UV purple light printer ventilation system

It consists of a fan, an air duct, and a wind collecting hood. What should be noted here is the choice of fan and the control of air volume and the way of exhaust.

1. The choice of fan should be determined according to the power of the UV lamp and the actual situation of the box space. Generally, two fans, wind and induced wind, have to be distributed, but some are equipped with only one induced draft fan. Insufficient fan power and insufficient exhaust air volume will cause excessive temperature in the cabinet, shorten the life of the lamp tube, or even melt, which also makes it difficult to ensure the quality of the cured product; if the fan power is too large, the air volume will be too large and the temperature in the cabinet will be too low. The UV lamp cannot work at full power, and the cured product is not easy to dry.

2. Air volume control means that the air volume of the UV curing device should be adjustable. This is because considering the large temperature difference between winter and summer, many factories do not have a constant temperature workshop, so if the UV curing device works with the same air volume in winter and summer, it will definitely affect the quality of the product. Generally, two fans are controlled by a temperature control method. When a certain temperature is reached, one fan is automatically started, and then another fan is started when a certain temperature is reached, and a live valve is provided on the exhaust and inlet to control the inlet. The volume of wind and exhaust.

3. The method of exhausting air refers to adopting the methods of upward-drafting and downward-drafting or upward-drafting and downward-drafting. But no matter what way, do not blow the wind directly on the UV lamp tube, because the consequence of this is that the UV lamp cannot work at full power due to excessive heat loss (the light changes from white to non-glaring blue), So that the ink can not be dried at all.