Optimization Design of Packaging Machinery Cam Pushing Mechanism Based on Virtual Prototyping

LIU Jing

doi:10.19554/j.cnki.1001-3563.2025.15.028

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Packaging Engineering ›› 2025, Vol. 46 ›› Issue (15) : 246-251. DOI: 10.19554/j.cnki.1001-3563.2025.15.028

Automatic and Intelligent Technology

Optimization Design of Packaging Machinery Cam Pushing Mechanism Based on Virtual Prototyping

LIU Jing

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Abstract

The work aims to optimize the design of cam contour curves in the pushing mechanism of packaging machinery, improve the operation stability of the mechanism and optimize the working performance of the pushing mechanism. With the linear cam pushing mechanism of packaging machinery as the object, a modified curve of the harmonic and uniform speed combined velocity motion of the pushing mechanism was constructed. The dynamic analysis and simulation software ADAMS was used to establish a virtual prototype of the mechanism for inverse dynamics solution, enabling the optimization design and simulation analysis of the cam mechanism. Before velocity modification, there were sudden velocity changes and also sharp or concave points on the cam contour. Contact forces between the cam and the driven roller exhibited impacts and vibrations. After optimization, the actuator's velocity changed smoothly; there were no sharp or concave points on the contour surface; and the contact force between the cam and the follower changed smoothly without impacts or fluctuations. In conclusion, the optimized cam contour curve obtained using the harmonic and uniform speed combined modified velocity motion law exhibits a smoother surface. The actuator moves more stably compared with uniform motion laws.

Key words

packaging machinery / cam mechanism / virtual prototyping / optimization design

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LIU Jing. Optimization Design of Packaging Machinery Cam Pushing Mechanism Based on Virtual Prototyping[J]. Packaging Engineering. 2025, 46(15): 246-251 https://doi.org/10.19554/j.cnki.1001-3563.2025.15.028

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