Film coating device for light guide plates

Abstract

The invention provides a film coating device for light guide plates. The film coating device for the light guide plates comprises a machine frame, a front-end conveying mechanism, a film coating mechanism, a rear-end conveying mechanism and side-edge cleaning mechanisms, the front-end conveying mechanism is arranged at the end portion of the machine frame, the film coating mechanism comprises filmconveying mechanisms, a connecting rod, a screw rod, a motor I and a hydraulic cylinder I, the rear-end conveying mechanism is arranged at the end portion of the machine frame, and the two side-edgecleaning mechanisms are arranged on the two sides of the machine frame correspondingly. The two sides of the light guide plates are clamped through the front-end conveying mechanism for conveying, sothat the situation that the light guide plates are adhered with dirt due to the fact that the upper surfaces and the lower surfaces of the light guide plates are in contact with a conveying mechanismis avoided, the distance between the two film conveying mechanisms is freely adjusted so that the light guide plates with different thicknesses can be coated with films, moreover, the coated films canbe automatically cut off, the cut-off coated films can be continuously adhered to the subsequent light guide plates, then the film coating efficiency is improved, the side edges of the light guide plates coated with the films is cleaned in time through the side-edge cleaning mechanisms, and follow-up manual cleaning is avoided.

Description

technical field [0001] The invention relates to the technical field of optical coating, in particular to a coating device for a light guide plate. Background technique [0002] The publication number is CN207081847U, which provides an integrated device for screen printing light guide plate detection and film coating. This device cooperates with two parallel conveyor belts by setting a plurality of transmission rollers on the frame, and places analog backlight components and protective films in parallel on the two conveyor belts. , by transporting the light guide plate for coating, since the entire plane of the light guide plate is directly in contact with the conveyor belt, it is easy to stick dust, which affects the coating effect and the light transmittance of the light guide plate. [0003] The publication number is CN201520201208.X, which provides an automatic film laminating machine for light guide plates. This device sets a roll of packaging film between the upper film...

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Problems solved by technology

[0002] The publication number is CN207081847U, which provides an integrated device for screen printing light guide plate detection and film coating. This device cooperates with two parallel conveyor belts by setting a plurality of transmission rollers on the frame, and places analog backlight components and protective films in parallel on the two conveyor belts. , by transporting the light guide plate for coating, since the entire plane of the light guide plate is directly in contact with the conveyor belt, it is easy to stick dust, which will affect the coating effect and the light transmittance of the light guide plate

[0003] The publication number is CN201520201208.X, which provides an automatic film laminating machine for light guide plates. This device sets a roll of packaging film between the upper film feeding wheel and the lower film feeding wheel, adjusts the position between the working plate and the feeding plate, and wraps the two packages together. The film is stretched between the soft rubber layer and the working plate of the pressing device to the chuck, and the chuck clamps the two films. During the lamination process, the light guide plate is placed on the lower film to realize the lamination of the light guide plate. After the film is finished, because the packaging film is wound on the upper film feeding wheel and the lower film feeding wheel, after the film covering is completed, the packaging film needs to be pulled out again after cutting, which is not conducive to the continuous film coating of the light guide plate, and then processing less efficient

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