Aiming at the limitations of the suction cup mechanism of the circular gear planetary gear system, a suction cup mechanism for the elliptical circular gear planetary gear system is proposed on the premise of meeting the requirements of the box taking and placing process. By using computer software, the motion trajectory and characteristics of the suction cup end of this suction box mechanism are optimized and solved. The elliptical eccentricity e is equal to 0.05, ri is equal to 85.3, and r2 is equal to 49.3, which is a set of optimal structural parameters. The solution results are compared with the motion trajectory and characteristics of the suction cup end of the circular gear planetary gear system suction box mechanism.
The results show that, under the premise of unchanged box picking and box placement points, the acceleration of the trajectory formed by the ellipse at the box picking and box placement station is 14.3% slower than that of the trajectory formed by the circular gear at the box picking and box placement station. Before the box placement, the speed is 14.3% slower, and the maximum acceleration of the mechanism is reduced by 9.9%.
According to the functional requirements of the material conveying device and the requirements of different box shapes, design a box bracket with adjustable paper box length, and place the box bracket at a tilt angle of 30 ° to the horizontal.
According to the process requirements of the box picking and placing machine, the structure of the traditional planetary gear suction box mechanism is analyzed, a mathematical model of the mechanism is established, and the motion trajectory and characteristics of the suction cup end of the planetary gear suction box mechanism are solved. The optimal trajectory parameters and corresponding motion characteristics of the circular gear planetary gear suction box mechanism are determined, and the limitations of the circular gear planetary gear suction box mechanism are pointed out, Provide theoretical support for the innovative design of planetary gear suction box mechanisms.
Develop a high-speed automatic box packing machine suitable for different lengths and shapes of medical tape packaging as the research object, and conduct experiments. Perform 3D modeling and virtual simulation on the automatic packaging machine to verify the suction trajectory. 3D modeling of the entire packaging machine to further optimize the interference part structure of the entire machine; Trial production and installation of prototypes for box testing.