Film blowing machine
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Film blowing machine workflow:
Put the dried polyethylene particles into the lower hopper, and enter the screw from the hopper by the weight of the particles. When the pellets contact the bevel of the thread, the rotating bevel faces the plastic and generates a thrust perpendicular to the bevel. Moving forward, during the moving process, due to the friction between the plastic and the screw, the plastic and the barrel, and the collision and friction between the particles, it also gradually melts due to the external heating of the barrel. The molten plastic is filtered out by the machine head to remove impurities and come out of the die head die mouth, cooled by the wind ring, blown through the herringbone board, the traction roller, and wound to wind the finished film into a tube.
Main structure of film blowing machine
It is mainly composed of extruder, machine head, die head, cooling device, foam stabilizing frame, herringbone plate, traction roller, take-up device, etc.
Extruder
The extruder is mainly composed of screw, barrel hopper, deceleration and drive motor. The drive motor adopts electromagnetic speed control motor (also can use frequency conversion ordinary motor), and the reducer is driven by the belt drive to make the screw rotate in the barrel; The plastic melted in the hopper plastic granules is squeezed out of the die head through the three-pass filter under external heating.
Die head
This unit adopts advanced spiral die head structure, based on the special characteristics of high-pressure, low-pressure, mixture, and recycled polyethylene materials, and comprehensively considers the design of main technologies such as helix angle, receding angle, fixed angle length, die opening, etc. Parameters, after a number of comparative tests to configure the appropriate die.
Cooling device
Composed of cooling air ring, air pipe, blower, etc.
Traction
It is composed of main components such as traction frame, herringbone plate, traction roller, winding mechanism and traction motor
Electrical control
Generally, the unit is equipped with a unit operation cabinet. The main button presses the main power to turn on the main switch of the motor. The body and tee can be controlled by the sub-button switch. Automatic temperature measurement and automatic temperature control, in the normal production process, the temperature can be automatically controlled to ensure that the production process is stable and reliable. There are many types of film blowing machines, including PE, PP, POF and so on.
If you need more information, please contact us.
If you want to know more about film blowing machine, please write to us !
上海笃厦工贸有限公司
Shanghai Duxia Industry and Trade Co.,Ltd.
Cellphone/WhatsApp/Wechat: Sasha +8615221892684
E-mail:sasha@bagmakingmachine-china.com,
Cellphone/WhatsApp: +8615221892684，
E-mail:sasha@bagmakingmachine-china.com,