Winding follow-up pinch roller device for thin-film capacitor winding machine

Abstract

The invention discloses a winding follow-up pinch roller device for a thin-film capacitor winding machine, and belongs to the field of thin film winding devices. The device is installed on a substrate, and is located nearby a winding mechanism. The device comprises a sliding bottom plate which is slidingly installed on the substrate, a follow-up drive mechanism which is used for driving the sliding bottom plate to move, and an air guide mechanism and a pinch roller mechanism which are both installed on the sliding bottom plate. The pinch roller mechanism employs the angle sensor for detectingthe swinging angle of a pinch roller in a metal film winding process in real time, and controls the pinch roller to follow to withdraw with the increase of the diameter of a metal film coil through the detected swinging angle signal. Meanwhile, a low-friction cylinder is used for controlling the pressure of the pinch roller on the metal film coil, and enables the direction and size of the pressureof the pinch roller on the metal film coil not to change severely with the changing of the diameter of the coil. Moreover, the follow-up of the air guide mechanism and the pinch roller mechanism enables the change of the distance between the air guide mechanism and the pinch roller mechanism to be smaller, thereby enabling the metal film to be flatly wound, and improving the quality stability ofa thin-film capacitor.

Description

technical field [0001] The invention relates to a film capacitor winding device, more specifically, to a film capacitor winding machine winding follower pressure roller device. Background technique [0002] Film capacitors are excellent capacitors due to their many excellent characteristics. Its main characteristics are as follows: non-polarity, high insulation resistance, excellent frequency characteristics (broad frequency response), and low dielectric loss. Based on the above advantages, film capacitors are widely used in analog circuits. Especially in the part where the signals are cross-connected, capacitors with good frequency characteristics and extremely low dielectric loss must be used to ensure that the signal will not be distorted when it is transmitted. [0003] The film capacitor winding machine is the main equipment used in the production and manufacturing process of film capacitors. It is formed by arranging multiple rollers, and the metal film is wound on t...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the existing film capacitor winding machine winding pressure wheel device that affects the film winding quality due to changes in the pressure and pressure direction during the working process, and to provide a film capacitor winding machine winding Follow the pressure roller device, adopt the technical solution of the present invention, use the angle sensor to detect the swing angle of the pressure roller during the metal film winding process in real time, and control the pressure roller to follow the backward movement with the increase of the diameter of the metal film roll through the detected swing angle signal, At the same time, the low-friction cylinder is used to control the pressure of the pressure roller on the metal film roll, so that the pressure direction and size of the pressure wheel on the metal film roll will not change greatly with the change of the winding diameter, and the air guide mechanism and the pressure wheel are used The mechanism follows, so that the distance between the air conduction mechanism and the winding mechanism changes little, so that the metal film can be wound smoothly, and the quality stability of the film capacitor is improved.

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