Deviation rectification and film feeding mechanism for vacuum coating equipment

Abstract

The invention provides a deviation rectification and film feeding mechanism for vacuum coating equipment. The deviation rectification and film feeding mechanism comprises an installation plate, a film feeding unit and a thin film deviation rectification unit, wherein the film feeding unit and the thin film deviation rectification unit are arranged on the installation plate; the thin film deviation rectification unit comprises a transverse plate fixed to the installation plate, the transverse plate is provided with two symmetrically-arranged supports, a film feeding roller is erected between the two supports, and one support is provided with a second driving piece for driving the film feeding roller to move; and a connecting rod is arranged on one side of the transverse plate and provided with two symmetrically-arranged positioning blocks, and photoelectric sensors are arranged on the positioning blocks. By means of the deviation rectification and film feeding mechanism, the photoelectric sensors are used for keeping detection on the positions of thin films in a conveying device, continuous, real-time and flexible adjustment of the stretching-out length of a push rod of an air cylinder is achieved, the inclining state of the film feeding roller is continuously adjusted accordingly, and the thin films are located within an appropriate position scope all the time.

Description

technical field [0001] The invention relates to the technical field of metallized film manufacturing, in particular to a deflection-correcting and film-feeding mechanism of a vacuum coating machine. Background technique [0002] With the development of modern film science and technology, especially the large-scale industrial application of metallized films for capacitors and packaging, a huge film production and film processing industry has been formed in the world. The demand for household appliances, electrical appliances, electronic products, and packaging products is increasing rapidly, which leads to an increasing demand for metallized films, resulting in an increasingly urgent demand for high-efficiency, high-performance, and multi-functional film evaporation equipment. [0003] Thin film evaporation equipment integrates multidisciplinary technologies such as machinery, vacuum, coating, refrigeration, and automatic control. It evaporates aluminum or zinc onto plastic f...

AI Technical Summary

Problems solved by technology

Excessively offset film substrates may interfere with the inner walls of the equipment on both sides of the edge, damage the film, affect the normal operation of the equipment, and affect the regularity of the film winding

[0005] Most of the existing deviation correction devices adopt the open-loop control method, that is, people adjust the deviation correction device according to the specific deflection degree and direction produced by the conveyor belt in actual use, and then observe the operation until the deflection produced by the adjusted conveyor belt does not affect the use of the equipment. , this kind of deviation correction device mostly relies on experience, the adjustment period is long, the cost is high, and it does not meet the requirements of modern production

There are also some deviation correction devices that use the position of the moving winding device to achieve deviation correction. This type of deviation correction device is bulky, complex in structure, and expensive to manufacture. The deviation correction is an intermittent process. When the sensitivity setting is high, it is easy to shake, and when the sensitivity setting is low, the film swings Excessive range

In particular, it is not easy to implement through technical transformation of existing equipment

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