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Latch needle for circular knitting machine

A circular knitting machine and latch needle technology, applied in the latch needle field, can solve problems such as difficult processing

Inactive Publication Date: 2012-01-25
FUKUHARA NEEDLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to manufacture the latch needles of the aforementioned Patent Documents 1 and 2, protrusions or edges have to be formed in a small space called the inside of the hook, but such processing is technically difficult and special processing is required.
In addition, in conventional latch needles, it is difficult to stabilize the positions of the ground yarn and the plating yarn in the hook as intended.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Latch needle for circular knitting machine
  • Latch needle for circular knitting machine
  • Latch needle for circular knitting machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] figure 1 It is an overall view of the latch needle 7 of the first embodiment of the present invention. figure 2 is an enlarged view of its hook. image 3 It is a perspective view showing the knitting process using the latch needle.

[0024] Such as figure 1 As shown, the latch needle 7 of the present invention is also the same as the conventional latch needle, and is provided with a needle portion A, a shank portion 2, at least one stitch 1, and a needle rear end portion 16 as basic structural components.

[0025] Such as figure 2 As shown, the needle part A includes: a needle hook 5; a needle latch 6 for opening and closing the needle hook 5; a needle cheek 3 pivotally supporting the needle latch 6; a connecting part 4 connecting the needle cheek 3 and the needle hook 5 . The connecting part 4 is located slightly higher than the needle back 9 .

[0026] The present invention is characterized in that a recess 8 is provided between the connecting portion 4 and th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

Provided is a latch needle for a circular knitting machine, which has a relatively simple structure but can knit a double loop fabric stable in a fine gauge. In the circular knitting machine latch needle (7), a recess (8) is formed between a connecting portion (4) and a hook (5), and an angle (a), which is formed by the inner wall (10) of the hook (5) together with the upper face (11) of the connecting portion (4), is made less than 55 degrees. It is preferred that the radius (Rb) of a curve to form the recess (8) is made less than 0.25 mm, that the step (H) between the recess (8) and the upper face (11) of the connecting portion (4) is at least 0.03 mm, and that the radius (Ra) of the inner wall (10) of the hook (5) is at least 1.0 mm.

Description

technical field [0001] The present invention relates to a latch needle (hereinafter, simply referred to as "latch needle") used in a circular knitting machine. Background technique [0002] The hooks of conventional latch needles are roughly divided into three types: round hooks, exchange plating hooks whose center of the hook is close to the back of the needle, and plating hooks whose center of the hook is far away from the back of the needle. The present invention relates to exchange plating hooks therein. [0003] In the conventional exchange-plating hooks, it is difficult to knit a heavy warp knitted fabric (double ルルプ knitting) in a fine gauge of 28 gauge or 32 gauge or more. In order to solve such a problem, in the following patent documents 1 and 2, a latch needle having a hook of a novel shape is proposed. [0004] The latch needle of Patent Document 1 below has a structure in which a protrusion is formed in the hook and divided into a ground yarn and a plating yar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04B9/34D04B35/04
CPCD04B35/04
Inventor 福原裕司前西芳树井谷胜之楠本猛
Owner FUKUHARA NEEDLE
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