Archimedes Type drip pump working principle: Compressed air into the rubber bottle (syringe), the glue into the feed tube, glue flowing through the fixed time, a certain speed of rotation of the screw. The rotation of the screw forms a shear force on the adhesive, so that the adhesive flow along the thread, the rotation of the screw on the adhesive constantly pressurized, so that it from the drip needle mouth outflow. It is characterized by flexibility with no fixed limit on the size of the dispensing point. It can be adjusted by software. However, when the large glue point, the screw rotation time is long, will reduce the output of the entire machine. In addition, the viscosity and flow characteristics of the adhesive will affect its stability.
Contactless drip pump working principle: Compressed air into the rubber bottle (syringe), the glue into the piston chamber connected to the feed tube, heated here, temperature controlled to achieve the best consistent viscosity. Using a ball seat structure, the glue is filled due to the gap left by the ball retracting from the seat. When the ball comes back, the acceleration produces the power to disconnect the glue flow, so that it ejected from the drip needle nozzle, dripping onto the plate to form a glue point. The characteristic is to eliminate the traditional method to produce the glue point pull tail. There is no problem with the wear of the glue needle and the interference with other parts. No needle nozzle damage. No scrap due to substrate bending and damage to the needle nozzle.