Heating device for blade of circle shear

Abstract

The invention discloses a heating device for a blade of a circle shear. The heating device can be used for heating the blade of the circle shear, and the blade of the shear is heated to expand according to the expansion and contraction principle, so that the blade of the shear is convenient to replace. The heating device comprises a heating box, wherein the heating box is provided with an inner cavity, a bracket is arranged on the bottom surface of the inner cavity of the heating box, electric resistance heating pieces are arranged on the inner wall of the inner cavity of the heating box or both on the inner wall and on the top surface of the inner cavity of the heating box, a shear blade inlet is formed in the heating box, the shear blade inlet is provided with an openable door used for closing the shear blade inlet, a power switch is arranged on the outer surface of the heating box, and the electric resistance heating pieces are connected with the power switch. By the adoption of the heating device, the workload can be lightened, the shear blade replacement time is shortened, working efficiency is improved, and a traditional shear blade replacement method is changed; meanwhile, the blade of the shear can be evenly heated during heating, and thus the situation that the blade of the shear is scraped due to deformation caused by heating is avoided.

Description

technical field [0001] The invention relates to a heating device, in particular to a heating device for disc scissors. Background technique [0002] Known: in cold rolling production, in order to realize the continuous rolling of steel strip, need two volumes of strip steel be welded together, remove the iron oxide scale on the surface of strip steel through pickling. Cold rolling does not consider the influence of strip width, and the width of hot rolling raw material is different from the width after rolling. Therefore, the strip width needs to be cut to the required width range at the pickling exit section. Disc scissors play the role of edge trimming and width determination, and are mainly composed of a base, upper and lower pressure rollers, detection devices, shearing device blades, rubber rings, fastening discs, oil pump systems, etc., and control devices. [0003] During the trimming process, due to the influence of factors such as the material of the cutting blade ...

AI Technical Summary

Problems solved by technology

At present, most cold rolling mills in China adopt the method of manually replacing the shearing blade directly, and slowly knocking the replaced shearing blade in with a rubber hammer. This method of replacing the shearing blade takes a long time and is easy to damage the shearing blade, which affects the effective working efficiency of the unit.

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