Perforated rod extrusion forming die

Abstract

The invention discloses a bar extruding molding die with holes, which comprises a mandrel seat, a mandrel and a bar forming mold body, the mandrel seat is a disk mandrel seat, and the outermost side far away from the center of the circle is provided with A protruding fixing part, through which the mandrel seat is detachably fixed above the bar forming die body and completely covers the bar forming die body, the mandrel passes through and is assembled in the axial direction of the mandrel seat In the center, the core rod passes through the rod forming die body and is suspended and fixed inside the rod forming die body through the core rod seat. The bar extrusion molding die with holes of the present invention is provided with a protruding fixing part on the mandrel seat, and the mandrel seat can completely cover the bar forming die body through the fixing part, and there is no gap between the mandrel seat and the die body. There is a gap, which avoids the problems that the core rod seat cannot be taken out and the mold cannot be cleaned due to the accumulation of material in the gap, thereby avoiding the product from being dirty.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a rod extrusion molding die with holes. Background technique [0002] Powder metallurgy is an important component forming technology. The continuous emergence of new technologies and processes of powder metallurgy will surely promote the rapid development of high-tech industries, and will also bring bright prospects to material engineering and manufacturing technology. At present, the overall technical level of my country's powder metallurgy industry is low, and the process equipment is backward, and there is a big gap compared with the advanced technology level of foreign countries. Powder metallurgy mold technology is one of the key technologies for the production and development of powder metallurgy mechanical parts. The life of the mold not only affects product quality, but also affects production efficiency. Therefore, it is of great significance to vigorous...

AI Technical Summary

Problems solved by technology

[0003] The existing rod extrusion molding dies with holes have the following problems: 1) As the pressure of the press increases when the feed inlet is fed, the gap between the core rod seat and the mold body is easy to accumulate material, resulting in the core rod seat It cannot be taken out or even the mold cannot be cleaned, and the product is dirty; 2) The fixing of the core rod depends solely on the positioning of the fixing piece, the shape and position of the core rod hole and the shape and position of the shape. When working for a long time, the position of the core rod and The position of the mold body is prone to rotational displacement, resulting in product deviation; 3) Due to the force of the mold during the pressing process, it is very time-consuming and laborious to disassemble the mold from the press after use only by manpower

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