白酒大曲多点柔性制曲机设计及其结构优化

Design and structure optimization of the multi-spots starter-pressing machine of Daqu in Chinese spirits

针对现有白酒制曲机结构单一及力度可控性差,曲块整体松紧程度不一致,而导致提浆以及酒品不能达到人工踩曲效果的问题,设计一种新型多点多次柔性可控制曲机,多个锤头进行不同的组合实现多次多点、柔性揉挤剪切曲块,能较好地模拟人工踩曲,可压制出内外松紧适中、匀称的曲块。采用Workbench有限元软件对制曲机关键部件支撑板进行静态力学分析,利用Design Explorer对其参数变量进行多目标优化设计,使得支撑板质量在原设计的基础上减小了24.6%。通过对其主要零部件的优化设计,制曲机在满足曲块工艺参数的条件下,整机重量在原设计方案下减重明显,整机结构更紧凑,综合性能得到提高。

Considering the paste and wine can not meet the effect of the artificial bending due to the single structure and poor controllability of the existing Daqu liquor knee-piece bending press machine,which result in the discordance of the Daqu overall tightness.A new multiple-points flexible controlled bending press machine was designed.A multitude of hammers in different combinations repeatedly and multiple-points with flexibility crowed and sheared the block,which simulated the artificial start-pressing and block-making,so that better effect of the block with moderateness and uniformity could be achieved.The key component of which supporting plate structure was optimized and analyzed the static characteristics by using the Workbench finite element software,using the Design Explorer optimization module variable parameters of the multi-objective optimization,the mass of the supporting plate was reduced 24.6%.Through the optimization design of the main components,under the condition of meet the curved piece of process parameters,the weight of the whole machine lost significantly compared to the original designed scheme,as well as a more compact structure and better comprehensive performance of the machine was achieved.