CN114000256A

CN114000256A - Short-stroke integrated composite latch needle

Info

Publication number: CN114000256A
Application number: CN202111505803.9A
Authority: CN
Inventors: 吴济宏; 郑小号; 赵仲; 张新斌; 朱三童; 周橙; 蔡映杰; 陈志鹏; 蒋慧
Original assignee: Taiju Textile Shanghai Co ltd; Wuhan Textile University
Current assignee: Taiju Textile Shanghai Co ltd; Wuhan Textile University
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-02-01

Abstract

The invention discloses a short-stroke integrated composite latch needle, which is mainly used for a weft knitting circular knitting machine and belongs to the technical field of textile machinery. By adopting the technical scheme, the invention combines the structural characteristics of the compound needle and the latch needle, the needle core and the latch form a whole, the needle core makes linear motion in the needle groove of the compound needle, the latch movably arranged at the front section of the needle core is matched with the needle body to open and close the needle opening in the processes of looping and looping, the needle core makes limited motion in the needle body, the ascending motion of the needle body is reduced, the running speed of the circular knitting machine can be improved, the stroke of a knitting needle is reduced, the size of a needle cylinder occupied by one looping system is reduced, more looping systems can be arranged on the same cylinder and the needle cylinder, and the yield of the knitting machine is improved.

Description

Short-stroke integrated composite latch needle

Technical Field

The invention relates to a short-stroke integrated composite latch needle, which is mainly used for a circular weft knitting machine and belongs to the technical field of textile machinery.

Background

The production efficiency of the existing circular weft knitting machine is concerned, and common methods for improving the production efficiency comprise the steps of improving the running speed of the machine, using a bidirectional motion sinker, improving a latch needle and the like. As in application No.: 201610531507.9, publication date: 20160907, the title of the invention is a head assembly of flat knitting machine, which solves the problems of heavy head and slow running speed of flat knitting machine; as in application No.: 201120239124.7, publication date: 20120307, the invention is named as a bidirectional movement sinker for weft knitting, and the technical proposal solves the problem of large stroke of knitting needles; as in application No.: 201010588708, publication date: 20110427 entitled short-stroke latch needle of high-speed warp knitting machine, which solves the problems of long latch needle movement time and low mechanical movement efficiency. In conclusion, the technologies have some problems, the missed stitch and the wrong stitch are easily caused by increasing the speed of the machine, the looping process is complicated by using the bidirectional sinker, the latch needle with short stroke does not have fundamental change on the latch needle, and the stroke reduction of the latch needle is limited.

Disclosure of Invention

In view of the above-mentioned deficiencies of the prior art, the present invention provides a composite latch needle capable of simultaneously opening and closing the needle opening with the latch and making the needle core move up and down relatively in the needle body, which is used for solving the problem of high lift stroke of the backing ring of the knitting needle, achieving the purpose of reducing the stroke and the stroke of the knitting needle, and improving the production efficiency.

In order to achieve the purpose, the technical scheme of the invention is as follows: a short-stroke integrated composite latch needle comprises a needle body of the composite needle and a needle core movably arranged in a needle body groove, wherein a needle latch is arranged at the front end of the needle core, and the needle latch is hinged with the needle core through a needle latch pin.

By adopting the technical scheme, the invention combines the structural characteristics of the compound needle and the latch needle, the needle core and the latch form a whole, the needle core makes linear motion in the needle groove of the compound needle, and the latch movably arranged at the front section of the needle core is matched with the needle body to open and close the needle opening in the process of looping and looping, so that the stroke of the needle body is reduced, the running speed of the circular knitting machine is improved, the stroke of the knitting needle is reduced, the size of the needle cylinder occupied by one looping system is reduced, more looping systems can be arranged on the same cylinder through the needle cylinder, and the yield of the knitting machine is improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an exploded view of the present invention;

Detailed Description

The present invention is described in further detail below with reference to the attached drawing figures.

A short-stroke integrated composite latch needle is formed by combining a needle body 1 of the composite needle, a needle core 2 movably arranged in a groove of the needle body 1 and a needle latch 3, wherein the needle latch 3 is arranged at the front end of the needle core 2, and the needle latch 3 is hinged with the needle core 2 through a needle latch pin 4.

The needle bar side of the needle body 1 is milled with a needle groove, the needle core 2 of the needle latch 3 is embedded into the needle groove to do linear motion, the needle latch 3 can rotate around a needle latch pin 4, and the movable end of the needle latch can be matched with a needle hook on the needle body.

The invention relates to a short-stroke integrated composite latch needle working process which comprises the following steps: when the needle body 1 and the needle core 2 are lifted from the low position to the highest position during the loop withdrawal, the relative lifting speed of the needle core 2 is higher than that of the needle body 1, and the old loop is firstly moved to the latch 3 from the hook and then moved to the needle rod to complete the loop withdrawal. When a new yarn is padded under the hook, the needle body 1 and the needle core 2 descend together, the relative descending speed of the needle core 2 is higher than that of the needle body 1, and the latch 3 is turned upwards to close the needle opening under the action of the old loop. The needle body 1 and the needle core 2 are kept further down until the old yarn and the new yarn are looped and bunched. The needle core 2 does limited movement in the needle body 3, and is matched with the needle body 1 to open and close the needle opening, so that the ascending stroke of the needle body 1 is reduced, the running speed of the circular knitting machine can be improved, the stroke of a knitting needle is reduced, the size of a needle cylinder occupied by one looping system is reduced, more looping systems can be arranged on the same cylinder of a warp needle cylinder, and the yield of the knitting machine is improved.

Claims

1. The utility model provides a compound latch needle of short stroke integration, includes that body of the needle (1) and activity of compound needle place nook closing member (2) in body of the needle (1), its characterized in that: the front end of the needle core (2) is provided with a needle latch (3), and the needle latch (3) is hinged with the needle core (2) through a needle latch pin (4).