Laminating machine with paper preheating function

Abstract

The invention belongs to the technical field of laminating devices, and particularly discloses a laminating machine with a paper preheating function. The laminating machine comprises a paper feeding device, a paper preheating device and a laminating device, wherein the paper feeding device transports paper to the paper preheating device through a roller, the paper preheating device preheats the paper and transports the preheated paper to the laminating device, and the laminating device is used for laminating the preheated paper. The laminating machine can more thoroughly melt an adhesive layerthrough preheating in advance, so that the fitting effect of the paper on film is better; the device reduces the melt time of the adhesive layer, so that the laminating speed of the machine can be improved greatly; the temperature and pressure of the laminating device can be reduced properly through preheating in advance, thereby effectively preventing high temperature from scalding a laminatingrubber roller and preventing high pressure from damaging a bearing, therefore the device not only can improve the efficiency of the machine and the quality of the laminating product, but also can reduce the loss of machine parts such as the adhesive surface of the rubber roller and the bearing.

Description

technical field [0001] The invention belongs to the technical field of laminating devices, and in particular relates to a laminating machine with a paper preheating function. Background technique [0002] In the current laminating machine, whether it is a pre-coating laminating machine or an instant coating laminating machine, the paper is directly bonded to the film after being sent out in the form of a single sheet through the paper feeder. [0003] Due to the need for high temperature and high pressure when laminating paper and film, the adhesive layer on the film will not be in direct contact with the heating roller. The heat on the surface of the roller needs to be transferred to the film first, and then it can be transferred to the adhesive layer through the film. When the machine is running fast, the adhesive layer on the film may not be completely melted, resulting in poor adhesion to the paper. [0004] Especially when the weather is cold, the temperature of the pa...

AI Technical Summary

Problems solved by technology

When the machine is running fast, the adhesive layer on the film may not be completely melted, resulting in poor adhesion to the paper

[0004] Especially when the weather is cold, the temperature of the paper itself is very low. After the adhesive layer encounters the low-temperature paper, the roller needs more heat to melt the adhesive layer, and the pressing time required is longer, so that the machine cannot be driven fast. It may lead to poor quality of film-coated products, and weak adhesion between film and paper; therefore, there will often be phenomena such as filming after die-cutting, product blistering after deep embossing, etc.

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