HIGH PRECISION DIAPHRAGM TYPE PULSELESS METERING PUMP USING FACE CAM

摘要

A high-precision diaphragm type pulseless metering pump using a flat cam is disclosed. A high-precision diaphragm type non-pulsating metering pump using a flat cam includes a drive motor installed in the pump body, a flat cam that is connected to the drive shaft of the drive motor and rotates, and a drive groove is formed along the outer circumference of the connection part to which the drive shaft is connected, and A first roller bearing in rotational contact with the inner wall surface of the groove is installed at one end, and a first slider slidably installed on the pump body, and a second roller bearing in rotational contact with the inner wall surface of the driving groove are installed at one end. A second slider installed to be slidably installed on and a first operating space formed between the first suction passage and the first discharge passage, and pressurized and deformed by the other end of the first slider to provide suction and discharge of fluid. A first pump head including a first backup diaphragm installed at a position between the diaphragm and the inner wall surface of the first operating space and the first diaphragm and connected to the other end of the first slider, a second suction passage and a second discharge passage It is installed in the second operating space formed between the second diaphragm and is installed in a position between the second diaphragm and the inner wall surface of the second operating space and the second diaphragm providing suction and discharge of fluid by being pressurized and deformed by the other end of the second slider. It includes a second pump head including a second backup diaphragm connected to the other end of the second slider.