Development of an automated weighing and filling system for explosives used in perforating charge manufacturing

To address the process automation requirements in the manufacturing of perforating charges (a type of civilian explosive), and improve the intrinsic safety level of the production, an automated system for weighing and filling explosives was designed based on the volumetric quantification method innovatively integrating electromagnetic vibration feeding compensation. Firstly, based on the decomposition of manufacturing process flow and design technical indicators, the system functional architecture and device assembly structure model were formed and derived from the substructure method. Secondly, a detailed design of each substructure within the device was carried out based on process technical indicators. Finally, a prototype was manufactured, and experiments were conducted to verify the measurement accuracy and efficiency. The results indicate that the application of this system in operation is impacted by the bulk density of different batches of explosives, affecting the weighing accuracy and stability. However, upon overall evaluation, the designed system demonstrates high comprehensive measurement accuracy and high stability, meeting the manufacturing requirements for perforating charges. Additionally, it significantly improves operational efficiency, more than 1.6 times the efficiency of traditional manual operation. Furthermore, with appropriate modifications, it still has significant potential for efficiency improvement.