Method of eliminating arc deformation of polished brick and the polishing machine therefor

Abstract

The present invention discloses method of eliminating arc deformation of polished brick and the polishing machine therefor. The method features that three pressure adjustable grinding discs are used to polish the middle part and the two sides of the polished brick simultaneously. The corresponding polishing machine has at least three lines of grinding discs mounted separately onto independent elevating mechanisms, and these three lines of grinding discs are used to polish the middle part and the two sides of the polished brick simultaneously. The present invention has small grinding disc pressure required for effective polishing, reduced total pressure the brick bears, less elastic deformation of the brick and the conveying belt, effective elimination of the arc deformation in the brick and high brick polishing quality.

Description

technical field [0001] The invention relates to equipment for polishing building bricks, especially a method for polishing porcelain polished bricks fired at high temperature after ceramic powder is pressed by a brick press to eliminate the deformation of the arc surface of the bricks, and a device suitable for the method polisher. Background technique [0002] Porcelain polished tiles are porcelain wall and floor tiles that are fired at high temperature after pressing ceramic powder with a brick press. During the high-temperature firing process, due to the different shrinkage of the surface and bottom of the brick body, basically the same arc surface deformation often occurs in the same batch of fired brick bodies, and the brick body is either arched or sunken, and the size of the brick body is larger. This deformation is also larger. Although the brick body is polished by a polishing machine, it is still difficult to eliminate the arc deformation of the brick body, becau...

AI Technical Summary

Problems solved by technology

Although the brick body is polished by a polishing machine, it is still difficult to eliminate the arc deformation of the brick body, because the existing polishing machine has design defects: although the brick body will be successively rubbed by multiple grinding discs during the longitudinal movement of the polishing machine conveyor belt Polishing, but at the same time, there is always only one large grinding disc to polish the brick body in the transverse direction perpendicular to the running direction of the conveyor belt. The contact area between the grinding disc and the brick body is large, and the pressure is small. The overall pressure of the brick body can be effectively polished and ground, and the brick body is not an ideal rigid body, and the conveyor belt also has a certain degree of elasticity. Therefore, the large pressure of the grinding disc on the brick body will cause elastic deformation of the brick body and the conveyor belt, resulting in the knife phenomenon. As a result, it is difficult to control the flatness of polishing, and it is also difficult to eliminate the arc deformation of the brick body

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