Extrusion molding device and extruder

Abstract

The invention provides an extrusion molding device and an extruder, the extrusion molding device comprises a shell, the shell is of a cylindrical structure with openings at the two ends, and the feeding end of the shell is provided with a connecting part used for being connected with a discharging port of extrusion equipment; the core shaft is arranged in the shell, an annular gap is formed between the core shaft and the shell, the core shaft and the shell are relatively fixed, and the distance between the outer side wall of the tail end of the core shaft and the inner side wall of the shell is smaller than or equal to the distance between the outer side wall of the head end of the core shaft and the inner side wall of the shell. By means of the arrangement, the discharging speeds of all positions of the annular gap between the shell and the mandrel are consistent, a product of a cylindrical structure can be machined, the product of the cylindrical structure can be formed into a flat sheet shape after being cut in the later period, and under the condition that the output speed of extrusion equipment and the thickness of the machined product are certain, the product is not prone to falling off. Compared with a flat forming die in the prior art, the width of a product is increased, and the extrusion forming efficiency and yield are improved.

Description

technical field [0001] The invention relates to the technical field of mechanical devices, in particular to an extrusion molding device and an extruder. Background technique [0002] With the improvement of people's awareness of dietary nutrition, health and environmental protection, plant-based foods represented by "plant meat" have attracted widespread attention at home and abroad, such as artificial meat processed from protein-rich soybean products. [0003] At present, the "vegetable meat" raw material is generally extruded by an extruder, so that it has a fiber structure similar to animal meat and a soft, elastic and tough taste. The extrusion die of the extruder is the main part of the extruder equipment. The long cooling flat extrusion die in the prior art can only process flat sheet products. In order to ensure the cooling effect in the molding process, the processed products The thickness of the extrusion die should not be too large, and due to the boundary effect,...

AI Technical Summary

Problems solved by technology

The extrusion die of the extruder is the main part of the extruder equipment. The long cooling flat extrusion die in the prior art can only process flat sheet products. In order to ensure the cooling effect in the molding process, the processed products The thickness of the extrusion die should not be too large, and due to the boundary effect, the middle position of the flow channel of the extrusion die is discharged quickly, and the discharge at both ends is slow, so the width of the discharge port of the extrusion die cannot be too large

If the width of the outlet is large, it will cause cracking of the processed product and affect the integrity of the product, so the width and thickness of the product processed by the extrusion die are limited, which in turn limits the production efficiency and output of the extrusion die

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