公开(公告)号：US4925520A

公开(公告)日：1990-05-15

申请号：US230893

申请日：1988-08-11

申请人： Henry J. Beaudoin ,  Donald W. Lammers ,  John A. McCabe

发明人： Henry J. Beaudoin ,  Donald W. Lammers ,  John A. McCabe

IPC分类号： A61F13/15

CPC分类号： A61F13/15601 ,  Y10T156/133 ,  Y10T156/1339 ,  Y10T156/1734 ,  Y10T156/1771

摘要： An elastic ribbon is fed over a vacuum drum. Rotating cutter blades use the drum as an anvil to cut the ribbon into spaced apart segments. A sheet comprising a diaper web runs over a roll that is spaced from the drum. A segment transferring and stretching device is arranged between the drum and roll. One embodiment of the transferring device has grippers rotating together about the axes that are not coaxial but are at opposite acute angles relative to the roll and drum axes. The grippers engage an unstretched elastic segment on the drum when the grippers are close together but as they rotate they spread apart and stretch the segment which is then pressed onto the glue treated sheet. In another embodiment of the elastic segment stretching and transferring device, grippers are mounted to the periphery of a vacuum drum. At least one of the grippers is moved alternately toward and away from the other under the influence of a stationary cam as the drum rotates.

摘要翻译： 将弹性带送入真空鼓上。 旋转刀片使用滚筒作为砧将丝带切割成间隔开的部分。 包括尿布网的片材在与鼓隔开的辊上延伸。 滚筒和滚筒之间布置有分段传送和拉伸装置。 传送装置的一个实施例具有夹持器，其围绕不同轴但相对于滚筒和滚筒轴线成锐角的轴线一起旋转。 夹子接合在滚筒上的未拉伸的弹性部分，当夹持器靠近在一起时，但是当它们旋转时，它们展开并拉伸该片段，然后将其压到经过处理的胶片上。 在弹性段拉伸和转移装置的另一实施例中，夹具安装在真空鼓的周边。 当滚筒旋转时，夹持器中的至少一个在固定凸轮的影响下交替地向另一个移动。