Method for controlling external yarn tension of straight twisting machine

A technology of tension control and direct twisting machine, which is applied to spinning machines, continuous winding spinning machines, textiles and papermaking, etc. It can solve the problems that the tension control of the outer yarn cannot be accurately controlled, and the shape of the balloon cannot be optimal. , to save energy consumption and reduce noise

Inactive Publication Date: 2013-06-12
浙江日发纺织机械股份有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the hysteresis braking outer yarn tension control of the existing direct twisting machine cannot be accurately controlled and t

Method used

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  • Method for controlling external yarn tension of straight twisting machine

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Embodiment approach 1

[0011] Implementation mode one: if figure 1 As shown, the direct twisting machine of the present invention includes the spindle 2 installed on the frame, the spindle drive motor 10, the leveling device 7, the overfeeding device 9, the outer yarn tensioner 15, the inner yarn tensioner 6 and the winding device, the winding device is mainly composed of a winding roller 11 and a yarn bobbin; one of the yarns is drawn from the outer yarn package 13 as the outer yarn 14, and is guided by a plurality of yarn passing wheels on the spindle twisting disc 1 and The axis of the spindle 2 is deflected in an approximately vertical direction, and is introduced into the leveler 7 through the periphery of the spindle at the edge of the twisting disc 1, and another strand of yarn is drawn out from the inner yarn package 3 in the spindle 2 as the inner yarn 5, and the same Introduced into the leveling device 7, the outer yarn 14 and the inner yarn 5 are twisted into a ply yarn 8 in the leveling ...

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Abstract

The invention discloses a method for controlling external yarn tension of a straight twisting machine, and belongs to the technical field of textile machinery. The problems that external yarn tension control is not accurate, and an optimum ballooning shape cannot be reached exist in the existing straight twisting machine. The method is characterized in that a motor sensor is arranged on a spindle drive motor and used for detecting a motor speed and motor current; an external yarn tensioner is driven by a separate motor to feed yarns actively; an overfeeding wheel of the overfeeding device is driven by a separate motor; by taking a speed of the motor sensor and/or the motor current as control parameters, a control system controls the speed of the motor connected with the overfeeding wheel, adjusts a strand yarn pulling speed, and ensures that a tension value of an external yarn meets a requirement of the optimum yarn ballooning shape capable of allowing a wrapping angle to be minimum; energy consumption is saved; and noise is reduced.

Description

technical field [0001] The invention belongs to the technical field of textile machinery, and in particular relates to a method for controlling the outer yarn tension of a direct twisting machine capable of saving energy consumption and reducing noise. Background technique [0002] Direct twisting machine is a kind of textile machine mainly used to directly combine two yarns into ply yarns, twist them into cords, and wind them into parallel bobbins. When combining and twisting, two strands of yarn are respectively introduced from two yarn packages, one of which is installed in the rotating spindle, and the other strand of yarn passes through the twisting disk of the spindle and passes outside the spindle , and then the two strands of yarn are merged into the twist leveler to form an inner yarn and an outer yarn, and the outer yarn will form a balloon during the rotation of the spindle. Before the yarn is introduced from the twisting disk to the balloon, the outer yarn is ...

Claims

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Application Information

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IPC IPC(8): D01H13/10D01H1/20
Inventor 蔡国辉张超马少华
Owner 浙江日发纺织机械股份有限公司
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