Wire fixing and tensioning device for winding of transformer coil

Abstract

The invention discloses a wire fixing and tensioning device for winding of a transformer coil. The wire fixing and tensioning device comprises a base, a support part located at the base, a wire coil shaft arranged on the support part and a wire buffering mechanism. The wire buffering mechanism comprises two first pull rods and two second pull rods; the two first pull rods are arranged in parallel; one end of each first pull rod is connected with the base while the other ends of the two first pull rods are connected through a first cross rod; the first cross rod is provided with a pulley; one end of each second pull rod is movably connected with the first pull rods while the other end of each second pull rod is connected with the base; the first pull rods, the second pull rods and the base form a triangular support; a second cross rod is also arranged between the two first pull rods; and a spring is arranged between the second cross rod and the base. Compared with the prior art, the wire fixing and tensioning device for winding of the transformer coil is simple in structure and reasonable in layout, can solve the problem of wire coil fixation interference of high-capacity products, can provide enough wire tensile force during the coil winding process, and increases the winding quality of the coil.

Description

Technical field [0001] The invention belongs to the field of power transformer manufacturing, and relates to a wire fixing and tensioning device when winding a large-capacity transformer coil. Background technique [0002] When winding the transformer, the wire needs to be fixed on a special frame. The existing wire fixing frame needs to purchase a customized lead frame from the manufacturer. Because the customized lead frame is equipped with many fixing points and is relatively dense, the coil is relatively large when winding large-capacity transformers. Large, easy to interfere with other fixed points when fixed, and difficult to carry. [0003] Generally, the spool shaft on the lead frame is equipped with a tensioning device, and the wire can be tightened by controlling the speed of the spool shaft. However, the wire that has been discharged may still be insufficiently tight, which affects the winding quality of the coil. Summary of the invention [0004] Objective of the invent...

AI Technical Summary

Problems solved by technology

[0002] When the transformer is wound, the wires need to be fixed on a special frame. The existing wire fixing frame needs to be customized by the purchaser. Since the custom-made wire frame has many fixed points and is relatively dense, when winding a large-capacity transformer, the wire reel is relatively heavy. Large, it is easy to interfere with other fixed points when fixing, and it is not easy to carry

[0003] Generally, the wire reel shaft on the lead frame is equipped with a tensioning device, which can tighten the wire by controlling the speed of the wire reel shaft, but the released wire may still have the problem of not being tight enough, which affects the winding quality of the coil

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