Design and Analysis of a Quantitative Dispensing Machine for Small Doses of Chinese Herbal Granules
- VernacularTitle:小剂量中药颗粒定量配药机的设计与分析
- Author:
Hengyuan ZHANG
1
;
Kai SONG
;
Yu JI
;
Baotong DING
;
Yiran FENG
;
Jinshi LU
Author Information
- Publication Type:Journal Article
- Keywords: Chinese herbal granule dispensing machine; Black box method; Finite element analysis; Kinematics simulation
- From: World Science and Technology-Modernization of Traditional Chinese Medicine 2025;27(9):2523-2535
- CountryChina
- Language:Chinese
- Abstract: To address the insufficiency of domestic small-dose Chinese herbal granule dispensing equipment,this study introduces the"black box method"design concept and,on this basis,designs a lightweight,compact and highly accurate dispensing device.This device uses a two-phase four-wire brushless motor to drive the slider for displacement,thereby controlling the volume of the medicine falling into the weighing device to complete the weighing of the medicine.Finally,a two-phase hybrid stepping motor is used to drive the weighing device to transfer the medicine.This paper first elaborates in detail on the mechanical structure and weighing dispensing principle of this device.Secondly,the ANSYS finite element software is used to conduct a force analysis test on the weighing device,and it is concluded that the deformation of the weighing device during the working process is 9.98×10-5 mm,and the maximum deformation of the discharge port is 6.65×10-5 mm.Finally,the ADAMS software is used to simulate and analyze the motion process of the mechanism.The results show that,under the premise of ensuring the accuracy of weighing,there are no virtual points or interference in the motion process.On this basis,a prototype test is conducted,and the error accuracy of the dispensing machine is about 0.066 g,which is higher than the traditional dispensing accuracy.This equipment has strong adaptability and high dispensing accuracy,providing a new solution for small-dose precise quantitative equipment.
