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The Method of Improving the Tension Fluctuation During the Turntable Rotation of Karen Sai Coiler

A technology of coiling tension and coiling machine, which is applied in the direction of tension/pressure control, etc., can solve the problems of tension fluctuation, research on the special coiling process of Karensai coiler, etc., and achieve the goal of reducing repair costs and reducing loss of tension Effect

Active Publication Date: 2015-11-18
INNER MONGOLIA BAOTOU STEEL UNION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Coil tension control is a difficult point in the field of cold-rolled strip production automation. From the perspective of existing technologies, no detailed research has been carried out on the special coiling process of the Karenser coiler, and the tension fluctuation caused by the rotation of the turntable has not been proposed. Solution

Method used

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  • The Method of Improving the Tension Fluctuation During the Turntable Rotation of Karen Sai Coiler
  • The Method of Improving the Tension Fluctuation During the Turntable Rotation of Karen Sai Coiler
  • The Method of Improving the Tension Fluctuation During the Turntable Rotation of Karen Sai Coiler

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Effect test

Embodiment 1

[0047] Such as Figure 4 As shown, it is the steel type in the present invention: SPCC, product specification: 1.8 * 1500mm compensation before and after coiling tension comparison curve.

[0048] Steel type: SPCC, product specification: 1.8×1500mm, tension setting value is 90kN, from the tension fluctuation before and after compensation, it can be seen that after compensation, the actual tension fluctuation is reduced from about ±5% before compensation to ±2% or less.

Embodiment 2

[0050] Such as Figure 5As shown, it is the steel type in the present invention: SPCC, product specification: 1.0×1500mm, the comparison curve of coiling tension before and after compensation.

[0051] Steel type: SPCC, product specification: 1.0×1500mm, tension setting value is 57kN, from the tension fluctuation before and after compensation, it can be seen that after compensation, the actual tension fluctuation is reduced from about ±14% before compensation to ±3% or less.

Embodiment 3

[0053] Such as Figure 6 As shown, it is the steel type in the present invention: SPCC, product specification: 0.7 * 1500mm The comparison curve of coiling tension before and after compensation.

[0054] Steel type: SPCC, product specification: 0.7×1500mm, tension setting value is 57kN, from the tension fluctuation before and after compensation, it can be seen that after compensation, the actual tension fluctuation is reduced from about ±14% before compensation to ±3% or less.

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Abstract

The invention discloses a method for improving the tension fluctuation during the rotational process of the rotary table of a carrousel coiling machine. The method comprises the following steps: coiling tension of the carrousel coiling machine is analyzed, a coiling tension fluctuation curve is made according to a coiling tension fluctuation value, and the coiling tension is built by the mandrel of the coiling machine and the rotation motor of a turntable together; base points with the same coiling tension fluctuating values and in opposite directions are selected at different angular positions of the turntable, and a tension compensating curve is obtained by using a curve fitting method; a tension compensation dosage determined according to the angles of the turntable and the tension compensating curve is taken as an additional set value for a tension set value to be input into the system for carrying out compensation to the coiling tension caused by the rotation motor of the turntable. The method provided by the invention can greatly improve the tension fluctuation during the rotational process of the rotary table of the carrousel coiling machine, and reduces failure rates of breakage and tension loss.

Description

technical field [0001] The invention relates to an automation technology for cold-rolled strip steel, in particular to a method for improving the tension fluctuation during the rotation of the turntable of a Karenser coiler. Background technique [0002] At present, in the production of cold-rolled strip steel, the Calense type coiler is used in high-level continuous cold-rolling mills and The pickling-cold rolling unit has been widely used, but the Kalensay coiler also has its disadvantages, that is, the mechanical structure is complex, and it is easy to break the belt or break the tension due to tension fluctuations during the rotation of the turntable. In the case of rolling, broken strips and loss of tension may even cause equipment damage. [0003] The invention patent with the publication number CN102923511A "winding tension control system"; the utility model patent "a tension control system based on PLC" with the publication number CN201842545U; the utility model pat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B37/48
Inventor 王超
Owner INNER MONGOLIA BAOTOU STEEL UNION
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