It is produced by fully automatic high-speed plastic blister forming machine. The basic principle is: the rolled sheet is pulled into the furnace oven and heated to the softened state. Then it is heated and then pulled to the top of the blister mold. The mold is moved up and evacuated, which will soften the The sheet is adsorbed on the surface of the mold. The blister plant sprays the cooling water on the surface of the formed sheet at the same time to harden the formed sheet, and the formed sheet is automatically pulled to the storage box again. The pneumatic cutting knife will form the unformed sheet. Separation of wood to complete the entire process. Most of the major quality problems of plastic products occur in this process: 1. Blister is not in place, refers to the shape deformation, there is no blister into the same shape of the product with the mold; 2. Overmolded, refers to the product is too thin; 3 Pulling wire refers to the appearance of undesired line marks on the molded product; 4. Uneven thickness. All of these problems need to be debugged in place after a good mold, including: sheet advancement time, heating temperature and time, vacuum pumping strength and time, position, time and depth of the drop of the upper mold, placement of the mold in the imposition. Location, whether to add accessories and other molds.
Blister production process
Blister packaging products are mainly raw materials: PVC, PS, PP, PET, PETG and flocking, anti-static, conductive and other materials. Blister production process: 1: mold making and processing. 2: The mold treatment is dried and softened. 3: Place the softened plastic sheet together with the wooden cabinet in a vacuum chamber, activate the suction switch, and suck the vacuum chamber air. After the plastic sheet is cooled, the plastic factory will get the same concave package as the mold or Process molds. 4: Blister packaging and finishing. Plastic products are processed by plastics. The principle of product formation is to heat flattened plastic hard sheets and soften them, vacuum-absorb them on the surface of the mold, and then cool the molds. The plastic products are widely used in electronics and electrical appliances. Industry, food industry, hardware tools, cosmetics industry, toy industry, daily necessities industry, pharmaceuticals, plastic health care products, automobiles, stationery, sports goods and other categories of industry plastic raw materials only plastic sheet, the film thickness is generally not more than 1.5MM, commonly used sheets are: PVC, PET, PP, PS, and flocking sheet based on this, gold-plated sheet and anti-static sheet. The main advantages of plastic packaging products are: saving raw and auxiliary materials, light weight, convenient transportation, good sealing performance, and meeting the requirements of environmental protection green packaging; can package any special-shaped products, packing without additional buffering materials; packaged products are transparent and visible , Beautiful appearance, easy to sell, and suitable for mechanization, automatic packaging, easy modern management, save manpower, improve efficiency.
Introduction of production of plastic packaging mould
(1) After the mold drawing or model and physical object are sent to the mold house, the first is the placement of the items. Each item will have its own characteristics. In order to better enable the waste person to clearly view the characteristics of the items, it is necessary to Finding features, angles, and placing items is the key to the design of plastic molds.
(2) During the mold making process, the edge of the mold is to go through the guide angle and the scraping edge, because the suction molding product needs suction position and edge and curvature in the production process, otherwise it will lead to the size of the item is not dependent.
(3) plastic mold proofing, in-kind or drawing model, after making the mold, should pay attention to the plastic mold on the sand hole, the mold on the arc angle of the pull wire, and so on. Because during the proofing process, if you do not pay attention to these matters, it will lead to bad copper plastic mold on the surface of the electroplated copper mold or the produced plastic products.
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