Epoxy casting mold with adjustable casting height and easy-to-disengage inner mold body

Abstract

The invention discloses an epoxy casting mold with the adjustable casting height and an easy-to-disengage inner mold body. The epoxy casting mold comprises a bottom plate, the inner mold body, an outer mold body, an upper end cover and a pressing part. The inner mold body and the outer mold body are installed on the bottom plate, the upper end cover is located between the inner mold body and the outer mold body, and the pressing part is located above the outer mold body. The tops of long threaded rods installed on the bottom plate are inserted into first through holes of the pressing part, and upper nuts and lower nuts for clamping the pressing part are screwed to the long threaded rods. The tops of short threaded rods screwed to the upper end cover are inserted into second through holes of the pressing part, and upper nuts and lower nuts for clamping the pressing part are screwed to the short threaded rods. Lifting of the long threaded rods for the pressing part and the short threaded rods are matched to adjust the height of the upper end cover, the position of the upper end cover is adjusted at will within a certain range accordingly, and then the epoxy resin casting height of various transformers is met. The inner mold body is formed by coiling a board in a barrel shape, and a certain gap is formed between the two ends of the board. After casting is completed, a worker can conveniently dismount the short threaded rods so as to remove attachments on the short threaded rods, and the inner mold body and a finished product can be conveniently disengaged.

Description

Technical field: [0001] The invention relates to the technical field of transformers, in particular to an epoxy casting mold. Background technique: [0002] At present, the demand for large-capacity epoxy resin cast dry-type transformers in the power equipment market is increasing. Known large-capacity epoxy resin pouring dry-type transformer with hard mold. With the continuous improvement of the manufacturing level and production capacity of resin cast dry-type transformers in enterprises, the traditional hard casting molds for resin cast dry-type transformer coils are no longer suitable for the production and manufacture of large-capacity epoxy resin cast dry-type transformer high-voltage coils. High requirements, long manufacturing and processing cycle, high cost, large land occupation and other issues have become a major bottleneck affecting various transformer manufacturing enterprises to reduce costs, increase production capacity and benefit. [0003] In order to sol...

AI Technical Summary

Problems solved by technology

[0004] For epoxy resin casting dry-type transformer casting molds, in order to reduce transformer manufacturing costs, improve production capacity and efficiency, enterprises omit the use of upper end caps in the mold, resulting in the lack of upper end caps and lower end faces of epoxy resin in liquid state during the casting process. Its extrusion makes the final epoxy resin molded on the transformer not tight

In addition, during the casting process of the mold lacking the upper end cover, it is difficult to prevent the surrounding impurities from entering the liquid epoxy resin, thereby affecting the casting effect

Also, the lack of a mold for the upper end cap resulted in an uneven top surface of the epoxy molded on the transformer

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