2.1 Main technical parameter:
Extrusion system:(screw, barrel)
Screw diameter: ¢80mm, 172mm
Maximum output: 550 kg/h
Screw construction is specially designed for PVC powder material, through conical clusal method, conduct heterodromous rotation, speed: 1-34.7r/min
Screw material: using high quality alloy steel 38CrMoAIA, by nitriding treatment under high temperature, nitriding depth: 0.5-0.7mm, surface hardness: HV740-940
Screw core temperature control: using the constant temperature device of screw core and internal recycle device for heat conduction then control the temperature of screw core+oil circulation and temperature control. Total torque: 1 ~ 34.7r/min
Barrel material: high quality alloy steel 38CrMoAlA, by nitriding treatment under high temperature, nitriding depth: 0.6-0.7mm, surface hardness ≥ HV940
Inner roughness: Ra≤1.6um
Barrel temperature control system
Heating zone: aluminium casting heating ring + stainless steel shell + cooling fan+ oil circulation of gear oil pump
Heating zone qty: 5 zone, heating total power 38kw
Cooling fan power: 4x0.55kw/set
Head connector: 38CrMoAIA, by hardening, tempering and surface nitriding treatment, runner surface is plated with hard chrome(Cr), using confluence format.
Pressure control of the extruder: pressure sensor
2.2 Quantitative feeding system
2.2.1 Using stainless steel feeding hopper
2.2.2 Quantitative feeding device
2.2.3 Feeding motor power: 1.5kw three phase asynchronous motor, connected with micro cycloid pin transmission, motor speed range: 10 ~1500 r/min;
Feeding screw speed range: 1 ~ 50 r/min
2.2.4 Feeding device speed regulator, controlled by AC ABB frequency converter
2.3 Vacuum air discharge device, the device is for barrel
2.3.1 Vacuum pump: direct connection water ring vacuum pump 1 set
2.3.2 Vacuum pump power: 2.2kw
2.3.3 Vacuum pump motor working format: three phase asynchronous motor
2.3.4 Vacuum degree: 0~0.075 Mpa
2.4 Transmission speed reducer system
2.4.1 High torque speed reduce box
2.4.2 Water cooling device
2.4.3 Speed reduce box gear material: 20CrMoTi, gear decelaration through the integration of harden gear surface and slope gear surface.
2.4.4 It adopts German technique, having long using life, low noise and low heating.
2.4.5 Horizontal speed reduce box, the main frame is connected with speed reduce box through connecting shaft.
2.4.6 Distributor box: from single axis torque output to twin axis torque output through super cone.
2.4.7 Box material: high quality alloy
2.4.8 Axis material: 40Cr
2.4.9 Ratio/rating: 34.3:1
2.4.10Lubrication system: gear drive
2.4.11Gear pump of circulated lubrication oil: circulation lubrication oil.
2.4.12Water cooling device in control of high temperature lubrication oil.
2.5 Main motor system:
2.5.1 DC main motor
2.5.2 Power of main motor: 90KW 380V, 50Hz, 3 phases
2.5.3 Speed regulate way of main motor: 591 DC speed regulator
2.5.4 Speed: 1450rmp
2.6 Extrusion machine overall dimension & weight
2.6.1 Overall dimension: 5100 x 1650 x 2550mm
2.6.2 Center height: 1100mm
2.6.3 Machine weight: 6200KG
2.7 Electrical control system:
2.7.1 Superior design electrical control cabinet
2.7.2 RKC temperature control meter, PID temperature regulator
2.7.3 591 DC speed regulator
2.7.4 SIEMENS AC contractor
2.7.5 Emergency stop device and alarm system
2.7.6 Barrel temperature control has 5 zones, including 1 core confluence temperature control, 1 screw and barrel constant temperature control.
2.8 Alarm system detection range:
2.8.1 Overcurrent protection and alarm system
2.8.2 Screw loose protection device
2.8.3 Extrusion machine center height: 1100mm
2.8.4 Equipped with 700kg/h spring feeding device
Low voltage apparatus
Button/slide switch Schneider, France
Contactor Siemens
Air switch Delixi
Intermediate relay Omron
Temperature controller RKC, Japan
Heating ring device stainless steel aluminium die casting heater |