Printer rolling tension control method based on piecewise function curve

A tension control, piecewise function technology, applied in the direction of winding strip, thin material handling, transportation and packaging, etc., can solve the problem of high core wrinkle rejection rate, and achieve the effect of solving core wrinkle and convenient operation and adjustment
CN103662932AActive Publication Date: 2014-03-26SHAANXI BEIREN PRINTING MACHINERY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SHAANXI BEIREN PRINTING MACHINERY
Publication Date
2014-03-26

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Abstract

The invention discloses a printer rolling tension control method based on a piecewise function curve. When rolling of a printer is conducted, tension control is achieved according to the following steps that the rolling diameter D has following circumstances: the rolling tension is controlled; when the rolling diameter D is smaller than or equal to DS, the rolling tension T is equal to TS; when the rolling diameter D is greater than or equal to DE, the rolling tension T is equal to TE; when the rolling diameter D is smaller than the DE and greater than the DS, the rolling tension is controlled according to a functional expression F=(Fi+Fi+1) / (Di-Di+1)*D+Fi-(Fi-Fi+1) / (Di-Di+1)+Di. The printer rolling tension control method solves the problem that the rolling center crinkles cause the high rejection rate in a rolling process in an existing tension controlling method, and effectively improves accuracy and the rate of finished products of rolling tension.
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Description

technical field

[0001] The invention belongs to the technical field of printing machinery and control, and relates to a method for controlling winding tension of a printing machine based on a segmented function curve. Background technique

[0002] The winding taper tension of the existing unit type printing machine is mainly based on the linear decrease of the linear function. Linear tension taper control is relatively stable in principle, and the tension value decreases with the increase of winding diameter. For some normal process printed products, this kind of taper control can meet the requirements of printed products, but for some printed products with special process requirements There are still some deficiencies in using this linear tension taper control, such as problems such as winding core wrinkle. In order to further improve the precision of winding tension taper control and reduce the reject rate caused by winding core wrinkle, we propose a piecewise function co...

Claims

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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