EP0860274B1 - Dispositif de mise en ligne d'une bande utilisée dans une machine rotative d'impression - Google Patents
Dispositif de mise en ligne d'une bande utilisée dans une machine rotative d'impression Download PDFInfo
- Publication number
- EP0860274B1 EP0860274B1 EP19960402560 EP96402560A EP0860274B1 EP 0860274 B1 EP0860274 B1 EP 0860274B1 EP 19960402560 EP19960402560 EP 19960402560 EP 96402560 A EP96402560 A EP 96402560A EP 0860274 B1 EP0860274 B1 EP 0860274B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- cylinders
- entrance
- exit
- displacement
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/02—Conveying or guiding webs through presses or machines
- B41F13/025—Registering devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/032—Controlling transverse register of web
- B65H23/038—Controlling transverse register of web by rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
- B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
- B65H23/1882—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling longitudinal register of web
Definitions
- This invention aims, while making it very easy to online setting of a scrolling machine of a strip material, machine composed of several groups successive work, to simplify its construction and usually group three functions into a single mechanism separate: alignment, longitudinal marking and marking lateral. These functions are particularly important in printing machines, especially rotary.
- a rotary machine for example a rotogravure press
- printing a strip material when this goes from one cylinder to another and that these two cylinders are not perfectly parallel, the outer fibers of the strip are not stretched with the same constraint and therefore do not are not in balance.
- the cylinder of exit from a previous group be parallel to the cylinder of next group.
- These two cylinders should not be necessarily in the same plane. Indeed if there is between their axes a small angle in a projection on a plane parallel to the two cylinders, the strip of material will find easily an equilibrium position, so that the outer fibers are stretched with the same stress. he it is obvious in this case that the tensions of the fibers fibers will be stronger than the tension of the fiber median.
- the difference in voltage will be all the greater as the angle projected on a plane parallel to the two cylinders will be tall.
- the longitudinal tracking function is generally obtained by means of a movable return cylinder, called a register.
- the register mechanism is integrated into the group and movement of the cylinder can be manual or motorized. In this last In this case, it is possible to make automatic tracking by means of an electronic servomechanism.
- This system has the drawback, on the one hand, of lengthening the band between two groups and therefore increase the system time constant and on the other hand to do vary the length of the tape in the machine, following corrections, which has the effect of modifying unnecessarily the identification of colors consecutive to that which has just been corrected.
- the printing units can be securely fixed to the ground, the engraved cylinders can be rigidly mounted between the machine frames, the play in transmissions can be minimized and length tape can be as short as in a machine, which tracking is carried out by means of a differential.
- the line-up device of a strip used in a rotary printing machine comprising at least two printing units each provided an inlet cylinder and an outlet cylinder for the strip is characterized in that the outlet cylinder of a first group is connected to the input cylinder of a second group by rods of identical lengths connected to the ends respective output and input cylinders of two groups following print to form a deformable parallelogram and in this that at least the output and input cylinders of each group are respectively linked to mechanisms of displacement.
- the tape leaves the dryer by wrapping around the cylinder 6 and leaves the group by cylinder 7. It enters the group following by cylinder 8 and in this group follows a identical route to that followed in the previous group.
- Fig. 2 is a top view showing the cylinders 7 and 8. These cylinders turn mad on their axes 9 and 10; they can be moved in a horizontal plane by rotating around the vertical pivot 11 (fig. 2C) and the vertical pivot sliding 12 (fig. 2D) and sliding in the guides or slides 13 and 14, which can be seen in fig. 1.
- Axes 9 and 10 are connected by connecting rods 15 and 16, the lengths are strictly identical. These connecting rods are linked to axes 9 and 10 by means of ball joints 17, 18, 19 and 20.
- the pivot 12 and the slide 14 are mounted on a support assembly 21 visible in FIG. 1 and who moves vertically relative to supports 22 and 23.
- the supports 22 and 23 carry the pivot 24 and the slide 25 of the cylinder 26, identical to cylinder 7 and by which the strip leaves the second group.
- the horizontal displacement of the cylinder 7 can be carried out by a flywheel or by a servomotor 27 (fig. 1).
- the vertical movement of the support assembly 21 can be carried out by a handwheel or by the servomotor 28 (fig. 1).
- the two servomotors 27 and 28 are shown on the front of the groups on the operator side but they can just as well be mounted on the opposite side, without it changing the description of operation. In this case, the figures would be symmetrical.
- the set of cylinders 7 and 8 and connecting rods 15 and 16 constitutes a deformable parallelogram.
- this parallelogram is a rectangle and the strip of material 29 which leaves the cylinder 7 along an axis perpendicular to it is brought to cylinder 8 too along the perpendicular axis of the latter.
- the path of the strip is will do without more constraint on it than if the two groups were perfectly aligned because the band 29 connects two cylinders 7 and 8 parallel, although they are not perfectly located in the same plane and part 30 of the strip connects two cylinders 8 and 31 of the second group which are parallel by construction.
- Aligning a machine can be done much more quickly and with much freer tolerances than those that are generally necessary.
- this alignment can be done without major concern for possible movements of groups in the future due to ground movements for example because, whatever happens, the strip path thanks to the guaranteed parallelism of the cylinders 7 and 8, on the one hand, and 8 and 31, on the other hand, will be always without constraint. You just have to move horizontally the cylinder 7 to bring the strip of material in the middle axis of the second group. Whereas in a conventional press, it would be necessary to carry out a new alignment.
- This same horizontol movement of cylinder 7 can be used to move the tape printed by the first group in the next group and therefore adjust the lateral marking colors without the need to move in the axially neither the engraved cylinder 32 nor the entire second printing group.
- the set of cylinders 7 and 8 and connecting rods 15 and 16 will be deformed into a parallelogram without the band 29 being constrained because the two cylinders 7 and 8 always remain parallel.
- the passage of the tape is as direct as in a group whose identification is adjusted by means of a differential and does not have the disadvantage of winding and the additional elongation that we encounter with a register integrated into the group.
- the invention is described in relation to a set of two groups printing according to the process rotogravure. It is obvious that this number is not limiting and that a greater number of printing groups can be aligned to form a press. Likewise, the following description is not limited to the process rotogravure. It can be applied to any other process using a similar strip passage and working by successive operations on the running of this strip.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Description
- d'une part, des empilages et des tolérances des cotes dans la construction du groupe et de son séchage,
- d'autre part, de la mobilité de certains sols sur lesquels sont implantées les machines ce qui fait qu'une machine parfaitement alignée lors de son installation ne l'est plus après un certain temps.
Claims (6)
- Dispositif de mise en ligne d'une bande utilisée dans une machine rotative d'impression comportant au moins deux groupes d'impression munis chacun d'un cylindre d'entrée (8) et d'un cylindre de sortie (7) pour la bande, caractérisé en ce que le cylindre de sortie (7) d'un premier groupe est relié au cylindre d'entrée (8) d'un second groupe par des bielles (15, 16) de longueurs identiques reliées aux extrémités respectives des cylindres de sortie (7) et d'entrée (8) de deux groupes d'impression se suivant pour constituer un parallélogramme déformable, et en ce qu'au moins les cylindres de sortie (7) et d'entrée (8) de chaque groupe sont reliés respectivement à des mécanismes de déplacement (27, 21, 28).
- Dispositif suivant la revendication 1, caractérisé en ce qu'il est prévu des mécanismes pour le déplacement horizontal (27) et pour le déplacement vertical (21, 28).
- Dispositif suivant la revendication 2, caractérisé en ce que le mécanisme pour le déplacement horizontal (27) agit sur le cylindre de sortie (7) d'un groupe, et en ce que le mécanisme pour le déplacement vertical (21, 28) agit sur le cylindre d'entrée (8) du groupe suivant.
- Dispositif suivant l'une des revendications 1 à 3, caractérisé en ce que les bielles (15, 16) sont reliées aux cylindres (7, 8) par des axes (9, 10) sur lesquels des cylindres sont montés fous, lesdits axes étant portés par des rotules (17, 18, 19, 20).
- Dispositif suivant l'une des revendications 1 à 4, caractérisé en ce qu'il est prévu un pivot fixe (11) à une extrémité du cylindre de sortie (7) et une coulisse (13) à l'autre extrémité, un pivot (12) à une extrémité du cylindre d'entrée (8) et une coulisse (14) à l'autre extrémité, les pivots étant placés sur le côté opposé au moyen de déplacement de correction (27).
- Dispositif suivant l'une des revendications 1 à 5, caractérisé en ce que les mécanismes pour le déplacement des cylindres sont constitués par des volants ou des servomécanismes.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19960402560 EP0860274B1 (fr) | 1996-11-27 | 1996-11-27 | Dispositif de mise en ligne d'une bande utilisée dans une machine rotative d'impression |
DE1996603202 DE69603202T2 (de) | 1996-11-27 | 1996-11-27 | Vorrichtung zum Ausrichten einer Bahn zur Verwendung in einer Rotationsdruckmaschine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19960402560 EP0860274B1 (fr) | 1996-11-27 | 1996-11-27 | Dispositif de mise en ligne d'une bande utilisée dans une machine rotative d'impression |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0860274A1 EP0860274A1 (fr) | 1998-08-26 |
EP0860274B1 true EP0860274B1 (fr) | 1999-07-07 |
Family
ID=8225323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19960402560 Expired - Lifetime EP0860274B1 (fr) | 1996-11-27 | 1996-11-27 | Dispositif de mise en ligne d'une bande utilisée dans une machine rotative d'impression |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0860274B1 (fr) |
DE (1) | DE69603202T2 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6274880B1 (en) * | 1998-07-31 | 2001-08-14 | Hewlett-Packard Company | Fluid level sensing system and method having controlled surface pairs |
DE10060714A1 (de) * | 2000-12-07 | 2002-06-13 | Heidelberger Druckmasch Ag | Walzenpaaranordnung |
JP4982313B2 (ja) | 2007-09-20 | 2012-07-25 | リョービ株式会社 | 転写用フィルムの巻取り方法及び印刷用紙への転写装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE744927C (de) * | 1939-12-12 | 1944-02-22 | Vomag Vogtlaendische Maschinen | Registerstellvorrichtung fuer Rotationsdruckmaschinen, insbesondere Rotationstiefdruckmaschinen |
US3373288A (en) * | 1965-08-26 | 1968-03-12 | Web Press Eng Inc | Photosensitive web shifting apparatus |
US4069959A (en) * | 1976-10-27 | 1978-01-24 | Butler Automatic, Inc. | Web guide apparatus |
GB2190042B (en) * | 1986-05-01 | 1990-11-21 | Rofrep Ltd | Printing of successive images onto an elongate web. |
FR2705612A1 (fr) * | 1993-03-09 | 1994-12-02 | Depond Bernard | Groupe d'impression pour machine flexographique. |
CH688137A5 (de) * | 1994-05-20 | 1997-05-30 | De La Rue Giori Sa | Rotations-Rollendruckmaschine mit einer Registervorrichtung zum Ausrichten der Papierbahn. |
-
1996
- 1996-11-27 EP EP19960402560 patent/EP0860274B1/fr not_active Expired - Lifetime
- 1996-11-27 DE DE1996603202 patent/DE69603202T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69603202T2 (de) | 2000-05-18 |
DE69603202D1 (de) | 1999-08-12 |
EP0860274A1 (fr) | 1998-08-26 |
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