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Main technical parameters of plastic film
Applicable raw materials: LDPE LLDPE+LDPE
Product specifications: Product width 2500mm (folded diameter)
Product thickness deviation: National standard acceptance, with a production capacity of about 3 tons within 24 hours.
Equipment technical parameters:
Single screw plastic extruder
Screw form: New type of screw with mixing section
Screw diameter: Ø 75mm
Length to diameter ratio: 30:1
Screw material: 38CrMoALA
Processing technology: quenching and tempering treatment, nitriding hardness HV ≥ 960, nitriding thickness
0.3 —0.6mm， The brittleness is not greater than level 2.
Screw material: 38CrMoALA
Processing technology: quenching and tempering treatment, nitriding hardness HV ≥ 740, nitriding thickness 0.3-0.6mm, brittleness not exceeding level 2.
Heating control: Cast aluminum heater, divided into 3 zones for heating, with a heating power of 21KW,
Double digital automatic temperature control (1.0 level temperature control meter) with precise temperature control.
Cooling control: using fan cooling, divided into 3 zones for air cooling, using centrifugal blower, with low air pressure, high air volume, and rapid and accurate temperature control.
Fan flow rate: 504 cubic meters per hour
Blower pressure: 860pa
Gearbox: Hard tooth surface gear transmission, material 20CrMoTi, quenched and tempered carburizing treatment, gear hardening treatment and surface grinding, with smooth transmission, high torque, low noise, forced circulation oil lubrication, forced water circulation cooling oil temperature, long service life and other characteristics.
Main motor: 55KW variable frequency speed regulation
Inverter: Domestic brand inverter
Extrusion rate: 180Kg/h (LDPE)
Filter screen: Adopting a new cylindrical structure, it has good sealing and no leakage,
Replacing the filter takes a long time and is convenient and quick, saving time and effort.
Cast aluminum heater, divided into 1 zone heating, with a heating power of 4.5KW
2、 Die head: Ф 500 die head
Digesting and absorbing advanced foreign technologies, through computer optimization design, it has the characteristics of uniform material distribution and low resistance, ensuring that film products have good thickness uniformity, shortening the time for film introduction and machine head adjustment, reducing raw material waste and consumption caused by adjusting thickness uniformity, and thus reducing the production cost of film products.
Mold head form: center feeding spiral type.
Mold material: 45 # steel, quenched and tempered treatment, hard chrome plating and polishing treatment on the surface of the flow channel, uniform chrome plating layer, high smoothness, wear-resistant and corrosion-resistant.
Gap between mouth molds: 1.8mm
Heating control: cast aluminum heater, divided into 2 zones for heating, with a heating power of 12KW
III Wind ring section:
Wind ring form: dam type, uniform air volume, adjustable wind direction.
Outer diameter of wind ring: Ø 1400 mm
Fan power: 7.5KW
Duct: Rubber
Stable foam system: Stable foam board
5、 Herringbone board device
Form: Grid type herringbone board
Material: Galvanized pipe
6、 The first traction system
Structural form: Tower type structure, detachable, with safety operating platform and safety protective railing
Center height of traction roller: 7800mm
Traction form: Roll type traction (one steel roller and one rubber roller)
Traction roller specification: Ø 175X2700mm
Material of traction rubber roller: nitrile rubber
Guide roller specification: Ø 80X2700mm
Traction motor power: 2.2KW
Traction reducer: worm gear reducer
Traction line speed: 120m/min
The sprocket is made of 45 steel and undergoes high-frequency quenching.
7、 Splitting device: equipped with a pair of edge profiles
8、 Second traction:
Traction form: Roll type traction (one steel roller and one rubber roller)
Traction roller specification: Ø 160X2700mm
Material of traction rubber roller: nitrile rubber
Traction motor power: torque motor 10N/m
Traction reducer: Cycloid pinwheel reducer
The sprocket is made of 45 steel and undergoes high-frequency quenching.
9、 Expansion auxiliary device: using a rotating rubber bending roller with adjustable angle
10、 Roll up section
Form of winding: Double surface friction winding;
Roll diameter: Ø 120X2700 mm
Linear speed: 120m/min
Winder motor: 2.2KW
Roll up reducer: worm gear reducer.
The sprocket is made of 45 steel and undergoes high-frequency quenching.
Automatic coil changing device: PLC automatic control, fixed length automatic cylinder ejection cutting, air blown film, track type moving device, automatic coil unloading.
11、 Electric control cabinet:
The electrical appliances are produced by the Sino foreign joint venture Delixi brand,
Counting alarm device: intelligent electronic meter reader, fixed length alarm.
