With the development of science and technology, many industries have higher and higher requirements for product technology, so the requirements for dispensing accuracy of dispensers are also getting higher and higher. What factors will affect the precision of precision dispensers?
The following aspects affect the dispensing accuracy of the dispenser:
One. The distance between the needle of the dispenser and the working surface
Different needles are used for different dispensing needs. And some needles have a certain degree of stop, and some needles do not, so it is important to grasp the distance between the needle and the working surface. The distance between the needle and the working surface should be calibrated every time before the dispensing work.
Second, the choice of the dispensing needle of the dispenser
The needle of the dispenser should be selected according to the diameter of the product's glue point. Under normal circumstances, the size of the dispensing needle should be half of the size of the glue dot.If the needle of the dispensing machine is too large, it will cause the glue to overflow and affect the dispensing accuracy.
Third, the dispensing pressure setting of the dispenser
The setting of the dispensing pressure of the automatic dispensing machine is very important. Too much dispensing pressure will cause glue overflow, and too small pressure will cause glue leakage and intermittent dispensing.
Fourth, the influence of glue The higher the viscosity of the glue, it is easy to cause the phenomenon of glue pulling and glue absorption, which also has a certain influence on the accuracy of the glue dispenser.
Five, the influence of the dispensing valve The dispensing valve will affect the dispensing accuracy, and the dispensing with high precision requirements can be equipped with an imported dispensing valve, so that the dispensing accuracy will be higher.
Sixth, the impact of the dispensing system The first is the machine itself. At present, the automated packaging equipment on the market is still dominated by contact dispensing. Therefore, the error between the dispensing product and the fixture has a slightly greater impact on the dispensing accuracy. When the error between the dispensing product and the fixture is too large, the dispensing accuracy will be seriously affected, and the quality of the dispensing product cannot be guaranteed. In the actual operation process, the error can be reduced by adjusting the area of the dispensing product, the dispensing range and maintaining the stability of the fixture. Therefore, the dispensing operation generally sets a reasonable fixture according to the product itself.
