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What are the characteristics and coating forms of the automatic laminating machine?

  • Publish Time: 2019-07-30
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The automatic laminating machine is a kind of printed film which is processed by plastic machine and printed on paper. This is widely used in people's daily life. It is mainly used in magazines, book covers, boxes, calendars, hand-held paper bags, etc. It is ubiquitous. In the past, the traditional laminating machine was inefficient and the labor cost was high. Nowadays, people have invented the automatic laminating machine, which uses modern advanced laminating technology to automate the feeding and cutting, which greatly improves the Production efficiency reduces the cost of manual input. Not only that, the products laminated by the automatic laminating machine are more beautiful and beautiful in color, and are moisture-proof, easy to clean and durable. The automatic laminating machine is generally composed of three parts: sizing, drying and hot pressing. Gluing, it mainly uses adjustment devices to adjust the amount of glue to meet different needs. The drying tunnel, which mainly uses electric heating pipes and fans, completes the work of adhesive drying on the drying tunnel of 2 to 3 meters. Hot pressing is mainly to obtain a firm interface layer for durability.

What are the coating forms of the automatic laminating machine? The main ones are the drum reversing type, the concave type, the no-blade direct coating, and the direct application of the scraper.

1, concave coating. It consists of a metal-coated rubber roller with a surface engraved and a set of film-dividing rollers. The rubber roller is directly immersed in the glue, and the glue is taken out from the glue tank as the roller rotates, and the surface of the roller is scraped off by the scraper. Glue. Under the action of the laminating roller, the glue in the groove of the roller is driven by the directional moving film to be coated and uniformly applied to the surface of the film. The amount of the glue can be controlled by adjusting the grid of the surface of the coating roller shaft, the characteristic value of the adhesive, the pressure value of the film roll, and the like. The advantage of the concave coating is that the coating amount can be controlled more accurately and the coating is uniform; however, the anilox roller is difficult to process, is easy to be damaged, needs to be cleaned frequently, and the coating is required to be high.
2. The drum is reversely coated. It is an indirect coating, which is the most used of all models. . The rubber roller takes out the glue from the storage tank, and the scraping roller and the scraping rubber plate can scrape the excess glue back into the storage tank. The laminating machine film pressing roller presses the film to be coated onto the surface of the rubberized roller after the rubberizing, and maintains a certain contact area, and the glue is continuously applied to the surface of the film under the action of pressure and adhesion. The amount of glue can be changed by adjusting the distance between the squeegee roll and the applicator roll, the squeegee roll and the slab.
3. No-squeegee roll extrusion coating. The rubberized roller is directly immersed in the glue. When the coating is applied, the glue roller takes out the glue and passes through the rubber roller, and then the rubber is pressed by the pressing force between the film roller and the rubber roller.

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