The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 2004
Filed:
Jul. 09, 2002
Yoshizumi Kumatori, Yokohama, JP;
Tokyo Kikai Seisakusho, Ltd., Tokyo, JP;
Abstract
A controller for controlling the running tension of paper web for rotary press includes a paper feed unit ( ) and a printing unit ( ) provided with a printing cylinder ( ) rotating according to an operation speed command. An in-feed roller ( ) is provided in a running path of paper web (W) from a paper roll ( ) of the paper feed unit ( ) to the printing cylinder ( ). A dancer roller device ( ) detects a displacement amount of a dancer roller ( ) relative to a reference position of the dancer roller ( ) and absorbs variations of the running tension of the paper web (W) by the displacement. A tension control processing unit (S ) performs signal generation processing to optimize the peripheral speed of the in-feed roller ( ) with respect to the peripheral speed of the printing cylinder ( ) based on the displacement amount of the dancer roller ( ) and the operation speed command.