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SCJ120A PLASTICS BLOW MOULDING MACHINE

 The machine consists of frame, extruder, controllable die head, moulding machine, blow unit, mechanical hand, electric, hydraulic, pneumatic systems and automatic loading machine mainly. It is suitable for producing blow containers made of heavy molecular weight PE.
Specifications and parameters of it are as follows:
Ⅰ.Extruder:
Screw diameter: φ90, screw length to diameter ratio (L/D) =30/1.
Material: high-grade nitrided steel 38CrMoAlA is selected as the material of the screw. Through surface nitriding treatment, the thickness of nitrided layer is more than or equal to 0.4MM, and its hardness is HV900.
Cylinder: high-grade nitrided steel 38CrMoAlA is selected as the material of the cylinder. Through inner surface nitriding treatment, its hardness is more than or equal to 900 (HV≥900).
Driving type: driven by Z4 motor, controllable silicon for stepless regulating speed.
Driving power: 75KW
Screw speed: 0-75R.P.M.
Plasticizing capacity: ≥180Kg/h
Temperature control: imported automatic temperature controller.
Heating method: cast aluminium heating ring plus thermal insulation material and stainless steel cover are employed.
Heating zone: 4 zones.
Cooling method: wind cooling of cylinder.
Hopper base: cooling with circular water.
Ⅱ.Accumulator head:
Whole structure: heart shaped double-layer runners structure have advantages of material’s entering and going out by order, changing of material and color being easy and quick.
Accumulator cylinder capacity: 12L
Max. injection weight per time: 9Kg ( calculated according to PE raw material)
Heating method: stainless steel heating ring is used.
Heating zone: 5 zones
Die head material: main parts adopt nitrided steel 38CrMoAlA
Temperature control: employ imported automatic temperature controller.
Die dimensions: It is determined depending on each product, and a set of die is provided with machine.
Rate of injection: 0.4-1.2Kg/s
Die diameter: 100-300mm.
Radial adjustment amount of die: 2mm
Wall thickness control: 64 points axial wall thickness controlling system has the feedback function of actual curve of wall thickness, which makes adjustment very easy.
Ⅲ.Clamping unit:
Type: The opening structure without pulling rod helps to load and unload mould.
Platen dimensions: 750mm×900mm
Distance between platens: 600mm-1280mm
Clamping force: 500KN
Rapid mould opening/closing speed: 2×5m/min. (adjustable)
Slow mould opening/closing speed:2×1.5m/min. (adjustable)
Ⅳ.Blow unit:
Three blow units can be selected according to blowing process.
Expansive stroke: 2×150mm
Extending and contracting stroke: 200mm
Ⅴ.Mechanical hand:
Clamping diameter: φ350mm
  Advance and retreat stroke: 1200mm
Ⅵ.Hydraulic system:
The system adopts hydraulic proportional servo controlling unit, the key elements are all imported products such as proportional valve, servo valve, pilot valve, etc., which features stable run, reliable functions, exact actions, long service life and quick response.
The working pressure of main hydraulic system: 12Mpa.
The working pressure of auxiliary hydraulic system: 8Mpa.
Ⅶ.Controlling system:
The system adopts imported strong function PLC+ feel-type screen for control, which makes operation convenient and visualized. It is stable and reliability.
The system can mainly realize the following functions:
1. Real time controlling actions of the machine.
2. 64 points axial parison control.
3. Mould opening/closing shift-speed curve control.
4. Motor regulating speed for extruder.
5. Auto-alarming under the conditions of overtime and not reaching the correct position.
6. General-purpose, multiple-functions system for memorizing 8 sets of data.
7. Real time displaying the current working procedure.
8. Real time displaying the trouble and alarming information.
9. The system is automatically reset before the circular action begins.
10. Manually set the varied conditions to ensure safety.
11. Temperature setting may be executed.
12. The data is modified directly on the screen.
13. Temperature can automatically be controlled under the condition of no working of feeling screen.
Ⅷ.Energy configuration:
Capacity of total motors: 180KW
Motor power of extruder: 75KW
Motor power of main hydraulic oil tank: 44KW
Heating power of extruder: 4×6KW
Heating power of accumulator head: 37KW
Consume of compressed air: (0.5-0.7)×30(Mpa·m3/h)
Consume of cooling water: 0.3×20×30(Mpa·℃·m3/h)
Ⅸ.Overall dimensions L×W×H (cm)=922×571×489
Ⅹ.Total weight is about 32 ton.
Packaging in separate elements.

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