The full automatic glue dispenser is in the condition that the pressure difference at both ends of the valve is kept constant, the medium flows through the relative flow of the regulating valve and its opening. The flow characteristic of the regulating valve has three kinds of linear characteristic, equal percentage characteristic and parabola characteristic.
The relative stroke of the linear characteristic has a linear relationship with the relative flow. The change in the unit stroke is the same as the change of the flow rate. When the flow rate is large, the relative value of flow is small and the flow rate is small, and the relative value of the flow is changed greatly.
The flow rate is proportional to the two sides of the stroke, and it has the intermediate characteristics of linear and equal percentage characteristics. The working principle of the automatic dispensing machine is that the compressed air is sent to the rubber bottle (syringe), and the glue is pressed into the feed pipe dispensing machine schematic diagram, and the glue flows through the screw which rotates at a fixed time and at a specific speed. The formation of shear stress in rotary screw glue, the glue flow along the thread, the rotation of the screw in the glue on the continuous pressure, the outflow from the glue needle mouth.
The relative travel rate and relative flow rate of equal percentage characteristics are not linear. At each point of the stroke, the change of traffic volume caused by the change of unit stroke is directly proportional to the flow rate of this point, and the percentage of traffic change is equal.
Therefore, its advantage is that the flow rate is small, the traffic volume is small, and the traffic volume is large.
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