What auxiliary equipment do three screw pelletizer have?

The three screw granulator is mainly used for the filling, blending, adding, modification, chlorination, polypropylene and high water absorption resin of rubber and engineering resins; the extrusion of degradable masterbatch, polyamide polycondensation and polyurethane polymerization; the granulation of carbon powder and magnetic powder, insulation material of cable, sheath, low smoke and halogen free flame retardant PVC electricity The cable material and the preparation of various silane crosslinking materials are mainly used for scientific research and teaching.

Next, the three screw pelletizer manufacturers will give you a brief introduction about what auxiliary equipment the three screw granulator has.

Preheating device for one and three screw granulator

Preheating of cable core is necessary for insulation extrusion and sheath extrusion. For the insulating layer, especially the thin layer insulation, the air hole can not be allowed. The wire core can completely remove the surface water and oil pollution through high temperature preheating before the extrusion. The main function of the sheath is to dry the cable core to prevent the possibility of the air Blowhole in the sheath because of the effect of the moisture (or the wet air around the cushion).

Two or three screw granulation machine straightening device

One of the most common types of plastic extrusion waste is eccentricity, and the various types of bending are one of the important causes of insulation eccentricity. In the sheath extrusion, the scratch on the sheath surface is often caused by the bending of the cable core. Therefore, straightening devices in various extrusion units are essential. The main types of straightening devices are drum type, pulley type, winch type, and drag, straightening, stabilizing tension and so on.

Three, three screw granulator cooling device

The molded plastic extrusion layer should be cooled immediately after leaving the die, otherwise it will be deformed under the action of gravity. The way of cooling usually adopts water cooling, and is divided into quench and slow cooling according to different water temperature. Rapid cooling is direct cooling of cold water, rapid cooling is beneficial to the molding of plastic cladding layer, but for crystalline polymer, due to sudden heat cooling, it is easy to residual internal stress inside the extruded layer, resulting in cracking in the process of use, and the general PVC plastic layer adopts quench.