Plastic granulator LN-air-cooled die face hot cutting machine function: enhanced modification: PE, EVA, etc. + calcium carbonate, talc, titanium dioxide, carbon black, etc. (usually filled with hot air cooling at 80~90) can be degraded Masterbatch formula: PP, PE, PS, etc. + starch, additives, etc. (usually filled with hot air cooling at 80~90) Flame retardant masterbatch: PE, EVA, etc. + antimony trioxide, magnesium hydroxide, hydrogen Aluminum and so on.
LN-air-cooled dies face hot-cutting granulator Technical features: The equipment used in this method is simple and easy to operate. The disadvantage is that when the yield is low, it is easy to produce cosmid. The extruder used has a diameter of 40 to 250 mm. Technical parameters of the screw used for dry hot cutting. The cutters are 2-8, and the shape of the cutter can be long or sickle-shaped, and the latter is less prone to granules. The granulator is designed in such a way that the cutter that rotates the granulator is attached to the die plate, and the hot strip material that has just been extruded is directly cut into pellets and then cooled. The hot cutting method is not easy to damage due to the high temperature of the material. Air-cooled die face hot-cutting granulator In order to facilitate the cleaning of the machine head and the replacement of the filter, the plastic granulator has made a bold technological innovation in the connection structure between the machine head and the barrel.
The main points of this innovation are:
1. Replace the original connecting flange with a Huff locking flange.
2. Use the motor to drive the screw forward and reverse to open and close the locking flange instead of the original manual operation. 3. Use the motor to drive through the worm and worm gear to move the dicing tool holder (including the discharge plate splitter) to expose the filter. Board to replace the original manual operation. It turns out that it takes 5-10 minutes for a person to clean the machine head, and now it takes only 1-2 minutes for one person.
The structure has the advantages of greatly reducing the labor intensity, shortening the cleaning time, reducing the operator and improving labor productivity.
Schematic diagram of air-cooled granulator process: metering feeder→ twin-screw main machine→ air-cooled hot granulator→ cyclone separator→ air-cooled vibrating screen→ storage bin LN-air-cooled granulator technical parameters: (1) The material motor is an AC motor, and the main feeding motor power is 0.75KW. (2) The speed control system uses IN VT frequency converter. (3) The screw is a double-headed screw, and the speed ratio of the reduction gearbox is 17:1. (4) The motor and the reducer are directly connected, and the horizontal agitator is provided in the feeding body. The feeding is smooth and uniform, and the bridge is not bridged.
2, gear reducer (1) reduction ratio: 3:1 (2) output shaft speed: MAX500RPM (3) input shaft speed: MAX1500RPM (4) main drive gearbox deceleration and torque distribution part integrated, using parallel three-axis Designed and compact. NSK bearings are used for deceleration, torque distribution, and both output shaft radial bearings.
3, lubricating oil cooling system.
4. Main motor (1) Main motor: 18.5KW (AC motor) (Siemens Bayer) (2) Motor speed (MAX): 1500RPM
5, screw (1) screw diameter: 35.5mm (2) L / D = 40: 1 (3) screw is the building block type (4) screw mandrel 40CrNiMoA material, threaded components, and mandrel are involute joint, high strength The load is large, and the assembly and disassembly is convenient. (5) The screw component material is high-quality high-speed tool steel W6MO5Cr4V2, high-temperature vacuum quenching heat treatment. (6) The overall hardness is HRC58~62.
6. Machine barrel (1) Barrel: length L=150mm/section, a total of 10 cylinders, material 45 steel alloy sleeve, the cylinder is cooled by soft water circulation. (2) The first cylinder is the feeding cylinder, the ninth cylinder is the vacuum cylinder, the tenth is the extrusion cylinder, and the other cylinders are closed cylinders.
7. Heating system Body 1 0 sections. Temperature control section Cartridge section Heating power (KW) The heating plate type melting temperature thermocouple is used to measure the melting temperature of the material, and the pressure sensor is used to measure the material pressure.
8. Vacuum degassing device
9. Soft water circulation system (1) Soft water cooling in the barrel (2) Italian imported solenoid valve (3) The water pipe is treated with copper chrome plating. (4) Cooling from: water cooling (5) Cooling pump: 0.55KW (6) Soft water tank is made of stainless steel (7) Water pipe is made of stainless steel, no rust, not easy to be corroded, durable
10. Interlocking control system
11. Hot-cutting auxiliary machine 1. The screen changing device (1) adopts hydraulic plate type screen changing device, cast iron plate type changing net heater, hydraulic station motor power 1.5KW. (2) Hot-cut.
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