JPH0118625Y2 - - Google Patents

Description

[Detailed description of the invention] (Technical field) This invention is incorporated into a multi-shuttle automatic loom that stores shuttles in multiple shuttle boxes and weaves a woven fabric with a weft striped pattern using multiple types of weft yarns. It is attached to an automatic shuttle box changing device that automatically moves the specified shuttle boxes to the position where the shuttle can be launched in a predetermined order, and automatically changes the loom when the shuttle box changing order is different from the preset order. This invention relates to an emergency stop device that stops the vehicle automatically.

(Background Art) When weaving a woven fabric having a weft striped pattern, weft yarns 2, 2 are woven at right angles to a large number of parallel warp yarns 1, 1, as shown in an enlarged view in FIG. When weaving the weft yarns 2, 2 at right angles to the warp yarns 1, 1 in this way, the weft yarns are passed through a shed formed by pulling the warp yarns 1, 1 in an alternating vertical direction, and after weft beating, the weft yarns 1, 1, The work of pulling yarn 1 in the opposite direction and threading the weft yarn 2 through again is performed continuously. In this way, in order to pass the weft thread 2 between the warp threads 1 and 1, the weft thread 2 is held by a shuttle;
The yarn is housed in shuttle boxes provided on both sides (or one side) of the weft, and during weft insertion, it moves within the shed in a direction perpendicular to the warp, and is housed in the opposing shuttle box.

In the case of a multi-shuttle loom that changes the wefts to different colors, as shown in Figure 2, multiple shuttle boxes 3, 3 stacked one above the other are moved up and down by an appropriate amount to shuttle the desired shuttle box. move it to the surface. In this way, in order to automatically move and exchange multiple shuttle boxes in order to weave cloth with a predetermined weft striped pattern, conventionally, three to five shuttle boxes were used.
The mechanism shown in the figure was incorporated into an automatic loom.
That is, a program chain 6 is stretched around a sprocket 5 fixed to a shaft 4 which rotates in conjunction with the movement of the automatic loom sending out warp yarns, and circular pieces 7 are detachably attached to the program chain 6. When exchanging the four shuttle boxes 3, 3 stacked one on top of the other as shown in Figure 2, these pieces 7, 7 should be used in pairs on only one side of the warp (separately on the shuttle boxes on both sides of the warp). When making a movement, a set of four pieces is used), and depending on the presence or absence of this piece 7, it is determined which shuttle box to move to the shuttle sliding surface. That is, when selecting four shuttle boxes 3, 3 based on a pair of pieces located on the left and right sides of the program chain 6 (FIG. 4), for example, when there are pieces on both the left and right sides, the topmost shuttle box is selected. of,
If there are pieces only on the left side, use the second shuttle box from the top, if there are pieces only on the right side, use the third shuttle box from the top, and if there are no pieces on both the left and right sides, use the bottom shuttle box. move it to the surface. The presence or absence of the left and right pieces 7, 7 of the program chain 6 is transmitted to the shuttle box controller (not shown) via the lever 8, wire 9, crank 10, and rod 11 as shown in FIG. A shuttle box controller moves the stacked shuttle boxes up or down by an appropriate amount as shown in FIG. 12
This is a tension spring for bringing one side of the lever 8 into elastic contact with the program chain 6.

The conventional automatic shuttle box exchange device is configured as described above, but when weaving a weft striped pattern different from the one weaved up to that point, program chain 6 is used to change the order in which the shuttle boxes are automatically exchanged. The arrangement of the pieces 7, 7 attached to both sides of the board must be changed. To change this arrangement, remove the pin 13 (see Figures 4 and 5) at the end of the shaft of the program chain 6 and remove or insert the pieces 7, 7 from the shaft of the chain 6. This work not only stains the worker's body and clothes due to oil adhering to the program chain 6 and the pieces 7, but also makes it troublesome to arrange the pieces 7 accurately to weave the desired weft striped pattern. This work is disliked by workers because it is extremely time-consuming. The weft striped pattern of cloth woven by automatic looms is
Currently, the product is changed to a different one every two or three days, so having to perform the above-mentioned troublesome work each time greatly reduces work efficiency and causes the price of the product to rise. .

In order to eliminate these inconveniences, the inventor of the present invention first made simple improvements to the conventional device.
We devised an automatic shuttle box exchange device that made it possible to change the latitude stripe pattern easily and quickly (Utility Application 1983-
No. 130628). The previously devised automatic shuttle box exchange device is
In the conventional device, a rotary plate 14 is fixed in the middle of a shaft 4 provided with a sprocket 5 for spanning a program chain 6, and detecting elements 15 are provided at equal intervals on the periphery of this rotary plate to detect detection parts. Based on the signal, a solenoid 17 is driven in a predetermined order by a controller 16, and this solenoid 17 directly drives a crank 10, which is also incorporated in a conventional device, via a wire 9.

To explain in more detail the automatic shuttle box changing device devised earlier, the shaft 4 (in the conventional device, the sprocket 5 for the program chain 6 was fixed) rotates in conjunction with the delivery of the warp of the multi-shuttle automatic loom. ) has a rotating plate 1 as shown in Figure 6.
4 is fixed. Detection parts are provided at equal intervals on the peripheral edge of the rotary plate 14, and a detection element 15 for detecting the presence of the detection parts is provided so as to sandwich a part of the peripheral edge of the rotary plate 14. Rotating plate 1
As a detection part to be provided on the peripheral edge of the rotating plate 14, for example, it is possible to form thick parts at equal intervals on the peripheral edge of the rotary plate 14 using bolts and nuts. Use a switch. Alternatively, a notch may be provided on the peripheral edge of the rotary plate 14 and a photoelectric switch may be used as the detection element 15, or a limit switch may be pushed by projections formed at regular intervals on the peripheral edge of the rotary plate 14. In short, it is sufficient if the detection element 15 emits a signal every time the rotating plate 14 rotates by a certain angle.

The signal from the detection element 15 is input to the controller 16, and the controller 16 energizes or de-energizes the solenoid 17 according to a predetermined order based on this signal. When the solenoid 17 is energized or de-energized, the crank 10 is oscillated via the wire 9, and the movement is transmitted via the rod 11 to the same shuttle box controller as the conventional device, so that the shuttle box is properly adjusted. be moved to a certain position.

Fig. 6 shows only the control part corresponding to one piece 7 of the conventional shuttle box changing device, but when four shuttle boxes are provided on each side of the warp, the control part as shown in Fig. 7 is shown. Four solenoids 17 are provided, and each solenoid connects to the crank 1 via a wire 9.
Make it possible to pull 0. This solenoid 17,
Reference numeral 17 is used to control the movement of two shuttle boxes stacked in four stages.For example, when both solenoids are off, the topmost shuttle box is controlled, and when only the left solenoid is off, the second one is controlled. A tiered shuttle box,
When only the right solenoid is OFF, the third stage shuttle box,
When both solenoids are ON, the lowermost shuttle boxes are moved to the respective shuttle sliding surfaces.

When changing the latitude striped pattern, change the contents of the program stored in the controller 16, and
What is necessary is to change the order and combination of energizing and stopping 7 and 17. Furthermore, if the controller 16 is provided with a memory capability, there is no need to re-input the program when weaving the same weft striped pattern as before after a power outage.

By the way, in the previously devised automatic shuttle box changing device constructed and operated as described above, since the crank 10 for controlling the shuttle box changing is driven by the solenoid 17 via the wire 9, cutting of the wire 9, Each crank 10, 1 may be damaged due to seizure of the solenoid 17 or disconnection of the current conductor to the solenoid 17.
0 may not operate according to the signal issued by the controller 16. Crank 10,10 like this
If the machine no longer operates as programmed in the controller 16, the shuttle cannot be launched, or even if the shuttle can be launched, it will not be possible to weave the desired weft striped pattern. .

(Purpose of the present invention) In view of the above-mentioned circumstances, the present invention detects immediately when the crank for controlling the shuttle box does not move as programmed in the controller 16, and controls the automatic loom. It is an object of the present invention to provide an emergency stop device for an automatic shuttle box exchange device that can be stopped and can be easily incorporated into automatic looms that have been widely used in the past.

(Structure of the present invention) The emergency stop device for an automatic shuttle box exchange device of the present invention is provided with a limit switch that is connected/disconnected by the swinging of the crank near the crank for controlling the exchange of the shuttle box. The signal is input to the controller that controls the crank drive solenoid, and compared with the solenoid control signal, and if the crank moves differently than the solenoid control signal, the controller sends a signal. This stop controller energizes an emergency stop solenoid fixed to the top of the loom only when it receives the above signal, and this solenoid activates the dropper bar of the warp stop device only when the solenoid is energized. The dropper is configured to drop one of the droppers that is engaged with the dropper.

(Function of the present invention) Since the emergency stop device for the automatic shuttle box changing device of the present invention is constructed as described above, if the crank does not operate normally for some reason, a limit switch installed near the crank will trigger a control. There is a mismatch between the signal sent to the engine and the program signal stored in the controller for controlling energization of the crank drive solenoid, and a signal is sent to the stop controller. The stop controller energizes the emergency stop solenoid based on this signal, so the solenoid operates, the dropper falls, and the warp stop device built into the automatic loom automatically stops the automatic loom.

(Embodiments of the present invention) Next, the present invention will be explained in more detail while explaining the illustrated embodiments.

In the emergency stop device for an automatic shuttle box exchange device of the present invention, as shown in FIG.
A limit switch 18 (only one is shown in FIG. 7, but only one is shown in FIG.
When there are a plurality of cranks 10, the number of cranks 10 is equal to the number of cranks 10. ) has been established. A signal accompanying the connection/disconnection of the limit switch 18 is input to the controller 16 for controlling the energization of the solenoid 17.
In this controller 16, the limit switch 18
The signal sent from the detection element 15 is compared with the program signal for controlling the energization of the solenoid 17, which proceeds based on the signal from the detection element 15, and if the two signals are different (the crank 10 is (If the location is different from where it is moving)
The stop controller 19 is activated to send a signal to the stop controller 19.

This stop controller 19 operates and energizes the emergency stop solenoid 20 only when a signal is sent from the controller 16. As shown in FIG. 8, this emergency stop solenoid 20 is a warp stop device (which automatically stops the automatic loom by dropping a dropper when the warp is cut), and is well known in the art, so a detailed explanation will be omitted. .) Dropper bar 2
It is fixed by a bracket 23 to a top rail 22 located above the rods 1 and 21, and the rod is configured to protrude when energized. That is,
At one end of this emergency stop solenoid 20, a ninth
As shown in the figure, a compression spring 24 is provided to provide elasticity in the direction of retracting the rod 25 at the other end. A hook 26 bent in an L shape toward the main body of the solenoid 20 is fixed to the tip of the rod 25, and a loop portion 27a (see FIG. 10) formed at the upper end of the wire 27 is attached to the hook 26. is hooked. This wire 27 is connected to the emergency stop solenoid 20.
A dropper 30 made of a thin plate is attached to the lower end of the support plate 28, either directly or through a thread 29, and hangs down through a through hole 28a drilled in the horizontal plate portion at the lower end of the support plate 28.
is hanging. This dropper 30 constitutes a warp stopping device and is the same as the dropper that inserts a large number of warp threads one by one.Another dropper is prepared in addition to the large number of droppers for inserting warp threads.
A large number of these droplets are attached to one end of the droplet bar. The warp stopping device works by inserting a large number of warps one by one through separate droppers, and automatically stops the automatic loom when any of the warp threads is cut and even one dropper falls. Even if the emergency stop solenoid 20 is not cut, if the dropper 30 suspended below the emergency stop solenoid 20 falls, it acts to automatically stop the automatic loom.

Since the emergency stop device for the automatic shuttle box exchange device of the present invention is constructed as described above, if any of the cranks 10 does not operate normally for some reason, the emergency stop device for the automatic shuttle box exchange device of the present invention will stop automatically based on the signal from the controller 16. and the stop controller 19 energizes the emergency stop solenoid 20,
Protrude the rod 25 and pull out the hook 26 from the loop portion 27a at the upper end of the wire 27.
The dropper 30 suspended from is dropped. When the dropper 30 falls, the warp stopping device is activated and the automatic loom is automatically stopped. At this time, the loop portion 27a at the upper end of the wire is connected to the through hole 28a of the support plate 28.
Since the wire 27 cannot pass through, the entire wire 27 will not fall to the bottom.
A and the hook 26 can be stopped easily.

(Effects of the present invention) The emergency stop device for the automatic shuttle box changing device of the present invention is configured and operates as described above, so that the automatic shuttle box changing device can be stopped due to wire cutting, solenoid seizure, disconnection, etc. If the automatic loom does not operate normally, the automatic loom can be stopped immediately, thereby preventing damage to the punched part of the shuttle or unknowingly producing a large amount of defective woven fabric. Moreover,
This emergency stop device can be installed on automatic looms that have been widely used without major modification, so equipment investment is low.

[Brief explanation of drawings]

Figure 1 is a partially enlarged view of the fabric showing the relationship between the warp and weft, Figure 2 is a perspective view of stacked shuttle boxes,
Figures 3 to 5 show a conventional automatic shuttle box exchange device. Figure 3 is a side view of the main parts, Figure 4 is a partially enlarged view of the program chain, and Figure 5 is a side view of Figure 4. Fig. 6 is a view similar to Fig. 3 showing the previously devised automatic shuttle box exchange device, Fig. 7 is a perspective view of the device with the emergency stop device of the present invention attached, and Fig. 8 is a view similar to Fig. 3. A perspective view of the emergency stop device, FIG. 9 is a side view of a main part thereof, and FIG. 10 is a perspective view of a wire. 1: warp, 2: weft, 3: shuttle box, 4: shaft, 5:
Sprocket, 6: Program chain, 7:
Piece, 8: Lever, 9: Wire, 10: Crank, 1
1: Rod, 12: Tension spring, 13: Pin, 1
4: rotating plate, 15: detection element, 16: controller, 1
7: Solenoid, 18: Limit switch, 1
9: Stop controller, 20: Emergency stop solenoid,
21: Drop bar, 22: Top rail, 2
3: Bracket, 24: Compression spring, 25: Rod, 26: Hook, 27: Wire, 27a: Loop part, 28: Support plate, 28a: Through hole, 29: Thread, 3
0: Droppa.

Claims (1)

[Scope of utility model registration request] A rotary plate 14 is fixed to a shaft 4 that rotates in conjunction with the delivery of warp yarns of a multi-shuttle automatic loom.
4, a detection element 15 is provided which outputs a signal every time the rotation plate 14 rotates by a certain angle.Based on the signal of this detection element 15, a controller 16 turns on and off electricity in a predetermined order. In the automatic shuttle box changing device, which is made up of a wire 9 connecting a solenoid 17 and a crank 10 that pushes and pulls a rod 11 connected to the shuttle box controller, an automatic changeover is performed when the crank 10 moves in a manner different from the desired movement. This emergency stop device automatically stops the loom, and is provided with a limit switch 18 near the crank 10 that connects and disconnects as the crank 10 swings, and a signal from the limit switch 18 is transmitted to the controller 1.
6, and this controller 16 inputs the above signal to the solenoid 1 which advances based on the signal from the detection element 15.
7. If a discrepancy occurs in both signals indicating that the crank 10 is not moving as expected when compared with the program signal for control, a signal is sent to the stop controller 19. Based on the signal from the controller 16, the dropper bar 2 of the warp stopping device
The emergency stop solenoid 20 that suspends the dropper 30 fixed above the dropper bar 21 and attached to the dropper bar 21 is energized, and the emergency stop solenoid 20 drops the dropper 30 when energized. Emergency stop device for automatic exchange equipment.