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1. The low-quality glue filling valve has air leakage and low processing accuracy. The valve cannot be closed tightly, which will cause glue dripping of the glue filling machine.

2. If the rubber valve is used for a long time, or the glue itself is corrosive, it will cause the damage of the seal. In this case, the rubber valve will have a sealing gap when closing the glue, and the suction will be greatly buckled, which will also drip the glue. Therefore, when the rubber valve is used for a long time, it will drip the glue. First change the seal and try it!

3. The glue filler particles are too large and the proportion is too large, resulting in the wear of the sealing ring. Replace the glue with better quality, so the problem can be solved.

4. If the air pressure is too small, it will also cause glue dripping. If the air pressure is too small and the cylinder is weak up and down, it will also cause glue dripping due to insufficient suction back. Try increasing the air pressure a little.

5. This phenomenon often occurs after the rubber valve is closed. 95% of this phenomenon is caused by the small diameter of the needle used. Too small needle will affect the flow of liquid and cause back pressure, resulting in dripping soon after the rubber valve is closed. Too small needle will also affect the exhaust bubble action when the rubber valve is used This problem can be solved by changing a larger needle. The conical oblique needle has less back pressure and smooth liquid flow. The air in the liquid will drip after the rubber valve is closed. It is best to remove the air in the liquid in advance or use glue that is not easy to contain bubbles Or centrifuging and defoaming the glue before using it.

To sum up, when you encounter glue dripping from the double liquid glue filling machine, remove the glue valve, check whether the sealing ring is corroded, and test it one by one. I believe you will find the root cause of glue dripping, and then take corresponding methods, and your glue dripping problem is likely to be solved!