A bidirectional high-efficiency stretching device for capacitor films

Abstract

The invention discloses a film double-way efficient stretching device for a capacitor. The film double-way efficient stretching device for the capacitor comprises a workbench and a clamping base; sliding rails are arranged on the upper surface of the workbench; the intersection part between the sliding rails is fixedly arranged on the upper surface of the workbench by a hinged base; the clamping base comprises a bottom plate; a pressing plate is arranged at the upper end of the bottom plate; the bottom plate is connected with the pressing plate through a vertical rod; a first compression spring sleeves the outer side of the vertical rod; the clamping base is in sliding connection with the sliding rails through a sliding base arranged at the bottom end of the clamping base; the two sides ofthe two sliding rails are connected through two screw rods; a second compression spring sleeves the outer side of each screw rod; nuts are arranged at the two ends of each screw rod; a group of parallel guide rods are arranged on the upper surface of the workbench; the guide rods are directly connected with a hydraulic cylinder and penetrate through the hydraulic cylinder; and uniform stretchingis conducted through double-way stretching effect and by a symmetrical mode, the specific quantity of stretching on a plane is controlled as much as possible and the uniform deformation stretching aims are fulfilled.

Description

technical field [0001] The invention relates to the technical field of stretching devices, in particular to a bidirectional high-efficiency stretching device for capacitor films. Background technique [0002] In the existing technical field, most capacitors, especially for medium and low voltage power capacitors, need to widely use thin film dielectric materials, among which BOPPC is the most widely used, and high-quality BOPPC films for capacitors should have the following five aspects The main properties: high dielectric breakdown strength, low dielectric loss, controllable surface roughness, small thickness deviation and good film roll conditions. The acquisition of these properties not only depends on the performance, production and processing conditions of the polypropylene resin used in the production of BOPPC, but also ultimately determines the performance of capacitors produced using BOPPC films. [0003] Therefore, under the existing technical conditions, the stret...

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