| 摘要: |
| 目的 通过改变山核桃的加工工序，优化系统结构和控制，保证果仁的完整性，降低损伤率。方法 系统采用PLC为控制核心元件，以及智能化控制系统软件设计，实现山核桃的初次破壳、筛选、风选、二次高速碰撞破壳，以及再次筛选、风选、色选和包装等工序的全程自动控制。通过采用变速给料和合适的算法，来提高包装的精度。结果 损伤率实验表明，山核桃整仁中果仁表面光亮、无明显伤痕、团仁较多，果仁平均损伤率为6.25%，低果仁损伤率低，系统的破壳质量得到了验证。结论 损伤率实验和包装精度实验结果表明，系统达到了设计要求。目前，该系统已在生产上得到广泛应用。 |
| 关键词: 山核桃 损伤率 PLC 生产线 包装机 包装精度 |
| DOI：10.19554/j.cnki.1001-3563.2018.21.004 |
| 分类号:TB486；TP278 |
| 基金项目:国家自然科学基金面上项目（51475002） |
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| Design of Control System of Production Line of Nut Shell Cracking and Packaging |
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CAO Cheng-mao, SUN Yan, WU Min, LI Ze-ze
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Anhui Agricultural University, Hefei 230036, China
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| Abstract: |
| The work aims to guarantee the integrity of pecan kernel and reduce the damage rate by changing the processing procedure of pecan and optimizing the system structure and control. With PLC as the control core component and based on the intelligent control system software design, the system realized the automatic control of the whole process of primary pecan shell cracking, screening, winnowing, secondary high-speed impact shell cracking, re-screening, winnowing, color selection and packaging. Through the variable-speed feeding and the appropriate algorithm, the packaging accuracy was improved. The damage rate test indicated that, in the perfect pecan kernels, the kernel surface was bright and free from obvious scars, and most of them were round. The average damage rate of the kernel was 6.25%. The kernel damage rate was low. The shell cracking quality of the system was verified. The damage rate test and packaging accuracy experiment results show that, the system meets the design requirements. At present, the system has been widely applied in production. |
| Key words: pecan damage rate PLC production line packaging machine packaging precision |
