Meltblown metering pumps leverage volumetric changes generated by gear meshing to achieve precise metering, pressurization, and stable delivery of molten material. As core equipment in the meltblown process, they ensure accurate material control and safeguard product quality.
Core Working Principle
Power Drive: An electric motor provides power, driving the drive gear inside the pump body to rotate. This, in turn, drives the driven gear to achieve precise meshed rotation.
Negative Pressure Material Suction: During gear meshing, the side where the teeth disengage forms a sealed negative pressure chamber. This efficiently draws the plasticized melt from the upstream extruder into the pump chamber.
Pressurized Propulsion: When the teeth engage, the melt within the compression chamber is subjected to stable pressure. The melt is then forcibly and uniformly propelled through the gear gaps and pump flow channels to the outlet.
Quantitative Regulation: The displacement per gear revolution is fixed. By adjusting the motor speed, the melt output flow rate can be precisely controlled, flexibly adapting to the spinneret requirements of meltblown fabrics of different specifications.
Key Collaborative Mechanisms
Extruder Coordination: Receives melt from the extruder, effectively buffering and eliminating pressure fluctuations during transport to ensure stable feed for subsequent processes.
Spinneret Compatibility: Delivers pressurized, uniform melt smoothly into the spinneret, laying the foundation for high-pressure air drawing of ultra-fine fibers. This directly ensures meltblown fabric thickness uniformity and fiber fineness.
Email: sale@meltpump.com
WhatsApp: +86 158 3833 1071
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WhatsApp： +86 158 38331071
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