The automatic laminating machine is aimed at the surface lamination of printed products, such as books, posters, color box packaging, handbags, etc. In response to the continuous improvement of global environmental awareness, oily lamination will be gradually replaced by water-based lamination. Next, let's talk about the use skills of the automatic laminating machine.
        (1) Hot pressing roller
        The hot pressing roller is a hollow roller with an electric heating device inside. The temperature of the roller is controlled by sensors and instruments on the console. The surface state and thermal power density of the hot pressing roller have a great influence on the quality of the coated product. The general lamination process requires a hot pressing temperature of 60-80 ° C and an area heat flow of 2.5-4.5W / cm2.
        (2) Rubber pressure roller
        Press the coated product against the heat press roller with a certain pressure to make it solidify and stick firmly. The contact pressure during compounding is closely related to the adhesive strength and appearance quality, and is generally 15.0 to 25.0 mPa. Rubber pressure rollers work under high temperature for a long time, but also keep the roller surface smooth, smooth, small lateral deformation, good tear resistance and peeling, so silicone rubber with better tear resistance is mostly used.
        (3) Pressure adjustment mechanism
        It is used to adjust the pressure between the heat pressure roller and the rubber pressure roller. The pressure adjustment mechanism can use simple eccentric mechanism, eccentric cam mechanism, screw rod, nut mechanism, etc .; Adopt liquid (gas) pressure type pressure adjustment mechanism.

        After the laminator is adjusted, the pre-processed printed matter is sent to the paper feeding mechanism for lamination, and samples are taken for inspection. Use a small amount of printed matter to inspect before laminating, so as not to cause a lot of waste. After passing the inspection, mass production can be carried out. The method of laminating inspection of laminating machine is as follows:
        1. Tear off the corner of the proof sheet completed by the lamination in the width direction, press and hold the paper, and tear it all in the width direction. After tearing off all the tears, if the graphic imprint on the surface of the printed matter follows the glue layer and the fiber of the paper Transferred to the film, it means that the printed matter and the film adhere well, and it is a qualified product.
        2. Put the film-coated sample into the drying tunnel and bake at 60-65 degrees Celsius for about 30 minutes. If there is no blistering, no delamination and no wrinkles will occur, and it is a qualified product. After baking, the tear film should not be separated from the paper intact.
        3. Immerse the sample in cold water for 1 hour and take it out. If the plastic film is not separated from the printed product, it is a qualified product.
        4. Put the sample on the creasing machine and apply pressure. If the pressed uneven part does not delaminate, it is a qualified product.

        The laminating machine is a kind of product in which a plastic film is coated with an adhesive and printed with paper as a substrate after being pressed by a rubber roller and a heating roller to form a paper-plastic product. The classification can be divided into coating laminating machine and pre-coating laminating machine. The printed product after the coating has a thin and transparent plastic film on the surface, the surface is smoother and brighter, which not only improves the glossiness of the printed product and Fastness extends the life of printed matter. So, when the laminating machine is laminating, how can it reduce the amount of film and save costs?
        The amount of film used in the automatic laminating machine is mainly related to the operation level. Therefore, Maoyuan Machinery generally recommends:
        1. The product to be constructed must be straight. Handle uneven paper with "ruffled edge" and "tight edge" phenomena. Paper with "lotus edge" can be baked, and paper with "tight edge" can be hung to dry.
        2. Be sure to wait for the blots to dry before using the laminating machine for laminating, otherwise it will cause blistering or hair pulling.
        3. Spray as little powder as possible during printing, otherwise it will cause emptying and bubbling at the pile. Before spraying the film, the powder should be disposed of. If the number of prints is large, the powder can be hung to remove the powder. If the number of prints is small, the powder can be wiped manually.
        4. When laminating, attention should also be paid to the direction of the paper strands, especially thick paper, to reduce the curling of the paper due to rolling and stretching.

        The automatic laminating machine should do inspection and analysis before use, find problems in time, and avoid failure of mechanical equipment during operation. Next, let's take a look at the inspection work before using the automatic laminating machine.
        The automatic laminating machine is best to regularly check whether there is glue or grease on the rubber roller, and wipe the rubber traces and dust on the roller in time to ensure that the appearance of the two rollers is black. The surface of each roller of the automatic laminating machine must be cleaned. Not only this, it is necessary to clean the machine immediately after using the machine every time. Wash with glue thinner and wipe the rollers with a soft towel. It is strictly forbidden to scrape the surface of the drum with a sharp tool. Every time the machine is turned on, the surface dust of each roller should be wiped off. Computer bronzing machine and check whether the appearance of each roller of the machine is black, when the machine shows defects or abnormal dynamics, it is necessary to analyze and find the reason and eradicate it in time, and wait until the machine is normal before allowing it to continue to operate.
        The blade line of the scraper blade of the automatic laminating machine should be flat and elastic. When the appearance of detours, teeth, curling, etc., it should be trimmed and exchanged in time. Exchange it according to the original standard. Lubricant should be added to the transmission parts and sliding surfaces of the machine on time to ensure that the machine is in excellent lubrication conditions. Especially the large bearings of the pressure rollers are subject to high pressure and high temperature, and the lubricant is evaporated and thrown away at will. High temperature lubricating oil, so that it can operate normally under high temperature and high pressure. The floor formwork support of the automatic laminating machine uses the steel pipe bracket composed of the connection piece and the steel pipe, and gradually opens up perfectly as a fastener type steel pipe bracket.

        What are the three most critical parts of the laminating machine? The laminating machine is mainly divided into three parts: gluing, drying tunnel and hot pressing.
        1. The glue part. The gluing part is equipped with an adjusting device to adjust the amount of gluing to meet the requirements of different printed parts. The gluing roller uses rubber roller or steel roller.
        2. Part of the drying tunnel. The drying tunnel is generally 2 ~ 3m long. The drying tunnel of the laminating machine is equipped with infrared lamps and electric fans. There is also a high-power electric heating tube and exhaust fan on the upper part of the drying path of the automatic laminating machine. The temperature can be adjusted to dry the adhesive and eliminate the exhaust gas.
        3. Hot pressing part. This part is the key to laminating, which is directly related to the adhesion fastness of the laminating product. The principle of hot pressing is that the adhesive can quickly infiltrate and penetrate into the surface layer of the printed matter in the molten state, so as to obtain a strong bonding interface layer. The hot pressing part is composed of a group of rollers. One of the hollow metal rollers is equipped with an electric heating tube, and the temperature can be controlled automatically. The pressure of this group of rollers can be adjusted.