A kind of easy-off and anti-blocking original edge ceramic tile forming mold

Abstract

The invention discloses an easy-to-release anti-blocking original-side ceramic tile forming mould and belongs to the technical field of powder forming. The easy-to-release anti-blocking original-side ceramic tile forming mould comprises an upper mould core, side plates and a lower mould core which define a mould cavity. The easy-to-release anti-blocking original-side ceramic tile forming mould is characterized in that a ventilating path and a plurality of gas vent holes are formed in the upper mould core, wherein one end of each gas vent hole is communicated with the bottom surface of the upper mould core, the other end of each gas vent hole is communicated with the ventilating path, the ventilating path is connected with a gas exhausting branch and a gas blowing branch; the side plates comprise long side plates and short side plates which are enclosed in two adjacent long side plates, wherein first inclined positions which are outwards inclined from top to bottom are formed in the inner walls of the long side plates and the short side plates; second inclined positions are formed in the two ends of each short side plate; the long side plates and the short side plates can be tightly assembled together through the first inclined positions and the second inclined positions. A ceramic brick green body finished product pressed out by the forming mould does not need edging processing; moreover, in the pressing process, the gas exhausting system can be prevented from being blocked, the demoulding is easy to carry out and the mould is prevented from being blocked, so that the forming quality of the original-side ceramic tiles can be improved.

Description

technical field [0001] The invention belongs to the technical field of powder molding, and in particular relates to an easy-to-remove and anti-block original edge ceramic brick molding die. Background technique [0002] Existing ceramic tiles are all formed through pressing process, and the pressed brick adobe is larger than the standard size after being fired, and can become finished product after edging and trimming. The ceramic tiles produced in this way not only increase the production process and reduce the production efficiency, but also can only produce right-angled ceramic tiles, which cannot meet the needs of ceramic tiles such as rounded corners and beveled corners. Therefore, people put forward the concept of original edge ceramic tiles, that is, ceramic tiles that are finished products without treatment after firing. [0003] The pressing process of ceramic tiles is usually to press the ceramic powder in the cavity of the mold, that is, the mold frame is surroun...

AI Technical Summary

Problems solved by technology

But in the actual use process, when the gas is discharged from the through hole, it will drive a small amount of powder to overflow and form point-like and linear protrusions on the back surface of the ceramic tile, causing the ceramic tile to be uneven; The size of the hole can be used to reduce the above phenomenon, and the powder will easily block the through hole, reduce the exhaust volume or even completely fail the exhaust function

As a result, most ceramic factories still adopt the method of reducing the pressing speed, or simply do not do separate exhaust treatment

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