Electromagnetic induction heating device

Abstract

The invention provides an electromagnetic induction heating device comprising a metal pipe and an induction body, wherein the induction body comprises induction coils which are axially arrayed; the periphery of the metal pipe is provided with a nonmetal material insulating layer; the induction body encircles the excircle of the nonmetal material insulating layer; each induction coil of the induction body is in a consistent disconnecting shape along an axial direction, and each disconnected induction coil is correspondingly butted through a connecting buckle to form a closed induction coil; the periphery of the induction body is provided with a double half type plastic jacket comprising a left plastic jacket and a right plastic jacket, wherein the left plastic jacket and the right plastic jacket are both provided with cooling water cavities, and the inner walls of the left plastic jacket and the right plastic jacket are provided with conductive non-magnetic material layers. The invention realizes simplified and modularized assembly and disassembly of the induction coils and prevents the inconvenient disassembly in electromagnetic heating application.

Description

technical field [0001] The invention relates to an electromagnetic induction heating device, which belongs to the technical field of electromagnetic heating equipment. Background technique [0002] Electromagnetic heating, as a new heating method, has been used for many years; with the maturity of technology and the expansion of energy-saving demand, the advantages of electromagnetic heating energy-saving have been reflected; the wide application of plastics has led to more and more plastic processing enterprises; in the plastic molding process In the process, a large amount of heat energy is needed to melt the plastic raw material and then inject it into the mold for molding; electromagnetic heating is an electromagnetic induction heating mode, and the rectifier circuit converts the 50 / 60Hz AC voltage into a DC voltage, and then converts the DC voltage into a DC voltage through a control circuit. High-frequency voltage with a frequency of 20-40KHz, the high-speed changing c...

AI Technical Summary

Problems solved by technology

[0004] 1) Leakage of the feed nozzle often occurs, causing the induction coil to be stuck and unable to be separated, and the coil can only be damaged and reinstalled;

[0005] 2) When there is a problem with the material tube and the screw, and the material tube needs to be removed for baking, all the inductance wires must be removed, and the insulation layer must also be completely removed; re-installation will cause material loss, and it will be labor-intensive and time-consuming;

[0006] 3) The stable operation of the electromagnetic induction heating device is closely related to the inductance of the induction coil, and re-winding of the coil requires re-adjustment, which increases the workload;

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