Unwinding tension control device of wound film capacitor

A tension control and film capacitor technology, applied in the direction of film/thick film capacitors, wire wound capacitors, wire wound capacitor machines, etc., can solve the problems of loose film surface, poor tension control effect, high cost, low cost and simple structure , good effect

Active Publication Date: 2015-03-25
TONGLING CITY START ELECTRONICS MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Poor control of the unwinding tension during the winding process will cause the film surface to loosen, which will directly affect the electrical properties of the film capacitor
The existing unwinding tension control methods include: 1. Automatic method, using floating roller or tracking arm to detect tension, closed-loop control servo syst

Method used

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  • Unwinding tension control device of wound film capacitor

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Embodiment Construction

[0011] Referring to the accompanying drawings, an unwinding tension control device for winding film capacitors includes a frame 1, an unwinding shaft 2, a fixed ring 3 and a movable ring 4, the fixed ring 3 is fixed on the frame 1, and the fixed ring 3- A movable ring 4 is provided on the side, and the movable ring 4 can rotate synchronously or asynchronously with the unwinding shaft 2. A friction ring 5 is provided between the movable ring 4 and the fixed ring 3, and a spring 6 is provided on one side of the movable ring 4. The spring 6 Connect the adjusting nut 7, the adjusting nut 7 is installed on one end of the unwinding shaft 2, the unwinding shaft 2 is provided with a screw thread that matches the adjusting nut 7, and the material of the friction ring 5 is a wool felt material. When the present invention is used, the film roll 8 of the film capacitor is inserted into the unwinding shaft 2 and locked, the film on the film roll 8 is led to the core of the film capacitor to...

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Abstract

The invention discloses an unwinding tension control device of a wound film capacitor. The unwinding tension control device comprises a rack, an unwinding shaft, a fixed ring and a movable ring. The fixed ring is fixed to the rack, the movable ring is arranged on one side of the fixed ring and can rotate synchronously or asynchronously along with the unwinding shaft, a friction ring is arranged between the movable ring and the fixed ring, a spring is arranged on one side of the movable ring and connected with an adjusting nut, the adjusting nut is installed at one end of the unwinding shaft, and the unwinding shaft is provided with threads matched with the adjusting nut. According to the unwinding tension control device of the wound film capacitor, torque is transmitted to the unwinding shaft by generating friction force so as to control unwinding tension, namely, the torque is transmitted to the unwinding shaft through friction between the fixed ring and the movable ring so as to control the unwinding tension; the movable ring and the unwinding shaft can rotate asynchronously, so that it is guaranteed that the torque transmitted to the unwinding shaft is constant, and the tension control effect is good. The unwinding tension control device is simple in structure and low in cost.

Description

technical field [0001] The invention relates to the technical field of film capacitor production equipment, in particular to an unwinding tension control device for winding film capacitors. Background technique [0002] In the manufacturing process of film dielectric capacitors, core winding is a very critical production process. This process is to put the metallized film roll or aluminum film and light film roll on the unwinding shaft, and the film on the film roll is wound on the winding mandrel by the guide roller. After the winding mandrel rotates a certain number of times, it is wound up. into a film capacitor core. Poor control of the unwinding tension during the winding process will cause the film surface to loosen, which will directly affect the electrical properties of the film capacitor. The existing unwinding tension control methods include: 1. Automatic method, using floating roller or tracking arm to detect tension, closed-loop control servo system to realize ...

Claims

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Application Information

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IPC IPC(8): H01G13/02H01G4/32H01G4/33
Inventor 万广文钱立文
Owner TONGLING CITY START ELECTRONICS MFG
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