Wide-range metal plate belt edge-cutting device

Abstract

The invention relates to a wide-range metal plate belt edge-cutting device used for a circle shearer unit for carrying out cold finish rolling and finishing wire on a metal plate belt. An idler wheel is provided with an inner tooth and an outer tooth which are respectively meshed with a power gear and a straight gear, the straight gear is in clearance fit and key connection with a cutter shaft, the rear end of the cutter shaft is provided with a fixed baffle plate and the front end is provided with a step, a push-pull sleeve is sleeved on the cutter shaft, in clearance fit with the cutter shaft and connected with the straight gear together, the rear end of the cutter shaft is provided with a pin hole, and a positioning device is used for positioning the push-pull sleeve on the cutter shaft axially. Active penetrating and passive shearing are realized through meshing and separating of the idler wheel and the straight gear. The invention can effectively meet the requirement for active cutting of penetrating, greatly reduce the load of the cutter shaft, improve the rotating flexibility of the cutter shaft when the cutter shaft is sheared, and improve the cutting quality of the metal plate belt. Meanwhile, one unit can realize shearing of medium and thin metal plate belts, greatly improve the operation efficiency of the unit, reduce the equipment input cost, lower the equipment noise, prolong the service life of the parts and the whole unit, and decrease the energy consumption.

Description

technical field [0001] The invention relates to a disc shearing unit used on the cold finish rolling and finishing line of metal strips in the iron and steel and nonferrous metal industries, especially an edge trimming device for medium and thin (0.2mm-4.0mm) metal strips. Background technique [0002] Disc shears are composed of two or more sets of vertically dislocated circular blades. A certain side gap and overlap are adjusted to cut the metal strip passing between the two blades. [0003] At present, on the cold finish rolling and finishing lines of domestic metal strips, the edge trimming disc shears of medium and thin plates (0.2mm-4.0mm) are widely used. The structural form of the disc shear is mainly dynamic tension shear, that is, the knife shaft first actively rotates to cut the strip when threading the strip, and when the coiling tension is established, the power of the knife shaft is disengaged, and the strip is cut by pulling the knife shaft to rotate by the te...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a wide range of metal strip edge trimming device, by realizing the rapid engagement and disengagement of the cutter shaft and the transmission, to ensure the rotation of the cutter shaft when cutting medium and thin plates Flexibility, solve the problem that the medium and thin plate shearing cannot be realized at the same time on the cold finish rolling and finishing lines, greatly reduce equipment investment, and improve the operating efficiency of the unit

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