SU479835A1 - A device for a multi-weaving loom to prepare a weft thread before laying into the base of the shed - Google Patents

Description

1tn and hold the cut ends. The latter is made in the form of a lever 5 mounted on an axis 6 with the possibility of a swinging door, carrying it along with it (Fig. 2).

The knife 4 is fixed so that it can be adjusted in the housing 7, connected by means of the plate 8 to the stationary part of the machine, and installed in a spring-loaded bracket 9, also located on the housing 7. The bracket 9 has a slot 10 (Fig. 6) in which it is free the blade / knife enters 4.

Lever 5, at its free end, carries a fork 12 to grip the thread. The distance between the horns 13 and 14 of the fork corresponds to the width of the slot 10 of the bracket 9. The working surface of the horns of the fork 12 faces the bracket. tK 14 plug attached attachment 15, ra; bocha (surface 16 of which is located 1pr; imerno in the middle zone of the fork, and forms with the working surface of the cone | at an angle of not more than 90 ° (fot. 8 n 9).

The device is also equipped with a rammer, located in the zone of action of the lever 5 and made in the form of a gripper 17, which is fixed to the slider 18, set in motion along the groove 19 by means of the rod 20 and the lever 21. The gripper consists of a fixed sponge 22 and a spring-loaded sponge 23. open the gripping jaws in its extreme positions. On the plate 8 are located the rollers 24 and 2-5, with which the rod of the spring-loaded sponge 23 interacts.

The plate 8 also carries a roller 26, which serves to open the grippers 27 of the charging device / located on the transport belt 28 near each weft package 29.

When moving the plotter 2 from the charging device 1 to the fabric-forming mechanism 3, the thread going from the package 29 to the charged plotter 2 falls on the horns 13 and 14 of the plug 12 and is fixed by the process 1.5. At this time, the lever 5 moves to the left, moving the thread and pressing it to the bracket 9. Because the bracket is spring-loaded, the further movement of the lever is accompanied by the movement of the bracket and the thread that is in the tensioned state in the area between the horns of the fork 12 is cut. the blade of the knife is L1, the ends of which are formed and remain pressed with a fork to the bracket.

In this position, the lever 5 stands up until the end of the thread belonging to the package 29 is intercepted by the grip 27 of the feeding transparter 28, and the end of the thread belonging to the plotter 2 is not intercepted by the grip 17 of the rammer. For this, the grip 27, when approaching the end thereof, is opened by the roller 26, and the thread takes up a position between the jaws. Passing the roller 26, the catch, catching the thread, closes. The other end of the thread is likewise captured by the grip 17 of the rammer by means of the roller 24.

As soon as the clamps 17 and 27 grab the ends of the thread, the lever 5 is deflected to its original position. With its further movement, the gripper 27 rammer brings the end of the thread into the groove

plotter 2. Having reached its extreme right position, the grip 27 is opened by the roller 25, releasing the end of the thread, stands, and then returns to its original position. Threading the thread into the groove of the plotter ensures the fixed position of the end of the thread, which is necessary to trap it before earning in the edge of the fabric, and also prevents the weft from the plotter as a result of entanglement, or hooking it.

end for. side parts when transporting the plotter to the batch.

To ensure a soft contact between the staples 9 and the fork: 12 and to evenly distribute the pressing force between the arms. And 13 and 14

plugs can be provided on the bracket 9 elastic element 30, made for example of spring steel (Fig. 7). The presence of an elastic element contributes to a more efficient pressing of the weft yarn with a fork and

holding its ends after cutting.

Subject invention

Claims (3)

1. The device to the weaver weaving station. I need for the preparation of specified Iiti before laying into the base of the shed, containing a thread cutting mechanism, made in the form of a knife, located between the plotter charging device and the fabric-forming furs of low stakes, .and: .mechanism of trapping them and holding the cut ends, different there, that, in order to improve its design, complete in v1id a lever installed with the possibility of oscillating motion between the interplay device and the plotter charging device and the cloth-forming mechanism of the machine and carrying the fork to grip the thread, while the knife of the cutting mechanism is enclosed in a spring-loaded bracket with a groove for the passage interacting with the fork. 2. The device according to claim 1, characterized in that, in order to prevent entanglement end of them, it is equipped with a rammer located in the zone of action of the lever. 3. The device according to claim 1, characterized in that the bracket is provided with an elastic element. 7. 24. FIG. 1. 26 25 Fig 2 ig.Z Fy thirty FIG. 7