Labyrinth seal structure of water knife device for longitudinal movement rail

Abstract

The invention provides a labyrinth sealing structure used for a longitudinal movement guide rail of a water knife, which is characterized in that the structure consists mainly of a primary cover plate (1), an internal cover plate (2) and a side cover plate (3); the two ends of the primary cover plate are respectively fixed on the two ends of a guide rail seat (4), the primary cover plate (1) consists of a horizontal plate (101) and two downward hems (102); a groove (501) that matches with the hem (102) is arranged at each side of a sliding plate (5); the internal cover plate (2) is formed by a horizontal bottom plate (201) and a vertical side plate (202) that are connected together; the side cover plate (3) is formed by a horizontal section (301), an upward vertical section (302) and a downward vertical section (303) that are connected together. A through hole for impurities to drop is arranged on the horizontal section (301). The invention has the advantages of good sealing effect, long service life and wide application range.

Description

technical field [0001] The invention relates to a water-jet device, in particular to a sealing structure of a transmission part of the water-jet device, in particular to a labyrinth-type sealing structure for a longitudinally moving guide rail of the water-jet device. Background technique [0002] At present, waterjet cutting equipment is more and more favored by all walks of life because of its unique performance, and it is developing in the direction of large-scale and multi-functional. [0003] For waterjet equipment with high precision requirements, the method used to move the cutting head along the length of the bed is generally realized by using guide rails and screw nuts. In order to ensure the transmission accuracy of the guide rails and prevent cutting, All kinds of impurities will pollute the guide rail, and the guide rail must be sealed. At present, the commonly used sealing method is to adopt the accordion-style leather tiger structure. The use requirements, but...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to design a labyrinth seal structure for the longitudinally moving guide rail of the water jet equipment in view of the problems that the guide rail sealing structure of the existing water jet equipment is difficult to adapt to the long screw drive and the sealing effect is poor and the service life is short.

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