Method for automatically adjusting mold during lamination of transformer iron core

Abstract

The invention discloses a method for automatically adjusting a mold during lamination of a transformer iron core, and the method uses automatic mold adjusting equipment which comprises a main body unit, a fixed mold bearing unit and a movable mold moving unit, wherein the main body unit comprises a bottom plate, a driving motor arranged on the bottom plate and a quincunx-shaped rotating disc arranged at the output end of the driving motor, and the fixed mold bearing unit comprises a bearing plate and a plurality of fixed mold rods arranged on the bearing plate; a plurality of telescopic air cylinders used for lifting the bearing plate are symmetrically and fixedly installed on the bottom plate. By continuously adjusting the directions of the movable mold rods, stacked silicon steel sheets are extruded to be attached to the inner sides of the fixed mold rods, so that layers of silicon steel sheet iron cores are stacked more tightly, the height error between the layers is greatly reduced, the whole adjusting process is very simple, the automation degree is high, and the production efficiency is improved. And the iron core stacking efficiency of workers is greatly improved.

Description

technical field [0001] The invention relates to the technical field of transformer production and processing, in particular to an automatic mold adjustment method when a transformer iron core is laminated. Background technique [0002] The iron core of the transformer is one of the main components of the transformer. When the transformer is working, the alternating magnetic flux passes through the iron core. Eddy current, the eddy current makes the iron core heat up, resulting in eddy current loss, which is proportional to the square of the thickness of the iron core. In order to reduce the eddy current loss, the whole iron core is divided into thin sheets, and the sheets are separated by insulating materials; at the same time, silicon is infiltrated into the steel sheet of the iron core material to form a silicon steel sheet to increase the resistance of the material, which is convenient to reduce the eddy current loss. [0003] However, in order to ensure the tightness of...

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Problems solved by technology

[0003] When the iron core is stacked, the mold is often used to limit the position. However, in order to ensure the tightness of the iron core and the height difference between the upper and lower layers after the iron core is stacked, it is necessary to adjust the mold while the iron core is stacked. High proficiency requirements for adjustment operations also lead to low efficiency of manual stacking of iron cores

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