Thread disassembly device of extruder screw rod for thermosetting powder coating

Abstract

The invention discloses a thread disassembly device of an extruder screw rod for thermosetting powder coating. The device comprises an electric control device, a bracket, a fixture, an electric heating system, an opening / closing mechanism, an ejector rod, an ejector rod support frame and a driving mechanism; the fixture is a cylinder transversely arranged; the electric heating system is mounted on the fixture; the internal space of the cylinder is matched with a screw rod to be disassembled to clamp the screw rod to be disassembled inside; the cylinder is mainly formed by hinging an upper half cylinder with a lower half cylinder through respective one side edges; the lower half cylinder is arranged on the top surface of the bracket; the opening / closing mechanism is arranged between two ends of the other side edges of the upper half cylinder and the lower half cylinder, and is connected with the driving mechanism; the ejector rod is transversely arranged, and is coaxial with the fixture; one end of the ejector rod is connected with the driving mechanism, and is supported through the ejector rod support frame; and the other end of the ejector rod is ejected against the rod end of the screw rod to be disassembled. The device is convenient and safe in use, cannot damage the mechanical performance of the screw rod, improves the disassembly efficiency, and is simple and controllable in use process.

Description

technical field [0001] The invention relates to a thread removal device for extruder screw for thermosetting powder coating. Background technique [0002] During the production process of thermosetting powder coatings, a screw extruder is required to melt and mix the raw materials. After the extruder has been used for a period of time, the screw teeth on the screw usually need to be replaced due to the wear of the screw teeth. At present, the most common replacement method in this industry is: use high-temperature flame to burn the screw to destroy the powder material adhered between the screw teeth and the screw shaft, and then remove the screw teeth from the screw by knocking or other methods. [0003] However, the above-mentioned replacement method has the following disadvantages: [0004] (1) High temperature burning and knocking on the screw will damage the mechanical properties of the screw. [0005] ⑵Remove the thread on the screw by physical knocking, and the disas...

AI Technical Summary

Problems solved by technology

[0004] (1) High temperature burning and knocking on the screw will damage the mechanical properties of the screw

[0005] ⑵The thread on the screw is removed by physical knocking, and the disassembly efficiency is low

[0006] (3) For chemical companies, there are strict restrictions on the use of gas and open flames, which will cause inconvenience in use, and there are also potential safety hazards in the use of gas and open flames

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