A discharge device for an extruder

Abstract

The invention relates to a novel discharge device of a bulking machine. The novel discharge device of the bulking machine comprises a bulking cavity, wherein one end of the bulking cavity is connected with a discharge port, a door body capable of moving axially to communicate or close the bulking cavity and the discharge port is arranged at the joint part of the bulking cavity and the discharge port, a cutting device fitted with the door body is arranged on the end face, on one side of the bulking cavity, of the door body, the cutting device and the door body synchronously move axially, and the cutting device peripherally rotates relatively to the door body. The discharge device of the bulking machine is designed by aiming at the problems and the risks in the bulking process, fulfills the purposes of reducing labor intensity and improving operation convenience and operational stability of equipment, and also provides a precondition for automated control of the bulking machine at the same time.

Description

technical field [0001] The invention relates to a novel extruder discharge device, which belongs to the field of feed, oil and food processing. Background technique [0002] There are many types of extruders. According to different structures, it can be divided into single-screw extruder and twin-screw extruder. No matter the single-screw extruder or the twin-screw extruder, the die hole of the discharge device is required for the molding of the extruded product. Among them, the discharge device adopts a multi-hole flat die, and the discharge device is generally connected with the expansion chamber through bolts or hoops. This structural form mainly has the following problems: every time the machine is shut down, it is necessary to remove the hoop or bolts to clean the material in the discharge puffing chamber, so as to facilitate the next start-up; The large internal and external pressure difference brings hidden dangers to the safety of operators, often causing high-tem...

AI Technical Summary

Problems solved by technology

This structural form mainly has the following problems: every time the machine is shut down, it is necessary to remove the hoop or bolts to clean the material in the discharge puffing chamber, so as to facilitate the next start-up; The large internal and external pressure difference brings hidden dangers to the safety of operators, often causing high-temperature burns or the discharge device flying out due to internal and external pressure differences

For occasions where the formula or processing requirements change frequently, the number of startups and shutdowns per day is high, resulting in lower working efficiency of the extruder and higher production costs

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