Principle of screw pump dispenser:
The colloid enters the thread gap under a constant supply pressure, the motor drives the screw to rotate, and the force generated by the screw rotation causes the colloid to move along the spiral and extrude from the needle. The amount of glue is determined by the nature of the colloid, the parameters of the screw, and the parameters of the needle.
Advantages: Compared with other pneumatic types, the accuracy and consistency of the dispensing are higher, the control is more convenient and flexible, and it can be applied to the dispensing of a variety of colloids.
Principle of Piston Dispenser:
The glue in the injection cylinder flows into the replenishment chamber through the feed port under constant pressure. Once the piston moves upward, the glue will automatically be replenished due to the pressure. The downward movement of the piston rod will force the glue to squeeze out from the needle. The amount of glue squeezed out is determined by the diameter of the cylindrical surface in the extrusion cavity and the downward movement distance of the piston.
Advantages: The dotted droplets have very good consistency; the amount of glue has nothing to do with the viscosity, temperature and pressure of the glue. Good consistency during high-speed dispensing, especially suitable for small-volume dispensing.
The colloid enters the thread gap under a constant supply pressure, the motor drives the screw to rotate, and the force generated by the screw rotation causes the colloid to move along the spiral and extrude from the needle. The amount of glue is determined by the nature of the colloid, the parameters of the screw, and the parameters of the needle.
Advantages: Compared with other pneumatic types, the accuracy and consistency of the dispensing are higher, the control is more convenient and flexible, and it can be applied to the dispensing of a variety of colloids.
Principle of Piston Dispenser:
The glue in the injection cylinder flows into the replenishment chamber through the feed port under constant pressure. Once the piston moves upward, the glue will automatically be replenished due to the pressure. The downward movement of the piston rod will force the glue to squeeze out from the needle. The amount of glue squeezed out is determined by the diameter of the cylindrical surface in the extrusion cavity and the downward movement distance of the piston.
Advantages: The dotted droplets have very good consistency; the amount of glue has nothing to do with the viscosity, temperature and pressure of the glue. Good consistency during high-speed dispensing, especially suitable for small-volume dispensing.
