One, the items are different
1, Blow Molding Machine (Blow Molding Machine) is the machine that refers to the bottle blowing, the most superficial explanation is that it can be plastic particles (softened into liquid) or good bottle embryo through a certain process means of blowing into a bottle machine. Bottle blowing machine is convenient, fast, molding volume, after the emergence of the majority of manual blowing replaced by most of the beverage companies used.
2, the liquid plastic sprayed out, the use of the machine blowing out the wind, the plastic body will be blown attached to a certain shape of the mold cavity, so as to make products, this machine is called blow molding machine. Plastic is melted and quantitatively extruded in the screw extruder, and then molded through the mouth film, and then there is a wind ring blowing wind cooling, and then there is a traction machine at a certain speed, and the winding machine will be wound into a roll.
Two, different characteristics
1, blow molding machine
Plastic hollow containers to lightweight and inexpensive, safety and other characteristics, widely used in the beverage, pharmaceutical, cosmetic, food and chemical industries, but also to attract more manufacturers to choose plastic containers to replace the previous glass containers.
Today's plastics industry, the most advanced equipment, molds and raw materials are displayed in front of the new technology, new applications emerge one after another, looking at the field of plastic hollow molding is also fruitful. With the world soaring oil prices, plastic raw material prices are also high, the development of low energy consumption, raw material saving alternative products is also one of the market trends.
2, blow molding machine
1) screw center shaft and cylinder made of 38CrMoAlA chromium, molybdenum, aluminum alloy by nitrogen treatment, with high thickness, corrosion and wear resistance and other advantages.
2) The die head is chromium-plated, and the screw mandrel structure makes the unloading more equal and smooth, and better completes the blown film. The complex structure of film blowing machine makes the output gas more even. The lifting unit adopts square frame platform structure, and the height of lifting frame can be adjusted automatically according to different technical requirements.
3) The unloading unit adopts tare rotating equipment and center rotating equipment, and adopts torque motor to adjust the film smoothness, which is easy to operate.
Three, the principle is different
1, bottle blowing machine
1) Preheating
The preform (embryo) will be irradiated by infrared high-temperature lamps to heat and soften the preform (embryo) part of the preform (embryo) body, and in order to maintain the shape of the bottle mouth, the mouth of the preform (embryo) does not need to be heated, and therefore need a certain cooling device to cool it down for the operation.
2) Blow molding
This stage is the preheated billet (embryo) is placed into the blow mold has been done, high-pressure inflation, the billet (embryo) blowing and pulling the bottle into the desired bottle.
The bottle blowing machine on the market is generally divided into automatic and semi-automatic two kinds.
Full-automatic bottle blowing machine through the operation of the robot will blow the bottle of the two operations together to complete, eliminating the middle of the preheated preform (embryo) into the blow mold process. Greatly speed up the production rate, of course, the price is also higher than the semi-automatic.
2, blow molding machine
Automatic wind ring structure using a dual-airport approach, in which the lower air outlet to maintain a constant air volume, the upper air outlet is divided into a number of ducts on the circumference of the air channel by the wind chamber, valves, motors, etc., by the motor-driven valves to adjust the opening degree of the ducts, to control the size of the air volume of each air channel.
Control process, detected by the thickness probe film thickness signal transmitted to the computer, the computer will be thick and thin signal and the current set average thickness comparison, according to the amount of thickness deviation and curve trend of change in arithmetic, control the motor drive valve movement, when the film is thin, the motor moves forward, the air outlet closed small.
On the contrary, the motor moves in the reverse direction, the wind mouth increases, by changing the size of the wind volume at each point on the circumference of the wind ring, adjusting the cooling speed at each point, so as to make the film lateral thickness deviation control in the target range.
Baidu Encyclopedia - Blow Molding Machine
Baidu Encyclopedia - Blow Molding Machine