Many automatic pet bottle blowing machine factories have made difficulties when choosing blow molding machine equipment. It is normal to be confused if they don’t know which one to choose. There are various types of blow molding machines. Buy for your own needs. Expensive pet bottle blow molding machines may be fine, but they may not be suitable for your needs. Today we will talk about the difference between this automatic blow molding machine and semi-automatic blow molding machine.
Whether it is a fully automatic blow molding machine or a semi-automatic blow molding machine is similar to blowing bubbles. Specifically, the working principle of the plastic extruder: after the plastic and the hopper enter the extruder barrel, as the screw rotates, it is forced to the direction of the machine head by the thread. Due to the resistance of the filter screen, the dividing plate and the die of the machine head at the head, and the capacity between the screw threads is gradually reduced, the advancing material is subject to great resistance, and at the same time, it is heated by the heat introduced by the barrel; the other- On the one hand, when the plastic is under the action of compression, shearing, stirring and other forces during the movement, the friction with the barrel, the screw and the friction between the plastic molecules will generate a lot of heat. Due to the continuous increase of the temperature of the plastic in the machine, its physical state gradually changes from a glassy state to a highly elastic state, and finally becomes a viscous state, and is further completely plasticized. Since the screw is constantly rotating, the plasticized plastic is extruded from the die of the die at the same pressure and in the same amount, which is called a plastic product with a certain shape. After cooling and setting, the extrusion molding work is completed.
The principle is the same, what is the difference between the automatic blow molding machine and the semi automatic bottle blow molding machine? In fact, the difference between the two in terms of operation is very different.
Semi automatic bottle blow molding machine is also called manual blow molding machine. Listening to the name, it is known that it is controlled by manual operation. This is the case. Therefore, the semi automatic blow molding machine has small investment, easy operation, simple maintenance, low output and high operating intensity of employees. can be adjusted at any time.
The fully automatic blow molding machine is relatively simple, the efficiency is much higher than that of the semi-automatic, and almost no manual operation is required.
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