What to do if the automatic dispensing machine leaks glue?
2025-06
Main reasons and solutions for automatic dispensing machine leakage are as follows:
Needle diameter issue: A needle diameter that is too small can cause the adhesive to flow poorly or even become blocked, leading to leakage. The solution is to replace it with a slightly larger diameter needle. A conical bevel needle is usually recommended, and air should be removed from the liquid before use.
Pressure issue: Unstable or improperly set pressure can also cause leakage. Adjust the air pressure and the pressure cylinder pressure value to ensure that the air pressure is within 15 MPa and the pressure cylinder pressure is in the middle or higher position. In addition, check the dispensing time to ensure that it is long enough to maintain stable dispensing.
Adhesive quality issue: Air mixed into the adhesive or the use of improper adhesive can also cause leakage. The solution is to perform deaeration before use or replace it with an adhesive that is not prone to foaming.
Equipment maintenance: Regularly clean the glue valve and needle to ensure that there is no cured residue or impurities. Mixing incompatible adhesives can cause chemical reactions, leading to leakage. The solution is to replace the needle with a clean one and ensure that the adhesive components are clear.
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