EP1219414B1 - Verfahren und Vorrichtung zur Einstellung des Ruheabstandes eines Gravurstichels von der Zylinderoberfläche eines Tiefdruckformzylinders - Google Patents
Verfahren und Vorrichtung zur Einstellung des Ruheabstandes eines Gravurstichels von der Zylinderoberfläche eines Tiefdruckformzylinders Download PDFInfo
- Publication number
- EP1219414B1 EP1219414B1 EP01127506A EP01127506A EP1219414B1 EP 1219414 B1 EP1219414 B1 EP 1219414B1 EP 01127506 A EP01127506 A EP 01127506A EP 01127506 A EP01127506 A EP 01127506A EP 1219414 B1 EP1219414 B1 EP 1219414B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- engraving
- cylinder
- setting
- engraving stylus
- stylus
- 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
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/02—Engraving; Heads therefor
- B41C1/04—Engraving; Heads therefor using heads controlled by an electric information signal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
- B41M2205/16—Correction processes or materials
Definitions
- the invention relates to a method for adjusting the rest distance of a gravure stylus for engraving a gravure cylinder from the cylinder surface the gravure cylinder with a transverse to the axis of Rotogravure cylinder adjustable sliding foot, which leads to the leadership of the Gleitfuß connected engraving stylus along the cylinder surface during the Engraving is provided.
- the invention relates to a setting device, preferably for implementation the aforementioned method.
- For gravure printing is usually a printing plate in the cylinder surface of a Rotogravure cylinder with one engraving stylus or with several engraving styli engraved.
- the engraving stylus tip usually consists of diamond.
- the engraving stylus For engraving, the engraving stylus with a predetermined frequency and Amplitude driven vibrating. This basic vibration will be the most serious Image information superimposed as a signal, so that the engraving stylus according to the Image information at its vibration with different depth in the cylinder surface entry or not.
- the gravure printing cylinder rotatably driven, and it becomes the engraving stylus continuously or in steps moved in the axial direction along the cylinder surface to a continuation of Engraving image, which usually consists of a matrix of wells reach. Its relative movement over the cylinder surface is supported engraving head comprising the engraving stylus via a Gleitfuß, also preferred made of diamond, on the cylinder surface.
- This gliding foot can be used for distance variation of the engraving head of the cylinder surface mostly by means of a Spindle transversely to the axis of the gravure cylinder further retracted or extended where "transverse" is not necessarily perpendicular to the axis and the Gleitfuß also does not necessarily have to lie in a radial to the axis, but For example, it can also be aligned secantially.
- the engraving stylus When the vibration drive is switched off, the engraving stylus is in its rest position in a small clearance to the cylinder surface, this rest distance is specified by the adjustment of the extension length of Gleitfußes. Of course, this pitch must be very precise, so that the image information as intended engraved in the cylinder surface.
- the position of the engraving point corresponds to the zero crossing of the amplitude of the basic vibration of the engraving stylus without image information or with the image information at the corresponding Place the cylinder surface not to engrave.
- the rest distance is z. B. 3 to 5 microns, preferably 4 microns, and should be at least 10% be set exactly.
- the invention is therefore based on the object, the adjustment of the rest distance a gravure stylus for gravure engraving more economical, preferably also more precise and reproducible.
- This object is in process view in a method of the aforementioned Genus according to the invention achieved in that the adjustment of the rest distance with respect to a cylinder surface replacing or representing Reference surface is made.
- the engraving stylus is in principle in a tangential plane of the cylinder surface works, can, as after a development of the invention Provided method for easier adjustment and handling and device a device according to the invention as a reference surface a plane, preferably a flat surface of a plate can be used.
- control should and measurement, possibly also the adjustment itself, as objective as possible and reproducible, possibly even automated.
- the engraving stylus by retracting the spindle of the Gleitfußes be moved against a resilient portion of the reference surface, whose yielding is registered and measured with a sensor. This can then taken with the desired accuracy as a reference for adjustment be, with the necessary movements preferred motor and not through A person can be made manually to get a reproducible precision reach and jerky movements that can destroy the engraving stylus, too avoid. It can also be taken to ensure that the setting always is made with a certain direction of movement of the engraving stylus, to system hystereses or spindle inaccuracies in the measurement avoid. Of course, this also applies to other than mechanical control methods.
- optical Method Another possibility of control and measurement is optical Method.
- Fig. 1 shows schematically in a side view of the conventional working position an engraving head 1 in an engraving machine, not shown in a Side view.
- the engraving head 1 is to the cylinder surface of a gravure cylinder 2 employed.
- An engraving stylus 3 is provided with a stylus holder 4 pivotable on the engraving head 1 and its, in the illustrated embodiment 15 ° inclined Stichelachse arranged 5 vibrating driven.
- the engraving head 1 is supported by a Gleitfuß 6 on the cylinder surface.
- the sliding foot 6 can be moved in and out with a spindle 7 and a dial 8, whereby the rest distance of the tip of the engraving stylus 3 from the cylinder surface is set.
- the engraving head 1 is resiliently mounted on a support 9, not shown, and about leaf springs 10, which serve as a swivel, pivotally mounted and supported on coil springs 11.
- Fig. 2 shows the area of Fig. 1 again in plan view. Same components are, as in the following figures, with the same reference numbers designated as in Fig. 1st
- FIG. 3 shows a first embodiment of an adjusting device according to the invention, which works electromechanically, in plan view.
- the measuring pin 13 is softly spring-mounted with a spring 15 to a Damage to the engraving stylus 3 to avoid. Also, therefore, becomes an engine used in place of the hand wheel 8 to control the movement of the engraving stylus to carry out.
- the measuring pin 13 closes undeflected with its front side precisely with a Surface of a ground stop plate 16 for the Gleitfuß 6 from.
- Fig. 4 shows the embodiment of Fig. 3 in a side view.
- the stop plate 16 with sensor 14 is for a trouble-free Stichel Cart folded.
- the newly used engraving stylus can also be used in this position Help of a camera, not shown, are adjusted in height. This will be the engraving head 1 in a corresponding measuring device outside of an engraving machine parked on a support 17, on which the stop plate 16 and the Sensor 14 are pivoted to a stop 19 pivotally.
- Fig. 5 shows the device of FIG. 4 again in the side view at also folded drive unit (motor 18 and V-belt 20) for the Gleitfuß. 6 or the spindle 7, to a change or removal and introduction of the allow all the engraving head 1 in and out of the measuring device.
- the spindle 7 has a pin 21st on.
- FIG. 6 shows a second embodiment of an adjusting device according to the invention, which works visually, in a side view. This time will be directly the Position of the stylus tip of the engraving stylus 3 with a microscope 22nd equipped camera 23, which is located above the engraving stylus 3, observed and measure. For measurement, the microscope 22 has an eyepiece micrometer on. The distance becomes the surface (reference surface 25) of a special Measure reference plate 24.
- FIG. 7 shows the device according to FIG. 6 in plan view.
- the observation area the camera 23 or the microscope, not shown in FIGS. 7 and 7a 22 is marked there as a detail with a dashed line and designated Vlla. This detail is highlighted in Fig. 7a.
- the reference surface 25 of the reference plate 24 is reflective. That is why with the Camera not only to recognize the stylus tip of the engraving stylus 3 itself, but also their mirror image 3 'in the reference surface. This can set the stylus tip symmetrical with respect to its own mirror image be what with a scale (eyepiece micrometer 26) in Okularsichtfeld 27 of the microscope 22 is measurable or calibratable.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Description
- Fig. 1
- einen an einen Tiefdruckformzylinder angestellten Gravierkopf in einer Seitenansicht in einer nicht näher dargestellten Graviermaschine,
- Fig. 2
- den in Fig. 1 dargestellten Bereich in der Draufsicht,
- Fig. 3
- ein erstes, elektromechanisches Ausführungsbeispiel einer erfindungsgemäßen Einstellvorrichtung in der Draufsicht,
- Fig. 4
- das Ausführungsbeispiel gem. Fig. 3 in einer Seitenansicht für einen Stichelwechsel,
- Fig. 5
- das Ausführungsbeispiel gem. Fig. 4 für einen Gravierkopfwechsel,
- Fig. 6
- ein zweites, optisches Ausführungsbeispiel einer erfindungsgemäßen Einstellvorrichtung in einer Seitenansicht,
- Fig. 7
- das Ausführungsbeispiel gem. Fig. 6 in der Draufsicht und
- Fig. 7a
- das Detail Vlla aus Fig. 7 in einer Detailansicht.
Claims (15)
- Verfahren zur Einstellung des Ruheabstandes eines Gravurstichels für das Gravieren eines Tiefdruckformzylinders von der Zylinderoberfläche des Tiefdruckformzylinders unter Einbeziehung eines in Richtung quer zur Achse des Tiefdruckformzylinders verstellbaren Gleitfußes zur Führung des mit dem Gleitfuß verbundenen Gravurstichels entlang der Zylinderoberfläche,
dadurch gekennzeichnet, daß die Einstellung des Ruheabstandes bezüglich einer die Zylinderoberfläche ersetzenden bzw. repräsentierenden Referenzfläche vorgenommen wird. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Gleitfuß mit dem mit ihm verbundenen Gravurstichel aus seiner Arbeitstellung in einer Graviermaschine vor der Einstellung verbracht wird und nach der Einstellung in die Arbeitsstellung zurück verbracht wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß als Referenzfläche eine ebene Fläche, vorzugsweise einer Platte, verwendet wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Einstellung mechanisch oder elektromechanisch kontrolliert und gemessen wird.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß bei der Einstellung der Gravurstichel definiert gegen einen beweglichen Anschlag gefahren bzw. bewegt wird, dessen Bewegung, vorzugsweise mittels einem Sensor, quantitativ kontrolliert und gemessen wird.
- Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß der Gravurstichel maschinell und gesteuert bewegt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Einstellung optisch kontrolliert und gemessen wird.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß ein Meß- bzw. Skalenmikroskop verwendet wird.
- Vorrichtung zur Einstellung des Ruheabstandes eines Gravurstichels (3) für das Gravieren eines Tiefdruckformzylinders (2) von der Zylinderoberfläche des Tiefdruckformzylinders unter Einbeziehung eines in Richtung quer zur Achse des Tiefdruckformzylinders verstellbaren Gleitfußes zur Führung des mit dem Gleitfuß (6) verbundenen Gravurstichels entlang der Zylinderoberfläche, vorzugsweise zur Durchführung des Verfahrens nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß sie eine die Zylinderfläche ersetzende Referenzfläche umfaßt. - Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß die Referenzfläche eben ausgebildet ist.
- Vorrichtung nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß sie eine Meß- und Kontrolleinrichtung umfaßt.
- Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß die Meß- und Kontrolleinrichtung elektromechanisch arbeitet.
- Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß die Meß- und Kontrolleinrichtung einen Bewegungssensor umfaßt.
- Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß die Meß- und Kontrolleinrichtung optisch arbeitet.
- Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, daß die Referenzfläche verspiegelt oder spiegelnd ist und daß von der Meß- und Kontrolleinrichtung die Spitze des Gravurstichels und gleichzeitig ihr Spiegelbild erfaßt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10064813 | 2000-12-22 | ||
DE10064813 | 2000-12-22 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1219414A2 EP1219414A2 (de) | 2002-07-03 |
EP1219414A3 EP1219414A3 (de) | 2004-01-02 |
EP1219414B1 true EP1219414B1 (de) | 2005-04-13 |
Family
ID=7668833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01127506A Expired - Lifetime EP1219414B1 (de) | 2000-12-22 | 2001-11-17 | Verfahren und Vorrichtung zur Einstellung des Ruheabstandes eines Gravurstichels von der Zylinderoberfläche eines Tiefdruckformzylinders |
Country Status (4)
Country | Link |
---|---|
US (1) | US7031027B2 (de) |
EP (1) | EP1219414B1 (de) |
JP (1) | JP2002225215A (de) |
DE (2) | DE50105897D1 (de) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4837941A (en) * | 1987-10-28 | 1989-06-13 | Dana Corporation | Preset tool gauge |
US4868994A (en) * | 1988-07-25 | 1989-09-26 | Pirce Kent H | Method and equipment for determining tool offsets from a reference position |
US5867280A (en) * | 1993-02-25 | 1999-02-02 | Ohio Electronic Engravers, Inc. | Engraver with automatic tool changer |
US5737090A (en) * | 1993-02-25 | 1998-04-07 | Ohio Electronic Engravers, Inc. | System and method for focusing, imaging and measuring areas on a workpiece engraved by an engraver |
US5454306A (en) * | 1993-07-12 | 1995-10-03 | Ohio Electric Engravers, Inc. | Engraving head platform |
US5475914A (en) * | 1993-08-10 | 1995-12-19 | Ohio Electronic Engravers, Inc. | Engraving head with cartridge mounted components |
JP2895719B2 (ja) * | 1993-09-22 | 1999-05-24 | 大日本スクリーン製造株式会社 | グラビア彫刻機の彫刻ヘッド制御装置 |
US5652659A (en) * | 1995-10-09 | 1997-07-29 | Ohio Electronic Engravers, Inc. | System and method for measuring run-out and other characteristics of a workpiece mounted on an engraver |
DE19708469C2 (de) * | 1997-02-20 | 1998-12-24 | Gruner & Jahr | Verfahren zur Kalibrierung eines Graviersystems und Gravierverfahren |
JP2000062395A (ja) * | 1998-08-24 | 2000-02-29 | Ando Electric Co Ltd | 彫刻ペン |
-
2001
- 2001-11-17 EP EP01127506A patent/EP1219414B1/de not_active Expired - Lifetime
- 2001-11-17 DE DE50105897T patent/DE50105897D1/de not_active Expired - Lifetime
- 2001-11-27 DE DE10158084A patent/DE10158084A1/de not_active Ceased
- 2001-12-19 US US10/025,015 patent/US7031027B2/en not_active Expired - Lifetime
- 2001-12-21 JP JP2001389725A patent/JP2002225215A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP1219414A2 (de) | 2002-07-03 |
US7031027B2 (en) | 2006-04-18 |
JP2002225215A (ja) | 2002-08-14 |
EP1219414A3 (de) | 2004-01-02 |
DE50105897D1 (de) | 2005-05-19 |
US20020089697A1 (en) | 2002-07-11 |
DE10158084A1 (de) | 2002-07-18 |
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