Application of Pneumatic Diaphragm Pump on Plastic Printing Machinery

Since the 1990s, China's packaging and printing machinery industry has made rapid progress, and has greatly improved its variety, quantity, technology, and quality. In terms of manufacturing technology, not only has the accuracy been improved, but also the application of electromechanical integration technology and microcomputer control has been strengthened, and the supporting of the special pump valve electronic components and the motor electronic control components in the basic support has been strengthened. The pneumatic diaphragm pump is the ink circulating device. Essential accessories. The United States, White, Germany, Italy and the printing machinery are equipped with this pneumatic ink suction device. China's plastic printing machinery has been equipped with pneumatic diaphragm pumps since the mid-nineties to replace electric pumps that are prone to sparking during operation and that easily cause ink bubbles.
Pneumatic diaphragm pump has the characteristics of safety, energy saving, high efficiency, and durability. Because of the use of compressed air as power, it will not generate sparks, static electricity or electromagnetic interference in the work process, and is suitable for use in flammable and explosive environments. The flow of the medium can be adjusted steplessly by the needle valve on the pump, depending on the needs of the press. After the pump starts to move, the ink continuously reciprocates and circulates to prevent the ink in the ink tank from being crusted to improve the printing quality. The pump body and the filter are made of alloy casting. The pump parts are all made of the advantages of corrosion resistant materials. Special diaphragms and corrosion resistant ink tubes can be resistant to ester, ketone, benzene, alcohol and other solvents.
The principle of pneumatic diaphragm pump: under the action of compressed air, the auxiliary mechanism of the air cavity in the pump generates reciprocating motion to drive the diaphragm agitating, thereby compressing and pumping the medium (such as ink, glue, solvent, etc.) in the pump cavity. It serves the purpose of conveying media.
Pneumatic diaphragm pumps have been supporting plastic printing machinery factories since 1995, and have won the National Science and Technology Commission Spark Program Outstanding Project Award and the Wuhan City Outstanding Product Award in 1999 and 2000, and are recognized as the famous brand products in the domestic packaging printing industry. Now with many domestic packaging machinery manufacturers supporting products throughout the country and exported to South Korea, Egypt, Malaysia and other countries in the domestic and international markets have won a good reputation.
Such as "Yangtze River" brand pneumatic diaphragm pumps are:
(1) CJ601 pneumatic diaphragm pump: common type.
(2) CJ601S pneumatic one-way diaphragm pump: with manual re-inking device, more convenient when changing colors and cleaning.
(3) CJ602 pneumatic two-way diaphragm pump: two-way liquid supply, the flow rate is two times that of one-way diaphragm pump, the performance is more stable, and is more suitable for adjusting high-grade plastic printing machinery. (Xie Feng, author of Wuhan Jinchang Electrical and Mechanical Equipment Co., Ltd.) (From "China Packaging Industry" 2001 12)