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Production line intelligent control method of spinning frame

A technology of intelligent control and spinning frame, which is applied in the direction of textiles and papermaking, can solve the problems of high yarn breakage rate, achieve the effects of reducing yarn breakage rate, increasing output, and simplifying the structure

Active Publication Date: 2012-11-07
EURA DRIVES ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an intelligent control method for spinning frame assembly line to solve the technical problem of excessive end-break rate during spinning doffing

Method used

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  • Production line intelligent control method of spinning frame
  • Production line intelligent control method of spinning frame

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Embodiment Construction

[0019] Such as figure 1 As shown, when the spindle 04 is running at a constant speed, the doffing reciprocates up and down with the ring plate 05 to wind the yarn. The intermediate yarn stage and the large yarn stage before forming a complete bobbin. The broken end distribution of the first doffing is the most in the small yarn stage, followed by the large yarn stage, and the least in the middle yarn stage. The spun yarn rotates at a high speed to form a balloon, and the height and shape fluctuations of the balloon at different spinning stages affect the size of the spinning tension. The tension of the balloon exceeding the limit of the yarn is the direct factor causing the number of broken ends of the spun yarn. The change characteristics of the balloon tension in the doffing are very important to control the smooth change of the spinning tension and reduce the breakage.

[0020] Such as figure 1 As shown, in the first doffing, the change of the spinning tension is the lar...

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Abstract

A production line intelligent control method of a spinning frame comprises the following steps: frequency reference values of all doffing stages and conversion data of corresponding frequencies and spindle speeds are stored in a spinning frame special frequency changer; during an initial process of doffing of the spinning frame, the frame special frequency changer determines initial lengths of all doffing stages based on a final spinning length, sets corresponding reference frequencies of all stages, and calculates corresponding output frequency data of the special frequency changer; the spinning frame performs a corresponding spinning action process according to the output frequency data of the set special frequency changer; a spindle drive motor dynamically adjusts the spindle speeds according to the frequencies and spinning lengths output by the special frequency changer; and when the spinning length or a set time is reached, the spinning frame performs doffing automatically according to the set action, and the scoffing process is completed. According to the production line intelligent control method of the spinning frame, the spinning end breakage rate can be reduced effectively, the working strength of knitters is reduced, and the yield is improved.

Description

technical field [0001] The invention relates to a control method, in particular to a control method for spinning frame spindle speed. Background technique [0002] The spinning frame is one of the most important processes in the preparation process before weaving. The task of the spinning frame process is to draft, twist and wind the semi-finished roving or sliver into spun yarn or bobbin. The main components of spinning frame include cradle, roller, ring plate, yarn guide hook, wire ring, spindle, negative pressure device and transmission and rotation device. The transmission device includes roller transmission, ring plate transmission and spindle transmission. Among them, the quality of the control of the front and rear rollers and the balloon ring at an appropriate speed is directly related to the overall quality of the spun yarn. The current mechanical start-up method with a clutch is slow and inefficient, and the yarn breakage rate is particularly high, and the instal...

Claims

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Application Information

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IPC IPC(8): D01H9/04D01H13/32
Inventor 林海光苏玉刘京建杨高孟
Owner EURA DRIVES ELECTRIC
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