JPH02455Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention was devised to detect the open/closed position of the shuttle presser of a shuttle-type cloth loom using electrical signals, and to prevent accidents caused by starting with the shuttle presser foot open. The present invention relates to a safety device for a shuttle holder.

Conventional technology The shuttle presser foot in a shuttle-type narrow cloth loom is a part that has been equipped and installed since the time when the machine was developed. There are many types of shuttles, ranging from those that weave to a few dozen threads, and it is not uncommon for the number of installed and operating shuttles to exceed 100, depending on the number of machines that the worker manages. If you are busy running around and see if there is any thread left on the weft bobbin, immediately stop it manually, open the shuttle presser foot upwards toward you, take out the shuttle, and remove the weft bobbin. I replaced it, put it back in its original position, closed the shuttle foot, and started it up, but my attention had already been turned to other looms.

Under these circumstances, if you forget to close the shuttlecock holder when starting the machine, multiple shuttles attached to the sliding frame may come off all at once, causing damage to the threads and parts. In addition, the only way to reduce such losses was to rely on the attentiveness of the workers.

The problem that the invention aims to solve: Unlike the case where the loom stops due to a warp thread breakage or malfunction, a momentary human error can cause damage to multiple fabrics and parts and loss of time, which should be able to continue weaving without any defects. Therefore, it was necessary to solve this problem.

Means for Solving the Problems Explaining with reference to the drawings, the shuttle presser foot 5 is in a downwardly closed state and in a horizontally open state by means of a hinge 12 in the longitudinal direction of the lower surface of the shuttle slide 6 and splint 11 except for the lowest stage. It has a structure that allows it to be opened and closed 90 degrees, and each position is fixed with a spring.

In the present invention, a non-contact switch 1 (transmitter/receiver) is installed downward at the top of one end of the splint 11, and a non-contact switch 1 is installed below one end of the bottom shuttle slide table.
A reflecting mirror 2 is installed at a position to receive the projected light at the center of the plane, and a light blocking plate 3 is placed at one end of each shuttle holder 5 to block the projected light ray 10 (optical axis) when the shuttle holder 5 is open 3'. It is fixed with screws at position 3', and a warning light or buzzer is installed in a position that can be seen from any direction with respect to the loom.
By turning on the power, the non-contact switch 1 emits light from the so-called emitter/receiver and can be started while receiving light from the lower reflector 2, and the shuttle holder 5
By opening the light blocking plate 3 toward you, the installed light blocking plate 3 will be positioned horizontally, blocking the light emitting light 10, opening the circuit of the 3' start switch, and at the same time, the warning light will light up or the buzzer will sound. It was established.

Function Unlike the weft insertion method of a narrow width loom, which uses the shuttle blowing and flying or the pressurized jetting of air or water, the weft insertion method of the narrow width loom is different from the method of inserting the weft using the shuttle blowing and flying, or the method of inserting the weft using a pressurized jet of air or water.As shown in FIG. Or a shuttle that is transferred as it moves to the left, that is, a groove 13 is provided in the center of the surface of the shuttle slide 6 in the longitudinal direction, and the transfer plate 14 is fitted into the slide 6 freely and uniformly on the surface. Holes 17 into which pecks 16 are inserted are bored at both ends of the bottom of the shuttle 4, and vertical holes 15 are bored in the transfer plate 14 at the same dimensions and positions as the pair of holes 17 on the bottom of the shuttle, through which the pecks 16 can move freely up and down. A peg 16 is inserted, and a plate cam 18 is attached to one side of the groove 13 in the center of the sliding base 6, and a horizontal groove is cut in the lower part of the peck 16.
The plate cam 18 is slidably fitted into the cloth, and the peck 16 passes through the hole 15 of the transfer plate 14 inside the cloth, and after passing, it is inserted into the hole 17 of the shuttle and the shuttle is transferred according to the transfer plate 14. It is.

The structure and operation of the stile of the narrow width loom have been briefly described above, but like the wide width loom, the movement of the shuttle transfer plate 14 is 1/2 of the movement of the stile.

As mentioned above, the movement of the shuttle is coupled to and interlocked with the transfer plate 14 by inserting either one of the pair of pegs 16.

Therefore, when starting, there is no need to consider the angle of the crankshaft or the position of the stile, and after treatment, the user may press the start button while keeping an eye on other looms, which may cause trouble. However, by installing the device of this invention, if the worker forgets to close the shuttle presser foot when changing the weft, which is the main task, the start switch circuit will be opened at the same time as the warning light turns on or the buzzer sounds. This is what I did.

Effect: Due to the reduction in weaving defects due to problems, the percentage of non-defective products has increased significantly, and workers now have a sense of security.

Example: A contact switch is embedded in one end of the lower surface of the sliding base 6 except for the splint 11 and the lowest part, and the switch contact is pressed with the shuttle holder closed to make it possible to start, and with the shuttle holder open When we tried to obtain the desired effect of the device of the present invention by providing a circuit in which a warning light was lit or a buzzer sounded and the start switch was opened at the same time, we were able to obtain the same result.

[Brief explanation of the drawing]

Figure 1 is a side view of a stile equipped with the device of the present invention, with some related parts cut away. Figure 2 is a front view of a stile equipped with the device of the present invention, with some parts cut away. 3 is a front view of the AA cross section in FIG. 1. 1... Non-contact switch, 2... Reflector, 3 and 3'... Light blocking plate, 4... Shuttle, 5... Shuttle holder, 6... Shuttle sliding base, 7... Shuttle guide plate, 8... ...Crank rod, 9...
Guide shaft, 10...Light projection line (optical axis), 11
... splint, 12 ... hinge, 13 ... groove of sliding table,
14...Transfer plate, 15...Petsku vertical hole, 16...
Petsku, 17...Petsku hole, 18...Plate cam, 1
9...Weft bobbin, 20...Connecting plate, 21...Reed.

Claims (1)

[Scope of utility model registration request] The safety of the shuttle foot on a narrow cloth loom is detected by electrical signals, and if the loom cannot be started with the shuttle foot open, a warning light will light or a buzzer will notify you. Device.