JPH0367128B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a weaving control method for a strawberry loom. More specifically, if one straw that was scheduled to be sent to the loom main body is not sent, instead of stopping the loom arbitrarily, when the loom is restarted, the first straw that is sent to the loom is not sent. This is the order in which the grasses are arranged when the loom is controlled by a pulse generator and a counter so as to stop when the grass is placed at the position of the dead grasses, and thereby weaving grasses etc. By creating a continuous combination of root-tip-root-tip..., it is possible to prevent color differences with other woven parts and eliminate the need for color correction work.

[Prior art and its issues]

For example, a strawberry loom is used to weave tatami mats, which are mats made of strawberry stalks woven with thread, and strawberries (hereinafter referred to as ``hare etc.''). The outline of this strawberry loom will be explained with reference to FIG. The straw grass G is placed on the feeding devices 20 and 20a arranged on both sides of the loom main body 10, and each time the warp threads T are stretched forward and backward by the twisting lever (not shown) provided on the front of the loom main body 10, first one side is loaded. Two pieces of rush grass G are fed in succession from the feeding device 20. Next, two pieces of rush grass G are fed in succession from the other feeding device 20a. And the strawberry G sent in
are sequentially pushed down by the reed 17, and the grass G is woven while tightening the grass G with a ground tightening lever (not shown). The reason why the above-mentioned feeding device 20 and feeding device 20a are arranged on the left and right sides of the loom main body 10 will be explained with reference to FIG. 7. The roots of the strawberry are white in color and thick in diameter. On the other hand, the panicles are darker in color and smaller in diameter. In this way, a single rush plant has different colors and textures depending on its part. Therefore, if the rush is fed from only one direction, the left and right parts of a single product will end up with completely different colors and qualities. For this reason, the locusts GL and GR are sent to the loom main body 10 alternately from the left and right in an orderly manner to achieve uniform color matching and quality of the locusts as a whole. In addition, at this time, the Ikusa GL and GR should be placed at the loom body 10 with the root part as the tip.
is fed into the warp threads T of. Since the grass is woven using the above-mentioned method, the straw grass G may not be caught during feeding, or the straw grass in the feeding device 20 and/or the feeding device 20a may become empty, and the warp threads T. If it is not fed in, the warp threads T will appear as spots on the surface of the grass, etc., or the straw grass G will appear as spots, which will occur. In this way, if even one rush of grass G is not fed in during feeding, damage from the rush of grass will occur, reducing the commercial value of the locusts and the like. As a countermeasure against this problem, a rice grass G empty sensor 50 is installed in the reed 17, and the empty rice grass G is detected by the sensor 50 and measured by a counter, and the number of rice grass G that is more than a preset number is detected in a certain period of time. When a G gap occurs, the weaving operation of the loom is automatically stopped and the cause of the gap can be inspected and repaired.
This has already been proposed in Publication No. 57-17986. This bulletin describes a system that prevents the loom from stopping unless the dry pricking of the rush occurs a predetermined number of times in a row, and if it does not occur a predetermined number of times in a row, everything is restored to normal from the middle. There is. According to this, the loom does not stop every time there is a single dry stitch, and the loom is on the verge of damaging the product. For example, the loom stops only after every four consecutive dry stitches, so the loom does not stop frequently and is on the verge of damaging the product. This has the effect of making it possible to weave it. According to this method, the problem of poor weaving efficiency can be solved by preventing the loom from stopping every time the loom is not fed. In order to continue the weaving operation, after weaving is complete, we inspect the empty spot and manually pull out the three grasses in front and back of the empty area due to non-weaving, and draw the upper and lower grasses into the gap that was pulled out. As already explained, this modification work requires a lot of effort. In addition, if you pull out other rushes at the empty hole in the rush, the upper and lower four rushes will be fed from the same direction, and the roots and tips of the rushes will be arranged in succession, and other There still remains the problem that the product value decreases because the color differs from the component parts. In order to solve these problems, the inventors of the present invention have developed a straw grass G empty sensor 5 provided in the reed 17 to detect when the straw grass G is not fed into the loom main body 10.
0 detects the non-injection and starts the straw feeding devices 20 on both sides.
By tilting the shielding plate 20a and stopping the feeding of the grass G that is subsequently fed after the generation of grass that is not fed without stopping the operation of the loom main body 10,
A loom and a method for preventing the shedding of straw due to non-loading have been proposed in Japanese Patent Publication No. 47946/1982 and Japanese Patent Application Laid-Open No. 26557/1982. This loom and method for preventing the weeds from falling out are as follows: After the occurrence of non-injected rushes, the feeding of the three successively introduced rushes G is stopped, and then the fourth one (the first one of the grasses etc. during weaving) is The feeding operation of the rush grass G is started again from the rush grass G of the rush grass G that is placed in the same place as the unexploded rush grass, and has the advantage that weaving can be continued without stopping the operation. There is. However, there are cases where the rush is not fed into the loom main body because the rush is running out or stuck in the middle, and in that case, it is necessary to stop the weaving operation. If the loom is stopped arbitrarily at this time, the arrangement and combination of the first rushes thrown in after weaving starts may be different from the order in which two grasses are thrown in from the left and right, and in this case, as already explained, There is a problem that the product's commercial value decreases due to scratches that are a different color from other woven parts. Therefore, instead of stopping the loom arbitrarily, the loom is stopped when the first straw that is thrown in after the loom is stopped, two on each side.
There is a need for a straw weed loom having a control device so that when the loom is restarted, the first rush that is thrown in is the same as the combination of the order in which it was initially thrown in. It is also possible to use a timer in this control device so that if the straw is not fed within a certain period of time, for example three or more times in 10 seconds, the loom can be stopped and the cause of the failure can be inspected and repaired. This method is effective if the weaving speed of the loom is set constant. However, the weaving speed of the loom is not always constant;
Even on the same loom, the weaving speed often changes depending on the quality of the locusts, etc. In other words, it varies depending on the quality, such as slow for high-quality locusts and fast for low-grade ones, and it also varies depending on the quality of the rush, so it is not constant. For this reason, each time the weaving speed is changed, it is necessary to set a timer to synchronize with the weaving speed, and this work is time consuming and troublesome to obtain the timing.

[Purpose of the invention]

Therefore, the object of the present invention is to avoid stopping the loom arbitrarily when a single straw that was scheduled to be sent to the loom main body is not sent, but to instead stop the loom arbitrarily, and instead of stopping the loom arbitrarily, the purpose of the present invention is to The loom is stopped at the point where the rush is placed in the position of the rush that was not originally sent, and this is the order of arrangement of the rush that is required when weaving a grass, etc....Root - Tip - Root - Ahead...
To provide a weaving control method for a strawberry loom that prevents color differences with other woven parts by creating a continuous combination of ..., and eliminates the need for work for color correction. . Another object of the present invention is to control the stopping of the loom using a pulse generator and a counter.
To provide a weaving control method for a strawberry loom that eliminates the need for troublesome timer setting work to synchronize the weaving speed with the weaving speed even when the weaving speed of the loom is changed.

[Structure of the invention]

The structure of the invention taken to achieve the above object is as follows. That is, the present invention uses a rush weed loom that alternately feeds two rush weeds to the loom main body from the rush supply devices disposed on both sides of the loom main body, and the rush weed loom has the following steps in the weaving operation: A control device equipped with a pulse generator that generates a pulse signal every cycle, a counter that counts the number of weaving operations of the loom based on the signal sent from the pulse generator, and a control device that senses the empty state of straw grass and performs the above-mentioned operation. a vacancy sensor that sends a vacancy signal to a control device, and when a vacancy condition occurs in which no straw is fed into the loom main body, the vacancy sensor detects this and the control device is activated. A signal is sent to the device, and the control device controls the loom so that it performs a blank beating operation for three rushes after the empty one, and the pulse generator performs a blank beating operation for three rushes. When the weeding signal is input to the control device, the idle beating operation is canceled, and after that, when the straw grass is fed into the loom body, the loom continues the weaving operation, and after the dry beating operation of the three straw grasses is completed, Furthermore, when the empty rush condition continues, the operation for supplying the rush grass that caused the continued empty condition is followed by the empty beating operation for three rushes, and the pulse generator generates the When a signal indicating that three straw weeds have been weaved dry is input to the control device, the counter counts the number of times the weaving operation is performed, and then the control device sends a stop signal to the weaving stop device, thereby causing the weaving to stop. This is a weaving control method for a strawberry loom, in which the weaving operation of the loom is stopped. In addition, in the present invention, the dry beating operation of rush grass means:
This is a state in which the supply of straw to the loom body is stopped while the loom continues to operate. Function/Effect By performing the stop control described above, when the loom is restarted, the first rush that is sent is placed in the position of the rush that was not sent initially, which is required when weaving grass, etc. This is the arrangement order of the irises...
……Because it is a continuous combination of root-tip-root-tip……, it is possible to prevent color difference with other woven parts,
Further, work for color correction becomes unnecessary. In addition, the loom's stop control is performed using a pulse generator and a counter, so even if the loom's weaving speed is changed depending on the quality of the grass or the properties of the grass, there is no need to synchronize it with the weaving speed. There is no need to set a timer.

[Example] The present invention will be explained in more detail with reference to Examples. Fig. 1 is a schematic front view of the loom, Fig. 2a is a schematic plan view of the weaving stop device, Fig. 2b is a schematic front view of the weaving stop device, and Fig. 2c is a schematic side view of the weaving stop device. 3 is a schematic diagram of the pulse generator, FIG. 4 is a front view of the supply stop device, FIG. 5 is a side view of the supply stop device, and FIG. 6 is a block diagram showing the flow of electrical signals. The loom main body 10 is used to weave strawberry G to produce a tatami cover, and has a known structure. That is, the straw grass G is placed on the feeding devices 20 and 20a arranged on both sides of the loom main body 10, and each time the warp threads T are stretched forward and backward by the threading lever provided on the front of the loom main body 10, one of the feeding devices is first fed. Two pieces of rush grass G are sent in succession from the device 20. Next, two pieces of rush grass G are fed in succession from the other feeding device 20a. The sent-in rush grass G is pushed down in sequence with the reed 17, and the rush grass G is woven while tightening the rush grass G with the ground tightening lever. The loom main body 10 includes a loom frame 12, and a weaving stop device 14 is provided at the bottom of the loom frame 12 to interrupt the transmission of power from a drive shaft 16 driven by a prime mover M to each working part of the straw weed loom. be. The weaving stop device 14 includes a solenoid 140 and a lifting rod 141 connected to the solenoid 140.
, a stopper 143 operated by the lifting rod 141, an actuating rod 144 whose movement is controlled by the stopper 143, and an actuating rod 144.
A clutch portion 147 is provided which connects and connects the driven shaft 145 and the drive shaft 16 with each other. The solenoid 140 is actuated by an electric signal from the control device S to actuate the clutch portion 147 to stop the weaving operation of the loom. Further, a main switch 15 is attached to the machine frame 12, and an actuation rod 144 is connected to the clutch portion 14.
7 to cut off power transmission, the power to the control device S is cut off. Conversely, when the actuating rod 144 actuates the clutch portion 147 to connect the power transmission, the power to the control device S is turned on. The loom main body 10 is provided with a pulse generator. The pulse generator consists of a pulse generating cam 42 and a proximity switch 44, as shown in FIG. The pulse generating cam 42 is an arbitrary rotating shaft 4 that rotates once every cycle of the weaving operation of the loom main body 10.
It is attached to 3. A proximity switch 44 is located at an arbitrary position on the machine frame 12 adjacent to the pulse generating cam 42.
is installed, and every cycle of weaving operation
Send ON and OFF pulse signals to the control device S. The reed 17 is equipped with a void detector 50 that detects a state in which the straw grass G is not fed between the warp threads T of the loom main body 10 (vacant state), converts this into an electrical signal, and sends it to the control device S. We are prepared. Vacancy detector 50
consists of a sensing lever 52 and a limit switch 54, and when the strawberry G is being normally sent to the loom main body 10, the sensing lever 52 is pushed and the limit switch 54 is kept in the OFF state. Conversely, when the rush grass G is not fed to the loom main body 10, the sensing lever 52 is not pressed, the limit switch 54 is turned on, and an electric signal is sent to the control device S. The control device S includes a counter (not shown). The counter starts counting when the pulse signal is ON and an ON electrical signal is sent from the emptying sensor 50 to the control device S to notify the emptying of rush grass G. If an OFF electric signal indicating the introduction of strawberry G is sent from the emptying sensor 50 to the control device S before the set time elapses, its operation will be stopped.
On the other hand, if the empty space sensor 50 continues to send an ON electric signal to the control device S, the counter is designed to continue counting. The supply device 20 and the supply device 20a supply straw grass G to the loom main body 10. Supply device 20
Since the supply device 20a and the supply device 20a have the same structure and are arranged in opposite positions, only the supply device 20 will be described, and a description of the supply device 20a will be omitted. Supply device 20
, a supply separation device 22 for supplying and separating rush grass G;
A needle stand 24 for sorting one separated rush grass G;
A feed roller 26 is provided for feeding the rush G separated by the needle stand 24 to the loom main body 10. The supply separation device 22 includes a supply gutter 220 and a piled straw grass G.
It has a pair of guide plates 224 that separate the. The pair of guide plates 224 are formed to become narrower toward the bottom, and the lower ends are formed to have a width that allows only one rush grass G to fall. A needle rest 24 is arranged at the lower end of the guide plate 224. The needle rest 24 is reciprocated by a crank mechanism, and pierces the rush G one by one with a needle 242 installed at the top, and transfers it to the feed roller 2.
Send to 6. The feed roller 26 includes an upper roller 260 and a lower roller 262 that rotate in contact with each other, and the needle rest 2
The straw grass G sent from 4 is sent to the loom main body 10 at a rapid speed. The supply stop device 30 blocks the feeding of the grass G from the feeding device 20 to the loom main body 10, and includes a blocking plate 32 that blocks the grass G fed by the feed roller 26 attached to the machine frame 12, and a needle stand. It is provided with a pull-down rod 34 that pulls down and fixes 24, and a solenoid 36 that operates these. To explain the structure in detail, a bearing 31 is attached to the machine frame 12.
There is a protruding bracket 120 provided with
A rotation shaft 37 is supported by the bearing 31 . A boss 320 provided at the bottom of the blocking plate 32 is fixed to one end of the rotation shaft 37. The boss 320 is provided with swing levers 322 and 324 on both sides.
One end of a coil spring 326 is attached to the swing lever 322, and the other end of the coil spring 326 is attached to a movable piece 360 of the solenoid 36.
On the other hand, a coil spring 328 is attached to the swing lever 324.
One end of the coil spring 328 is attached, and the other end of the coil spring 328 is attached to the machine frame 12. Further, a rotation arm 38 is attached to the other end of the rotation shaft 37.
The lower end of a pull-down rod 34 is pivotally connected to the distal end of the rotating arm 38. The upper end of the pull rod 34 is bent to connect the hook 3.
40 is formed. The hook 340 is arranged above the needle rest 24, and when pulled down, it hooks onto the needle rest 24 and pulls the needle rest 24 downward. The control device S operates the solenoid 36 based on a combination of the electric signal sent from the emptyness sensor 50 and the pulse signal sent from the pulse generator, and the solenoid 36 is actuated by the supply device 20 and the supply device 20a. Controls the input of strawberry G. Furthermore, the solenoid 140 is activated to activate the weaving stop device 14 to stop the weaving operation of the loom main body 10. Operation The pulse generator sends an ON/OFF pulse signal to the control device S for each cycle of the weaving operation of the loom main body 10. On the other hand, the supply device 20 and the supply device 20a feed the rush G between the warp threads T by passing the rush G between the contact rotations of the upper roller 260 and the lower roller 262. When the straw grass G is being normally sent to the loom main body 10, the emptying sensor 50 pushes the sensing lever 52 to keep the emptying sensor 50 in an OFF state. However, when the rush G is not fed between the warp threads T (rush grass empty state), the empty space sensor 5
0 senses this and turns on, converting it into an electrical signal and sending it to the control device S. When the pulse signal is ON, the air gap sensor 50
When an ON electric signal is sent to the control device S, the control device S determines that a shortage of strawberry G has occurred, sends an electric signal to the solenoid 36 to operate it, and pulls down the swing lever 322 to close the cutoff plate 3.
2 is activated to prevent the feeding of the rush grass G, and at the same time pull down the pull rod 34 to lower the needle head 24, a blank rush operation is performed, and a series of rush grass G scheduled to be fed after the empty rush grass is inserted. remove it At the same time, the counter of the control device S starts counting. The operating time of the solenoid 36 is set to the number of times that three rushes G are removed by a counter provided in the control device S, and when the number of times that three rushes G are removed is elapsed due to the three times of dry firing of the rushes. The solenoid 36 returns and the strawberry G moves to the loom main body 1.
Sent to 0. Empty sensor 50 even after three times of empty firing operation
If continues to be ON, control device S
A signal is sent to the machine, and following the operation of supplying the straw grass G that caused the continuation of the empty state, the operation of empty firing of three straw grasses is carried out. The signal from the pulse generator that performs the dry beating operation for these three straw grasses is sent to the control device S.
is input, the counter counts the number of these three dry beating operations, and then starts the weaving stop device 14.
An electrical signal is sent to a solenoid 140 that operates the clutch 14.
to stop the weaving operation of the loom.

【Effect of the invention】

The present invention has the above configuration and has the following effects. (1) When the loom is restarted, the first rush that is sent is placed in the position of the rush that was not sent initially, which is the order of arrangement of the rush that is required when weaving locusts etc. - Tip - Root - Tip... Since the combination is continuous, it is possible to prevent color differences with other woven parts, and there is no need for work for color correction. (2) Since the loom stop control is performed using a pulse generator and a counter, even if the loom's weaving speed is changed depending on the quality of locusts or the properties of the grass, there is no need to worry about synchronizing it with the weaving speed. There is no need to set a timer.

[Brief explanation of drawings]

Fig. 1 is a schematic front view of the loom, Fig. 2a is a schematic plan view of the weaving stop device, Fig. 2b is a schematic front view of the weaving stop device, and Fig. 2c is a schematic side view of the weaving stop device. 3 is a schematic diagram of the pulse generator, FIG. 4 is a front view of the supply stop device, FIG. 5 is a side view of the supply stop device, FIG. 6 is a block diagram showing the flow of electrical signals, and FIG. The figure is an explanatory diagram showing the arrangement of rush grass on tatami mats and logs. 10; Loom main body, 14; Weaving stop device, 20,
20a; supply device, 30; supply stop device, 50;
Vacancy detector.

Claims (1)

[Scope of Claims] 1. A straw grass loom is used which alternately feeds two straws of straw grass to the loom body from a straw feeding device disposed on both sides of the loom body, and the straw grass loom has a weaving operation. A control device equipped with a pulse generator that generates a pulse signal every cycle, a counter that counts the number of weaving operations of the loom based on the signal sent from the pulse generator, and a controller that detects the empty state of straw grass. a vacancy sensor that sends a vacancy signal to the control device, and when a vacancy condition occurs in which the strawberry is not fed into the loom main body, the vacancy sensor detects this and A signal is sent to the control device, and the control device controls the loom so that it performs a blank beating operation for three rushes after the empty one, and the pulse generator performs a blank beating operation for three rushes. When the signal from the weaving process is input to the control device, the idle beating operation is canceled, and after that, when the straw grass is fed into the loom body, the loom continues the weaving operation, and after the dry beating operation of the three straw grasses is completed. , When the empty rush condition continues, the operation to supply the rush grass that caused the continued empty condition is followed by the empty beating operation of three rush plants, and the pulse generator When the signal indicating that the three straw weeds have been dry-beated is input to the control device, the counter counts the number of times the dry-beating operation is performed, and then the control device sends a stop signal to the weaving stop device, which causes the weaving to stop. A weaving control method for a straw loom, characterized by stopping the weaving operation of a straw loom.