USRE36977E - Apparatus and method for attaching a flexible printing plate - Google Patents
Apparatus and method for attaching a flexible printing plate Download PDFInfo
- Publication number
- USRE36977E USRE36977E US09/268,091 US26809199A USRE36977E US RE36977 E USRE36977 E US RE36977E US 26809199 A US26809199 A US 26809199A US RE36977 E USRE36977 E US RE36977E
- Authority
- US
- United States
- Prior art keywords
- iaddend
- iadd
- cylinder
- printing plate
- flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims 3
- 230000037452 priming Effects 0.000 claims abstract description 14
- 230000004913 activation Effects 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims 3
- 238000004804 winding Methods 0.000 claims 3
- 102000004315 Forkhead Transcription Factors Human genes 0.000 description 2
- 108090000852 Forkhead Transcription Factors Proteins 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
- B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
- B41F27/125—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end on a curvilinear path, e.g. by winding on a roll
Definitions
- the present invention relates to a device for attaching a flexible printing plate to the form cylinder of a printing machine.
- European Patent Document No. EP 534 579 A2 discloses a plate clamping device, in which the form cylinder has a cylinder groove running in the axial direction, one edge of which carries the leading flange of the plate. Furthermore, the cylinder groove contains a rotatable spindle, to which U-shaped leaf springs are mounted across the width of the form cylinder. One leg of the leaf springs is bent into a hook shape and engages with and grips, when the spindle is turned, the correspondingly hook-shaped tailing flange of the plate. The other leg of the springs presses the leading flange of the plate against the wall of the cylinder groove. In this device, however, the leading flange of the plate is not held securely in place on the wall of the cylinder groove.
- the printing plate clamp of the present invention securely attaches a flexible printing plate to the form cylinder of the printing machine.
- the device of the present invention not only secures the leading flange of the plate on to the wall of the cylinder groove, but also grasps and clamps the leading flange and draws it into the cylinder groove. Consequently, the leading edge of the plate is drawn onto the edge of the cylinder groove in the correct position.
- the printing plate Before being wound around the form cylinder, the printing plate is positioned on the cylinder parallel to the edge of the groove.
- FIG. 1 is a cross-sectional drawing of a preferred embodiment of the printing plate clamping device of the present invention in the open position;
- FIG. 2 is a cross-sectional drawing of the printing plate clamping device shown in FIG. 1 in the clamped or closed position;
- FIG. 3 is a side view of a preferred embodiment of an activating lever which is used to rotate the printing plate clamping device of the present invention
- FIG. 4 is a cross-sectional drawing of a second embodiment of the printing plate clamping device of the present invention in the closed position
- FIG. 5 is a view of the trailing flange and leaf springs of the printing plate clamping device shown in FIG. 4 as viewed in the direction of arrow Z.
- the form cylinder 1 shown in cross-section in FIG. 1 has a cylinder groove 2 extending axially from its surface.
- a groove wall 3 extends at an acute angle relative to the outer surface of the cylinder 1 and forms an edge 4 at the surface of the cylinder 1 on which the leading flange 5 of the printing plate 6 is held.
- a clamping spindle 7 which is rotatably mounted at its ends (one end of which is shown in FIG. 3) within the cylinder groove 2.
- Multiple leaf springs 8 are fixedly mounted to the clamp spindle 7, such as, for example, by bolts.
- the multiple leaf springs 8 are preferably substantially hook-shaped in cross-section with a curve of about 90° and are distributed or extend across at least a portion of the width of the printing plate 6 to be clamped, preferably along the entire width of the printing plate 6.
- the leaf springs 8 are shaped so as to engage with or grip the end of the trailing flange 9 of the printing plate 6 which is also hook-shaped with a curve of about 90° along at least a portion of its width, preferably along its entire width.
- a single continuous leaf spring extending across the width of the printing plate can alternatively be used.
- the clamping spindle 7 has a protruding gripper edge 10, which, as shown in FIG. 2, clamps against and grips a V-shaped chamfer 11 on the leading flange 5 of the printing plate 6.
- At least one of the two ends of the clamping spindle 7 is connected to a mechanism which rotates the clamping spindle 7 within the cylinder groove 2 of the form cylinder 1.
- a preferred embodiment of such a mechanism is shown in FIG. 3, in which one end of the clamping spindle 7 is connected to a lever 12, which is hingedly connected to a spring-deflectable pivoted lever 13.
- the pivoted lever 13 is comprised of a rod 14, onto which a fork head 16 can be deflected against the force of a pressure spring 15.
- the pivoted lever 13 is mounted within a bore of roller 17 which is rotatably mounted in an abutment 18, thereby permitting pivoted lever 13 to rotate. Furthermore, the pivoted lever 13 presses with its spring-loaded fork head 16 against a bolt 19 mounted to the lever 12.
- the clamping spindle 7 To mount the printing plate 6 on to the form cylinder 1, the clamping spindle 7 first assumes the position shown in FIG. 1, and the corresponding positions of the levers 12 and 13, which activate the clamping spindle 7, are as shown in FIG. 3. The pivoted lever 13 thereby presses the lever 12 into a stop position. In the preferred embodiment shown in FIG. 3, the lever 12 stops adjacent the journal 20 of the form cylinder 1. At this position of lever 12, the printing plate 6 is suspended by its leading flange 5 on the edge 4 of the cylinder groove 2. The clamping spindle 7 is then rotated to the position shown in FIG. 2.
- lever 12 and the pivoted lever 13 are moved into their extended position (i.e., past the position in which their pivot points are aligned and further in this direction) until the gripper edge 10 rests against the chamfer 11 of the printing plate 6 and the clamping force thereby supplied counteracts the pressure force exerted by the clamping lever 13.
- activation movement of lever 12 is not limited by any kind of stop. .Iaddend.
- the front edge of the printing plate 6 is thereby oriented exactly parallel to the edge 4 of the cylinder groove 2.
- both the leading and the trailing flanges 5, 9 are clamped and gripped under the force of the pressure spring 15 (i.e., the clamping spindle 7 turns until the clamping forces on the flanges 5, 9 counteract the spring force of the pivoted lever 13).
- the clamping spindle 7 is turned into the position shown in FIG. 1.
- the trailing flange 9, is then removed from the cylinder groove 2, the printing plate 6 is unwound from the form cylinder 1 through the backwards rotation of the form cylinder 1, and the printing plate 6 is lifted out of the cylinder groove 2 by its leading flange 5.
- the clamping spindle 7 is turned in one direction or the other by the application of a force F1 or F2 to the lever 12 on one side or the other of its pivot point, as shown in FIG. 3.
- Force F1 is used to close the clamping spindle 7 while force F2 is used to open the clamping spindle 7.
- Such forces can be supplied, for example, by working cylinders mounted in the frame.
- the device of the present invention is particularly suitable for automatic plate changes.
- the chamfer 11 of the leading flange 5 is formed with a V-shaped cross-section.
- One side of the chamfer 11 is thus well-suited for clamping by the gripper edge 10, while the other side advantageously rests on a groove wall 3 within cylinder groove 2.
- the chamfer 11 may have other shapes, such as, for example, a U-shape.
- the leading flange 5 may have knobs with which the gripper edge 10 engages.
- the leading flange 5 may also have slots, which run in the axial direction of the cylinder 1 and in the area of which the printing plate 6 is curved out toward the clamping spindle 7, so as to form gripper elements.
- the trailing flange 21 of the printing plate 22 has rectangular apertures 24 formed proximate the edge of trailing flange 21 across at least a portion of its width, preferably along its entire width.
- Hook-shaped leaf springs 25 of the clamp spindle 26 are shaped, sized and positioned so as to engage with the apertures 24 of trailing flange 21 in the clamped position.
- the number of the hook-shaped leaf springs 25 preferably corresponds to the number .Iadd.of .Iaddend.rectangular apertures 24 in the trailing flange 21.
- the structure and function of the device of this embodiment .[.am.]. .Iadd.are .Iaddend.similar to those of the embodiment described above.
Landscapes
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Massaging Devices (AREA)
- Fixing For Electrophotography (AREA)
Abstract
Description
Claims (31)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/268,091 USRE36977E (en) | 1994-05-04 | 1999-03-11 | Apparatus and method for attaching a flexible printing plate |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4415683A DE4415683C2 (en) | 1994-05-04 | 1994-05-04 | Device for attaching a flexible pressure plate |
DE4415683.9 | 1994-05-04 | ||
US08/429,813 US5613440A (en) | 1994-05-04 | 1995-04-27 | Apparatus and method for attaching a flexible printing plate |
US09/268,091 USRE36977E (en) | 1994-05-04 | 1999-03-11 | Apparatus and method for attaching a flexible printing plate |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/429,813 Reissue US5613440A (en) | 1994-05-04 | 1995-04-27 | Apparatus and method for attaching a flexible printing plate |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE36977E true USRE36977E (en) | 2000-12-05 |
Family
ID=6517253
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/429,813 Ceased US5613440A (en) | 1994-05-04 | 1995-04-27 | Apparatus and method for attaching a flexible printing plate |
US09/268,091 Expired - Lifetime USRE36977E (en) | 1994-05-04 | 1999-03-11 | Apparatus and method for attaching a flexible printing plate |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/429,813 Ceased US5613440A (en) | 1994-05-04 | 1995-04-27 | Apparatus and method for attaching a flexible printing plate |
Country Status (5)
Country | Link |
---|---|
US (2) | US5613440A (en) |
EP (1) | EP0680826B1 (en) |
JP (1) | JP2941684B2 (en) |
CA (1) | CA2148517C (en) |
DE (3) | DE4415683C2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6481348B2 (en) * | 2000-07-06 | 2002-11-19 | Tokyo Kikai Seisakusho, Ltd. | Object attachment apparatus for printing cylinder |
US6601508B1 (en) | 1999-03-26 | 2003-08-05 | Heidelberger Druckmaschinen Ag | Device for clamping printing forms in clamping channels of reduced size |
EP1400356A3 (en) * | 2002-09-19 | 2004-04-28 | Goss Systemes Graphiques Nantes | Device with a blanket and a blanket cylinder;cylinder, blanket and printing machine |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19549707B4 (en) * | 1994-11-16 | 2005-03-03 | Kabushiki Kaisha Tokyo Kikai Seisakusho | Forme plate locking appts. for rotary printing machine - has forme plate retainer spaced from periphery of forme cylinder, with forme plate locking hook section alignment |
DE19509559C2 (en) * | 1995-03-16 | 1997-01-23 | Koenig & Bauer Albert Ag | Jig |
FR2733718B1 (en) * | 1995-05-04 | 1997-08-01 | Heidelberg Harris Sa | CONNECTION DEVICE BETWEEN RETAINING ELEMENTS AND A TRANSMISSION OF A PRINTING SHAPE CYLINDER |
DE19542156C1 (en) * | 1995-11-11 | 1997-05-15 | Kba Planeta Ag | Flexible printing plate and clamp for plate cylinder of sheet-fed printing press |
DE29600845U1 (en) * | 1996-01-19 | 1996-03-07 | MAN Roland Druckmaschinen AG, 63075 Offenbach | Device for fastening a covering on a printing unit cylinder |
DE19729375A1 (en) * | 1997-07-09 | 1999-01-14 | Ltg Lufttechnische Gmbh | Device for fastening a flexible plate on the circumference of the cylinder of a painting machine |
DE19841912A1 (en) * | 1998-09-14 | 2000-03-16 | Roland Man Druckmasch | Mounting for flexible printing plates at the plate cylinder of a rotary printing press has recesses at the flanks of the cylinder channel with leaf springs to push the bent plate ends into them |
DE19913701A1 (en) * | 1999-03-26 | 2000-09-28 | Heidelberger Druckmasch Ag | Printing plate mounting system, using spring fittings engaging with rear edge of plate and allowing play |
JP4666707B2 (en) * | 1999-12-21 | 2011-04-06 | 株式会社ミヤコシ | Plate quick holding device in plate cylinder |
DE10060984B4 (en) * | 2000-12-08 | 2006-10-26 | Man Roland Druckmaschinen Ag | Vorichtung for attaching a clothing on a printing cylinder |
DE10222225A1 (en) | 2002-05-16 | 2003-12-04 | Heidelberger Druckmasch Ag | Cylinder lift and method for mounting a cylinder lift in a printing press |
DE102005010739A1 (en) * | 2005-03-09 | 2006-09-14 | Man Roland Druckmaschinen Ag | Printing plate clamping system uses magnets on print cylinder to hold ferromagnetic elements at ends of printing plate |
FR2905082B1 (en) * | 2006-08-22 | 2010-01-22 | Goss Int Montataire Sa | PRINTING PLATE AND CORRESPONDING PRINTING ASSEMBLY. |
DE102007002029B3 (en) * | 2007-01-13 | 2008-04-10 | Koenig & Bauer Aktiengesellschaft | Rotary printing press's cylinder e.g. plate cylinder, has stop unit extending over entire width of cylinder cavity and comprising opening through which retaining units pass in direction of attachment slot |
DE102007006042B3 (en) * | 2007-02-07 | 2008-09-18 | Koenig & Bauer Aktiengesellschaft | Blanket i.e. textile printing blanket, clamping method for printing machine, involves clamping ends of blanket by clamping spindle, and holding end section in prestressed-position after being released by clamping spindle within hollow space |
CN102046381B (en) † | 2008-05-28 | 2013-09-18 | 柯尼格及包尔公开股份有限公司 | Web offset press as well as method for operating the web offset press |
DE102012220398B4 (en) | 2012-11-09 | 2016-09-15 | Koenig & Bauer Ag | A method for clamping a plate on a lateral surface of a rotary body of a printing press |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2235119A1 (en) * | 1971-07-22 | 1973-02-01 | North American Rockwell | DEVICE FOR CLAMPING A FLEXIBLE PRESSURE PLATE ON A PRESSURE CYLINDER |
US3756691A (en) * | 1970-03-24 | 1973-09-04 | Robotron Veb K | Aperture aberration reducing device |
US4104968A (en) * | 1976-06-03 | 1978-08-08 | Albert-Frankenthal Ag | Clamping device for flexible printing plates |
DE2757552A1 (en) * | 1977-12-23 | 1979-06-28 | Koenig & Bauer Ag | Plate cylinder carrying two printing plates - has rapid action plate clamping system which includes adjusting elements with shafts coupled to worms |
EP0252746A2 (en) * | 1986-07-11 | 1988-01-13 | Hercules Incorporated | Printing plate assembly |
DE3809667C1 (en) * | 1988-03-23 | 1988-12-08 | Man Roland Druckmaschinen Ag, 6050 Offenbach, De | Device for attaching the rubber blanket on the blanket cylinder |
JPH01174132U (en) * | 1988-05-27 | 1989-12-11 | ||
JPH0445736A (en) * | 1990-06-11 | 1992-02-14 | Taketomi Sei | Removal of meat of bloody color of fish meat and device therefor |
JPH0577400A (en) * | 1991-09-19 | 1993-03-30 | Komori Corp | Pressplate replacing method and device in rotary press |
EP0534579A2 (en) * | 1991-09-19 | 1993-03-31 | Komori Corporation | Plate exchange apparatus for rotary press |
DE4138925A1 (en) * | 1991-11-27 | 1993-06-03 | Roland Man Druckmasch | Fixture of pliable printing plate on printing machine form cylinder - involves axially running groove in cylinder which on one edge carries moving plate arm |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE223511C (en) * | ||||
US3757691A (en) * | 1972-06-12 | 1973-09-11 | North American Rockwell | Printing cylinder |
JP2518811Y2 (en) * | 1990-08-22 | 1996-11-27 | 株式会社小森コーポレーション | Plate winding device |
-
1994
- 1994-05-04 DE DE4415683A patent/DE4415683C2/en not_active Expired - Fee Related
-
1995
- 1995-03-01 DE DE29503439U patent/DE29503439U1/en not_active Expired - Lifetime
- 1995-04-21 JP JP7096996A patent/JP2941684B2/en not_active Expired - Fee Related
- 1995-04-27 US US08/429,813 patent/US5613440A/en not_active Ceased
- 1995-04-28 EP EP95106414A patent/EP0680826B1/en not_active Expired - Lifetime
- 1995-04-28 DE DE59505406T patent/DE59505406D1/en not_active Expired - Lifetime
- 1995-05-03 CA CA002148517A patent/CA2148517C/en not_active Expired - Fee Related
-
1999
- 1999-03-11 US US09/268,091 patent/USRE36977E/en not_active Expired - Lifetime
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3756691A (en) * | 1970-03-24 | 1973-09-04 | Robotron Veb K | Aperture aberration reducing device |
DE2235119A1 (en) * | 1971-07-22 | 1973-02-01 | North American Rockwell | DEVICE FOR CLAMPING A FLEXIBLE PRESSURE PLATE ON A PRESSURE CYLINDER |
US4104968A (en) * | 1976-06-03 | 1978-08-08 | Albert-Frankenthal Ag | Clamping device for flexible printing plates |
DE2757552A1 (en) * | 1977-12-23 | 1979-06-28 | Koenig & Bauer Ag | Plate cylinder carrying two printing plates - has rapid action plate clamping system which includes adjusting elements with shafts coupled to worms |
EP0252746A2 (en) * | 1986-07-11 | 1988-01-13 | Hercules Incorporated | Printing plate assembly |
DE3809667C1 (en) * | 1988-03-23 | 1988-12-08 | Man Roland Druckmaschinen Ag, 6050 Offenbach, De | Device for attaching the rubber blanket on the blanket cylinder |
JPH01174132U (en) * | 1988-05-27 | 1989-12-11 | ||
JPH0445736A (en) * | 1990-06-11 | 1992-02-14 | Taketomi Sei | Removal of meat of bloody color of fish meat and device therefor |
JPH0577400A (en) * | 1991-09-19 | 1993-03-30 | Komori Corp | Pressplate replacing method and device in rotary press |
EP0534579A2 (en) * | 1991-09-19 | 1993-03-31 | Komori Corporation | Plate exchange apparatus for rotary press |
US5213038A (en) * | 1991-09-19 | 1993-05-25 | Komori Corporation | Plate exchange apparatus for rotary press |
DE4138925A1 (en) * | 1991-11-27 | 1993-06-03 | Roland Man Druckmasch | Fixture of pliable printing plate on printing machine form cylinder - involves axially running groove in cylinder which on one edge carries moving plate arm |
Non-Patent Citations (1)
Title |
---|
Search Report No. 95106414, Nov. 4, 1996, not translated. * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6601508B1 (en) | 1999-03-26 | 2003-08-05 | Heidelberger Druckmaschinen Ag | Device for clamping printing forms in clamping channels of reduced size |
US6481348B2 (en) * | 2000-07-06 | 2002-11-19 | Tokyo Kikai Seisakusho, Ltd. | Object attachment apparatus for printing cylinder |
EP1400356A3 (en) * | 2002-09-19 | 2004-04-28 | Goss Systemes Graphiques Nantes | Device with a blanket and a blanket cylinder;cylinder, blanket and printing machine |
CN1307052C (en) * | 2002-09-19 | 2007-03-28 | 南特高斯绘图系统公司 | Component of offset printing machine, correspondent cylinder, rubber cloth unit and offset printing machine |
Also Published As
Publication number | Publication date |
---|---|
DE59505406D1 (en) | 1999-04-29 |
EP0680826B1 (en) | 1999-03-24 |
DE4415683A1 (en) | 1995-11-09 |
DE4415683C2 (en) | 1998-04-09 |
US5613440A (en) | 1997-03-25 |
EP0680826A3 (en) | 1996-12-18 |
DE29503439U1 (en) | 1995-04-20 |
JP2941684B2 (en) | 1999-08-25 |
JPH07323519A (en) | 1995-12-12 |
CA2148517A1 (en) | 1995-11-05 |
CA2148517C (en) | 2000-04-04 |
EP0680826A2 (en) | 1995-11-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 8 |
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FPAY | Fee payment |
Year of fee payment: 12 |
|
AS | Assignment |
Owner name: MANROLAND AG,GERMANY Free format text: CHANGE OF NAME;ASSIGNOR:MAN ROLAND DRUCKMASCHINEN AG;REEL/FRAME:022024/0567 Effective date: 20080115 Owner name: MANROLAND AG, GERMANY Free format text: CHANGE OF NAME;ASSIGNOR:MAN ROLAND DRUCKMASCHINEN AG;REEL/FRAME:022024/0567 Effective date: 20080115 |