公开(公告)号：EP0561884B1

公开(公告)日：1995-11-02

申请号：EP92900504.9

申请日：1991-12-11

申请人： ANDREASSON, Bengt

发明人： ANDREASSON, Bengt

IPC分类号： B65H23/192 ,  B65H77/00

CPC分类号： B65H23/192 ,  B65H2513/21 ,  B65H2513/22 ,  B65H2515/31 ,  B65H2220/02 ,  B65H2220/01

摘要： A method and an apparatus provided to calculate and control the elongation in a running web (16), e.g. in connection with a preparation of a web in a printing machine. In connection with at least an increase or decrease in the web tension, the length change in a reference length of the web material is measured, and by means of web tension meters the web tension before and after the web tension change (σ1-σ2) or each one of the web tension alterations is determined. The tension-free length (no) of the reference length is also calculated and if it is needed, the elongation of the web is corrected through an increase or a decrease in the web tension depending on said measurements.

公开(公告)号：EP0561884A1

公开(公告)日：1993-09-29

申请号：EP92900504.0

申请日：1991-12-11

申请人： ANDREASSON, Bengt

发明人： ANDREASSON, Bengt

IPC分类号： B65H23

CPC分类号： B65H23/192 ,  B65H2513/21 ,  B65H2513/22 ,  B65H2515/31 ,  B65H2220/02 ,  B65H2220/01

摘要： L'invention se rapporte à un procédé et à un dispositif servant à calculer et à commander l'allongement d'une bande en déplacement (16) s'utilisant, par exemple, pour préparer une bande de papier dans une machine d'imprimerie. On mesure le changement de longueur d'une longueur de référence de la bande, par rapport à, au moins, une augmentation ou une diminution de la tension de la bande et on détermine la tension de la bande avant et après le changement de tension (sigma1-sigma2) ou bien chacune des modifications de la tension de la bande, au moyen d'un extensomètre. On calcule également la longueur (no) sans tension de la longueur de référence et, si nécessaire, on corrige l'allongement de la bande au moyen d'une augmentation ou d'une diminution de la tension de la bande en fonction desdites mesures.

公开(公告)号：EP0690819B1

公开(公告)日：1998-06-10

申请号：EP94907757.2

申请日：1994-02-15

申请人： ANDREASSON, Bengt

发明人： ANDREASSON, Bengt

IPC分类号： B65H19/18

CPC分类号： B65H19/1868 ,  B65H19/1815 ,  B65H19/1889 ,  B65H23/06 ,  B65H2408/2411

摘要： Roll stand for feeding paperweb to i.e. a printing press comprising a rotating reel (1) for a first roll (8), from which a web is fed, and a second roll (11), which is to replace the first roll (8) when its diameter has decreased to a previously determined value, and also comprising means for splicing of the expiring web (9) to the replacement roll (11), and means for cutting said web (9). The roll stand (1) comprises two roll spindles (7.1, 7.2). Each spindle (7.1, 7.2) is connected to an acceleration motor (16) by a free-wheel drive transmission (10) in a first frame end section (2), preferably arranged in direct connection to each spindle (7.1, 7.2).

公开(公告)号：EP0690819A1

公开(公告)日：1996-01-10

申请号：EP94907757.0

申请日：1994-02-15

申请人： ANDREASSON, Bengt

发明人： ANDREASSON, Bengt

IPC分类号： B65H19 ,  B65H23

CPC分类号： B65H19/1868 ,  B65H19/1815 ,  B65H19/1889 ,  B65H23/06 ,  B65H2408/2411

摘要： Roll stand for feeding paperweb to i.e. a printing press comprising a rotating reel (1) for a first roll (8), from which a web is fed, and a second roll (11), which is to replace the first roll (8) when its diameter has decreased to a previously determined value, and also comprising means for splicing of the expiring web (9) to the replacement roll (11), and means for cutting said web (9). The roll stand (1) comprises two roll spindles (7.1, 7.2). Each spindle (7.1, 7.2) is connected to an acceleration motor (16) by a free-wheel drive transmission (10) in a first frame end section (2), preferably arranged in direct connection to each spindle (7.1, 7.2).