Laminating machine manufacturers analyze the rapid elimination of laminating machines:
1. The machine does not start: the input wire is disconnected, the power cord is reversed, and the voltage is insufficient.
2. Inaccurate temperature measurement: thermocouple, temperature controller. Whether the installation is incorrect and damaged.
3. The working vacuum does not come up: the gas path is blocked, the hand valve or the solenoid valve is not closed, the vacuum pump motor belt is loose, and the vacuum gauge is damaged.
4. The main power switch trips: leakage of the input wire on the top of the heating box, leakage of the distribution box, external wires on the equipment, leakage of the motor, etc.
Fifth, the laminating machine manufacturer explained that the suction film is not in place: the vacuum is not enough, the air leakage, the temperature is not enough, the film is too thin, the workpiece is pasted with other materials, the concave depth of the workpiece exceeds the pull of the film, the suction time is too short, the film is not Pull up, the workpiece is too close.
Sixth, the surface of the overlaid workpiece is folded and not smooth or the corners cannot be wrapped: the film is not straightened, the quality of the film is not good, the workpiece is not well polished, the glue is sprayed too much, and the mold below the workpiece is too low. 7. The film is pulled down when the suction is not reached: whether the solenoid valve or hand valve is open.
7. Breaking phenomenon: the temperature is too high, the heating time is too long, the film quality is not good, and there is no heating.
8. Laminating machine manufacturers explain that the laminating machine has a bad sticking situation
1. Improper selection of adhesive, improper setting of glue amount, incorrect proportioning measurement. Should re-select the type and amount of adhesive.
2. The diluent contains alcohol and water that consume NCO groups, so that the hydroxyl group of the main agent does not react. High-purity ethyl acetate should be used.
3. There is powder spraying on the surface of the printed matter. Wipe gently with a dry cloth.
4. The ink layer of the printed matter is too thick. Adhesive coating arrangement should be increased to increase pressure
5. The ink layer of the printed matter is not dry or completely dried. It should be hot pressed once before gluing; choose an adhesive with high solid content; increase the thickness of the adhesive coating; increase the temperature of the drying tunnel, etc.
6. The adhesive is absorbed by the printing ink and paper, which makes the coating amount insufficient. Should re-formulate and set the coating amount.
7. The surface treatment of plastic film is not enough or exceeds the applicable period, which makes the treatment surface invalid. The plastic film should be replaced.
8. The pressure is low, the speed is fast, and the temperature is low. The temperature and pressure of the film should be increased, and the vehicle speed should be appropriately reduced.
9. Foaming
1. The printing ink layer is not dry. It should be hot pressed again and then glued; postpone the coating time and let it dry completely.
2. The printing ink layer is too thick. Should increase the amount of adhesive coating, increase pressure and compound temperature.
3. The drying temperature is too high, and the surface of the adhesive skins. The drying temperature should be reduced
4. The surface temperature of the composite roller is too high. The temperature of the composite roller should be reduced.
5. The film is wrinkled or loose, and the film is uneven or curled. The film should be replaced and the tension adjusted.
6. There are dust impurities on the surface of the film. It should be cleared in time.
7. Uneven coating of adhesive and low dosage. The coating amount and uniformity should be improved.
8. The adhesive concentration is too high, the viscosity is large, and the coating is uneven. Use thinner to reduce adhesive concentration.
Ten. Wrinkle treatment of laminating machine manufacturers
1. The film transfer roller is unbalanced. The transfer stick should be adjusted.
2. The ends of the film are inconsistent or wavy. Qualified film should be replaced.
3. The adhesive layer is too thick, the solvent is not evaporated completely, which affects the viscosity. When pressed by the pressure roller, there is a slip between the paper and the film. The amount of glue should be adjusted to increase the temperature of the drying tunnel.
4. Both ends of the electric heating roller and the rubber roller are unbalanced, the pressure is inconsistent, and the linear speed is not equal. Two rollers should be adjusted.

Precautions for use of roll-to-roll laminator
1. Install the cold laminator on a special support and place it on a stable and firm workbench. Then make a special platform for laminating film, the height is 5 mm lower than the edge height of the laminating machine, the width is 1600 mm, and the length is more than 1 meter.
2. Place the material to be mounted on the film or the empty cold laminator on the iron roller in front of the cold film machine. After entering the cold laminator, the coating surface is facing upward.
3. Adjust the pressure regulating handwheel on the cold laminator, lift the upper rubber roller, and then pass the material out of the two rubber rollers by 10 cm.
4. If laminating film is needed, the cold laminating film must be put out of the two rubber rollers of the cold laminating machine by 10 cm and placed on the consumables. The film and the consumables must be aligned on both sides.
5. Adjust the position of the consumables on the platform so that the tightness of the two sides of the cold laminator is basically the same, then adjust the pressure hand wheel on the machine, put the top roller down, and adjust it to the empty position. The pressure on both ends must be the same.
6. If the laminating machine is empty, you can shake the handwheel to move the consumables forward. It must be even when shaking, moving at the same speed, not fast or slow. If there is no wrinkle after 5 meters, it means there is no quality problem of consumables.
7. If laminating film is required, first fold the cold laminating film release paper inward to expose the glue surface on the PVC film, then shake the handwheel in the opposite direction, first stick the adhesive surface to the consumables, and then apply the cold laminating film Turn the whole back of the rubber roller, and slowly release the cold laminating film from the fold. At this time, turn the rubber roller to rotate it forward. With the rotation of the rubber roller, slowly remove the release paper and keep the tightness of both sides consistent. With a certain intensity until the end of cold mounting.

The hot laminating machine instant coating laminating machine includes three parts: gluing, drying and hot pressing. It is a pre-coating laminating machine widely used in China at present. There is no gluing and drying parts. It has small size, low cost and flexible operation. Convenient, not only suitable for laminating processing of large quantities of printed products, but also suitable for laminating processing of small batches and scattered printed products such as automated desktop office systems, which has a promising future.
Brief introduction of hot laminating machine
The laminating process is a surface processing process after printing. It is also known as post-press lamination, post-press laminating or post-press laminating. It refers to the use of a laminating machine to cover a layer of 0.012～0.020mm on the surface of the printed product. The thick transparent plastic film forms a paper-plastic integration product processing technology. The laminating machine is the equipment used to complete the laminating process. Generally speaking, it can be divided into two types: instant coating film and pre-coating film according to the process used, and two kinds of bright film and matte film according to the different film materials.
This type of thermal laminating machine is widely used in photo agencies, printing plants, advertising, design and adhesives. It has less investment and obvious effects. The consumables used are non-polluting. They are green and environmentally friendly products and have great market potential.
Operation process steps of hot laminating machine:
The first step is to use a bracket to stabilize the thermal laminator and fix it firmly on the workbench. To make a special platform for laminating, this step is actually to fix the machine and arrange the platform for laminating. This is the beginning and the key step. Whether the product has a good laminating effect is the key.
The second step is to fix the material needed for the film on the iron roller, and the film coating is facing upward, adjust the pressure of the rubber roller, slowly adjust it, and remove the material that needs to be coated from the middle of the rubber roller and the machine. Just wear out more than 10 centimeters.
The third step is to tighten the product and adjust the position, which is a good way to show the effect of the film when the product is used, and it has become a key point of elaborate production. In addition, in the early operation, we must pay attention to the effect of fixing the product to avoid skew.
The fourth step, if you need to mount the film, you need to pass the cold laminating film out of the two rubber rollers of the laminating machine, 10 cm, and place it on the consumables. Then adjust the pressure adjustment hand wheel on the laminating machine, put the upper roller down, and adjust it to the empty path position. The pressure on both ends must be the same.
The fifth step, when there is a slanting phenomenon in the process of use, it means that you have not placed it properly, and it should be carried out after being placed. You can go for a short time, cut it off slowly, re-center it, and start the machine to work. (Remind everyone, you must be even and stable when you are correcting, take your time)
The sixth step, if there are wrinkles, don't stop the machine immediately, let him continue to run for a while, then stop the machine, and slowly take out or cut the film, if you are using a cold laminator, it may be There will be excessive pressure, because the machine itself has not completely stopped, and the problem can be solved after the machine stops.

Full-automatic laminating machine is to apply plastic film with adhesive and combine it with the printed matter using paper as the substrate, pressurized by the rubber roller and heating roller, and form a paper-plastic product, which should be very extensive. , The automatic laminating machine has very high requirements on accuracy at work, especially the surface accuracy and shopping degree of each roller. Once the slightest streaks, cracks, scratches, obscuration, or a slight roundabout deformation. All will affect the processing quality of the product, even not working properly. Therefore, it is very important to protect the fully automatic laminating machine carefully and carefully.
Daily maintenance matters of automatic laminating machine:
1. Always check the oil pipes, valves and cylinder plugs of the hydraulic system for oil leakage. When oil leakage is found, the sealing ring should be replaced in time, and the appropriate amount of hydraulic oil should be filled into the hydraulic cylinder in time;
2. Fully automatic laminating machine should always check whether there is rubber or grease on the rubber roller, and wipe the rubber traces and dust on the roller in time. Keep the two rolled surfaces clean and dark. The surface of each roller must be kept seriously clean. Always clean the machine immediately after applying the machine. Wash with glue thinner (alcohol or xylene) and wipe each roller with a soft towel. It is strictly prohibited to scrape the surface of the roller with a sharp tool. Every time the machine is turned on, the dust on the surface of each roller should be wiped off. The automatic laminating machine checks whether the surface of each roller is dark, if the machine is faulty or abnormally sound, it should analyze and find the cause in time and remove it. After the standby device is normal, the machine can continue to be used;
3. The grounding of the automatic laminator machine and the insulation of electrical appliances should be ensured;
4. The blade line of the scraper blade of the automatic laminating machine should be kept flat and elastic. When there are detours, teeth, curling, etc., it should be repaired and replaced in time. The application of 0.15~0.20 mm manganese steel skin or offset printing machine Replace the blade according to the original specifications;
5. Fully automatic laminating machine should regularly add lubricating oil to the transmission parts and sliding surfaces of the machine to ensure that the machine is in a good lubrication state. In particular, due to the high pressure and high temperature encountered by the large bearing of the pressure roller, the lubricating oil is volatilized and lost. The dwarf high-temperature lubricating oil should be timely so that it can normally perform duties under high temperature and high pressure
6. A comprehensive inspection of the machine should be carried out once a year to find the problem and solve it in time to avoid more serious damage to the machine.

Introduction of Automatic Laminating Machine
1. Introduction of Automatic Laminating Machine
The automatic laminating machine is to apply adhesive to the plastic film, combine it with the printed matter using paper as the substrate, and press the rubber cylinder and the heating cylinder to form a product combining paper and plastic. Due to the thin and transparent plastic film on the surface of the printed product, the surface is smoother and brighter, which not only improves the gloss and fastness of the printed product, but also extends the service life of the printed product. At the same time, the plastic film is waterproof and Protection against dirt, abrasion, folds, and chemical corrosion. If the transparent bright film coating is used, the printed graphics of the coated product will be more vivid and full of three-dimensional sense, which is especially suitable for the packaging of green food and other commodities, which can arouse people's appetite and consumption desire. If a matte thin film is used, the film product will bring a noble and elegant feeling to consumers. Therefore, the packaged printed matter after film coating can significantly improve the grade and added value of commodity packaging.
Second, the classification of automatic laminating machine
1. Both coating type laminating machine
The operation of this type of equipment includes three parts: gluing, drying, and hot pressing. The operation requirements are high. The advantage is that the quality of the finished product is reliable. Its fatal disadvantage is that it produces gases that affect human health during processing. Therefore, this technology is currently in Europe and the United States. Developed countries and other countries have banned it completely, but due to the low cost of this type of film consumables, it is currently widely used in large and medium-sized traditional printing factories in China.
2. Pre-coating film laminating machine
This machine coating is formed at one time, and the consumables used have been coated with glue. When the coating is applied, the glue is melted by heating, and then the film is adhered to the printed matter by pressure. This kind of film coating equipment is cheap, simple to operate, and does not generate harmful gases during operation. It is a trend in the development of film coating. In today's society that is increasingly focusing on environmental protection, it is believed that this technology will one day replace the pre-coated pre-coated film and become The main laminating technology in the domestic printing industry. The disadvantage is that this technology is not very mature in China at present, and there are still some problems to be solved, such as: single-sided film curling (currently there is a single-sided anti-curling machine, but the price is higher), printed matter with silicone oil Difficult to coat etc. Currently widely used in short-run printing, digital quick printing industry. 2. The cold laminator is a machine with only two rollers. He directly sticks the viscous film to the printed matter by pressing. This kind of machine is cheap, but the cost of consumables is high, and the lamination effect is not good. A major defect, currently widely used in small-scale graphic production industry.
3. Small laminating machine
That is, it is a simple and practical professional laminating machine, which can also be used as a laminating machine, a cold laminating machine, and heat-sealing with PVC. Strictly speaking, this type of laminating machine is also derived from the upgrade of the inner thermoplastic laminating machine. But this type of laminator solves the fundamental problem of the first type of laminator. Due to the use of internal hot glue roller to press the film and feed it up and down, the heating time of the pre-coated film is increased and the heat is balanced, so the film covered is smooth, bright, and the same effect as the film covered by the high-end film laminator. But this type of laminating machine has a heating power of only 500W. Although the temperature is adjustable, the speed is fixed, and the film can be pressed 0.7-0.8 meters per minute. Suitable for business card film, recipe film, photo film and graphic print film, especially some small printing factories, typing copy shops, business card production agencies and photo studios, in order to reduce equipment investment and reduce costs, so choose this type of film There are more machines. At present, the market prospect of this type of laminating machine is very good. It can be said that this laminating machine is the most cost-effective.