EP2218667A2 - Alimenteur de feuilles destiné à l'alimentation d'un dispositif de transport de feuilles d'impression pliées et méthode pour le faire fonctionner - Google Patents

Alimenteur de feuilles destiné à l'alimentation d'un dispositif de transport de feuilles d'impression pliées et méthode pour le faire fonctionner Download PDF

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Publication number
EP2218667A2
EP2218667A2 EP10162547A EP10162547A EP2218667A2 EP 2218667 A2 EP2218667 A2 EP 2218667A2 EP 10162547 A EP10162547 A EP 10162547A EP 10162547 A EP10162547 A EP 10162547A EP 2218667 A2 EP2218667 A2 EP 2218667A2
Authority
EP
European Patent Office
Prior art keywords
sheet
stop
gripper
sheet feeder
speed
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.)
Ceased
Application number
EP10162547A
Other languages
German (de)
English (en)
Other versions
EP2218667A3 (fr
Inventor
Christoph Sägesser
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.)
Mueller Martini Holding AG
Original Assignee
Mueller Martini Holding 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 Mueller Martini Holding AG filed Critical Mueller Martini Holding AG
Publication of EP2218667A2 publication Critical patent/EP2218667A2/fr
Publication of EP2218667A3 publication Critical patent/EP2218667A3/fr
Ceased legal-status Critical Current

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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
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/30—Opening devices for folded sheets or signatures
    • B65H5/305—Opening devices for folded sheets or signatures comprising rotary means for opening the folded sheets
    • 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
    • B65H5/12—Revolving grippers, e.g. mounted on arms, frames or cylinders
    • 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
    • B65H9/14—Retarding or controlling the forward movement of articles as they approach 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/4471—Grippers, e.g. moved in paths enclosing an area
    • B65H2301/44714—Grippers, e.g. moved in paths enclosing an area carried by rotating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/4474—Pair of cooperating moving elements as rollers, belts forming nip into which material is transported

Definitions

  • the invention relates to a sheet feeder for loading a conveyor with folded signature, with a gripper drum having at least one gripper for removing a respective sheet from a stack, with a stop device which is arranged on the circumference of the gripper drum and which has a stop on which Each sheet can be aligned with the fold advancing, and with an opening device with which the respectively aligned to the stop device sheet open and can be stored under direction reversal on the transport device. It also relates to a method of operating such a sheet feeder.
  • Sheet feeders of this type are, for example, in saddle stitchers known for a long time. With such a sheet feeder, folded sheets are withdrawn individually from the pile with the gripper drum, opened and, for example, deposited on a collecting chain. At such sheet feeder the requirement is made that even with different formats and different paper trouble-free storage of the sheet is guaranteed.
  • DE-A-30 35 497 is a sheet feeder of the type mentioned become known in which the stop is designed to be movable. The stop takes over the sheets each synchronized motion and slow them down. This is to avoid that the striking at high speed on the stop compressed sheet are compressed.
  • the DE-A-197 38 920 discloses a sheet feeder in which upstream of the stop a strip is arranged which forms a wedge-shaped inlet opening for the printed sheets. By a friction engagement of the sheet with the tape to stabilize the sheet to be achieved when hitting the stop.
  • the invention has for its object to provide a sheet feeder of the type mentioned, which allows even higher performance and still ensures safe storage of the sheet.
  • the object is achieved in a generic sheet feeder in that upstream of the stop pressure means are arranged, which press the released from the gripper sheet each to a decelerating member having a transport speed, but the rectified is substantially smaller than that of the gripper drum, such that the Printing sheet upstream of the stop are each slowed down substantially to the transport speed of the delay element and impinge on the stop at this reduced speed.
  • the speed of the printed sheet prior to the stop is thus reduced stepwise by the transfer to a retarding member at a substantially lower speed.
  • the printed sheets can be slowed down, for example, to half the peripheral speed of the gripper drum. When hitting the sheet on the Stop this sheet then only half the speed and can be kept correspondingly safer under control.
  • thin printed sheets can be processed with high performance, without being significantly compressed at the stop. Thick and heavy printed sheets, which have a correspondingly high kinetic energy, can be better controlled.
  • the delay element has at least one endless belt.
  • This endless belt is thus arranged at least in the region of the stop device and driven at a speed which is substantially smaller than the transport speed of said gripper.
  • the delay element has at least one ring which is mounted on the circumference of the gripper drum.
  • the ring has an outer surface on which the printed sheets are pressed in each case before reaching the stop. A particularly safe and stable deceleration of the printed sheet is guaranteed if two such rings are provided, each having an outer surface.
  • the outer surfaces have a radius that is equal to or less than the radius on which the grippers transport printed sheets to the stop device.
  • the pressure means are arranged on the stop device. This allows a simple yet stable support of these pressure medium. At the same time, the pressure means stabilize the printed sheets in the area of the stop device.
  • the pressure means have at least one pressure roller, which bears against an outer side of the delay element.
  • This pressure roller presses the printed sheets in each case shortly before the stop on the outside of the retarder and thereby significantly reduces the transport speed of the sheet.
  • two spaced pressure rollers are provided. This allows a wide and secure support and stabilization of the sheets when they hit the stop.
  • the pressure means are arranged according to an embodiment of the invention on one arm of the stop device and pressed under tension on the delay element.
  • this voltage is adjustable. This allows a safe braking of the printed sheets to the lower transport speed.
  • the delay element is driven by the gripper drum.
  • This can be realized in a structurally particularly simple manner when the drive takes place with a friction wheel, which is moved along with the gripper drum at a distance from the axis of rotation.
  • the friction wheel is driven here, for example, via a toothed belt which is in engagement with a stationary toothed belt wheel.
  • the printed sheets are preferably gripped simultaneously by two grippers, which are each arranged directly next to said outer surfaces of the rings.
  • the distance between said outer surfaces is thus equal to or insignificantly smaller than the distance of the pairs arranged gripper.
  • a deceleration of the printed sheets to a particularly low transport speed is possible if, according to a development of the invention, the delay element has two or more than two elements which have different transport speeds.
  • the printed sheets can then be braked over two or more stages to a particularly low speed.
  • the impact speed of the sheet on the stop and thus the risk of damage to the sheet can be further reduced.
  • the sheet feeder is particularly suitable as a feeder for a gathering chain, but it can also be loaded with other transport devices such a sheet feeder.
  • the sheet feeder 1 has according FIG. 1 a housing 5, which has spaced-apart side plates 5a, of which in FIG. 1 only one is shown.
  • a so-called A-shaft 2 is mounted, which is driven by a drive device, not shown here about an axis of rotation 11 in the direction of the arrow 9 and thus in a clockwise direction.
  • the A-wave 2 are each of a sheet stack 8, which may also be arranged in the housing 5, a folded sheet 7 withdrawn and transported with a fold 7 a ahead in the direction of arrow 9 to a stop device 32.
  • the stop device 32 is adjusted to the format of a printing sheet 7 and forms with a stop element 10 a stop for the occasional folded printed sheet 7.
  • the voltage applied to the fold 7a on the stop element 10 printed sheet 7 are of a B-wave 3 and a C-wave 4th taken and opened in a conventional manner and stored on a transport device, eg. A collection chain 15.
  • a transport device eg. A collection chain 15.
  • the saddle-shaped lying printed sheet 7 are transported parallel to the axis of rotation 11 and added for further processing further device not shown here.
  • the B-shaft 3 and the C-shaft 4 may be formed in a known manner and will therefore not be explained further here.
  • These waves can also be replaced by another suitable device with which the printed sheets 7 can be opened and stored on a transport device.
  • the gripper drum 13 has according FIG. 2 two spaced-apart wheels 13 a and 13 b, which are fixedly connected to a shaft 19. This shaft 19 is mounted on the housing 5 and is driven by a toothed belt wheel 37. At each of the two wheels 13a and 13b are located at the same distance on the circumference of three grippers 6, each having a gripper arm 6a and a gripper pad 6b.
  • the grippers 6 are arranged in pairs, for example on the outside, ie they have a greater distance in the direction of the axis of rotation 11 than the two wheels 13a and 13b. It is also conceivable that the grippers 6 are arranged by at least one of the wheels 13a and 13b between the wheels 13a and 13b.
  • the gripper arms 6a are each attached to a control shaft 31 which is connected to arranged in a housing 33 control cams, and can be pivoted with this for gripping a respective printed sheet 7 in a known manner.
  • FIG. 4 shows above two open gripper 6, while the remaining grippers 6 are closed.
  • the closed state is according to FIG. 1 between each two gripper arms 6 and two gripper pads 6b a sheet 7 held in the region of the fold 7a.
  • the gripper drum 13 can also be designed so that it is designed only for the transport of a printed sheet 7 or for more than three sheets 7 per revolution.
  • the grippers 6 shown here are merely preferred embodiments for gripping means.
  • a ring 14 is mounted in each case, which is driven by a drive 34.
  • the two rings 14 are driven so that their peripheral speed is substantially smaller than that of the gripper drum 13.
  • the peripheral speed of the two rings 14 is, for example, half as high as the peripheral speed of the gripper drum 13.
  • the outer diameter of the rings 14, as in Fig. 3 shown selected so that it is equal to or smaller than the diameter on which the grippers 6 holding the printing sheet 7 rotate about the axis of rotation 11.
  • the drive 34 has a toothed belt wheel 18 which is mounted on the shaft 19 and which is connected to a holder 38 fixed to the housing 5.
  • the toothed belt wheel 18 is thus stationary with respect to the housing 5.
  • a further toothed belt wheel 21 is arranged, which is rotationally fixedly connected to a shaft 16 which is fixed in parallel and at a distance from the shaft 19 with a holder 17 on the gripper drum 13.
  • a toothed belt 20 is placed, which is tensioned with a belt tensioner 22. Rotates the gripper drum 13 on the A-shaft 19 about the axis 11, the shaft 16 moves similar to a planet in a circular orbit about the axis 11.
  • the shaft 16 By the engagement of the toothed belt 20, the shaft 16 is simultaneously rotated about its axis.
  • two friction wheels 24 are mounted on the shaft 16 at a distance from each other, which according to the FIG. 2 each pressed against an inner surface 25 of the rings 14.
  • the transmission ratios of the toothed belt wheels 18 and 21 and the diameter of the friction wheels 24 and the inner diameter of the inner surface 25 of the rings 14 can be influenced.
  • the gear ratios are selected so that the peripheral speed of the two wheels 14 is about 20 to 40% of the peripheral speed of the gripper drum 13.
  • the frictional transmission of the rotational movement of the wheels 24 on the rings 14 is by another transmission, for example.
  • toothing conceivable.
  • the rings 14 are driven separately, for example with a suitable motor.
  • the gripper drum 13 transports the printed sheet 7 withdrawn from the stack 8 in each case with preferably constant transport speed v 1 to the stop device 32. Shortly before each fold 7a (FIG. FIG. 1 ) of the printing sheet 7 impinges on the stop element 10, the corresponding two grippers 6 release the sheet 7. Substantially simultaneously with the opening of the corresponding gripper 6, the sheet 7, as in FIG FIG. 2 shown with two pressure rollers 12 to each one Outer surface 30 of the two rings 14 pressed. The printed sheet 7 is braked by appropriate friction on the outer surfaces 30 to the peripheral speed v 2 of the two rings 14 and thereby loses kinetic energy.
  • the pressing force of the two pressure rollers 12 can by a setting device 35 (FIG. FIG.
  • the contact pressure can be changed, for example, by means of a piston, which is acted upon by adjustable compressed air. Also conceivable is an embodiment in which the desired contact pressure is generated via a spring. By adjusting the contact pressure, the friction between the sheet 7 and the outer surfaces 30 and thus the negative acceleration of the sheet 7 can be adjusted.
  • the sheet 7 is then transported further with a corresponding reduced speed until the fold 7a rests against the stop element 10 and the printed sheet 7 is aligned accordingly.
  • the stop element 10 is preferably made of a damping material, which largely prevents a jumping back of the printed products.
  • the folds 7a parallel to the free edges of the sheet 7, are now detected by the A-wave 2 and the B-wave 3 and the sheet 7 is opened so that it according to FIG. 1 can be stored on the gathering chain 15.
  • the printed sheet 7 is thereby pulled out of the stop device 32 under direction reversal.
  • the sheet 7 Before the printing sheet 7 is caught and opened by the A-shaft 2 and the B-shaft 3, the sheet 7 remains aligned on the stop element and remains aligned by the frictional force on the two rings 14 and the stop element 10. When pulling out the sheet 7 from the stopper 32, this frictional force is overcome.
  • the two rings 14 form with the pressure rollers 12, a delay member 36, which transport the sheets 7 in the same direction as the gripper 6, but at a substantially reduced speed.
  • the FIG. 6 shows a sheet feeder 1 ', which is basically formed as the sheet feeder 1, but which differs by a delay member 36' according to a variant.
  • an endless belt 26 is provided, which is guided over deflection rollers 27 and driven by a drive roller 28. With a tension roller 29, the band 26 is stretched.
  • the band 26 is arcuately guided in the region of the deflection rollers 27 and extends upstream and downstream of the stop element 10.
  • the band 26 is preferably driven at a constant speed v 2 .
  • the speed v 2 corresponds to the speed of the delay member 36.
  • this speed v 2 is not mandatory, but can also be controlled variable.
  • the speed v 2 could be controlled so that it is reduced during the transport of the printing sheet 7 to the stop element 10, so that the speed of the printing sheet 7 is further reduced when hitting the stop element 10.
  • the in the FIG. 6 not shown gripper drum 13 transports a withdrawn from the stack 8 sheet 7 as described above.
  • the gripper 6 which has hitherto transported the printed sheet 7, is opened and thus the printed sheet 7 is transferred to the belt 26 for transport.
  • the lower transport speed of the belt 26 reduces the transport speed of the printing sheet 7. Even with the sheet feeder 1 'is a delay over several stages possible. Accordingly, then several bands 26 and pressure rollers 12 would be provided.
  • the detection of the printed sheet 7 with the B-wave 3 and the C-shaft 4 and the depositing on the gathering chain 15 and the transport device takes place as explained above.
  • pressure roller 12 may also be another suitable pressure element, for example. Also be provided an endless belt. Also possible is a design with two mutually spaced bands 26 and correspondingly two pressure rollers 12. The sheets 7 are then detected according to two bands 26 and two pressure rollers 12 and transported to the stop element 10.
  • FIG. 5 is a first angular position 01 , in which the gripper 6 engaging the signature 7 opens.
  • the corresponding printed sheet 7 is pressed against the rings 14 substantially simultaneously with the opening of the gripper 6 and thus the transport speed of the printing sheet 7 is delayed from the speed v 1 to the speed v 2 .
  • peripheral speed v 1 of the corresponding sheet 7 is delayed up to a second angular position ⁇ 2 to the peripheral speed or transport speed v 2 .
  • the printed sheet 7 now hits the stop element 10 with the fold 7a and is decelerated by it to the peripheral speed v 0 and thus to the zero speed.
  • the curve K3 shows a speed course of a sheet 7, which is transported with a delay member 36 or 36 ', in which the transport speed is controlled variably by a cam control or a motor.
  • the velocity of the retarding member 36 or 36 ' is reduced from the angular position ⁇ 1 to the angular position ⁇ 2 with the mentioned control or the motor. This makes it possible to further reduce the impact velocity of the printed sheets 7 on the stop element 10.
  • the corresponding impact velocity is still significantly smaller than the velocity v 2 . As already mentioned above, such a delay is also possible over several stages.
  • FIG. 7 shows the curve K1 the speed curve in a sheet feeder according to the prior art, in which the printed sheets 7 impinge on the stop member 10 at the angular position ⁇ 3 without delay.
  • the printed sheets 7 are thus abruptly decelerated at the speed v 1 of the gripper drum 13 on the stop element 10 to a standstill or up to the peripheral speed v 0 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Discharge By Other Means (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP10162547A 2007-05-01 2007-05-01 Alimenteur de feuilles destiné à l'alimentation d'un dispositif de transport de feuilles d'impression pliées et méthode pour le faire fonctionner Ceased EP2218667A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07405131A EP1988040B1 (fr) 2007-05-01 2007-05-01 Alimenteur de feuilles destiné à l'alimentation d'un dispositif de transport de feuilles d'impression pliées

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP07405131.9 Division 2007-05-01

Publications (2)

Publication Number Publication Date
EP2218667A2 true EP2218667A2 (fr) 2010-08-18
EP2218667A3 EP2218667A3 (fr) 2010-10-13

Family

ID=38474099

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10162547A Ceased EP2218667A3 (fr) 2007-05-01 2007-05-01 Alimenteur de feuilles destiné à l'alimentation d'un dispositif de transport de feuilles d'impression pliées et méthode pour le faire fonctionner
EP07405131A Not-in-force EP1988040B1 (fr) 2007-05-01 2007-05-01 Alimenteur de feuilles destiné à l'alimentation d'un dispositif de transport de feuilles d'impression pliées

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP07405131A Not-in-force EP1988040B1 (fr) 2007-05-01 2007-05-01 Alimenteur de feuilles destiné à l'alimentation d'un dispositif de transport de feuilles d'impression pliées

Country Status (6)

Country Link
US (1) US7891649B2 (fr)
EP (2) EP2218667A3 (fr)
JP (1) JP5102693B2 (fr)
CN (1) CN101298299B (fr)
AT (1) ATE473938T1 (fr)
DE (1) DE502007004391D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2218667A3 (fr) * 2007-05-01 2010-10-13 Müller Martini Holding AG Alimenteur de feuilles destiné à l'alimentation d'un dispositif de transport de feuilles d'impression pliées et méthode pour le faire fonctionner
JP5477348B2 (ja) * 2011-08-09 2014-04-23 コニカミノルタ株式会社 用紙処理装置及び画像形成システム
CN103738775A (zh) * 2013-12-17 2014-04-23 安徽华印机电股份有限公司 书帖下落减速机构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3035497A1 (de) 1979-10-17 1981-04-30 Grapha-Holding Ag, Hergiswil Bogenanleger
EP0716995A2 (fr) 1994-12-14 1996-06-19 Grapha-Holding Ag Dispositif pour l'alimentation de la section d'assemblage d'une assembleuse et brocheuse combinées
DE19738920A1 (de) 1997-09-05 1999-03-11 Brehmer Buchbindereimaschinen Vorrichtung zum Fördern von Falzbogen an die Registeranschläge von Falzbogenanlegern
EP1988040A1 (fr) * 2007-05-01 2008-11-05 Müller Martini Holding AG Alimenteur de feuilles destiné à l'alimentation d'un dispositif de transport de feuilles d'impression pliées

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH665411A5 (de) * 1985-02-07 1988-05-13 Grapha Holding Ag Zusammentragmaschine.
US5100116A (en) * 1988-12-19 1992-03-31 Quad/Tech, Inc. Apparatus and method of processing signatures
US5511769A (en) * 1994-10-31 1996-04-30 Am International, Inc. Sheet material collating apparatus
JP3786481B2 (ja) * 1996-10-15 2006-06-14 大日本印刷株式会社 給紙装置における作動タイミング初期設定方法
US5921546A (en) * 1997-06-02 1999-07-13 Heidelberg Finishing Systems Apparatus for decelerating sheet material while maintaining sheet registration
EP1024099B1 (fr) * 1999-01-26 2002-06-05 Grapha-Holding Ag Dispositif pour ouvrir et déposer une feuille pliée sur un dispositif de transport en mouvement
EP1700803B1 (fr) * 2005-03-10 2008-05-28 Müller Martini Holding AG Dispositif pour ouvrir et déposer une feuille pliée

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3035497A1 (de) 1979-10-17 1981-04-30 Grapha-Holding Ag, Hergiswil Bogenanleger
EP0716995A2 (fr) 1994-12-14 1996-06-19 Grapha-Holding Ag Dispositif pour l'alimentation de la section d'assemblage d'une assembleuse et brocheuse combinées
DE19738920A1 (de) 1997-09-05 1999-03-11 Brehmer Buchbindereimaschinen Vorrichtung zum Fördern von Falzbogen an die Registeranschläge von Falzbogenanlegern
EP1988040A1 (fr) * 2007-05-01 2008-11-05 Müller Martini Holding AG Alimenteur de feuilles destiné à l'alimentation d'un dispositif de transport de feuilles d'impression pliées

Also Published As

Publication number Publication date
EP2218667A3 (fr) 2010-10-13
EP1988040A1 (fr) 2008-11-05
CN101298299B (zh) 2014-07-30
JP2008273741A (ja) 2008-11-13
DE502007004391D1 (de) 2010-08-26
EP1988040B1 (fr) 2010-07-14
CN101298299A (zh) 2008-11-05
ATE473938T1 (de) 2010-07-15
US7891649B2 (en) 2011-02-22
US20080272537A1 (en) 2008-11-06
JP5102693B2 (ja) 2012-12-19

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