Lower knife shaft locking device of aluminum strip splitting machine

Abstract

The invention discloses a lower knife shaft locking device of an aluminum strip splitting machine. The lower knife shaft locking device comprises a vertical plate, wherein a cylinder is horizontally arranged at the outer side of the vertical plate; a through hole communicated with the inner end of the cylinder is formed in the vertical plate; a plug plate is arranged at the outer end of the cylinder; the center of the plug plate is in horizontal threaded connection with a lead screw; the lead screw is in threaded connection with a fixed nut which presses against and matches the outer surface of the plug plate; an operation head is arranged at the outer end of the lead screw; a bearing is arranged in the cylinder; an inner ring of the bearing is connected with a step shaft in an interference fit manner; the inner end of the step shaft is coaxially connected with an ejection head; a conical hole is axially formed in the inner end of the ejection head; an outer ring of the bearing axially fits the inner wall of the cylinder in a sliding manner; the inner end of the lead screw is in threaded connection with a fastening nut; and the inner side of the fastening nut presses against and matches the outer side surface of the bearing through a pressure plate. The lower knife shaft locking device is reasonable in design and simple in structure, and axially ejects a lower knife shaft by adopting a lead screw locking manner without generating an axial gap, so that the radial jumping condition of the lower knife shaft in the high-speed rotating process is prevented, and the product splitting quality is improved.

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.

Images