How to purchase a laminating machine?
Step 1: See that the larger the diameter of the rubber roller, the larger the wrapping area between the rubber roller and the film, and the material can be spread out very flat on it, without wrinkles and air bubbles.
Step 2: Look at the power of the motor. The motor is the heart of the machine. Since it has an inflatable shaft, it must be a high-speed laminating machine. The motor is too small; the speed is getting slower and slower; it can't get up, can't brake. More seriously, the motor burns directly. Choosing a servo motor with a large motor is right, especially a servo motor of more than 1000 watts.
Step 3: Look at the inflatable shaft tensioning shaft lock. Don't look at such a small difference. The difference between machines is that it affects the whole body.
Step 4: Look at the inflatable shaft with such a long thickness of the fuselage trigger. If there is no strong enough support point, it will not take long for the inflatable shaft to collapse or the sheet metal to deform.
Step 5: Looking at the machine's ease of operation, customers who want to use an inflatable shaft must pursue high quality and high efficiency. Where does efficiency come from? Of course, the simpler and more convenient the machine is to operate, the better.
The request above require the machine to have a very developed brain. The self-developed control system, speed, temperature, automatic stop after covering, fixed-length lamination, electric cutter, automatic inflation and locking of the inflation shaft are all controlled by it.
1. Look at the attached product and the actual effect of the attachment.
Before we choose an automatic laminating machine, we must do a good job in product positioning our products, and the characteristics of the attached products and the function of attaching them must be taken into account. The automatic laminating machine is divided into three types of attachment methods.
1.1. The product accuracy is not high for the scraping method, and there is no bubble regulation. Products with high production capacity requirements can be attached by scraping.
1.2. The suction method does not have bubble regulations, and the product with high precision and capacity requirements can choose the suction method to attach.
1.3. Rolling sticking method, products with bubble regulations, high precision, and production capacity requirements can choose the rolling stacking method to stick.
2. The cost budget for the cost of machinery and equipment and the production capacity in daily work
An automatic laminating machine can improve not only the company's production capacity but also save a lot of capital investment in labour costs for the company. Although it is said that the level of automation technology has been raised, it is aimed at some small and medium-sized production and processing companies. When automatic machinery and equipment are updated to fully automatic assembly lines, a detailed estimate of the daily production capacity and the procurement cost of machinery and equipment must be made. The cost of automation technology and equipment is higher than that of fully automatic machinery and equipment, and effective costs should be guaranteed. Budget and spending every penny on edge can provide a higher profit for the company.
3. After-sale maintenance service guarantee
There are many well-known brands of automatic laminating machines. At the time of selection, we should find a few more capable brand companies to carry out comparisons. Brand companies often continue to do so because those companies have a strong after-sales maintenance service elite team. The support point and the after-sales service team needs asset development support. If the company does not have such overall strength, it cannot grow and grow. It is often necessary to find a brand company because the after-sales maintenance service is guaranteed if the facility is in full operation. If the process is abnormal, the common fault can be cleared as soon as possible.
What is the factor that affects the quality of laminating?
1. The first major factor affecting the film quality of the pre-coating film machine: temperature
Temperature is the first core area of lamination. The adhesive used for the pre-coating film is a hot melt adhesive. Temperature determines the melting state of hot melt adhesive, the varnishing function of hot melt adhesive, and the molecular structure of hot melt adhesive. The ability to spread between the molecular structures of three chemical substances: OPP plastic film, packaging and printing ink layer, and paper sheet. The temperature control of the whole process of lamination also affects and determines the transformation of the lamination film with hot melt adhesive when it is heated and its ability to match the new heat supply. Therefore, strict temperature control is the main core of pre-coated and pre-coated film machines.
2. The second major factor affecting the quality of the pre-coated film machine: working pressure
Working pressure should apply moderate working pressure while accurately controlling the lamination temperature because the surface of the printing paper itself is not very flat; only under the action of temperature will the hot melt adhesive in the viscous flow state drive away the printed matter. The gas on the surface fully wets the surface of the paper print during the whole process.
Causes the molecular structure of the colloidal solution to spread to the ink layer of the paper printed matter, spreads and shifts between the molecular structures of the printed paper, completes better bonding, produces a detailed coverage of the entire surface of the printed matter, and makes the printed matter bright. No fog. Adhesive layer.Levelling. No wrinkle, excellent bonding effect. In the case of no wrinkle, the working pressure can be increased moderately so that the thermosetting and drying characteristics of the hot melt adhesive can be fully expressed to ensure that the coated products are in the composite. In the link that is added after the printing, it can resist the influence of various physical detachments, impact forces, etc., so that the internal structure and surface conditions of the composite printed matter can be well unified. Rate.
3. The third major factor affecting the quality of the pre-coated film machine: speed
The final paper lamination is a dynamic composite fitness movement. Its fitness movement rate affects the time the paper-plastic composite stays on the interface during the lamination transformation and the lamination work. The laminating machine is also determined. Entered temperature, working pressure and its specific effect value on the paper-plastic composite type in the specific production process.
What is the machine parameter of this laminating machine?
This laminating machine model is SWFM-520H. It's a fully-automatic laminating machine. The max paper size is 485*540mm. And the paper height is 450mm. Besides, the operating speed is 0-18m/min. Furthermore, the laminating temperature is 50~120℃. And the total power is 4kw; the pressure is 3~8MPa, and the pressure mode is automatic. Moreover, the paper thickness is 105-305g. At last, this machine is controlled by a PLC system, and the dimensions are 2.35×0.87×1.4m.
How to operate the fully-automatic laminating machine?
This machine is an integral mechanism consisting of a film release mechanism, guide roller, paper feeding table, heating roller, strong pressing, anti-rolling device and electrical control system.
1. The film release shaft, the film release mechanism has a friction plate, and the film tightness can be adjusted by turning the handwheel. It is equipped with automatic slitting, which can slit the film width. The dotted line on the film is easy to break.
2. Aluminum guide roller, the film can be stretched more smoothly after passing through the aluminium guide roller.
3. Heating roller, the infrared quartz tube in the middle of the roller heats the wall of the roller after being electrified, and the roller can be rotated more evenly during heating. The temperature detector is placed on the surface of the drum. When the set temperature is reached, the electric appliance automatically turns off the heating tube to save electricity.
4. Conveying table, the conveying table is driven by the main conveying roller, the belt tension can be adjusted at both ends of the auxiliary conveying roller, the middle wheel can adjust the left and right position of the belt, and the side gauge can be adjusted to make the lateral position of the paper align with the film conveying.
5. The pressure roller is made of non-adhesive, oil-resistant, high-temperature and pressure-resistant materials. After adjusting the film position to reach the required temperature and running the machine to transport the paper to the pressure roller, the pressure switch can be turned on to press the pressure roller. Be sure to relieve pressure when shutting down.
6. When the anti-roll device needs to be adjusted, adjust the hand wheel to meet the paper requirements, and then press the second pressure roller (composite roller) button.
7. For the slitting roller, after setting the meter counter, the cylinder will run and press to make the paper cut at the interface when the set length is reached. (If the roller does not rotate due to continuous slitting during pressing, please turn off the "slitting switch (red)" to separate it)
8. On the delivery table, adjust the baffle according to the length of the paper so that the slitted paper is folded on the table.
How do we solve the common problems?
1. The printed product is too thin: try to prevent the thin paper from being laminated.
2. Unbalanced tension: adjust the film tension to make it balance
3. The compound pressure is too large: appropriately reduce the compound pressure.
4. The temperature is too high: drop the composite temperature.
5. Excessive film tension: Excessive film tension will cause the film to stretch and deform, and after the product is cut and the external force is removed, the film will return to its original state, causing the product to bend to the side of the film. The treatment method is: to adjust the screwing depth of the membrane expansion screw to reduce the braking force.
6. The winding tension is too large: the winding tension is too large, and the film and the printed product will deform, but the deformation amount is different. After the external force is removed, the stem will bend to the side of the paper, especially for thin paper. The treatment method is to reduce the friction of the winding power wheel.
7. Ambient humidity is high: After the coated product with high moisture content is full and dry, the paper will be dehumidified and deformed, causing the product to bend to the side of the paper. The treatment method is to control the humidity of the workshop.
8. The boring time is short: the boring time is short. If the coated product is not sufficiently dry, it will bend. The solution is to extend the boring moment.
If the water content in the paper is too large, the paper will be folded after the film is dry, and the plastic film will be deformed and wrinkled;
Solution: The moisture content of the paper should be around 5% to maintain the normal temperature and humidity in the working room.
The transfer roller of the laminator is not running well, or the surface is dirty so that the film cannot be flexed and stretched and operate normally;
Solution: Transfer rollers should be greased on time and kept clean and free of dirt.
How does the machine adjust its temperature itself?
In the whole process of production, manufacture and application of automatic laminating machines in China, poor temperature control will cause biodegradation and chemical cross-linking of polymer compounds in hot melt adhesives, resulting in poor lamination surface. Some pre-coating film colloid solutions are easy to bond with the surface of the sheet, resulting in poor unwinding; some thin surfaces of the surface layer are not resolved by activity, which is very likely to cause shortcomings such as insufficient adhesion to newspaper printing; because hot melt adhesives are made of many It is made of agitated raw materials, and the clarity after lamination is significantly worse than that of ultra-low temperature pure epoxy resin pre-coating films.
If the water content in the paper is too large, the paper will be folded after the film is dry, and the plastic film will be deformed and wrinkled;
Solution: The moisture content of the paper should be around 5% to maintain the normal temperature and humidity in the working room.
The transfer roller of the laminator is not running well, or the surface is dirty so that the film cannot be flexed and stretched and operate normally;
Solution: Transfer rollers should be greased on time and kept clean and free of dirt.
How do we prevent static electricity?
1. The fully automatic laminating machine can be connected to the ground wire, and the wire connector can release the static electricity. Before the power-on operation, you must first charge and discharge both hands. You can wear a static-eliminating smart bracelet or touch other grounding The metal material object of the device.
2. In addition, it is also necessary to pay attention to the relative humidity of the air in the room; some research materials indicate that when the ambient humidity of indoor air quality is less than 30%, it is beneficial for friction to generate static electricity. If the ambient temperature increases to 45%, static electricity will be Hard to happen. The influence of electrostatic particles on the laminating machine in the social circle cannot be avoided, especially for sticking and repairing. However, you can still reduce the influence to a minimum. The automatic laminating machines used in many large and medium-sized colour printing factories require the application of electrostatic rods and other technical professional electrostatic removal machines and equipment.
3. Nowadays, there are many PE electrostatic films, and PET laminated electrostatic films use the principle of electrostatic magnetism to paste PVC pulse dampers. The film width Smaller is unsuitable for text-to-laminate framing applications for these kinds of multi-purpose anti-counterfeiting labels, self-adhesive stickers, barcode paper stickers, etc.
