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44 条记录 (耗时 0.02 秒)

    AN ADJUSTABLE MATTE FOR HANDLING SHEETS IN A PRINTING PRESS AND METHOD OF USING SAME
    21.
    发明公开
    AN ADJUSTABLE MATTE FOR HANDLING SHEETS IN A PRINTING PRESS AND METHOD OF USING SAME 审中-公开
    可调节的COVER FOR在印刷机搬运负债表及其使用方法的

    公开(公告)号：EP1263591A2

    公开(公告)日：2002-12-11

    申请号：EP01916411.0

    申请日：2001-03-05

    申请人： Baldwin Graphic Systems, Inc.

    发明人： GASPARRINI, Charles, R. ,  MARGANSKI, Edward, E. ,  RUBIN, Richard, P. ,  RUCH, Robert, L.

    IPC分类号： B41F22/00

    CPC分类号： B41F21/10 ,  B41F21/00 ,  B41F22/00

    摘要： An apparatus for facilitating handling of sheets in a sheet-fed printing press (155) comprising a matte (130) that is mountable on a cylinder (100). The matte has at least one inflatable pocket (125) for cushioning sheets of printable material as they are passed between two cylinders of the press. At least one valve (135) communicates with the inflatable pocket and controls the quantity of fluid in the inflatable pocket. A number of inflatable pockets can be utilized to provide increased control over various sheet sizes. Further control may be obtained by including a number of valves to independently operate each of the inflatable pockets. Ease of installation and removal is accomplished by incorporated mounting holes along the long axis of the matte. Alternatively, the matte may be arranged on the cylinder by adhesively bonding (tape or glue) the matte to the surface of the cylinder or by arranging the matte on the cylinder with Velcro fasteners. A number of mattes may be combined to form a compound matte resulting in greater resolution and precision. Methods for making as well as using the apparatus are also disclosed.

    A NON-CONTACT SHEET HANDLING SYSTEM AND A METHOD OF USING SAME
    25.
    发明公开
    A NON-CONTACT SHEET HANDLING SYSTEM AND A METHOD OF USING SAME 审中-公开
    DEVICE桑叶非接触式搬运

    公开(公告)号：EP1021366A1

    公开(公告)日：2000-07-26

    申请号：EP99938878.8

    申请日：1999-08-05

    申请人： Baldwin Graphic Systems, Inc.

    发明人： CROSBY, John, D. ,  GARLIN, Tomas, P. ,  GASPARRINI, C., Robert

    IPC分类号： B65H29/32

    CPC分类号： B65H5/228

    摘要： A non-contact sheet handling system (100) includes a first valve (110) controlling air flow to a manifold (104) and a second valve (112) controlling air flow from the manifold to an air pan (106). A non-contact plate (107) having venturis (202) covers the air pan. In an alternate embodiment, the system includes a diffuser (302a) that diffuses air flow in the air pan. A method of using a non-contact sheet handling system includes adjusting a first and second valve (112, 114) to set air flow to a first and second area, respectively, of the system and adjusting a third valve (110) to set air flow to the first and second valves.

    Improved anti-wrap device for a web press
    27.
    发明公开
    Improved anti-wrap device for a web press 失效
    改进了卷筒印刷机的防缠绕装置

    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。

    Anti-wrap device for a web press
    30.
    发明公开
    Anti-wrap device for a web press 失效
    Vorrichtung zum Verhindern des Aufwickelns在Bahndruckmaschinen。

    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。