The vigorous development of circuit boards, mobile phone shells, headphones, batteries, electrical appliances, light-emitting diodes and other electronic industries has driven the rapid development of related industries, especially automation equipment. Coating machine is one of them. The demand for automatic coating machine in photoelectric industry is increasing rapidly. In addition to market demand, it is also closely related to support in the economic environment. The automatic coating machine replaces the slow old manual dispensing and coating. At present, the coating machine has been widely used in circuit boards, mobile phone shells, headphones, batteries, electrical appliances, led and other fields. Coating machine plays a very important role in these industries. Whether the use and maintenance of the coating machine can operate stably and reliably has become the focus of equipment maintenance personnel, and the cleaning of the coating machine has also attracted the attention of users. There are three main cleaning methods for the coating machine:
1、 Traditional cleaning methods. Clean the mixing head with volatile solvents such as DMF. This method cleans thoroughly and has low cost, but the biggest problem is environmental pollution. Because it is a chemical, volatile, toxic and non recyclable, which violates the green environmental protection trend advocated now, its use is limited, and it is gradually not accepted by the market and gradually eliminated.
2、 High pressure water cleaning. Although this method is non-toxic, low-cost and simple to operate, there is a widespread problem of incomplete cleaning in the industry; At the same time, high-pressure water cleaning will waste water resources and produce a large amount of industrial wastewater, which is not a good cleaning method.
3、 Use recyclable environment-friendly solvents for cleaning. From a social point of view, this method is popular, environmentally friendly, recyclable and has good cleaning effect. However, as an enterprise, it is often difficult for enterprises to accept the high cost and the need for independent systems and equipment. At present, there is no environmental friendly and low-cost cleaning method in the coating machine market. Therefore, those professional cleaning companies should strengthen research and development, actively innovate, strive to develop cheap and environmental friendly cleaning products as soon as possible, and promote the development of the coating machine industry.
Specific cleaning methods for coating machine parts:
1. Dispensing needle: the bending or wear of the needle and stopper may have an important impact on the dispensing quality. If the temperature is high or it is not cleaned for a long time, the patch adhesive may also solidify or semi solidify on the inner surface of the needle, causing blockage. Check the dispensing needle regularly, and clean it up in time if any pollution is found. Soaking the needle in a compatible solvent is a common method, but it is too inefficient to remove all uncured materials only by soaking. The glue can be blown out of the inner hole of the needle with high-pressure spray of compatible solvent, and then the inner hole can be blown out with dry compressed air to dry the needle.
2. Metal formwork: in order to avoid detergent eroding the adhesive of formwork and wire mesh, use the pre washing process, use stronger detergent, operate manually, avoid the contact between detergent and adhesive, and then clean the formwork with ordinary detergent.
3. Plastic formwork: electrostatic discharge may occur when cleaning plastic formwork. Therefore, special anti-static cleaners should be used to avoid this phenomenon. At the same time, do not use rags for manual cleaning, because the plastic is easy to be scratched, which may lead to printing quality problems for a long time. The cleaning of coating machine is an important work of daily maintenance of coating machine. Users attach great importance to it, but the cleaning method still needs to be improved
For more details, please consult Gaoxiang electronics