Blow molding machine classification


1. Extrusion Blow Molding Machine: Extrusion Blow Moldi […]

1. Extrusion Blow Molding Machine: Extrusion Blow Molding Machine is a combination of extruder and blow molding machine and clamping mechanism. It is controlled by extruder and parison die, inflating device, clamping mechanism and parison thickness. System and transmission mechanism. The parison die is one of the important components that determine the quality of the blow molded product, typically a side feed die and a center feed die. The storage cylinder type blank die is often used for blow molding of large products. The storage tank has a minimum volume of 1kg and a maximum capacity of 240kg. The parison thickness control device is used to control the parison wall thickness, and the control point is up to 128 points, generally 20 to 30 points. The extrusion blow molding machine can produce hollow articles having a volume ranging from 2.5 ml to 104 l.

2. Injection Blow Molding Machine: It is a combination of injection molding machine and blow molding mechanism, including plasticizing mechanism, hydraulic system, control electric appliance and other mechanical parts. Common types are three-position injection blow molding machines and four-station injection blow molding machines. The three-station machine has three stations: precast parison, inflating and demoulding, each station is separated by 120°. The four-station machine has one more pre-forming station, and each station is separated by 90°. In addition, there is a two-station injection blow molding machine with 180° between stations. The plastic containers produced by injection blow molding machines are accurate in size and do not require secondary processing, but the mold costs are high.

3. Special structure Blow molding machine is a blow molding machine that blows a hollow body with special shape and use into a parison from sheet, molten material and cold billet. The structure of the blow molding machine varies depending on the shape and requirements of the products produced.