公开(公告)号：US4376330A

公开(公告)日：1983-03-15

申请号：US191691

申请日：1980-09-29

申请人： Hans Weidinger ,  Werner Ehm ,  Josef Pav

发明人： Hans Weidinger ,  Werner Ehm ,  Josef Pav

IPC分类号： D21G1/02 ,  F16C13/00 ,  F16C39/06 ,  B21B13/02 ,  B21B13/14

CPC分类号： F16C32/044 ,  D21G1/0213 ,  F16C13/024 ,  Y10S100/917

摘要： A calender roll has a hollow cylinder which surrounds or is surrounded by a stationary support. That surface of the support which faces the cylinder has circumferential and axially parallel grooves for the coils of electromagnets which are energizable independently of each other or simultaneously and serve to prevent flexing and/or other deformation of the cylinder when the latter rotates and contacts a running web of paper, textile material or metallic or plastic foil. Those sections of the aforementioned surface of the stationary support which are surrounded by the coils constitute portions of circumferentially extending arcuate or annular pole faces and the polarity of each circumferentially extending pole face is constant. However, the polarities of neighboring pole faces the different, i.e., pole faces which constitute south and north poles alternate with each other, as considered in the axial direction of the calender roll. The cylinder can be subjected to controlled heating action by splitting the circumferentially extending pole faces, by connecting some or all of the coils to sources of a-c current, by varying the extent of excitation of the coils and/or by a combination of two or more of these methods.

摘要翻译： 压延辊具有围绕或被固定支撑件围绕的中空圆柱体。 支撑体面向气缸的表面具有周向和轴向平行的电磁铁线圈槽，它们彼此独立地或同时被激励，并且用于防止当气缸旋转时气缸的挠曲和/或其它变形， 纸幅，纺织材料或金属或塑料箔。 由线圈包围的固定支撑件的上述表面的那些部分构成周向延伸的弧形或环形极面的部分，并且每个周向延伸的极面的极性是恒定的。 然而，考虑到压延辊的轴向方向，相邻极的极性面对构成南极和北极的不同的即极面彼此交替。 通过将一些或全部线圈连接到交流电流源，通过改变线圈的激励程度和/或通过两个或多个组合的组合来使圆柱体受到受控的加热作用 的这些方法。