1. The glue is continuously dry-burned and carbonized for a long time.
What is the carbonization of the glue? To put it more straightforwardly, the glue is repeatedly heated inside the glue machine, but it is not all used up each time. As a result, the glue is heated repeatedly, and after the glue inside is burned dry, it undergoes carbonization, thus deteriorating and blocking the nozzle. This situation often occurs during the debugging stage. Many users are reluctant to discard the glue used for testing the machine and keep it in the glue machine for production, which leads to the carbonization of the glue.
2. The glue itself contains impurities.
This problem is also very common. In order to save the cost of using glue, users use some cheap and low-quality hot melt adhesives. This will not only lead to the blockage of the nozzle but will actually also cause many other problems, such as blocking the filter screen and affecting the bonding effect, and so on. Just as the saying goes, a good horse deserves a good saddle, and it's the same principle.
3. Foreign objects such as paper scraps and dust in the on-site environment mix into the glue. In many users' on-site working environments, the amount of dust is relatively large. In such a situation, more attention should be paid to hygiene when adding glue to avoid obvious foreign objects mixing into the hot melt adhesive particles, resulting in the blockage of the nozzle.
The above are the reasons for the blockage of the nozzles of hot melt adhesive machines and the solutions summarized by YUPACK in the previous work process. In the following articles, YUPACK will continue to share the common sense of maintenance and upkeep of hot melt adhesive machines. Welcome to keep following us! 