目的 为解决GDX500软盒包装机商标纸输送、加速过程中稳定性差，易发生歪斜、阻塞等问题，设计一款利用正负压输送商标纸的输送装置。方法 使用负压吸风带输送机构取代原有的压轮输送机构，设计射流加速机构实现商标纸的加速功能，并完成传动系统的设计;利用原安装支座设计机械控制阀实现气路的自动通断，简化结构，提高设备的运行稳定性。结果 以玉溪卷烟厂生产的“玉溪(软)”牌卷烟为对象进行测试，结果表明:应用商标纸输送装置后，机组运行效率提高6.28%，商标纸输送或烟包输送阻塞次数下降79.62%，不合格品数由34.68包/h降至3.75包/h。结论 该装置显著提高了GDX500软盒包装机商标纸输送的稳定性，为提升机组效率和产品质量提供技术支持。

To address the issues of poor stability, skewing and blockage during the transportation and accelerated conveying of the trademark paper by the GDX500 soft box packaging machine, the work aims to design a conveying device that uses positive and negative pressure to transport the trademark paper. The original pressure wheel conveying mechanism was replaced with a negative pressure suction belt conveying mechanism and a jet acceleration mechanism was designed to achieve the accelerated conveying function of the trademark paper, and the design of the transmission system was completed. A mechanical control valve was designed with the original installation support to automatically control the on-off of the airway, simplifying the structure and improving the operational stability of the device. When the "Yuxi (Soft)" brand cigarettes produced by Yuxi Cigarette Factory were used as the test object, the application of the trademark paper conveying device increased the operating efficiency of the machine by 6.28%, reduced the number of trademark paper or cigarette package conveying blockages by 79.62%, and decreased the defect rate from 34.68 packs/h to 3.75 packs/h. The device significantly improves the conveying stability of trademark paper in the GDX500 soft box packaging machine, providing technical support for enhancing the machine efficiency and product quality.