Vacuum extruder forming die with circulating wetting system suitable for hollow square bricks
A technology of vacuum extruder and molding die, which is applied in the direction of ceramic extrusion die, etc., can solve the problems of affecting the strength and quality of mud bricks, the reduction of the qualified rate of finished tiles, and the frizzy surface of finished mud bricks, etc. Effect of reducing dosage and relieving environmental pressure
Active Publication Date: 2019-03-01
曾省忠
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Problems solved by technology
In the existing vacuum extruder, the friction between the mud material and the forming mold frame wall during the extrusion process will cause the surface of the finished mud brick to appear frizzy. Usually, the surface of the body is rough, especially at the corners of the mud brick. Subsidence will seriously affect the strength and quality of mud bricks, and it is easy to cause cracks in the subsequent sintering process, which will reduce the qualified rate of finished tiles
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[0028] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0029] A vacuum extruder molding die with a circulating wetting system suitable for hollow square bricks, including a bottom plate 1 and a mold frame 3 and a bracket 2 arranged on it, the mold frame 3 is arranged at the corresponding extrusion port of the vacuum extruder, and the The bracket 2 and the mold frame 3 are separately arranged on both sides of the bottom plate 1, and the bracket 2 is provided with a mold core 21 for the hollow clay body, and one end of the mold core 21 is fixed to the bracket 2;
[0030] The frame edge 31 of the mold frame 3 has a built-in wetting system 4 for wetting the surface of the mud brick adobe, and the wetting system 4 includes a liquid inlet 41, a liquid distribution bar 42 and a liquid outlet 43;
[0031] The wetting liquid enters from the liquid inlet 41, flow...
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The invention relates to a vacuum extruder molding die with circulation wetting systems and suitable for hollow square bricks. The vacuum extruder molding die comprises a base plate, a die frame and a support, wherein the die frame and the support are arranged on the base plate; the die frame is arranged at a corresponding extrusion opening of a vacuum extruder, the support and the die frame are arranged on the two sides of the base plate, and the support is provided with a die core used for hollow pug blank bodies; the wetting systems for wetting the surfaces of pug green bricks are arranged in frame edges of the die frame and each comprise a liquid inlet, a liquid bypass stripe and a liquid outlet; wetting liquid enters the liquid inlets, is bypassed through the liquid bypass stripes, flows in the die frame along the frame model distribution of the frame edges, and finally flows out from the liquid outlets; and when the wetting liquid flows through the liquid bypass stripes, the surfaces of the pug blank bodies are wetted through wetting holes, and each wetting system is provided with an inner circulation device. By means of the vacuum extruder molding die with the circulation wetting systems and suitable for the hollow square bricks, abrasion between the pug green bodies and the die frame is reduced, the service life of the die frame is long, the sgraffito and roughing phenomena on the surfaces of the pug bricks are effectively reduced, and the quality of finished products is improved.
Description
technical field [0001] The invention relates to the technical field of ceramic production equipment, in particular to a vacuum extruder molding die with a circulation wetting system suitable for hollow square bricks. Background technique [0002] There are usually two existing ceramic tile production methods, one is mold dry pressing, that is, put the dry powder into the mold cavity, and press it into a green body by applying pressure, and the other is wet extrusion molding, that is, the mud It is extruded through a forming die on a vacuum extruder. In the existing vacuum extruder, the friction between the mud material and the forming mold frame wall during the extrusion process will make the surface of the finished mud brick rough. Usually the surface of the body is rough, especially at the corners of the mud brick. The subsidence seriously affects the strength and quality of mud bricks, and it is easy to cause cracks in the subsequent sintering process, which reduces the ...
Claims
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IPC IPC(8): B28B3/26
Inventor 黄婉雅
Owner 曾省忠