Dispensing machine manufacturers teach you to solve common problems of glue valve
In the process of using the automatic glue dispenser for a long time, we may encounter various failure problems, and the dispensing valve, as an important component of the glue dispenser, is prone to use failures. Below, Qizhong Automation will tell you about the common problems and solutions of the glue valve of the dispensing machine accessories.
1. Pneumatic glue valve does not glue
1) Whether the working pressure of the air source is too low, the pressure valve should be adjusted appropriately to increase the working pressure.
2) The glue gun is not cleaned, and the glue solidifies and blocks the channel. At this time, the channel must be cleared.
3) The viscosity of the glue is not suitable. If the viscosity is too large, the resistance will increase, the glue will be discontinuous or the glue will not come out. Therefore, it is necessary to choose the glue that meets the requirements.
2. Air leakage of the glue valve of the dispensing machine accessories
1) Air leakage at the air inlet: The air connection between the air pump and the rubber valve is not sealed enough. You can choose to replace the joint or connect the air pipe to the air connection of the rubber valve and fix it with iron hoops.
2) Air leakage from the valve body: remove the screw, re-install it, and then tighten the screw. Or seal it with glass glue, if there is serious air leakage, please contact the dispenser manufacturer to replace the valve body.
3) Air leakage at the front end of the valve tube: the glue is too long, so that the front cover cannot be tightened. Or the front cover itself is not screwed in place.
4) Air leakage at the back end of the valve: the sealing ring is damaged, or the rear muffler is damaged, please contact the dispenser manufacturer for replacement.
3. Precautions for the use of glue valves for dispensing machine accessories
1) The compressed air pressure connected to the valve cannot exceed 7bar.
2) Do not connect compressed air before disassembling the valve.
3) In order to ensure the reliable operation of the rubber valve, the residual glue must be removed according to the solvent recommended by the sealant manufacturer after use (it is not allowed to soak the rubber valve in the solvent).
4) If the glue still slowly seeps out from the head when the glue valve does not work, it may be caused by the wear of the inner gasket and tie rod, and it needs to be replaced by the glue dispenser manufacturer.
5) When using the rubber valve, the front cover must be tightened.
6) It is recommended to wear goggles when using all pneumatic tools.
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