EP0243700A2 - Dispositif de sécurité pour une rotative d'impression - Google Patents

Dispositif de sécurité pour une rotative d'impression Download PDF

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Publication number
EP0243700A2
EP0243700A2 EP87104740A EP87104740A EP0243700A2 EP 0243700 A2 EP0243700 A2 EP 0243700A2 EP 87104740 A EP87104740 A EP 87104740A EP 87104740 A EP87104740 A EP 87104740A EP 0243700 A2 EP0243700 A2 EP 0243700A2
Authority
EP
European Patent Office
Prior art keywords
drum
coupling wheel
turning drum
coupling
turning
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
EP87104740A
Other languages
German (de)
English (en)
Other versions
EP0243700A3 (en
EP0243700B1 (fr
Inventor
Willi Becker
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger 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.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0243700A2 publication Critical patent/EP0243700A2/fr
Publication of EP0243700A3 publication Critical patent/EP0243700A3/de
Application granted granted Critical
Publication of EP0243700B1 publication Critical patent/EP0243700B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers
    • B41F21/106—Combinations of transfer drums and grippers for reversing sheets, e.g. for perfecting machine

Definitions

  • the invention relates to a device for securing a rotary printing press when printing sheets in perfecting and reprinting according to the preamble of claim 1.
  • the sheet to be printed is transferred from a first transfer drum to a storage drum, which has two sheet support surfaces on its circumference, during the sheet run in fine and reprint printing.
  • a storage drum which has two sheet support surfaces on its circumference
  • the sheet on the storage drum is guided by the rows of grippers present here with its leading edge at the tangent point between the storage drum and a subsequent turning drum.
  • the rear edge of the sheet is held by suction elements on the storage drum. As soon as the trailing edge of the sheet held by the suction elements reaches the said tangent point, it is gripped by a gripper mechanism of the turning drum.
  • the gripper mechanism of the turning drum is e.g. so-called pliers grippers.
  • the storage drum therefore consists of a cylinder body with two drum bodies which can be rotated into one another like a comb, so that the front grippers grip an arc of any length can and the trailing drum body with the attached suction rail to the respective format is adjustable (DE-PS 26 32 243).
  • the reversing drum With the adjustment of the trailing drum body of the storage drum, the reversing drum is adjusted at the same time, so that the pliers grippers present here exactly take over the trailing sheet end from the reversing drum, in order to then carry out the reprint in the next printing unit.
  • a known device for securing a rotary printing press is shown in DE-PS 26 20 392, in which the individual adjustment processes and the system-related function adjustment are secured when switching to fine and reprinting. This ensures that the machine personnel carry out all the necessary individual adjustments.
  • this known design does not guarantee that e.g. every single clamping screw is tightened exactly and also offers no guarantee that an unwanted adjustment will not take place while the machine is running.
  • the object is achieved with the characterizing features of claim 1.
  • the coupling wheels provided on the trailing drum body of the storage drum and on the journal of the turning drum and their mechanical coupling ensure that both modules are correctly adjusted during the format adjustment.
  • the switching impulse given in the event of an incorrect adjustment prevents the machine from starting up when the machine is at a standstill and causes the machine to stop when the machine is running.
  • the given signal draws the printer's attention to the error, so that damage is avoided with relatively simple means.
  • the subclaims characterize advantageous embodiments of the invention, wherein toothed belts, intermediate wheels and, instead, chains could be used to couple the wheels.
  • the triggered signal can be an optical or acoustic signal, as is common in printing press construction.
  • the drums shown in FIG. 1 are provided between two printing units of a sheet-fed rotary printing press, the Ubegabetrommel 1 takes over the printed sheet from a printing unit and transfers it to the gripper rows 2, 3 of a storage drum 4.
  • the storage drum 4 consists of a leading drum body 5, to which the gripper rows 2, 3 are fastened, and a trailing drum body 6, to which suction rails 7, 8 are fastened for the trailing sheet end.
  • the two drum bodies 5,6 are comb-like and can be pivoted relative to one another in such a way that the distance between the gripper rows 2, 3 and the suction rails 7, 8 can be changed in accordance with the sheet format to be processed.
  • the printed sheet is taken over at its end by pliers grippers 9 of a turning drum 10 and fed to the next printing unit.
  • the end of the sheet sucked in by the suction rails 7, 8 is in this case transported with great accuracy by the gripper grippers 9 in order to be able to carry out further processing in accordance with the register.
  • the pliers grippers 9 have gripped the end of the bow, the rows of grippers 2 and 3 open and release the bow, so that when the turning drum continues to rotate, the bow of the Storage drum is pulled off.
  • the pliers grippers 9 perform a rotary movement of approximately 180 ° counter to the direction of rotation of the turning drum (FIG. 1).
  • the transfer drum 1, the storage drum 4 and the turning drum 10 are mounted in the machine side frames 11, 12 and are driven via spur gears 13-17.
  • a coupling wheel 18 is attached to the trailing drum body 6 of the storage drum 4, e.g. coupled by means of screws 19 or carriers.
  • a spur gear 20 engages in the coupling wheel 18 and is fixed on a shaft 21 which is rotatably mounted in the machine side frame 12.
  • a toothed belt pulley 22 is clamped on the opposite end of the shaft 21 in the embodiment according to FIG. 2, the clamping serving to set a basic position via the clamping screw 23.
  • the toothed belt pulley 22 is coupled to a coupling wheel 25, which is also designed as a toothed belt pulley and is arranged on the axle journal 26 of the turning drum 10.
  • the toothed belt 24 can be tensioned by means of a tension roller 27, which is adjustably fastened to the machine side frame 12 via a bearing block 28.
  • a disc 29 is fastened by means of screws 30 (Fig. 2-6).
  • the coupling wheel 25 is rotatably and axially displaceable relative to the disc 29.
  • switching cams 31 are provided, which are fastened with their pins 32 in the disk 29.
  • the Bevels 33 are advantageously designed such that the coupling wheel 25 bears against the disk 29 in the operating position (FIG. 5).
  • Pressure springs 34 which are supported on a cover plate 35, which is also fastened to the disk 29 by screws 36, are used for secure contact. The compression springs 34 press the coupling wheel 25 against the disk 29.
  • the switching cams 31 slide out of the recesses of the coupling wheel 25 via the bevels 33, so that the same is displaced axially against the force of the compression springs 34 (FIG. 6) .
  • a roller 37 On the coupling wheel 25 is a roller 37 which is attached to a shift lever 38.
  • the shift lever 38 in turn is pivotally attached to the machine side frame 12 via a bearing 39 and is under the force of a compression spring 40 which ensures that the roller 37 is securely seated on the coupling wheel 25.
  • the opposite end of the switching lever 38 actuates a switch 42 via an adjusting screw 41, which in this switching position prevents start-up when the machine is at a standstill and switches it off when the machine is running. This ensures that in the event of an unwanted mutual rotation of the two drum bodies 6, 10, damage to the forceps gripper 9 or the suction rails 7, 8 is prevented.
  • FIGS. 3 and 4 differ from the previously described embodiment in that they have different drive means between the coupling wheels 18 and 25.
  • the end opposite the spur gear 20 is. the shaft 21 a spur gear 43 is jammed, which cooperates with one or more intermediate gears 44 with a coupling gear 45 which is also designed as a spur gear.
  • the intermediate gear 44 is mounted here on the machine side frame 12 via a journal 46.
  • the number of intermediate wheels 44 depends on the structural distance to be bridged, the direction of rotation of the coupling wheel 45 coinciding with that of the turning drum 10.
  • the coupling wheel 45 is axially displaceably mounted and triggers a switching pulse via the switching cam 31.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP87104740A 1986-04-30 1987-03-31 Dispositif de sécurité pour une rotative d'impression Expired - Lifetime EP0243700B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3614734 1986-04-30
DE19863614734 DE3614734A1 (de) 1986-04-30 1986-04-30 Vorrichtung zum absichern einer rotationsdruckmaschine

Publications (3)

Publication Number Publication Date
EP0243700A2 true EP0243700A2 (fr) 1987-11-04
EP0243700A3 EP0243700A3 (en) 1989-05-24
EP0243700B1 EP0243700B1 (fr) 1991-08-28

Family

ID=6299929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104740A Expired - Lifetime EP0243700B1 (fr) 1986-04-30 1987-03-31 Dispositif de sécurité pour une rotative d'impression

Country Status (6)

Country Link
US (1) US4735141A (fr)
EP (1) EP0243700B1 (fr)
JP (1) JPH066371B2 (fr)
CN (1) CN1003576B (fr)
CA (1) CA1281591C (fr)
DE (2) DE3614734A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2233280A (en) * 1989-06-24 1991-01-09 Heidelberger Druckmasch Ag Printing press sheet guiding element adjustment device
EP0655329A1 (fr) * 1993-11-08 1995-05-31 Komori Corporation Dispositif de commutation d'impression pour une rotative pour feuilles avec mécanisme de retournement
EP0694387A1 (fr) 1994-07-29 1996-01-31 MAN Roland Druckmaschinen AG Procédé et dispositif pour contrÔler l'état d'une machine transformable à imprimer des feuilles

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3820026A1 (de) * 1988-06-13 1989-12-14 Heidelberger Druckmasch Ag Vorrichtung zur kraftschluessigen kupplung eines festzahnrades und eines verstellzahnrades an einem zylinder einer wendeeinrichtung in einer bogenrotationsdruckmaschine und elektrische absicherung einer solchen vorrichtung
JP3708385B2 (ja) * 1999-11-04 2005-10-19 リョービ株式会社 印刷機の位相ずれ検知装置
US7334790B2 (en) 2004-10-29 2008-02-26 Heidelberger Druckmaschinen Ag Apparatus for conveying sheets through a rotary press
DE102010001685A1 (de) * 2010-02-09 2011-08-11 manroland AG, 63075 Wendeeinrichtung einer Bogendruckmaschine
DE102013015617A1 (de) * 2013-09-19 2015-03-19 Heidelberger Druckmaschinen Ag Druckmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2294845A1 (fr) * 1974-12-20 1976-07-16 Heidelberger Druckmasch Ag Dispositif de commutation de tambour de reserve pour le transfert de feuilles
DE2620392B1 (de) * 1976-05-08 1977-09-01 Heidelberger Druckmasch Ag Einrichtung zum absichern einer druckmaschine fuer schoen- und widerdruck
DE3315445A1 (de) * 1983-04-28 1984-10-31 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Absicherung der umstellung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1916564A (en) * 1931-11-02 1933-07-04 Elliott Addressing Machine Co Addressing and printing machine
AT252858B (de) * 1962-08-17 1967-03-10 Andre Francois Conchon Rotations-Schablonendruckmaschine
DE1279031B (de) * 1963-01-14 1968-10-03 Albert Schnellpressen Kupplung fuer den Formzylinder von Rotationsdruckmaschinen
DE2632243C3 (de) * 1976-07-17 1979-08-30 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Auf variable Bogenlängen einstellbare Umführtrommel für Druckmaschinen
JPS55146762A (en) * 1979-05-02 1980-11-15 Shinohara Tekkosho:Kk Sheet reversal adjuster for sheet-fed rotary press
DD203869A1 (de) * 1981-11-06 1983-11-09 Hans Johne Schutzvorrichtung an gegenlaeufigen zylindern von druckmaschinen
DD226518B5 (de) * 1984-09-05 1993-08-26 Kba Planeta Ag Einrichtung zur betaetigung eines endschalters
DE3441963A1 (de) * 1984-11-16 1986-05-28 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Sicherheitseinrichtung an bogenrotationsdruckmaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2294845A1 (fr) * 1974-12-20 1976-07-16 Heidelberger Druckmasch Ag Dispositif de commutation de tambour de reserve pour le transfert de feuilles
DE2620392B1 (de) * 1976-05-08 1977-09-01 Heidelberger Druckmasch Ag Einrichtung zum absichern einer druckmaschine fuer schoen- und widerdruck
DE3315445A1 (de) * 1983-04-28 1984-10-31 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Absicherung der umstellung

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2233280A (en) * 1989-06-24 1991-01-09 Heidelberger Druckmasch Ag Printing press sheet guiding element adjustment device
GB2233280B (en) * 1989-06-24 1993-11-24 Heidelberger Druckmasch Ag Printing press sheet guiding element adjustment device
EP0655329A1 (fr) * 1993-11-08 1995-05-31 Komori Corporation Dispositif de commutation d'impression pour une rotative pour feuilles avec mécanisme de retournement
US5584241A (en) * 1993-11-08 1996-12-17 Komori Corporation Printing switching apparatus for sheet-fed rotary press with reversing mechanism
EP0694387A1 (fr) 1994-07-29 1996-01-31 MAN Roland Druckmaschinen AG Procédé et dispositif pour contrÔler l'état d'une machine transformable à imprimer des feuilles
DE4426992A1 (de) * 1994-07-29 1996-02-08 Roland Man Druckmasch Verfahren und Vorrichtung zur Zustandsüberwachung einer umstellbaren Bogendruckmaschine
DE4426992C2 (de) * 1994-07-29 1998-01-22 Roland Man Druckmasch Verfahren und Vorrichtung zur Zustandsüberwachung einer umstellbaren Bogendruckmaschine

Also Published As

Publication number Publication date
JPH066371B2 (ja) 1994-01-26
CN1003576B (zh) 1989-03-15
DE3614734C2 (fr) 1989-10-12
CN87102813A (zh) 1987-11-11
CA1281591C (fr) 1991-03-19
DE3614734A1 (de) 1987-11-05
JPS62263051A (ja) 1987-11-16
US4735141A (en) 1988-04-05
DE3772432D1 (de) 1991-10-02
EP0243700A3 (en) 1989-05-24
EP0243700B1 (fr) 1991-08-28

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