基于遗传算法的包装推料机构的反求设计

提出将反求技术、遗传算法与包装技术结合应用于开发包装机械机构设计。针对推料装置的具体结构。利用平面投影方法建立直动型推料机构的数学模型。结合优化理论．确定四参数的优化目标，反求其运动规律，进行参数分析．确定参数的取值范围，使用遗传算法反求得最合原设计的设计参数。并对建立基于遗传算法的包装机械机构设计反求工程研究所涉及的问题进行了探讨。     

山楂片自动裹包方案研究

以锡箔纸裹包的山楂片为研究对象,研究山楂片自动裹包方案的实现方式。通过对山楂片自动裹包机械的设计要求的分析,探讨山楂片包装技术原理及其生产工艺流程,研究裹包工艺方案,以及完成裹包的各个关键机构的运动过程,并设计关键机构的工作循环图,完成了对裹包动作的工作循环图的设计。最终形成自动裹包工艺方案,为开发农副产品自动包装机械提供参考和依据。     

精致西点配方之熏衣草鲜果木司和黑森林蛋糕

熏衣草鲜果木司 LAVENDER FRUITS MOUSSE 制作配料: 奶油芝士 250克 草莓酱 60克 淡奶油 250克 熏衣草水 10克 蛋黄 3个 砂糖 85克 鱼胶片 15克 六角威风蛋糕坯两片 裹面装饰料:新鲜水果,巧克力扇,巧克力片.     

全自动二次装袋机的研发

二次装袋可使料袋避免在物流过程中被污染或破损，国内现有的二次装袋多为人工装袋后再进行手动热封，这导致包装后的外观质量参差不齐，加大了工人的劳动强度，还增加了企业的人力成本。为解决这些存在的问题，文章对储袋给袋机构、推包机构、取袋剔袋机构、张袋撑袋机构、推包定位机构、热封理袋机构等多项机构进行研究，开发出适应粮食、食盐、种子、奶粉等粉状及颗粒立体袋装后的二次套袋包装的全自动二次装袋机。     

摆臂式回转插袋机优化设计及其主从控制

为解决摆臂式回转插袋包装机插袋率偏低的问题,对摆臂机械手四连杆机构进行优化设计,并使用电子凸轮技术对其进行主从随动控制.首先以四连杆机构参数为设计变量,四连杆连杆展开杆轨迹与理想插袋轨迹误差最小、四连杆连杆展开杆与出料嘴轴线夹角最小为优化目标,利用遗传算法求解多目标约束问题.然后,应用电子凸轮对回转料塔和摆臂机械手进行...     

垂直倾斜切片机切片厚度控制系统的优化设计

为解决垂直倾斜切片机烟包分切后因切片厚度不均造成电子秤上物料中断等问题,基于平行四边形双摇杆机构的摆动原理对切片厚度控制系统进行了优化设计。料板背面增设辅助定位气缸,为传动机构提供动力并协助原定位气缸快速定位;通过调节辅助定位气缸活塞杆上的伸缩螺栓,可调整片烟的分切厚度;增加了延时控制功能,烟包定位由挡料板和接近开关共同完成,使挡料板起到阻挡作用。结果表明,通过改进烟包定位控制方法,有效解决了挡料板定位过程中产生晃动和烟包到位检测的不确定性问题,烟包分切厚度均匀稳定,松片回潮机供料中断次数由改进前的15次/月降低为2次/月,提高了松片回潮机的来料稳定性。     

推料机构的优化设计

一、概述包装机械中常设有推料机构,它是将待包装的物料推入包装纸,以便用包装纸将物料包裹起来的机构(参见图1)。一般应用的推料机构有两种:一种是如图1所示的直线往复运动推料机构,另一种是平面曲线运动推料机构。     

裹包青贮饲料技术应用现状及制作规程研究

裹包青贮是目前最受欢迎的一种青贮制作和保存技术,我们对裹包青贮的优缺点、国内外应用现状、材料与影响因素进行了综述,详细研究了拉伸膜裹包青贮技术及规程,以期为裹包青贮在我国草食家畜饲养中的进一步应用提供借鉴和参考。     

专利三则

正专利名称:立式带锯机申请号:CN201810196460.4公告号:CN108437075A申请日:2018.03.09公告日:2018.08.24申请人:佛山市顺德区林粲机械设备有限公司本发明涉及一种立式带锯机,它包括机床、送料机构、推料装置、夹料组件和锯料机构,送料台左右滑动设置在机床顶面;推料装置包括托架和推料驱动机构,托架设置在送料台上,推料驱动机构设置在托架上;夹料组件前后滑动设置在托架上;锯料机构包括主动锯轮、被动锯轮、支撑座、锯料电机     

紫雪蕉(水果甜食)

原料:香蕉6只,奶粉、麦乳精若干,黑、白色巧克力各100克.制作:1、香蕉去皮,3只裹上奶粉,3只裹上麦乳精,在盘中码放     

用于碳纤维织物的多层织机经纱张力检测方法

为提高经纱张力的控制精度,防止碳纤维在送经机构长距离输送过程中因自身质量下垂,导致经纱张力控制精度不高对织物质量造成影响,结合现有的经纱张力控制方法,提出基于神经网络的模糊信息融合综合算法。根据神经网络得到的权值函数,以多层织机的送经机构为研究对象进行实验。实验过程中,在多层织机送经机构的不同位置安装张力传感器,通过无线信息采集系统,对经纱张力进行在线多点检测,然后将检测的张力信号进行模糊信息融合。实验结果表明：多传感器信息融合的识别准确率优于单传感器,提高了用于碳纤维织物的多层织机经纱张力的控制精度。     

胡萝卜薄片热风与热泵结合干燥工艺及特性研究

研究了热风与热泵结合干燥胡萝卜的显微结构和化学变化特征 ;采用均匀设计方法进行胡萝卜结合干燥工艺参数试验 ,以平均干燥速率、胡萝卜素含量、复水比和彩度为指标 ,求解了单目标和多目标最优工艺参数。     

The comparison of biosorption of nutritionally significant minerals in single‐ and multi‐mineral systems by the edible microalga Spirulina sp.

BACKGROUND: This paper deals with the biosorption process as a method of enrichment of natural biomass of the edible microalga Spirulina sp. with microelement metal ions, which is of significance in terms of animal nutrition. The influence of the following process parameters was studied for the biosorption of Cr(III): pH and biomass concentration on kinetics and equilibrium of biosorption. The enrichment process were performed in single‐ and multi‐mineral systems for nutritionally significant minerals such as Cu(II), Mn(II), Co(II), Zn(II) and Cr(III) under the conditions that were determined for Cr(III). RESULTS: The best operational parameters for the process were selected as pH 5 and Cs 1 g L^?1. The maximum biosorption capacity 71.2 mg g^?1, 18.4 mg g^?1, 83.9 mg g^?1, 31. 8 mg g^?1 and 26.5 mg g^?1, were reached for Cu(II), Mn(II), Co(II), Zn(II) and Cr(III), respectively. To cover 100% of animal demand on microelements, 4.91 g of the preparation for laying hens and 9 g for swine of enriched microalgae in the single‐metal system should be added to 1 kg of fodder. In the multi‐metal system the competition between microelements was high enough to make it impossible to reach a suitable ratio between bound metal ions. CONCLUSIONS: Two methods of production of mineral feed additives were proposed: a single‐metal system and a multi‐metal system. Performing the biosorption process in the single‐metal system enabled the preparation of additives with the desired composition. Carrying out biosorption in the multi‐metal system is easier, technologically, but the ratio of bound microelements is difficult to predict. Copyright © 2009 Society of Chemical Industry     

箱包类土布面料的开发

土布产品以床上用品为主,单一的产品类型难以满足人们的需求。以箱包类土布面料为对象,介绍了其开发过程中对纱线的选择及织物组织的要求,并设计参数进行了小样上机试织,为箱包类土布面料的开发提供参考。     

An insight into the bread bubble structure: An X-ray microtomography approach

An insight into bread bubble structure is presented in this study. In particular, different types of bread have been investigated differing both in the yeast and water contents and therefore leading to distinct cellular structures. X-ray microtomography was used in combination with advanced statistical methods in order to find a correlation between the bread bubble size and its shape. Therefore in order to obtain in depth quantitative information the individual object geometrical parameters, OV, OS and SMI as stated above, were calculated using CTAn software (SkyScan) as these parameters provide the quantitative information for every single object (pore) present in the samples. The statistical results confirm that the small air cells incorporated in the dough and that are more or less cylindrical in nature, continue to grow and change shape (more plate like in nature) during baking. The results also highlight that this change in the shape with the increase of pore volume and surface is independent of the yeast or water content.     

The application of macroalga Pithophora varia Wille enriched with microelements by biosorption as biological feed supplement for livestock

BACKGROUND: The paper discusses biosorption of microelements by a freshwater macroalga Pithophora varia Wille to produce biological feed supplement for livestock. The biomass was enriched with microelements recommended by feeding standards in a single and a multi‐metal system. RESULTS: The equilibrium of biosorption was described by using a Langmuir model and the following values of the maximum biosorption capacity in the single‐metal system were obtained: Zn(II), 61.1 mg g^?1; Co(II), 52.3 mg g^?1; Cu(II), 55.7 mg g^?1; and Mn(II), 38.3 mg g^?1. The average value of maximum biosorption capacity expressed in molar units for all the cations was equal 1.7 ± 0.2 meq g^?1, suggesting chemical rather than physical biosorption. It was also found that the mechanism of biosorption was due to cation exchange of alkali and alkaline earth metals with microelements. The biomass was also enriched with microelements in multi‐metal system. The total metal ion binding capacity in the multi‐metal system was two‐fold lower than in the single‐metal system and was 0.90 meq g^?1 in the preparation for laying hens and 0.95 meq g^?1 in the supplement for swine. CONCLUSION: Finally, the level of supplementation of livestock feed (with enriched single‐ and multi‐metal system macroalga), to cover 25% of total requirements for microelements, according to feeding standards, was provided. Copyright © 2008 Society of Chemical Industry     

Application of multi‐element viscoelastic models to freshness evaluation of beef based on the viscoelasticity principle

The aims of this work were to develop multi‐element viscoelastic models for beef and apply them to detect total volatile basic nitrogen (TVB‐N) content for freshness evaluation. The deformation data were collected by a viscoelasticity detection system that employed the airflow and laser technique. Then, TVB‐N contents were measured to determine the freshness of samples during storage. A universal global optimization (UGO) algorithm was applied to fit the deformation data. Various multi‐element viscoelastic models including the Burgers, six‐element and eight‐element models were built using the obtained fitting parameters, and different viscoelastic parameters representing the degree of beef spoilage were obtained. All the viscoelastic parameters of each multi‐element model and parameter combinations of the selected six‐element model were employed to build mathematical models for predicting TVB‐N content by support vector machine regression (SVR). In comparison, the six‐element model with all the viscoelastic parameters performed the best and was determined to predict TVB‐N content with correlation coefficient in the prediction set (R_P) of 0.891 and root mean squared error in the prediction set (RMSEP) of 1.467 mg/100 g. Based on the results of parameter combinations, combination (E₂, E₃, E₁, η₁, η₂) from the six‐element model performed the best, which was comparatively inferior to all the viscoelastic parameters of the six‐element model. Results demonstrated that it was possible to predict TVB‐N content for freshness evaluation by applying method of developing multi‐element model based on the viscoelasticity with chemometrics.     

竹材多刀劈篾机的研究

本文着重阐述了竹材多刀劈篾机的研究背景、设计思想和原理、基本结构、主要技术参数的确定、技术性能等。竹材多刀劈篾机具有比单刀劈篾机成倍高的生产效率，生产的竹篾质量达到工业用竹篾的要求，并具有切削厚度多刀同步调节、操作安全方便等优点。是竹材加工的理想设备。     

基于包络理论的谐波传动共轭齿廓求解和啮合分析

针对数值求解谐波传动共轭齿廓推导复杂,不易求解等问题,运用一种根据柔轮运动轨迹包络的方法求解共轭齿廓,同时调整柔轮齿廓的沿轴向的不同齿高,使柔轮齿与共轭钢轮齿啮合时不发生干涉。为分析柔轮的齿根圆半径和转矩对柔轮应力的影响,通过Ansys Workbench建立了多体接触模型,探究了齿根圆半径和加载不同转矩对柔轮应力的影响规律。结果表明:柔轮应力对齿廓参数变化的敏感度高于所加载的转矩,因为谐波传动为多齿啮合传动,单个齿所受的应力较小,载荷对柔轮应力的影响相对小于齿廓参数的影响。