A double-sided sandblasting machine for stainless steel plates to resist bending stress

Abstract

The invention discloses a double-sided sand-blasting machine for bending stress resistance of a stainless steel sheet. The double-sided sand-blasting machine structurally comprises an observation window, a sand-blasting box, a conveying frame, supporting legs, a dustproof curtain, a gravel conveying pipe, an air drawing pipe and a sand-blasting cylinder. The observation window is installed on thefront side of the sand-blasting box in an inlaid mode and connected with the sand-blasting box through a hinge, the sand-blasting box is located below the front end of the gravel conveying pipe, and the conveying frame is fixedly installed on the side surface of the sand-blasting box in an inlaid mode and communicates with the sandblasting box. Compared with the prior art, the special shape of a state limiting conversion block and the height difference between chain plate side edge protective blocks are utilized to erect the sheet, an upper single-inclined-face elastic jacking column and a lower single-inclined-face jacking top column which are provided with elastic elements push and abut against the sheet, and the sheet is placed flatly without damaging the sheet, so that the double-sidedsand-blasting machine can perform sand blasting on the two surfaces of the sheet simultaneously in the sheet transportation process, the stress conditions of the two surfaces are completely the same,the occurrence of bending stress is avoided, and the working efficiency of the double-sided sand-blasting machine is improved.

Description

technical field [0001] The invention belongs to the technical field of plate processing, and in particular relates to a double-sided sandblasting machine for stainless steel plates to resist bending stress. Background technique [0002] For the board, the sandblasting process is more important. It can treat the surface of the board meticulously, so that the coating film and coating can adhere to the surface for a longer time. Sandblasting can remove the surface oxide scale, oil stains and other At the same time, it will form a smooth surface with astigmatism, but the insufficient consideration of the existing technology is: [0003] Sand blasting is to extract air and compress the jet air flow, drive the gravel with fine edges and corners, impact on the surface of the plate, and the high-speed moving gravel hits the surface of the plate, which will generate stress on the surface of the plate, resulting in deformation and bending of the plate, especially It is a thin plate, ...

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Problems solved by technology

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a double-sided sandblasting machine for stainless steel plates to resist bending stress, to solve the problem that in order to avoid stress on the surface of the plates, resulting in deformation and bending of the plates, the plates must have two sides Sandblasting is carried out on both sides. Generally, one surface is sprayed, and then the other surface is sprayed. This method needs to be processed twice for one plate, resulting in low efficiency. However, the equipment for sandblasting both sides on the market at the same time uses conveying Sometimes the upper and lower sides are sandblasted at the same time, but in this way, the impact force of the gravel ejected from the lower nozzle is smaller than that of the upper part under the action of gravity, so that the stress cannot be offset, and the problem of bending and deformation of the plate will still be caused.

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