Film blowing machine is suitable for all kinds of high - grade film packaging. This film because of its good barrier, fresh, moisture, frost, oxygen, resistanceOil, can be widely used in light and light packaging. Such as a variety of fresh fruit, meat, pickles, fresh milk, liquid drinks, medical supplies. Plastic film blowing machine
The cooling methods can be divided into two types: external cooling and internal cooling.
1. The external cooling method is the earliest application. Under the action of the cooling ring, it passes through a circle along the extrusion direction and the outer surface of the membrane bubble
Cooling air is released from the v-ring to create uniform cooling air around the ring. Inside the cooling ring, the upper air is more than the lower air
The fast average velocity is expelled. The shape of the membrane bubble is consistent with that of the air cooling ring
Heat transfer.
2. Internal cooling is directly cooled by cooling through membrane bubbles. Because the flow rate of air inside the membrane bubble is relatively low and irregular, so
External cooling is preferred. Film blowing machine blowing process, in order to ensure the quality of film products, must consider the film forming before the stability of the film bubble, can effectively control the product pass rate. Film blowing machine blowing film output, in addition to the film bubble constraints, but also to take into account the film blowing machine cooling system
System. A perfect cooling system requires reasonable configuration and stability of the film blower.
