Authors

Abstract

To address the challenges of low automation, insufficient precision in seed-powder-liquid ratio control, and suboptimal coating quality in current domestic small-sized forage grass seed pelletization coating equipment, this study designed and developed a fully automated pelletization coating system. The system employs a microcontroller unit (MCU) as the core controller, integrates an ATFC101 serial touchscreen for human-machine interaction, and combines programming and electronic control technologies to achieve precise regulation of material and liquid supply, enabling fully automated and quantized coating operations. The hardware of the feeding system adopts a bidirectional thyristor (Triac) circuit, while the software implements a dual-mode control strategy to ensure high precision and stable material delivery. Experimental trials using Caragana seeds and pelletization powder demonstrated that the integrated electro-control system achieved full automation, with seed dispensing deviation controlled within 1.2 g and powder deviation within 0.32 g, significantly improving dosing accuracy. This research provides critical theoretical and technical insights for optimizing automated pelletization coating equipment for small-sized forage grass seeds.

Abstract in Chinese

针对当前国内小粒牧草种子丸化包衣设备存在的自动化程度低、种粉液比例控制精度不足及包衣质量欠佳等问题，本研究设计并开发了一种小粒牧草种子全自动丸化包衣设备，系统以单片机为核心控制器，采用ATFC101串口屏作为人机交互界面，结合编程与电控技术，实现了供料与供液量的精确调控，进而达成全自动精量化包衣操作。供料系统硬件部分采用双向晶闸管电路，软件部分则基于双模态控制策略，确保了供料的高精度与稳定性。以柠条种子及丸粒化粉料为试验对象，研究结果表明，该电控系统与丸化包衣设备的集成实现了全自动操作，其中落种偏差控制在1.2g以内，落粉偏差控制在0.32g以内，显著提升了精确落料性能。本研究为小粒牧草种子全自动丸化包衣设备的设计与优化提供了重要的理论依据与技术参考。