Blowing machine classification and difference

2019-05-20

Three categories of blow molding machines


Blowing machines are mainly divided into three categories: extrusion blow molding machines, injection blow molding machines and special structure blow molding machines.


The processing technology is mainly divided into one-step method and two-step method. At present, most of the blow molding machines are still two-step blow molding machines, that is, the plastic raw materials must first be made into preforms and then blown. Currently commonly used in PET is environmentally friendly plastic. Blow molding machine: After the liquid plastic is sprayed out, the wind is blown out by the machine, and the plastic body is blown to a cavity of a certain shape to make a product. This machine is called a blow molding machine. It is also a type of blow molding machine, namely a hydraulic bottle blowing machine.


One-step and two-step blow molding machine molding process, mainly used for PET and BOPP hollow container molding. Both have their own characteristics and are widely used. In comparison, the two-step method is more suitable for centralized production of preforms and dispersion-blown bottles; and one-step equipment is more suitable for online production of beverage companies.



The difference between automatic blow molding machine and semi-automatic blowing machine


There is not much difference in quality, but the bottle blown out by the fully automatic machine will be slightly better than the semi-automatic, mainly due to factors such as temperature control and program analysis in time, and fast movement of the action.


Automatic blow molding machine: high price, high output, labor saving, need better technical staff to maintain. Fully automatic and efficient, the quality is generally stable due to the absence of operator influence.


Semi-automatic blow molding machine: small investment, easy operation, simple maintenance, low output, and high employee operation intensity.


There is no difference in the quality of the bottles that are blown out. The difference is the process of operation. There are more semi-automatic ones. People need to look at them. They can be adjusted at any time. The automatic efficiency is high, just copying.



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