Analysis and calculation of the cam curve of the manipulator in the bottle blowing machine
Bottle - filling and capping "three" liquid packaging machine packing machine is a new generation, represents the development trend of liquid filling machine, is a new product at home and abroad are actively developed. In the three in one machine, the rotary blower is used as the key transmission part, and the structure of the manipulator is controlled, as shown in Figure 1. The action of taking the blank, the feeding, the bottle and the bottle feeding is realized. Figure 1 Figure 1 slide 2 manipulator structure bearing 3 arm 4 swing control roller 5 tension spring 6 sliding control roller 7 fork mechanical hand blown bottle machine hand cam design, mostly by drawing drawing cam curve. This method is of low efficiency, poor accuracy, in the work process will cause the manipulator blank feeding is not in place, take the bottle is easy to damage the bottle mouth and bottle blowing and filling equipment speed synchronization and poor working stability problems such as [1], not only affects the quality of the bottle, and hinder the further improve the "three in one" the work efficiency the. Therefore, the analytical calculation method established the mathematical model of the manipulator trajectory and cam based on curve, and the use of Matlab to solve the coordinates of cam curve to obtain the high accuracy fast, to improve the accuracy and efficiency of the manipulator transmission to. The working principle of rotary 1 rotary bottle blowing machine bottle blowing machine structure, as shown in Figure 2, rotary type blow molding machine mainly comprises a die plate 2, blank feeding disc 4, disc 1 and take the bottle blank disc 6, there is a constant steering ratio and the relationship between them. The machine hand is evenly arranged on the edge of the blank disc by the supporting seat, and the cam is fixedly arranged at the center of the center of the stock taking and delivery. Under the driving of the power source, the driving plate is driven to rotate by a mechanical hand, and the cam remains stationary. Through a series of hardware and software design, which makes the instrument in the remote measurement and control and calibration and improves the measurement accuracy, reduce the influence of environment and human factors, saves labor and hardware resources, but also with the parameter settings confidentiality, stable performance and cost advantages, especially suitable for distributed remote measurement. Therefore, it has very important practical significance to realize the remote monitoring and fault diagnosis. The instrument has been put into the practical application of airborne measurement, and achieved satisfactory results.
