Preheating mechanism for metallized film processing

Abstract

The invention discloses a preheating mechanism for metallized film processing. The preheating mechanism comprises a connecting rod transmission mechanism, a heater and a first retractor device, wherein the connecting rod transmission mechanism includes a fixed rod and a transmission rod; one end, at a high position, of the fixed rod is disposed on an inner top wall of a vacuum chamber through a second lifting mechanism; the other end, at a low position, of the fixed rod is hinged with one end, at a high position, of the transmission rod; a heater is mounted on the other end, at a low position, of the transmission rod; a fixed end of the first retractor device is hinged on a connection region of the second lifting mechanism and the fixed rod, and the other end of the first retractor device is hinged with the transmission rod. The preheating mechanism has the advantages of uniform preheating and adjustable preheating amount.

Description

technical field [0001] The invention relates to the technical field of coating machines, in particular to a preheating mechanism for metallized film processing. Background technique [0002] The metallized film is the main part of the capacitor, and its quality directly affects the service life of the capacitor. At present, the metallized film is mainly processed and prepared by a vacuum coating machine, including an insulating film feeding mechanism, a coating mechanism, and a film winding mechanism after the metal layer is plated. Yet the vacuum coater of prior art has the following weak points: [0003] In the existing vacuum coating machine, after being fed by the feeding device, if the film is directly coated by the coating mechanism, the temperature on the surface of the insulating film is low, and the stability of the coating is poor. The solution is to improve the interfacial effect on the surface by setting a preheating device. However, most of the preheating dev...

AI Technical Summary

Problems solved by technology

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

[0004] During the transportation of the insulating film, if the tension is not uniform, the phenomenon of floating will be found, which will affect the normal transmission of the film

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