EP0660780A1 - Device for supplying printing plates to a plate cylinder and for carrying away the same from the plate cylinder. - Google Patents
Device for supplying printing plates to a plate cylinder and for carrying away the same from the plate cylinder.Info
- Publication number
- EP0660780A1 EP0660780A1 EP93920650A EP93920650A EP0660780A1 EP 0660780 A1 EP0660780 A1 EP 0660780A1 EP 93920650 A EP93920650 A EP 93920650A EP 93920650 A EP93920650 A EP 93920650A EP 0660780 A1 EP0660780 A1 EP 0660780A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate cylinder
- plate
- roller
- cylinder
- shaft
- 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.)
- Granted
Links
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
- B41F27/1206—Feeding to or removing from the forme cylinder
Definitions
- the invention relates to a device for feeding and discharging printing plates to and from a plate cylinder of a rotary printing press according to the preamble of claim 1.
- JP 62-19458 A a generic device for attaching and releasing a plate to a plate cylinder of an offset printing machine is known, in which the plate is fed to the plate cylinder via a shaft, and then clamped on the outer circumference of the plate cylinder and rotated of the plate cylinder is pressed by means of a roller and then attached. The plate is removed from the plate cylinder of a printing unit by means of a clamp which is connected to a pulling device attached to another printing unit.
- a disadvantage of this device is that the removal of the plate from the printing cylinder is very space-consuming and time-consuming in that the plate must be pulled diagonally across the clear cross section of the operating aisle of the printing unit by means of the pulling device.
- the invention has for its object to reduce the number of rollers or aids for feeding, removing and pressing the printing plate in a device for feeding and discharging printing plates to and from a plate cylinder.
- the roller device designed as a pressure roller, performs a total of three functions, namely firstly, in addition to pressing the plate onto the plate cylinder when changing the plate, the roller device, in conjunction with the rounded guide elements arranged near the end faces within the shaft, acts as a guide element for the pressure plates with an adjustable one Gap between the rubber roller and the plate cylinder, secondly when discharging and thirdly when feeding a printing plate. Furthermore, only two positions of the plate cylinder are required when changing plates.
- Figure 1 is a schematic side view of the device according to the invention with a pressure plate in the execution position.
- Fig. 2 is a view A of Fig. 1;
- FIG. 3 is an enlarged view of a detail X according to FIG. 1 ;
- Fig. 4 is an enlarged view of the
- Fig. 5 is an enlarged view of the
- FIG. 6 shows a further embodiment variant in a schematic side view
- FIG. 7 is a view P of FIG .. 6
- a rotary printing press has several printing units, e.g. B. four printing units, each including a plate cylinder 2 and a blanket cylinder 3, and of which a printing unit 1 is shown.
- This cylinder 2; 3 are known in side frames 4; 6 of the rotary printing press Axle journal mounted.
- the device consists essentially of a storage chute 8 with two sub-chutes, a feed chute 9 and a delivery chute 11 and an adjoining, below it, guide chute 12 and a roller 13 for guiding and pressing a printing plate.
- the storage shaft 8 has a front wall 14 and a rear wall 16, which run parallel to one another and through side plates, not shown, on the end faces 17; 18 are connected.
- the feed shaft 9 and the feed shaft 11 is through a parallel to the walls 14; 16 extending partition 19 separated, which passes through the storage shaft 8 from a first end 21 to a second end 22.
- the intermediate wall 19 ends at or in an axial direction to the cylinders 2; 3 extending strip 23, which on the side plates of the end faces 17; 18 of the storage shaft 8 is attached. (Fig. 3).
- This bar 23 separates the storage shaft 8 from the guide shaft 12, ie the feed shaft 8 ends at this point and the guide shaft 12 begins.
- the guide shaft 12 is likewise moved in the direction of the rollers 2; 3 extending front wall 14 and rear wall 16 and side plates on the end faces 17; 18th educated.
- the guide runs eight from the bar 23 in a slightly curved shape in the direction of the plate cylinder 2 with a radius that corresponds approximately to the radius of the plate cylinder 2 until just before an axially extending surface line on the plate cylinder 2 below its axis of rotation 24.
- the strip 23 has guide elements or guide plates 28 to 36, which can each be strip-shaped and can consist of spring steel.
- baffles 28 to 30 are designed as holding plates and extend in the radial direction to the plate cylinder 2 or transversely to the direction of movement B of a new pressure plate 27 to be supplied, lie with their ends 39 inside on the front wall 14, and are under load with their both ends 39 can be pivoted in the direction C about the bar 23.
- baffles 31 are still; 32; 33 arranged, which extend between the front wall 14 and the rear wall 16, extend in the direction of the plate cylinder 2 and with their ends 40 inside on the front wall 14 of the guide shaft 12 rest.
- the guide plates 31 to 33 act as one-way resilient switches, which make the feed shaft 9 for printing plates passable only in one direction C and for printing plates coming from the feeding shaft 9 coming from direction D and removed from the plate cylinder 2 close.
- the guide plates 34 to 36 also fastened to the bar 23 point in the direction of the first end 21 of the storage shaft 8 and rest with their end 41 on the inside of the rear wall 16, so that the export shaft 11 is closed from its first end 21.
- a pressure plate coming from the direction of the arrow D from the plate cylinder 2 after passing the guide plates 34 to 36 can be placed thereon until it is removed from the export shaft 11.
- the baffles 34 to 36 thus serve as a relement, against the printing plates 27 which are inadvertently introduced into this export shaft 11 and thus as a one-way passage for printing plates to be executed.
- the baffles 28 to 30, 31 to 33 and 39 to 41 can also be made in one piece d. H. be carried out consistently.
- the baffles 28 to 30, arranged in the radial direction, can be omitted if the locking force of the baffles 31 to 33 acting as a switch is dimensioned so large that a pressure plate lying between the inside of the front wall 14 and the ends 40 of the baffles 31 to 33 Baffles 31 to 33 only happen in the direction C against the action of an additional force.
- the bar 23 extending in the axial direction could have an axis of rotation, likewise extending in the axial direction, about which the bar 23 is designed to be pivotable.
- the guide plates 28 to 30 could be omitted and the guide plates 31 to 33 and 34 to 36 could be made of non-resilient material and against the force of springs, e.g. B. tension springs, can be pressed against the inner sides of the front wall 14 or the rear wall 16, so that overall a resilient employment of the guide plates 31 to 36 would be erzi.
- guide elements 43; 44 Within the guide shaft 12 and shortly before its outlet in the direction of the plate cylinder 2 in the vicinity of the end faces 17; 18 guide elements 43; 44 attached, the thickness of which correspond to the distance between the conveyor wall 14 and the rear wall 16.
- a distance e between the guide elements 43; 44 to each other corresponds to the width of a pressure plate 27.
- the guide elements 43; 44 have roundings or bevels 46 on the sides facing one another, which enable the pressure plate 27 to be centered when the plate cylinder 2 is guided toward the guide shaft 12 in the direction of the arrow D. This also applies to centering when feeding the pressure plate 27 from the guide shaft 12 to the plate cylinder 2 in the arrow direction C.
- the guide elements 43; 44 have a first end 47 and a second end 48 as seen in the direction of arrow C,
- the roller 13 is shown, which consists of a rubber roller 49 which is rotatably mounted on an axis 51.
- the rubber roller 49 can also be divided as shown in Fig. 2, in the axial direction and z. B. from three individual roles 49 exist.
- the axis 51 is on both sides in two-armed levers 52; 53 stored, which a bearing 54; 56 approximately in the middle of the end face 17; 18 of the guide shaft 12 have.
- First arms 57 of the levers 52; 53 support the axis 51 and second arms 58 are via joints 59 and piston rods 61, each on the end faces 17; 18 of the guide shaft 12 attached positioning elements 62; 63, e.g. B. double-acting pneumatic cylinders connected.
- the plate cylinder 2 has known plate clamping and clamping devices 64; 66 in a cylinder pit, like this z. B. are described in DE-OS 36 04 071 to clamp a pressure plate 67.
- Known terminal strips or clamping flaps 68; 69 provided.
- the actuation of the aforementioned clamping and clamping devices can be done by means of a working medium, for. B. Compressed air, which is supplied via a rotary entry on the shaft journal of the plate cylinder 2.
- These eccentric discs 71; 72 run in the case of employment of the rubber roller 49 on the plate cylinder 2 in on the circumference of the plate cylinder 2 in each case in the vicinity of its end faces grooves 76; 77, but without touching the bottom of the groove.
- These grooves 76; 77 can also be contained in bearers attached to the end of the plate cylinder 2.
- the device works as follows. Corresponding to a discharge position K de r on the plate cylinder 2 of the pressure plate 67 according to FIG. 1, the plate clamping and tensioning device 64; 66 in the rest position and the terminal block 69 has released the plate end 73 of the pressure plate 67.
- the roller device 13 is in the discharge position K, ie the rubber roller 49 has a maximum distance 1 from the plate cylinder 2, or between the rubber roller 49 and the plate cylinder 2 there is a gap with the width 1.
- the plate end 78 now relaxes in a radius-distant position from the plate cylinder 2 and springs against it the rubber roller 49.
- the rubber roller 49 acts as a guide element.
- the plate end 78 By turning the plate cylinder 2 further in the direction of rotation M, the plate end 78 reaches the guide shaft 12 and passes the guide elements 43; 44 between its ends 47; 48, which center the plate end 78 by means of the roundings 46. If the pressure plate 67 is thus securely guided in the guide shaft 12, then the positioning elements or working cylinders 62;
- the machine positions up to the feed position G, opens the terminal strip 68 for the start of the plate 11 and stops.
- the plate end 78 now protrudes from the chute 11 and can be pulled out by the operating personnel until the beginning of the plate ends 41 of the guide plates 34; 35; 36 happened.
- These guide plates 34 to 36 now spring back and lock the delivery shaft 11.
- the plate cylinder 2 is still in the feed position G according to FIG. 4.
- a pressure plate 27 which has already been introduced into the feed shaft 9 is in the waiting position with its start of pressure 79 on the end 39 of the guide plates 28 to 30 arranged in the radial direction. Due to the action of a force on the pressure plate 27, the guide elements 28 to 30 swivel around the bar 23 and the start of pressure 79 of the pressure plate 27 abuts against the guide plates 31 to 33 in the direction of movement C and thus reaches the guide shaft 12 Guide elements 43; 44 with their ends 47; 48 and bevels 46.
- the pressure plate is centered and, according to FIG.
- the terminal strip 68 is now closed in response to a button signal or sensor signal and, after a further button signal, the plate cylinder 2 rotates counterclockwise in the direction of production F.
- the eccentric discs 71; 72 now slide from the stops 73; 74 and continue to run in the grooves 76; 77, so that the rubber roller 49 by means of the pressure plate 27 the working cylinder 62; 63 firmly presses on the outer surface of the plate cylinder 2 (Fig. 5).
- the plate cylinder 2 now rotates until the terminal block 69 in the vicinity of the rubber roll 49, ie in the discharge position K, comes. Then the terminal block 69 and the positioning elements 62; 63 turn off the rubber roller 49, ie they bring it into the discharge position K according to FIG. 1.
- the pressure plate 27 is by means of the plate clamping and tensioning devices 64; 66 excited.
- the plate changing process is now complete.
- the positioning elements 62; 63 can be designed as pneumatic working cylinders.
- the device consisting of eight eight, the further guide shaft 12 and the roller device 13 located on the guide shaft 12 is to be regarded as a rigid unit 81 which, when not in use, ie in the rest position in front of both cylinders 2; 3, ie in front of the plate cylinder 2 and in front of the rubber cylinder 3 is pivotable.
- joints 82 to 85 are fastened at the top and bottom, which are each connected via couplers 87 to 90 to joints 92 to 95 fixed to the frame.
- the drive takes place via a frame-fixed working cylinder 97, z. B.
- Pneumatic cylinder which is firmly connected via its piston rod and a joint 98 and a lever 99 with the coupling 90 located in the bearing 95.
- the coupling 90 is designed with a bearing as an angle lever, which is connected via a first leg to the joint 85 and via a second leg to the joint 98 located on the piston rod of the working cylinder 97.
- the storage shaft 8 and the guide shaft 12 are arranged to be separable from one another.
- Locking elements 108; 109 with the struts 103; 104 connectable.
- the locking elements 108; 109 each consist of an angle 111, which with the end face of a leg extending in the axial direction on the strut 106; 107 attached, e.g. B. is welded. Parallel to this is in the axial direction extending leg is a pin 112 which is on the one hand in a bore of the second leg of the angle 111 and on the other hand in a bore of the strut 106; 107 is stored.
- the pin 112 is provided with a handle 116, e.g. B. equipped with a handle.
- a handle 116 e.g. B. equipped with a handle.
- the unit 81 without the swivel curves 101; 102 in the direction of the machine foundation without Abs tands selected tion to the side frame 4 to move vertically that z. B. the joints 82, 84 and 83, 85 slide in vertically arranged parallel guides.
- the drive could be done by a pneumatic cylinder.
- the positioning elements 62; 63 can be designed as servomotors or as pneumatic actuating cylinders, which move to several preset positions.
- Baffle plate arranged radially
- Baffle plate arranged radially
- Baffle plate arranged radially
Landscapes
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4231906 | 1992-09-18 | ||
DE4231906A DE4231906C2 (en) | 1992-09-18 | 1992-09-18 | Device for feeding and discharging printing plates to and from a plate cylinder |
PCT/DE1993/000884 WO1994006632A1 (en) | 1992-09-18 | 1993-09-17 | Device for supplying printing plates to a plate cylinder and for carrying away the same from the plate cylinder |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0660780A1 true EP0660780A1 (en) | 1995-07-05 |
EP0660780B1 EP0660780B1 (en) | 1997-01-22 |
Family
ID=6468668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93920650A Expired - Lifetime EP0660780B1 (en) | 1992-09-18 | 1993-09-17 | Device for supplying printing plates to a plate cylinder and for carrying away the same from the plate cylinder |
Country Status (5)
Country | Link |
---|---|
US (1) | US5555810A (en) |
EP (1) | EP0660780B1 (en) |
JP (1) | JPH08501260A (en) |
DE (2) | DE4231906C2 (en) |
WO (1) | WO1994006632A1 (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4414443C1 (en) * | 1994-04-26 | 1995-11-30 | Heidelberger Druckmasch Ag | Device for guiding a print carrier |
DE4417054B4 (en) * | 1994-05-14 | 2007-01-11 | Heidelberger Druckmaschinen Ag | Pressing device in the printing unit of a printing press |
DE4440239C5 (en) * | 1994-11-10 | 2007-11-22 | Man Roland Druckmaschinen Ag | Rolling element for pressing a flexible pressure plate to the forme cylinder |
DE19511075A1 (en) * | 1995-03-25 | 1996-09-26 | Roland Man Druckmasch | Method and device for mounting flexible printing forms |
FR2732268B1 (en) * | 1995-03-31 | 1997-06-20 | Heidelberg Harris Sa | DEVICE FOR EXCHANGING PRINTING PLATES |
FR2735418B1 (en) * | 1995-06-19 | 1997-08-22 | Heidelberg Harris Sa | DEVICE FOR EXCHANGING PLATES OF PRINTING UNITS OF PRINTING MACHINES |
US6113346A (en) | 1996-07-31 | 2000-09-05 | Agfa Corporation | Method for loading and unloading a supply of plates in an automated plate handler |
DE19803727A1 (en) * | 1998-01-30 | 1999-08-05 | Heidelberger Druckmasch Ag | Method and device for automatically feeding and / or removing printing plates to / from the plate cylinder of a printing press |
DE19803725A1 (en) * | 1998-01-30 | 1999-08-05 | Heidelberger Druckmasch Ag | Device for accurate positioning of a printing plate |
DE19957920A1 (en) * | 1998-12-23 | 2000-06-29 | Heidelberger Druckmasch Ag | Arrangement for detecting position of printing plate on printing machine plate cylinder has sensors that detect overlapping with printing plate mounted on plate cylinder or attachment device |
DE10008489B4 (en) * | 1999-03-19 | 2006-08-24 | Heidelberger Druckmaschinen Ag | Method and device for feeding a printing plate |
JP3817090B2 (en) * | 1999-06-30 | 2006-08-30 | 富士写真フイルム株式会社 | Printing plate mounting equipment |
ATE301544T1 (en) | 1999-09-14 | 2005-08-15 | Komori Printing Mach | PLATE INTRODUCTION DEVICE IN A ROTARY PRINTING MACHINE |
JP2001171085A (en) * | 1999-12-21 | 2001-06-26 | Mitsubishi Heavy Ind Ltd | Semi-automatic press plate replacing device and multicolor printer having semi-automatic press plate replacing device |
DE10139292A1 (en) * | 2000-09-13 | 2002-03-21 | Heidelberger Druckmasch Ag | Printing plate handling device has holder supporting printing plate provided with guidance element for feeding plate to printing cylinder |
US6595135B2 (en) * | 2001-05-07 | 2003-07-22 | Heidelberger Druckmaschinen Ag | Printing unit with automatically moveable tail tucker bar |
JP4044359B2 (en) * | 2002-04-12 | 2008-02-06 | 株式会社小森コーポレーション | Plate insertion device |
DE10238123A1 (en) * | 2002-08-21 | 2004-03-11 | Koenig & Bauer Ag | Devices for mounting a printing form on a form cylinder of a printing press |
DE102004006942A1 (en) * | 2004-02-12 | 2005-11-03 | Koenig & Bauer Ag | Method for automatic print master changing in offset printing press has the master roller clutch disengaged and the roller driven by a variable speed drive roller |
DE102004022089A1 (en) * | 2004-05-05 | 2005-12-01 | Man Roland Druckmaschinen Ag | Printing plate cassette for a printing press and printing machine |
DE102006006330B3 (en) * | 2006-02-11 | 2007-04-12 | Koenig & Bauer Ag | Printing mechanism with platen moving device for rotary printing press has fixed guide sector remote from platen cylinder |
DE102009052093A1 (en) * | 2008-12-02 | 2010-06-17 | Heidelberger Druckmaschinen Ag | Method and device for automatically feeding printing plates |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6219458A (en) * | 1985-07-19 | 1987-01-28 | Akiyama Insatsuki Seizo Kk | Plate mounting and dismounting device for offset press |
JP2844230B2 (en) * | 1989-12-06 | 1999-01-06 | 株式会社小森コーポレーション | Plate vise device for sheet-fed printing press |
DE3940795A1 (en) * | 1989-12-09 | 1991-06-13 | Koenig & Bauer Ag | METHOD AND DEVICE FOR AUTOMATIC FEEDING OR REMOVING A PRINT PLATE |
DE3940796A1 (en) * | 1989-12-09 | 1991-06-13 | Koenig & Bauer Ag | METHOD AND DEVICE FOR AUTOMATICALLY CHANGING A PRINT PLATE |
JPH06219458A (en) * | 1993-01-22 | 1994-08-09 | Fuji Electric Co Ltd | Hinge part of resin mold |
-
1992
- 1992-09-18 DE DE4231906A patent/DE4231906C2/en not_active Expired - Fee Related
-
1993
- 1993-09-17 JP JP6507694A patent/JPH08501260A/en active Pending
- 1993-09-17 US US08/397,069 patent/US5555810A/en not_active Expired - Fee Related
- 1993-09-17 DE DE59305286T patent/DE59305286D1/en not_active Expired - Fee Related
- 1993-09-17 EP EP93920650A patent/EP0660780B1/en not_active Expired - Lifetime
- 1993-09-17 WO PCT/DE1993/000884 patent/WO1994006632A1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO9406632A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1994006632A1 (en) | 1994-03-31 |
US5555810A (en) | 1996-09-17 |
DE4231906C2 (en) | 1995-10-12 |
DE59305286D1 (en) | 1997-03-06 |
DE4231906A1 (en) | 1994-03-24 |
JPH08501260A (en) | 1996-02-13 |
EP0660780B1 (en) | 1997-01-22 |
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