Electromagnetic heating device for an injection molding machine

CN224334974UActive Publication Date: 2026-06-09NINGBO TIANMAO PLASTIC PRODUCTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO TIANMAO PLASTIC PRODUCTS CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Traditional injection molding machine barrel heating devices have low thermal efficiency and are inconvenient to maintain, while electromagnetic heating devices are fixed in place, making disassembly and assembly difficult.

Method used

It adopts multiple independently set electromagnetic heating elements, each of which includes independent upper and lower heating tubes. It is heated in sections by alternating magnetic field, and the heating elements are not fixedly connected to the mixing tube, which facilitates disassembly and maintenance.

Benefits of technology

It improves heating efficiency, reduces power consumption, and simplifies the maintenance and replacement process of electromagnetic heating devices.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224334974U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of heating device discloses an electromagnetic heating device for injection molding machine, including material pipe protective sleeve shell, mix material pipe and electromagnetic heating group, the mix material pipe sets up in material pipe protective sleeve shell inner chamber, electromagnetic heating group sets up in material pipe protective sleeve shell, electromagnetic heating group includes first electromagnetic heating part, second electromagnetic heating part and third electromagnetic heating part, first electromagnetic heating part The second electromagnetic heating part and third electromagnetic heating part are all with control terminal electricity is connected. The utility model is arranged with multiple electromagnetic heating parts on mix material pipe, and each group of electromagnetic heating parts includes independently arranged heating pipe up and down, and the two poles of each heating pipe are connected with external high frequency power respectively, so that the electromagnetic coil generates alternating magnetic field, and the heat pipe generates high heat under the action of alternating magnetic field and transmits to mix material pipe, heats the material in different mixing stages in mix material pipe.
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