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Intelligent constant-tension yarn feeding method for knitting machine

A knitting machine, constant tension technology, applied in the directions of knitting, weft knitting, warp knitting, etc., can solve the problem of difficulty in reducing the variation of yarn tension, and achieve the effect of reducing the variation of yarn tension

Active Publication Date: 2020-02-21
NINGBO CIXING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to reduce fluctuations in yarn tension during high-speed knitting

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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  • Intelligent constant-tension yarn feeding method for knitting machine
  • Intelligent constant-tension yarn feeding method for knitting machine
  • Intelligent constant-tension yarn feeding method for knitting machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This embodiment includes a yarn feeding motor 1, the yarn feeding motor drives the driving wheel 2, and the driving wheel and the driven wheel 3 cooperate to extract the yarn from the yarn bobbin 11; it also includes a swing rod 6, and the end of the swing rod is provided with a spring 10 With the angle sensor 9, the spring 10 is used to manually adjust the tension value of the swing rod, and the angle sensor 9 is used to measure the deflection angle of the swing rod. The yarn is sent out from the yarn feeding motor, passes through a pressure sensor 5, then passes through the yarn wheel 8 and the ceramic ring 7 at the end of the pendulum in turn, and finally the yarn is fed by the yarn guide nozzle 12.

[0027] The swing rod 6 can be manually adjusted to a suitable position matching the preset tension value, and the force equal to the preset tension value is applied to the front end of the swing rod, which is opposite to the direction of the adjustable torsion force give...

Embodiment 2

[0033] This embodiment includes a yarn feeding motor 1, the yarn feeding motor drives the driving wheel 2, and the driving wheel and the driven wheel 3 cooperate to extract the yarn from the yarn bobbin 11; it also includes a swing rod 6, and the end of the swing rod is provided with a torque The generator 14, the torque controller 13 and the angle sensor 9, the torque generator 14 applies a variable torque to the swing rod, and the angle sensor 9 is used to measure the deflection angle of the swing rod. The yarn is sent out from the yarn feeding motor, passes through a pressure sensor 5, then passes through the yarn wheel 8 and the ceramic ring 7 at the end of the pendulum in turn, and finally the yarn is fed by the yarn guide nozzle 12.

[0034] The swing rod 6 can be electrically adjusted to a suitable position matching the preset tension value, and the force equal to the preset tension value is applied to the front end of the swing rod, which is opposite to the direction of...

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

The invention discloses an intelligent constant-tension yarn feeding method for a knitting machine. The method involves a yarn feeding motor, a pressure sensor and a freely-rotating swing rod, the yarn feeding motor is used for supplying yarns, the pressure sensor is used for detecting the tension of the yarns, and the yarns are sent to a knitting machine body after passing through the yarn feeding motor, the pressure sensor and the swing rod. The method involves two modes namely a learning mode and a copy mode; under the learning mode, closed-loop control of the pressure sensor and the yarn feeding motor is realized, and optimal parameters of the yarn feeding motor are acquired on the basis of a constant tension of the yarns; under the copy mode, the yarn feeding motor initiatively feedsthe yarns according to the optimal parameters stored under the learning mode so as to complete knitting. The method has advantages that yarn tension changes in a knitting process are reduced, initiative yarn feeding and tension constancy in a yarn feeding process are realized, and accordingly high-speed knitting or knitting with yarns which are not firm can be carried out.

Description

technical field [0001] The invention belongs to the technical field of knitting machines, in particular to an intelligent constant tension yarn feeding method for a knitting machine. Background technique [0002] The yarn feeding device in the knitting machine is the key component to ensure the quality of the fabric. According to the yarn feeding requirements of different parts of the fabric, different tissues and the knitting speed of the machine, the yarn feeding is performed in different degrees, but only by controlling the yarn supply It cannot meet the requirements of the current market for fabrics, and it is necessary to ensure that the tension during the yarn feeding process is constant. During the high-speed weaving process, it can reduce tension changes, ensure that each fabric meets the process requirements, and greatly improve the fabric quality. [0003] At present, when the knitting machine is supplying yarn, it is necessary to obtain the yarn demand of each kni...

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 Applications(China)
IPC IPC(8): D04B15/44D04B27/12
CPCD04B15/44D04B27/12
Inventor 孙平范徐卫东李立军胡跃勇张亚妮
Owner NINGBO CIXING
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