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Machine Classification Of Extrusion Blow Moulding Machine
- Mar 20, 2018 -

Blow molding machine can be divided into extrusion blow molding machine, injection blow molding machine and special structure blow molding machine three categories. The tensile blow moulding machine can be classified into each of the above categories. Extrusion Blow moulding Machine is a combination of extruder and blow moulding machine and clamping mechanism, which consists of extruder and mould head, blowing device, clamping mechanism, parison thickness control system and transmission mechanism. The mould head is one of the important parts that decide the quality of blow moulding products, and it usually has side feed mould head and central feed mould head. Large-scale products blow molding more use of storage cylinder type billet die. The minimum volume of the storage cylinder is 1kg, up to 240kg. The Parison thickness control device is used for controlling the wall thickness of the billet, and the control point is up to 128 points, generally 20~30 point. Extrusion Blow moulding machine can produce hollow products with volume range of 2.5ml~104l.

The injection blow moulding machine is a combination of injection moulding machine and blow moulding mechanism, including plasticizing mechanism, hydraulic system, control apparatus and other mechanical parts. The common types are three-position injection blow moulding machine and four-station injection blow moulding machine. Three-station machine has prefabricated billet, blowing and stripping three positions, 120 ° per station. Four station machine is more than one pre-forming station, 90 ° per station. In addition, there are 180 degrees between the work station of the two-station injection blow molding machine. The plastic container produced by injection blow moulding machine is precise in size, no more than two times, but the cost of mould is higher. The special structure Blow moulding machine is a blow moulding machine with a hollow body, which is made of sheet material, molten material and cold billet, which is blown with special shape and purpose. Because of the different shapes and requirements of the products produced, the structure of the blow moulding machine is also various.