The blister machine, also called the thermoforming machine, is a machine that sucks the heated plasticized PVC, PE, PP, PET, HIPS and other thermoplastic plastic coils into various shapes of advanced packaging boxes, frames and other products. Using the vacuum suction force generated by the vacuum pump, the heated and softened PVC, PET and other thermoplastic plastic sheets are blister-molded into various shapes of vacuum covers, blister trays, blisters, etc.
The principle of blister forming machine: blister forming is also called thermoforming. This forming process mainly uses the vacuum suction generated by the vacuum pump to soften the heated PVC, PET, PETG, APTT, PP, PE, PS and other thermoplastic plastic sheets The material is vacuum-formed into various shapes of vacuum hoods through molds, or attached to the surface of various shapes of products.
The main structure of the machine is composed of feeding, drawing, upper and lower electric heating furnace, lower gate, multi-functional adjustable size, lower mold plate, upper mold, upper gate, knife gate, slicing, placing film, and vacuum equipment. ；
The blister molding technology, namely the thermoforming processing technology of plastic sheet (board) material, is one of the industrial technologies in the secondary processing of plastics. It is different from the one-time processing technology such as injection molding and extrusion. It is not for plastic resin or pellets for heating molding or continuous molding with the same cross-section through the die; nor is it using machine tools, knives and other mechanical processing methods to cut some plastic materials Next, to obtain the required shape and size, but for the plastic sheet (board) material, heating, using mold, vacuum or pressure to deform the sheet (board) material to achieve the required shape and size, supplemented by supporting procedures to realize the application purpose.
The blister molding equipment includes clamping system, heating system, vacuum and compressed air system, and molding mold.