国内外自动喂毛机的现状及发展

本文综合分析了国内外多种较先进的自动喂毛机的结构特点及其发展概况，并详细论述了国产通用电子称重自动喂毛机的结构原理及其应用     

自动喂毛机浅析

该文综合分析了国内外多种较先进的自动喂毛机的结构特点及其发展概况，并详细论述了国产通用电子称重自动喂毛机的结构原理及其应用。     

自动喂毛机概论

研究了梳理机械中自动喂毛机的产生和发展历程,分析了自动喂毛机的结构组成原理和主要元件的作用.介绍了几种典型的自动喂毛机结构,主要有称重式、容积式和称重容积式.详细分析了新型称重容积式自动喂毛机的结构特点,最后指出了自动喂毛机的发展方向,即向组合式、系列化、连续化、自动化、人性化方面发展.     

自动喂毛机斜钉帘与底平帘传动的改进

自动喂毛机斜钉帘与底平帘传动的改进自动喂毛机底平帘的传动一般是由斜钉帘轴为主传动带动底平帘轴转动。由于斜钉帘速度较快，而底平帘速度却较慢，因此，需作减速传动。国产Ｂ２７２Ａ、ＳＦＢ２１３、ＢＣ２７２Ｈ、ＢＣ２７２Ｗ等梳毛机的自动喂毛机原传动是由斜钉帘...     

自调匀整式数控喂毛机的设计与应用

本文详细论述了新近设计制造的电子称重自调匀整式数控喂毛机的结构、工作原理及技术特征。     

组合式自动喂花装置的设计

分析当前新疆兵团及地方棉花加工厂籽棉货场喂花系统的现状,结合实际设计了框架组合式籽棉自动喂入装置,具有投资少、不受雨雪天气的限制,尤其对不收购、加工机采棉的地方和私营轧花厂进行改造,可以起到事半功倍的效果。本构想供棉花加工机械制造厂家和棉花加工界的同仁参考。     

棉卷离台挡位

因为锯齿轧花的产质量与工作箱的棉卷运转是否正常密切相关，所以为了确保皮棉产质量的进一步提高，必须对棉卷密度要有按照需要具备自动离合喂花挡位之功能，本就此为题作出讨论。     

自动面皮机的研究与设计

本文阐述了规模生产面皮的设备一自动面皮机的工作原理、工艺流程。并进一步表述了该套设备的主要机构：蒸箱装置、喂料装置、折叠机构、传动机构的设计原理及结构特点。     

自动面皮机的研究与设计

本文阐述了规模生产面皮的设备——自动面皮机的工作原理、工艺流程.并进一步表述了该套设备的主要机构:蒸箱装置、喂料装置、折叠机构、传动机构的设计原理及结构特点     

Short communication: Identification of diseased calves by use of data from automatic milk feeders

Housing calves in large groups is associated with a higher risk of respiratory disease and with increased difficulties in identifying diseased animals compared with single housing. The aim of the present study was to investigate the effect of clinical disease on some behaviors recorded by automatic milk feeders in pre-weaned dairy calves. The experiment included 27 calves from a Danish research farm and 41 calves from a Swedish research farm. The calves were fed restrictively from a computer-controlled milk feeder, and all calves were subjected to daily clinical examinations for 3 to 26 d, with information gathered on general condition, nasal discharge, lung auscultation findings, coughing, signs of dehydration, naval status, rectal temperature, fecal consistency, and presence of chin abscess, arthritis, umbilical hernia, poor body condition, and poor hair coat. Calves suffering from diarrhea, respiratory disease, fever, or unspecific decreased general condition for more than 2 d were considered to be diseased and were declared to have recovered when they had been free of clinical signs of the disease for at least 2 d. The effects of clinical status (healthy, diseased) on the number of rewarded and unrewarded visits to the calf feeder and drinking rate, respectively, were analyzed by variance component analysis using a mixed model. Milk consumption on diseased and nondiseased days within calves was compared using a Wilcoxon signed rank test. In total, 53 of the calves were diagnosed as diseased during the study period. All cases of diseases were mild and were associated with an unaffected or only mildly affected general condition. Diarrhea was diagnosed in 51 calves, 6 of which also had respiratory disease. In 2 calves, respiratory disease was the only diagnosis. Eleven calves had an unspecific decreased general condition. The number of unrewarded visits was significantly reduced when calves were diseased. In Swedish calves, there was also a tendency for rewarded visits to be reduced during diseased days. Drinking rate and number of rewarded visits increased with increasing age. No effect of clinical status on milk consumption was detected. The number of unrewarded visits was the most sensitive of the 4 feeding behaviors monitored to indicate clinical disease in calves fed restricted milk volumes.     

Lactation performance and feeding behavior of dairy cows supplemented via automatic feeders with soy hulls or barley based pellets

The potential of soy hulls to replace barley grain in pellets supplemented to lactating cows was measured in automatic concentrate feeders (ACF). Thirty-six cows were divided into 2 equal groups and fed 1 of the 2 experimental pellet supplements individually for 7 wk. All cows were group-fed a basic mixture along the feeding lane (~64% of dietary DM) plus a pelleted additive containing 50% barley or soy hulls as barley replacer, fed individually to each cow via the ACF in 6 feeding windows. Extent and rate of in vitro DM digestibility were similar for both types of pellets; however, NDF content and digestibility were higher in the soy hulls pellets. Average number of rewarded cow visits at the ACF, pellets intake per meal, and accumulated intake of pellets (8.64 kg/d DM) were similar in the 2 experimental groups. Most pellets were consumed during day and night in the first 2 h after feeding windows were opened. Total visits per day in the ACF and the maximal interval between visits were similar for the 2 pellets, indicating similar attractiveness to the cow. Predicted intake of the basic mixture was similar in both groups (14.8 to 15.1 kg of DM/d). Higher milk fat content was observed in the soy hulls-fed cows, whereas higher milk protein content was found in the barley-fed cows. Milk yield was similar in both groups. Data suggest that replacement of barley pellets with soy hulls pellets may slightly enhance milk fat while reducing milk protein production for dairy herds using automatic milking systems.     

织物经纬密度自动测量的研究现状及其展望

介绍了目前国内外织物经纬密度自动测量的研究现状、研究方法以及推向市场的测量仪器的情况,并对织物自动测量的研究方法和技术进行了展望。     

织物疵点自动识别方法的研究及应用现状

介绍了近20年国内外织物疵点识别方法与自动检测系统的研究发展历程及已成功推向市场的研究成果，分析了我国织物自动检测系统的研究现状，指出了适合我国的研究发展方向。     

自动菌落计数仪在乳品检测中的应用研究

目的对自动菌落计数仪的技术参数、准确度、精密度、重现性等进行试验,研究其是否满足乳品中菌落总数的计数要求。方法选用一次性平皿的倾注法和3M测试片法的菌落结果进行计数,检测项目包括菌落总数、大肠菌群、霉菌酵母、嗜冷菌、乳酸菌等。检测结果分别用仪器法和目测法进行计数,并对结果进行比较。结果目测法和仪器法计数结果进行配对T检验分析可知在95%置信区间P值大于0.05,在统计学上无显著性差异,但检测结果偏差10%的符合率达不到100%。重复性偏差为0.43%～5.52%,重现性试验相对标准偏差为3.60%,国标方法的标准偏差为3.05%。结论样品的背景颜色和颗粒度对仪器的计数结果有影响,可根据实际情况选择使用。     

筒子纱包装自动配重方法研究

针对筒子纱依靠人工配重包装,工作效率和自动化程度低,配重误差大,无法满足国内筒子纱生产企业售纱时对每个筒子纱包装袋总质量一致性要求的现状,提出了一种筒子纱包装流水线在线动态称重自动配重方案。根据筒子纱打包原理及筒子纱包装袋总质量误差控制的要求,设计了筒子纱全自动流水式动态输送打包流程,研究了基于储纱立体库的纱筒质量自动配重方法,重点阐述了立体库储纱的基本工作原理、纱筒动态输送过程中包装袋质量自动配比的目的、原理和方案。通过仿真计算分析得知,采用区间分布及质量配比的筒子纱自动配重方法效果良好,自动配重包装系统设计方案合理可行。     

凯氏定氮仪联合液相色谱法测定香菇中甲醛含量

目的建立全自动定氮仪和液相色谱仪检测分析香菇中甲醛的含量。方法利用全自动定氮仪全封闭的有利条件,利用水浴方法析出香菇中甲醛,利用液相色谱仪测定甲醛含量。结果香菇中甲醛的检测优化条件为蒸馏4 min,水浴温度为60℃,水浴时间为60 min。当甲醛浓度为0.0~10.0 mg/kg时,标准曲线线性关系良好,相关系数r为0.9995,加标回收率为73.0%~107.3%。结论凯氏定氮仪联合液相色谱法能够快速检测香菇中甲醛含量,并且准确度高。     

镇江香醋自动化炒米色新工艺的研究

该文介绍了镇江香醋自动化炒米色新工艺。包括使用清洁能源天然气;燃气炒米色锅炉的设计特点;炒米色过程采用程序逻辑控制,具有自动吹扫、自动点火、紫外火焰检测、温度监控、连锁报警功能及显示。初步总结了炒米色新工艺的技术参数及操作要求。首次提出了炒米色的质量内控标准。并对节能减排效果进行简要评价。     

全自动炒菜机结构设计与试验

目的：针对现有炒菜机存在体积大、加热均匀性低等问题,设计一种采用电磁加热的全自动滚筒式炒菜机,减小设备体积并改善炒菜效果。方法：采用面向功能—结构的模块化设计方法,对炒菜机各模块机构进行设计;基于毕奥—萨伐尔定律,得到线圈在空间产生磁场与所通电流和距离的关系,并通过Ansys-Maxwell联合仿真,得到3种线圈排布方式下锅具表面磁场强度和温度分布曲线;采用Ansys软件,对滑轨机构进行模态分析,得到机构发生不当变形频率段;研制样机并与3种烹饪方式对比,验证样机炒菜效果。结果：与现有炒菜机相比加热均匀性有很大提升,结构设计和实际炒菜效果满足使用要求。结论：研究设计的全自动炒菜机具有较高的可行性与实用性。