Conical Twin Screw Forced Feeder

1. Basic introduction of conical twin screw feeder

The conical twin screw force feeder is suitable for more than 85% high-fill materials and various high-standard fiber-grade masterbatches, filling modification, blending modification (rubber-plastic blending, plastic alloy materials), functional masterbatches (carbon black masterbatches, flame retardant masterbatches, degradable masterbatches, double-proof masterbatches, etc.), halogen-free materials for cables, special materials (EVA hot melt adhesive, optical cable coating materials, UV-resistant plastics, etc.)

The lump materials mixed by the internal mixer can be directly fed into single and twin-screw extrusion granulation to form an automatic integration. It solves the labor and time consumption caused by traditional manual cutting and crushing, reduces costs for enterprises and increases production.

Applicable machines for conical force feeding machine:

Common configuration combinations include

Conical twin screw forced feeder + c,

Conical forced feeder + twin screw extruder,

Conical twin screw forced feeder + two-stage unit granulator,

or used alone.

 

2. Features of conical force feeder

1. The working surface of each part of the conical twin screw force feeder that is in contact with the material is treated with hard chrome plating. Integrating conveying, feeding, and extruding, it realizes automatic continuous operation and improves production efficiency.

2. The barrel of the conical twin screw force feeding machine can be a jacketed welded structure, which can be cooled by water, or heated by oil/hot water/steam to adjust the temperature to meet the temperature control requirements of different materials.

3. The feeding twin-screw of the conical twin screw forced feeder adopts a variable-diameter, variable-torque convergent structure, which enhances the extrusion capacity of the material. The feeding device can assist the mixing of the mixing materials and force feeding the extruder to improve the granulation efficiency and quality.

3. Basic structure and working principle of conical twin screw force feeder

The conical twin screw feeder is a forced feeding machine for extruder, including the extruder body and the feeding body installed on the feeding port of the extruder body.

A pair of oppositely rotating non-meshing main feeding rotors and secondary feeding rotors are installed in the feeding body;

One side of the feeding body is installed with a driving shaft sprocket that can drive the main feeding rotor and connect with external power equipment.

The other side of the feeding body is equipped with a split gear that drives the secondary feeding rotor to run. By installing a forced feeding body at the feeding port of the extruder,

And through the main feeding rotor and the secondary feeding rotor that rotate in opposite directions without intermeshing, the mixed material is forced into the single (double) screw main machine,

Furthermore, the forced feeding function is realized, the labor intensity is reduced, the feeding amount is increased, and the working efficiency is improved; it has the advantages of reasonable structure, convenient use, time-saving and labor-saving, and simple operation.

4. Structural configuration and process flow of conical twin screw feeder

Motor--inverter--reducer--gearbox--conical screw--feeding body--feeding hopper

The technological process of the conical twin screw feeder is:

The conical twin-screw is set in the barrel, which is composed of a main conical screw and a secondary conical screw.

A sliding base capable of sliding back and forth is provided on the fixed base, and a motor is provided above the rear of the sliding base.

The motor is connected with the reducer, and the output shaft of the reducer is connected with one end of the main shaft of the gearbox through a coupling.

The other end of the main shaft is connected with the main conical screw, and there is a driving gear on the main shaft, the driving gear meshes with the driven gear, and the driven gear is connected with the auxiliary conical screw.

A feeding body is arranged above the barrel.

The conical twin-screw feeder solves the complicated feeding procedure in the prior art plastic granulation process, and realizes the conical twin-screw feeding integrated unit for stable and continuous feeding to the extruder.

Nanjing Haisi is a professional manufacturer of granulating extruders for coloring/dyeing, filling masterbatch production, as well as plastic modification and compounding , plastic recycling. Innovative machines are built as per the concept of durability, high efficiency and economical power consumption.