Filling method and system

Abstract

The invention discloses a filling method, comprising the following steps: S1, weighing an empty bottle; S2, filling the empty bottle for the first time according to the set filling amount; S3, weighing the bottle after the first filling; S4, filling the bottle for the second time after the first filling; and S5, weighing the bottle after the second filling. The invention further discloses a filling system, comprising a first weighing station, a first filling station, a second filling station and a conveying device, wherein the first filling station is provided with a first filling device, a second weighing station is arranged between the first filling station and the second filling station, the second filling station is provided with a second filling device and a third weighing station, and the diameter of a filling pipeline of the first filling device is larger than that of the filling pipeline of the second filling device. The filling method and system have the advantages of facilitating both the production efficiency and the filling precision and avoiding damage to the equipment.

Description

technical field [0001] The invention relates to a food and medicine packaging method and equipment, in particular to a filling method and a filling system. Background technique [0002] The filling system is the core part of the whole set of sub-packaging equipment, and the filling accuracy is the most important performance index to measure the filling system. At present, two sets of weighing sensors are generally used to measure the pre-filling drug bottles (ie tare) respectively. Weigh the filled medicine bottle (ie gross weight) to obtain the filling weight, but this method does not guarantee that each bottle can meet the target filling weight, but can only select the qualified filling bottle The filling accuracy almost still depends on the accuracy of the filling system itself, that is, given a fixed filling volume, the stroke of the pump is obtained through conversion, and the final filling volume is completely determined by the filling pump and the supporting pipeline ...

AI Technical Summary

Problems solved by technology

However, the same set of equipment is used for the two fillings of the above method (that is, the same pump, filling needle and weighing sensor are used for rough filling and fine filling), which leads to a long filling cycle, greatly reduces the filling efficiency, and cannot meet the requirements of the medicine. The high-volume and high-speed production requirements of the factory, especially for large-capacity bottles such as large infusion bottles, this filling method is not advisable, and the filling speed is fast during the filling process, especially during rough filling, so the impact on the bottle body If there is a load cell under the bottle at this time, it will easily cause damage to the load cell

[0004] The existing technical solutions cannot ensure the filling efficiency while ensuring the filling accuracy, and usually use a larger filling needle to ensure the filling efficiency, which cannot achieve a few milligrams or more than ten milligrams of fluid replacement, that is, it is difficult to achieve a higher High filling accuracy

Images