Coating mechanism for metalized film processing

Abstract

The invention discloses a coating mechanism for metalized film processing. According to the coating mechanism for metalized film processing, a first evaporation coating device and a second evaporation coating device are sequentially arranged from front to back according to the technological process. The coating mechanism comprises the first evaporation coating device. The first evaporation coating device comprises a first evaporation coating drum and a first evaporation boat. The first evaporation boat is arranged below the first evaporation coating drum. The top opening area of the first evaporation boat is provided with a first movable plate assembly used for adjusting the size of an opening of the first evaporation boat. The second evaporation coating device comprises a second evaporation coating drum, a second evaporation boat and a shielding device. The second evaporation boat is arranged below the second evaporation coating drum. The top opening area of the second evaporation boat is provided with a second movable plate assembly used for adjusting the size of an opening of the second evaporation boat. The shielding device is used for limiting the width and the area of the fallen metal evaporated from the opening of the second evaporation boat on an insulated film. The coating mechanism for metalized film processing has the advantages of being suitable for processing of multiple types of films and achieving that the coating thickness is adjustable.

Description

Technical field [0001] The invention relates to the technical field of coating machines, in particular to a coating mechanism for metalized thin film processing. Background technique [0002] As the main component of the capacitor, the quality of the metalized film directly affects the service life of the capacitor. At present, metallized films are mainly prepared by vacuum coating machines, including an insulating film feeding mechanism, a coating mechanism, and a film winding mechanism after plating a metal layer. However, the prior art vacuum coating machine has the following shortcomings: [0003] (2) If the existing vacuum coating machine is directly coated by the coating mechanism after the feeding device is fed, the temperature of the insulating film surface is lower and the coating stability is poor. The solution is to improve the interface effect of the surface by setting a preheating device. However, most of the preheating devices are fixed and not adjustable, resultin...

AI Technical Summary

Problems solved by technology

[0003] (2) If the existing vacuum coating machine is directly coated by the coating mechanism after being fed by the feeding device, the temperature on the surface of the insulating film is low and the stability of the coating is poor

However, most of the preheating devices are fixed and cannot be adjusted, resulting in uneven preheating

Although a vacuum coating equipment disclosed in the prior art such as patent application 201520245919.7 provides a heating device that can move along an arc guide rail and realizes the angle adjustment of the heating device through a metal flexible hose, the structure uses metal flexible The physical properties of the hose itself are bent, which is inconvenient to realize automatic adjustment; in addition, the movement of the arc-shaped guide rail can drive the movement of the heating device to achieve linear two-dimensional adjustment, which cannot meet three-dimensional three-dimensional adjustment, and it is difficult to realize the control of preheating intensity. Preheating uniformity also needs to be improved

Images