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公开(公告)号：EP0756543A4
公开(公告)日：1998-02-04
申请号：EP96902670
申请日：1996-01-16
发明人： SEITZ DAVID R , WOODS CURTIS , THOMAS MATTHEW A
CPC分类号： H04N1/0678 , B41C1/04 , H04N1/047 , H04N1/06 , H04N2201/02416 , H04N2201/02439 , H04N2201/03158 , H04N2201/042 , H04N2201/0471 , H04N2201/0472 , H04N2201/04729 , H04N2201/04734 , H04N2201/04755 , H04N2201/04767 , H04N2201/04791 , H04N2201/04794
摘要： A cylindrical engraving system selectively able to engrave either in a helical or circumferential format. An encoder scans index markings on the surface of a cylinder being engraved and generates timing pulses for selective application to one or the other of a helical drive unit or a circumferential drive unit incorporated within the system controller, Engraving is performed by an engraving head which is stepped in the axial direction along the workpiece in response to step pulses generated by the selected drive unit. The step pulses may be generated in spaced bursts or at a regular frequency depending upon whether circumferential or helical driving has been selected.
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公开(公告)号：EP0812269A1
公开(公告)日：1997-12-17
申请号：EP96905211.0
申请日：1996-01-29
CPC分类号： B23Q7/005 , B23B31/1622 , B23B2270/14 , B23Q1/76 , B41C1/02 , B41C1/045 , B41C1/18 , B44B3/009 , B44B3/04 , B44B3/065 , H04N1/06 , H04N2201/0442 , Y10T409/30224 , Y10T409/305656 , Y10T409/30868
摘要： An automatic self-centering chuck system for use on an engraver. The chuck system includes a plurality of jaws which are slidably mounted for movement in a radial direction toward a central aperture of the chuck to clamp a shaft for an engraving cylinder. Each of the jaws (102) is actuated for movement by a lever (132) pivotally mounted within the chuck. The levers (132) are actuated for pivotal movement by an axially reciprocating drawbar (64) which is energized for movement by a series of pneumatic cylinders. The components of the chuck are accurately machined to provide close tolerance, precise movements of the jaws (102) whereby a cylinder (24) will be accurately positioned at the central rotational axis of the chuck. In order to ensure that the precise level of jaw movement is maintained throughout the life of the chuck, a lubricant flushing or purging system is provided for flushing normal wear particles from the precision components internal to the chuck.
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公开(公告)号：EP0754386A1
公开(公告)日：1997-01-22
申请号：EP95914190.0
申请日：1995-03-24
发明人： BECKETT, Tony, D.
摘要： This invention relates to a method and apparatus for linearizing engraving cells (11) to be engraved in order to adjust for visual discontinuities. An engraver (20) for engraving a cylinder (24) comprises a controller (26) having data stored therein. The data generally corresponds to at least one line of cells to be engraved on the cylinder (24). The engraver (20) also comprises an engraving head (22) coupled to the controller (26) and operatively mounted in the engraver (20). The engraver (20) further comprises means located in the controller (26) for using filter criteria to selectively filter and linearize the data so that the controller (26) can subsequently energize the engraving head (22) to engrave the at least one line of cells so that it appears continuous. A method for engraving the cells comprises the steps of examining present pixel data associated with a line of cells to be engraved; determining whether the present pixel data should be linearized; and selectively linearizing the present pixel data if it is determined that the present pixel data should be linearized.
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公开(公告)号：EP0714577A1
公开(公告)日：1996-06-05
申请号：EP94924056.0
申请日：1994-07-29
IPC分类号： B41C1
CPC分类号： B41C1/045 , Y10T29/50 , Y10T279/17821 , Y10T409/303584 , Y10T409/50082 , Y10T409/50164
摘要： An engraving head (18) supporting a cartridge-type diamond stylus (22) is provided having a trapezoidal cross section for facilitating positive positioning of the stylus (22) within the engraving head (18). In another aspect of the invention, a self-aligning shoe tool (26) includes two omni-directional convex diamonds (68, 70) located in spaced relation to each other and mounted for pivotal movement relative to a support arm (62) to facilitate alignment of the shoe tool (26) relative to a cylinder surface to be engraved. In yet another aspect of the invention, a burr cutter (28) includes a curved cutting edge (126) to facilitate tangential contact with the cylinder surface.
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公开(公告)号：EP0710550A3
公开(公告)日：1996-06-05
申请号：EP95117413.5
申请日：1995-11-06
发明人： Buechler, Lester W.
IPC分类号： B41C1/045
摘要： An engraving head apparatus and method for engraving a gravure cylinder. The engraving head apparatus including a magnetostrictive actuator formed from TERFENOL-D™ which elongatably drives a diamond-tipped stylus arm in a reciprocal manner in response to a varying magnetic field created by a bias coil and a drive coil. The bias coil establishes a DC biasing magnetic field which causes an initial expansion of the actuator to approximately one-half the total linear expansion limit of the actuator. The drive coil is concentrically interposed between the actuator and the bias coil and modulates the magnetic field intensity established by the bias coil to cause additional expansion and contraction of the actuator about the initial expansion point.
摘要翻译： 雕刻凹版滚筒的雕刻头装置和方法。 该雕刻头设备包括由TERFENOL-D TM形成的磁致伸缩致动器，该TERFENOL-D TM响应于由偏置线圈和驱动线圈产生的变化的磁场以可逆方式可伸长地驱动金刚石尖触针臂。 偏置线圈建立直流偏置磁场，其导致致动器的初始扩展大约为致动器总线性扩展极限的一半。 驱动线圈同心地介于致动器和偏置线圈之间，并且调制由偏置线圈建立的磁场强度以引起致动器围绕初始扩展点的附加扩展和收缩。
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公开(公告)号：EP0710167A4
公开(公告)日：1998-02-25
申请号：EP94922443
申请日：1994-06-20
CPC分类号： B24B41/063 , B23B23/02 , B23B2260/072 , B44B3/04 , B44B3/065 , Y10T82/2562 , Y10T82/2564 , Y10T82/2568
摘要： A universal cylinder mount (22, 24) for mounting a plurality of cylinders (16) between a headstock (12) and a tailstock (14) of an engraver (10). The cylinders (16) have a mounting aperture (26) at each end (28, 30) adapted to receive a universal cylinder mount (22, 24) associated with each of the headstock (12) and tailstock (14). The universal cylinder mount (22, 24) is adapted to accommodate a plurality of mounting apertures (26) formed with different sizes and having various sloped walls for facilitating alignment and frictional gripping engagement of the cylinders (16).
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公开(公告)号：EP0776271A1
公开(公告)日：1997-06-04
申请号：EP95929537.0
申请日：1995-08-15
发明人： IZOR, Kim, E.
CPC分类号： B23B31/1622 , B23B2270/14 , B23Q1/76 , B23Q7/005 , B41C1/02 , B41C1/045 , B41C1/18 , B44B3/009 , B44B3/04 , B44B3/065 , H04N1/06 , H04N2201/0442 , Y10T409/30224 , Y10T409/305656 , Y10T409/30868
摘要： A method and apparatus for automated loading and unloading of a cylinder (114) in an engraver (110) which permit the engraver (110) to accommodate cylinders (114) of differing geometries, including a range of lengths, diameters, and mounting configurations. The engraver (110) includes a headstock (116) and tailstock (118) which rotatably support a cylinder (114) at an engraving station (115) in the engraver (110), and a cylinder handling system having at least one cylinder (114) and support (130) for supporting the cylinder between the headstock (116) and tailstock (118) during loading and unloading of the cylinder (114). In one form, the cylinder supports (130) each have a telescoping support member having a support nest for engaging and supporting the cylinder (114) at the engraving station (115). In another form, the cylinder supports (130) each have a support housing and support structure mounted to the support housing, the support structure including at least one cylinder receiving area, selection being possible between plural cylinder receiving areas for receiving cylinders (114) of different dimensions.
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公开(公告)号：EP0756543A1
公开(公告)日：1997-02-05
申请号：EP96902670.0
申请日：1996-01-16
CPC分类号： H04N1/0678 , B41C1/04 , H04N1/047 , H04N1/06 , H04N2201/02416 , H04N2201/02439 , H04N2201/03158 , H04N2201/042 , H04N2201/0471 , H04N2201/0472 , H04N2201/04729 , H04N2201/04734 , H04N2201/04755 , H04N2201/04767 , H04N2201/04791 , H04N2201/04794
摘要： A cylindrical engraving system selectively able to engrave either in a helical or circumferential format. An encoder scans index markings on the surface of a cylinder being engraved and generates timing pulses for selective application to one or the other of a helical drive unit or a circumferential drive unit incorporated within the system controller, Engraving is performed by an engraving head which is stepped in the axial direction along the workpiece in response to step pulses generated by the selected drive unit. The step pulses may be generated in spaced bursts or at a regular frequency depending upon whether circumferential or helical driving has been selected.
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公开(公告)号：EP0712557A4
公开(公告)日：1996-08-28
申请号：EP94923217
申请日：1994-06-20
发明人： SEITZ DAVID R , STUVE JULI ANN
CPC分类号： B41F33/0027 , B41F31/00 , B41P2233/30
摘要： This invention relates to a system and method for managing ink. The system and method comprises an ink volume determination for determining the amount of ink to be applied by the printer. The ink volume determination comprises the steps of generating a composite cylinder layout of at least one image for the engraved cylinder (25), generating a set of data corresponding to the composite cylinder layout (28) and then using the set of data to determine the volume of ink (29-34). The printer is then filled with a volume of ink related to this calculated ink volume during a printing process (39). The method of determining ink volume may be used independently of the printing process, for example, in order to control or manage the amount of ink used in the printing press.
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公开(公告)号：EP0697156A1
公开(公告)日：1996-02-21
申请号：EP94916059.0
申请日：1994-05-04
发明人： BORNHORST, Kenneth, F., Jr. , LIKINS, Robert, D. , EICHHORN, Thomas, J. , SEITZ, David, R. , WOODS, Curtis
CPC分类号： B23Q7/005 , B23B31/1622 , B23B2270/14 , B23Q1/76 , B41C1/02 , B41C1/045 , B41C1/18 , B44B3/009 , B44B3/04 , B44B3/065 , H04N1/06 , H04N2201/0442 , Y10T408/50 , Y10T409/30224 , Y10T409/303808 , Y10T409/305656 , Y10T409/30868
摘要： A method and apparatus for automated loading and unloading of a cylinder (14) in an engraver (10). The method and apparatus permit the engraver (10) to accommodate cylinders (14) of differing geometries, including a range of lengths, diameters and mounting configurations. The engraver (10) comprises a headstock (16) and a tailstock (18) which cooperate to rotatably support a cylinder (14) at an engraving station (15) in the engraver (10). The engraver (10) also comprises a cylinder handling system having at least one cylinder support (30) for supporting the cylinder (14) between the headstock (16) and tailstock (18) during loading and unloading of the cylinder (14). The cylinder handling system comprises a driver (32) for driving the cylinder support (30) towards and away from the engraving station until the headstock (16) and tailstock (18) engage and rotatably support the cylinder (14). Once the cylinder (14) is rotatably supported between the headstock (16) and tailstock (18), then the cylinder support (30) is retracted. Each cylinder support (30) comprises a telescoping support member (34) having a support nest (36) for engaging and supporting the cylinder (14) at the engraving station (15).
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