Medium frequency induction heating device for glass mold

Abstract

The invention discloses a medium frequency induction heating device for a glass mold and belongs to the technical field of auxiliary facilities for manufacturing glass molds. The medium frequency induction heating device comprises a rack, wherein a table is arranged on the top of the rack; a water recycling and cooling mechanism cavity is formed below the table; a mold mounting seat is arranged on the surface of the table; a medium frequency induction heating box lifting mechanism is fixed on the table; a medium frequency induction heating box is arranged on the medium frequency induction heating box lifting mechanism; coils of the medium frequency induction heating box are positioned outside a medium frequency induction heating box body, are tubular bodies with cavities and form a tube-shaped structure in a mode of repeatedly bending a plurality of semi circles or a plurality of circles; and a water recycling and cooling mechanism is arranged in the water recycling and cooling mechanism cavity and connected with the coils, and the water recycling and cooling mechanism and the cavities form a water cooling and recycling loop. The medium frequency induction heating device has the advantages that energy is saved, the operation efficiency is improved, a good protecting effect on the coils is achieved, and the medium frequency induction heating device has a relatively concise structure.

Description

technical field [0001] The invention belongs to the technical field of auxiliary facilities for manufacturing glass molds, and in particular relates to a medium-frequency induction heating device for glass molds. Background technique [0002] The aforementioned intermediate frequency induction heating heats molds made of magnetically permeable materials such as carbon steel (also known as mold steel in the industry), copper alloys, and stainless steel in the form of heat generated by electromagnetic eddy currents. As is well known in the mold manufacturing industry, since the glass mold is in service, that is, the mold cavity is in direct contact with the molten glass melt frequently during use, it is subject to chemical erosion, wear and cold and heat alternating stress of the glass melt. At the same time, due to the long-term high temperature environment of about 500-800 ° C, the mold cavity of the glass mold will appear such as fatigue damage, oxidation and corrosion dama...

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Problems solved by technology

[0007] However, the technical solution recommended by the above-mentioned CN201039510Y has the following shortcomings: First, due to the need to use the advance and retreat oil cylinder and the lifting oil cylinder in the process of mold preheating, the advance and retreat oil cylinder ensures that the preheated mold enters or exits in a horizontal motion corresponding to the intermediate frequency Below the heating chamber of the heating device, the preheated mold is lifted into the aforementioned heating chamber or withdrawn from the heating chamber by the lifting cylinder, which not only increases the number of power mechanisms, but also is not conducive to energy saving , because the work of advancing and retreating and lifting the cylinder needs to be supported by the power supply; secondly, because every time the preheating is performed, the preheated mold needs to be translated from side to side and lifted up and down once every time, so there are many action links, which affect the working efficiency, which is not enough Increase the output of mold preheating per unit time, resulting in the risk of slowdown in the subsequent spray welding work; third, because the coil of the intermediate frequency heating device cannot be effectively protected and the patent scheme does not give protection enlightenment, so It is easily damaged by the heat emitted by the hot mold; Fourth, because the device carrying the mold is a mobile car structure, it is relatively complicated, which increases the difficulty of manufacturing and installation

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