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Automatic cotton sliver homogeneity regulating process for blowing-carding-drawing unit

An automatic adjustment and carding technology, which is applied in fiber opening and cleaning machines, deburring devices, textiles and papermaking, etc., can solve the problems of inaccurate signals, unsatisfactory detection accuracy, and easy reversal of speed tracking, etc., to achieve detection signal Accurate, uniform length of sliver, scientific management

Inactive Publication Date: 2005-08-24
解伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of speed tracking is controlled by the pulse number (speed) tracking of the proximity switch. The speed tracking is easy to reverse, the signal given is not accurate enough, and the detection accuracy is not satisfactory.

Method used

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  • Automatic cotton sliver homogeneity regulating process for blowing-carding-drawing unit
  • Automatic cotton sliver homogeneity regulating process for blowing-carding-drawing unit
  • Automatic cotton sliver homogeneity regulating process for blowing-carding-drawing unit

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Embodiment Construction

[0026] In the invention, the cotton box and the carding machine are all brought into the control range, and the large closed-loop automatic leveling is realized. The cotton box adopts setting tracking and air pressure control, so that the cotton layer entering the carding machine is uniform and constant, and can be adjusted. It adopts the hybrid leveling method of the short-segment control of the feeding roller and the long-segment control of the sliver output.

[0027] like figure 1 As shown, the present invention adopts "five inspections and two controls". The displacement detection point 15 and the pressure detection point of the lower cotton box are the pressure sensor 1. "Two controls" means that two controllers, that is, the controller 12 and the controller 13, respectively control the cotton feeding motor 17 of the carding machine and the cotton feeding motor 11 of the cotton box. The controller can be a variable frequency drive, or a DC drive or a servo drive.

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Abstract

In the present invention a computer controls the cotton feeding motor of the carding machine via the controller, and the speed signal the computer feeds to the cotton feeding motor is preset. The method adopts speed setting and speed modification, rather than speed tracking. The displacement detecting point of the cotton feeding roller in the carding machine is determined based on mechanical position. The persent invention can solve the problem of distraction to raise the working precision and working efficiency of the plant.

Description

1. Technical field [0001] The invention relates to a method for automatically adjusting the evenness of cotton sliver, in particular to an automatic adjustment method for controlling the evenness of cotton sliver in a blowing-carding unit. It is mainly used in the pre-spinning equipment in the cotton spinning industry. 2. Background technology [0002] At present, the control method of blowing and carding equipment in the world generally adopts the method of speed tracking (proximity switch). This kind of speed tracking is controlled by the pulse number (speed) tracking of the proximity switch. The speed tracking is easy to reverse, the signal given is not accurate enough, and the detection accuracy is not satisfactory. 3. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the above-mentioned existing methods, and provide a brand-new automatic adjustment method for the evenness of the blowing-carding sliver. The displace...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01G9/14D01G15/36D01G23/06
Inventor 侯国庆解伟
Owner 解伟