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公开(公告)号:US4196645A
公开(公告)日:1980-04-08
申请号:US948612
申请日:1978-10-04
CPC分类号: B23D25/04 , B23D36/0041 , B23D36/0058 , Y10T83/0515 , Y10T83/159 , Y10T83/4737 , Y10T83/4763
摘要: A method and apparatus for cutting a web into a specified length in which an upper cutting edge and a lower cutting edge are provided respectively above and below the web run at a constant speed. The web is cut into the specified length by moving said upper cutting edge vertically while said upper and lower cutting edges are swung in the web movement direction. The swinging and vertical movements of said cutting edges are accomplished by rotation of an eccentric crank shaft driven by a DC motor. A rotation angle of the eccentric crank shaft and a movement length of said web are outputs provided in the form of pulses, respectively, in order to coincide a movement speed of the web with a swinging speed of the cutting edges in cutting said web.
摘要翻译: 一种用于将幅材切割成规定长度的方法和装置,其中上切割边缘和下切割刃分别以恒定速度设置在幅材上方和下方。 当所述上切割边缘和下切割边缘在幅材移动方向上摆动时,通过垂直移动所述上切割刃将幅材切割成指定长度。 所述切削刃的摆动和垂直运动通过由直流电动机驱动的偏心曲柄轴的旋转来实现。 偏心曲柄轴的旋转角度和所述幅材的移动长度分别是以脉冲形式提供的输出,以便在切割所述幅材时使幅材的移动速度与切割边缘的摆动速度一致。
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公开(公告)号:US4234365A
公开(公告)日:1980-11-18
申请号:US974273
申请日:1978-12-28
IPC分类号: B65H19/18 , B65H21/00 , B65H23/192 , B26D5/00
CPC分类号: B65H19/1868 , B65H19/1836 , B65H2301/4623 , B65H2301/46414 , B65H2301/464145
摘要: A web butt-joining system having a feeding section with rolls for feeding a pair of new and old webs, a cutting and joining section having cutting drums and joining drums, and a drive control section. The latter is composed of a driving DC motor commonly coupled to the cutting drums and joining drums. A calculation control circuit drives the DC motor and drive control section is operated to cut said new and old webs fed from said feeding section and piled one on another with said cutting drums and to butt-join the ends of said webs thus cut with bonding tapes provided on said joining drums.
摘要翻译: 一种卷边对接系统,具有供给部分,该供给部分具有用于供给一对新旧卷材的卷筒,具有切割滚筒和连接滚筒的切割和接合部分以及驱动控制部分。 后者由通常耦合到切割鼓和连接鼓的驱动DC电机组成。 计算控制电路驱动直流电动机,驱动控制部分被操作以切割从所述供给部分供给的新旧卷材,并且用所述切割滚筒将其彼此堆叠起来,并用接合带将所切割的纤维网的端部对接 设置在所述接合鼓上。
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公开(公告)号:US4104723A
公开(公告)日:1978-08-01
申请号:US769846
申请日:1977-02-17
CPC分类号: B23D36/0041 , Y10T83/148
摘要: A method for controlling the speed of a rotary cutter to cut a continuouslyed web accurately into predetermined lengths. A desired cutting length and the circumference of the rotary cutter are preset. The web speed as detected is multiplied by a coefficient equal to the cutter circumference divided by the cutting length. The resultant signal is compared with the cutter speed as detected, and, if there is any difference, the cutter speed is corrected for accurate cutting.
摘要翻译: 一种用于控制旋转切割器将速度连续地切割成预定长度的方法。 期望的切割长度和旋转切割器的周长被预设。 检测到的纸幅速度乘以等于切割长度除以切割长度的系数。 将所得信号与检测到的切割速度进行比较,如果存在差异,则修正刀速度以进行精确切割。
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