MOQ | 1 pc |
Packaging | Standard export wooden pallet |
Lead Time | 30-120 working days |
1. Product name,
specification model and equipment weight size:
1.1 Product Name: Cold Feed Extruder
1.2 Specification model: XJWP-120X20D
1.3 Equipment weight: about 5 tons
1.4 Dimensions (length X width X height): about
4200X1200X1600mm
1.5 Equipment layout:
1. Special rubber head; 2. Fuselage; 3. Five-section automatic temperature control system; 4. Feed roller device; 5. Feed hopper; 6. AC motor; 9. AC speed control cabinet; 10. Screw cooling Device; 11. Base.
2. Main technical
performance parameters:
2.1 Screw diameter: Ф120nn
2.2 Working length of screw: 1920mm
2.3 Screw length to diameter ratio: 20:1
2.4 Screw speed: 4.5-45r/min
2.5 Drive motor power: 110kw-1500r/min
2.6 Power conditions: 3-phase, 380V
2.7 Adapted Mooney viscosity: ML (1+4) 100℃ 50-90
2.8 Design output: 500-600KG per hour
3. Technical
description
3.1 Extruder:
3.1.1 Screw: (customized outsourcing)
A. Material: 38CrMoALA;
B. The surface is nitrided;
C. Hardness ≥ HRC62
D. Nitrogen layer depth ≥0.55mm
E. Structure: Adopts German Telest structure, with good extrusion
stability and large glue output.
a. It has a hollow structure over the entire length of the screw
to facilitate temperature control.
b. The rotation direction of the thread of the rotary joint is
opposite to that of the screw.
c. The screw head size is according to the enterprise
standard.
d. Do 10kg/cm2 inside the screw for more than 1 hour water
pressure test without leakage.
3.1.2 Barrel and bushing:
A. Barrel
a. Welded structure, tempered after welding, do 10kg/cm2,
hydraulic test for more than 1 hour, no leakage.
b. The fuselage flange connected to the machine head can be
processed according to customer requirements.
B. Bush: with exhaust port, the exhaust port does not run
rubber
a. Material: 38CrMoALA;
b. The surface is nitridized, and our factory heat treatment
workshop has imported nitriding furnace;
c. Hardness ≥ HRC66;
d. Nitrogen layer depth ≥0.55mm;
3.1.3 Feeding roller: structure obtained national
patent
A. Material: 38CrMoALA, roller surface nitriding treatment,
hardness ≥HRC62, hard layer depth ≥0.55mm;
B. Structure:
a. Internal circulation of water;
b. Can be connected to rotary joint;
c. The feed roller gear is made of 20CrMoTi, and the surface is
carburized. The average depth of carburizing is 1.5mm;
d. The feed roller is driven by the gear reducer shaft through
the gear, and the speed ratio gear has sufficient strength and
wear resistance;
e. The speed ratio gear is lubricated with grease;
f. There is a rubber scraper to scrape off the rubber material on
the surface of the roller. The scraper is fixed on the barrel and
the gap between the roller and the roller can be adjusted. The
feeding roller can be rotated and opened;
g. The feed roller bearing is lubricated with grease.
3.1.4 Reducer
3.1.4.1 Design conditions
A. Working condition coefficient ≥ 1.75
3.1.4.2 Three-stage transmission, parallel shaft output, noise
less than 85db(A);
3.1.4.3 The output shaft has a hollow structure, the screw is
inserted into it and transmits torque;
3.1.4.4 with peep window;
3.1.4.5 has oil mark with scale and oil outlet with
plug;
3.1.4.6 A lubrication system composed of independent lubricating
oil pumps, etc., to facilitate forced lubrication of gears and
bearings;
3.1.4.7 The top of the gearbox is equipped with an exhaust valve,
and the oil outlet of the gearbox is located at the lowest part
of the box;
3.1.5 Temperature control pipeline:
3.1.5.1 The pipeline is arranged on the operation side of the
extruder row;
3.1.5.2 The soft connecting pipe should be resistant to
temperatures above 120℃;
3.1.5.3 All valves have nameplates;
3.1.5.4 Hydrostatic test, under 10kg/cm2, under 1 hour of
hydrostatic test, there is no leakage;
3.1.6 Base:
A. The extruder and the motor are installed on the same
base;
B. Pins should be positioned between the upper and lower case of
the gearbox;
C. The base has sufficient strength and rigidity to withstand the
torque and vibration loads of the extruder;
D. Rough machining the surface of the base for installation and
connection;
E. There are more than two planes on the base to facilitate
installation and alignment;
F. After the standard is installed, the center mark will be
printed on the extruder, gearbox and machine base;
G. There are lifting hooks or lifting holes for
lifting;
H. The area of the base is as small as possible, but fully
leave the motor installation position;
3.1.7 Temperature control device
3.1.7.1 Structure and working principle:
The system adopts forced circulation of media, and controls the
temperature of each section independently in six units. Each unit
is composed of a water pump, an electric heater, a temperature
control instrument, a cooling water on-off solenoid valve, an
automatic exhaust valve, a platinum thermal resistance, and an
electrical contact pressure. Table (shockproof) and other
components, the circulating water pump injects the medium
(softened water) into the electric heater (the automatic exhaust
valve discharges the gas in the system), flows through the barrel
through the pipeline, the machine head, and the screw return to
the suction port of the pump After the temperature of each
section is set, the circulating water will heat the barrel, head,
screw, etc. through the heater or heat the barrel, head, screw,
etc. in the working state due to the heat generated during the
rubber material processing, Heat is discharged through
circulating water, heating power per unit: 6KW, control
temperature range: room temperature-90℃; control temperature
accuracy: ± 2℃; (using imported constant temperature
machine)
3.1.7.2 Unit description
The first unit: control the screw temperature;
The second unit: control the temperature of the extrusion section
of the barrel;
The third unit: controlling the temperature of barrel
plasticizing section I;
Unit 4: Control the temperature of barrel plasticizing section
II;
Unit 5: Control the temperature of barrel plasticizing section
III;
Unit 6: Control the temperature of the feeding section of the
barrel;
Unit 7: Control the head temperature.
3.1.7.3 Suppliers and models of main supporting parts
Circulating water pump: German Wilo Company
Temperature regulator: Omron
3.1.8 Electrical control system:
The extruder is controlled by a DC drive and has protection
functions such as overcurrent, overload, phase loss,
undervoltage, demagnetization, and zero speed start of the main
motor;
4. Details of main supporting parts
Serial number |
Name |
Subcontractor |
1 |
AC drive |
Delta Corporation |
2 |
AC motor |
Zhejiang Special Motor Manufacturing Co., Ltd. |
3 |
Temperature controller |
Omron |
4 |
solid state relay |
Schneider |
5 |
Circulating pump |
German Wilo |
6 |
Automatic disconnection, buttons, indicator lights, etc. |
Schneider |
5. Power
conditions
5.1 Main power supply: 3~~~380V/50Hz
5.2 Control power supply: 1~~~220V/50Hz
5.3 Water: 2kg/cm2
6. Coloring: Standard
6.1 Color:
A. Extruder, frame;
B. Temperature control;
C. Safety cover;
6.2 Paint method
A. Anti-rust primer: 2 layers
B. Toning topcoat: 2 layers
7. Noise and vibration:
7.1 Noise: 1 meter away from the equipment, noise
≤85dB(A)
7.2 The deviation of the center line between the motor and the
reducer:
1) Angle deviation: 10/10mm
2) Center height difference: 5/100mm
8. Inspection and
acceptance
8.1 Inspection before leaving the factory: In addition to the
inspection according to the manufacturing process of the
equipment itself, special inspections are also carried out on the
following items;
8.1.1 Extruder
a. Screw and barrel dimensions;
b. Hardness of screw and barrel material.