SU116321A1 - Weft Cutter to Automatic Loom - Google Patents

Description

Known intersectors of the weft yarn to an automatic weaving machine for cutting the weft yarn near the eye of the shuttle, equipped with a drummer and a rotary knife that crosses drinking, pressed against the metal bar of the shuttle mounted on the front wall of the shuttle.

In order to trim the weft yarn around the bobbin holder, in the weft yarn interceptor made according to the invention, the metal bar is mounted on the yarn holder, and the drummer is made in the form of a double-arm lever installed on the front cheek; one shoulder of this lever bears the set screw, and the other is spring-loaded and equipped with a spring plate that interacts with an adjustable striker, a lever mounted on the two-shoulders mounted on the machine shop and connected to a shaft mounted on the receiver axis.

FIG. 1 shows a general view of the weft yarn interlace, top view; in fig. 2 - the position of the crossbar when changing shpuly (cut in the plane of the rotary knife).

On the front box t of the right shuttle box there is an ldarnk 2, made in the form of a two-armed lever turning on axis 3. The drummer 4 is fixed on a rotary knife 4 that crosses the thread. In the cheek / there is a window 5 for the passage of the knife 4.

One shoulder of the striker 2 bears the set screw 6, and the other shoulder is affected by the spring 7 and is equipped with a spring plate 5, which interacts with the adjustable striker 9 during the operation of the cross-bar. The hammer is fixed on the two-arm lever 10 mounted on the dump store (in the drawing not shown) of the loom and connected to the pull 11 mounted on the axis 12 of the receiver-head.

On the crawler 13 of the shuttle 14 is mounted a metal strap 15, which enters the window 16 of the shuttle 14.

No. 116321-2 -

The work of the descaler is as follows.

During the period between shifts, the bobbin 9 does not come into contact with the spring plate 8 fixed to the hammer 2, which, under the influence of the spring 7, is deflected together with the rotary knife 4 into the inside of the jaws J.

At the time of the change in the shuttle 14, the pins 17 are rotated; the axis 12 of which, with the pitch 11, is moved, turning the double-arm lever 10 in such a way that the firing pin 9 strikes the spring plate 8 and the striker 2 with a rotating knife 4 strikes the metal bar 15 the shuttle 14, pressing against it and intersecting at the same time the weft thread, which at that time is located on the front wall of the shuttle 14. The waste weft shank 17 with the filling, departure from the shuttle 14, doesn’t have the end of the thread crossed by the intersector, and removes it from the shuttle.

Subject invention

Claims (2)

1. A weft thread interrupter to an automatic weaving machine, equipped with a drummer and a rotary knife that crosses the thread pressed against the metal bar of the shuttle, tl and h and y; and in order to trim the weft thread around the bobbin holder of the shuttle, the drummer is designed as a double-arm lever mounted on the front cheek of the right shuttle box, one shoulder of which carries a set screw, and the other is spring-loaded and equipped with a spring plate that interacts with an adjustable striker a lever mounted on a double-arm mounted on the bobbin shop of the machine and connected to a rod mounted on the axis of the receiver-latch. 2. The interceptor according to claim 1, of which is the metal bar of the shuttle mounted on the crawler.