Title:
輪転印刷機におけるウエブ搬送時の障害を検出する方法
Document Type and Number:
Japanese Patent JP4063898
Kind Code:
B2
Abstract:
A method for detecting disruptions in the transport of a web in a rotary printing press. A speed evaluation is performed on the web and then analyzed, including a comparison of a contactless measurement of the instantaneous speed (VPAP(t)) of the web with a speed selected from the group of speeds of the web consisting of: 1. a virtual speed (VVIRT(t) which is evaluated from the mechanical speed of the press, 2. an average speed (VAVE(t)) measured during a time before the last measurement, and 3. a speed (VPAP (tk-1)) measured at the moment immediately before the moment when an instantaneous speed (VPAP(tk)) is measured. The analysis is performed to obtain a respective speed difference, and to compare the respective speed difference with a respective prescribed threshold value. If the speed difference is not within the threshold value, a signal is generated which indicates that the web is not traveling at the proper speed.
Inventors:
Pierre Oinan
Alan Blanchard
Alan Blanchard
Application Number:
JP11934696A
Publication Date:
March 19, 2008
Filing Date:
May 14, 1996
Export Citation:
Assignee:
Goss International Montataire,S.A
International Classes:
B41F33/06; B41F33/14; B41F33/18; B65H26/02; B65H43/00
Domestic Patent References:
| JP3010259U | ||||
| JP3239547A | ||||
| JP61196030U |
Foreign References:
| DE4130679A1 | ||||
| DE4441864A1 |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard