Analysis of coating and calendering process of glazing machine The glazing process of glazing machine is to coat (or spray, print) a layer of uncoated transparent coating on the surface of the printed matter, after leveling, drying and calendering After that, the technology and method of forming a thin and uniform transparent bright layer on the surface of the printed matter. Correctly understand the importance of glazing equipment structure. The wind blown into the film by the blower of the film laminator blows toward the film and then is discharged from the air outlet. The film laminator divides the drying into a dehumidification zone and a drying zone to improve the drying power level and reduce energy consumption.
Printing glazing machine glazing is more expensive than laminating machine cladding. The process is simple, in addition to the full version of the glazing, but also requires partial glazing. Composition of UV varnish varnish: Oligomer Oligomer is the most common constituent substance in uv varnish and belongs to a type of film-forming substance. Its performance plays an important role in the curing process and the properties of the cured film. The laminating machine includes a frame and a heating roller, and the film is wound on the heating roller. The portion of the heating roller covered with the film is divided into a dehumidification area and a drying area in sequence, and the drying area is connected to the heat recovery and reuse chamber through.
The laminating machine includes three parts: gluing, drying and hot pressing. It has a wide range of special applications and stable and reliable processing performance. It is currently widely used in China. The laminating machine has no gluing and drying parts, small size, low cost, flexible and convenient operation, not only the laminating processing of general large-scale printed products, but also the laminating processing of small batches and scattered printed products such as general automated desktop office systems, etc. Very promising.
The highlights of the laminating machine, namely the coating film:
(1) The phenomenon of blistering and film stripping is prone to occur. The blistering and film stripping phenomenon is particularly serious in a large-area on-site printing or in a workplace with high humidity.
⑵ Occasionally, the surface of the product has different gloss characteristics or fog spots.
⑶ The product is prone to curling phenomenon. If the pressure is too large when applying glue or the temperature is too high during drying, this kind of curling phenomenon is more serious.
⑷The organic solvent and other chemical substances will be volatilized into the atmosphere when the film is coated by the laminating machine, causing environmental pollution and even causing a fire.
Seriously affected the R & D and production power level. The new automatic slitting machine is a mechanical device that slits wide-width paper or film into multiple narrow-width materials, and is often used in printing and packaging machinery. The traditional control scheme of the slitter is to use a large motor to drive the rewinding and unwinding shaft. A magnetic powder clutch is added to the rewinding and unwinding shaft, and the resistance generated by the magnetic powder clutch current is controlled to control the surface of the material. tension. The dehumidifying area of the laminating machine includes a blower, an exhaust fan and a dehumidifying chamber. The dehumidifying chamber of the laminating machine is provided with an air inlet, a blower outlet and an air outlet for air circulation in the dehumidifier chamber, the blower opening facing the film.
The key to the adjustment of the magnetic powder clutch of the new automatic cutting machine The main highlight of the new automatic cutting machine is that the magnetic powder clutch acts as the same resistance device and outputs the same DC voltage through the system control to control the resistance of the magnetic powder clutch. The new automatic cutting machine can be used for stepless speed regulation from zero to synchronous speed, and is specially used for high-speed segment fine-tuning and medium and small efficiency speed regulation systems. The air inlet of the film laminator is connected to the blower, and the exhaust fan is connected to the air outlet. During the drying condition, the film first enters the dehumidification area and then enters the drying area.