Ceramic tile die with functions of two-time material distribution and two-time pressure application and ceramic tiles manufactured by ceramic tile die

Abstract

Traditional ceramic tile pressing is one-step pressing, a front surface of a ceramic tile green body is a smooth plane, and a back surface of the ceramic tile green body comprises concave-convex grains, uneven density and uneven and unsmooth surfaces can be caused inevitably, a ceramic tile die with functions of two-time material distribution and two-time pressure application is adopted, the die is arranged above a tile green body conveying table on one side of a press, during first-time material distribution and pressure application, the die is cushioned on the lower part of a fixing upper die core, during pressing, the tops and bottoms of tile green bodies are subjected to planar compression, densities are consistent, then powder distribution and then pressing of a back grain layer are carried out, the influence on the densities of the green bodies which have been pressed on a first layer is reduced by controlling thickness and pressure value, when the ceramic tile green bodies are sintered and formed, ceramic tile powder on a surface layer retracts in a balanced manner at the consistent density so that the surface is smooth and flat, a bottom grain layer retracts at inconsistentdensity, but inconsistency only reflects on a grain surface but does not affect the surface, and purposes of enabling surfaces of ceramic tiles to be flat and enabling back grain structures to be powerful are achieved effectively.

Description

technical field [0001] The invention relates to the field of ceramic production, and more specifically relates to a ceramic tile mold for secondary cloth and secondary pressure and ceramic tiles made therefrom. Background technique [0002] In the existing ceramic tile production process, the ceramic tile embryo body is formed by pressing and forming powdery materials through ultra-high pressure. The ceramic tile embryo body is molded by mechanical equipment with fixed upper and lower molds. For the production of most floor tiles, in order to remove the mold smoothly and After demoulding, it enters the brick conveyor belt, and adopts the form of reverse punching, that is, the surface of the tile body is on the bottom, and the back pattern of the tile is on the top. After the tile body is pressed into a green body, it will shrink when it is fired in the oven. However, due to the use of When reverse punching, the upper surface of the powder placed in the mold frame of the lowe...

AI Technical Summary

Problems solved by technology

[0004] For a perfect piece of tile, for the user, the smoother the surface, the better. For the construction party, the structure is safe. The deeper the texture on the back, the better, and the greater the adhesion, the better. Shrinkage is all-round deformation at the same time, it seems that fish and bear's paw can't have both

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