SU626707A3 - Shutless loom rapier take-up gripper - Google Patents

Description

in fig. 4 - receiving gripper in which the longitudinal spike is placed on the hook, longitudinal section; in fig. 5 - turning sponge; in fig. 6 - receiving gripper with weft yarn, top view.

The pick-up grip has a fixed pointed sponge 2 with a hook 3 fixed on the foil 1 and the pivoting sponge 5 pivotally mounted on it with the help of axis 4, spring-loaded spring 6 towards the locked position of the gripper. One end of the spring 6 rests on the stud 7, and the middle part - in the adjusting screw 8. The end of the rotary jaw 5 has a surface 9, and the hook 3 - the inner surface 10, which under the influence of the spring 6 is normally pressed against one another so that between them a slotted gap narrowing towards the edges of the fixed sponge 2. The swivel sponge 5 has a figured protrusion 11, which interacts with the roller 12 fixed on the bed of the loom during the operation of the gripper. The longitudinal spike 13 is located on the swiveling sponge 5 (Fig. 1 and 2) or on the inner surface of the hook 3 (Fig. 4), and the longitudinal groove 14 for it is respectively on the inner surface of the hook 3 (Fig. I and 2) or on the swivel sponge 5 (Fig. 5).

The longitudinal groove 14 can be made in the form of a through slot (see FIG. 2).

On one side of the hook 3, there is a brake made in the form of a flat spring 15 fixed on the fixed sponge 2 with the help of axis 4.

Capture works as follows. The take-up rapier 1 with the grip passes into the middle of the loom of the weaving machine towards the feeding rapier, which carries the weft thread 16. The weft thread slips along the outer surface of the hook 3 of the receiving rapier 1 and when it moves back, it falls into the slotted gap between the inner surface 10 of the hook 3 and a surface 9 of the turning jaw 5. Due to the narrowing of the gap gap, the weft thread is clamped securely between these surfaces. The entanglement effect created by the longitudinal pinch 13 and the groove 14 for it, which are located on the adjacent gripping surfaces, contributes to the reliable gripping and holding of the weft yarn.

When the rapier leaves the pharynx, the shaped protrusion 11, interacting with the roller 12, opens the grip and releases the weft thread, which is straightened, remaining braked by the spring 15.

The application of this invention allows to extend the technological capabilities of the weaving machine. It makes it possible, without changing the design of the device, to process weft threads, different in thickness and structure.

Claims (3)

1. The pickup of the rapier of a jerky loom, containing a fixed pointed sponge with a hook rigidly attached to the rapier and a pivotal spring-loaded sponge pivotally mounted on it, the end of which has a surface that is adjacent to the inner surface of the hook so that between them a slotted gap is formed, tapering into the side of the point of the fixed jaw, characterized in that, in order to expand the technological capabilities, one of the mating surfaces is made with a longitudinal pinch, and the other with a longitudinal groove for pinch. 2. The grip according to claim 1, characterized in that the groove for the pinch on one of the mating surfaces is made in the form of a through slot. 3. The grip according to claim 1, characterized in that one of the sides of the hook has a weft brake made in the form of a flat spring fixed on a fixed sponge. Sources of information taken into account in the examination: 1. Patent of Germany No. 1785467, cl. 86 From 14/01, 1971. 2 paz. g R five one R -Jtf (rig 5