EP0081443A1 - Verfahren zur Voreinstellung einer Trockenoffsetmachine - Google Patents

Verfahren zur Voreinstellung einer Trockenoffsetmachine Download PDF

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Publication number
EP0081443A1
EP0081443A1 EP82420171A EP82420171A EP0081443A1 EP 0081443 A1 EP0081443 A1 EP 0081443A1 EP 82420171 A EP82420171 A EP 82420171A EP 82420171 A EP82420171 A EP 82420171A EP 0081443 A1 EP0081443 A1 EP 0081443A1
Authority
EP
European Patent Office
Prior art keywords
axes
blanket
template
axis
sector
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
Application number
EP82420171A
Other languages
English (en)
French (fr)
Other versions
EP0081443B1 (de
Inventor
Gilbert Edelmann
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.)
Albea Tubes France SAS
Original Assignee
Cebal SAS
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 Cebal SAS filed Critical Cebal SAS
Priority to AT82420171T priority Critical patent/ATE17681T1/de
Publication of EP0081443A1 publication Critical patent/EP0081443A1/de
Application granted granted Critical
Publication of EP0081443B1 publication Critical patent/EP0081443B1/de
Expired legal-status Critical Current

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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
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • B41F13/12—Registering devices
    • B41F13/16—Registering devices with means for displacing the printing formes on the cylinders
    • 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
    • B41F27/005—Attaching and registering printing formes to supports
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/36—Means for registering or alignment of print plates on print press structure

Definitions

  • the present invention relates to a method for presetting a dry offset machine intended for printing cylindrical or conical parts.
  • Many products are presented in cylindrical or conical containers, so for example in the field of cosmetics, aerosol tubes and jars are used. Glue tubes, yogurt jars and spray paints are other examples.
  • the decoration or the indications which appear on these containers are printed by means of dry offset machines. These machines are quite expensive, so it is advisable to use them almost continuously to amortize them. This is even more imperative when the printing is carried out by a machine integrated into a complete manufacturing line in which the parts are shaped, printed, dried, undergo a final machining and are even sometimes filled and packaged. In such production lines, any downtime represents a considerable loss.
  • the main characteristic of the already known solutions is that the precision of the machine adjustment is dependent on the precision with which the perforations have been made as well as the exact adjustment of the claws in the shape of the perforations. This precision is limited by the necessary characteristics of the material used to make the plates, as well as by the difficulty of producing claws which are both mobile and which however have no play. In practice, these systems are not used because they do not not give full satisfaction.
  • the adjustment of the machine shots is therefore carried out most of the time by trial and error, the duration of the operation then depending on the skill or the luck of the operator of the machine. For a four-color machine therefore having four sectors on which four plates are mounted, the setting time is approximately two hours. It is with the intention of reducing this adjustment time to approximately fifteen minutes that the present invention was made.
  • Fig. 3 does not show the image printed on the blanket as it actually appears, in fact, the templates being engraved in positive, they are "readable”, which has the consequence that the blanket is "illegible” since the image is reversed. In the drawing, this inversion has been deliberately ignored so that the reader finds the various elements in the same arrangement in all the figures.
  • the preset template is a thin plate, identical to those usually used in dry offset.
  • the template 1 is produced according to the same process as a working plate.
  • the various elements that appear on the template in the figures are first arranged on a lithorthochromatic film allowing copying on photopolymer plates, the plates then being immersed in a washing bath creating the relief.
  • Usual locating crosses 2 in photoengraving are placed on a film.
  • Two axes AA 'and BB' are added.
  • the axis AA ' is arranged parallel to the axis of rotation of the plate-holding sector on which the template will be fixed in a subsequent step.
  • the axis AA ' is located near the right hooking margin 3 of the template. Its position more or less close to said margin does not play a role.
  • the second axis BB ' is then arranged perpendicular to the axis AA' in the variant presented.
  • the direction of the axis BB ' is however not necessarily perpendicular to the axis AA', but it is preferable that the two axes form an angle between 80 and 100 ° between them.
  • the film carrying the locating crosses 2 and the axes AA 'and BB' constitutes a basic matrix.
  • the two right bars 9 and 11 are placed at a distance from the right edge 12 of the plate which varies according to the machine on which the plates will have to work. For a machine of the W1FAG type, the distance which separates the right edge 12 of the plate from the right edge 13 of the bars 9 and 11 is fixed at 40 mm.
  • the top 14 of the bar 9 is placed 25 mm from the top of the plate 15.
  • the base 16 of the bar 11 is located 25 mm from the bottom of the plate 17.
  • the two left bars 8 and 10 have the same dimensions as the two bars on the right. Their positioning on the photograph takes into account two factors. First rement, their position is determined by two perpendicular to the axis AA '. One of them is raised by the vertex 14 of the upper right bar 9. The vertex 18 of the bar 8 is aligned on this perpendicular. In the same way, the base 16 of the bar 11 and the base 19 of the bar 10 are aligned on the same perpendicular to the axis AA '.
  • the distance which separates the right side 13 of the two right bars 9 and 11 from the left side 20 of the two left bars 8 and 10 is determined by the development of the parts on which the printing will finally take place.
  • the usual diameters of the parts which are printed by means of plates of the format shown are 35, 40 and 45 mm.
  • the developments of these parts are therefore respectively 109.2 mm, 124.8 mm and 140.4 mm.
  • the distance is 124.8 mm and thus corresponds to a part 40 mm in diameter.
  • the number of templates that must be engraved depends on the number of color groups in the machine. For a dry offset press with four color groups, four templates are produced.
  • the first of these four templates includes all the elements described so far, namely the crossbeams 2, the positioning axes AA 'and BB' and the bars alignment 8, 9, 10 and 11 (fig. 2).
  • the other three templates are identical to each other, but only have crosses 2 and axes AA 'and BB' (fig. 1).
  • four perforations are made on each of them.
  • the four perforations are positioned in the same way and in the same places on each template. We practice, centered on the axis AA ', two perforations 4 and with a diameter of the order of 5 to 10 mm, one of the perforations 4 made in the top of the plate, the other 6 in the bottom.
  • perforations are circular in the drawing, but other shapes are also envisaged, in particular oblong, square or triangular.
  • Two other perforations are then made on the axis BB ', one 5 on the right of the template and centered both on the axis BB' and on the axis AA '.
  • This perforation is also provided away from the axis AA ′, but the variant shown in FIGS. 1 and 2 makes it possible subsequently to have a third reference 5 which is added to the two perforations 4 and 6 of the axis AA 'already described.
  • a second perforation 7 is made on the axis BB ', but on the left of the template this time.
  • the four templates are then bent to a curvature barely more open than that of the sectors on which the templates will be mounted. Once the templates are perforated and bent, they are machine mounted. Machine presetting can then be carried out.
  • the presetting begins with the positioning of the master template on the first color group of the machine.
  • the master jig 100 is the one which has the alignment bars 8, 9, 10 and 11 in addition to the crosses 2 and the axes AA 'and BB'.
  • the master template is fixed on the sector corresponding to the first group.
  • a test piece 21 is then placed on the workpiece mandrel 22 (fig. 3). After inking the template, a pass is made with the blanket 23. The ink is transferred from the template to the blanket 23 then, from the latter, to the test piece 21.
  • the end of the blanket 23 doesn’t is not yet adjusted and an additional part 24 protrudes.
  • the blanket 23 is in contact with the test piece 21 over a developed length greater than the development of the piece.
  • the ink that the blanker 23 has deposited on the proof piece 21 is redeposited, after the piece has made a complete revolution, on the additional part of the blanket.
  • the first patterns deposited by the blanket are the bars 8 and 20, these are printed 8 'and 10' on the piece 21 then redeposited on the blanket 8 "and 10". It is then checked that the top 18 "of the bar 8" is aligned at the same height as the top 14 of the bar 9 which marks the end of the blanket. We also check the alignment of the base 19 "of the bar 10" with the base 16 of the bar 11. If the vertices 18 "and 14 and the bases 19" and 16 are not aligned, we adjust the master template 100 on the sector by the set of fixing bars 34 (fig. 6) until said alignment is obtained. When the alignment is obtained, we have the demonstration that the axis AA 'as well as the alignment bars 8, 9, 10 and 11 are well oriented parallel to the axis of rotation of the sector.
  • the master template 100 being correctly positioned on the first sector, the sector is marked (fig. 4) by means of a stylus by tracing two marks aligned on the axis AA 'by the perforations 4 and 6 and two others marks aligned on the axis BB 'by the perforations 5 and 7.
  • the guide has a countersink 27 which follows the relief of the axis 28 and drives the stylus by sliding on the rail formed by the relief of the axis.
  • one of the three identical templates shown in fig. 1. We then pass over the blanket, but without using a proof piece this time.
  • the master template 100 which is mounted on the first sector deposits its patterns, in particular the locating crosses 2 on the blanket as in FIG. 3.
  • the second template 1 in turn deposits its patterns, as shown in FIG. 1 on the blanket.
  • the second template is then adjusted on the second sector until its locating crosses 2 exactly coincide on the blanket with the crosses 2 left by the master template 100.
  • the marking of the second is practiced sector in the same way as for the first.
  • the templates receive, in addition to the elements already described, gauges 29 making it possible to control the pressure on the blanket as well as the lining and millimeter scales 30, 31 and 32.
  • the gauges 29 are arranged differently on each of the four templates so that the gauges on each template leave a distinct imprint on the blanket.
  • the millimeter scales each have their own function.
  • Ladders 30 and 31 are arranged on the master template (fig. 7).
  • the origin of the scale 30 is placed on the blanket end line which is determined by the straight edge 13 of the alignment bars 9 and 11. As mentioned above, the blanket is longer than the development of the proof piece.
  • the scale 30 is printed from the master template on the additional part 24 of the blanket (fig. 3). Reading the reported scale 30 gives the exact indication of the length of the additional part 24 which will have to be deleted. This indication makes it possible to adjust the blanket holder sector 33 so that the real end X of the blanket coincides with the ideal end Y determined by the straight edge 13 of the alignment bars 9 and 11.
  • the second millimeter scale 31 (fig.
  • a millimeter scale 32 is arranged (fig. 8). Its center is the deferred origin of the scale 31; its axis is parallel to the axis AA '.
  • the ladder 31 is deployed over the entire length of the master jig, since it frequently happens that the sectors of a machine are in a completely de-synchronized phase.
  • the scale 32 printed by the second template for example can be found both on the far left and on the far right of the imprint left by the master template on the blanket.
  • the measurement of the correction to be made can be read directly at the point of intersection between the scale 31 and the scale 32.
  • the correction in development, ie the synchronization of the sectors, can be read on scale 31; the correction affecting the height positioning of the template on the sector can be read on the scale 32.
  • the assembly formed by the scales 31 of the master template and 32 of each of the three other templates has the same function as the locating crosses 2 , but occurs when the amplitude of the corrections is greater.
  • the machine When the machine is preset, that is to say when the axes AA 'and BB' have been traced on the four sectors, the machine is ready to receive the working shots and to start the serial printing of the parts.
  • the setting in machine of the sets of stereotypes is summarized for the operator to check the coincidence of the axes AA 'and BB' traced on the sector with the axes AA 'and BB' engraved on the stereotype (fig. 6e).
  • the operator just has to adjust the picture by the play of the fixing bars 34 (fig. 6) by bringing the axes in superposition.
  • the machine preset allows different formats to be used; in fact, the axis AA 'being close to the attachment margin 3, whatever the size of the plate, it is possible to punch two holes revealing the axis AA'. Regarding the axis BB ', it will be halfway up if the picture is large, it will be at the top of the picture if it is small.
  • the advantage of the present invention compared to already known solutions is to be able to move the adjustment moment to a certain extent, or more exactly to split the adjustment into two separate stages. your.
  • the first step is to preset the machine. This is a little longer than the setting as it is usually practical, but it has the merit of deploying a permanent effect, and therefore does not have to be repeated.
  • the second step closely dependent on the first, consists in shifting the timing of the adjustment of the plate on the sector or, more precisely, in presetting it so that the adjustment in machine is limited to a simple control, thus eliminating the groping which immobilizes the machine too much.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Printing Methods (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Amplifiers (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Pens And Brushes (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Surgical Instruments (AREA)
  • Drying Of Solid Materials (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Ceramic Products (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Vehicle Body Suspensions (AREA)
  • Treating Waste Gases (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Pinball Game Machines (AREA)
  • Looms (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Soil Working Implements (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
EP82420171A 1981-12-08 1982-12-06 Verfahren zur Voreinstellung einer Trockenoffsetmachine Expired EP0081443B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82420171T ATE17681T1 (de) 1981-12-08 1982-12-06 Verfahren zur voreinstellung einer trockenoffsetmachine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH7831/81A CH648237A5 (fr) 1981-12-08 1981-12-08 Procede de fabrication de gabarits et de cliches et leur utilisation pour le reglage d'une machine offset a sec destinee a l'impression de pieces cylindriques ou coniques.
CH7831/81 1981-12-08

Publications (2)

Publication Number Publication Date
EP0081443A1 true EP0081443A1 (de) 1983-06-15
EP0081443B1 EP0081443B1 (de) 1986-01-29

Family

ID=4331110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82420171A Expired EP0081443B1 (de) 1981-12-08 1982-12-06 Verfahren zur Voreinstellung einer Trockenoffsetmachine

Country Status (18)

Country Link
US (1) US4520730A (de)
EP (1) EP0081443B1 (de)
JP (1) JPS58104748A (de)
AT (1) ATE17681T1 (de)
BE (1) BE895274A (de)
CA (1) CA1191393A (de)
CH (1) CH648237A5 (de)
DE (1) DE3268902D1 (de)
ES (1) ES517897A0 (de)
FI (1) FI73628C (de)
FR (1) FR2517593B1 (de)
GR (1) GR77851B (de)
IT (1) IT1154386B (de)
MX (1) MX157654A (de)
NO (1) NO159984C (de)
OA (1) OA07266A (de)
PT (1) PT75943B (de)
ZA (1) ZA828948B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0381985A2 (de) * 1989-02-09 1990-08-16 Dieter Dr. Höll Verfahren zum Bedrucken von nicht-saugfähigen Materialien und Druckplatte zur Durchführung desselben

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363564A (en) * 1993-04-22 1994-11-15 E. L. Harley Inc. Printing plate mounting and proofing machine and method for using same
US5722178A (en) * 1995-05-10 1998-03-03 Wells; Harold T. Method for setting and regulating the position of webbing in a printing press using premarked makeready tape

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR438296A (fr) * 1911-12-27 1912-05-13 Karl Marie Schlueter Gabarits servant au réglage des clichés
US2580576A (en) * 1948-11-15 1952-01-01 Jr Robert R Myers Method of registering multicolor printing plates
GB871664A (en) * 1957-08-01 1961-06-28 Hall Printing Co W F Multicolour printing process
DE1486872A1 (de) * 1965-03-15 1969-05-14 Mosstype Corp Maschine zum Montieren von flexiblen Druckplatten und zum Abnehmen von Probedrucken dieser Platten
DE2045953A1 (de) * 1970-09-17 1972-03-23 Metje H Paß vorrichtung für Offset-Rollen-Rotationsmaschinen
FR2312373A1 (fr) * 1975-05-28 1976-12-24 Liege Ste Francaise Machine a imprimer en continu une empreinte sur des bouchons

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1151461A (en) * 1912-01-17 1915-08-24 Hugo Knudsen Process for making printing-plates.
US2236000A (en) * 1938-09-07 1941-03-25 John A Koessler Method for registering printing plates
US2630755A (en) * 1949-08-15 1953-03-10 Inez L Herrin Method of cutting stencils
US2711031A (en) * 1952-05-06 1955-06-21 Jr Harry C Kessler Lithographic step and repeat system
US2793442A (en) * 1955-03-11 1957-05-28 Intercompany Corp Procedure and apparatus for registering photographic sheets and the like
US3908546A (en) * 1972-10-16 1975-09-30 Motter Printing Press Co Plate clamping mechanism for printing cylinder
DE2526446A1 (de) * 1975-06-13 1976-12-23 Roland Offsetmaschf Vorrichtung zum justieren von druckplatten auf dem plattenzylinder von druckmaschinen mit hilfe einer ablesevorrichtung und auf den druckplatten einkopierten passkreuzen
US4191106A (en) * 1975-12-01 1980-03-04 K and Manufacturing Company, Inc. Printing plate clamping assembly
DE3025060A1 (de) * 1979-07-30 1981-02-19 Riso Kagaku Corp Anordnung und vorrichtung zum anbringen bzw. anheften einer folie, eines folienartigen bogens oder eines flachmaterials an einen anheftvorsprung eines formkoerpers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR438296A (fr) * 1911-12-27 1912-05-13 Karl Marie Schlueter Gabarits servant au réglage des clichés
US2580576A (en) * 1948-11-15 1952-01-01 Jr Robert R Myers Method of registering multicolor printing plates
GB871664A (en) * 1957-08-01 1961-06-28 Hall Printing Co W F Multicolour printing process
DE1486872A1 (de) * 1965-03-15 1969-05-14 Mosstype Corp Maschine zum Montieren von flexiblen Druckplatten und zum Abnehmen von Probedrucken dieser Platten
DE2045953A1 (de) * 1970-09-17 1972-03-23 Metje H Paß vorrichtung für Offset-Rollen-Rotationsmaschinen
FR2312373A1 (fr) * 1975-05-28 1976-12-24 Liege Ste Francaise Machine a imprimer en continu une empreinte sur des bouchons

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0381985A2 (de) * 1989-02-09 1990-08-16 Dieter Dr. Höll Verfahren zum Bedrucken von nicht-saugfähigen Materialien und Druckplatte zur Durchführung desselben
EP0381985A3 (de) * 1989-02-09 1991-01-02 Dieter Dr. Höll Verfahren zum Bedrucken von nicht-saugfähigen Materialien und Druckplatte zur Durchführung desselben

Also Published As

Publication number Publication date
FR2517593B1 (fr) 1986-02-14
JPS58104748A (ja) 1983-06-22
GR77851B (de) 1984-09-25
OA07266A (fr) 1984-08-31
NO159984C (no) 1989-03-01
ATE17681T1 (de) 1986-02-15
CH648237A5 (fr) 1985-03-15
ZA828948B (en) 1983-10-26
IT8224546A0 (it) 1982-12-01
ES8404913A1 (es) 1984-05-16
PT75943B (fr) 1985-02-27
FI824195A0 (fi) 1982-12-07
FI824195L (fi) 1983-06-09
EP0081443B1 (de) 1986-01-29
DE3268902D1 (en) 1986-03-13
US4520730A (en) 1985-06-04
BE895274A (fr) 1983-06-07
PT75943A (fr) 1983-01-01
NO824106L (no) 1983-06-09
CA1191393A (fr) 1985-08-06
FR2517593A1 (fr) 1983-06-10
IT1154386B (it) 1987-01-21
ES517897A0 (es) 1984-05-16
FI73628B (fi) 1987-07-31
MX157654A (es) 1988-12-08
NO159984B (no) 1988-11-21
FI73628C (fi) 1987-11-09

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