A semi-automatic roll changing device and method for squeezing dry rolls

Abstract

The invention discloses a semi-automatic drying roller replacing device and a method thereof. A drying roller pushing-out mechanism, a drying roller running rack inner track assembly and a rack outerroller way assembly are matched with a crane to finish semi-automatic roller replacing work of a drying roller. According to the semi-automatic drying roller replacing device and the method thereof, in the whole roller replacing process, only when a drying roller enters a rack, manual assisting force is needed, the remaining operation is achieved wholly through hydraulic power, through semi automation, investment of manual physical power is reduced, during normal production, supporting wheels on turned-over tracks are used for axially fixing the drying rollers, due to rotation of the wheels, the lifting resistance of the drying rollers is greatly reduced, in addition, after the tracks are turned over, space on the transmission side of a rack is increased, and in the daily production and move, more comfort is achieved.

Description

technical field [0001] The invention belongs to the field of cold rolling mills, and in particular relates to a semi-automatic roll changing device and method for a squeeze roll. Background technique [0002] In the cold rolling area of ​​metallurgical enterprises, reversing rolling mills are widely used due to their low investment and small footprint. [0003] A pair or two pairs of squeeze rollers are equipped at the entrance and exit of the reversing rolling mill to remove residual oil and iron on the surface of the strip. Copper rollers are often used for the production of strips with high surface quality. After a period of use It needs to be replaced, and the general time is about 10 days. [0004] The on-line roller changing device for squeezing rollers with the application number "CN201120553635.6" is mainly composed of bearing housings, bearing caps, screw rods, roller seats, traveling wheels, roller changing guide rails, and squeezing rollers. It is characterized i...

AI Technical Summary

Problems solved by technology

[0017] The above-mentioned design of the roll changing base cannot be semi-automatic, and the loading and unloading of the rolls is all done manually; the fixed track occupies the space on site

Axial fixation depends on the fixed pressure plate, which requires manual disassembly and assembly, and the workload is relatively large. In addition, when the fixed pressure plate and the squeezing roller move up and down, there is sliding friction, and the resistance is large.

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