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A textile yarn tension control device

A technology of tension control and thread yarn, which is applied in the field of textile yarn tension control equipment and tension control error control equipment, and can solve problems such as yarn agitation, tension, and yarn breakage

Active Publication Date: 2019-04-12
SHANDONG HUALUN CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Yarn tension control is a major problem or difficult problem in textile mills or textile workshops. Especially when restarting after shutdown, accidents are prone to occur. Many control systems focus on starting at a low speed. This kind of control is easy and requires the coordination of the tension at both ends of the yarn. In particular, it is easy to cause the tension to be too small when starting up, causing yarn agitation, and the slow starting speed is also a problem. How to further improve it? Start-up quality is a major control problem in this field

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A textile yarn tension control device, which includes a yarn take-up and release device with a shaft that drives the yarn to move, the yarn take-up and take-off device rotates according to the shaft, and the shaft is driven by a motor to rotate, and the control device include:

[0013] a detection unit for detecting the angular velocity of the shaft;

[0014] a control unit for increasing a control value for controlling the driving of the shaft from an initial value to a fixed value at a predetermined increase rate when the motor starts driving the shaft,

[0015] Wherein, the control unit detects the start-up characteristic of the shaft based on the detection result of the detection unit, and corrects the initial value or the increase rate according to a comparison result between the detected start-up characteristic and a predetermined start-up characteristic, so that The start-up characteristics of the shaft are brought closer to the predetermined start-up characteri...

Embodiment 2

[0020] A textile yarn tension control device, which includes a yarn take-up and release device with a shaft that drives the yarn to move, the yarn take-up and take-off device rotates according to the shaft, and the shaft is driven by a motor to rotate, and the control device include:

[0021] a detection unit for detecting the angular velocity of the shaft;

[0022] a control unit for increasing a control value for controlling the driving of the shaft from an initial value to a fixed value at a predetermined increase rate when the motor starts driving the shaft,

[0023] Wherein, the control unit detects the start-up characteristic of the shaft based on the detection result of the detection unit, and corrects the initial value or the increase rate according to a comparison result between the detected start-up characteristic and a predetermined start-up characteristic, so that The start-up characteristics of the shaft are brought closer to the predetermined start-up characteri...

Embodiment 3

[0028] The present invention provides a textile yarn tension control method different from the previous embodiment, which is applied to the control of yarn tension during stable and continuous rotation. , the yarn receiving and unwinding device rotates according to the shaft, and the shaft is driven by a motor to rotate: the control device includes:

[0029] a detection unit for detecting the angular velocity of the shaft;

[0030] A control unit, in particular for controlling the drive control value of the shaft according to the detected angular speed so that the angular speed is substantially equal to the target angular speed value when the motor continues to drive the shaft.

[0031] Furthermore, the control unit detects the angular velocity of the shaft during continuous driving, and increases the control value if the detected angular velocity is less than the target angular velocity, and increases the control value if the detected angular velocity is greater than the targ...

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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PUM

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Abstract

The invention mainly provides tension control equipment of spinning threads and yarns and belongs to textile machinery. The tension control equipment is particularly suitable for tension control at an equipment restarting phase in a starting or back-to-work process, and can be used for effectively avoiding broken yarns or falling yarns in a starting-up process; the tension control equipment comprises a thread and yarn reeling and unreeling device for driving the threads and yarns to move and is provided with a shaft, and further comprises control equipment for detecting an angle speed of the shaft and controlling the movement of the rotary shaft; and particularly, tension is controlled through a starting property of the starting-up process.

Description

technical field [0001] The invention relates to the field of textiles, in particular to a textile yarn tension control device, in particular to a control device for precisely controlling the rotational speed of a driving motor to prevent tension control errors during start-up when the yarn is retracted and unwound. Background technique [0002] Yarn tension control is a major problem or difficult problem in textile mills or textile workshops. Especially when restarting after shutdown, accidents are prone to occur. Many control systems focus on starting at a low speed. This kind of control is easy and requires the coordination of the tension at both ends of the yarn. In particular, it is easy to cause the tension to be too small when starting up, causing yarn agitation, and the slow starting speed is also a problem. How to further improve it? Start-up quality is a major control challenge in the field. [0003] On this basis, the inventors conducted repeated experiments and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H59/38
CPCB65H59/384B65H2701/31
Inventor 刘慧
Owner SHANDONG HUALUN CHEM FIBER