China's apparel industry has a market size of 1.9 trillion in 2015. It is expected that by 2017, this scale will exceed 3 trillion yuan. Huge sales of apparel generate a large number of express orders, while express packaging requires a lot of human resources, which also increases the cost of online sales. To this end, the project team has developed an automatic express packaging machine that can improve packaging efficiency and reduce sales costs. The packaging machine consists of a mechanical structure, motion and control system. The mechanical part includes integral profile frame, silo mechanism, screw push system, express single tearing mechanism, etc.; the motion system includes pneumatic and electric parts, mainly including gas path, cylinder and suction cup, step servo, etc.; control system is controlled by FX2nPLC . 1 overall design The device needs to realize intelligent automatic packaging function, including automatic feeding of multiple silos, automatic bag taking, automatic bag opening, automatic pushing, automatic heat sealing, automatic posting and other functions. Controlled by PLC programming. 2 Mechanical structure design 2.1 Feeding mechanism The feeding mechanism is composed of a silo, a moving rail, a push cylinder, and the like. The silo is fixed on the slider of the moving rail, and the rack and pinion is fixed in the middle of the rail, and the gear is rotated by the driving of the stepping motor, thereby driving the rack horizontally to move left and right to achieve the purpose of feeding. 2.2 Pushing mechanism Since the pushing mechanism requires a large stroke during the actual pushing process, the DC motor driven screw is used to push the material, and two guide rails are designed on both sides of the screw to reduce the jitter of the screw. Skewed to ensure the smooth progress of the push material. 2.3 Bag picking and bag opening mechanism Express transportation uses the air pump to drive the vacuum generator to vacuum, forming a negative pressure inside the suction cup, so that the courier bag is sucked up. In order to ensure the positioning accuracy of the courier bag during transportation and lifting, the project increases the outer suction cup to ensure express delivery. The bag is transported to the designated location. 2.4 Heat sealing mechanism The heat sealing mechanism mainly generates compressed gas by the air pump. Acting on the double-shaft double-rod cylinder, the heat-sealed plastic strip is fixed at the front end link of the cylinder. When the compressed gas enters the cylinder, it pushes the cylinder axially downward, and the heat-sealed plastic strip contacts the heat-sealed metal strip to maintain the heat after 3 s. The seal is completed. 2.5 Thermal single peeling and sticking mechanism When working, the PLC controls the stepping motor to work. The motor drives the rotating shaft through the synchronous belt drive. The thermal express single sensor detects the express delivery order, the motor stops working, then the cylinder runs downward, the express delivery slip is attached to the courier bag, and the cylinder is retracted. . 3 control system The project takes PLC as the main control system, and controls the stepper drive, relay and other devices through PLC to realize the functions of stepping motor movement, cylinder work, suction cup suction and heat sealing. 4 Conclusion The project has developed a garment express automatic packaging machine through the design of mechanical structure, motion and control system. The device can realize automatic feeding, automatic bag taking, automatic bag opening, automatic pushing, automatic heat sealing and automatic post delivery. Single-function, can be packaged in one or more pieces according to the order requirements, low cost and high efficiency. Article source address: http:// Lip Mud,Lip Rouge,Lip Paste,Lip Gloss,Lip Balm Guangzhou Shishi Daily Chemical Co.,Ltd. , https://www.gzcosmeticok.com