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Straightening scheme of metal plate-belt roll type combination straightening machine

A metal strip and straightening machine technology, applied in the direction of rolling force/roll gap control, etc., can solve the problems of reducing strip straightening quality, slippage, noise, etc. The effect of straight precision

Inactive Publication Date: 2009-04-29
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the straightening scheme adopted by the combined metal strip-roller straightening machine is a straightening method in which the reduction of the straightening roller decreases and the rolled piece is alternately bent. With this straightening scheme, during the straightening process, the straightening plate With the reduction of the bending curvature of the strip, the moving speed of the strip between the straightening rollers will change. If centralized transmission is adopted, the speed of each straightening roller is the same, and a negative torque will be generated during the straightening process of the strip, resulting in Slip on the straightening roller surface, causing noise, which reduces the straightening quality of the strip

Method used

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  • Straightening scheme of metal plate-belt roll type combination straightening machine
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  • Straightening scheme of metal plate-belt roll type combination straightening machine

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Embodiment Construction

[0013] Now there is a metal strip with thickness h=400mm, modulus of elasticity E=210000Mpa, yield limit σ s = 400Mpa, take the roll distance t = 400mm of the large roller system of the roller-type combined straightening machine, and bring it into the formula ρ w = h · E 2 σ s and s = 2 ρ w + h - ( 2 ρ w + h ) 2 - t 2 / 4 , The reduction amount s = 2.4 mm was obtained.

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Abstract

The invention discloses a straightening proposal of a metal slab band roller-typed combined straightener, which belongs to the technical field of the metal slab band straightener and is the improvement aiming at the existing straightening proposal. The invnetion is characterized in that in a roller system combined by a small roller system and a big roller system, a 'parallel straightening proposal' with equal rolling reduction both in a front roller system and a rear roller system is adopted, the rolling reduction thereof is as follows: s equals to 2rhow plus h-(2rhow plus h)<2>-t<2> / 4, wherein, 2rhow is the curvature radius of the bend of the slab band, rhow equals to (h question mark E ) / 2 sigmas, h is the thickness of the slab band, E is the elastic modulus of the slab band, sigmas- is the yield limit of the slab band, and t is the roller nip of the big roller system.

Description

Technical field: [0001] The invention belongs to the technical field of metal strip straightening machines, and in particular relates to a straightening scheme of a metal strip roller-type combined-roll straightening machine. Background technique: [0002] At present, the straightening scheme adopted by the combined metal strip-roller straightening machine is a straightening method in which the reduction of the straightening roller decreases and the rolled piece is alternately bent. With this straightening scheme, during the straightening process, the straightening plate With the reduction of the bending curvature of the strip, the moving speed of the strip between the straightening rollers will change. If centralized transmission is adopted, the speed of each straightening roller is the same, and a negative torque will be generated during the straightening process of the strip, resulting in Slipping on the straightening roller surface causes noise, thereby reducing the stra...

Claims

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Application Information

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IPC IPC(8): B21D1/02B21B37/58
Inventor 王效岗黄庆学
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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