Automatic extrusion hollow blow molding machine composition and the role of each structure
The rapid and stable production of the automatic extrusion hollow blow molding machine is inseparable from the close cooperation between the automatic extrusion hollow blow molding machine structure. This article will introduce the key structure and function of automatic extrusion blow molding machine.
Before understanding the automatic extrusion blow molding machine composition mechanism, we first understand the automatic extrusion hollow blow molding machine process.
Automatic extrusion hollow blow molding machine production process
Molten raw material, line forming embryo
The type embryo is extruded by an extruder
The type embryo enters the mold and is formed
Cold cutter cutting billet
The bottom blow needle goes into the mold and blows air
Mold opening
Remove the product with a cold cutter
Now let's get down to business
Automatic extrusion hollow blow molding machine structure
Extruder:
Processing of raw materials, mainly plasticized plastics. The core part of the extruder is the screw. Its working principle is that the pressure and shear force generated by the high-speed rotation of the screw can make the raw materials sufficiently mixed and plasticized. The raw materials used for extrusion blow molding are generally HDPE, PE, PP and so on. The plasticizing of these plastics requires the use of special screws for blow molding.
The automatic extrusion hollow blow molding machine uses IKV screw. Compared with the traditional screw, the plasticization efficiency is increased by 1.5 times, and the plasticization effect is more uniform.
Die head:
To control the uniform extrusion of the embryo, and to control the uniform distribution of the wall thickness of the embryo, especially in the production of multi-layer extrusion blow molding products, the wall thickness requirements are more strict. The wall thickness of extrusion hollow blow molding products is also a headache for many blow molding manufacturers.
As a manufacturer of automatic extrusion hollow blow molding machine, Deman breaks through the traditional die head design and develops multi-layer die head design, which is widely used in large automatic extrusion hollow blow molding machine. It can better control the product wall thickness and greatly improve the quality of multi-layer extrusion hollow blow molding products.
Cold cutting knife:
Cut off the excess type embryo, in addition, after the product is finished forming, the product can be removed.
Sealing device:
The open end of the blank is clamped tightly.
Mold clamping device:
The main function is to open, close and clamp the mold, and control the mold movement on the blow molding station. Here plays a key role in the hydraulic system of the extrusion hollow blow molding machine.
Blow needle:
The structure is in the embryo extrusion, blowing air into the embryo, so that the blank expansion close to the inner wall of the mold forming.
Pneumatic system:
The main control is the operation of the blow needle, including the pre-blow air, the air blown to the blank, the movement of the blow needle. In addition, it also controls the cold cutting tool and wall thickness of the extrusion hollow blow molding machine to a certain extent.
Control Panel:
It is mainly to monitor and control the running state, electrical system, heating system, temperature and other aspects of the automatic extrusion hollow blow molding machine, control the continuously variable speed of the DC motor of the extruder, the temperature control of the cylinder heater and the mold heater area, can monitor the working state of the automatic extrusion blow molding machine and the whole forming process of the mold in real time.
The above is the basic structure of the automatic extrusion hollow blow molding machine and the role of each structure, the understanding of the automatic extrusion hollow blow molding machine structure can not only better understand the automatic extrusion hollow blow molding machine, at the same time, when the extrusion hollow blow molding machine failure, can make a basic judgment for the problems.
This is the end of the introduction of the composition structure of the automatic extrusion hollow blow molding machine and the role of each structure. If you want to know other questions about the automatic extrusion hollow blow molding machine, please continue to pay attention to Deman Plastic Machinery. We not only provide reliable quality products, but also update the related industry news.
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