Lower knife shaft locking device of aluminum strip slitting machine

Abstract

The locking device for the lower cutter shaft of the aluminum strip slitting machine includes a vertical plate. A cylinder is horizontally arranged on the outside of the vertical plate. The horizontal thread is connected with a screw, and the thread on the screw is connected with a fixed nut that is pressed against the outer surface of the blocking plate. The outer end of the screw is equipped with an operating head, and the cylinder is equipped with a bearing. The inner ring of the bearing is connected with a stepped shaft by interference fit. , the inner end of the stepped shaft is coaxially connected with a top tightening head, the inner end of the top tightening head is provided with a tapered hole in the axial direction, the outer ring of the bearing is axially fitted with the inner wall of the cylinder, and the inner end of the screw rod is threadedly connected with a fastening Nut, the inner side of the fastening nut is press-fitted with the outer surface of the bearing through a pressure plate. The invention is reasonable in design and simple in structure. It adopts the locking method of the screw rod to tighten the lower cutter shaft in the axial direction without any axial gap, so as to prevent the radial runout of the lower cutter shaft during high-speed rotation, thereby improving the product quality. cutting quality.

Description

technical field [0001] The invention belongs to the technical field of aluminum strip processing and production, and in particular relates to a lower cutter shaft locking device of an aluminum strip slitting machine. Background technique [0002] The slitting machine is an important equipment in the production process of aluminum strip and aluminum foil. At present, one end of the lower knife shaft of the slitting machine is connected to the vertical plate in rotation, and the other end of the lower knife shaft is locked by the handle spring-type locking mechanism. Since the compression spring is used, even if an axial force is applied to the compression spring No matter how big it is, there is also a certain axial gap in the lower cutter shaft during high-speed rotation. Since the lower cutter shaft is longer, radial runout will occur, which will affect the accuracy of cutting aluminum strips. Contents of the invention [0003] In order to solve the deficiencies in the p...

AI Technical Summary

Problems solved by technology

At present, one end of the lower knife shaft of the slitting machine is connected to the vertical plate in rotation, and the other end of the lower knife shaft is locked by the handle spring-type locking mechanism. Since the compression spring is used, even if an axial force is applied to the compression spring No matter how big it is, there is also a certain axial clearance of the lower cutter shaft during high-speed rotation. Since the lower cutter shaft is longer, radial runout will occur, which will affect the accuracy of cutting aluminum strips.

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