with four to five looms.
For this reason, the monitoring of one worker does not reach the entire machine, so if an unexpected accident such as a stab of rush stab A, two stabs B, or a stop D occurs, the loom is equipped with a sensor that can automatically stop. Provided. However, since this sensor is installed at the center of the rush, it has no choice but to detect the stab of rush by passing through this center or not. Unreachable rushes always stop on the way and cause weaving, so they need to be corrected.
In this case, since the loom itself is continuously operated without stopping, it can be corrected only at the inspection after weaving, which is troublesome twice. Further, when the machine is stopped only at the stop D halfway, the operator finds and repairs it so as not to damage the weaving. If the machine is not operated, weaving cannot be continued without stopping the loom. In addition, the correction was a difficult task for non-experts.

[0003]

SUMMARY OF THE INVENTION The present invention relates to an abnormal supply of rush to a fragment loom, that is, an empty stab A, a double stab B,
Alternatively, early detection of any stop D can be made, and operation control of the loom, removal of abnormal rushes, adjustment of operation restart timing, etc. can be automatically performed to prevent product weaving and improve productivity. It was completed as a result of consideration for the purpose.

[0004]

The means for solving the problem is as follows. That is, in a fragmentary loom that feeds one rush to the rush by the movement of the needle seat of the rush feeder from the left and right sides of the weaving surface of the loom main body, an abnormal empty stab A of the rush and two stabs near the end point of the rush feed lever 35. The ternary sensors 33 and 34 for detecting B and the normal single stab C are provided, and the sensors 1 and 2 for detecting the stop D on the way of the rush near the rush stops 3 and 4 which are the end points of the rush. In addition, there is provided a device for removing irregular rush in the rush which operates by detecting the two piercings B and the halfway stop D, and a control device for controlling the movement of the loom for one cycle of the removing device is provided. This is a weaving prevention device for a rush weaving machine.

[0005] The irregular rush removal device referred to here includes a cutter device for cutting irregular rush and cutting it apart from the rush, and a pulling device for pinching and pulling the irregular rush. Say. Also refers to reverse rotation or slow or stop of the operation which usually takes place from the control operation.

Further, a ternary sensor means that, for example, when an upper limit and a lower limit of a light amount are set in an optical sensor, it is assumed that the measured value is within the upper and lower limits and that the measured value is abnormal when the upper and lower limits are abnormal. It is a sensor that outputs a ternary judgment as a value. Therefore, if the single sting C of the rush is the standard light amount, the empty sting A and the double sting B can be taken out as the judgment outputs.

[0007]

When the stab A is detected by the ternary sensor provided near the end point of the rush feed lever, the control device is activated, and the weft supply for one cycle of the woven tissue following the stab A is stopped. Weaving is continued without stopping the loom or by automatically starting the loom automatically. Further, the double piercing B is also sensed, and the control device controls the movement of the loom for one cycle of the removing device, and operates the removing device for two cycles.
Remove the rush from the main stab. In the case of the single stitch C in the normal state, the operation of the loom is continued. Next, in the case of a halfway stop D which does not reach the rush stop even if it is a normal single stab, the halfway stop is sensed by a sensor provided near the rush stop which is the end point of the injection rush, and the control device detects the halfway stop. One of the devices for removing looms
The operation control during the cycle and the operation of the removing device are performed to remove the rush of D which stops halfway. By the cooperative operation of the sensor, the removing device and the control device, weaving can be resumed from the same rush as the irregular rush, and the continuous operation is automatically performed while preventing the weaving.

[0008]

EXAMPLE In the case of weaving a mat with a rush weaving machine, as shown in FIGS. 1 to 3, rushes 10 to be woven are placed on a supply device 9 from raw material receivers 11 arranged on both sides of the machine, and the rushes 10 are laid. Needle seat 19 is provided for taking out one needle. In order to inject the rush 10 between the opened warp yarns 5, the rush 10 is fed laterally between a pair of upper and lower rollers 7, 8 rotating at a high speed. 3 just below the rush 10
By installing value sensors 33 and 34, three types of stab A, two stab B, and normal single stab C, which become weaves of the mat during passage of the rush 10
Instantaneous sensing of types. Of these, in the case of A or B, the needle seat control solenoid seen at the upper left of FIG.
Needle seat control lever operated by 22 and operated by wire
The needle seat 19 is controlled by the spring 37 against the spring 38, and the timer and the pulse signal from the spindle are maintained so that the order of the weaving rush is kept normal.
The control device controls the woven tissue by a normal method such as inputting a signal so that the woven tissue is stopped for a time corresponding to three rotations of the machine four times per cycle. FIG. 2 is an operation side view of the rush weaving machine.
The warp yarns 5 are alternately opened before and after the cords 12 by the shedding shed, and the cords 12 move out of the weaving surface at the time of batting with the cords 15. The tamper 13 rotates the tamper-in / out cam 18 with the tamper pulley 16 from the motor 32 of this machine, tamps with the tamper crank 17, and fastens the fabric with the ground clamp 14 to obtain a product.

Here, the order of the weaving rush will be described as follows. The rush itself is the origin (moto) and the tip (back)
There is a difference in thickness between the base and the front, and also a difference in color, luster, and strength, resulting in unevenness. The non-uniform rush must be woven so that the woven surface of the product is uniform. For this purpose, weaving is carried out continuously with a total of four rushes, two consecutive from the left and two continuous from the right, as one cycle so that the fragmented rush is alternately exposed.

Next, the stop D on the way of the rush will be described. The rush 10 ejected by the upper and lower rollers 7, 8 shown in FIG. 1 or 3 must stop at a fixed position. Therefore, rush stops 3 and 4 for stopping the rush are provided at both ends of the rush 12 which is a passage of the injected rush. Just before the rush stops 3 and 4, separate sensors 1 and 2 are provided to detect the stop of the rush and stop the needle seat control solenoid 22 at the same time.
Act on the machine stop solenoid to control the needle seat control solenoid 22
Is controlled by the control device 31 to stop the needle seat portion for a predetermined time. The needle seat 19 moves between the point X and the point Y in FIG. 3 to send the rush 10 one by one between the upper and lower rolls 7, 8.
The details are shown in FIGS. 4 (a) and 4 (b). (a) is a needle seat
This shows the relationship between the needle cam 21 and the needle lever 20 when 19 is at the point X in FIG. 3, and the roller 41 is located at a lower position of the needle cam 21 and at the position where the ternary sensor 33 or 34 operates. Yes, (b) is a position that cannot be operated.

According to the present invention, when the rush at the stop D is driven halfway and stopped at the point when the boss 13 comes to the point K in FIG. 5A, the cutter motor 30 is started immediately afterward, and the rush which has stopped halfway is generated. 10 is cut short by a number of cutters 24 as shown in FIG. As shown in FIGS. 5 (a) and 5 (b), the cutter device has a cutter motor 30, a
Move the cutter vertical cam 28, and these are the cutter
25 、 Cutter on cutter stand 23 in conjunction with cutter vertical lever 26
The cutter device 24 is operated to cut and remove incomplete rush that has stopped halfway. Cutter motor after cutting and removing
30 is stopped and the motor 32 of the machine is restarted. In this case, the weft for one cycle of the weaving structure following the imperfect rush is a needle seat.
With the stop of 19, the weaving order is completed, the solenoid 22 that has controlled the needle seat is returned, and weaving is continued in normal operation. Instead of the cutter device, a device for picking and pulling irregular rush may be used.

In the case of the double stick B, the ternary sensor 33 or 34 is used.
, And the cutter device is operated by the same operation as the stoppage in the middle to remove two stabbing rushes and correct the weaving of the product 6. Although the present embodiment has been described with reference to a tatami facing loom as an example, a flower mat can also be used to prevent weaving with the same mechanism.

[0013]

According to the present invention, two punctures by a ternary sensor are used.
Three types of sensing, empty stab and single stab, plus a sensor that stops in the middle. In addition, four types of sensing can be performed at once, and each can be contacted with a solenoid as needed, and continuous operation can be performed if normal. If two stabs and an empty stab in the abnormal case stop halfway, the operation of the loom is automatically controlled, the abnormal rush is removed by the removing device, and the looms are returned to the normal state and the operation is restarted automatically. Workers can concentrate on supplying rush only to the feeder, work easily, can automatically weave high quality mats without any weaves, and save labor and improve productivity. Connect.

[Brief description of the drawings]

FIG. 1 is an overall front view showing an arrangement of a weaving prevention device provided on a rush weaving machine.

FIG. 2 is an operation side view of the rush weaving machine.

FIG. 3 is a side view of the rush feeding device.

FIG. 4 is a side view showing the operation of the needle seat, FIG.
3B is the position of the Y point in FIG.

5A and 5B are side views showing the operation of the cutter device, and FIG.
Is a normal position, and (b) is a cutting start position.

FIG. 6 is a partial perspective view of the cutter.

FIG. 7 is a timing chart of the rush weaving machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Detector 2 Detector 3 Rushi 4 Rushi 10 Rushi 12 Rise 19 Needle seat 24 Cutter 31 Controller 33 Tri-level sensor 34 Tri-level detector 35 Side feed lever

Claims (1)

(57) [Claims] 1. In a fragmentary loom that feeds rushes one by one by moving a needle seat of a rush feeder from the left and right sides of the weaving surface of a loom body, an abnormal stab A of rushes near an end point of a rush feed lever 35; A ternary sensor 33, 34 for detecting two piercings B and a normal one piercing C is provided, and a detector 1, which detects a stop D in the middle of the rush near the rush stop 3, 4, which is the end point of the injection rush. And a control device for controlling the movement of the weaving machine for one cycle of the removing device, which is provided with a device for removing rushes inside the rush, which operates by detecting the two piercings B and the stop D in the middle. A weaving prevention device for a rush weaving machine.