How to prevent the plug of the needle of the dispensing machine?

How to prevent the plug of the needle of the dispensing machine?

In the dispensing operation of the automatic dispensing machine, the plastic dispensing needle will be processed because of the characteristics of glue and dispensing. Process and other reasons appear blockage. For example, the use of glue consistency, it is not easy to solidified, it is not easy to occur needle blockage phenomenon; The viscosity is high and the needle quickly plugs up. How to prevent plastic dispensing needle blockage phenomenon, to avoid the production of automatic dispensing machine to bring low efficiency.

Junze Technology summarizes the following points:

1. Increase the temperature to prevent needle clogging;

For example, hot melt glue uses plastic dispensing needle. As long as the glue is heated, it can melt, so as long as the heater is heated to a certain temperature, there will be no needle blockage.

2. Keep the consistency of the glue can prevent the needle plug;

Like the use of fast drying glue to process glue products, fast drying glue is fast curing at room temperature, if in the dispensing process, the dispensing is interrupted, it is easy to plug the needle, so the consistency of the dispensing should be maintained.

3. When no glue is used, the glue should be taken down to prevent the plastic dispensing needle from being blocked;

For example, AB glue, its curing speed is relatively slow, not so fast clogging phenomenon, but if you do not work for a long time, or clogging phenomenon will occur, so this time you need to take off the mixing mouth, and then save the glue, so as not to plug the whole glue needle mouth.

4. Use the needle of nanometer and rice coating dispensing machine;

Junze technology company launched the dispensing machine coating needle is made of imported plastic, high precision, wear resistance, long service cycle, plastic dispensing needle internal cone design can prevent material blocking and hardening in the step part, maintain the high fluidity of the material.

The coating needle of the dispensing machine uses nano. Rice coating technology, only 2um thick, polishing the front end of the needle nozzle, effectively inhibit the glue crawling, glue hanging phenomenon at the front end of the needle nozzle, to ensure the stability of the glue. Anti - adhesive, increase the yield of high - point glue. After 1000 hours cleaning agent immersion test, coating does not fall off, high corrosion resistance. After more than 180 days of repeated needle testing, until the needle tip loss, coating does not fall off, long wear resistance. Coating cycle is long, can be used until the tip wear. However, the coating of Teflon will fall off after only 20 hours of cleaning.

The glue used is different, the solution will be different, so it is necessary to take measures according to the actual situation, in order to prevent the blockage of plastic dispensing needle.