Device and method for maintaining stable operation of strip steel for cold-rolled strip steel production unit

A stable operation, cold-rolled strip technology, applied in the direction of rolling mill control devices, metal rolling, metal rolling, etc., can solve problems such as deviation, strip torsion, jitter, etc., to improve productivity, eliminate torsion and jitter, high stability effect

Active Publication Date: 2010-06-09
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a device and method for a cold-rolled strip steel production unit to kee

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  • Device and method for maintaining stable operation of strip steel for cold-rolled strip steel production unit
  • Device and method for maintaining stable operation of strip steel for cold-rolled strip steel production unit
  • Device and method for maintaining stable operation of strip steel for cold-rolled strip steel production unit

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Example Embodiment

[0017] The method for maintaining stable operation of the strip steel provided by the cold rolled strip steel production unit provided by the present invention includes:

[0018] The first step is to start with the tension control to ensure the stable operation of the strip: an uncoiler is installed at the head of the unit, a coiler is installed at the end of the unit, and the uncoiler and coiler are equipped with high-precision encoders;

[0019] The second step is to prevent the strip from twisting and shaking: add a tension roller to the unit. The tension roller includes the left and right rollers of equal height. The roller surface of the tension roller is higher than the strip passing line. When the unit is working normally , The strip steel forms a wrap angle at the entrance and exit of the tension roller, tensioning the strip steel, so that the strip steel runs stably;

[0020] The third step is to prevent strip deviation: add a CPC device after the uncoiler of the unit, which...

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Abstract

The invention relates to a device and a method for maintaining stable operation of strip steel for a cold-rolled strip steel production unit. The method guarantees the stable operation of the strip steel by tension control, prevents the strip steel from torsion and shake by tension of the strip steel, and prevents the strip steel from deviation by adopting an automatic deviation-rectifying control device for the strip steel. The device comprises a decoiler (1) and a coiler (2) which are respectively arranged at the head and the tail of the unit. A high-precision coder is arranged on the decoiler and the coiler. A tension roll (5) is arranged in the unit, and comprises a left roll and a right roll with the same height. The elevation of the left roll and the right roll is respectively higher than that of an inlet pinch roll (4) and an outlet pinch roll (6). A wrap angle is respectively formed at the inlet and the outlet of the tension roll, so that the strip steel is tensioned. An automatic centering and edge-aligning deviation-rectifying control device for the strip steel is respectively arranged on the rear of the decoiler and in front of the coiler. The device and the method can eliminate the problem that the production efficiency is not high due to the torsion, shake and deviation during the operation of the strip steel, and meet the requirements of high stability and high precision of the strip steel on a laser scoring machine unit.

Description

technical field [0001] The invention relates to the field of cold-rolled steel strip production, in particular to a device and method for a cold-rolled strip steel production unit to maintain stable operation of the strip steel. Background technique [0002] During the strip steel operation of the cold-rolled strip production unit, problems such as design defects of local equipment, structural damage or system failure can induce different degrees of vibration of the unit. This instability will cause the strip steel to appear torsion and vibration; some reasons on the shape of the strip steel plate and its equipment, such as low manufacturing precision and installation deviation of the rotating roller, will cause the strip steel to deviate. In order to ensure the production efficiency and product qualification rate of the unit, it is necessary to keep the strip running stably. [0003] In recent years, with the rapid development of my country's energy construction, energy-sa...

Claims

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Application Information

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IPC IPC(8): B21B37/00B21B37/48B21B37/68
Inventor 李张翼郭利华张令琴陈启江
Owner WISDRI ENG & RES INC LTD
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