Melt Metering Pump
Main features
Melt metering pumps are reciprocating positive displacement pumps used for accurate metering. Usually, the stability accuracy of the metering pump does not exceed ± 1%. The pressure is set according to the screw pressure.
How to improve the dimensional accuracy of products
How to improve the dimensional accuracy of products during plastic extrusion molding?
The outlet pressure of the extruder has large fluctuations due to various factors, which will definitely affect the dimensional accuracy of the product. If we install a melt pump between the outlet of the extruder and the die, it can be used To stabilize the pressure fluctuations at the outlet of the extruder, making linear extrusion possible, thereby improving the dimensional accuracy of plastic products and increasing the output of the extruder per unit time. Melt pump is a kind of positive displacement conveying equipment. High-precision gear gap and volumetric structure design make stable and balanced extrusion possible. In chemical fiber, granulation, plastic film, sheet, plate, profile, pipe, wire, etc. Cables, wire drawing, compound extrusion and other production lines have been widely used and achieved relatively good results.
Pump advantage
1. It can realize stable extrusion, improve the dimensional accuracy of extruded products, and reduce the scrap rate.
2. Increase output, reduce energy consumption, achieve low temperature extrusion, and extend the life of the machine.
3. With linear extrusion characteristics, it is easy to coordinate the work of upstream and downstream equipment.
The control system adopts Siemens PLC programmable control mode and is equipped with advanced man-machine interface. It can carry out all-round control of pressure, temperature, flow rate and speed, and the worry-free switching between automatic and manual control functions. The control system can eliminate each Various factors cause the pressure fluctuation of the extruder, stabilize the pressure of the discharge port, and maximize the advantages of the melt pump in precision extrusion.
Performance parameter table
Pump type | Flow Rate | Frequency/reducer motor type | Screw specification | Width of pp melt blown |
UK-P-10CC | 10-20kg/h | 1.5kw/1:20 | Φ45 | 600mm |
UK-P-20CC | 20-60kg/h | 1.5kw/1:20 | Φ65 | 1200mm |
UK-P-25CC | 25-75kg/h | 1.5kw/1:20 | Φ65 | 1200mm |
UK-P-30CC | 60-90kg/h | 2.2kw/1:20 | Φ90 | 1600mm |
UK-P-50CC | 80-150kg/h | 3kw/1:20 | Φ105 | 2400mm |
UK-P-100CC | 150-200kg/h | 4kw/1:20 | Φ120 | 3200mm |
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