Folding blister packaging refers to one of the types of blister packaging, also known as double buckle blister, which mainly uses materials such as PVC, APET, PETG, PP, etc. It is made by adding buckles on the mold, and the workmanship is very fine. However, when making a product, the two ends are directly fastened, which is called folding vacuum molding. The characteristic is that it can better package the product, but it also looks more beautiful. If necessary, you can also use staples. There is also a three fold blister packaging on top of the folded blister packaging product, and the three fold blister packaging follows the same principle as the folded blister packaging.
Production of folding vacuum molding molds
To make samples, our manufacturer usually has a vacuum forming mold department, which is also the first step in producing vacuum forming molds. The mold material is gypsum powder. (In mold making, especially folding vacuum forming molds, there are certain difficulties, so technicians need to be careful to make folding vacuum forming molds.). Samples can only be made after technical personnel carefully make sample molds according to customer requirements. However, the production of copper molds and upper mold frames.
2 Production Technology
The dimensional accuracy of the outer surface of plastic parts formed by mold forming method is relatively high, and it is generally used for plastic parts with small forming depth. If the depth of the plastic part is large, especially for small plastic parts, the bottom will become noticeably thinner. The vacuum forming of multi cavity concave molds saves materials compared to the same number of convex molds because the distance between the concave mold cavities is relatively close. Shenzhen Huihuachang vacuum packaging can process many plastic parts of the same area of plastic sheets.
For vacuum formed parts that require the bottom thickness not to be reduced, convex molds can be used for vacuum forming. The principle is to first heat and soften the tightened plastic sheet under a heater. When the heated sheet first contacts the convex mold, it is cooled and loses its thinning ability. When the material continues to move downwards until it fully contacts the convex mold; Then vacuum is applied, and the edges and surrounding areas are formed by thinning. Convex mold vacuum forming is often used for thin-walled plastic parts with raised shapes, and the dimensional accuracy of the inner surface of the formed plastic parts is relatively high.
The principle of sequentially vacuuming the concave and convex molds is to first fasten the plastic sheet to the concave mold and heat it. After softening, the heater is moved away, and then compressed air is blown into the convex mold. The concave mold vacuums the plastic sheet, causing it to bulge. Finally, the convex mold is inserted downwards into the bulged plastic sheet and vacuumed from it. At the same time, compressed air is introduced into the concave mold, allowing the plastic sheet to adhere to the outer surface of the convex mold and form. This method blows the softened plastic sheet to extend and then form it, resulting in a relatively uniform wall thickness, which can be used to form deep cavity plastic parts.
3-fold blister punching
After the image product is produced, it is connected as a whole piece. The product needs to be separated by a large knife first, and then folded in half. Generally speaking, the upper and lower knife molds are used to punch and fold the blister. After folding, the surrounding materials of the folded product are directly cut off by a punching machine. This is a finished product of the folded blister
