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:
Apr. 01, 2003
Filed:
Apr. 24, 2001
Makoto Tsunashima, Kawasaki, JP;
Hideo Kawamori, Mitaka, JP;
Tokyo Kikai Seisakusho, Ltd., , JP;
Abstract
In a rotary press intended to perform the synchronous control of driving means with high precision, quickly stabilize rotation, and reduce spoilage caused by phase shifts, comprising a plurality of printing mechanisms in which driving means M rotate N turns while plate cylinders P rotate one turn, so that printing images can be printed on a paper web sequentially passing through each printing mechanism in such a manner that the printing images are matched with a predetermined reference, in which a control section replaces the rotational phase of the plate cylinder with the rotational phase of the driving means M corresponding to that rotational phase so as to match the printing images with a predetermined reference, converts a shift between the rotational phase of the driving means M for matching and the rotational phase of the driving means M in a normal state into the number of outputs of the first pulse signals, set it as a correction value, and obtains a virtual feedback value by shifting the rotational phase of the driving means M by the amount of the correction value, so that control is accomplished by synchronizing the driving reference phase with the virtual feedback phase of the driving means M.