The rotary pump consists of a stationary pump body and a rotating rotor. The side of the rotor in contact with the liquid inside the pump body directly applies energy to the liquid in the form of static pressure. By the squeezing action of the rotating rotor, the liquid is discharged. Meanwhile, a space is left on the other side, creating a low - pressure area, which allows the liquid to be continuously sucked in. During the paint filling process, the rotary pump extracts paint from the paint storage tank and delivers a fixed amount of paint to two filling heads through a precise control system, enabling simultaneous filling of two packaging containers.
High - precision filling: Using a rotary pump as the metering and conveying component, it can precisely control the filling volume of paint. The filling accuracy is high, and the error can be controlled within a small range, for example, ±0.1% - ±0.2%.
Suitable for various paints: The working principle of the rotary pump makes it suitable for paints with different viscosities, including low - viscosity water - based paints, high - viscosity oil - based paints, and thick - paste paints.
Efficient double - head filling: The two filling heads can work simultaneously. Compared with single - head filling machines, the production efficiency is nearly doubled, meeting the production requirements of large - scale paint filling.
Hygienic and environmentally friendly: The parts in contact with paint are usually made of stainless steel, such as 304 or 316L stainless steel. The surface is polished, making it easy to clean, meeting hygienic and environmental requirements. It can also prevent paint from corroding the equipment.
High degree of automation: Equipped with a PLC control system and a touch - screen human - machine interface, it can realize functions such as parameter setting, production data monitoring, and fault alarm. It can automatically complete a series of operations, including loading empty barrels, positioning, filling, weighing feedback, and unloading finished products, reducing manual intervention, labor intensity, and human errors.
Anti - dripping design: The filling heads are generally equipped with anti - dripping valves or suction - back functions. After filling, they can effectively prevent paint from dripping, avoiding pollution to the equipment and the working environment.
Strong compatibility: It can be compatible with packaging containers of different capacities and specifications. By replacing filling head accessories or adjusting the mechanical structure, it can quickly switch between different packaging specifications, such as 1L, 5L, 20L paint barrels.
Daily maintenance: After each use, the filling heads, rotary pump, and pipelines in contact with paint should be cleaned in time to avoid paint residue from solidifying and affecting the next use. At the same time, check all parts of the equipment, such as whether the pipe connections are loose and whether the sensors are working properly.
Regular maintenance: Regularly inspect and maintain the rotary pump, including checking the wear of the rotor and replacing seals. Conduct a comprehensive maintenance of the equipment every quarter or half - year, replace the lubricating oil, and calibrate metering devices such as weighing sensors to ensure the stable performance and accuracy of the equipment.
Fault troubleshooting: If the filling volume is inaccurate, it may be due to wear of the rotary pump, aging of seals, or a malfunction in the metering system, which requires timely inspection and repair. If there is a dripping phenomenon, in addition to checking the seals of the filling heads, the pipelines also need to be checked for leaks.
