Points for attention of drip leakage of glue valve in automatic dispensing machine:
The leakage of rubber valve in automatic dispensing machine often occurs at the moment when the rubber valve is closed. 95% of this situation is due to the small caliber of the needle used.
General application controls the length of mixing pipe of automatic dispensing machine and distinguishes the control pressure bar to determine the mixing level of glue and control the glue on and off. The mixing mode of the mixing pipe is static mixing, consisting of a series of left and right rotating blades arranged vertically in the casing. When A and B glue pass through the mixing pipe, the cutting and coincidence stop and become the average mixing fluid. The outlet part of the mixing pipe can be connected with a adapter to facilitate the use of needles of any caliber to ensure accurate glue output.
The needle barrel is put into the needle holder and fixed to connect the air valve. The AIR OUT port of the dispensing controller is connected to the needle barrel through the trachea, and the needle air valve is connected to the AIRIN of the dispensing controller. The `dispensing'interface of dispensing machine is connected to the signal output interface of dispensing controller through cable. Foot pedal connection: Connect the foot pedal to the `running'interface of dispensing machine to control the operation of dispensing machine. Z-Axis Cable Connection: Connect the Z-Axis cable plug with the Z-Axis of dispensing machine.
Too small needles can affect the activity of the liquid to form back pressure, resulting in a drip phenomenon shortly after the closure of the glue valve. Too small needles can also affect the action of exhaust bubbles when rubber valves are used at the beginning. Only changing larger needles can deal with this kind of performance.
The conical oblique needle has the least back pressure and the smoothest liquid movement.
液体内空气在胶阀关毕后会发生滴漏景象, 最好是事后扫除液体内空气, 或改用不容易含气泡的胶.或先将胶离心脱泡后在运用.霎时胶( 快干胶 ) 在胶阀接头及管路上梗塞此种情形次要因过多的湿气或反复运用过的霎时胶. 应确保运用新颖的霎时胶. 将管路以未含湿气的Aceton丙酮彻底清洗过. 运用的空气应确定完枯燥且于厂内空压与胶阀零碎间加装过滤器. ( 以上办法如依然有效, 则应运用氮气. )
The air in the liquid will drip and leak after the rubber valve closes. It is better to sweep the air in the liquid afterwards, or change to a gel that is not easy to contain bubbles. Or to centrifuge the gel to defoam and then use it. The case of instant glue (quick-drying glue) blocking in the joint of the rubber valve and the pipeline is secondary to excessive moisture or repeated use of instant glue. It is necessary to ensure the use of novel instant glue. The pipeline will be free of moisture. Ceton acetone has been thoroughly cleaned. The air used should be determined to be dull and filters should be installed between the air pressure in the plant and the rubber valve fragments. (If the above methods are still effective, nitrogen should be used.)
It is important to note that the hand-held programmer is selected to the left side of the dispenser through the serial port line. 6. If the dispensing controller used is contrary to the connector type of dispensing machine, we can see the connection interfaces of dispensing machine such as dispensing and running, two-core dispensing and three-core operation according to the different number of connectors.
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