公开(公告)号：EP1010530A3

公开(公告)日：2000-07-12

申请号：EP00200699.7

申请日：1996-05-03

申请人： BALDWIN WEB CONTROLS (A DIVISION OF BALDWIN GRAPHIC SYSTEMS, INC.)

发明人： Callan, Ronald ,  Gregory, Michael ,  Drensky, Steve

IPC分类号： B41F33/00

CPC分类号： B41F33/00 ,  B41F33/18 ,  B41P2233/20 ,  B41P2233/23

摘要： A system and method for preventing a broken printing web (30) from wrapping about or otherwise fouling the blanket cylinders of printing press units. The system and method includes a web tensioning device located downstream of the printing press units (10A-10D) for maintaining tension upon a broken web (30) and pulling the web from the printing press units. The device includes a plurality of web disturbance detectors (15) for detecting a wave, ripple or other disturbance indicative of a web break. A pair of anti-wrap rollers (50) located above and below the web are engaged upon detection of a web break to engage the web between them to exert tension onto the web and pull it from the printing units. The anti-wrap rollers are rotated at a surface speed nominally greater than the surface speed of the printing rolls (5). The anti-wrap rollers (50) include a plurality of opposed peak and valley portions which enable them to interlock and grip the web along a line of contact. The system and method also includes a flow bar system to reduce false detections of a web break . A blow-down bar is also used to force air, or some other fluid, downward on a broken web so as to harmlessly force the broken web to the ground as it exits the web tensioning device. A series of sensors (340) which projects two beams in the form of a crossing pattern are utilized to more rapidly and accurately detect a web break.

公开(公告)号：EP0741033A2

公开(公告)日：1996-11-06

申请号：EP96201226.6

申请日：1996-05-03

申请人： BALDWIN WEB CONTROLS (A DIVISION OF BALDWIN GRAPHIC SYSTEMS, INC.)

发明人： Callan, Ronald ,  Gregory, Michael ,  Drensky, Steve

IPC分类号： B41F33/00

CPC分类号： B41F33/00 ,  B41F33/18 ,  B41P2233/20 ,  B41P2233/23

摘要： A system and method for preventing a broken printing web from wrapping about or otherwise fouling the blanket cylinders of printing press units. The system and method includes a web tensioning device located downstream of the printing press units for maintaining tension upon a broken web and pulling the web from the printing press units. The device includes a plurality of web disturbance detectors for detecting a wave, ripple or other disturbance indicative of a web break. A pair of anti-wrap rollers located above and below the web are engaged upon detection of a web break to engage the web between them to exert tension onto the web and pull it from the printing units. The anti-wrap rollers are rotated at a surface speed nominally greater than the surface speed of the printing rolls. The anti-wrap rollers include a plurality of opposed peak and valley portions which enable them to interlock and grip the web along a line of contact. The system and method also includes a flow bar system to reduce false detections of a web break. A blow-down bar is also used to force air, or some other fluid, downward on a broken web so as to harmlessly force the broken web to the ground as it exits the web tensioning device. A series of sensors which project two beams in the form of a crossing pattern are utilized to more rapidly and accurately detect a web break.

摘要翻译： 一种用于防止破碎的印刷织物围绕或以其他方式污染印刷机单元的橡皮布滚筒的系统和方法。 该系统和方法包括位于印刷机单元下游的卷筒纸张紧装置，用于保持断纸的张力并从印刷机单元牵引纸幅。 该装置包括多个卷筒纸扰动检测器，用于检测指示卷筒纸断裂的波纹，纹波或其它干扰。 位于纸幅上方和下方的一对防缠绕辊在检测到纸幅断裂时被接合，以将纸幅与它们之间接合，以对纸幅施加张力并将其从打印单元拉出。 防缠绕辊以名义上大于印刷辊的表面速度的表面速度旋转。 防缠绕辊包括多个相对的峰和谷部分，使得它们能够沿着接触线互锁和夹持幅材。 该系统和方法还包括一个流动条系统，以减少卷筒纸断裂的错误检测。 还可以使用排气杆将空气或一些其它流体向下压在破碎的腹板上，从而当破碎的腹板离开腹板张紧装置时将其破坏的纸幅无害地强迫。 利用以交叉图案形式投影两个光束的一系列传感器，以更快速和准确地检测卷筒纸断裂。

公开(公告)号：EP0616966B1

公开(公告)日：1998-04-29

申请号：EP93203609.8

申请日：1993-12-21

申请人： BALDWIN WEB CONTROLS (A DIVISION OF BALDWIN GRAPHIC SYSTEMS, INC.)

发明人： Pavliny, Mark ,  Lewandowski, Edward ,  Lawrence, William ,  Gregory, Michael ,  Ozers, Guntis

IPC分类号： B65H33/18

CPC分类号： B41F33/18 ,  B41P2233/23

公开(公告)号：EP0741033B1

公开(公告)日：2000-09-06

申请号：EP96201226.6

申请日：1996-05-03

申请人： BALDWIN WEB CONTROLS (A DIVISION OF BALDWIN GRAPHIC SYSTEMS, INC.)

发明人： Callan, Ronald ,  Gregory, Michael ,  Drensky, Steve

IPC分类号： B41F33/00 ,  B41F33/18

CPC分类号： B41F33/00 ,  B41F33/18 ,  B41P2233/20 ,  B41P2233/23

公开(公告)号：EP0741033A3

公开(公告)日：1997-06-25

申请号：EP96201226.6

申请日：1996-05-03

申请人： BALDWIN WEB CONTROLS (A DIVISION OF BALDWIN GRAPHIC SYSTEMS, INC.)

发明人： Callan, Ronald ,  Gregory, Michael ,  Drensky, Steve

IPC分类号： B41F33/00

CPC分类号： B41F33/00 ,  B41F33/18 ,  B41P2233/20 ,  B41P2233/23

摘要： A system and method for preventing a broken printing web from wrapping about or otherwise fouling the blanket cylinders of printing press units. The system and method includes a web tensioning device located downstream of the printing press units for maintaining tension upon a broken web and pulling the web from the printing press units. The device includes a plurality of web disturbance detectors for detecting a wave, ripple or other disturbance indicative of a web break. A pair of anti-wrap rollers located above and below the web are engaged upon detection of a web break to engage the web between them to exert tension onto the web and pull it from the printing units. The anti-wrap rollers are rotated at a surface speed nominally greater than the surface speed of the printing rolls. The anti-wrap rollers include a plurality of opposed peak and valley portions which enable them to interlock and grip the web along a line of contact. The system and method also includes a flow bar system to reduce false detections of a web break. A blow-down bar is also used to force air, or some other fluid, downward on a broken web so as to harmlessly force the broken web to the ground as it exits the web tensioning device. A series of sensors which project two beams in the form of a crossing pattern are utilized to more rapidly and accurately detect a web break.

公开(公告)号：EP1010530A2

公开(公告)日：2000-06-21

申请号：EP00200699.7

申请日：1996-05-03

申请人： BALDWIN WEB CONTROLS (A DIVISION OF BALDWIN GRAPHIC SYSTEMS, INC.)

发明人： Callan, Ronald ,  Gregory, Michael ,  Drensky, Steve

IPC分类号： B41F33/00

CPC分类号： B41F33/00 ,  B41F33/18 ,  B41P2233/20 ,  B41P2233/23

摘要： A system and method for preventing a broken printing web (30) from wrapping about or otherwise fouling the blanket cylinders of printing press units. The system and method includes a web tensioning device located downstream of the printing press units (10A-10D) for maintaining tension upon a broken web (30) and pulling the web from the printing press units. The device includes a plurality of web disturbance detectors (15) for detecting a wave, ripple or other disturbance indicative of a web break. A pair of anti-wrap rollers (50) located above and below the web are engaged upon detection of a web break to engage the web between them to exert tension onto the web and pull it from the printing units. The anti-wrap rollers are rotated at a surface speed nominally greater than the surface speed of the printing rolls (5). The anti-wrap rollers (50) include a plurality of opposed peak and valley portions which enable them to interlock and grip the web along a line of contact. The system and method also includes a flow bar system to reduce false detections of a web break . A blow-down bar is also used to force air, or some other fluid, downward on a broken web so as to harmlessly force the broken web to the ground as it exits the web tensioning device. A series of sensors (340) which projects two beams in the form of a crossing pattern are utilized to more rapidly and accurately detect a web break.

摘要翻译： 一种用于防止破损的印刷网（30）缠绕印刷机单元的橡皮布滚筒或以其他方式污染印刷机单元的橡皮布滚筒的系统和方法。 该系统和方法包括位于印刷机单元（10A-10D）下游的幅材张紧装置，用于保持破碎的幅材（30）上的张力并将幅材从印刷机单元拉出。 该装置包括多个卷筒纸干扰检测器（15），用于检测指示卷筒纸断裂的波纹，波纹或其他干扰。 位于卷筒纸上方和下方的一对防缠绕辊（50）在检测到卷筒纸断裂时啮合，以使卷筒纸在它们之间啮合，以将张力施加到卷筒纸上并将其从印刷单元中拉出。 防缠绕辊以名义上大于印刷辊（5）的表面速度的表面速度旋转。 防缠绕辊（50）包括多个相对的峰部和谷部，这些峰部和谷部使得它们能够沿着接触线互锁和夹持纤维网。 该系统和方法还包括流动条系统以减少对网络中断的错误检测。 还使用排污杆来迫使空气或一些其他流体向下在破碎的纸幅上，以便在破碎的纸幅离开纸幅张紧装置时无害地将破碎的纸幅压向地面。 利用以交叉图案的形式投射两个光束的一系列传感器（340）来更快速和准确地检测卷筒纸断裂。

公开(公告)号：EP0616966A1

公开(公告)日：1994-09-28

申请号：EP93203609.8

申请日：1993-12-21

申请人： BALDWIN WEB CONTROLS (A DIVISION OF BALDWIN GRAPHIC SYSTEMS, INC.)

发明人： Pavliny, Mark ,  Lewandowski, Edward ,  Lawrence, William ,  Gregory, Michael ,  Ozers, Guntis

IPC分类号： B65H33/18

CPC分类号： B41F33/18 ,  B41P2233/23

摘要： A system and method for preventing a broken printing web from wrapping about or otherwise fouling the blanket cylinders of printing press units. The system and method includes a web tensioning device located downstream of the printing press units for maintaining tension upon a broken web and pulling the web from the printing press units. The device includes a plurality of web disturbance detectors for detecting a wave, ripple or other disturbance indicative of a web break. A pair of anti-wrap rollers located above and below the web are engaged upon detection of a web break to engage the web between them to exert tension onto the web and pull it from the printing units. The anti-wrap rollers are rotated at a surface speed nominally greater than the surface speed of the printing rolls. The anti-wrap rollers include a plurality of opposed peak and valley portions which enable them to interlock and grip the web along a line of contact.

摘要翻译： 一种用于防止破碎的印刷织物围绕或以其他方式污染印刷机单元的橡皮布滚筒的系统和方法。 该系统和方法包括位于印刷机单元下游的卷筒纸张紧装置，用于保持断纸的张力并从印刷机单元牵引纸幅。 该装置包括多个卷筒纸扰动检测器，用于检测指示卷筒纸断裂的波纹，纹波或其它干扰。 位于纸幅上方和下方的一对防缠绕辊在检测到纸幅断裂时被接合，以将纸幅与它们之间接合，以对纸幅施加张力并将其从打印单元拉出。 防缠绕辊以名义上大于印刷辊的表面速度的表面速度旋转。 防缠绕辊包括多个相对的峰和谷部分，使得它们能够沿着接触线互锁和夹持幅材。