Analysis of factors affecting 4cc Lotion Pump liquid discharge accuracy
Pump body structure design:
Material selection: The choice of pump body material directly affects the service life and corrosion resistance of the pump. Stainless steel has good corrosion resistance, but the price is high; engineering plastics have good cost performance, but the temperature resistance may be poor.
Processing accuracy: The processing accuracy of each component of the pump body directly affects the sealing of the pump and the stability of the liquid discharge. The higher the processing accuracy, the more stable the performance of the pump.
Flow channel design: Unreasonable flow channel design will produce eddy currents or dead corners, resulting in uneven liquid mixing and affecting the liquid discharge accuracy.
Piston and sealing ring:
Material selection: The material of the piston and sealing ring should have good compatibility with the emulsion being transported to avoid chemical reactions.
Match clearance: Too large a fit clearance is prone to leakage, and too small a fit clearance will increase friction and affect the life of the pump.
Wear condition: The piston and sealing ring will wear after long-term use, resulting in a larger fit clearance and affecting the sealing.
Drive motor:
Speed ​​stability: The fluctuation of the motor speed will directly affect the liquid discharge.
Torque: Insufficient motor torque will cause the pump to be unable to overcome the pipeline resistance and affect the liquid discharge speed.
Emulsion characteristics:
Viscosity: Too high emulsion viscosity will increase the load of the pump and affect the liquid discharge speed and accuracy.
Density: Too high emulsion density will also increase the load of the pump.
Particle size: Too large particles in the emulsion may clog the pump body.
Environmental factors:
Temperature: Temperature changes will affect the viscosity of the emulsion, thereby affecting the liquid discharge volume.
Humidity: In a high humidity environment, the emulsion is easy to deteriorate, affecting the performance of the pump.

Specific measures to improve the liquid discharge accuracy
Optimize the pump body design:
Finite element analysis: Use finite element analysis software to optimize the pump body structure to improve the rigidity and durability of the pump.
Flow field simulation: Optimize the flow channel design through flow field simulation to reduce eddy currents and dead corners.
Select the appropriate piston and seal ring:
Material test: Test the corrosion resistance and wear resistance of pistons and seal rings of different materials to select the most suitable material.
Adjustment of the clearance: According to the characteristics of the emulsion and the working conditions of the pump, adjust the clearance between the piston and the sealing ring.
Use high-precision motor:
Servo motor: The servo motor has the characteristics of high precision and high response speed, which can realize accurate control of the output volume.
Frequency conversion speed regulation: The motor speed is adjusted by the frequency conversion speed regulator to realize stepless adjustment of the output volume.
Temperature control:
Constant temperature water bath: Use a constant temperature water bath to control the emulsion temperature and ensure the stability of the emulsion viscosity.
Heating or cooling device: Install a heating or cooling device on the pump body as needed to control the emulsion temperature.
Online monitoring and control:
Flowmeter: Install a flowmeter to monitor the output volume in real time, and adjust the operating parameters of the pump according to the feedback signal.
PID control: Use the PID control algorithm to realize closed-loop control of the output volume.
Regular maintenance:
Cleaning: Clean the pump body and pipeline regularly to remove dirt.
Lubrication: Lubricate the pump body regularly to reduce wear.
Inspection: Regularly check the wear of pistons, seals, motors and other parts, and replace worn parts in time.