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How to solve the valve problem of automatic dispenser?

Release time: 09:48:00, August 21, 2019 source: http://1xuewen.com
 How to solve the valve problem of automatic dispenser?

1、 The rubber nozzle is blocked

Cause: automatic Dispenser The pinhole is not completely cleaned, and impurities are mixed in the patch adhesive, and there is blockage
 Maybe there is not enough glue in the nozzle, which leads to the phenomenon of no glue hole.

Treatment: change the clean needle, change the good quality of the patch adhesive, the sticker trademark should not be done
 wrong.

2、 Leakage of rubber valve

reason: Dispenser The diameter of the needle used is too small, too small a needle will affect the use of the rubber valve
 When the exhaust bubble action, affect the flow of liquid, forming back pressure, resulting in the rubber valve closed after not
 The phenomenon of drip and leakage is formed for a long time.

Treatment: as long as the larger needle can be replaced to deal with this problem. Air in other liquids
 After the rubber valve is closed, it is better to remove the air in the liquid in advance, or use it instead
 It is not easy to contain bubbles of glue, or the glue should be centrifuged before use.

3、 The flow is too slow

Cause: the pipeline of dispenser is too long or too narrow, the air pressure at the nozzle is insufficient, and the dispensing flow rate is too slow.

Treatment method: change the dispensing machine pipeline from 1 / 4 "to 3 / 8". If the pipeline is not needed, the shorter the better
  In addition, the rubber mouth and air pressure should be improved to speed up the flow.

4、 There are bubbles in the fluid

Reason: dispenser due to excessive fluid pressure and too short valve opening time, it is possible
 Air is introduced into the liquid to form bubbles.

Treatment method: reduce the fluid pressure and use a conical oblique needle.

5、 The glue size is not consistent

Cause: the pressure cylinder or air pressure of the dispenser storing fluid is unstable, resulting in uneven glue output,
 The size is not consistent.

Treatment method: should prevent the use of pressure between the low pressure part of the pressure gauge. Control pressure of rubber valve
 It should be at least 60 psi to ensure the stability of glue delivery. Finally, check the time of glue out, if it is less than
 15 / 1000 seconds will form the instability of glue out, the longer the glue time, the more stable the glue.