Extruder opening of vacuum extruder capable of improving quality of extrusion billet body

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 mouth of a vacuum extruder for improving the quality of extruded blanks. Background technique [0002] There are usually two kinds of existing ceramic tile production methods, one is dry pressing of the mold, that is, the dry powder is put into the mold cavity and pressed into a green body by applying pressure, and the other is wet extrusion molding, that is, the moisture content is The plastic mud of about 17% is extruded through the forming die on the vacuum extruder. In the existing vacuum extruder, the friction between the mud and the wall of the forming die frame during the extrusion process will cause the surface of the finished mud brick to appear frizzy, and the surface of the green body is usually rough, especially at the edges and corners of the mud brick. The collapse seriously affects the strength and quality of the mud brick, and it is easy to c...

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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