The Simulation And Optimization On The New Slicing Machine Of Lotus Root Based On Virtual Prototype Technology

The new slicing machine which apply a new kind of crank-slider cutting mechanism and a new blowing device pushed the piece of lotus root can solve the problem of the lotus root fragment and lotus root adhibited with knife. But this machine still have some problems. To solve the problem in slicing machine ,such as the large vibration in machine, the low cutting quality, the bevel edge in the piece of lotus root and the complex structure of pushing the piece of lotus root device, we apply virtual prototype technology to kinematics and dynamics simulation of slicing machine ,find out the main factor influenced the capability of slicing machine . By the optimization design, we ameliorate the structure of slicing machine , improved the capability of slicing machine of lotus root and cutting quality of lotus root, solved the problem of the piece of lotus root adhibited with knife.1) The virtual prototyping model of slicing machine was established by using the software PRO/E, including: cutting mechanism, worktable, the material barrel.2) By using the software MSCADAMS, the velocity curve, acceleration curve and force of the key components and parts were obtained via kinematics and dynamics analysis of cutting mechanism in slicing machine of lotus root. The influences of the structural parameters variation on force key components and parts and quality of cutting mechanism were discussed. we find out that the imbalance inertia force in the level direction of cutting machine; the force in the vertical dirction of link to knife is the main fator to lead the low cutting quality and the bevel edge in the piece of lotus root.3) At the base of kinematics and dynamics analysis of cutting mechanism in slicing machine of lotus root, optimizing the cutting mechanism, to reduce the imbalance inertia force in the level direction of cutting mechanism and the force in the vertical dirction of link to knife. First , using the theory of mechanism balance to analyse cutting mechanism, we find that appending mass block can reduce the imbalance inertia force of mechanism. Meanwhile, we choose the weight of mass block and the distance between the mass block and the center of crank as the design variable. going to simulation by using the software MSC.ADAMS ,we got that weight of mass block is 8kg, the distance between the mass block and the center of crank is70mm,the imbalance inertia force reduce to the half than before.4) We change the distance in vertical dirction of crank to reduce the the force in the vertical dirction of link to knife. When the distance in vertical dirction of crank is-80mm, the force in the vertical dirction of link to knife almost is zero.5) To solve the problem of the complex structure of pushing the piece of lotus root device in the slicing machine, we designed a following device to pushing the piece of lotus root. To analysis the force of the piece of lotus roots when the device of pushing the piece of lotus root was used in the slicing machine of lotus root at the different cutting speed, we got the weight of pushing board when the pushing board can entirety put out the piece of lotus roots. So that The conclusion of simulation provides the theory for optimizing the device of pushing the piece of lotus roots .Based on Virtual Prototype Technology, We go to optimize the structure of the new slicing machine. Meanwhile, Making the experiment studied, when the rotate speed of machine reach the 90～100r/min,The rate of fragment was not more than 3.5%, the level of thickness error was not more than 10% . The work efficiency of machine was advanced. The device of pushing the piece of lotus root can solve the problem.