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商品名称: 【1746-NO8I】跑高速用“S”挡还是“D”挡?
商品编号: 1746-NO8I 
商品型号: 1746-NO8I 
积分点数: 0 点
市面价格: 1120 元
现售价格: 1120 元
库存量: 不限 个
联系方式: 18030229053 
浏览人次: 5660
发 布 者: xmgwoy89
发布日期: 2018-12-27
商品介绍
1746-NO8I
1746-NO8I
1746-NO8I
1746-NO8I
1746-NO8I
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〖厦门光沃自动化设备有限公司 竭诚为您服务〗   
〖联系人:欧先生         〗
〖手机:18030229053(微信同号)       〗
〖QQ:  2479261344     〗
〖传真:0592-5709825  
【价格】如此低价,仅此一家 
【货期】大量现货,下单后即可发货
【质量】全新原装,进口***
【保障】产品经过专业检测,质保一年,15天包退换
【品牌】Allen-Bradley罗克韦尔、ABB、本特利Bently 3500系统卡件、GE、艾默生西屋等模块卡件
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LP1-24M16R型PLC用来处理控制系统的逻辑部分,采用公司的专用梯形图视窗,可以根据用户的需求方便及时的增加减和修改功能。模拟量拓展EX-2AD2DA型PLC模块输出一定的电压控制变频的频率从而控制切刀电机的运行。

  拉纸伺服和印刷辊伺服通过编码器跟随切刀电机。印刷辊电机控制印刷辊旋转的位置同切刀的位置保持同步,起始点通过机械调整,对齐起始点后,印刷辊伺服通过编码器跟随切刀电机。拉纸伺服通过编码器跟随切刀电机,保证切刀每个周期内拉纸伺服电机向前进纸的长度稍大于预设值,拉纸的速度和送纸的速度是不一致的,一般送纸速度要大于拉纸的速度,但是在切刀的一个周期内拉纸长度同送纸长度是一致的,在送纸同拉纸的中间有一个弹簧张力杆来存储一部分纸张,一方面来保证纸的张力,使纸一值处于平整状态,另一方面避免送纸时拉纸还来不及时导致纸张断裂。碰见色标时,在送纸伺服处理色标纸张周期内,拉纸的动作是不会改变的,拉纸长度依旧固定不变,这样会导致两个问题,第一个问题,弹簧张力杆部分的纸张变多,当色标纸张小于设定纸长时,可能会导致纸张接触到地面,第二个问题弹簧张力杆部分的纸张变少,当色标纸张大于设定纸长时,可能会导致纸张断裂。针对第一个问题,在弹簧张力杆的下部安装一个对射电眼,当纸张下垂到这个位置时,电眼信号延迟一段时间做出反映使拉纸伺服停止工作一段时间,使拉纸长度减少。第二个问题,由于提前存储了一定长度的纸张,并且每个周期拉纸的长度稍大于送纸的长度,这样,即使每次色标纸张长度都大于正常纸张时,被色标纸张多带走的部分纸张长度,会在多个切刀周期内通过拉纸部分补偿回来,补偿纸张多了,可以通过问题一的解决方法减少补偿。

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【1746-NO8I】跑高速用“S”挡还是“D”挡? - 水电站相关设备 - 西部电力网-电力新闻|电力产品
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