目的 为了提高指甲油包装生产线的效率，降低人工成本，实现机器替代人工的目标，应某指甲油生产企业的要求提出一种指甲油自动包装生产线方案，并研制出实现指甲油自动化包装生产的包装生产线。方法 通过分析某指甲油生产企业的指甲油包装生产过程，采用SolidWork软件分别建立空瓶放置、钢珠放入空瓶、指甲油注入、瓶盖放置、拧入瓶盖和成品输出等装置的三维模型，并对组成各装置的零部件进行图纸设计。利用西门子S7-200 PLC控制各机构的AC电机和气缸的协调运作，实现指甲油的自动化包装生产。结果 研制出了一种指甲油自动包装生产线，实现了指甲油的自动化包装生产，满足了企业要求。结论 该指甲油包装生产线解决了指甲油自动化包装的难题，实现了机器替代人工的目标，提高了指甲油包装生产效率。

The work aims to put forward a scheme of automatic nail polish packaging production line at the request of some nail polish production enterprise, and develop the packaging production line for the automatic packaging production of nail polish, in order to improve the efficiency of the nail polish packaging production line, reduce the labor cost and achieve the goal that machine replaces manpower. Through the analysis on the nail polish packaging production process of some nail polish production enterprise, SolidWork software was adopted to respectively establish the 3D models for the empty bottle placing device, device used to place steel ball into empty bottle, nail polish injection device, bottle cap placing device, cap screw-in device and finished product output device, etc., and design the drawings for the parts composed of each device. Siemens S7-200 PLC was used to control the coordination operation of AC motor and cylinder of each mechanism, so as to achieve the automatic packaging production of nail polish. An automatic packaging production line of nail polish was developed, which achieved the automatic packaging production of nail polish and met the enterprise requirements. Such packaging production line of nail polish has solved the difficulty of automatic packaging of nail polish, which achieves the goal that machine replaces manpower and improves the packaging production efficiency of nail polish.