EP0283784A2 - Dispositif d'usinage complémentaire par enlèvement de matière pour machine rotative d'impression en creux - Google Patents

Dispositif d'usinage complémentaire par enlèvement de matière pour machine rotative d'impression en creux Download PDF

Info

Publication number: EP0283784A2
Authority: EP; European Patent Office
Prior art keywords: milling; carriage; printing machine; gap; drive
Prior art date: 1987-03-17
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

EP88103250A

Other languages

German (de)

English (en)

Other versions

EP0283784B1 (fr

EP0283784A3 (en

Inventor

Hans-Joachim Rothe

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.)

Manroland AG

Original Assignee

MAN Roland Druckmaschinen AG

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.)

1987-03-17

Filing date

1988-03-03

Publication date

1988-09-28

1988-03-03 Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG

1988-03-03 Priority to AT88103250T priority Critical patent/ATE68413T1/de

1988-09-28 Publication of EP0283784A2 publication Critical patent/EP0283784A2/fr

1989-09-20 Publication of EP0283784A3 publication Critical patent/EP0283784A3/de

1991-10-16 Application granted granted Critical

1991-10-16 Publication of EP0283784B1 publication Critical patent/EP0283784B1/fr

2008-03-03 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000007639 printing Methods 0.000 title claims abstract description 18
239000002184 metal Substances 0.000 title 1
238000003801 milling Methods 0.000 claims abstract description 40
150000001875 compounds Chemical class 0.000 claims abstract description 13
238000007789 sealing Methods 0.000 claims abstract description 13
238000007646 gravure printing Methods 0.000 claims description 8
238000000034 method Methods 0.000 claims description 8
230000002441 reversible effect Effects 0.000 claims description 7
230000005855 radiation Effects 0.000 claims description 4
230000002093 peripheral effect Effects 0.000 claims 1
239000004033 plastic Substances 0.000 description 5
229920003023 plastic Polymers 0.000 description 5
238000000227 grinding Methods 0.000 description 4
238000003754 machining Methods 0.000 description 4
239000000463 material Substances 0.000 description 2
238000004381 surface treatment Methods 0.000 description 2
229910000906 Bronze Inorganic materials 0.000 description 1
239000010974 bronze Substances 0.000 description 1
KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
238000011161 development Methods 0.000 description 1
230000018109 developmental process Effects 0.000 description 1
230000009969 flowable effect Effects 0.000 description 1
238000012805 post-processing Methods 0.000 description 1
238000012545 processing Methods 0.000 description 1
239000003566 sealing material Substances 0.000 description 1

Images

Classifications

- 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
- B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
- B41F27/1293—Devices for filling up the cylinder gap; Devices for removing the filler

Definitions

the invention relates to a device on a rotogravure printing machine for post-treatment of the gap filled with a sealing compound between the ends of a gravure printing plate clamped on a forme cylinder.
the amount of work for the post-treatment by grinding the surface of the gap filled with the sealing compound by hand is relatively large and requires manual skill. Under certain circumstances, the forme cylinder must be removed from the rotogravure printing machine. The machining post-processing by grinding also leads to non-smooth, rough surface structures and to the clogging tool being quickly clogged with the plastic of the sealing compound, the tool then quickly becoming unusable by smearing the grains.
the invention has for its object to enable a post-treatment of the surface of any sealing materials introduced with a higher degree of mechanization of the processing process within the gravure printing machine by cutting with a geometrically defined cutting edge.
a gravure printing plate 3 is clamped on the forme cylinder 2 of a rotogravure printing machine 1, which is only indicated in the drawing.
the two folded ends 5 are suspended in the forme cylinder 2 and clamped and tensioned in the channel 6 by means of a tensioning device indicated in FIG. 1 by arrows.
the channel 6 for hanging the rotogravure plate 3 runs parallel to the axis of the forme cylinder 2.
the gap 4 between the ends of the rotogravure plate 3 clamped on the forme cylinder 2 is filled with a sealing compound by hand or by means of special devices, which after milling a surface treatment by milling with a geometrically defined cutting edge.
a device is arranged in the rotogravure printing press 1 according to FIGS. 2 to 5, which has a milling tool 17 with its own main drive 26-28.
a compressed air motor 27 is preferably provided as the main drive, which has a tool holder 26 for receiving the milling tool 17 and is provided with a compressed air connection 28.
comparable motor gear units with an electric motor can also be used.
the compressed air motor 27 can be arranged with its drive axis radially to the forme cylinder 2 or not shown in the drawing, also axially to the forme cylinder 2.
a milling tool 17 in the form of a face milling cutter in the case of an axial arrangement with a milling cutter tool 17 in the form of a hob.
the compressed air motor 27 is received with its drive spindle in a milling slide 7.
the compressed air motor 27 can be clamped axially adjustable relative to the milling carriage 7 with the milling tool 17 located in the tool holder 26.
a threaded bushing 19 is provided, which can be clamped relative to the milling carriage 7 in that a screw 18 interacts with a slot 43 in the milling carriage 7.
the milling carriage 7 can be moved in a carriage guide on guides 8, 9 arranged parallel to the gap 4 in a first embodiment by means of a feed drive, which comprises a spindle-nut drive 15, 16 consisting, for. B. from trapezoidal lead screw and bronze nut, and has a handwheel 21 with which the torque can be transmitted to the spindle 15 via two bevel gears 20.
the spindle-nut drive 15, 16 converts the rotary movement into a straight-line movement along the gap 4.
the slide guide 8, 9, 10, 11 has side parts 10, 11 on the sides, which are detachably attached to base plates 12, 13 or the like on the inner sides of the rotogravure printing machine 1.
the base plates 12, 13 are accommodated by means of dowel pins 22 on both sides in the rotogravure printing machine and are adjustably fastened by screws 23.
the side parts 10, 11 are placed on both sides on a pin 24, which is provided at the bottom of the base plates 12, 13, while in the upper Part of base plates 12, 13 and the side parts 10, 11 are connected by screws 25.
a support 30 is provided on the milling slide 7, which has a guide roller 29 which interacts with the gravure printing plate 3.
an automatic reversing drive is provided in a further embodiment of the invention, as a result of which the generation of the torque for the feed movement along the gap 4 by hand is unnecessary.
the spindle-nut drive 15, 16 is driven by a reversible drive motor 38 via the bevel gear pair 20.
switching points are defined by stop screws 36, 37, which are arranged on the two inner sides of the frame of the rotogravure printing press 1, which are approached by left and right end positions by end switches 34, 35 fastened on both sides of the guide carriage 7.
the switching pulses are transmitted to an electrical control device 39. This device switches the reversible drive motor 38 so that the direction of rotation and the torque can be reversed.
the required switching states are implemented by a circuit as is generally known for contact-based controls, for example in the case of positioning drives or the like.
the milling tool 17 can automatically perform a reversible movement, starting from a starting position, parallel to the axis of the gap, the reversal point being determined by the two stop screws 36, 37.
all outputs and inputs are firmly connected to the electrical control device 39.
the control unit 39 contains for each function, e.g. B.
movement to the left, movement to the right of a rear derailleur, for example by a Contactor is actuated to change the direction of rotation of the reversible drive motor 38 in accordance with the applied voltages and polarities in a pole reversing circuit.
a towing member 41 is provided which has one end on the milling slide 7 and the other end a radiation source 33 which is movable along the gap 4 and which slides on guides 31, 32 is connected.
Machining with a geometrically determined cutting edge by means of the device according to the invention always permits uniform, quality-oriented finishing of the gap area, irrespective of which plastic materials form the sealing compound and which roughness and shape accuracy the surface of which receives when the gap 4 is filled.
the machining aftertreatment with reduced workload is independent of the manual skill of the operator. In contrast to grinding, there is no risk of the tool becoming smeared by the plastics.

Landscapes

Manufacture Or Reproduction Of Printing Formes (AREA)
Handling Of Sheets (AREA)

EP88103250A 1987-03-17 1988-03-03 Dispositif d'usinage complémentaire par enlèvement de matière pour machine rotative d'impression en creux Expired - Lifetime EP0283784B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT88103250T ATE68413T1 (de)	1987-03-17	1988-03-03	Vorrichtung an einer rotationstiefdruckmaschine zur spanenden nachbehandlung.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE8703987U DE8703987U1 (de)	1987-03-17	1987-03-17	Vorrichtung an einer Rotationstiefdruckmaschine zur spanenden Nachbehandlung
DE8703987U		1987-03-17

Publications (3)

Publication Number	Publication Date
EP0283784A2 true EP0283784A2 (fr)	1988-09-28
EP0283784A3 EP0283784A3 (en)	1989-09-20
EP0283784B1 EP0283784B1 (fr)	1991-10-16

Family

ID=6805964

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP88103250A Expired - Lifetime EP0283784B1 (fr)	1987-03-17	1988-03-03	Dispositif d'usinage complémentaire par enlèvement de matière pour machine rotative d'impression en creux

Country Status (3)

Country	Link
EP (1)	EP0283784B1 (fr)
AT (1)	ATE68413T1 (fr)
DE (2)	DE8703987U1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2545618A1 (de) *	1975-10-11	1977-04-21	Frankenthal Ag Albert	Formzylinder fuer tiefdruck mit einer magnetisch aufgespannten wickelplatte
DE3304946A1 (de) *	1983-02-12	1984-10-11	Albert-Frankenthal Ag, 6710 Frankenthal	Vorrichtung zum erleichtern des abnehmens von wickelplatten vom formzylinder einer tiefdruckmaschine
DK159251C (da) *	1983-03-12	1991-02-18	Basf Ag	Fremgangsmaade til lukning af spalten mellem en paa et dybtrykapparats trykformcylinder opspaendt dybtrykplades ender, samt indretning ved dybtryksapparatet, til udoevelse af fremgangsmaaden
DE3340998A1 (de) *	1983-11-12	1985-05-23	Basf Ag, 6700 Ludwigshafen	Vorrichtung zum oeffnen des mit einer verschlussmasse ausgefuellten spaltes einer tiefdruckplatte
DE3401501A1 (de) *	1984-01-18	1985-07-25	Basf Ag, 6700 Ludwigshafen	Vorrichtung zum verschliessen des spaltes zwischen den enden einer auf einen formzylinder aufgespannten tiefdruckplatte
DE3433046A1 (de) *	1984-09-08	1986-03-20	Basf Ag, 6700 Ludwigshafen	Verfahren zum verschliessen des spaltes zwischen den enden von auf formzylindern aufgespannten tiefdruckplatten
DE3433045A1 (de) *	1984-09-08	1986-03-20	Basf Ag, 6700 Ludwigshafen	Lichthaertbare verschlussmasse, insbesondere zum verschliessen des spaltes zwischen den enden von auf formzylinder aufgespannten tiefdruckplatten

1987
- 1987-03-17 DE DE8703987U patent/DE8703987U1/de not_active Expired
1988
- 1988-03-03 DE DE8888103250T patent/DE3865472D1/de not_active Expired - Lifetime
- 1988-03-03 AT AT88103250T patent/ATE68413T1/de not_active IP Right Cessation
- 1988-03-03 EP EP88103250A patent/EP0283784B1/fr not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0283784B1 (fr)	1991-10-16
ATE68413T1 (de)	1991-11-15
DE8703987U1 (de)	1987-06-11
DE3865472D1 (de)	1991-11-21
EP0283784A3 (en)	1989-09-20

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1988-08-13	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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1991-08-02	ITF	It: translation for a ep patent filed
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1992-08-20	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1992-10-07	26N	No opposition filed
1995-01-31	EAL	Se: european patent in force in sweden	Ref document number: 88103250.2
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