EP0544088A1 - Système pour enfiler des bandes de papier dans les rotatives à imprimer - Google Patents

Système pour enfiler des bandes de papier dans les rotatives à imprimer Download PDF

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Publication number
EP0544088A1
EP0544088A1 EP92117502A EP92117502A EP0544088A1 EP 0544088 A1 EP0544088 A1 EP 0544088A1 EP 92117502 A EP92117502 A EP 92117502A EP 92117502 A EP92117502 A EP 92117502A EP 0544088 A1 EP0544088 A1 EP 0544088A1
Authority
EP
European Patent Office
Prior art keywords
guide piece
drive
stations
paper web
drive stations
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
EP92117502A
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German (de)
English (en)
Other versions
EP0544088B1 (fr
Inventor
André Reponty
Jean Claude Marmin
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 EP0544088A1 publication Critical patent/EP0544088A1/fr
Application granted granted Critical
Publication of EP0544088B1 publication Critical patent/EP0544088B1/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
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B41F13/03—Threading webs into printing machines

Definitions

  • Rotary printing machines print continuous paper webs running from a paper roll, regardless of the printing process used.
  • the paper web Before starting up the printing machine, the paper web must be placed between or around different rolls. In the past, this was usually done by hand. For insertion, the beginning of the paper web was passed from one to the other by several workers moving along the printing press after the beginning of the paper web had been cut to a point to facilitate the insertion of the paper web between pairs of rollers.
  • the rollers or cylinders involved in the printing process are arranged in pairs with parallel axes of rotation on both sides of the paper web. The manual insertion of the paper web is thus lengthy and complex, since you have to climb inside the machine to insert the paper web between the rolls of the paper path. To avoid injuries, the individual pairs of rollers to be fitted must be provided with finger protection devices.
  • insertion tapes have long been known as an improved system for insertion.
  • idler rollers are attached to the end of some rolls, on which an endless conveyor belt runs along the most frequently used paper path. From the end of the transport route, the belt must be returned to its starting point via a series of so-called return rollers.
  • tensioning devices must be provided to maintain a corresponding tension on the conveyor belt, as well as a corresponding drive for the entire device.
  • To insert the paper web it is cut at an angle so that it tapers on its side facing the insertion belt. This tip is attached to the infeed belt and the printing press and the drive of the conveyor belts are switched on, so that the paper web is taken from the conveyor belts from roll to roll.
  • a chain or cable unwinding winch is arranged in the vicinity of the paper roll storage and a corresponding winding winch is arranged in the vicinity of the folder.
  • the bar is separated from the chain or cable entrainment system and the chain or cable is rewound onto the outfeed winch.
  • the main disadvantage is that paper can only be introduced along a single paper path with this method.
  • roller chain that is only a few meters long is guided in a channel formed on the frame of the printing press.
  • the channel has a C-shaped cross section so that the chain is enclosed in the channel.
  • a hook for fastening the pointed blank of the paper web to be inserted protrudes through an opening in the channel.
  • the roller chain is arranged in the channel so that its rollers and thus their axes of rotation are parallel to the roller and cylinder axes of the printing press.
  • there are electric or pneumatic motors at predetermined locations which drive sprocket wheels, the axes of which are also parallel to the roller axes of the printing press.
  • the "snake”, the guide piece, is shown in Fig.1. It is a plastic profile made of elastic plastic, in particular with a square cross-section from 7 mm to 7 mm, the front section (2) of which is tapered in the manner of a pointer, so that the guide piece does not get caught in interruptions in the guide channel in its forward movement .
  • the rear section (3) of the guide piece is slit over a length of several centimeters.
  • a metal foil (4) e.g. made of spring steel
  • the metal foil (4) is provided with an opening (6) which serves to fasten the tip formed on the paper web to be inserted.
  • the guide piece (1) advantageously consists of flexible material.
  • Fig. 2 shows the guide channel.
  • This is formed from a metal profile (20) with a square cross section of 8 x 8 mm, the metal e.g. Is injection molded aluminum.
  • the metal profile (20) is open in a C-shape on one of its sides. Spacers (21) glued to the metal profile (20) are fastened to the printing machine frame (23) with the aid of screws (22) and thus hold the metal profile at a constant distance from the frame (23).
  • Fig. 3 shows a drive station in elevation
  • Fig. 4 shows the same station in plan view. The following description refers to FIGS. 3 and 4.
  • the main body of the drive station is formed by a plastic plate (30) which has a relatively complicated shape. At its rear end, the plate (30) is provided with a guide groove (31) which extends over the entire length of the plate (30). A metal tongue (32) is slid into this guide groove with slight friction. The tongue (32) is provided at one of its ends with an angle piece (33) which has a through hole.
  • a pneumatic cylinder (34) is attached to the plastic plate (30) with the aid of angles (35, 36).
  • the rod (37) of the pneumatic cylinder (34) is provided with a screw (38) which extends through the hole in the angle piece (33) and thus connects the rod (37) to the tongue (32).
  • a rectangular recess (39) receives a carriage (40) fastened to the tongue (32) by means of two screws.
  • Two pressure rollers (42, 42 ') are arranged on this slide (40), each of which has an eccentric pivot pin (43, 43') which is mounted in bores in the slide (40).
  • the pivots (43, 43 ') of the pressure rollers (42, 42') each have a hole (44, 44 '), a section of a piano string (45) connecting these two holes (44, 44') being sought
  • Pressure rollers (42, 42 ') can be traced back to a constant intermediate position.
  • the constant position of the two pressure rollers (42, 42 ') is the one in which their cylindrical areas face each other and are as close as possible to each other.
  • the cylindrical areas of the pressure rollers delimit an intermediate space which is smaller than the width of the guide piece. If the guide piece is inserted between the pressure rollers, it presses them apart using its pyramid-shaped front area (2). The guide piece (1) is then clamped in one direction: it can continue to move in the direction in which it was inserted, but is blocked in the opposite direction. This applies regardless of the direction of insertion of the guide piece, whether this is the direction shown in FIG. 3 or its opposite direction.
  • the drive station comprises two further pressure rollers (46, 46 ') which are identical to the rollers (42, 42'), are also mounted on eccentric axes (47, 47 ') and are in a central position by means of a piano string (48) be withdrawn.
  • These pressure rollers (46, 46 ') are mounted directly on the frame (30) of the drive station.
  • the stroke of the slide (40) which occurs under the action of the pneumatic cylinder (34) is limited and regulated by a stop screw (49) secured by a lock nut (50).
  • the drive station is also equipped with an electrical switch (51) which closes a normally open contact as soon as its swivel roller (52) comes into contact with the guide piece (1).
  • the switch (51) is connected via a terminal block (53) to the main electrical circuit of the system, which will be described below.
  • An electro valve (54) of type 5/2 is also attached to the frame (30) at the rear end of the drive station.
  • Fig. 5 shows the pneumatic scheme of the system.
  • the system can include any number of drive stations.
  • Each drive station (e.g. 101) includes an electro valve 5/2 (54 ') in the pneumatic area with electrical control and spring force return device.
  • the solenoid valve (54 ') is connected to the pneumatic cylinder (34') of the drive station via two lines. All solenoid valves are supplied in parallel with compressed air at a pressure of 7 bar by the supply unit of the printing press. It is possible to regulate this outlet pressure to a pressure of less than 7 bar with the help of a single pressure reducer in order to limit the driving force of the system and thus prevent the paper from tearing. Does electricity flow e.g. through the solenoid valve (54 '), the rod of the cylinder (34') moves from right to left. If the air supply is cut off, it executes the opposite movement.
  • Fig. 6 shows an electrical diagram of the system. Three drive stations are shown in this diagram, although any number of drive stations can of course be used in an actual system.
  • the drive stations are provided with the reference numerals (100, 101 and 102). Each Each station comprises an electrical switch (51) connected in series with an electrovalve (54).
  • the individual drive stations (100, 101 and 102) are connected in parallel with each other and are supplied with 24 V DC from a power supply. This circuit is interrupted by a switch (103) which is actuated by a toothed actuating cam attached to one of the cylinders of the printing press in a manner fixed against relative rotation.
  • the operation of the system is described in the following:
  • the toothed actuating cam (104) driven by the printing press is designed in such a way that it moves after e.g. 40 mm paper path gives an impulse to the switch (103). If one of the switches (51) is just closed because the guide piece is in the area of its contact roller, the corresponding electrovalve (54) is activated in the rhythm of the paper feed, i.e. always after 40 mm paper, switched off and switched on.
  • the contact (51 ') is the only one closed.
  • the solenoid valve (54 ') is also the only one switched and sends air alternately to the one and the other side of the piston of the cylinder (34') after 40 mm of paper feed.
  • the forward and backward movement of the piston effects a forward and backward movement of the slide (40).
  • the stop screw (49) it is possible to adjust the travel of the slide to about 40 mm or slightly more or less than 40 mm.
  • the pressure rollers (46, 46 ') have the function of pawls and prevent the guide piece from sliding back.
  • the C-shaped guide tube (20), in which the guide piece moves is interrupted vertically to a drive station and the ends of these tubes are inserted into recesses milled at both ends of the drive unit.
  • the guiding of the guide piece as it traverses the drive station is carried out by a channel embedded in the station.
  • Two sheet metal plates (55, 56) partially cover this channel and thus prevent the guide piece from jumping out on the front of the device. These plates are firmly attached to the frame (30) of the station by means of screws (57, 58).
  • the guide piece (1) moves discontinuously through successive 40 mm jumps.
  • the guide piece (1) has a length which is slightly greater than the greatest distance between two drive stations, so that the guide piece is always driven by at least one drive station, sometimes also simultaneously by two drive stations, the movement of the slides of the individual active ones Drive units of course run synchronously.
  • the contact (103) is closed, therefore, all the slides (40) of active drive stations simultaneously move 40 mm from left to right, and with them the guide piece. If the contact (103) is open, the slides move from right to left to their starting position, while the guide piece remains stationary. The movement of the guide piece (1) thus takes place discontinuously by successive 40 mm jumps.
  • FIG. 6a An embodiment variant of the electrical diagram of FIG. 6 is represented by the electrical diagram of FIG. 6a.
  • the drive stations with an even number (100, 102) are supplied with current in parallel by a cable, and the drive units with an odd number (101) are supplied by another cable.
  • the contact (103) is designed as a changeover switch, ie if the even-numbered drive stations are switched on, the odd-numbered stations are switched off and vice versa.
  • the electrical circuit shown in FIG. 6 a thus allows the guide piece (1) to move continuously forwards. In this case, it is particularly recommended that the length of the guide piece (1) corresponds to at least twice the maximum distance between two drive stations. Thus, the guide piece (1) stays in at least two drive stations and at most three drive stations at the same time.
  • the contact (103) closes e.g. the power supply of the even-numbered drive stations, the corresponding slides (40) move to the right together with the guide piece, while the slides (40) of the stations connected to the interrupted circuit move to the left into their starting position.
  • the contact (103) then switches over and supplies the odd-numbered stations, while the even-numbered stations remain inactive. This alternating movement of the carriages of the even-numbered and odd-numbered drive stations thus allows the guide piece (1) and the paper web to be introduced to move continuously to the right.
  • Fig. 7 shows an inactive switch, with the aid of which it is possible to guide the guide piece to its starting point without external influence to return.
  • the system includes a drive station (150) which is located at the end of a paper web insertion path.
  • the guide piece arrives at the station (150) in the direction of the arrow (f) and is pushed by this station to the inactive switch (151). From there, due to its tapering shape, it will get through one or the other channel to the drive station (152), which is activated by its switch and continues to drive the guide piece until it tips in through the other channel the opposite direction of the arrow (f) arrives at the station (150), in order to then run through the insertion path in the opposite direction again. It is irrelevant whether the guide piece passes through one or the other of the two channels when entering the reversing loop, since it arrives at station (150) both times through the opposite channel.
  • the path of the guide piece can be modified by active switches or reversing stations of known type.
  • This system allows the use of all possible active switches of known types, e.g. a switch in which the change from one track to another is carried out with the aid of a displaceable block made of plastic provided with groove-like depressions.
  • FIG. 8 Such an active switch is shown in FIG. 8.
  • This switch allows a path to be selected by moving a plastic block (200) in time with the aid of a pneumatic cylinder (201).
  • the plastic block (200) slides in a solid frame (202), also made of plastic, which has impact ends (203, 204) for the block (200), so that it can only assume two different positions, depending on whether the cylinder is pressing or pulls.
  • the channels (205 and 206) are connected via the groove (208) formed in the block (200). If the cylinder pushes the block up, so the channels (205 and 207) are connected via the groove (209) formed in the block (200).
  • the reference numerals (210, 211 and 212) denote drive stations. In this way, a large number of switches can be provided on the path of the guide piece.
  • the paper web which is cut asymmetrically to a point, can only be pulled on one side of the machine frame: accordingly, the feed system for the paper web only exists on one machine side, the paper web being attached to the metal foil (4) at the rear end of the guide piece with the aid of an adhesive tape. trained opening (6) is attached (see. Fig. 1).
  • An advantageous solution consists in providing an introduction system for a paper web on the functional side of the machine frame and another identical system on the operating side of the machine frame, the two systems being opposite one another (cf. FIG. 9).
  • Each system is thus equipped with its "snake", these two guide pieces being connected to each other with a cord with which the paper web cut to the point in the middle is pulled.
  • (250) denotes the operating side and (251) the functional side of the machine frame.
  • (252, 253, 254, 255) are drive stations
  • (256 and 257) are the respective guide channels on the operator and function side.
  • (258 and 259) are eyelets at the rear end of the two guide pieces, while (260) is a textile thread connecting the two eyelets.
  • (261) denotes the paper web to be inserted, which is cut in the middle to form an insertion tip (262). This tip is folded back over the thread and fastened to the paper web with the aid of an adhesive tape (263).
  • the advantage of this system is that the paper web is drawn symmetrically in the middle.
  • the first system consists in maintaining the synchronization by regulating the screws (49) of the individual drive stations (FIGS. 3 and 4).
  • the second system consists of electrically coupling the operator side and functional side drive stations so that the guide piece that arrives first at one station "waits" for the guide piece on the other side.
  • FIG. 10 shows an electrical diagram which allows this task to be solved. In this case, this scheme replaces that of FIG. 6 or FIG. 6a.
  • the voltage of 24 V is still chopped by the system consisting of the cam (104) and the switch (103) connected to the cylinder of the printing press. This chopped voltage feeds the coils of the solenoid valves (301, 302) on the operator side or the function side.
  • Switches (303, 304) arranged in this circuit are controlled by the relays (305, 306), which feed themselves via their contacts (307, 308).
  • the contact sensors, which sense the presence of the guide piece on the operating side, are equipped with two switches (309, 310).
  • the contact sensors, which sense the presence of the guide piece on the functional side, are also provided with switches (311, 312).
  • the switches (303, 304) only close after a stop if the switches of the two drive stations on the operating and functional side simultaneously detect a guide piece.
  • the drive station on one side only comes to a stop when the guide piece on this side has left its drive station.
EP92117502A 1991-11-26 1992-10-14 Système pour enfiler des bandes de papier dans les rotatives à imprimer Expired - Lifetime EP0544088B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9114581 1991-11-26
FR9114581A FR2684042B1 (fr) 1991-11-26 1991-11-26 Dispositif d'engagement de bande pour presse a imprimer a bobine.

Publications (2)

Publication Number Publication Date
EP0544088A1 true EP0544088A1 (fr) 1993-06-02
EP0544088B1 EP0544088B1 (fr) 1996-03-20

Family

ID=9419341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92117502A Expired - Lifetime EP0544088B1 (fr) 1991-11-26 1992-10-14 Système pour enfiler des bandes de papier dans les rotatives à imprimer

Country Status (5)

Country Link
US (1) US5320039A (fr)
EP (1) EP0544088B1 (fr)
JP (1) JPH05220925A (fr)
DE (1) DE59205757D1 (fr)
FR (1) FR2684042B1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997045267A1 (fr) * 1996-05-29 1997-12-04 Heidelberger Druckmaschinen Aktiengesellschaft Systeme de transport de feuille pour une presse rotative
EP0820862A2 (fr) * 1996-07-25 1998-01-28 EMO Elektromotorenwerk Kamenz GmbH Dispositif de transport et d'enfilage de bandes comprenant un entraínement électrique
US6092801A (en) * 1996-05-29 2000-07-25 Heidelberger Druckmaschinen Ag Mailroom conveyor system with an electric linear device
WO2002090115A1 (fr) * 2001-05-05 2002-11-14 Koenig & Bauer Aktiengesellschaft Aiguillage d'un dispositif de transport
WO2007033848A1 (fr) * 2005-09-21 2007-03-29 Koenig & Bauer Aktiengesellschaft Dispositifs et procede d'insertion d'au moins une bande de materiau ou d'au moins un tronçon de bande dans un appareil de pliage

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5947361A (en) * 1996-07-25 1999-09-07 Emo Elektromotorenwerk Kamenz Gmbh Apparatus for transporting fabrics and web-shaped material with an electric drive device
JP2849679B2 (ja) * 1996-09-25 1999-01-20 株式会社東京機械製作所 輪転機の紙通しガイドの分岐装置
EP1138482B1 (fr) * 2000-03-30 2003-11-12 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif d'engagement de la bande avec des stations de raccordement décentralisées
US6398094B1 (en) * 2000-05-08 2002-06-04 The Washington Post Web threading apparatus for a rotary printing press
US6948427B2 (en) 2002-07-05 2005-09-27 Goss International Americas, Inc. Web infeed device for rotary printing presses
JP4445317B2 (ja) * 2004-04-16 2010-04-07 西研グラフィックス株式会社 自動紙通し装置用牽引走行体
DE102004022541B4 (de) * 2004-05-05 2013-12-05 Manroland Web Systems Gmbh Vorrichtung zum Einziehen von Materialbahnen in Aggregate von Rotationsdruckmaschinen
FR2895305B1 (fr) * 2005-12-27 2009-04-17 Goss Int Montataire Sa Presse d'impression a engagement de bande ameliore et procede d'engagement de bande correspondant.
DE102007037564B4 (de) * 2007-08-09 2013-11-14 Robert Bosch Gmbh Verfahren zur Achskorrektur bei einer Verarbeitungsmaschine

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FR1147264A (fr) * 1956-04-05 1957-11-21 Dispositif de retenue unidirectionnel d'un lien souple
US2836870A (en) * 1954-05-13 1958-06-03 Philip B Shea Cam cleat
US2862705A (en) * 1956-08-13 1958-12-02 Time Inc Threading mechanism
FR1394809A (fr) * 1964-02-04 1965-04-09 Central De Gestion Et De Contr Treuil hydraulique à mâchoires auto-serreuses
US4218004A (en) * 1978-12-21 1980-08-19 American Can Company Incremental strip feeder
EP0192146A2 (fr) * 1985-02-16 1986-08-27 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Station d'entraînement pour un dispositif d'enfilage dans une rotative d'impression à rouleaux
EP0388866A2 (fr) * 1989-03-22 1990-09-26 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Station d'entraînement pour dispositif d'enfilage dans une rotative d'impression à rouleaux
EP0425741A1 (fr) * 1989-11-01 1991-05-08 Hamada Printing Press Co. Ltd. Dispositif d'alimentation de bande pour rotative

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US3045884A (en) * 1959-06-04 1962-07-24 Bell Telephone Labor Inc Tape drive control system
US3084881A (en) * 1960-09-16 1963-04-09 Honeywell Regulator Co Electrical apparatus
JPH024740Y2 (fr) * 1984-09-18 1990-02-05
CH677328A5 (fr) * 1988-10-26 1991-05-15 Bruderer Ag
CA2025552C (fr) * 1989-09-20 1993-12-21 Kunio Suzuki Dispositif d'engagement d'une bande de papier continu dans une rotative
DE4110668C1 (fr) * 1991-04-03 1992-05-27 Koenig & Bauer Ag, 8700 Wuerzburg, De

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2836870A (en) * 1954-05-13 1958-06-03 Philip B Shea Cam cleat
FR1147264A (fr) * 1956-04-05 1957-11-21 Dispositif de retenue unidirectionnel d'un lien souple
US2862705A (en) * 1956-08-13 1958-12-02 Time Inc Threading mechanism
FR1394809A (fr) * 1964-02-04 1965-04-09 Central De Gestion Et De Contr Treuil hydraulique à mâchoires auto-serreuses
US4218004A (en) * 1978-12-21 1980-08-19 American Can Company Incremental strip feeder
EP0192146A2 (fr) * 1985-02-16 1986-08-27 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Station d'entraînement pour un dispositif d'enfilage dans une rotative d'impression à rouleaux
EP0388866A2 (fr) * 1989-03-22 1990-09-26 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Station d'entraînement pour dispositif d'enfilage dans une rotative d'impression à rouleaux
EP0425741A1 (fr) * 1989-11-01 1991-05-08 Hamada Printing Press Co. Ltd. Dispositif d'alimentation de bande pour rotative

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997045267A1 (fr) * 1996-05-29 1997-12-04 Heidelberger Druckmaschinen Aktiengesellschaft Systeme de transport de feuille pour une presse rotative
US6092801A (en) * 1996-05-29 2000-07-25 Heidelberger Druckmaschinen Ag Mailroom conveyor system with an electric linear device
EP0820862A2 (fr) * 1996-07-25 1998-01-28 EMO Elektromotorenwerk Kamenz GmbH Dispositif de transport et d'enfilage de bandes comprenant un entraínement électrique
EP0820862A3 (fr) * 1996-07-25 1998-11-11 EMO Elektromotorenwerk Kamenz GmbH Dispositif de transport et d'enfilage de bandes comprenant un entraínement électrique
WO2002090115A1 (fr) * 2001-05-05 2002-11-14 Koenig & Bauer Aktiengesellschaft Aiguillage d'un dispositif de transport
US6923116B2 (en) 2001-05-05 2005-08-02 Koenig & Bauer Aktiengesellschaft Shunting track in a transport device
WO2007033848A1 (fr) * 2005-09-21 2007-03-29 Koenig & Bauer Aktiengesellschaft Dispositifs et procede d'insertion d'au moins une bande de materiau ou d'au moins un tronçon de bande dans un appareil de pliage
EP1930163A3 (fr) * 2005-09-21 2008-06-25 Koenig & Bauer Aktiengesellschaft Dispositif destiné à introduire au moins une bande de matière ou au moins une rame dans une plieuse
US7922642B2 (en) 2005-09-21 2011-04-12 Koenig & Bauer Aktiengesellschaft Devices and method for feeding at least one material web or web strand into a folding device

Also Published As

Publication number Publication date
EP0544088B1 (fr) 1996-03-20
FR2684042A1 (fr) 1993-05-28
JPH05220925A (ja) 1993-08-31
US5320039A (en) 1994-06-14
FR2684042B1 (fr) 1996-06-07
DE59205757D1 (de) 1996-04-25

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