HC Plastics News: In view of the booming automotive industry in North America and Latin America, a prospective material developer based in Mexico has identified the development potential of the automotive parts industry and has invested in the development and production of shrink-wrapped packaging film for automotive parts. Since the shrink wrap film must have excellent ductility, heat shrinkage, corrosion resistance, flame resistance, etc., it has a large difference from the characteristics of the general consumer plastic bags, and its added value is also significantly higher than that of the general film plastic. The customer invested nearly two years to study the formula ratio of this high-performance shrink film, which was finally developed in the third quarter of this year.
During the development of the film, we also actively search for suitable blower equipment manufacturers. Because of the excellent machine design and development integration capability, rapid customer interaction feedback capability and continuous kinetic energy, POLYSTAR is finally favored by the customers of Moxi. Developed a high-performance composite shrink film blowing machine.
POLYSTAR has successfully developed a high-performance composite shrink film blower machine.
Excellent screw design and mixing ability
Since the raw materials that the customer wants to put into mass production are mixed with a variety of composite materials, the screw mixing section, the compression section and the metering section of the extrusion unit must have excellent mixing and mixing ability, so as to produce uniform and no-noise points. Smooth shrink film. The customer's R&D manager stated that POLYSTAR's excellent and efficient extrusion system design with accurate material temperature, speed and cooling air volume control is an important key to enable high-performance film to be stably formed.
Precise edge positioning control technology
The customer's consistency requirements for the edge forming of the roll film are very strict, and no side misalignment can be tolerated. In response to this demand, POLYSTAR has strengthened the positioning point control and sensor sensitivity of each forming wheel of the take-up unit and the take-up unit, so that the difference between the opposite sides of the roll film can be accurately controlled within the tolerance range.
Optimal automatic coil tension control technology
The strength of the take-up tension control will determine the solidity and uniformity of the final roll film. POLYSTAR adopts Japan Loadcelltype load distribution automatic control technology, which can perform real-time fine adjustment and correction on the uneven tension of the film, so that the final roll film is in a dense and uniform state, and the dense and uniform roll film also promotes the heat in the back stage. The sealing and cutting process is smoother and smoother.
Back-to-back dual-volume counter-synchronous drive control
In addition to the production of shrink film plastic bags, the customer also launched a single-layer small shrink film product for packaging smaller car repair parts. Therefore, the machine also integrates a back-to-back double-roller to produce a single-layer film. . The synchronization of the winding speed of the two-way trimming is the main key to whether it can be perfectly formed. POLYSTAR uses a high-quality frequency converter in each take-up wheel unit to control the consistency of the take-up speed, and the film is simultaneously sealed into several rolls of smaller width by a stable heat-sealing cutter. 
Editor in charge: Ye Dan
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