EP0785069A1 - Vorrichtung für Schön- und Widerdruck auf einer Bahn in einem Durchlauf mit einem und demselben Druckkopf - Google Patents

Vorrichtung für Schön- und Widerdruck auf einer Bahn in einem Durchlauf mit einem und demselben Druckkopf Download PDF

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Publication number
EP0785069A1
EP0785069A1 EP97420008A EP97420008A EP0785069A1 EP 0785069 A1 EP0785069 A1 EP 0785069A1 EP 97420008 A EP97420008 A EP 97420008A EP 97420008 A EP97420008 A EP 97420008A EP 0785069 A1 EP0785069 A1 EP 0785069A1
Authority
EP
European Patent Office
Prior art keywords
ribbon
triangle
printing
strip
print head
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.)
Withdrawn
Application number
EP97420008A
Other languages
English (en)
French (fr)
Inventor
Philippe Grenier
Pascale Zellvegre
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0785069A1 publication Critical patent/EP0785069A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F5/00—Rotary letterpress machines
    • B41F5/04—Rotary letterpress machines for printing on webs
    • B41F5/12—Rotary letterpress machines for printing on webs for printing on one side and on the other side of webs between the same forme and impression cylinders
    • 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
    • B41F13/06—Turning-bar arrangements

Definitions

  • the present invention relates to a device for printing a single pass with the same printhead, a recto / verso ribbon.
  • the present invention relates to machines for continuous printing on both sides, starting from a spool. These machines are equipped with a print head for the front and a print head for the back.
  • the invention aims to allow printing, side by side, the front and back, in a single pass, with a single printhead, and therefore to produce a much more economical material. Indeed, the fact of having only one print head, results in the economy of a second head, as well as all its control mechanics. The machine also becomes much more compact.
  • ribbon will be used in the following text, in order to facilitate reading, but will not be limiting in its definition which will include all the materials leaving a reel, as well as all the materials worked continuously.
  • printing will include printing, marking, composting, transplanting, coating, gluing, depositing.
  • the object of this patent device is to be able to print, mark, compost, transplant, coat, glue, deposit, simultaneously and side by side on the 2 front / back sides of a fabric ribbon, coated fabric, paper, cardboard, synthetic material or any other, in, printing, hot stamping, thermal and matrix printing, thermal transfer, inkjet, laser printing, screen printing, rotogravure, letterpress, flexography, offset, coating, gluing, whether this printing is made on tape stop or continuously.
  • This device is designed to be installed on all printing, marking, composting, laying, coating or other machines, each time a front / back operation is requested in the same passage.
  • the ribbon then goes under the 90 ° angle guide (n ° 4), which it wraps, letting face A reappear while it is on the 90 ° guide (n ° 4), while reappears side B at its exit from the guide at a 90 ° angle (n ° 4).
  • the ribbon continues its journey on side B, until it enters between the print head (n ° 2) and the counterpart (n ° 3) to be printed there on side B.
  • side A and B will simultaneously receive the print from the print head (No. 2).
  • the ribbon is driven by the counterpart (n ° 3) resting on the print head (n ° 2).
  • the print head (n ° 2) and the counterpart (n ° 3) can be cylindrical or flat, depending on the type of machine used, the ribbon is then fed into or out of the machine. 'impression.
  • the parts (n ° 5) or (n ° 6) are not essential.
  • the 90 ° angle guide (n ° 4) forms a 90 ° angle.
  • the top of this angle is opposite the print head.
  • the center line of this triangle is parallel to the direction of travel of the ribbon. Seen from above, this center line merges with the contiguous edges of the ribbon strand arriving in the 90 ° angle guide (n ° 4) and the ribbon strand leaving the 90 ° angle guide (n ° 4) to go to the print head.
  • Figures 4 and 5 clearly show the path of the ribbon and its passage around the guide at a 90 ° angle (n ° 4). To be edge to edge when printing, the ribbon must go up to the top of the 90 ° angle, a position it will keep on its own ( Figure 4).
  • the device also makes it possible to separate the strand arriving from the departing strand, by placing a stop or by making a step on the 2 sides of the triangle on which the ribbon slides (FIG. 5).
  • This stop or detachment will prevent the tape from rising to the top of the angle.
  • the space left free will facilitate certain operations.
  • the 90 ° angle guide (n ° 4) can be fixed or mobile.
  • the 90 ° angle guide (n ° 4) is locked on the axis (n ° 14) by a screw (n ° 15), when the correct position is determined. This movement can be eliminated and replaced by triangles of different dimensions, depending on the width of the ribbon used (figure 3), presented in this figure (n ° 3) by dotted triangles fixed by the screw (n ° 16).
  • a longitudinal movement EF or FE ( Figure 3) (direction of travel of the ribbon), allows to adjust, by sliding the ribbon on the guide at a 90 ° angle (n ° 4) the overlapping of the front printing, compared to the back printing.
  • These two movements that is to say, transverse CD or DC or longitudinal EF or FE, can also be eliminated in certain cases, when the machine is controlled by computer, by moving the printing on the screen, so as to align this impression with respect to the ribbon, and to adjust the overlap of the front with respect to the back.
  • the 90 ° angle guide (n ° 4) consists of a simple monobloc plate which characterizes the invention. This plate forms a 90 ° angle and can be made of metal, plastic or any other material. This 90 ° angle guide (n ° 4) can also consist of several parts totaling a 90 ° angle, whether these parts are on the same plane or on offset planes. Likewise, the 90 ° angle guide (n ° 4) can be replaced by a conical guide.
  • This 90 ° angle guide (n ° 4) can have another position, with respect to the print head, as long as the center line of the 90 ° angle guide (n ° 4) remains parallel to the scrolling ribbon under the print head (# 2).
  • the 90 ° angle guide (n ° 4) is then fixed on a support (n ° 7) crossed by a threaded rod (n ° 8) which allows to move the whole of the 90 ° angle guide (n ° 4) and its support (n ° 7) in the longitudinal direction EF or FE (figure 3).
  • the threaded rod (n ° 8) is fixed to the frame (n ° 9) on one side by a bearing (n ° 10) and on the other side, by a bearing (n ° 11).
  • This threaded rod (n ° 8) is controlled by a button (n ° 12). Between the button (n ° 12) and the bearing (n ° 11) a spring is inserted.
  • n ° 13 The role of this spring (n ° 13) is to dampen the tension of the ribbon and reduce the friction of the ribbon on the guide at an angle of 90 ° (n ° 4). Any other shock absorber system can also be used (hydraulic, pneumatic, etc.).
  • the (figure 3) shows the system in the case where the guide is changed to a 90 ° angle (n ° 4) depending on the width of the ribbon to be printed.
  • the advantage of the invention lies in the principle of the 90 ° angle guide (n ° 4) and its damping spring (n ° 13) which allow the side by side and simultaneous printing of the front and back on a lower cost machine and less space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
EP97420008A 1996-01-16 1997-01-15 Vorrichtung für Schön- und Widerdruck auf einer Bahn in einem Durchlauf mit einem und demselben Druckkopf Withdrawn EP0785069A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9600630 1996-01-16
FR9600630A FR2743550B1 (fr) 1996-01-16 1996-01-16 Dispositif permettant d'imprimer d'un seul passage avec la meme tete d'impression, un ruban recto/verso

Publications (1)

Publication Number Publication Date
EP0785069A1 true EP0785069A1 (de) 1997-07-23

Family

ID=9488289

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97420008A Withdrawn EP0785069A1 (de) 1996-01-16 1997-01-15 Vorrichtung für Schön- und Widerdruck auf einer Bahn in einem Durchlauf mit einem und demselben Druckkopf

Country Status (2)

Country Link
EP (1) EP0785069A1 (de)
FR (1) FR2743550B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998006580A1 (en) * 1996-08-13 1998-02-19 Ko-Pack International (Europe) Limited Method and apparatus for colour printing
WO2000013901A3 (de) * 1998-09-09 2000-06-02 Koenig & Bauer Ag Wendestangenanordnung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE173390C (de) *
US2318374A (en) * 1941-06-20 1943-05-04 Cranston Print Works Co Textile printing apparatus for printing one or both sides of fabrics
DE1039538B (de) * 1954-10-18 1958-09-25 Goebel Gmbh Maschf Vorrichtung an Druckmaschinen zum Umlenken der Bahn von Vorder- auf Rueckseitendruck
FR1485010A (fr) * 1966-06-28 1967-06-16 Appareil de traitement d'une bande
US3809303A (en) * 1969-05-02 1974-05-07 Wifag Maschf Device for guiding printed paper webs from a printing machine
US3906855A (en) * 1973-01-30 1975-09-23 Wood Industries Inc Web turning bar device
US5456176A (en) * 1994-01-11 1995-10-10 Ferd. Ruesch Ag Rotary printing press

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE173390C (de) *
US2318374A (en) * 1941-06-20 1943-05-04 Cranston Print Works Co Textile printing apparatus for printing one or both sides of fabrics
DE1039538B (de) * 1954-10-18 1958-09-25 Goebel Gmbh Maschf Vorrichtung an Druckmaschinen zum Umlenken der Bahn von Vorder- auf Rueckseitendruck
FR1485010A (fr) * 1966-06-28 1967-06-16 Appareil de traitement d'une bande
US3809303A (en) * 1969-05-02 1974-05-07 Wifag Maschf Device for guiding printed paper webs from a printing machine
US3906855A (en) * 1973-01-30 1975-09-23 Wood Industries Inc Web turning bar device
US5456176A (en) * 1994-01-11 1995-10-10 Ferd. Ruesch Ag Rotary printing press

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998006580A1 (en) * 1996-08-13 1998-02-19 Ko-Pack International (Europe) Limited Method and apparatus for colour printing
WO2000013901A3 (de) * 1998-09-09 2000-06-02 Koenig & Bauer Ag Wendestangenanordnung
US6418851B1 (en) 1998-09-09 2002-07-16 Koenig & Bauer Aktiengesellschaft Turning bar arrangement

Also Published As

Publication number Publication date
FR2743550B1 (fr) 1998-03-20
FR2743550A1 (fr) 1997-07-18

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