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EP0559846B1 - Dispositif pour le retournement d'une feuille avec changement simultane du sens de transport - Google Patents

Dispositif pour le retournement d'une feuille avec changement simultane du sens de transport Download PDF

Info

Publication number
EP0559846B1
EP0559846B1 EP92908174A EP92908174A EP0559846B1 EP 0559846 B1 EP0559846 B1 EP 0559846B1 EP 92908174 A EP92908174 A EP 92908174A EP 92908174 A EP92908174 A EP 92908174A EP 0559846 B1 EP0559846 B1 EP 0559846B1
Authority
EP
European Patent Office
Prior art keywords
gap
sheet
input
output
guide plate
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 - Lifetime
Application number
EP92908174A
Other languages
German (de)
English (en)
Other versions
EP0559846B2 (fr
EP0559846A1 (fr
Inventor
Johannes Jacobus Maria Kusters
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.)
Pitney Bowes Deutschland GmbH
Original Assignee
Bell and Howell GmbH
Bell and Howell Co
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6435463&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0559846(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bell and Howell GmbH, Bell and Howell Co filed Critical Bell and Howell GmbH
Publication of EP0559846A1 publication Critical patent/EP0559846A1/fr
Publication of EP0559846B1 publication Critical patent/EP0559846B1/fr
Application granted granted Critical
Publication of EP0559846B2 publication Critical patent/EP0559846B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • B65H5/021—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
    • B65H5/025—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts between belts and rotary means, e.g. rollers, drums, cylinders or balls, forming a transport nip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H15/00—Overturning articles
    • B65H15/004—Overturning articles employing rollers
    • 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
    • B65H5/26—Duplicate, alternate, selective, or coacting feeds
    • 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
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/34—Modifying, selecting, changing direction of displacement
    • B65H2301/342—Modifying, selecting, changing direction of displacement with change of plane of displacement
    • B65H2301/3423—Modifying, selecting, changing direction of displacement with change of plane of displacement by travelling an angled curved path section for overturning and changing feeding direction
    • 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
    • B65H2301/445—Moving, forwarding, guiding material stream of articles separated from each other
    • B65H2301/4454—Merging two or more streams

Definitions

  • the invention relates to a device for turning a sheet while changing the conveying direction with the features of the preamble of claim 1.
  • a device of this type is known from German Offenlegungsschrift 36 14 103. It contains an entry gap, a diagonally running bending gap and an exit gap, these gaps being formed between a roller arrangement on the one hand and a conveyor belt arrangement on the other, such that a formation of sheets clamped in a positive guide can be partially turned in a helical manner and can be discharged at an angle to the feed direction.
  • the object of the invention is to design a device with the features of the preamble of claim 1 so that an increased level of operational reliability is achieved at high working speed.
  • a multiple juxtaposition of devices of the type specified here not only makes it possible to turn a single sheet and discharge it with a changed conveying direction, but also to separate a plurality of sheets or form sections conveyed side by side in one plane simultaneously with the turning process and the change in the conveying direction in order to separate the Assign individual sheets or form sections to separate sheets or sets of forms after this separation.
  • the exit gap expediently contains, on the one hand, sections of rotating conveyor belts which are moved in the discharge direction and, on the other hand, counter-holding rolling elements assigned to them as the output drive means, the rolling elements preferably being formed by balls held in cages of the guide plate.
  • the device 10 for turning a sheet specified here, while simultaneously changing the conveying direction, is preceded by a feed device 11, in which a feed gap 12 is formed between pairs of opposing guide rods 13 and 14.
  • the guide rods 13 can be held together by transverse connecting rods 15, while the guide rods 14 are held together in a corresponding manner by transverse connecting rods 16.
  • a sheet to be processed by the device for turning and changing the conveying direction is inserted into the feed gap 12 in the direction of the arrow 17 and has the shape of a sheet separated from an endless form, for example by means of a cutting device.
  • Devices upstream of the feed device 11 convey a sheet to be handled into the input gap 12 until the front sheet edge over protrudes the feed gap 12 and enters an input gap 18 of the device for turning and changing the conveying direction.
  • a vacuum holding device 23 blocks further sheet movement, the lower drive rollers 22, which are not provided with a friction lining and driven by a motor 24, under the drive roller assembly pass through the sheet to be conveyed without overcoming the holding force of the vacuum holding device 23.
  • the vacuum holding device 23 is realized by channels 25 opening into vacuum holding openings of the guide rods 14, a control valve 26 and a vacuum source 27.
  • the respective sheet position in which the vacuum holding device 23 is switched on or ineffective can be determined by means of a position indicator 28 in the form of a photocell and a control device 29.
  • the guide walls 19 and 20 converge in the manner shown in FIG. 2 from the input side to the input gap 18, the upper guide wall 19 being fastened to a swivel bracket 30 which is swiveled up about a swivel axis 31 which is mounted in bearing blocks 32 can to the upper guide wall 19 together with the rollers 21 of the drive roller assembly, which are also mounted and held on the swivel bracket 30, from the lower guide wall 20 and the lift off lower arrangement of drive rollers 22 and to make the entrance gap 18 accessible. It should also be noted here that the rollers 21 of the drive roller arrangement are freely supported.
  • the upper guide wall 19 and the lower guide wall 20 extend in the conveying direction of the drive roller arrangement up to a diagonally running bending gap 33, the axis of curvature of which is essentially parallel to the plane of the entrance gap and thus to the plane of the sheet to be handled and is oriented at an angle of 45 degrees to the leading sheet edge, the bending gap 33 being limited on the one hand by a diagonal, curved deflection flange 34 of the upper guide wall and on the other hand by a diagonal, essentially cylindrical deflection body opposite this deflection flange.
  • the upper guide wall 19 designed as a comparatively rigid cover plate thus extends into a diagonal recess of the lower guide wall 20 oriented at 45 degrees to the conveying direction of the drive roller arrangement, the diagonal front edge of the lower guide wall 20 being closed off by the deflecting body 35.
  • the lower guide wall 20 forms the upper end of a guide plate 36, the middle layer 37 of which consists for example of polytetrafluoroethylene and is provided with cage recesses 38 in which rolling elements or balls 39 are accommodated.
  • a table 41 Over which the upper run of conveyor belts 42 and 43 is guided. These conveyor belts are placed over pairs of rollers 44 and 45 or 46 and 47 arranged and supported at the beginning and at the end of the table 41, the rollers 44 and 46 being set in rotation by a drive motor 48.
  • the upper sections or the upper debris of the conveyor belts 42 and 43 and, on the other hand, rows of rolling elements 39 each aligned with the conveyor belts act as conveying devices. This assignment is readily apparent to those skilled in the art from FIGS. 1 and 2.
  • rollers of the pair of rollers 50 which is not shown in FIG is dimensioned in such a way that it protrudes somewhat into the profile of the exit gap 49 and therefore imparts a slight transverse curvature to the sheet being removed, as a result of which the stability of the sheet being removed is increased in a desirable manner.
  • a sheet that has been severed from an endless form is removed from the severing device in the direction of arrow 17 in the feed device 11 entered and advanced so far that the leading edge of the sheet is finally gripped by the drive roller arrangement in the input gap 18 and is further advanced in the input gap 18.
  • the rear edge of the sheet overflows the sensor 28, which generates a signal and causes the control device 29 to put the vacuum holding device 23 into operation by opening the valve 26, so that the sheet now passes through the vacuum suction openings at the outer end of the channels 25 is held and the drive rollers 22 first run empty under the part of the sheet to be handled located in the entry gap 18.
  • the drive roller arrangement 21, 22 pushes the sheet to be handled further in the entry gap, so that the sheet corner on the left in FIG. 1 first reaches the bending gap 33 and is bent downward at 45 degrees until this sheet corner has reached the exit gap 49 and is gripped by the ball designated 39A in FIG. 1 on the one hand and the conveyor belt 42 on the other hand.
  • the conveying speed of the conveyor belts 42 and 43 in connection with the rolling elements 39 is preferably greater than the conveying speed of the drive roller arrangement 21, 22, with the result that the sheet to be handled, as soon as its corner lying with respect to FIG. 1 between the conveyor belt 2 and the Rolling element or the ball 39A is detected, is now drawn at an increased speed from the input gap 18 into the output gap 49 and changes from the initially prevailing nestling to the inside of the deflection flange 34 to abut against the outer surface of the deflection body 35 and precisely follows its diagonal bend, such that Due to the 45 degree orientation of the deflecting body 35, a conveying direction in the exit gap 49 sets 90 degrees to the feed direction in accordance with the arrow 17, as indicated by the arrow 51 in FIG. 1.
  • both the feed device 11 and the device 10 have a plurality of adjacent sections, the swivel bracket 30 and the swivel axis extending in one piece over these multiple sections and each with sets of drive rollers 21 corresponding to the arrangement shown in FIG. 1 is provided.
  • cover sections 19 assigned to the sections are fastened with deflection flanges 34, the deflection flanges 34 each extending into diagonal recesses of deflection bodies 35 of a guide plate 36 of greater length extending transversely over all sections.
  • On the underside of this guide plate there is a table 41 which extends correspondingly over all sections of the device and on the upper side of which in turn correspondingly elongated conveyor belts 42 and 43 are guided.
  • the object can be achieved of turning and separating a plurality of sheets conveyed next to one another in one plane and separated from one another in the longitudinal direction, and of conveying them in a direction perpendicular to the feed direction, as is shown schematically in FIG. 3 and in a perspective view.
  • the handled sheets follow one another in an overlapping manner in this new conveying direction, the sheet 52d lying on the right with reference to the illustration in FIG is transported at the top, while the sheet 52a drawn on the left in FIG. 3 is removed at the bottom.
  • the separation afterwards presents no difficulties.
  • FIG. 3a shows schematically a device with two sections
  • FIG. 3b shows a device with three sections
  • FIG. 3c shows one with four sections of adjacent units 10 of the type shown in FIG. 1.
  • FIG. 3d shows that feed devices 11 from one side Can supply chain of adjacent units 10 with alternating orientation of the diagonal deflection gap 33.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Registering Or Overturning Sheets (AREA)

Abstract

Des feuilles ou jeux de feuilles sont retournés à une vitesse de travail élevée et avec une grande sécurité de fonctionnement, en particulier après la coupe d'imprimés en continu, acheminés plus avant avec un changement du sens de transport, et séparés en amenant le bord de feuille orienté dans le sens du transport à une fente de pliage en diagonale par laquelle tout d'abord un coin de feuille atteint une fente de sortie, dans laquelle le bord guidant de la feuille est amené à une vitesse élevée, dans une direction perpendiculaire au dispositif de transport, dans un plan parallèle au plan du transport, tout en étant à une certaine distance de ce plan.

Claims (7)

  1. Dispositif pour le retournement d'une feuille avec changement simultané du sens de transport, la feuille étant transportée, par des moyens d'entraînement d'entrée (21, 22), vers une fente d'entrée (18) qui touche une fente de pliage (33) diagonale dont l'axe de courbure est orienté essentiellement parallèlement au plan de feuille et de préférence dans un angle de 45° par rapport au bord avant de la feuille et qui débouche dans une fente de sortie (49), dans laquelle sont prévus des moyens d'entraînement de sortie (42, 43, 39) destinés au moins à saisir le coin de feuille arrivant en premier dans la fente de sortie (49) lorsque la feuille est amenée à travers la fente d'entrée (18), la fente de sortie présentant un plan essentiellement parallèle, mais distancé par rapport à celui de la fente d'entrée (18), caractérisé en ce que la fente d'entrée (18), vers laquelle est transportée la feuille au moyen d'un dispositif de rouleaux d'entraînement (21, 22) constituant des moyens d'entraînement d'entrée, est formée entre une plaque de recouvrement (19) et une plaque de guidage (36), la plaque de recouvrement (19) comportant une bride de renvoi (34) à courbure diagonale s'étendant jusqu'à un creux diagonal de la plaque de guidage (36) en formant la fente de pliage (33), et la plaque de guidage (36) comportant un corps de renvoi (35) diagonal essentiellement cylindrique opposé à la bride de renvoi, et sur le côté de la plaque de guidage (36), qui est détourné de la plaque de recouvrement (19), étant prévus enfin la fente de sortie (49) et les moyens d'entraînement de sortie (42, 43, 39).
  2. Dispositif selon la revendication 1, caractérisé en ce qu'aussi bien la plaque de recouvrement (19) que la plaque de guidage (36) comportent au début de la fente d'entrée (18) des encoches, à travers lesquelles des rouleaux de transport placés l'un en face de l'autre du dispositif de rouleaux d'entraînement (21, 22) s'étendent jusque dans la fente d'entrée (18).
  3. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que la fente de sortie (49) comporte d'une part des tronçons de bandes transporteuses (42, 43) se déplaçant dans le sens d'éjection et d'autre part des corps roulants de maintien (39) affectés à celles-ci servant de moyens d'entraînement de sortie.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce qu'en amont de la fente d'entrée (18) est placé un dispositif d'amenée (11) comportant un dispositif de retenue (23) qui, de manière commandée (29), retient la feuille à transporter lorsque le dispositif de rouleaux d'entraînement (21, 22) est actif ou la libère pour celui-ci.
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que la plaque de recouvrement (19), y compris une partie comportant des rouleaux du dispositif de rouleaux d'entraînement (21, 22), est logée de manière orientable (31, 32) par rapport à la plaque de guidage (36).
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que la plaque de guidage (36) comporte des creux à cage (38), dans lesquels sont logées des billes servant de corps roulants de maintien (39) sous forme de rangées placées en face de bandes transporteuses (42, 43) au-dessus de la fente de sortie (49).
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que la vitesse de transport dans la fente de sortie (49) est réglée de manière à être supérieure à celle dans la fente d'entrée (18).
EP92908174A 1991-07-04 1992-04-13 Dispositif pour le retournement d'une feuille avec changement simultane du sens de transport Expired - Lifetime EP0559846B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4122214 1991-07-04
DE4122214A DE4122214A1 (de) 1991-07-04 1991-07-04 Einrichtung zum wenden eines blattes unter gleichzeitiger aenderung der foerderrichtung
PCT/EP1992/000829 WO1993001115A1 (fr) 1991-07-04 1992-04-13 Dispositif pour le retournement d'une feuille avec changement simultane du sens de transport

Publications (3)

Publication Number Publication Date
EP0559846A1 EP0559846A1 (fr) 1993-09-15
EP0559846B1 true EP0559846B1 (fr) 1996-07-17
EP0559846B2 EP0559846B2 (fr) 2001-03-21

Family

ID=6435463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92908174A Expired - Lifetime EP0559846B2 (fr) 1991-07-04 1992-04-13 Dispositif pour le retournement d'une feuille avec changement simultane du sens de transport

Country Status (4)

Country Link
US (2) US5362039A (fr)
EP (1) EP0559846B2 (fr)
DE (2) DE4122214A1 (fr)
WO (1) WO1993001115A1 (fr)

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Also Published As

Publication number Publication date
DE4122214A1 (de) 1993-01-14
USRE38867E1 (en) 2005-11-08
US5362039A (en) 1994-11-08
DE59206783D1 (de) 1996-08-22
EP0559846B2 (fr) 2001-03-21
EP0559846A1 (fr) 1993-09-15
WO1993001115A1 (fr) 1993-01-21

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