Plate shape and thickness-controlling rolling method and corresponding gap-less roller mill

Abstract

The plate shape and thickness-controlling rolling method is to use "move work roll" roller mill, where the gap is changed to regulate the plate shape and thickness via transversely shifting and symmetrizing crossed work rolls. The roller mill includes frame, hold down mechanism, upper support roll mechanism, upper work roll mechanism, lower support roll mechanism, lower work roll mechanism, and cross shift mechanism comprising waist block and shift cylinder. The cross shift mechanism is used to replace available expensive automatic thickness controller and results in simple roller mill structure, low cost, low pressure for plate shape and thickness control and raised control precision. In addition, using the hold down cylinder, the waist block and the shift cylinder can realize gap-less rolling.

Description

technical field [0001] The invention relates to a rolling method for controlling the shape and thickness of rolled plates and strips in the metallurgical machinery industry and a gapless rolling mill suitable for the method, that is, a moving work roll (Move Work Roll) rolling mill, MWR rolling mill for short. Background technique [0002] At present, the controllable plate thickness and shape four-roll mills for rolling plates and strips at home and abroad are all occupied by foreign proprietary technologies, such as: the CVC (Continuous Variable Crown) rolling mill produced by German SMS company, the PC (Pair Crossed rolls) rolling mill, etc. The method of controlling the shape of the CVC rolling mill is to use S-shaped upper and lower work rolls, and move the work rolls axially relative to adjust the shape of the plate, but this kind of rolling mill needs a special grinding machine and software to grind the S-roll shape of the work rolls, and special control software. Th...

AI Technical Summary

Problems solved by technology

[0003] In addition, in order to replace the work roll and the back-up roll in the existing rolling mill, there is a certain gap between the work roll and the back-up roll chocks and the frame, so it is easy to generate vibration during rolling, and at the same time affect the shape and thickness of the plate. control precision

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