公开(公告)号：US5906333A

公开(公告)日：1999-05-25

申请号：US838278

申请日：1997-04-16

Applicant: Rudolph S. Fortuna ,  Larry E. Birnbaum ,  James D. Ba Dour, Jr. ,  Paul K. Pauling ,  James L. Baggot ,  David R. Gruber ,  Michael E. Daniels

Inventor： Rudolph S. Fortuna ,  Larry E. Birnbaum ,  James D. Ba Dour, Jr. ,  Paul K. Pauling ,  James L. Baggot ,  David R. Gruber ,  Michael E. Daniels

IPC: B65H19/16 ,  B65H19/18 ,  B65H19/12

CPC classification number: B65H19/1863 ,  B65H19/1836 ,  B65H2301/41361 ,  B65H2511/232

Abstract: A center driven unwind system including a pair of horizontally spaced-apart side frames defining the beginning of a path of travel of the web being unwound from a parent roll for processing by a rewinder, a U-shaped arm structure pivotally mounted adjacent the U-shape base on each side frame with each arm of the U-shape adjacent the arm free end being equipped with a retractable chuck for insertion into a parent roll core, a variable speed drive operably associated with each chuck and adapted to develop an increasing rotational speed characteristic in the chuck as a parent roll carried by the chuck is unwound, a core table positioned adjacent the frame and adapted to receive from the U-shaped arm structure a partially unwound parent roll, the core table being equipped with a cradle for rotatably supporting the partially unwound roll after the chucks have been retracted therefrom, sensors provided on the U-shaped arm structure for positioning the chucks for introduction into the core of a parent roll to be subsequently unwound, and a thread-up conveyor adjacent the core table for conducting a leading edge portion of a web from the parent roll to be subsequently unwound toward the tail end portion of a web from the partially unwound parent roll for simultaneous introduction into a rewinder.

Abstract translation: 一种中心驱动的展开系统，包括一对水平间隔开的侧框架，该侧框架限定了从母辊展开的卷筒纸的行进路线的开始，用于由回卷机处理; U形臂结构， 形状在每个侧框架上，U形的每个臂邻近臂自由端装备有用于插入母卷芯的可伸缩卡盘，可变速驱动器，其可操作地与每个卡盘相关联并适于产生增加的转速 作为由卡盘承载的母辊的卡盘的特征是展开，芯台与相邻的框架定位并且适于从U形臂结构接收部分展开的母辊，所述芯台装备有用于可旋转地支撑的支架 卡盘已经退回后的部分展开的卷筒，设置在U形臂结构上的传感器，用于定位卡盘以引入到 随后展开的母卷以及邻近芯台的穿线传送带，用于将母卷的导向边缘部分从母卷导向，以便随后从部分展开的母卷向着卷筒纸的尾端部解卷 同时引入回卷机。