Leakage of dispensing valve of automatic dispensing machine
The rubber valve of the automatic dispensing machine often leaks after the rubber valve is closed. 95% of this situation is caused by the small diameter of the needle used.
Connect the air outlet of the dispensing controller to the syringe through the air pipe, and connect the syringe air valve to the air inlet of the dispensing controller.
Generally speaking, the length of mixing pipe and the control rod of automatic batching machine are used to determine the mixing degree and control glue. The mixing tube is a static mixing method, which consists of a series of left and right rotating blades arranged vertically in the sleeve. When glue a and glue B pass through the mixing pipe, cut them continuously to make the mixing even. The outlet of the mixing tube can be connected to the adapter, which is convenient to use any caliber needle, and ensures accurate glue output.
After the syringe is fixed in the syringe base, the air valve can be connected. Connect the air outlet of the dispensing controller to the syringe through the air pipe, and connect the syringe air valve to the air inlet of the dispensing controller. Connect the "dispensing" interface of dispensing machine to the signal input interface of dispensing controller through cable. Pedal connection: connect the pedal to the "operation" interface of the dispensing machine to control the operation of the dispensing machine. Z-axis cable connection: connect the z-axis connecting cable plug to the "z-axis" of the dispensing machine.
Too small needle will affect the flow of liquid, resulting in back pressure, resulting in liquid drop leakage shortly after the rubber valve is closed. Too small needle will also affect the movement of air bubbles when the rubber valve exhausts. As long as the larger needle is replaced, this problem can be solved.
The conical needle produces minimum back pressure and maximum fluid flow.
When the clearance of rubber valve is completed, the phenomenon of liquid drop appears in the air. It is better to eliminate the air drop, otherwise it is not easy to switch to the state containing bubble gum. Or use glue after centrifugal degassing. Strong glue (quick drying glue) is blocked in rubber valve fittings and pipes, which is mainly caused by excessive moisture or repeated use of strong glue. Make sure to use fresh instant glue. Clean the pipeline in humid acetone. Dry air and in plant air pressure shall be determined during use, and filter shall be installed on rubber valve system. (if the above method is still ineffective, nitrogen should be used. )
It should be noted that the hand-held programmer is selected to the interface on the left side of the dispensing machine through the serial line. 6. If the joint model of the glue dispensing controller used is the same as that of the glue dispensing machine, the "dispensing" and "operation" of the glue dispensing machine can be seen according to the number of cores of the joint. Two cores for gluing and three cores for operation.
The above is a detailed introduction to the handling method of the leakage of the full-automatic sealing machine by the two-component sealing machine. For more information, please click http://emikasarl.com