An extruder mouth of a vacuum extruder for improving the quality of extruded blanks

Abstract

An extruder opening of a vacuum extruder capable of improving quality of an extrusion billet body comprises an extrusion die frame and an extruder opening body; a wetting system for wetting the surface of an inner frame of the die frame is arranged inside the frame side of the die frame, and the wetting system comprises a liquid inlet, liquid flow dividing strips and a liquid outlet; wetting liquid enters from the liquid inlet, flows in the die frame in a distributed manner along the frame shape of the frame side through flow dividing of the liquid flow dividing strips and finally flows out through the liquid outlet; the liquid flow dividing strips are provided with wetting holes leading to the surface of the inner frame, and when the wetting liquid flows through the liquid flow dividing strips, the surface of the inner frame is wetted through wetting holes; and the extruder opening body comprises a diameter diminishing cylinder, a discharging opening and a mud dividing frame; and the mud dividing frame is provided with mud dividing plates stretching into the middle of an inner cavity of the diameter diminishing cylinder, and cutting edges are arranged at the ends, facing the vacuum extruder, of the mud dividing plates. According to the extruder opening of the vacuum extruder capable of improving quality of the extrusion billet body, the forming billet body is more compact, and no cracks exist on the surface; and a product is not prone to cracking, and the product quality and the yield are improved.

Description

technical field [0001] The invention relates to the technical field of vacuum extruders, in particular to an extruder port of a vacuum extruder for improving the quality of an extruded body. 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 water content About 17% of the plastic clay is extruded through a molding 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 r...

AI Technical Summary

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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