Improved apparatus and method for detecting broken pin hole and loom used together

A technology of knitting needles and hooks, applied in the field of circular knitting machines

Inactive Publication Date: 2002-10-23
MONARCH KNITTING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is disadvantageous because multiple sensors for detecting broken needles have to be installed, aligned and maintained in a knitting machine with multiple cams to reciprocate the needles accordingly

Method used

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  • Improved apparatus and method for detecting broken pin hole and loom used together
  • Improved apparatus and method for detecting broken pin hole and loom used together
  • Improved apparatus and method for detecting broken pin hole and loom used together

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Embodiment Construction

[0025] The invention will be described in more detail hereinafter with reference to the accompanying drawings, in which several preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to only illustrated embodiments; To those skilled in the art, these embodiments will fully convey the scope of the invention. Like reference numerals denote like elements in the various drawings.

[0026] Now refer to the attached figure 1 , and reference numeral 10 shows a part of cylinder 15 and cylinder cam 20 of cylinder type circular knitting machine 9 . Knitting needles 11 with hooks 12 and butts 13 are arranged in translational movement in the direction of a needle bar 16 in a needle channel 14 of a cylinder 15 of the knitting machine. Each needle 11 also includes a terminal end 17 at the end opposite to the end of said hook 12 . According to the first embodiment, the needle hook 12 ...

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Abstract

A device for detecting broken hooks of knitting needles. A knitting machine has a cam, which includes a needle starting cam, a loop forming cam, and a closing edge cam. A detector has a detector rising section, wherein the second triangular surface in the off-edge triangular portion is inclined away from the second triangular surface at the looping position. A detector butt descending section is followed by a detector butt ascending section, and a concave section is followed by a butt descending section. The concave section is formed such that the second cam surface is sufficiently spaced from the first cam surface so that the butt of a needle with a broken hook is pushed into the concave section by the detector butt descending section, but without damaging the needle The needle butt does not enter the concave section of the detector. A sensor recognizes the end of a needle whose butt is located in the concave section of the detector. The device may further comprise means for stopping the operation of the knitting machine after the sensor has been triggered. A method for detecting a broken hook and a needle for use with said device are also provided.

Description

technical field [0001] This invention relates to knitting machines, and more particularly to circular knitting machines using latch needles. More specifically, the invention relates to a system for detecting the hooks of knitting needles in a knitting machine when they are broken or otherwise disabled, and for stopping the machine to prevent the formation of fabric defects. Background technique [0002] In operation of a knitting machine, a knitting needle with a hook at one end reciprocates to pick up the yarn and pull the yarn into loops or various structures to form a knitted fabric. In general, knitting machines can be distinguished into two types: flat knitting machines and circular knitting machines. In these two kinds of knitting machines, all are provided with the device that is used to push knitting needle and do reciprocating motion. For example, in many knitting machines the needles are equipped with one or more butts which extend laterally from the middle of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04B35/10D04B35/18
CPCD04B35/18D04B35/10
Inventor 阿兰·古特施密特布鲁斯·M·波耐克保尔·W·约克
Owner MONARCH KNITTING MACHINERY
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