Kinematic characteristics of cam-elliptical gear combined packaged vegetable labeling mechanism
Keywords:
agricultural engineering?farm machine?farm produce processingAbstract
To address the challenges in labeling long labels on curved surface vegetables, such as wrinkles and label detachment, a cam-elliptical gear (C&E) labeling mechanism that realizes an improved hypocycloid trajectory is proposed. Firstly, the influence of different parameters on the hypocycloid trajectory is studied, and the tricuspid hypocycloid is selected as the labeling trajectory. Secondly, the trajectory and kinematic equations of the C&E labeling mechanism with a tricuspid hypocycloid trajectory are established. Next, the influence of various parameters on the trajectory and kinematics of the C&E labeling mechanism is examined. A set of optimal parameters is obtained through a comparative study, and a 3D model of the C&E labeling mechanism is established and simulated. Finally, a prototype of the C&E labeling mechanism was built and experimented with. The experiment showed that the normal labeling completion rate is 94%, and the prototype’s efficiency is 56.3 pcs/min. The research in this paper provides a theoretical basis for the design and optimization of a vegetable long-label curved-surface labeling mechanism.
Keywords: hypocycloid, cam-elliptical gear combined mechanism, tricuspid hypocycloid trajectory, kinematics
DOI: 10.25165/j.ijabe.20261903.9152
Citation: Zhang L, Zhou H, Wu C Y, Chen J N, Zhang X W. Kinematic characteristics of cam-elliptical gear combined packaged vegetable labeling mechanism. Int J Agric & Biol Eng, 2026; 19(3): 172–179.
References
[1] Chen K, Yuan Y, Zhao B, Zhou L, Niu K, Jin X, et al. Digital twins and data-driven in plant factory: An online monitoring method for vibration evaluation and transplanting quality analysis. Agriculture, 2023; 13(6): 1165.
[2] Zhang Y, Kacira M. Analysis of climate uniformity in indoor plant factory system with computational fluid dynamics (CFD). Biosyst. Eng., 2022; 220: 73–86.
[3] Jin X, Tang L M, Li R, Zhao B, Ji T, Ma Y, et al. Edge recognition and reduced transplantation loss of leafy vegetable seedlings with Intel RealsSense D415 depth camera. Comput. Electron. Agric., 2022; 198: 107030.
[4] Jin X, Tang L M, Li R, Ji J, Liu J. Selective transplantation method of leafy vegetable seedlings based on ResNet 18 network. Front. Plant Sci., 2022; 13: 893357.
[5] Sirkett D M, Hicks B J, Berry C, Mullineux G, Medlandal A. Finite element simulation of folding carton erection failure. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2007; 221(7): 753–767. DOI: 10.1243/0954406JMES502
[6] Sirkett D M, Hicks B J, Berry C, Mullineux G, Medlandal A. Simulating the behaviour of folded cartons during complex packing operations. Proc. Inst. Mech. Eng. Part C-J. Eng. Mech. Eng. Sci., 2006; 220(12): 1797–1811.
[7] Tong J H,Tang Q Q, Wu C Y, Lou H F, Cheng P L, Li X. Elliptical-circular planetary gear train box-taking mechanism design and trajectory analysis for automatic cartoning mechanisms. Chin. J. Mech. Eng., 2018; 54(11): 172. (In Chinese)
[8] Du X Q, Han X T, Shen T F, Li S T, He L Y. Design and experiment of two-degree-of-freedom canopy shaking equipment based on 5R parallel mechanism. Transactions of the CSAM, 2023; 54(4): 96–106. (in Chinese)
[9] Hsu M H, Tsai Z Y, Hsieh L C, Liu J Y. On the design of three links robot for drawing epicycloid and hypocycloid curves. Advanced Energy Systems, Advanced Materials, Aerospace, Automation and Robotics, Noise Control and Acoustics, and Systems Engineering, 2006; pp.783-789. DOI: 10.1115/ESDA2006-95546.
[10] Robison A J, Vacca A. Performance comparison of epitrochoidal, hypotrochoidal, and cycloidal gerotor gear profiles. Mech. Mach. Theory, 2021; 158: 104228.
[11] Lin C, Hu Y, Wei Y, Cai Z. Characteristics analysis of supporting and locking mechanism based on the non-circular gear compound transmission. J. Mech. Sci. Technol., 2020; 34(6): 2561–2571.
[12] Dion-Gauvin P, Gosselin C. Dynamic point-to-point trajectory planning of a three-DOF cable-suspended mechanism using the hypocycloid curve. IEEE-ASME Trans. Mechatron, 2018; 23(4): 1964–1972.
[13] Wang B, Geng Y, Chu J. Generation and application of hypocycloid and astroid. Journal of Physics: Conference Series, 2019; 1345(3): 032085.
[14] Bair B W. Computer aided design of elliptical gears with circular-arc teeth. Mech. Mach. Theory, 2004; 39(2): 153–168.
[15] Li G, Zhu W. Design and power loss evaluation of a noncircular gear pair for an infinitely variable transmission. Mech. Mach. Theory, 2021; 156: 104137.
[16] Pazarkaya İ, Yazar M, Özdemir A. Computational fluid dynamics analysis of flowmeters with elliptical gear pairs and evaluation of calculated flow rate by Taguchi method. Flow Meas. Instrum, 2023; 94: 102476.
[17] Podgornyj Y, Skeeba V, Kirillov A, Martyushev N, Borisov M. The synthesis of motion laws for cam mechanisms with additional movement of the follower. IOP Conference Series: Earth and Environmental Science, 2019; 378: 012025.
[18] Sharma A, Khar S. Design and development of a vegetable plug seedling transplanting mechanism for a semi-automatic transplanter. Sci. Hortic., 2024; 326: 112773. DOI: 10.1016/j.scienta.2023.112773
[19] Zhao H, Chen J, Xu G. Design methodology and characteristics analysis of high-order multi-segment deformed eccentric non-circular gear. Facta Universitatis, Series: Mechanical Engineering, 2024; 22(2): 217–234.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2026 International Journal of Agricultural and Biological Engineering

This work is licensed under a Creative Commons Attribution 4.0 International License.
IJABE is an international peer reviewed, open access journal, adopting Creative Commons Copyright Notices as follows.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).