Blow molding machine is a kind of equipment for making […]
Blow molding machine is a kind of equipment for making plastic granules into hollow containers through a blow molding process. There are two common types now, one is a hollow extrusion blow molding machine using PP and PE, and the other is PET , PC or PP two-shot injection stretch blow two-step blow molding machine. The two-step blow molding machine is widely used in carbonated beverage bottles, mineral water bottles, cosmetic bottles, edible oil bottles, pesticide bottles, large-diameter bottles, high temperature resistant bottles and other packaging containers of any shape as raw materials of crystalline plastics such as PET and PP. . For many newcomers to the plastic bottle profession, before buying, there is a lot of common sense that they need to know and learn, and they need to buy according to their own needs. The more expensive a blow molding machine is, the better, but it doesn't have to be right for you. As there are many types of bottle blowing machines, they are generally divided into semi-automatic bottle blowing machines, hand-inserted automatic bottle blowing machines, and automatic bottle blowing machines.
Now briefly talk about the two steps of the two-step bottle blowing machine in production
First, warm up
The preform is irradiated with an infrared high-temperature lamp, and the preform body is heated and softened. In order to maintain the shape of the bottle mouth, the preform mouth does not need to be heated, so a certain cooling device is required to cool it.
At this stage, the preform that has been preheated is placed in a completed blow mold, the stretching rod is stretched down for high-pressure inflation, and the preform is blown and drawn into the required bottle shape.
Features of Semi-Automatic Blow Molding Machine:
1. Can blow 0.1-5 liter PET bottles (one out of two), 5L-20L (single cavity)
2. Using two molds to blow 500 ml bottles, the output value can reach 2000
3.Advanced PLC control system, time control can be up to 0.01 seconds
4.Special air storage equipment
5.Infrared tube is used for heating, strong penetration, preform rotation and heating, orbital revolution, uniform heating, fast and reliable
6. Different heating lamps are equipped with independent temperature control equipment to ensure that the preform has an aspirating heating effect
7. The direction of the heating lamp can be adjusted according to different preforms
8. Only one person is required for operation, no special training is required
9. Installation and start-up
10. Scrap rate of finished products is less than 0.1%
Fully automatic bottle blowing machine does not require manual operation. The output value is different models of 2000-8000 bottles per hour. Features:
A. Use advanced microcomputer control system with stable functions;
B. The conveyor automatically feeds the blanks;
C. Infrared tube is used for heating, strong penetration, preform rotation and heating, orbital revolution, uniform heating, fast and reliable;
D. The width and height of the lamps and reflectors in the heating zone can be adjusted to suit the preform heating of different structures, and there is an automatic temperature exhaust device to ensure the constant temperature of the drying tunnel;
E. Each mechanical action 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, which has the advantages of no pollution and low noise;
G. The gas path plan divides the action and blowing into three parts to satisfy the requirements of different pressures for bottle blowing and action;
H. Use high-pressure and double-crank connecting rod for mold clamping, strong clamping force;
I. There are two methods of operation: manual and automatic;
J. The unique and safe valve position planning is safe and reliable, which makes the gas path clear at a glance;
K. The production process is fully automated and has the advantages of low capital investment, high efficiency, convenient operation, simple repair, and safety.
L, the bottle body is free from pollution
M. The cooling system reaches the desired cooling effect
N. Installation and launch