Co-extrusion Film Blowing Machine line
Exam.：Five-layer Co-extrusion Film Blowing Machine line，1.Blown film material: LDPE, LLDPE, mLLDPE;2.Machine width: 2600mm.3. Effective width of product output: 1500 mm ~ 2400 mm. 4. Screw structure configuration: 5 layers (A/B/C/D/E=75/75/90/75/75).5. Die mouth diameter: 500mm;6. Thickness blowing range: 0.03mm ~ 0.15mm; normal output: design extrusion volume: 1160kg/hr; normal output 420-500kg/hr, blowing functional film output varies (output and product thickness, width, performance related)7. Width deviation (with IBC film bubble cooling): ≤ ± 3mm, cutting edge ≤ ± 2mm.8. Equipment external dimensions: length 14.8 meters, width 9.2 meters, height 14.5 meters;9. Total installed power of the equipment: power supply: 380V 50HZ total power of about 620KW, running power of about 30 ~ 40% (with the size of the blown film specifications, thickness and raw material formulations have changed);10. Other parameters of the equipment: film winding diameter of up to φ800mm; maximum line speed: 90m/min;11. Energy consumption of the equipment: 320-350 kWh/ton (when producing other formulas or specifications, the energy consumption will vary according to the formula and specifications).12. Placement of the main machine: the main machine is placed in W-type direct connection; 13. Weight of the whole machine: about 46 tons.
Spec.1
1.Single-screw plastic extruder φ75mm (4 sets) (the screw is specially hardened, which not only has good corrosion resistance and wear resistance, but also has the characteristics of high output, low energy consumption and low temperature plasticization);；
Spec.2
Screw diameter φ75 mm, length-diameter ratio 32:1;；Structure: middle separation, barrier type, tail high mixing type;Material: Japan SACM645 material, surface nitriding, after nitriding, screw surface hardness HV ≥ 940, nitriding depth (unilateral) 0.47-0.7 mm; barrel tempering HB270 ~ 290, inner hole nitriding, depth 0.47-0.7 mm, hardness HV ≥ 920;
Spec.3
Screw processing technology: material forging and quenching and tempering treatment → fine processing → excircle roundness precision grinding → long-time nitriding heat treatment;(100 hours) → Low temperature tempering stress relief after machining;Barrel aperture φ75 mm, length-diameter ratio 32:1;Material: Japanese SACM645;Screw speed: 5-95r/min;
Spec.4
Extruder temperature control:A. Forced water cooling at the barrel feeding port (cooling by circulating water to further improve efficiency and prolong service life), and ceramic heating rings are used at the feeding section and mixing section;B. Barrel heating: zone 5, temperature control by temperature control module;C. Barrel cooling fan: zone 5 cooling, 250 W fan;
Spec.5
Gearbox:A. Gearbox lubrication mode: forced oil circulation lubrication;B. Gearbox cooling mode: forced water circulation cooling oil temperature;C. Gearbox oil filtration mode: removable external oil filter, with cooler d. 250 type reduction gearbox, equipped with 29428 thrust bearing, rear direct drive;The motor and the reduction gearbox are connected by a coupling.Advantages: three-axis linkage is adopted to increase torque, reduce friction, reduce noise, stabilize output, ensure extrusion stability, and ensure film stability; The main hardware shall ensure trouble-free operation for not less than 5 years.
Spec.6
Extruder main motor power 55 kw × 4 sets, using Beide Siemens motor, equipped with Huichuan inverter;Extruder installation slide rail: can move back and forth freely and adjust horizontally; Convenient maintenance, reduce the impact of thermal expansion and cold contraction on the equipment
Spec.7
Manual quick double screen change:A. Special sealing structure to ensure no leakage for 5 years;B. High-quality alloy steel is used for precision machining by CNC machine tool;C. Heating mode: stainless steel mica heating ring is adopted;D. Intelligent pressure display meter and sensor before screen change (the display can display the pressure change and melt temperature in real time, so that the operator can adjust the processing process in real time);
Spec.1
Single-screw plastic extruder φ90mm (1 set) (the screw is specially hardened, which not only has good corrosion resistance and wear resistance, but also has the characteristics of high output, low energy consumption and low temperature plasticization);Screw diameter φ90 mm, length-diameter ratio 32:1;Structure: middle separation, barrier type, tail high mixing type
Spec.2
Material: Japan SACM645 material, surface nitriding, after nitriding, screw surface hardness HV ≥ 940, nitriding depth (unilateral) 0.47-0.7 mm; barrel tempering HB270 ~ 290, inner hole nitriding, depth 0.47-0.7 mm, hardness HV ≥ 920;Screw processing technology: material forging and quenching and tempering treatment → fine processing → excircle roundness precision grinding → long-time nitriding heat treatment;(100 hours) → Low temperature tempering stress relief after machining;Barrel aperture φ90mm, length-diameter ratio 32:1;Material: Japanese SACM645;Screw speed: 5-95r/min;
Spec.3
Extruder temperature control:A. Forced water cooling at the barrel feeding port (cooling by circulating water to further improve efficiency and prolong service life), and ceramic heating rings are used at the feeding section and mixing section;B. Barrel heating: zone 6, temperature control by temperature control module;C. Barrel cooling fan: 6-zone cooling, 250 W fan;
Spec.4
Gearbox:A. Gearbox lubrication mode: forced oil circulation lubrication;B. Gearbox cooling mode: forced water circulation cooling oil temperature;C. Gearbox oil filtration mode: removable external oil filter, with cooler. D. 315 reduction gearbox, with 29434 thrust bearing, rear direct drive.;E、 The motor and the reduction gearbox are connected by a coupling.;F. Advantages: three-axis linkage is adopted to increase torque, reduce friction, reduce noise, stabilize output, ensure extrusion stability, and ensure film stability;
Spec.5
The main hardware shall ensure trouble-free operation for not less than 5 years.;The power of the main motor of the extruder is 90 w × 1 set, which adopts Beide Siemens motor and is equipped with Huichuan frequency converter;Extruder installation slide rail: can move back and forth freely and adjust horizontally; Convenient maintenance, reduce the impact of thermal expansion and cold contraction on the equipment;
Spec.6
Manual quick double screen change:A. Special sealing structure to ensure no leakage for 5 years;B. High-quality alloy steel is used for precision machining by CNC machine tool;C. Heating mode: stainless steel mica heating ring is adopted;D. Intelligent pressure display meter and sensor before screen change (the display can display the pressure change and melt temperature in real time, so that the operator can adjust the processing process in real time);
1.Five-layer co-extrusion die head (1 set)
2.（IBC）超声波控制膜泡内冷系统（1 套）；
3.3. IBC（膜泡内冷）控制系统：
4.Italy Xinke wind capacity type automatic thickness measuring wind ring (6 wind nozzles) + thickness measuring system
1. Bubble stabilizer (1 set);；
2.Herringbone fixture (1 set):；
3.Upper traction rotating device (1 set)；
4.CPC photoelectric automatic correction device (1 set)；
5.Second traction device (1 set)；
Adopting the center of the reel to take up the winding force, together with the taper control of the system, real-time calculation of the diameter of the reel. To achieve the film roll from small diameter to large diameter process, the winding motor force curve changes, to overcome the problem of equal tension due to different roll diameter. Finally achieve the purpose of the product inside tight and outside loose, so that the roll of film is not deformed.
1. Winding mode: automatic back-to-back, center + surface two winding modes, automatic film cutting, automatic roll changing, automatic unloading; automatic lifting air up shaft devices2. Effective length of roller: 2600mm;
3. Maximum winding width: 2400mm;4. front and rear winding device: rubber rollers: 2600mm * Ф370mm 2 groups. 5;5. Bending roller: 2600mm * Ф100mm;6. Maximum winding diameter: Ф800mm; (specific winding diameter and the strength of the winding shaft)7. Winding speed: Max 90m/min. 8;8. Tension control mode: fully automatic taper tension control system;9. Friction winding motor power: 3KW;10. Center winding motor power: 3KW;11. including slitting knife and side cutting knife device, slitting knife 6, side cutting knife 2;12.With 3″ gas expansion shaft 5 roots;13. 2 sets of flying knives, brand: Switzerland fastener.14. Position proportional control valve: FISTO;15.Electric control change: SMC
Small circuit breakers, AC contactors, intermediate relays.Buttons: Sino-French joint venture Shanghai Schneider host inverter switch;Master switch: Schneider;
Ammeter, voltmeter, control transformer: domestic famous brand products;
Wires with domestic high-quality national standard cables. The main control system adopts touch screen + PLC centralized control, including 15 inch B+R touch screen. It is convenient and simple to operate; centralized control of the whole machine, including processing temperature, screw speed, melt pressure, IBC bubble cooling system, external cooling air ring, electric bubble stabilizing device, film rotating traction system, film line speed, tension, winder and other systems. At the same time, it displays and monitors parameters such as temperature, pressure, current, voltage, tension, speed, length, etc., and has an automatic alarm function. On-site intelligent and precise control, monitoring and remote parameterization can be implemented.;Product;production process parameters and production progress;process parameters can be accessed, realizing digitalproduction and management.
SPEC.1
The complete machine tower consists of a three-layer platform and a two-layer winding platform;
SPEC.2
The total height of the complete machine tower is 14.5m;
SPEC.3
Color of tower: dark gray for guardrail and white for others
