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Control method of printing machine winding tension based on segmented function curve

A technology of tension control and segmental function, which is applied in the directions of winding strips, thin material handling, transportation and packaging, etc., can solve the problems of high core wrinkle rejection rate, and achieve the effect of solving core wrinkle and convenient operation and adjustment

Active Publication Date: 2016-05-18
SHAANXI BEIREN PRINTING MACHINERY
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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 provide a printing machine winding tension control method based on a segmented function curve, which solves the problem that the existing tension control method will cause high reject rate caused by core wrinkle in the winding process, and effectively improves the winding tension. Roll Tension Accuracy and Yield

Method used

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  • Control method of printing machine winding tension based on segmented function curve
  • Control method of printing machine winding tension based on segmented function curve
  • Control method of printing machine winding tension based on segmented function curve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] According to the data of tension partition in the first row of Example 1 in Table 3, the parameters are selected as follows, TS=650, DS=200.0, TE=350, DE=820.0, as follows Image 6 The piecewise function control curve of the tension shown can achieve the control effect of the attenuation of the tension curve.

Embodiment 2

[0082] According to the data of the tension partition in the second row of Example 2 in Table 3, the parameters are selected as follows, TS=650, DS=200.0, TE=350, DE=820.0, as follows Figure 7 The piecewise function control curve of the tension shown can achieve the control effect of the linear attenuation of the tension.

Embodiment 3

[0084] According to the data of tension partition in the third row of Example 3 in Table 3, the parameters are selected as follows, TS=650, DS=200.0, TE=350, DE=820.0, as follows Figure 7 The piecewise function control curve of the tension shown can achieve the control effect of the linear attenuation of the tension.

[0085]

[0086] table 3

[0087] from Image 6 , Figure 7 and Figure 8 It can be seen that the variation law of the tension segment curve can be adjusted at any time according to the needs of the actual application, and the tension attenuation area of ​​each segment can be adjusted at any time according to the actual needs. Segment curve, the display is intuitive and clear, and the operation is simple; the set value is the initial diameter, tension, end diameter, tension and the tension of each segment endpoint, and it is easy to control the entire tension decay process.

[0088] Therefore, the segmented curve taper tension control method of the presen...

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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.

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

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H23/195B65H26/08
Inventor 王兰兰田峰练大伟
Owner SHAANXI BEIREN PRINTING MACHINERY
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