Application No./Patent No.: 2017107340703 Application date: August 24th, 2017.
Inventor/Designer: Cao Yu, Xu Wenjun, Zhou Hongming, Zhu Dehua, Zhang Jian, Liu Wenwen, Sun Bingtao.
The invention provides a high-speed and high-precision dynamic weighing method suitable for powder packaging, which comprises the following steps: starting a powder packaging dynamic weighing filling production line; A dynamic weighing device is adopted to weigh the current mass mo of the supply hopper filled with powder; According to the periodic condition, if yes, the terminal environment simulation test of the powder is carried out to obtain the quality deviation compensation value MC corresponding to the environment; Otherwise, the normal filling process is carried out, the automatic control blanking valve is opened, the powder enters the powder conveying unit from the supply hopper, the current quality M1 of the supply hopper filled with powder is read and detected in real time, and the automatic control blanking valve is closed when M0-M1=Delta_M+Mc; Then, the powder packaging bag filled with powder is sent to the subsequent process unit. According to the invention, the problem that the on-site weighing of packaging is inconsistent with the on-site weighing of powder terminal is solved, the packaging benefit of the packaging production line can be greatly improved, and the cost is reduced.
