Blowing machine is a kind of equipment for making plastic granules into hollow containers by blow molding process. There are two kinds of blow molding machines. One is a one-shot hollow extruding blower using PP and PE, and the other is using PET. , PC or PP two-shot injection blowing two-step blowing machine. Two-step blow molding machine is widely used in carbonated beverage bottles, mineral water bottles, cosmetic bottles, edible oil bottles, pesticide bottles, large-caliber bottles, high-temperature bottles, and other packaging containers of any shapes such as PET, PP and other crystalline plastics. Many people who are new to the plastic bottle industry have a lot of knowledge to learn and learn before they buy it. They need to buy it according to their own needs. The more expensive blowing machine is naturally better, but not necessarily for you. Because there are many types of blow molding machines, they are generally divided into semi-automatic blow molding machines, hand-operated automatic blow molding machines, and automatic blow molding machines.
Now briefly talk about the two steps of the two-step blow molding machine in production
First, warm up
The preform is irradiated with an infrared high-temperature lamp to heat and soften the body portion of the preform. In order to maintain the shape of the bottle mouth, the mouth of the preform does not need to be heated, and therefore a certain cooling device is required to perform the cooling operation.
Second, blow molding
In this stage, the already preheated preform is placed into the already-performed blow mold, and the stretching rod is extended to inflate the high pressure and the preform is blown into the desired shape of the bottle.
Semi-automatic blowing machine features:
1. Can blow 0.1-5 liters PET bottle (one out of two), 5L-20L (single cavity)
2. Blowing of 500 ml bottle using two cavity molds can reach 2000 bottles per hour
3. Advanced PLC control system, time control can be accurate to 0.01 seconds
4. Special air storage device
5. The use of infrared lamp heating, penetrating power, the preform rotation, heating, track revolution, heating evenly, fast and reliable
6. Different heating lamps are equipped with independent temperature control device to ensure that the preform has an ideal heating effect
7. The direction of the heating lamp can be adjusted according to different preforms
8. Operation is only one person, no special training is required
9. Installation, start simple
10. Finished product rejection rate is less than 0.1%
Automatic blow molding machine does not require manual operation, the output is different models of 2000-8000 bottles per hour, features:
A. Using advanced microcomputer control system, stable performance;
B. The conveyor automatically sends blanks;
C. The use of infrared lamp heating, penetrating power, perform rotation, heating, track revolution, heating evenly, fast and reliable;
D. The width and height of the lamps and reflectors in the heating zone can be adjusted to suit the heating of preforms of different structures, and there is an automatic temperature-removal device to ensure the constant temperature of the drying tunnel;
E. Each mechanical movement has a safety self-locking device. When a certain process fails, the program will automatically switch to a safe state.
F. Each action is driven by an oil pump. It has the advantages of no pollution and low noise.
G. The air circuit design divides the operation and air blowing into three parts to meet the needs of different pressures for blowing bottles and movements;
H. High-pressure and double-cylinder linkage locking, strong clamping force;
I. There are manual and automatic methods of operation;
J. The safe and reliable valve position design makes the gas path clearer.
K. the production process is fully automated, with the advantages of low investment, high efficiency, easy operation, simple maintenance, and safety.
L.bottle body from pollution
M. cooling system achieves the ideal cooling effect
N. installation, start simple
O. bottle rejection rate is less than 0.1%