EP0352625A2 - Dispositif de pliage de feuilles pour machine d'impression - Google Patents

Dispositif de pliage de feuilles pour machine d'impression Download PDF

Info

Publication number: EP0352625A2
Authority: EP; European Patent Office
Prior art keywords: eccentric shaft; cylinder; drive; pliers; operatively connected
Prior art date: 1988-07-29
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

EP89113278A

Other languages

German (de)

English (en)

Other versions

EP0352625A3 (fr

EP0352625B1 (fr

Inventor

Mario Pane

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.)

Officine Meccaniche Giovanni Cerutti SpA

Original Assignee

Officine Meccaniche Giovanni Cerutti SpA

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.)

1988-07-29

Filing date

1989-07-19

Publication date

1990-01-31

1989-07-19 Application filed by Officine Meccaniche Giovanni Cerutti SpA filed Critical Officine Meccaniche Giovanni Cerutti SpA

1989-07-19 Priority to AT89113278T priority Critical patent/ATE89512T1/de

1990-01-31 Publication of EP0352625A2 publication Critical patent/EP0352625A2/fr

1991-01-16 Publication of EP0352625A3 publication Critical patent/EP0352625A3/fr

1993-05-19 Application granted granted Critical

1993-05-19 Publication of EP0352625B1 publication Critical patent/EP0352625B1/fr

2009-07-19 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/16—Rotary folders
- B65H45/162—Rotary folders with folding jaw cylinders
- B65H45/163—Details of folding jaws therefor

Definitions

the above invention relates to a sheet folding machine for a printing machine.
a folding process of the sheets is carried out using a plurality of pliers-like, controllable grippers.
the pliers consist of a fixed part of the pliers and a movable part of the pliers and are distributed over the entire axial length of the folding cylinder.
two flanges in the form of disks arranged side by side are provided on each side of the cylinder, which are mounted one below the other and opposite the cylinder by means of screws and continuous shafts.
the disc-like flanges are against each other opposite directions of rotation pivotable using an eccentric shaft.
This eccentric shaft is used to adjust the pliers gap (d). It is continuous and has offset eccentrics for the disk-like flanges.
the eccentric shaft protrudes from the folding cylinder via a hexagon head, which enables the eccentric shaft to be operated by hand by attaching a key.
Each movable pliers part is operatively connected via a ball bearing or similar means to a cam which controls the opening and closing movement of the movable pliers parts relative to the fixed pliers parts during the rotational movement of the folding cylinder.
the structure of a folding cylinder described so far is known in printing presses.
the folding cylinder in order to change the pliers gap between the permanently arranged pliers parts and the movably arranged pliers parts, the folding cylinder has to be stopped, which in turn requires the entire rotary printing machine to be stopped.
an operator has to loosen all of the clamping screws of the disk-shaped flanges on both sides of the folding cylinder, for example, seven clamping screws must be opened on each folding cylinder side with seven intended folding pliers, after which the operator must carry out the necessary adjustment work by using an appropriate one Key on the protruding hexagon head of the eccentric shaft. After carrying out the adjustment work, the operator has to tighten all the clamping screws again and only then can the rotary printing machine be put into operation again.
the setting process of the pliers gap is still a process that is carried out empirically. As already mentioned before, these adjustment processes have to be carried out very precisely, readjustments often have to be carried out in a fraction of a few millimeters or tenths of a millimeter. If it can be determined after restarting the rotary printing press that the setting work was not carried out satisfactorily or that the sheets are not gripped and held securely by the folding pliers after the setting process has been carried out, it will be necessary again to stop the rotary printing press in order to carry out the described setting operations again in their entirety. It can be stated that the setting processes of the folding pliers gap still represent one of the working processes for which the entire rotary printing press has to be stopped.
the object of the above invention is to propose an improved folding cylinder with which the disadvantages of the known folding cylinders are eliminated and in which a direct, automatic and continuous adjustment of the folding pliers gap is possible while the rotary printing press is running.
the object according to the invention is achieved with the folding cylinder according to the invention for a printing press in that a controllable rotary drive is assigned to the drive end of the eccentric shaft provided for the setting process of the pliers gap, which allows fine adjustment in both directions of rotation of the eccentric shaft, and that the rotary drive directly on the folding cylinder for Example on an outside disc-shaped flange of the folding cylinder is arranged. Further features of the folding cylinder according to the invention can be found in the subclaims and the description.
the setting process of the folding pliers gap can take place with the folding cylinder rotating, it is not necessary to stop the rotary printing press. Furthermore, the setting process takes place in real time. The time required for the setting process is only a few seconds.
the operator can directly and visually check the extent of the setting made, that is, the gripping process of the folding pliers can be checked directly on the sheet being driven. In the case of further fine adjustment processes, these can be carried out quickly by the operator, for example by acting on a direction reversing device, in order thereby to carry out a fine adjustment in the opposite direction and to enable safe and perfect gripping of the sheets without damaging the individual sheets.
the drive device is not designed to be reversible with regard to the transmission of force.
This non-reversible drive device can consist, for example, of a screw spindle in connection with a worm wheel, which is driven by a pneumatic motor.
the use of a pneumatic motor has the advantage that it takes up little space and can be mounted directly on the geared motor on the folding cylinder.
the use of a pneumatic motor also enables a sensitive adjustment process to be carried out.
Another advantage of the folding cylinder according to the invention can be seen in the fact that an automatic adjustment of the folding pliers gap is made possible by the fact that an encoder or similar position determining means is assigned to the eccentric shaft, whereby the encoder in turn can be assigned to a presetting device which acts on the controllable motor. This makes it possible to quickly and accurately set a large number of different gap widths for the folding pliers in advance by calling them up.
a folding cylinder which essentially and in a known manner, as shown schematically, has a cylinder body 2, which has a shaft 3, which is mounted in a frame, not shown, in the frame of a printing press.
the two ends of the cylinder body 2 receive a corresponding disc-shaped inner flange 4 and an outer flange 5.
the pliers which are arranged uniformly over the circumference of the folding cylinder 1, are identified by 6.
the folding pliers 6 consist of a fixed pliers part 7, which is on the inner flange 4th is arranged and from a movable pliers part 8 which is pivotally arranged at point 9 of the outer disc-shaped flanges 5.
the pivoting of the movable pliers part 8 takes place via a drive arm 10 and a ball bearing 11 which cooperates with a cam plate 12, as indicated schematically in FIGS. 1 and 2.
the eccentric shaft 13 for the adjustment process has an end 14 which enables the eccentric shaft 13 to rotate.
An eccentric piece 15 is mounted in the inner flange 4 and an eccentric part 16 of the eccentric shaft 13 is mounted in the outer flange 5. With 4a and 5a continuous tie rods are marked, which connect the flanges 4 and 5 cage-like.
a worm wheel 17 is arranged, with which a threaded spindle 18 is operatively connected, which is arranged on the output shaft 19 of a reducing drive 20.
a drive of the Harmony Drive (USA) type is advantageously used as the reducing drive, this drive advantageously being operatively connected to a pneumatic motor 21.
the line for the supply of compressed air is indicated schematically at 22. 23 with a reversing device is marked, which for the supply of compressed air in the line 24 or in the Line 25 is used to drive the motor 21.
the motor 21 can be driven either in one or the other direction of rotation.
a rotatable distributor 26 is provided on the shaft 13, which ensures the constant supply of compressed air to the lines 24 and 25 via the shaft 13, around the drive devices 21, 20 and 18, which are fixed via the part 27 on the folding cylinder 1 or are arranged on the outer flange 5 of the shaft end 14 to be supplied with compressed air.
the eccentric shaft 13 has at its end 30 an encoder 31 for determining the respectively assumed angular position of the eccentric shaft 13.
the encoder 31 or a similar device for determining the exact angular position of the eccentric shaft is operatively connected to an NC control device 35 via the connecting lines 32 and 33 and via a brush arrangement 34.
the operation of the improved folding cylinder is as follows: If the pliers gap (d) is to be enlarged or reduced, it is sufficient to drive the motor 21 in one or the other direction of rotation via a control switch 23. There is a corresponding rotary movement of the eccentric shaft 13, which is responsible for the adjustment process. So there can be a rotary movement of the Eccentric shaft 13 can be made in one or the other direction. This rotary movement can take place with the folding cylinder rotating and with the rotary printing press running.
the operator will therefore change the pliers gap by acting on the control switch 23 and by inspecting the folding process by checking the folded sheets.
the NC control unit 35 acts directly on the motor 21 or on the control switch 23 with the aid of the encoder 31.
the adjustment device described is advantageously equipped with a pneumatic motor which is equipped with a reduction gear consisting of worm wheel and threaded spindle.
a pneumatic motor which is equipped with a reduction gear consisting of worm wheel and threaded spindle.
you can too electric drives are provided for the adjustment process of the gap width, also in this case the output can take place with a gear mechanism which is in operative connection with the protruding end 14 of the eccentric shaft 13.
a hydraulic device for example a piston-cylinder unit with a toothed rack, which is provided on a toothed wheel which is connected to the projecting end 14 of the eccentric shaft 13.
the design of the eccentric shaft 13 can also be freely designed without leaving the scope of the invention.

Landscapes

Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Inorganic Insulating Materials (AREA)

EP89113278A 1988-07-29 1989-07-19 Dispositif de pliage de feuilles pour machine d'impression Expired - Lifetime EP0352625B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT89113278T ATE89512T1 (de)	1988-07-29	1989-07-19	Bogenfalzeinrichtung fuer eine druckmaschine.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
IT8821578A IT1227324B (it)	1988-07-29	1988-07-29	Piegatrice perfezionata per segnature prodotte da una macchina da stampa.
IT2157888		1988-07-29

Publications (3)

Publication Number	Publication Date
EP0352625A2 true EP0352625A2 (fr)	1990-01-31
EP0352625A3 EP0352625A3 (fr)	1991-01-16
EP0352625B1 EP0352625B1 (fr)	1993-05-19

Family

ID=11183869

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP89113278A Expired - Lifetime EP0352625B1 (fr)	1988-07-29	1989-07-19	Dispositif de pliage de feuilles pour machine d'impression

Country Status (4)

Country	Link
EP (1)	EP0352625B1 (fr)
AT (1)	ATE89512T1 (fr)
DE (1)	DE58904400D1 (fr)
IT (1)	IT1227324B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0368221A3 (en) *	1988-11-11	1990-10-24	Koenig & Bauer Aktiengesellschaft	Folding jaw cylinder for a rotary printing press
EP0510337A1 (fr) *	1991-03-27	1992-10-28	M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft	Dispositif de réglage des éléments en rotation dans une rotative
DE4136792A1 (de) *	1991-11-08	1993-05-13	Heidelberger Druckmasch Ag	Einrichtung zur automatischen falzverstellung im falzapparat von rotationsdruckmaschinen
EP0652105A1 (fr) *	1993-11-04	1995-05-10	MAN Roland Druckmaschinen AG	Cylindre de transfert de feuilles pour machine à imprimer
FR2716141A1 (fr) *	1994-02-15	1995-08-18	Roland Man Druckmasch	Dispositif pour régler les volets plieurs d'un cylindree à volets plieurs.
EP0749928A1 (fr) *	1995-06-23	1996-12-27	MAN Roland Druckmaschinen AG	Cylindre de pliage
WO1998028139A1 (fr) *	1996-12-21	1998-07-02	Koenig & Bauer Ag	Cylindre a volets de pliage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102006005121A1 (de) *	2006-02-04	2007-08-09	Peter Mayr	Falzwerk einer Druckmaschine mit mindestens einer Steuervorrichtung für Funktionseinheiten

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1561073B2 (de) *	1967-04-18	1971-09-02	Schnellpressenfabrik Koenig & Bauer AG, 8700 Wurzburg	Variabler falzapparat am rollenrotationsdruckmaschinen
DE2537920C3 (de) *	1975-08-26	1979-07-12	Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg	Falzzylinder
DE3028468C1 (de) *	1980-07-26	1981-12-24	Koenig & Bauer AG, 8700 Würzburg	Kupplung fuer einen Falzapparatzylinder fuer veraenderliches Format
DE3217169C2 (de) *	1982-05-07	1985-08-08	Koenig & Bauer AG, 8700 Würzburg	Falzmesserzylinder
DE3220414C2 (de) *	1982-05-29	1985-06-27	Heidelberger Druckmaschinen Ag, 6900 Heidelberg	Vorrichtung zum Einstellen der Falzklappe eines Klappenzylinders im Falzapparat von Rotationsdruckmaschinen

1988
- 1988-07-29 IT IT8821578A patent/IT1227324B/it active
1989
- 1989-07-19 AT AT89113278T patent/ATE89512T1/de not_active IP Right Cessation
- 1989-07-19 EP EP89113278A patent/EP0352625B1/fr not_active Expired - Lifetime
- 1989-07-19 DE DE8989113278T patent/DE58904400D1/de not_active Expired - Fee Related

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0368221A3 (en) *	1988-11-11	1990-10-24	Koenig & Bauer Aktiengesellschaft	Folding jaw cylinder for a rotary printing press
EP0510337A1 (fr) *	1991-03-27	1992-10-28	M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft	Dispositif de réglage des éléments en rotation dans une rotative
DE4136792A1 (de) *	1991-11-08	1993-05-13	Heidelberger Druckmasch Ag	Einrichtung zur automatischen falzverstellung im falzapparat von rotationsdruckmaschinen
US5443437A (en) *	1991-11-08	1995-08-22	Heidelberger Druckmaschinen	Device for automatically adjusting a fold in a folding apparatus of a rotary printing machine
EP0652105A1 (fr) *	1993-11-04	1995-05-10	MAN Roland Druckmaschinen AG	Cylindre de transfert de feuilles pour machine à imprimer
FR2716141A1 (fr) *	1994-02-15	1995-08-18	Roland Man Druckmasch	Dispositif pour régler les volets plieurs d'un cylindree à volets plieurs.
EP0749928A1 (fr) *	1995-06-23	1996-12-27	MAN Roland Druckmaschinen AG	Cylindre de pliage
US5782464A (en) *	1995-06-23	1998-07-21	Man Roland Druckmaschinen Ag	Folding cylinder
WO1998028139A1 (fr) *	1996-12-21	1998-07-02	Koenig & Bauer Ag	Cylindre a volets de pliage

Also Published As

Publication number	Publication date
ATE89512T1 (de)	1993-06-15
DE58904400D1 (de)	1993-06-24
IT8821578A0 (it)	1988-07-29
IT1227324B (it)	1991-04-08
EP0352625A3 (fr)	1991-01-16
EP0352625B1 (fr)	1993-05-19

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1989-12-15	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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