SU1327793A3 - Feeding grip of weft thread to shuttleless loom - Google Patents

Abstract

The invention relates to weaving machinery and improves the reliability of grip operation. The gripper comprises a weft yarn clamp and means for opening the clamp placed on the elongated box-shaped housing, one clamping surface of the clamp is placed on the housing, and the other on a rotating clamping element whose axis is located along the gripping housing. 4 il. WITH S

Description

The invention relates to textile manufacture and is intended. for use on high-speed weaving machines

The purpose of the invention is to increase the reliability of work.

Fig. 1 shows the capture of s isometry; in fig. 2 - front end of the grip, side view; in fig. 3 - section A-A in FIG. 1. (when the weft clamp is in the position of its holding) -; in fig. 4 is the same, but the weft clamp is in the opened position.

The gripper comprises an elongated box-shaped body 1 made of plastic, connected at its rear end 2 with a rapier, which controls its movement (not shown). The body 1 has a shaped end 3} The elements 4 and 5 are located on the bumper, protecting the warp from falling into the grip as well as the gripping surface 6, with which the element interacts with a pointed metal head 7 fixed on a long metal rod 8, which is mounted so that it can be rotated parallel to the axis of the housing T by means of two protruding the top of the blocks 9; At the other end of the rod 8, the lateral protrusion 10 is reinforced. The spring 11 interacts with the lower part of the protrusion 10, while the element 12 opening the grip fixed on the loom can act in the opposite direction to the upper part of said protrusion.

The pointed head 7 is mounted on the pin 8 so that the protrusion O, on which the spring 11 acts, is located on the side opposite to the location of the oblique head 7, and the said protrusion 10 is installed on the same side with which the weft thread 13 is fed in capture;

In the operation process, the thread 13 presses the pointed head 7 against the surface of the body 1 when the grip is in the holding position (Fig. 3). In this position, any action that is intended to force the thread to move away from the direction of its supply to the grip and further to the fabric being made, occurs against the action of the spring 11, and it tends to lift the end 277323

Rennuyu head 7 from the saddle. Therefore, sliding in this case is facilitated. In contrast, any action that aims at sliding the yarn 13 in the direction of its feeding direction is added to the action of the spring 11, while the pointed head 7 presses more tightly against 10 of the surface 6, increasing the reliability of holding the yarn 13 in the grip. Therefore, the slip in this case becomes more difficult or even impossible .:

1C-.

The invention improves the reliability of the capture. In addition, the proposed grip prevents the yi significantly reduces yarn losses (which occur if the thread slides back from the direction of its feed) and prevents or significantly reduces the breakage of the yarns.

Capture also contributes to another important goal. Due to the specific design and shape of the retaining element, which is subject to small movements relative to the base, even if a thick weft is inserted into it, it is possible to exclude the use of any additional elements in the grip intended for wiring yarn, and thereby eliminate the danger - yarn filament with the formation of loops, thus reducing the overall dimensions of the grip and simplifies its design.

Formula of invention

40Pumping weft yarn to

shuttleless weaving machine containing a weft thread clamp placed on a profiled front end extension box, one clamp on the surface of which is located on the front of the case, and the other on a metal clamping element mounted with gQ that can be rotated relatively parallel to the base of the case axis and spring-loaded in the direction of clamping the thread, and the means of opening the clamp, which is fixed on the axis of the clamping

gg. of the element lever, characterized by the fact that, in order to improve reliability of operation, the axis is located along the grip body, the lever is located at the end of the axis on the feed side

filled in the form of a pointed head, rigidly mounted on the opposite

the opposite feed of the weft yarn.

L

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ig. one

Aa

Aa

Rig. 2

9U8.3

(Reg. 4

Editor N. Kishtulints

Compiled by N. Furazhkin

Tehred L. Oliynyk Proofreader M. Pojo

Order 3398/58 Circulation 424 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (1)

The formula of the invention is a stupa. 40 The pointed head 7 is mounted on the pin 8 so that the protrusion 10, on which the spring 11 acts, is located on the side opposite to the location of the pointed head 7. 45 Wherein said projection 10 usta- _v Credited the same side from which the weft thread 13 supplied to the nip ·., In the process of operation, the thread 13 is pressed by the pointed head 7 to the surface of the housing 1 when the grip is in the holding position (Fig. 3). In this position, any action that is aimed at forcing the thread to move away from the direction of its feed to the grab and then to the fabric to be fabricated takes place against the action of the spring 11, and it seeks to raise the sharpening grip of the weft yarn to the shuttleless loom, containing a weft thread clamp located on an elongated box end body having a profiled front end, one clamping surface of which is located on the front of the housing and the other on a metal clamping element; installed with the possibility of rotation relative to the axis parallel to the base of the body and spring-loaded in the direction of the clamp of the thread, and means for opening the clamp having a lever fixed on the axis of the clamping element, characterized in that, in order to increase the reliability of operation, the axis is located along the body capture, the lever is located on the end of the axis from the supply side of the lever to the end of the axis and is spring-loaded to the side of the weft threads, and the clamping element is made in the entrance of the pointed head, opposite to the weft feed A-A <Riga. 4