How To Deal With Unstable Or Wrong Glue Output From The Dispenser?

Methods to solve the problem of unstable glue output and failure of the dispenser, tips and regular operation methods for controlling the amount of glue in the dispenser, factors affecting the amount of glue controlled by the dispenser, how to deal with the wrong glue in the use of the dispenser Problems, steps to adjust the glue output of the dispenser and methods to improve the accuracy.
What is the reason for the unstable glue output of the glue dispenser? While the glue dispenser brings convenience and high efficiency to everyone, various problems will inevitably occur. If it is not resolved in time, it will affect work efficiency. Most of the air pressure is unstable, the glue is unstable, and the glue output is unstable. Unstable air pressure will lead to unstable dispensing accuracy, wrong dots and missing dots. At this time, it can be equipped with a voltage stabilizer or control the pressure of the glue valve to stabilize the amount of glue, and check the glue time. The longer the glue out time, the more stable the glue out. Unstable glue: This is reflected in the difficulty in spitting out the glue, weak fluidity, and wire drawing. This problem is generally caused by the use of high-viscosity glue. Measures can be taken to delay closing the glue: as the name suggests, after the glue head is closed, there is still glue between the glue head outlet and the glue valve that has not been completed. Delay for a while, wait for the glue to flow, and then follow up.
The lifting height refers to the empty movement to the starting point of the next track after the dispensing of one track is completed. In this space, raise the rubber head a little at the end point to ensure that the rubber head is safe and does not hit the needle, and then move to the starting point of the next track. Unstable glue output: mainly caused by unstable pressure cylinder or air pressure storing fluid. The longer the glue out time, the more stable the glue out. Formal operation skills: The problem existing in the operation of the automatic dispensing machine is the glue output effect. The quality of dispensing products is directly related to the control of glue output. In addition to setting parameters, the maintenance of the automatic dispensing machine also has an inevitable connection.
There are several reasons for the poor control of the glue output of the automatic dispenser. One is that the air pressure in the trachea is insufficient, and the effect of controlling the amount of glue is not obvious. The second is that the amount of leakage and glue output is too small. The third is that the second use of the dispensing needle causes the clogging of the dispensing needle. The air pressure of automatic dispensing should be controlled within an appropriate range, and no overpressure or low air pressure should occur. If the air pressure is not within the required range, it is easy to cause poor glue output. The main reason is that the pressure tank of the dispenser is unstable, resulting in insufficient air pressure.
The main reason for dripping when dispensing glue is that the concentration of glue is not enough, which causes the glue to flow down the needle when dispensing. As long as the vacuum suction function is added, a certain pressure difference between the inside of the dispensing valve and the external atmospheric pressure can be used to close the dispensing valve and realize the control of the glue output. In order to improve the glue output control, the glue dispenser needs to be maintained. If you need to use the automatic dispensing machine to complete special arc dispensing, in addition to controlling the glue output, you also need to complete the arc path programming through the dispensing controller to improve the dispensing quality. Long-term dispensing will affect the repeatability of the arc path, so the maintenance and adjustment of the automatic dispensing machine can improve the quality of arc dispensing.
Three factors affecting the volume control of the dispensing machine: Many places in the electronics manufacturing industry require professional equipment for dispensing and sealing. When dispensing, the distance between the dispensing needle and the circuit board and the inside diameter of the needle are the most important parameters. If the distance between the needle and the substrate is not correct, the operator will never get the correct dispensing results. When other parameters remain unchanged, the greater the distance between the dispensing needle and the circuit board, the smaller the dot diameter and the higher the dot height; the smaller the distance between the dispensing needle and the circuit board, the larger the dot diameter and the lower the dot height.