EP2105395B1 - Dispositif destiné au transport de feuilles - Google Patents

Dispositif destiné au transport de feuilles Download PDF

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Publication number
EP2105395B1
EP2105395B1 EP09155321A EP09155321A EP2105395B1 EP 2105395 B1 EP2105395 B1 EP 2105395B1 EP 09155321 A EP09155321 A EP 09155321A EP 09155321 A EP09155321 A EP 09155321A EP 2105395 B1 EP2105395 B1 EP 2105395B1
Authority
EP
European Patent Office
Prior art keywords
sheet
transport
suckers
sheets
conveying direction
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 - Fee Related
Application number
EP09155321A
Other languages
German (de)
English (en)
Other versions
EP2105395A1 (fr
Inventor
Arndt Jentzsch
Christian Ziegenbalg
Berthold Oehler
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP2105395A1 publication Critical patent/EP2105395A1/fr
Application granted granted Critical
Publication of EP2105395B1 publication Critical patent/EP2105395B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • B65H3/0825—Suction grippers separating from the top of pile and acting on the rear part of the articles relatively to the final separating direction
    • 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
    • B41F21/04—Grippers
    • B41F21/05—In-feed grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/48—Air blast acting on edges of, or under, articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/54—Pressing or holding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/10—Reciprocating or oscillating grippers, e.g. suction or gripper tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/06—Movable stops or gauges, e.g. rising and falling front stops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a device for feeding sheets of an applied to leading edge stops sheet stack to a printing cylinder with a respective uppermost sheet in the region of the sheet trailing edge and passing in a conveying direction transporting suckers, being provided between the leading edge stops and the printing cylinder sheet transport and this downstream Bogenbeuggungsstoff.
  • a first sheet transport means that z. B. as a constantly circulating transport roller and this associated swab rollers, detects the guided by the transport suckers sheet and promotes this to a second sheet transport means, the sheet is released from the Transportaugem. After the sheet has been released, the transport suckers move back to their initial position for taking over the subsequent sheet which has been picked up by the separating suckers in the meantime and arrange them underneath to the sheet guided by the first sheet transport means.
  • the second sheet transport means is usually designed as a belt table, preferably as a suction belt table.
  • the second sheet transport means leads the processing reaching bow in a graduated form on a feed table, where the respective foremost sheet of the sheet stack transported with the leading edge against feasible in the path of the sheet feed marks, brought to rest and so aligned with the leading edge. Subsequently, the resting bow is aligned to the side edge.
  • the aligned and at rest arc is detected by arc accelerating means, accelerated to printing cylinder speed and fed to the printing cylinder.
  • the sheets are accelerated to a fraction of the printing cylinder speed by a first sheet accelerating means, which is designed as a rotating or oscillating pregripper, and then transferred to a second sheet accelerating means, which realizes the printing cylinder speed and feeds the sheets to the printing cylinder.
  • a first sheet accelerating means which is designed as a rotating or oscillating pregripper
  • the sheet transport means provided between the leading edge stops of the sheet pile and the sheet accelerating means are complex and require a large installation space. Furthermore, it is disadvantageous that the defined in the trailing edge region of the Transportaugem arch held on sheet transport and transported by this means of friction on the feed table and with the leading edge against the feed marks. As a result, there is a risk that the position of the sheet to each other or their position is changed to the machine cycle, resulting in productivity losses. In addition, it is disadvantageous to perform the bow graduated on the feed table and the respective foremost sheet of sheet stagger with the leading edge against the feed marks, since there is a risk that the subtending sheet, so the arc detected by the sheet acceleration means, with its free end entrains the underlapping next bend, which leads to malfunction.
  • the second sheet transport means as generally customary in sheet-fed machines, is designed as a suction belt table, it is problematic and only possible with great effort to adapt the negative pressure to be transported to the sheet material being processed for processing. In addition, additional funds must be provided, which allow the first sheet of a sheet of grades safely taken over by Saugb Stisch and the last sheet of a sheet of grading is applied smoothly with the leading edge of the feed marks.
  • the transport suction detect alternately a single sheet and transport it in the conveying direction to the transfer to the sheet transport. After the sheet transfers, the transport suckers run counter to the conveying direction back to the sheet transfer position, the transport suckers follow by pivoting the guides a web that is above the track, which is described by the Transportaugem when transporting the sheet in the conveying direction.
  • a device for supplying the sheet of an applied to leading edge stops sheet stack to a printing cylinder in which above the sheet stack each supplied sheet in the area of the sheet leading edge detecting, the sheet from the sheet stack separating and transporting a feed table to Anlegmarken suction cups are provided.
  • the suckers is associated with a vibratory drive and arranged above the plane of the feed table a the sheet to be fed, the sheet accelerating and placed on the impression cylinder Vorgreifer.
  • This sheet feeding apparatus is only suitable for small-sized low-power machines and machines because the suckers separating the uppermost sheets from the sheet stack and transporting to the registration marks can not always detect the next sheet unless the free end of the sheet is the leading edge portion of the sheet Bow pile has left. Moreover, it is disadvantageous that the separated from the sheet stack and guided in the region of the leading edge by the suction in a defined position sheet for aligning against the leading brands and released, whereby the productivity of the sheet-processing machine is adversely affected.
  • the US 2006/181002 A1 discloses a device for feeding sheets of sheet applied to leading edge stops sheet pile to a printing cylinder with a respective top sheet in the region of the sheet trailing edge and passing in a conveying direction transporting suction, wherein between the leading edge stops and the printing cylinder sheet transport means are provided, said sheet transporting the sheet transport through the Transport suction are fed.
  • the object of the invention is to provide an apparatus for feeding sheets, which requires a small space, can be realized by simple means and does not adversely affect the productivity of the sheet-processing machine.
  • the solution according to the invention makes it possible to pre-allocate the sheet feeder directly to the sheet acceleration means and thus realize a cost-saving and compact design. Moreover, it is advantageous that the sheets separated in the sheet feeder are fed to the Bogenbeschreibungsmittein in a defined position, thereby avoiding excess sheet, a high sheet throughput allows and thus high labor productivity can be secured.
  • a sheet feeder 1 is shown with an existing sheet of sheet 2 pile 3.
  • the sheet pile 3 is constructed on a stacking plate 4, act on the traction means 5, which are connected to a drive which is associated with a frame 6 of the sheet feeder 1.
  • the sheets 2 of the sheet stack 3 lie with a sheet leading edge 2.1 at stop surfaces 7.1 of spaced over a maximum format width spaced from each other arranged leading edge stops 7 at.
  • a likewise extending over the format width sheet flap 8 is provided which can be mounted by means of a flap shaft 9 and pivoted by means not shown in or counterclockwise.
  • an upward and downward movement carrying separating suction 10 and a feeler 11 are provided in the machine cycle, which also performs an up and down movement, which is superimposed by a pivoting movement. Furthermore, directed to the bow trailing edges 2.2 horns 12 are provided.
  • the separating suckers 10 are arranged downstream of the first transport suction 13.
  • the first transport suction 13 are each arranged by means of a sliding block 15 on a first guide rail 16 and spaced distributed over the format width of reaching for processing sheet 2 is provided.
  • the first guide rails 16 extend parallel to the surface of the sheet stack 3 and extend in the conveying direction 18.
  • a first suction cup 19 connecting the first transport suction 13 engages a first push rod 21, which is connected to a first crank 23.
  • the first slider crank 23 is rotatably associated with a first drive shaft 25, which is driven in one-off in the power stroke.
  • the first drive shaft 25 z. B. connected via a toothed belt 29 with a first motor 27 ( Fig. 1 and 3 ).
  • the first guide rails 16 can pivotably pass through one in the region of the sheet trailing edges 2.2 Be included bearing shaft 31.
  • a first roller lever 34 which runs with a first cam roller 36 on a first cam 38 which is rotatably connected to the first drive shaft 25, whereby the first guide rails 16 is raised in the power stroke and can be lowered.
  • second transport suction 14 and the transport suction 13, 14 use alternately.
  • 16 second guide rails 17 are provided between the first guide rails, which are associated with the pivotable one end of the bearing shaft 31.
  • a second transport suction 14 is provided by means of a sliding block 15.
  • the second transport suckers 14 are connected by a second suction rod 20, on which a second push rod 22 engages, which is connected to a second push crank 24.
  • the second thrust crank 24 is non-rotatably associated with a second drive shaft 26 which is half-speed driven by a second motor 28 via a toothed belt 29. If second transport suckers 14 are provided, it is necessary to drive the first drive shaft 25 through the first motor 27 also at half-speed.
  • second transport suckers 14 When using second transport suckers 14, they must be guided above the conveyance plane 13 described by the transport suckers 13, 14 in the movement counter to the conveying direction 18.
  • a second coupling 33 engages, which is connected to a second roller lever 35.
  • a second cam roller 37 In the second roller lever 35, a second cam roller 37 is mounted, which runs on a second cam 39.
  • the second cam 39 is rotatably connected to the second drive shaft 26 which is connected via the toothed belt 29 with the second motor 28.
  • the sheet conveying plane 30 is associated with a sheet guiding device 40 in the front region, which consists of upper sheet guiding means 41 and lower sheet guiding means 42.
  • the sheet guide device 40 extends up to the leading edge stops 7 downstream arc acceleration means 43.
  • the arc acceleration means 43 are designed such that they accelerate the sheet 2, that is, increase its transport speed, and accelerated passed to a subsequent system.
  • the following system is designed as an application drum 45 in the embodiment.
  • As arc acceleration means 43, a vibrating pre-gripper 44 and a feed drum 45 are provided in the embodiment. Instead of Vorgreifers 44 but also a circumferential pregripper drum can be provided.
  • the pre-gripper 44 which has a sheet holding means, which consists in the embodiment of cooperating with an impact strip 46 grippers 47 is additionally equipped with Anlegmarken 48.
  • the pre-gripper 44 downstream feed drum 45 is provided with sheet holding systems, which are designed to realize a side edge alignment in the axial direction displaceable.
  • the feed drum 45 is a pressure cylinder 49 downstream.
  • the sheet 2 forming the sheet stack 3 are arranged on the stacking plate 4, wherein the sheet 2 abut with the sheet leading edge 2.1 to the stop surfaces 7.1 of the leading edge stops 7.
  • the traction means 5 By acting on the traction means 5 drive the top of the sheet stack 3 is kept constantly at a working level.
  • the topmost sheet 2 By positioned in the region of the sheet trailing edge 2.2 separating sucker 10, which are controlled against the surface of the sheet stack 3, the topmost sheet 2 is detected and separated by the movement of the separation sucker 10 in its initial position in the region of the sheet trailing edge 2.2 from the next sheet, the feeler 11th is pivoted from the profile of the sheet pile 3.
  • the sheet flap 8 forms a straight-line continuation of the leading edge stops 7, so that the sheet 2 of Following arc is completely separated.
  • the upper sheet guiding means 41 of the sheet guiding device 40 thereby secure the position of the free end of the sheet 2.
  • the first transport suckers 13 detect the sheet 2 held by the separating suckers 10, and are assigned directly to the separating suckers 10.
  • the sheet 2 is released from the separation suckers 10 and the sheet flap 8 is pivoted counterclockwise, wherein the sheet flap 8 forms an inlet funnel with the lower sheet guiding means 42 and the upper sheet guiding means 41.
  • first transport suction 13 on the first push rod 21 and the attacking on this and with the first drive shaft 25 rotatably connected first slider crank 23 in the conveying direction 18 is shifted.
  • the path realized by the first transport suckers 13 in the conveying direction 18 is so great that the sheet leading edge 2.1 of the sheet 2 held by the first transport suckers 13 is guided against the laying marks 48 of the pregripper 44 which is in a latching position.
  • the sheet 2 is taken over by the pre-gripper 44 by the grippers 47 are guided against the stop bar 46, and released from the first transport suckers 13.
  • the pre-gripper 44 is accelerated and fed the sheet 2 of the feed drum 45 for transfer to the impression cylinder 49.
  • the first guide rails 16 pivotally connected to the bearing shaft 31 can be replaced by that of the first cam disk 38 controlled and connected by means of the first coupling 32 with the first guide rails 16 first roller lever 34 are raised and lowered.
  • first and second transport suction 13, 14 it is to allow trouble-free transport of the sheet 2 or to avoid a collision of the transport suckers 13, 14, required, the movement of the transport suckers 13, 14 after the application of the sheet 2 with the sheet leading edge 2.1 to realize the Anlegmarken 48 on a path to the suction pads 10, the plane over the sheet conveying 30 runs.
  • the transport suckers 13, 14 in order to be able to realize such a stroke of the transport suckers 13, 14, it makes it possible for the sheet 2 located on the sheet stack 3 and separated by the separating suckers 10 to feed the sheet acceleration means 43 directly by means of the transport suckers 13, 14 without additional sheet transport means , the transport suckers 13, 14 associated with a first slider crank 50 and a second slider crank 51.
  • the slider crank gears 50, 51 consist of the sliding blocks 15, guide rails 16, 17, push rods 21, 22, rockers 23, 24 and drive shafts 25, 26.
  • the transport suckers 13, 14 can also by other mechanisms that generate a sufficient stroke to the in the area of the trailing edge 2.2 sheet 2 to be supplied directly from the sheet stack 3 to the sheet acceleration means 43, are driven. So z. B.
  • transport suckers 13, 14 also directly a translational motion generating drives such.
  • linear motors, hydraulic or pneumatic drives, are assigned, wherein the transport suction 13, 14 can also take over the additional function of separating the sheet 2 from the sheet stack 3.
  • the printing cylinder 49 In order to secure the processing of high sheet stacks in spite of the direct supply of sheets 2 held by the transport suckers 13, 14 in the region of the sheet trailing edge 2.2 to the sheet accelerating means 43, it is advantageous for the printing cylinder 49 to be a high-versal plant unit DE 4343614 B4 vorzuordnen with three vertically offset drums and a swinging system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Claims (9)

  1. Dispositif pour fournir des feuilles (2) d'une pile de feuilles (3) appliquée contre des butées d'arête avant (7) à un cylindre d'impression (9) prenant respectivement une feuille supérieure (2) au niveau de son arête arrière (2.2) et des ventouses de transport (13, 14) agissant dans la direction de transfert (18),
    * des moyens d'accélération de feuilles (43) étant prévus entre les butées
    d'arête avant (7) et le cylindre d'impression (49),
    dispositif caractérisé en ce que
    - les feuilles (2) des moyens d'accélération de feuilles (43) sont fournies par les ventouses de transfert (13, 14), et
    - les feuilles (2) sont transférées directement au cylindre d'impression (49) par les moyens d'accélération de feuilles (43).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    les moyens d'accélération de feuilles (43) sont constitués par une pince amont (44) ou un tambour de prise amont.
  3. Dispositif selon la revendication 2,
    caractérisé en ce que
    des repères de marge (48) sont prévus pour la pince amont (44) ou le tambour de préhension.
  4. Dispositif selon la revendication 1,
    caractérisé par
    un dispositif de guidage de feuilles (40) guidant l'arête avant (2.1) de la feuille (2) pendant son transport, au moins entre les butées d'arête avant (7) et les moyens d'accélération de feuilles (43).
  5. Dispositif selon la revendication 4,
    caractérisé en ce que
    le dispositif de guidage de feuilles (40) se compose de moyens supérieurs de guidage de feuilles (41) et de moyens inférieurs de guidage de feuilles (42).
  6. Dispositif selon la revendication 5,
    caractérisé en ce que
    les moyens supérieurs de guidage de feuilles (41) s'étendent dans la direction opposée à la direction de transfert (18) des feuilles (2) au-dessus des butées (7) de l'arête avant.
  7. Dispositif selon la revendication 5,
    caractérisé en ce que
    les moyens inférieurs de guidage de feuilles (42) coopèrent avec un volet à feuille (8) constituant le prolongement des surfaces de butées (7.1).
  8. Dispositif selon la revendication 1,
    caractérisé par
    des premières ventouses de transport (13) et des secondes ventouses de transport (14) auxquelles sont associés des moyens d'entraînement commandés indépendamment.
  9. Dispositif selon la revendication 8,
    caractérisé en ce que
    les ventouses de transport (13, 14) conduisent les feuilles (2) pour leur transport dans la direction de transfert (18) dans un plan de transfert de feuilles (30) et pour un mouvement opposé à la direction de transfert (18), ils décrivent une trajectoire située au-dessus du plan du convoyeur à feuilles (30).
EP09155321A 2008-03-18 2009-03-17 Dispositif destiné au transport de feuilles Expired - Fee Related EP2105395B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008014812A DE102008014812A1 (de) 2008-03-18 2008-03-18 Vorrichtung zum Zuführen von Bogen

Publications (2)

Publication Number Publication Date
EP2105395A1 EP2105395A1 (fr) 2009-09-30
EP2105395B1 true EP2105395B1 (fr) 2011-07-20

Family

ID=40672177

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09155321A Expired - Fee Related EP2105395B1 (fr) 2008-03-18 2009-03-17 Dispositif destiné au transport de feuilles

Country Status (3)

Country Link
US (1) US20090243193A1 (fr)
EP (1) EP2105395B1 (fr)
DE (1) DE102008014812A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPI20130012A1 (it) * 2013-03-01 2014-09-02 Francesco Finucci Apparato per la manipolazione di manufatti industriali

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE614107C (de) 1930-10-11 1935-06-01 Guy Motors Ltd Gleichstromverbundmaschine fuer elektrodynamische Bremsung von elektrisch angetriebenen Fahrzeugen
DE617107C (de) * 1931-07-09 1935-08-12 Faber & Schleicher Akt Ges Vorrichtung zum Zufuehren eines Bogens an den dauernd umlaufenden Druckzylinder einer Bogendruckmaschine
US2225006A (en) * 1939-06-29 1940-12-17 American Type Founders Inc Sheet feeding
US2245396A (en) * 1940-03-13 1941-06-10 Harris Seybold Potter Co Sheet feeding and registering mechanism
GB698347A (en) * 1950-12-19 1953-10-14 Frederick Charles Servante Improvements relating to sheet feeding mechanism for printing machines
DE1124518B (de) * 1960-12-20 1962-03-01 Mabeg Maschb G M B H Bogenanleger mit Vorblaesern und pneumatischen Trennmitteln
CS181553B1 (en) * 1976-03-12 1978-03-31 Jiri Volf Equipment for loading of sheets
DE3305219A1 (de) 1983-02-16 1984-08-16 Koenig & Bauer AG, 8700 Würzburg Bogenzufuehrung fuer druckmaschinen
DE3706058A1 (de) * 1987-02-25 1988-09-08 Heidelberger Druckmasch Ag Anleger fuer eine druckmaschine
DD271680A1 (de) * 1988-05-02 1989-09-13 Polygraph Leipzig Bogenfoerdereinrichtung in bogenanlegern
DD271681A1 (de) * 1988-05-02 1989-09-13 Polygraph Leipzig Einrichtung zum kontinuierlichen vorausrichten der bogenvorderkante in bogenanlegern
DE4214232C1 (de) * 1992-04-30 1993-11-04 Kba Planeta Ag Bogenanleger mit im bereich der stapelhinterkante angeordneten trennsaugern
DE4343614C2 (de) 1993-07-13 2003-02-13 Zf Sachs Ag Kolben für einen hydraulischen Teleskopschwingungsdämpfer
DE19511296C2 (de) 1995-03-28 1999-07-15 Gremser Masch Franz Vorrichtung zum Anheben und Abtransportieren flächiger Gegenstände
DE19644944A1 (de) 1996-10-29 1998-04-30 Kba Planeta Ag Einrichtung zum Zuführen von Bogen
US7334790B2 (en) * 2004-10-29 2008-02-26 Heidelberger Druckmaschinen Ag Apparatus for conveying sheets through a rotary press

Also Published As

Publication number Publication date
DE102008014812A1 (de) 2009-09-24
EP2105395A1 (fr) 2009-09-30
US20090243193A1 (en) 2009-10-01

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