Tooth Profile Optimization for Mixing Proportional Pump of Solvent-Free Laminating Mixer

The accuracy and uniformity of mixing ratio directly affect the quality of solvent-free laminating products. In this paper, the gear pump as a proportional metering in the solvent-free laminating mixer is modeled and analyzed. The flow pulsation generated by the gear pump during the working process is studied. By establishing the formula of instantaneous flow at the outlet of the arc gear pump, the factors which affect the flow pulsation of arc gear pump are studied. An optimization model of the tooth profile parameters of the arc gear pump is constructed whose goal is to minimize the flow pulsation coefficient. Through the simulation, the results show that the optimized tooth profile parameter of arc gear pump can guarantee a more stability flow quantity. Finally, an arc gear pump flow experiment platform is found, and the experiment results verify the advantages of the optimized result.