1: Mold making and processing of bubble bag: according to the requirements or sample specifications, first make the blister mold. Generally, gypsum is used to make the blister packaging mold, but wood carving and metal carving products are also used as the mold. After the gypsum mold is made, let it dry naturally or completely, and then according to the specific conditions of the convex and concave surface of the product, Use 1-2mm drill flowers to drill many small holes in the low recess that does not affect the product packaging shape. For products such as packaging boxes, you have to drill some small holes around the four edges so that the air can be extracted during blister production. After the holes are drilled, the gypsum mold must be hardened. The hardening treatment method is to soak it in concentrated alum saturated solution and dry it.
2: After the mold is completely dried, put the mold into the upper iron plate of the vacuum chamber, and then load the plastic sheet into the applicable specifications according to the size of the mold, then put the sheet into the heating wood cabinet to completely fix it, and then place the wood cabinet and the plastic sheet on the thermostatic furnace for softening treatment.
3: Place the softened plastic sheet together with the wooden cabinet in the vacuum chamber, turn on the suction switch to suck and pump the air in the vacuum chamber. After the plastic sheet is cooled, the concave packaging or process mold same as the bubble bag mold is obtained.
4: Blister packaging finishing; The finished products are finished by trimming and finishing the produced products, which can be sold after packaging.
Raw material price: according to the purpose of the product, determine the material and grade of the material to be used, and find a low-cost supplier of the material. Film thickness: pre estimate the thickness of the film to be used for the product, and determine the number of typesetting according to the thickness and shape of each part of the molding. Calculate how many molds can be arranged in a plate according to the overall size and shape of the product. If the density is arranged, the product quality will be reduced, Thinning will increase the material loss and increase the cost. The material loss rate: the main factors are the product shape, product quantity and the degree of fit between the overall dimension and the chassis of the blister. The more square the shape and the larger the output, the smaller the loss rate