With the improvement of packaging standards such as food, medicine and daily necessities, as well as the rapid increase in market demand, the supply of CPP, CPE, CPET and other products is in short supply. Based on a good market environment, Guangdong Shicheng Plastic Machinery Co., Ltd. strives to reduce production costs, improve production efficiency, meet various production needs of customers, and continuously improve its scientific research department on the basis of learning, absorbing and digesting foreign advanced technologies. At the 19th China International Rubber and Plastics Industry Exhibition, the first domestically produced 3-layer coextruded cast film production line with a number of national patent technologies and a width of 5000 mm was launched.

This line adopts "precision extrusion" technology has a highly efficient and energy-saving optimized configuration combination compared with cast film production equipment with a width of 3,500 mm or less, and shows excellent performance in terms of its special requirements in manufacturing and processing technology. Performance:

â—† The application of special bi-metallic screw extrusion control system can optimize the flow channel design and increase the melt flow rate, which can effectively eliminate the crystal point generated during the plasticization process. The unique back pressure device design can freely adjust the extruder's pressure.
â—† The world-class hanger-type hanger-type runner design enables a wide-format 4,500-mm slot automatic die to be combined with a high-accuracy imported non-radioactive infrared thickness automatic detection and control system to effectively track and control the horizontal and vertical thickness of the product. . This ensures the high quality of the product and improves the service life of the equipment.
â—† The cooling roller is applied with the automatic constant temperature dual-channel circulating cooling control system to ensure the uniform temperature distribution on the roller surface and improve the product quality.
â—† The imported corona treater uses high-voltage discharge technology to ionize the air between the discharge electrodes into corona discharge. When the film receives the discharge through the discharge space, the polar groups are generated on the surface, and at the same time, the strong ion impact makes the treated surface rough. So as to enhance the penetrability and adhesion of the ink and glue on the surface of the material being processed.
â—† Accurate vector synchronous servo drive system makes the winding speed fast and stable, reduces maintenance costs, and is more energy efficient.
â—† Double-position automatic rollover and positioning coiling system, with independently adjustable tension/pressure control device and longitudinal slitter, make the winding quality constant and reliable, and can effectively reduce the waste generated when slitting, applicable to all types film.
â—† In order to further improve the reliability and automation of the control system and facilitate the expansion of system functions, a distributed control system consisting of a PLC, a distributed control module, an industrial control computer, a touch screen, and a smart meter has been established to achieve distributed control of the production line. The real-time display of the process curve, the storage of key parameters, etc. facilitate production management, save energy consumption and improve product quality.