Method and apparatus specially adapted for measuring weft yarn in circular loom

A technology for circular looms and measuring methods, which is applied in circular looms, looms, textiles, and papermaking, and can solve problems such as increasing yarn, jamming and disconnection, and increasing assembly line costs

Inactive Publication Date: 2003-08-13
L G L ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] This known system of measuring the length of the weft thread used for each introduction, although sufficiently reliable, significantly increases the complexity of the construction of the textile line by inserting the weft thread guide and said measuring device...

Method used

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  • Method and apparatus specially adapted for measuring weft yarn in circular loom
  • Method and apparatus specially adapted for measuring weft yarn in circular loom
  • Method and apparatus specially adapted for measuring weft yarn in circular loom

Examples

Experimental program
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Embodiment Construction

[0018] start referencing figure 1 , the designation MC generally designates an electronic circular loom, while the designation SI designates the amount of weft yarn (in cm) used to introduce the weft yarn F into the loom MC and to loosen it on each drop to form the knitted fabric. know the system.

[0019] The system SI generally consists of a weft thread guide P with a fixed drum TA, on which a fishing spool-like support is wound with a plurality of turns of the yarn F, which is released from the yarn axis RO and constitutes a yarn reserve RT, which support is composed of a The motor MO associated with the rotating disc VO placed at the base of the drum is driven.

[0020] At the end of the drum TA, the thread guide P comprises a terminal thread guide ring GA, which is associated with an output sensor SU, which is usually able to provide a pulse signal SUP according to an electronic voltage, as long as the unwound weft thread F surrounds the thread One full turn of the thre...

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Abstract

A method for measuring the use of weft thread (F) inserted in textile machines by means of weft feeders (P), especially electronic circular knitting machines (MC), which consists in using the output sensor (SU) of the weft feeder (P), by sending its pulses (SUP) to a functional logic block (CQT), which also receives synchronization signals (SYNC) generated by the textile machine (MC). The logic block (CQT) is programmed to calculate the quantity (Qt) of weft used between two successive synchronization signals (SYNC0-SYNC1) by taking into account the circumference (C) of the drum (TA) of the feeder (P), the number (N) of pulses (SUP) emitted by the output sensor (SU) of the feeder (P) between one synchronization signal and the next, and a time correction factor.

Description

technical field [0001] The present invention relates to a method and a device for measuring the use of weft threads introduced into textile machines, in particular electronic circular looms, by means of weft thread guides. Background technique [0002] As is well known to those of ordinary skill in the art, during the weaving process the weft yarn is usually introduced into the textile machine through a weft yarn guide, which is a multi-turn having a fixed drum and which rotates in the manner of a fishing spool and which forms a weft yarn reserve A device for the support of the yarn winding on the drum; at each insertion of the weft, when requested by a weaving machine, loom or knitting machine, etc., the coils of yarn are removed from the drum in a controlled manner Unwind. [0003] According to the standard configuration of a textile line, a yarn guide is inserted between the spool of the weft yarn and the weaving machine and has an output yarn guide loop, which is associ...

Claims

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Application Information

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IPC IPC(8): D04B15/48H04L27/26
CPCD04B15/482H04L27/2601D04B15/486
Inventor P·泽浓尼L·格蒂G·佩德里尼
Owner L G L ELECTRONICS
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