Epoxy casting mold with height-adjustable upper end cover

Abstract

The invention discloses an epoxy casting mold with a height-adjustable upper end cover. The epoxy casting mold comprises a bottom plate (10), an outer mold (20), an inner mold (30), a branching terminal mold (40) and the upper end cover (50), wherein protrusion parts (31) are fixedly mounted on the top surface of the inner mold (30); a through hole is formed in each protrusion part (31); a thread rod (32) is inserted into each through hole; nuts (33 and 34) are connected to each thread rod (32) through threads and are positioned above and below the corresponding protrusion part (31); the lower end of each thread rod (32) is fixedly connected with the upper end cover (50); the upper end cover (50) sleeves the inner mold (30) and can lift along the outer side surface of the inner mold (30). According to the technical scheme, the phenomenon that molds with the corresponding casting heights are prepared due to the difference of the casting heights of epoxy resin is avoided, the production cost is greatly reduced, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to an epoxy casting mold with an adjustable upper end cover. 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 b...

AI Technical Summary

Problems solved by technology

Although this utility model has the advantages of simple structure, lightness and applicability, and good optional accessories, this kind of mold lacks an upper end cover, which can cause the top surface of the epoxy resin molded on the transformer to be uneven, and the mold lacking an upper end cover During the pouring process, the liquid epoxy resin in the mold lacks the extrusion of the lower end face of the upper end cover, which can lead to the lack of tightness of the epoxy resin finally molded on the transformer

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

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