Design Of Single-Axis Liner Motion Mechanism And Its Control System For Compaction Woking Device

For wine brewing, having distillers’grains fermented in pits is an extremely important process. While traditionally, it was done manually, by which, it is not only low efficient, but also constitutes a great challenge to the current industry for increasing focus on food security and sanitation. Against this context, I’d like to propose in this paper a general design solution in terms of the brand new device for pit-entry and grains-stepping.The general structure of the equipment to position grains-stepping device in the pit is designed on the basis of conditions on site, which comprises translational mechanism, elevator, quick-change equipment, overall rotating device and other parts. When we perform grains-stepping, the translational mechanism is moving respectively in the direction of X and Y by travelling carts and trolleys at these two directions. While the elevator equipped with two-staged servo electric cylinder (with three cylinders) can realize the movement in the Z direction. In this way, we can not only enhance the system’s rigidity, but also save space occupied by the device. For quick-change equipment, besides for grains-stepping, it’s also available to connect with other devices to fulfill other processes such as fermented grains removal and pit walls cleaning, ensuring the system more multifunctional. Thanks to the design of the overall rotating device, that enables the rotating device to rotate as a whole when the stepping device is working, enables strike-off and stepping to be operated more flexibly and efficiently. The grains-stepping mechanism, whose general structure is designed following the basic rule of manual stepping, is consisted of such parts as framework, stepping foot and strike-off equipment etc. Reasonable design of the framework guarantees the intensity of mechanism, while the stepping foot, supported by servo cylinders, makes the operation of extension and draw-back possible. In order to properly control the force for stepping, appropriate tension sensors shall be selected, thus making stepping force adjustable. To make sure the force is evenly exerted when stepping, we imitate the structure of joint ankle of human being and have a built-in spring equipped at the position connecting the stepping foot and treadles. Outside the stepping device, there installed two kinds of strike-off rakes with different spacing to flat the grains poured into the pit.With a view to realizing automation for grains-stepping, here I raise the general design solution for the stepping control system, of which it includes PLC, touch panel, servo driver and motor, position and force sensor etc. In this article, I’d like to analyze the structure of the control system, give pertain introduction for constituted hardware and specification selection, and to comb and study the process of control procedure.This device contributes a lot to productivity improvement and labor intensity lowering, as well as sanitary conditions amelioration during production by realizing mechanization and automation of grains-stepping process, while with all requirements on process met at the same time.