Control method for yarn ballooning size of straight twisting machine

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

Active Publication Date: 2013-06-12
ZHEJIANG RIFA TEXTILE MACHINERY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 the shape of the balloon cannot be optimal, and to provide a method for controlling the size of the yarn balloon of the direct twisting machine, which can effectively save energy consumption, noise reduction

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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  • Control method for yarn ballooning size of straight twisting machine

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0014] 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 19, 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 strand of yarn is drawn from the outer yarn package 13 as an outer yarn 16, 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 16 and the inner yarn 5 are twisted into a ply yarn 8 in the leveling...

Embodiment approach 2

[0015] Embodiment 2: On the basis of Embodiment 1, a ply yarn sensor 10 is installed on the ply yarn path between the overfeeding device 9 and the twist leveler 7 to detect any one of the two parameters of ply yarn speed and ply yarn tension Or both detect, and the ply yarn sensor 10 is connected with the control system 17, and the detection result of the control system 17 outer yarn sensor 14 and the detection result of the ply yarn sensor 10 is arbitrarily combined into at least two control parameters to control the motor connected with the overfeeding wheel According to the tension value of the outer yarn to meet the requirements of the best shape of the outer yarn balloon, the variable speed movement is performed to adjust the pulling speed of the ply yarn.

Embodiment approach 3

[0016] Embodiment 3: On the basis of Embodiment 1, a motor sensor 18 is set on the spindle drive motor 19 to detect any one or both of these two parameters, the motor speed and the motor current, and the motor sensor 18 is connected to the control system 17 The detection result of the outer yarn sensor 14 and the detection result of the motor sensor 18 of the control system 17 are arbitrarily combined into at least two control parameters to control the motor connected with the overfeed wheel according to the tension value of the outer yarn to meet the best shape of the outer yarn balloon. It is required to make variable speed movement and adjust the pulling speed of ply yarn.

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Abstract

The invention discloses a control method for a yarn ballooning size 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 straight twisting machine is characterized in that an external yarn sensor is arranged in a yarn path between a twisting tray and an external yarn tensioner and used for detecting an external yarn linear speed and yarn tension; a strand yarn sensor is arranged in a yarn path between an overfeeding device and an even twisting device and used for detecting a strand yarn linear speed and tension; or/and a motor sensor is arranged on a spindle drive motor and used for detecting a motor speed and motor current; the 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; and by taking one, two or three detection results of the three sensors as separate or combined control parameters, a control system controls a speed of the motor connected with the overfeeding wheel, adjusts a strand yarn pulling speed, and ensures that an external yarn tension value meets a requirement of the optimum yarn ballooning shape capable of allowing a wrapping angle to be minimum.

Description

technical field [0001] The invention belongs to the technical field of textile machinery, and in particular relates to a method for controlling the size of a yarn balloon 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H13/10D01H1/20
Inventor 蔡国辉张超马少华
Owner ZHEJIANG RIFA TEXTILE MACHINERY TECH CO LTD
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