Isostatic pressing ceramic tile die

Abstract

The invention discloses an isostatic pressing ceramic tile die. The isostatic pressing ceramic tile die comprises an upper die and a lower die, wherein the upper die is provided with multiple through holes, each through hole is internally provided with a piston pillar which can float in each through hole in a reciprocating way, and a movable gap is reserved between each through hole and the corresponding piston pillar; the periphery of the lower die is connected with the upper die through screws, and oil cavities are arranged among the lower die, the piston pillars and the upper die; the tail ends of the piston pillars are provided with clamping blocks, the clamping blocks are positioned in the oil cavities, and floating ranges of the piston pillars in the through holes are limited by the clamping blocks; one circumferences of opposite surfaces of the upper die and the lower die and the tail ends, which are close to the clamping blocks, of the piston pillars are provided with sealing rings. The isostatic pressing ceramic tile die disclosed by the invention has the advantages that an isostatic pressing effect can be ensured, degumming and swelling cannot be caused, shades of a ceramic tile are smooth, the ceramic tile is light-proof, the structure is simple, and the unburned brick quality is ensured.

Description

technical field [0001] The invention relates to a tile mold, in particular to an isostatic tile mold. Background technique [0002] Ceramic brick molding mold is an important equipment for the production of ceramic tiles. When pressing the bricks of ceramic tiles, because the powder is not filled uniformly in the mold cavity, the difference in density at each point makes the density of the pressed bricks uneven. The finished tiles have poor dimensional accuracy, cracks, and low yield. Most of the existing isostatic pressing molds are equipped with a plurality of oil chambers formed between the elastic rubber and the base mold in the upper mold. After the oil chamber is filled with oil, the pressure transmitted to the adobe will be higher than the surrounding because the middle swells higher than the surrounding area. It is also not uniform; there may be rubber layer and template falling off, resulting in bulging, oil leakage and other phenomena. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0002] Ceramic brick molding mold is an important equipment for the production of ceramic tiles. When pressing the bricks of ceramic tiles, because the powder is not filled uniformly in the mold cavity, the difference in density at each point makes the density of the pressed bricks uneven. The final tiles have poor dimensional accuracy, cracks, and low yield

Most of the existing isostatic pressing molds are equipped with a plurality of oil chambers formed between the elastic rubber and the base mold in the upper mold. After the oil chamber is filled with oil, the pressure transmitted to the adobe will be higher than the surrounding because the middle swells higher than the surrounding area. It is also uneven; there may be rubber layer and template falling off, and there will be bulges, oil leakage, etc.

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