自动校秤功能秤斗三维机械CAD图纸设计.doc

充值下载即送 CAD 图纸, QQ 36396305 专业: 班级学号: 学生姓名: 指导教师: 充值下载即送 CAD 图纸, QQ 36396305 摘要称重是指预定的比例,在衡器测量几个已知的物质。用途非常广泛,可用于各种配料计量,也可用于材料测量(料斗秤)。在包装封口机的情况下,它是一种定量包装秤..具体设计是送料过程分为两个阶段,并为推动原油进料阀和较小的进给阀打开和关闭气动系统,通过两喂养确保称量精度和速度,实现脉冲修正功能,提高定量灌装精度。具有良好的人机界面,该系统可以应用于不同的颗粒物料的定量灌装。同时通过相关电气图设计,元器件选型, PLC 控制设计和控制系统程序的编写,达到自动称量和定量给料和自动控制的目的,完成设计任务。可用于化工,医药,饲料,水稻, 在松散颗粒状物料连续定量灌装食品加工等行业。关键词:颗粒物料;定量灌装;自动控制; 可编程控制器,自动校秤充值下载即送 CAD 图纸, QQ 36396305 A BSTRACT With the rapid development of social economic and technology, the demand for equipment of quantitative granular materials weighing and packaging is growing , and strictting with the required speed and precision of material packaging. According to the requests of realities in production, an automatic control system of quantitative weighing and packaging is studied on. And the better proposal is proposed to improve the speed of packaging and the precision of weighing. U sing the AD-4401 weighing instrument to weigh and display the value of material weighing, and according to the output signal of weighting cell, that plish materials quantitative weighing . Using PLC to control the sequence of filling movement, and to match relevant execute driver device in the design, that realize the electric control of the feeding for granular materia l、 the quantitative weighing and semi-automatic packaging , and soon. Design proposal of specifics is divided materiel feeling process into two stage, with pneumatic system to drive big feed valve and small feed valve. By twice feeding to guarantee the speed and precision of weighing, and to achieve the function of overshoot correction, that improve the precision of quantitative packaging . And having good human machine interface, that make the system to apply to different of granular material quantitative packaging . In addition, by the design of correlative electric drawing 、 the selection ponent 、 the design of overall control by PLC , pile program for control system , the system can realize the functions of au