a sand blasting device

Abstract

The invention discloses a sanding device. The sanding device comprises a sand storage device and a control mechanism. The control mechanism comprises a valve element on a valve. The valve element is rotationally arranged in the valve and provided with a first air hole, a second air hole and a third air hole. The positions, corresponding to the first air hole, the second air hole and the third air hole of the valve element, of the valve are provided with a first through hole, a second through hole and a third through hole. The first through hole is connected with the sand storage device. The second through hole is connected with an air pump. The third through hole is used for being connected with an air pipe of a machined workpiece. Connection and disconnection between the first air hole and the first through hole, between the second air hole and the second through hole and between the third air hole and the third through hole are controlled through rotation of the valve element. The sanding device is mainly designed for the problem of removing of rust on the inner wall of a pipe piece, fine sand is driven by airflow to enter from one end of the pipe piece, and when the fine sand passes through the inner diameter part of the pipe piece, the fine sand irregularly impacts on the inner wall of the pipe piece, and therefore the effect of rust removing is achieved.

Description

technical field [0001] The invention relates to the technical field of mechanical processing equipment, in particular to a sand blasting device. Background technique [0002] In the process of mechanical production, the problem of derusting the inner hole of pipe fittings has always been a processing problem. Since the diameter of the inner hole of pipe fittings is generally small, it is difficult for tools to penetrate deep into the inner hole of pipe fittings for processing after the inside is rusted. , making it more troublesome to remove the rust, or even impossible to remove. Due to the internal rust of the pipe fittings, it will have a greater impact on the later use and processing. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a sand blasting device that can conveniently remove the rust on the inner wall of the pipe. [0004] In order to solve the above technical problems, the technical solution of the...

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Problems solved by technology

[0002] In the process of mechanical production, the problem of derusting the inner hole of pipe fittings has always been a processing problem. Since the diameter of the inner hole of pipe fittings is generally small, it is difficult for tools to penetrate deep into the inner hole of pipe fittings for processing after the inside is rusted. , making it more troublesome to remove the rust, or even impossible to remove

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