US3835778A - Device for attaching and adjusting flexible printing plates on printing cylinders - Google Patents

Device for attaching and adjusting flexible printing plates on printing cylinders Download PDF

Info

Publication number
US3835778A
US3835778A US39736573A US3835778A US 3835778 A US3835778 A US 3835778A US 39736573 A US39736573 A US 39736573A US 3835778 A US3835778 A US 3835778A
Authority
US
United States
Prior art keywords
clamping bars
printing
printing cylinder
printing plate
pin
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
Application number
Inventor
E Bock
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GRAPHO METRONIC ME B- und REGELTECHNIK & Co KG GmbH
Original Assignee
REGISTER SYST GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by REGISTER SYST GmbH filed Critical REGISTER SYST GmbH
Priority to US39736573 priority Critical patent/US3835778A/en
Application granted granted Critical
Publication of US3835778A publication Critical patent/US3835778A/en
Assigned to GRAPHO METRONIC ME B- UND REGELTECHNIK GMBH & CO. KG reassignment GRAPHO METRONIC ME B- UND REGELTECHNIK GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: REGISTER SYSTEMS GMBH
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F27/00Devices for attaching printing elements or formes to supports
    • B41F27/005Attaching and registering printing formes to supports
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F27/00Devices for attaching printing elements or formes to supports
    • B41F27/12Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1218Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
    • B41F27/1225Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly
    • B41F27/1231Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly by translatory motion substantially tangential to support surface

Abstract

A printing plate is adjustably secured to a printing cylinder by clamping bars which are adjustably mounted in an axially extending recess of the printing cylinder and which are configured to grip opposite ends of a printing plate for assuring proper alignment of registration marks on the printing plate and on the printing cylinder. A first pair of clamping bars which are adapted to first have an edge of the printing plate clamped therebetween are equipped with a pin and slot arrangement located at substantially the longitudinal center of the clamping bars. A pair of adjustment screw means are located at opposite ends of the clamping bars to permit adjustment of the ends circumferentially of the printing cylinder. The adjustment screw means are provided with indicator means to indicate the adjusted position of the clamping bars and, after the clamping bars have been placed in their adjusted position, the slotted portion of the centrally located pin and slot arrangement is axially fixed relative to the printing cylinder. The slot is configured to extend in its longitudinal direction circumferentially of the cylinder and the pin, which is spring mounted to the clamping bars, extends radially into the slot.

Description

United States Patent 1 Beck [ Sept. 17, 1974 1 1 DEVICE FOR ATTACHING AND ADJUSTING FLEXIBLE PRINTING PLATES ON PRINTING CYLINDERS [75] Inventor: Erich Bock, Dortmund, Germany [73] Assignee: Register Systems GmbH, Dartmund, Germany 22 1 Filed: Sept. 14, 1973 21 Appl. No.: 397,365

[52] U.S. Cl. 101/4151 [51] Int. Cl B411 1/28 [58] Field of Search lO1/4l5.1, 378

[56] References Cited UNITED STATES PATENTS 2,123,997 7/1938 .lirousek l0l/4l5.l 3,151,553 10/1964 l0l/4l5.l 3,154,012 10/1964 ..101/4l5.1 3,156,184 11/1964 l0l/4l5.l 3,168,040 2/1965 Norton l0l/415.1

Primary Examiner-Stephen C. Pellegrino Attorney, Agent, or FirmToren, McGeady and Stanger [57] ABSTRACT A printing plate is adjustably secured to a printing cylinder by clamping bars which are adjustably mounted in an axially extending recess of the printing cylinder and which are configured to grip opposite ends of a printing plate for assuring proper alignment of registration marks on the printing plate and on the printing cylinder. A first pair of clamping bars which are adapted to first have an edge of the printing plate clamped therebetween are equipped with a pin and slot arrangement located at substantially the longitudinal center of the clamping bars. A pair of adjustment screw means are located at opposite ends of the clamping bars to permit adjustment of the ends circumferentially of the printing cylinder. The adjustment screw means are provided with indicator means to indicate the adjusted position of the clamping bars and, after the clamping bars have been placed in their adjusted position, the slotted portion of the centrally located pin and slot arrangement is axially fixed relative to the printing cylinder. The slot is configured to extend in its longitudinal direction circumferentially of the cylinder and the pin, which is spring mounted to the clamping bars, extends radially into the slot.

9 Claims, 4 Drawing Figures DEVICE FOR ATTACI-IING AND ADJUSTING FLEXIBLE PRINTING PLATES ON PRINTING CYLINDERS BACKGROUND OF THE INVENTION The present invention generally relates to printing presses and more particularly to a device for attaching and adjusting flexible printing plates upon printing cylinders in printing presses of the rotary type. Pairs of clamping bars are adjustably mounted in an axially extending recess formed in the printing cylinder by means of adjusting screws in accordance with registration marks provided on the printing cylinder and on the printing plate. A plurality of pairs of clamping bars are provided with a first pair of clamping bars beingadaptable to initially engage an edge of the printing plate. Alignment means formed on the first pair of clamping bars are adapted to mate with related alignment means formed on the dge of the printing plate to be initially engaged thereby guiding the edge between the clamping bars for attachment therebetween.

In known devices of this type, an example of which is set forth in German Pat. No. 1,786,317, the clamping bar pair initially engaging a printing plate edge is provided with two fitting pins'whose ends cooperate with fitting bore holes provided in the bottom of the printing cylinder recess. With this arrangement, it is possible to adjust each printing plate without requiring excessive care on the part of an operator. However, exact engagement of the printing plate with the pair of clamping bars must be achieved by means of the mutually engaging alignment means provided on the printing plate and clamping bars. Even after a previously attached printing plate is released, all the relationships of the individual parts relative to each other will be maintained once an adjustment has been made as a result of the fitting pins and fitting bore holes which are provided. In such an arrangement, it is generally possible to dispense with proof prints. However, it may be that due to a tolerance error in the manufacture of the printing plate or in the manufacture of the fitting devices which are provided thereon for cooperation with the clamping bars, there will occur an inaccurate set-up of the printing plate resulting in an imperfect impression. When this occurs, the appropriately designed fitting pins can be loosened or released somewhat and the position of the clamping bars can be readjusted by means of adjusting screws situated therein. However, after setting of the subsequent printing plate it becomes necessary to perform a resetting operation of the pair of clamping bars by means of the adjusting screws to establish the correct initial setting and to also return the fitting pins of the clamping bars to their initial position.

It is an object of the present invention to improve and simplify the function and operation of a device of this type particularly with regard to the required operating procedures in setting up the printing plate.

SUMMARY OF THE INVENTION Briefly, the present invention may be described as a device for adjustably securing a printing plate on a printing cylinder wherein the printing cylinder includes an axially extending recess and a plurality of pairs of clamping bars adjustably mounted in the recess for axial and tangential movement therein relative to the printing cylinder. The clamping bars are arranged for gripping therebetween an edge of a printing plate which must be aligned relative to the printing cylinder. The printing plate and the printing cylinder include registration marks which are placed in coincident relationship when the printing plate is first gripped between the clamping bars. Interfitting alignment means are formed on the clamping bars and on the leading edge of the printing plate to direct the printing plate into initial alignment. In accordance with the present invention, the pair of clamping bars which are adapted to first have a printing plate edge clamped therebetween are provided at substantially their longitudinal center with a radially extending pin which fits into a circumferentially extending slot defined in slot-defining means adjustably mounted in the printing cylinder recess. A pair of adjustment screw means are located at the opposite ends of the clamping bars to enable adjustment thereof in directions circumferentially of the printing cylinder. The adjustment screw means are provided with indicator means to indicate the adjusted position of the clamping bars. After the adjusted position of the clamping bars has been achieved, the slot-defining means are afiixed relative to the cylinder with the radially extending pin extending thereinto.

After a first printing plate has been mounted upon the printing cylinder, and the slot-defining means is affixed to the printing cylinder, the indicator means of the adjustment screw means are set at a zero position. If, upon mounting of a subsequent printing plate, it becomes necessary to readjust the position of the front clamping bars because of error tolerances in the second printing plate, this may be easily accomplished by manipulation of the adjustment screw means. When a subsequent printing plate which does not contain error tolerances is again to be mounted upon the printing cylinder, it is only necessary for the operator to manipulate the adjustment screw means to return the indicator means to zero thereby enabling a set-up of the printing plate in a fashion identical to that of the first printing plate.

As a result of the structure of the present invention, only a single fitting pin and a single slot are required as opposed to the previously required plurality of fitting bolts in bore holes. Furthermore, in the event that resetting of the clamping bars may be necessary, the present invention enables an exact predictable guidance of the clamping bars free of the obstructive restraining forces which occur in prior art devices. In prior art devices, when the fitting bolts are loosened and retightened, there may occur movement of the fitting pin that is not precisely controllable and free of obstructing forces. Moreover with the present invention, radial adjustment of the fitting pins is no longer necessary thereby eliminating this operational step from the adjusting procedure.

It is, however, preferred to arrange the centrally located fitting pin with a spring bias within the clamping bar pair with the spring force directed radially toward the printing cylinder. This is preferred due to the fact that there must necessarily exist a certain degree of play between the clamping bars and the fitting pin which is accommodated therein and with the slotdefining means connected at the bottom of the printing cylinder recess.

In this connection, it is also preferred to structure the fitting pin with a tapered extremity which extends into the circumferential slot with the slot being designed in a correspondingly sloped configuration of lateral surfaces.

In a further aspect of the invention, the indicator means associated with the adjustment screw means located at the ends of the clamping bars are formed with a spring mounted adjustable scanning pin which extends parallel to the direction of the adjustment screw which permits circumferential relative movement of the clamping bars on the printing cylinder. The pin is adapted to engage a calibrated scale wheel or the like which is arranged upon the adjusting screw. The scanning pin will indicate the adjusted position of the clamping bars and, if deviation from the zero position has occurred as a result of readjustment for imperfect tolerances in printing plates, resetting to the original or zero position may be accomplished with ease when a new printing plate not involving imperfect tolerances is to be mounted upon the device.

It is preferred that the scanning pin, which is mounted upon the clamping bars, be arranged therein within a member which is reciprocally mounted relative to the clamping bars in the longitudinal direction of the scanning pin. In addition to enabling more accurate adjustment of the initial scanning point, this arrangement permits the device to be adapted to adjustment screws and printing plates of different lengths, thereby permitting implementation of the invention into existing rotary printing presses which may be equipped with accessories of varying dimensions. In this aspect of the invention, it is preferred to have the reciprocal member mounting the scanning pin threadedly engaged within the clamping bars for permitting reciprocal movement of the scanning pin relative to the calibrated indicator means arranged on the adjustment screw. The threads may thus be designed of any desired length to enable the device to be adapted to any differences likely to be encountered in the adjustment screw and in the printing plates.

The various features of novelty which characterize the invention are pointed out with particularity in the I claims annexed to and forming a part of this disclosure.

For a better understanding of the invention, its operating advantages and specific objects attained by its use, reference should be had to the accompanying drawings and descriptive matter in which ther is illustrated and described a preferred embodiment of the invention.

BRIEF DESCRIPTION OF THE DRAWING In the drawing:

FIG. 1 is a partial top view of a printing cylinder embodying the present invention;

FIG. 2 is a cross-sectional view taken along the line II of FIG. 1;

FIG. 3 is a cross-sectional view taken along the line II-Il of FIG. 1; and

FIG. 4 is a side view partially in section taken along the line IIIIII of FIG. 1.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to the drawings, a printing cylinder 1 is provided with a recess la extending axially substan tially over the entire length of the printing cylinder with a pair of clamping bars 2 arranged therein to be axially and tangentially movable relative to the printing cylinder 1. Although the assembly includes two clamping bar pairs, only the clamping bar pair 2 is shown for purposes of illustration. Each clamping bar pair is axially and tangentially movable within predefined limits by means of guide elements 3 arranged at the bottom of the recess la as well as by counter-guide elements 11 correspondingly affixed to the clamping bars 2 as illustrated particularly in FIG. 4.

Each pair of clamping bars 2 is configured in two parts to accommodate therebetween one edge of a printing plate 4 which may be clamped between the pair of bars 2 by means of screws 13.

The pair of clamping bars 2 depicted in the drawings is adapted to receive therebetween the first edge of the printing plate 4 and, accordingly,.the clamping bar pair illustrated in the drawings is arranged with a pair of axially spaced radially positioned bolts 8, with one of the bolts 8 being configured with oppositely facing flattened sides. The edge of the printing plate 4 is structured to include a pair of recesses 9 which correspond exactly to the thicknesses of the bolts 8 in such a manner that, after insertion of the printing plate 4 into the respective pair of clamping bars 2, the bolts 8 and the recesses 9 operate as interfitting alignment means to position the printing plate accurately relative to the clamping bars. Flattening of the sides of one of the bolts 8 is intended to compensate for the possibility of slight curvatures which may occur in the printing plate upon clamping thereof between the pair of clamping bars 2.

Moreover, each of the clamping bars 2 are provided with a series of adjusting screws 12 which are located for engagement against the side walls of the recess la of the printing cylinder 1 in order to enable adjustable positioning of the clamping bars 2 and of the printing plate 4 with respect to the printing cylinder.

The adjusting screws 12 are provided with calibrated dials or wheels 12a which are connected with the adjusting screws in such a manner that they will indicate a zero position when correctly adjusted.

A fitting pin 6 having a conically-shaped lower end is centrally spring mounted in the clamping bars 2 in a position to extend radially relative to the printing cylinder into engagement with a correspondingly sloped slot 7 defined within a central guide piece 3. The slot 7 extends in its longitudinal direction circumferentially of theprinting cylinder and, as shown in FIG. 4, comprises a width corresponding to the thickness of the fitting pin 6. Accordingly, it will be seen that the fitting pin will be longitudinally slidable relative to the slot 7.

A scanning pointer 14 is mounted at opposite ends of the clamping bars 2 to extend circumferentially relative to the printing cylinder 1. A spring 15 applies a spring force biasing the pointer 14 against one of the associated calibrated dials 12a which is adjustably fixedly mounted by means of a set screw 16 upon an adjusting screw 12. The scanning pin 14 is not directly mounted in the clamping bars 2 but is instead situated within a cartridge member 17 which is threadedly engaged by screw means within the clamping bars 2.

In the operation of the device of the present invention the edge of the printing plate 4 having the recesses 9 formed therein is first firmly inserted between the clamping bars 2 until the recesses 9 abut against the bolts 8. Thereupon, the clamping bars 2 are firmly clamped together to hold the edge of the printing plate 4 therebetween by means of screws 13 which are first loosened to permit insertion of the printing plate edge and which are then tightened to effect a firm clamping engagement. Subsequently, the printing cylinder 1 is permitted to turn through almost one complete revolution following which the opposite edge of the printing plate 4 is inserted in an identical manner between a pair of clamping bars (not shown) opposite the clamping bars 2 described above which have received the first edge of the printing plate. The second set of clamping bars are also situated in the recess 1a of the printing cylinder and they will cooperate with the illustrated pair of clamping bars 2 to firmly hold therebetween the opposite edge of the printing plate 4.

At this point, registration marks provided on the printing plate and on the printing cylinder are precisely aligned by manipulation of the adjusting screws 12 located in both pairs of clamping bars. If necessary, a proof or trial print may be made to determine the accuracy of the set-up. If it is found that the set-up is precisely correct, the guide piece 3 is then fastened relative to the printing cylinder 1 by means, for example, of a mounting screw 3a shown in dotted line form in FIG. 4. The guide piece 3 is permitted to remain in the loosened condition prior to determining the precision with which the set-up has been made and it will be seen that after tightening of the screw 3a, the circumferentially extending slot 7 will permit circumferential movement of the clamping bars 2 but will resist axial movement thereof.

After the position of the clamping bars 2 has been correctly determined, the dials 12a are clamped by means of the set screws 16 upon the adjusting screws 12 with the dials in the zero position relative to the scanning pointers 14. Moreover, the scanning pointers 14 are adjusted in such a manner that by a corresponding rotation of the member 17 the pointers 14 will perpendicularly engage the dials 12a From the foregoing, it will be seen that the clamping bars 2 will be firmly secured relative to the printing cylinder 1 despiterelease after printing of the printing plate 4 from between the clamping bars by loosening of the screws 13. Accordingly, after insertion and securing of a new printing plate between the pairs of clamping bars, there will be obtained a correct setting of the device thereby obviating the necessity for resetting of the printing plate or of the clamping bars and eliminating the need for making new proof or trail prints.

However, if it should occur that under exceptional circumstances a difference in the printing set-up is experienced, it will be possible to readjust the device by manipulation of the adjusting screws 12. Thus, when a printing plate containing inaccurate dimensional tolerances is inserted, readjustment can be readily carried out by means of the adjusting screws 12 with the fitting pin 6 sliding longitudinally along the slot 7 in the circumferential direction of the printing cylinder. When adjustment to accommodate for such an inaccurately dimensioned printing plate is necessitated, the adjusting screws 12 will be manipulated so that the indicating means 12a are moved from their zero position. After the inaccurately dimensioned printing plate is removed, and a subsequent printing plate not containing dimensional inaccuracies is reinserted, all that will be necessary is for the operator to readjust the adjusting screws 12 to bring the indicator means 12a back to the zero position relative to the scanning pointers 14. The need for readjustment will be plainly apparent by the relative position existing between the scanning pointers l4 and the indicator means 12a. Thus, adjustment for incorrect tolerances may be readily accomplished with the inherently correct positioning of the members being subsequently obtained with ease merely by adjustment of the screws 12.

Furthermore, it will be seen that the circumferentially reciprocal cartridge member 17 permits the device to be adapted for utilization with adjusting screws of different lengths and with different printing plates thereby advantageously enabling the device to be utilized with printing cylinders of various types and with different printing plates and adjustment screws.

While a specific embodiment of the invention has been shown and described in detail to illustrate the application of the inventive principles, it will be understood that the invention may be embodied otherwise without departing from such principles.

What is claimed is:

1. In a device for adjustably securing a printing plate on a printing cylinder, said printing cylinder including an axially extending recess and a plurality of pairs of clamping bars adjustably mounted in said recess for axial and tangential movement therein relative to said printing cylinder, said clamping bars being arranged for gripping therebetween an edge of said printing plate aligned relative to said printing cylinder in accordance with registration marks appearing on said printing plate and printing cylinder, with alignment means formed on a first pair of said clamping bars which are adapted to first have a printing plate edge clamped therebetween, said alignment means being arranged to mate with related alignment means formed on said first clamped printing plate edge for guiding said printing plate into clamped engagement with said clamping bars, the improvement comprising, in combination, a pin attached at said first clamping bars at substantially the longitudinal center thereof, means located in said recess defining a slot extending generally circumferentially of said printing cylinder, said slot-defining means being positioned relative to said cylinder to locate said slot with said pin extending thereinto, a pair of adjustment screw means operatively associated with said first clamping bar pair at opposite ends thereof to effect adjustment of said clamping bars circumferentially of said printing cylinder, said adjustment screw means including indicator means to indicate the adjusted position of said clamping bars, and means enabling said slot-defining means to be adjustably fixed relative to said printing cylinder after said printing plate has been accurately mounted thereupon.

2. A device according to claim 1, wherein said pin is spring mounted upon said clamping bars to extend in a direction radially of said printing cylinder.

3. A device according to claim 1, wherein said pin is formed in a tapered configuration extending into said slot, said slot being also formed with a correspondingly shaped tapered configuration.

4. A device according to claim 1, wherein said indicator means include a spring mounted adjustable scanning pointer extending parallel to said adjustment screw means associated therewith, and calibrated dial means mounted upon said adjustment screw means in a position for engagement with said scanning pointer.

5. A device according to claim 4, wherein said scanning pointer is mounted within a reciprocal member arranged upon said clamping bars for reciprocating mounted upon said clamping bars to engage a wall of said axially extending recess whereby manipulation of said screws will effect movement of the end of said clamping bars upon which said screw is mounted relative to said printing cylinder in a direction extending circumferentially thereof.

9. A device according to claim 1, wherein said pin is arranged for sliding engagement within said slot in a direction extending circumferentially of said printing cylinder, with movement of said pin axially of said printing cylinder being prevented by the engagement of said pin within said slot.

Claims (9)

1. In a device for adjustably securing a printing plate on a printing cylinder, said printing cylinder including an axially extending recess and a plurality of pairs of clamping barS adjustably mounted in said recess for axial and tangential movement therein relative to said printing cylinder, said clamping bars being arranged for gripping therebetween an edge of said printing plate aligned relative to said printing cylinder in accordance with registration marks appearing on said printing plate and printing cylinder, with alignment means formed on a first pair of said clamping bars which are adapted to first have a printing plate edge clamped therebetween, said alignment means being arranged to mate with related alignment means formed on said first clamped printing plate edge for guiding said printing plate into clamped engagement with said clamping bars, the improvement comprising, in combination, a pin attached at said first clamping bars at substantially the longitudinal center thereof, means located in said recess defining a slot extending generally circumferentially of said printing cylinder, said slotdefining means being positioned relative to said cylinder to locate said slot with said pin extending thereinto, a pair of adjustment screw means operatively associated with said first clamping bar pair at opposite ends thereof to effect adjustment of said clamping bars circumferentially of said printing cylinder, said adjustment screw means including indicator means to indicate the adjusted position of said clamping bars, and means enabling said slot-defining means to be adjustably fixed relative to said printing cylinder after said printing plate has been accurately mounted thereupon.
2. A device according to claim 1, wherein said pin is spring mounted upon said clamping bars to extend in a direction radially of said printing cylinder.
3. A device according to claim 1, wherein said pin is formed in a tapered configuration extending into said slot, said slot being also formed with a correspondingly shaped tapered configuration.
4. A device according to claim 1, wherein said indicator means include a spring mounted adjustable scanning pointer extending parallel to said adjustment screw means associated therewith, and calibrated dial means mounted upon said adjustment screw means in a position for engagement with said scanning pointer.
5. A device according to claim 4, wherein said scanning pointer is mounted within a reciprocal member arranged upon said clamping bars for reciprocating movement relative thereto in the longitudinal direction of the scanning pointer.
6. A device according to claim 5, wherein said reciprocal member is threadedly engaged by screw means within said clamping bars to enable adjustable reciprocating movement thereof.
7. A device according to claim 1, wherein said indicator means are adjustably fixed relative to said adjustment screw means.
8. A device according to claim 1, wherein said adjustment screw means comprise a pair of longitudinal screws extending in a direction circumferentially of said printing cylinder, said screws being adjustably mounted upon said clamping bars to engage a wall of said axially extending recess whereby manipulation of said screws will effect movement of the end of said clamping bars upon which said screw is mounted relative to said printing cylinder in a direction extending circumferentially thereof.
9. A device according to claim 1, wherein said pin is arranged for sliding engagement within said slot in a direction extending circumferentially of said printing cylinder, with movement of said pin axially of said printing cylinder being prevented by the engagement of said pin within said slot.
US39736573 1973-09-14 1973-09-14 Device for attaching and adjusting flexible printing plates on printing cylinders Expired - Lifetime US3835778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US39736573 US3835778A (en) 1973-09-14 1973-09-14 Device for attaching and adjusting flexible printing plates on printing cylinders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39736573 US3835778A (en) 1973-09-14 1973-09-14 Device for attaching and adjusting flexible printing plates on printing cylinders

Publications (1)

Publication Number Publication Date
US3835778A true US3835778A (en) 1974-09-17

Family

ID=23570895

Family Applications (1)

Application Number Title Priority Date Filing Date
US39736573 Expired - Lifetime US3835778A (en) 1973-09-14 1973-09-14 Device for attaching and adjusting flexible printing plates on printing cylinders

Country Status (1)

Country Link
US (1) US3835778A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010685A (en) * 1974-06-28 1977-03-08 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Printing plate clamping device
US4759287A (en) * 1981-06-13 1988-07-26 Komori Printing Machinery Co., Ltd. Unit-to-unit register adjusting apparatus for use in a sheet-fed rotary printing press
US4840121A (en) * 1986-11-26 1989-06-20 Am International, Inc. Master holding mechanism for duplicating machines
FR2652424A1 (en) * 1989-06-13 1991-03-29 Heidelberger Druckmasch Ag Method and device for exposure and printing, with spotlight holding, of a flexible relief printing form.
US5189958A (en) * 1991-04-05 1993-03-02 A. B. Dick Company Plate clamping system for a duplicating machine
US5327832A (en) * 1991-10-02 1994-07-12 Koenig & Bauer Aktiengesellschaft Printing plate adjusting assembly
GB2274261A (en) * 1992-12-10 1994-07-20 Roland Man Druckmasch Lateral register system for printing forme
US5370051A (en) * 1992-11-05 1994-12-06 Man Roland Druckmaschinen Ag Clamping device for attaching printing plates in proper registry on the plate cylinder of printing machines
US5497703A (en) * 1993-02-27 1996-03-12 Heidelberger Druckmaschinen Ag Device for adjusting the oblique register in a clamping device for locking printing plates in an offset printing machine
US6041710A (en) * 1998-01-26 2000-03-28 Ryobi Ltd. Diagonal image adjusting device in a plate cylinder
US6237491B1 (en) * 1998-09-21 2001-05-29 Ryobi Ltd. Apparatus for positioning a printing plate to a plate cylinder of a printing machine
US6629914B1 (en) * 1999-07-09 2003-10-07 Komori-Chambon Sa Device for positioning a plate on a roll with magnetic fixing
US20100154667A1 (en) * 2008-12-24 2010-06-24 Printing Research, Inc. Multiple Layer Anti-marking Jackets and Methods of Using in Offset Printing
US20100154665A1 (en) * 2008-12-24 2010-06-24 Printing Research, Inc. Anti-marking Jackets Comprised of Fluoropolymer and Methods of Using in Offset Printing
US20100307357A1 (en) * 2008-12-24 2010-12-09 Printing Research, Inc. Anti-marking Jackets Comprised of Attachment Structure and Methods of Using in Offset Printing
US8424453B2 (en) 2010-09-01 2013-04-23 Printing Research, Inc. Apparatus and method for adjusting anti-marking jackets
US8677899B2 (en) 2011-01-31 2014-03-25 Printing Research, Inc. Reversible anti-marking jackets and methods of using
US9862180B2 (en) 2012-05-02 2018-01-09 Printing Research, Inc Beaded partially coated anti-marking jackets

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2123997A (en) * 1935-05-01 1938-07-19 Chandler & Price Co Sheet-holding means for cylinders of printing presses and the like
US3151553A (en) * 1961-04-11 1964-10-06 Harris Intertype Corp Plate cylinder with plate clamps
US3154012A (en) * 1961-05-25 1964-10-27 Maschf Augsburg Nuernberg Ag Means for registering printing plates
US3156184A (en) * 1962-02-20 1964-11-10 Harris Intertype Corp Plate clamp
US3168040A (en) * 1962-07-18 1965-02-02 Harris Intertype Corp Plate clamp registering mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2123997A (en) * 1935-05-01 1938-07-19 Chandler & Price Co Sheet-holding means for cylinders of printing presses and the like
US3151553A (en) * 1961-04-11 1964-10-06 Harris Intertype Corp Plate cylinder with plate clamps
US3154012A (en) * 1961-05-25 1964-10-27 Maschf Augsburg Nuernberg Ag Means for registering printing plates
US3156184A (en) * 1962-02-20 1964-11-10 Harris Intertype Corp Plate clamp
US3168040A (en) * 1962-07-18 1965-02-02 Harris Intertype Corp Plate clamp registering mechanism

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010685A (en) * 1974-06-28 1977-03-08 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Printing plate clamping device
US4759287A (en) * 1981-06-13 1988-07-26 Komori Printing Machinery Co., Ltd. Unit-to-unit register adjusting apparatus for use in a sheet-fed rotary printing press
US4840121A (en) * 1986-11-26 1989-06-20 Am International, Inc. Master holding mechanism for duplicating machines
FR2652424A1 (en) * 1989-06-13 1991-03-29 Heidelberger Druckmasch Ag Method and device for exposure and printing, with spotlight holding, of a flexible relief printing form.
US5189958A (en) * 1991-04-05 1993-03-02 A. B. Dick Company Plate clamping system for a duplicating machine
AU644952B2 (en) * 1991-04-05 1993-12-23 A.B. Dick Company Improved plate clamping system for a duplicating machine
US5327832A (en) * 1991-10-02 1994-07-12 Koenig & Bauer Aktiengesellschaft Printing plate adjusting assembly
US5370051A (en) * 1992-11-05 1994-12-06 Man Roland Druckmaschinen Ag Clamping device for attaching printing plates in proper registry on the plate cylinder of printing machines
GB2274261A (en) * 1992-12-10 1994-07-20 Roland Man Druckmasch Lateral register system for printing forme
GB2274261B (en) * 1992-12-10 1996-01-03 Roland Man Druckmasch Lateral register system
US5497703A (en) * 1993-02-27 1996-03-12 Heidelberger Druckmaschinen Ag Device for adjusting the oblique register in a clamping device for locking printing plates in an offset printing machine
US6041710A (en) * 1998-01-26 2000-03-28 Ryobi Ltd. Diagonal image adjusting device in a plate cylinder
US6237491B1 (en) * 1998-09-21 2001-05-29 Ryobi Ltd. Apparatus for positioning a printing plate to a plate cylinder of a printing machine
US6629914B1 (en) * 1999-07-09 2003-10-07 Komori-Chambon Sa Device for positioning a plate on a roll with magnetic fixing
US20100154667A1 (en) * 2008-12-24 2010-06-24 Printing Research, Inc. Multiple Layer Anti-marking Jackets and Methods of Using in Offset Printing
US20100154665A1 (en) * 2008-12-24 2010-06-24 Printing Research, Inc. Anti-marking Jackets Comprised of Fluoropolymer and Methods of Using in Offset Printing
US20100307357A1 (en) * 2008-12-24 2010-12-09 Printing Research, Inc. Anti-marking Jackets Comprised of Attachment Structure and Methods of Using in Offset Printing
US8220388B2 (en) 2008-12-24 2012-07-17 Printing Research, Inc. Multiple layer anti-marking jackets and methods of using in offset printing
US8281716B2 (en) * 2008-12-24 2012-10-09 Printing Research, Inc. Anti-marking jackets comprised of fluoropolymer and methods of using in offset printing
US8397634B2 (en) * 2008-12-24 2013-03-19 Printing Research, Inc. Anti-marking jackets comprised of fluoropolymer and methods of using in offset printing
US8578853B2 (en) 2008-12-24 2013-11-12 Printing Research, Inc. Anti-marking jackets comprised of attachment structure and methods of using in offset printing
US8794147B2 (en) 2008-12-24 2014-08-05 Printing Research, Inc. Anti-marking jackets comprised of fluoropolymer and methods of using in offset printing
US8424453B2 (en) 2010-09-01 2013-04-23 Printing Research, Inc. Apparatus and method for adjusting anti-marking jackets
US8677899B2 (en) 2011-01-31 2014-03-25 Printing Research, Inc. Reversible anti-marking jackets and methods of using
US9862180B2 (en) 2012-05-02 2018-01-09 Printing Research, Inc Beaded partially coated anti-marking jackets

Similar Documents

Publication Publication Date Title
JP2919025B2 (en) Composite web rotary printing press
US4484522A (en) System for reducing setting-up time in printing machines having register adjustment devices
US6672190B2 (en) Precision miter gauge
US4007866A (en) Web transport arrangement
US4437403A (en) System for adjusting printing plates mounted on plate cylinders
US5117365A (en) Electronic apparatus and method of register correction
US4428287A (en) Method for production of impressions of accurate register on printing presses
US4014261A (en) Conversion device of a storage drum for sheet transfer
US3783781A (en) Doctor blade control mechanism, particularly for use in printing presses
CA1295180C (en) Device for mounting and tensioning flexible printing plates on the platecylinder of a rotary printing machine
US3470816A (en) Exchangeable printing subassembly for a rotary printing press
GB2070513A (en) Plunge type router
EP0238804A2 (en) Device for attaching flexible printing forms to the plate cylinder of a rotary printing machine
EP0308797A2 (en) Tensioning device for printing plates
CH649629A5 (en) Light electric incremental positioning device.
CA1249481A (en) Flexographic printing press comprising a plurality of inking units and plate cylinders
EP0126432A1 (en) Milling tool
US20030097946A1 (en) Plate cylinder and printing plate holder for the cylinder
US3943851A (en) Flat screen alignment device
EP1738905B1 (en) Cylinder of a rotary printing machine with a slit along the axis of the cylinder
US5379669A (en) Precision miter gauge
US5081927A (en) Rotary printing press with device for engaging or disengaging a rubber-covered cylinder with an impression cylinder and/or a plate cylinder
US5052120A (en) Sheet positioning, clamping, and tensioning means
US4273447A (en) Pivotable mount for scanning unit
US5398603A (en) Drive for a printing press with a plurality of printing units

Legal Events

Date Code Title Description
AS Assignment

Owner name: GRAPHO METRONIC ME B- UND REGELTECHNIK GMBH & CO.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:REGISTER SYSTEMS GMBH;REEL/FRAME:004457/0766

Effective date: 19850821