Device for regulating magnetic force of printing magnetic table through coordination of screw and air cylinder element

Abstract

The invention discloses a device for regulating magnetic force of a printing magnetic table through coordination of a screw and an air cylinder element. The device comprises the air cylinder element mounted at the bottom of a magnetic table supporting body, and a rocker arm in pivoted connection with the magnetic table supporting body. The bottom end of the rocker arm is connected with a center shaft of the air cylinder element through a double-lug ring, and the top end of the rocker arm is connected with the magnetic table. The device for regulating the magnetic force further comprises a gear set mounted on the outer side wall of a side beam, a transmission rod connected with a driving gear in the gear set, and the regulating screw connected with a driven gear in the gear set. One end of the regulating screw is in threaded connection with the interior of a threaded hole of the driven gear, and the other end of the regulating screw is connected with the bottom end of the double-lug ring through an abrasion preventing device. Through the technical scheme, the regulating screw can be driven by the gear set to move backward or forward only by applying small external regulating force to the transmission rod, the abrasion preventing device can transmit power to the rocker arm under the circumstance that contact between the regulating screw and the double-lug ring is avoided, moreover, the center shaft is stretched out and drawn back, and the magnitude of the magnetic force of the magnetic table is regulated accurately and effectively.

Description

Technical field: [0001] The invention relates to the technical field of rotary screen printing machines, in particular to a device for adjusting the magnetic force of a printing magnetic table in cooperation with a screw and a cylinder element. Background technique: [0002] The scraping device of the rotary screen printing machine is divided into two types: blade scraping and magnetic bar scraping. Blade scraping is to apply pressure through the elasticity of the stainless steel blade itself. The characteristic of printing is that the scraping lines are relatively clear, but the variety and width of fabrics are limited, and it is not suitable for thick and wide fabrics. Magnetic rod scraping printing is to put a steel rod in the rotary screen, and a row of magnets are arranged under the fabric. The steel rod is attracted by the magnet to exert pressure on the color paste to complete the printing. The line definition of magnetic bar scraping printing is slightly inferior to...

AI Technical Summary

Problems solved by technology

Blade scraping is to apply pressure through the elasticity of the stainless steel blade itself. The characteristic of printing is that the scraping lines are relatively clear, but the variety and width of fabrics are limited, and it is not suitable for heavy and wide fabrics.

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