Punching Gap Process Of Paperboard Insulating Collar With Spacers

The material of the insulating ring is insulating cardboard. Due to the different transformer models and capacities, the size of the blocks is widely dispersed. The inner and outer circles can be produced by the circular shear, but the central gap is inconvenient to manufacture. If each gap corresponds to one pair of mold, it will inevitably cause a huge investment in molds. At the same time, due to the limited production volume of transformers, it is not suitable to use the only size of mold.

Due to the fact that the size of the notch in the middle of the iron yoke insulation ring is widely dispersed, a simple and easy punching method is proposed: the punching drawing of the transformer core insulation molding is a common rectangular hole punching die for small and medium-sized transformer iron yoke insulation ring.