Automatic bending and wire-wrapping process for copper sheet shielding layer of mutual inductor

Abstract

The invention discloses an automatic bending and wire wrapping process for a copper sheet shielding layer of a mutual inductor, and belongs to the field of mutual inductor processing. The process comprises the following steps: 1, automatically unwinding a copper sheet; 2, automatically cutting the copper sheet; 3, automatically bending the two sides of the copper sheet; 4, mounting a lead at the bent part of the copper sheet; 5, transversely and longitudinally flattening the copper sheet to wrap the lead; 6, cutting off redundant leads in the copper sheet; 7, automatically laying off. The method is ingenious in process design and smooth in procedure connection, the purpose of automatically machining the copper sheet shielding layer of the mutual inductor is achieved, manual operation for bending the covered wire is not needed, one person can be responsible for one production line, the yield and the productivity are greatly improved, and the method has remarkable economic value.

Description

technical field [0001] The invention relates to the field of transformer processing, in particular to an automatic bending process of a copper shielding layer of a transformer. Background technique [0002] Transformer, also known as instrument transformer, is a general term for current transformer and voltage transformer. It can change high voltage into low voltage and high current into small current for measurement or protection system. Its function is mainly to convert high voltage or high current into standard low voltage (100V) or standard small current (5A or 1A, both refer to rated value) in proportion, so as to realize the standardization and miniaturization of measuring instruments, protection equipment and automatic control equipment. change. At the same time, the transformer can also be used to isolate the high-voltage system to ensure the safety of people and equipment. The copper skin of the transformer has two functions: 1. Internally: uniform electric field...

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Problems solved by technology

[0003] as attached Figure 8-10 As shown, at present, the bending of copper skin is performed manually by a person. First, the rolled copper skin is automatically cut into copper skins of the required size, and then the two sides of the copper skin are manually bent in the length direction using a jig. Then place the lead wire in the bent part, then flatten the bent part, wrap the lead wire in the bent part of the copper skin, play the role of grounding or connecting with other components, so as to facilitate the subsequent processing of the transformer and realize automatic production; One person can only bend about 100 pieces per day. The copper sheet is a whole roll. It is first cut into the required size and then processed. The operation is cumbersome, the efficiency is low, time-consuming and labor-intensive. In order to improve the efficiency, a transformer needs to be customized. Automatic bending and wrapping machine for copper shielding layer to solve the above technical problems

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