Project Description
3 LAYER COEXTRUSION BLOW MOLDING MACHINE GRT70-5LII/1-3P
3 LAYER COEXTRUSION BLOW MOLDING MACHINE, MULTI LAYER BLOW MOLDING MACHINE
Presentation of the basic configuration:
Extrusion system
Screw: specially designed based on material’s trait, High quality nitriding steel 38CrMoAlA,with nitriding surface HV≥800,brittleness≤2;
Barrel: High quality nitriding steel 38CrMoAlA,with nitriding surface HV≥900,brittleness≤2;
Drive mode: inverter + hard gear surface decelerator;
Presentation of the basic configuration:
Extrusion system
Screw: specially designed based on material’s trait, High quality nitriding steel 38CrMoAlA,with nitriding surface HV≥800,brittleness≤2;
Barrel: High quality nitriding steel 38CrMoAlA,with nitriding surface HV≥900,brittleness≤2;
Drive mode: inverter + hard gear surface decelerator;
Heating mode: porcelain heaters;
Temperature controlling: automatic temperature control model;
Mode of cooling: automatic fan cooler.
2. Die head system
Central incoming die head, totally eliminating the converging line of products, the surface is colorful and uniform; this die head is able to be used to match polyethylene, polypropylene and so on;
Heating mode: stainless steel heater
Temperature controlling: temperature controlling model;
3.Clamping system
Double bar horizontal motion structure in moving, opening and closing mold, making the clamping force equally distributed, so the cut is smoother.
Redesign in accordance with the molding requirement of the sample for efficient productivity.
Frame: it’s able to move up and down。
4.Hydraulic system
Adopted proportional pressure controlling, with hydraulic valve of Japan Yuken and pump of Taiwan Sensor, balanced and accurate action, prolonged useful life, sensitive response.
5.Electric controlling system
Program controlling with Japan Mitsubishi PLC; complete machine communication, parameter setting / modification and menu displaying with the Taiwan Hitech liquid crystal display and touch screen; every parameter could be set and modified directly with the complete obstacle self-diagnosing function, menu operated directly and conveniently。
Extrusion motor with the inverter controlling and alloy hard gear surface decelerator driving, saving power, lower noise, balanced and stable screw rotation。
Safety configuration: safety door, safety switch protection。
BASIC PARAMETER | Raw material | PE.PP… |
Max. product volume | One die head:5L | |
Dry cycle | 700PC/HR(dry cycle) | |
Machine size | 3.2×2.1×2.3(M) | |
Machine weight | 8.5T | |
Installed capacity | 52KW | |
Average Consumption | 26KW/H | |
Type | Name | Parameter |
PLASTICISING SYSTEM | Main parameters | Efficiency and low consumptionof plastics systems, frequency control |
Reducer | Hardened, high-strength, low-noise, anti-wear reducer | |
Injection screw | ∮40mm,∮70mm,∮40mm,Length and Diameter ratio is L/D=25 ,38CrMoALAHigh-quality nitride steel, energy efficient gradient-type mixing screw. Barrel of the feeding with cooling function | |
Plasticizing capacity | 20 Kg/H +70Kg/H +20Kg/H | |
Heating zone | 7zonesCast aluminum heater,Auto heating | |
Heating power | 12KW/H | |
Coextrusion material motor | Outer layer: 11KW, middle layer: 37KW, inner layer: 11KW | |
Cooling fan | 7 zone Power:85W,Auto cooling | |
EXTRUDER DIE | Description | Stainless steel die head,Centre input die head |
Quantity of die head | One cavity die head with 3-layer | |
Center distance of double die | 150mm | |
Max. die diameter | 140mm | |
Heating zone | 4zones | |
Heating power | 5.2KW | |
CLAMPING PAR | Description | High strength, high stiffness,, linear low-friction linear guides clamping body |
Clamping force | 120KN | |
Mold stroke | Min-Max: 148~508mm | |
Mold thickness | 150-250mm | |
Max. mold size | WXH: 320×400mm, | |
Max. mold platen size | WXH: 320×400mm, | |
ELECTRIC SYSTEM | Description | Japan MitsubishiPLC+ Colorful touch screen, making the operation easy. Automatic malfunction alarm with selfdiagnosis |
Temperature control | Communication | |
Action control | Japan ,MTSUBISHI PLC | |
Electrical protection | Current overload, short circuits, automatic protection | |
HYDRAULIC SYSTEM | Description | Energy-efficient multi-function hydraulic manifold block, proportional control |
Electric motor | Germany, SIEMENS(SSML),11KW | |
Pump | Double vane pump | |
Valve | Taiwan,NORTHMAN / Japan,Yuken | |
Hydraulic pipe | Double high pressure wear-resistant tubing | |
System pressure | 100Kg/cm² | |
Cooling way | Independent water circulation, oil cooler | |
PNEUMATIC SYSTEM | Description | TaiwanAIRTAC combination of pneumatic components |
Air pressure | 0.6Mpa | |
Airconsumption | 0.6M3/min | |
COOLING SYSTEM | Description | Mold, barrel, oil cooling water source three independent, non-interfering |
Cooling medium | Natural water (chilled water better) | |
Water flow | 60L/min | |
Water pressure | 0.2-0.6MPa | |
WALL THICKNESS CONTROL SYSTEM | Main function | Automatic wall thickness controller system 100 points MOOG ,JAPAN brand,Set the wall thickness curve |
System Configuration | Japan 100points parison wall thickness control |