EP0212246B1 - Dispositif pour changer la direction du transport de feuilles de papier - Google Patents

Dispositif pour changer la direction du transport de feuilles de papier Download PDF

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Publication number
EP0212246B1
EP0212246B1 EP86109645A EP86109645A EP0212246B1 EP 0212246 B1 EP0212246 B1 EP 0212246B1 EP 86109645 A EP86109645 A EP 86109645A EP 86109645 A EP86109645 A EP 86109645A EP 0212246 B1 EP0212246 B1 EP 0212246B1
Authority
EP
European Patent Office
Prior art keywords
rollers
delivery
guide bar
roller
conveyor
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
Application number
EP86109645A
Other languages
German (de)
English (en)
Other versions
EP0212246A1 (fr
Inventor
Stephan Möbs
Peter Hög
Jürgen Dreschel
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.)
Bell and Howell GmbH
Original Assignee
Bell and Howell GmbH
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 Bell and Howell GmbH filed Critical Bell and Howell GmbH
Publication of EP0212246A1 publication Critical patent/EP0212246A1/fr
Application granted granted Critical
Publication of EP0212246B1 publication Critical patent/EP0212246B1/fr
Expired 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
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/16—Inclined tape, roller, or like article-forwarding side registers
    • B65H9/166—Roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/12—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/58—Article switches or diverters
    • 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
    • B65H2301/33—Modifying, selecting, changing orientation
    • 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
    • B65H2301/341—Modifying, selecting, changing direction of displacement without change of plane of displacement

Definitions

  • the invention relates to a device for redirecting the conveying direction of paper sheets on a conveying path between processing or handling stations, with a feed device, the output side of which opens out onto a storage table which has an arrangement of driven conveying rollers, the apex of which lies approximately in the table plane, and with a guide ruler for lateral guidance of the paper sheet edge on the end with respect to the conveying direction of the feed device in the deflecting direction, the axes of the conveying rollers not being perpendicular to the deflecting direction, but inclined in such a way that the roller conveying direction has a component pointing to the guide ruler, and in which Balls that are assigned to the conveyor rollers and are supported against the roller crowns are mounted in a guide line.
  • Deflection devices of this type are used, for example, to feed a paper sheet from an input station, for example in the form of a cutting device, which cuts individual paper sheets from an endless form, perpendicular to the direction of migration of the paper sheet from the input station to a folding unit.
  • a deflection device of the type described here can also be provided between two folding units if a paper sheet is to be folded crosswise.
  • paper sheet is also to be understood to mean a structure formed by folding a paper sheet, and the term “paper sheet edge” is also to be understood to mean the folded edge.
  • the setting of the distance between the guide ruler and the discharge side of the feed device has hitherto been achieved in that the guide ruler has been made displaceable parallel to itself in the direction of the axes of the conveyor rollers.
  • the invention is intended to achieve the object of designing a device for deflecting the conveying direction of paper sheets of the type briefly described at the outset in such a way that faults caused by a paper sheet getting caught on the guide ruler are reliably avoided and on an adjustability of the distance between the guide ruler and the output side the feed device does not have to be dispensed with.
  • the feed device is adjustable parallel to its conveying direction in such a way that the position of its output side can be adjusted according to the format of the paper sheets to be handled relative to the guide ruler which is essentially fixedly arranged on the storage table and which has a continuous guide flange of its profile extends below the level of the roller crowns on the end faces of the conveyor rollers facing the guide ruler.
  • the guide ruler of the device proposed here is thus arranged in a fixed manner on the end faces of the conveyor rollers facing it and therefore does not need to be provided with a guide flange provided with arcuate cutouts, so that the guide flange can be designed continuously and in cross section, for example angled or hooked, with a guide groove in front of the end of the conveyor rollers, in which the paper edge to be guided runs.
  • the adjustability of the distance between the guide ruler and the delivery side of the feed device is realized by an adjustability of the feed device, which preferably contains at least two drive belts arranged next to one another, against the upper run of which a pressure belt arrangement guided over pairs of rollers is pretensioned, rollers on the output side of the feed device for guiding the drive belts are mounted on a sled which can be moved towards or away from the guideline to adjust the output side to the paper format, while at the same time further rollers, which support the drive belt in a compensation loop, can be moved accordingly to maintain a constant drive belt path.
  • the delivery table can have a delivery section upstream of the delivery roller arrangement, which has a number of air extraction openings, under which there is an extraction fan, and on its side facing the delivery roller arrangement, a further one, to the axes of the aforesaid Conveyor rollers parallel and corresponding conveyor roller contains that operated with a controlled baren pressure roller cooperates, which pressure roller can be actuated by an actuating drive, such as an electromagnet.
  • an actuating drive such as an electromagnet.
  • the invention also proposes a method for deflecting paper sheets on a conveying path between processing or handling stations, in which a sheet of paper is conveyed from a feed device to a storage table against a guide ruler, which is in particular oriented perpendicular to the conveying direction of the feed device and in which pressure balls are supported, which are supported against the apex of conveyor rollers, the axes of the conveyor rollers are inclined so that the conveying directions of the conveyor rollers have a component towards the guide ruler and the paper sheets after being fed onto the tray table in a tray section thereof initially during a short dwell time, in particular by suctioning off the air located under the paper sheets, in order to then be fed to the aforementioned conveyor roller arrangement by an auxiliary drive.
  • the auxiliary drive can be formed by a further conveyor roller located in the storage section, which is also inclined, and a pressure roller that can be pressed on the apex, which is pressed by means of an actuating drive, for example by means of a rotary magnet, by an actuating signal which, after a certain time delay after a signal occurs, which reports the feeding of a sheet of paper to the storage section of the storage table.
  • the guide ruler is connected with a sliding guide in the manner indicated schematically by dot-dash lines at 3 in FIG. 3, which is parallel to the axes of rotation of the driven conveyor rollers of a storage table, of which only the conveyor rollers 4 and 5 are shown in Figure 3.
  • the axes of rotation of the conveyor rollers do not run perpendicular to the guide flange 1 of the guide ruler 2, but are inclined in such a way that the conveying direction in the region of the roller apex has a component towards the guide flange 1 of the guide ruler, whereby a precise alignment of one with a sheet edge on the guide flange 1 upcoming paper sheet is reached.
  • the lower edge of the guide flange must be located below the level of the roller apex. Since the guide ruler 2 can now be moved over the conveyor rollers on the sliding guides 3, the guide flange 1 must be equipped with arcuate cutouts 7 which surround the roller circumference at a certain distance in the region of the roller crowns.
  • the front paper tip which is located on the left-hand side with reference to the illustration of FIG. 2 and FIG. 3, can be in one the exposed gap between the roller crowns and the upper areas of the arcuate cutouts 7 of the guide flange 1, which leads to faults. This difficulty is avoided with a device according to FIGS. 1 and 2.
  • An input station 11 is indicated schematically in FIG. 1, which can be formed by a sheet feeder, a cutting device for separating form sheets from a continuous form or the like.
  • a downstream processing or handling station 12 is arranged relative to the input station 11 in such a way that the conveying direction of a paper sheet out of the input station 11 and the feed device into the processing or handling station 12 form a right angle to one another.
  • a deflection device 13 of the type specified here is arranged between the input station 11 and the processing or handling station 12 and is designed in such a way that a paper sheet fed from the input station 11 executes a translational movement, that is to say without executing a rotation, at a right angle is conveyed to the feed direction to the processing or handling station 12.
  • the deflection device 13 contains a feed device 14 and a storage table 16 which contains an arrangement of driven feed rollers 15 and which has a storage section 17 which with respect to the feed device to station 12, the table section which contains the conveyor roller arrangement is connected upstream.
  • a guide ruler 18 extends along the storage table 16 and parallel to the feed direction to the processing or handling station 12, the cross-sectional shape of which can be seen in detail in FIG. 2.
  • the guide ruler 18 is designed to be fixed relative to the storage table 16, which in the context of the present description and the claims also means an embodiment in which the guide ruler can be folded up from the storage table. In any case, however, the guide ruler 18 cannot be displaced transversely to the feed device to the station 12 or parallel to the conveying direction of the feed device 14. Details of the connection of the guide ruler 18 to the storage table 16 have been omitted to simplify the illustration.
  • the apexes of the conveyor rollers 15 lie approximately in the plane of the storage table.
  • the roller axes do not run perpendicular to the feed direction to the station 12, but run within a horizontal plane at such an angle to a perpendicular to the guide ruler 18 that the conveying direction on the roll circumference in the area of the roll apex has a small component in the direction of the guide ruler, as already in In connection with Figure 3 has been explained.
  • the guide ruler 18 has an insertion flange 19 which is inclined towards the roller crowns and to which a profile web 20 running parallel to the roller crowns adjoins.
  • the pressure balls 9 are supported in this profile web 20 by means of plastic bushings 8 and secured against jumping out by means of a rod 10 running across the balls, as was also described above with reference to FIG. 3.
  • the guide ruler 18 according to FIG. 3 In contrast to the guide ruler 2 according to FIG. 3, however, the guide ruler 18 according to FIG.
  • the feed device 14 contains two conveyor belts 23 and 24 arranged parallel to one another, the respective upper run of which support and convey a sheet of paper to be fed to the storage table.
  • the conveyor belts 23 and 24 are guided on the side close to the input station 11 via a roller 26 driven by a motor 25 and on the side close to the storage table 16 via rollers 27 and 28 which are mounted on a slide 29, this slide being an im has substantially stair-shaped housing 30 which is provided with cutouts in which the aforementioned rollers 27 and 28 are accommodated.
  • the slide 29 is guided by means of guide strips 31 which are attached to the side walls 32 of the device in a horizontal direction, the person skilled in the art readily recognizing that a corresponding sliding guide for the slide 29 is provided on the housing wall opposite the wall part 32 according to FIG 1, which is also omitted in FIG. 1 to simplify the illustration, as is a nut piece provided on the slide 29 and a threaded spindle mounted on the housing for displacing the slide 29 in the horizontal direction parallel to the conveying direction of the feed device 14.
  • the lower run of the conveyor drive belts 23 and 24 runs from the rollers 27 and 28 to deflection rollers 33 and 34, and a length compensation drive belt loop of the conveyor drive belts extends from the driven roller 26 and from the rollers 33 and 34 to further rollers 35 and 36, which are mounted on bearing brackets 39 and 40 braced by means of springs 37 and 38 respectively. It can be seen that when the slide 29 is moved towards the guide ruler 18 or away from it, the drive belt loop of the conveyor drive belts 23 and 24 containing the upper run lengthens or shortens, while at the same time the respective length compensation loop while elongating or shortening the springs 37 and 38 is shortened or extended.
  • rollers 43 and 45 close to the storage table 16 are mounted on an axis 46, which forms part of a frame 47, the angular side parts of which, in turn, are pivotably mounted on supports fixed to the housing via an axis 48 and by means of air pressure spring elements 50 in the direction of the Conveyor belts 23 and 24 are biased.
  • links 51 and 52 are pivotally mounted, on which in turn the rollers 44 and 46 are mounted.
  • the links 51 and 52 are pretensioned in the pivoting direction on the conveyor drive belts 23 and 24, so that the rollers 44 and 46 each associated with them Press keep belts 41 and 42 taut and press the pressure belt in cooperation with the compressed air spring elements 50 against the associated conveyor belt.
  • a paper sheet fed from the input station 11 thus passes between the conveyor drive belts 23 and 24 on the one hand and the pressure belts 41 and 42 on the other hand and is conveyed to the storage section 17 of the storage table 16, the front sheet edge finally being guided by guide fingers 55 which are attached to the guide ruler 18 have reached, as well as under the lead-in flange of the guide ruler and finally abuts the guide flange of the guide ruler.
  • the rear edge of the sheet travels over a light barrier 56, and details of this light barrier, as known to the person skilled in the art, do not require any further description here.
  • the light barrier 56 emits a signal on the line 57 when the rear edge of the sheet is being built, which signal is fed into a control device 58.
  • the control device 58 generates a control signal on the line 59 with a certain time delay after the occurrence of the detector signal on the line 57, the delay time being adjustable in the control device 58.
  • the control signal of line 59 is fed to an actuating drive 60 in the form of a rotary magnet which presses a pressure roller 62 mounted on a link 61 against another driven conveyor roller 63 arranged in the region of the depositing section 17 of the depositing table 16.
  • the axis of the conveyor roller 63 is parallel to the axes of the conveyor rollers 15, that is, the conveyor roller 63 is inclined just like the aforementioned conveyor rollers.
  • the bearing surface of the storage table section 17 contains air suction openings 64, below which there is an air suction fan 65 which sucks air underneath a supplied sheet of paper through the suction openings or suction slots 64 in the direction of the arrows P downward.
  • the delayed removal of the paper sheet placed by the feed device onto the delivery table 16 by the conveyor roller 63 and the pressure roller 62 can be dispensed with, so that in this case the paper sheet is immediately accelerated in the direction of the station 12 by the driven conveyor rollers.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Registering Or Overturning Sheets (AREA)

Claims (8)

1. Dispositif de renvoi du sens de transport des feuilles de papier le long d'un parcours de transport s'étendant d'une station (11) jusqu'à une station de traitemennt ou manipulation (12), comprenant un dispositif d'amenée (14) dont le côté de sortie débouche sur une table de réception (16) qui comprend un système des rouleaux entraînés de transport dont les sommets se trouvent dans le plan de la table, et comprenant en plus un règle-guide (18) pour le guidage latéral des bords de bout, relativement au sens de transport du dispositif d'amenée, des feuilles de papier au sens de renvoi, les axes desdits rouleaux de transport étant inclinés sur le sens de renvoi tellement que le sens de transport dudits rouleaux possèdent une composante dirigeante vers ledit règle-guide, pendant que des billes (3) sont logées dans ledit règle-guide et qui correspondent respectivement, en s'appuyant contre les sommets des rouleaux, à chacun desdits rouleaux de transport, caractérisé en ce que ledit dispositif d'amenée (14) est déplaçable en parallèle à son sens de transport d'une façon que la position de son côté de sortie est ajustable en correspondance avec le format des feuilles de papier à manipuler, relativement audit règle-guide immobilisé à ladite table de réception, et en ce qu'une bride de guidage continue (21) du profil dudit règle-guide descend, aux bords de bout adjacents audit règle-guide, desdits rouleaux de guidage, jusqu'en dessous du niveau des sommets desdits rouleaux.
2. Dispositif selon la Revendication 1, caractérisé en ce que ledit règle-guide comprend une bride d'introduction (19) inclinée vers les sommets desdits rouleaux, ainsi qu'une traverse (20) parallèle aux sommets desdits rouleaux, dans laquelle lesdites billes sont logées, et en ce que ladite bride de guidage (21) suit ladite traverse (20), qui descend aux bords de bout desdits rouleaux de transport et dont le profil en travers est croché ou angulaire.
3. Dispositif selon la Revendication 1 ou 2, caractérisé en ce que la table de réception comprend, en tête du système des rouleaux de transport, une section de réception (17) directement opposée au côté de sortie dudit dispositif d'amenée, ladite section de réception comprenant une pluralité des passages d'aspiration d'air (64) au-dessous desquels se trouve un ventilateur aspirateur, pendant qu'il y a, au côté de la table adjacent au système des rouleaux de transport, un rouleau de transport supplémentaire (63) parallèle aux axes desdits rouleaux de transport et y correspondant, qui coopère avec un galet presseur (62) à actionnement contrôlable.
4. Dispositif selon la Revendication 3, caractérisé par des moyens de commande reliés aux moyens détecteurs (56) disposés au côté de sortie dudit dispositif d'amenée, qui fonctionnent en réponse au passage d'une feuille de papier, lesquels moyens sont préférablement constitués par un barrage pho- toélectrique et fournissent un signal de commande à un mécanisme de commande et d'actionnement dudit galet pressur, à action retardée après l'apparition d'un signal de sortie desdits moyens détecteurs.
5. Dispositif selon la Revendication 3 ou 4, caractérisé en ce qu'un mécanisme de commande électromagnétique est pourvu pour l'actionnement dudit galet presseur (62).
6. Dispositif selon quelconque des Revendications 1 à 5, caractérisé en ce que ledit dispositif d'amenée comprend au moins deux courroies d'entraînement (23, 24) l'un à côté de l'autre, un système des courroies de pression (41, 42), guidé autour des paires de poulies simples, étant mis en précontrainte contre les brins supérieurs desdites courroies d'entraînement, et en ce ce que des poulies positionnées au côté de sortie dudit dispositif d'amenée sont logées sur un chariot pour guider lesdites courroies d'entraînement, ledit chariot étant déplaçable pour se rapprocher audit ou s'éloigner dudit règle-guide afin d'achever un ajustage du côté de sortie en correspondance avec le format de papier, pendant qu'au même temps des poulies supplémentaires (35, 36) qui portent lesdites courroies d'entraînement dans une boucle de compensation, sont correspondamment déplaçables pour le maintien d'un chemin constant des courroies d'entraînement par élongation ou raccourcissement desdites boucles de compensation.
7. Dispositif selon la Revendication 6, caractérisé en ce que lesdites paires des poulies simples pour le support du système des courroies de pression sont logées à un cadre (47) pivotant relativement à un bâti, des moyens de ressort (53, 54) mettant ledit cadre en précontrainte vers les brins supérieurs desdites courroies d'entraînement, et en ce que des poulies simples desdites paires, qui se trouve près du côté d'entrée dudit dispositif d'amenée, sont encore logées aux bras oscillants pivotables autour un axe dudit cadre et mis en précontrainte au sens de pivotement pour le réglage de tension desdites courroies de pression moyennant lesdits moyens de ressort.
8. Procédé de renvoi des feuilles de papier le long d'un chemin de transport entre des stations de traitement ou manipulation, dans lequel les feuilles de papier sont guidées d'un dispositif d'amenée (14) sur une table de réception (16) et entraînées sur ladite table de réception à un positionnement angulaire relatif audit dispositif d'amenée, moyennant des rouleaux de transport entraînés (15) dont les axes sont inclinés relativement au dispositif de sortie d'une façon que le sens de transport ait une composante vers un guide-règle disposé en parallèle au sens de sortie, caractérisé en ce que ladite feuille de papier, avant être sortie, est maintenue par desdits rouleaux de transport inclinés, sur une section de réception ou de dépôt de la table de réception pour un court temps momentané, en particulier par l'aspiration de l'air au dessous ladite feuille de papier, et en ce que ladite feuille est amenée auxdits rouleaux de transport entraînés (15) moyennant un dispositif d'entraînement auxiliaire (62, 63) qui se peut mettre en marche à action retardée après le dépôt de la feuille sur la section respective de la table de réception.
EP86109645A 1985-07-13 1986-07-14 Dispositif pour changer la direction du transport de feuilles de papier Expired EP0212246B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3525040 1985-07-13
DE3525040A DE3525040C2 (de) 1985-07-13 1985-07-13 Einrichtung zur Umlenkung der Förderrichtung von Papierblättern

Publications (2)

Publication Number Publication Date
EP0212246A1 EP0212246A1 (fr) 1987-03-04
EP0212246B1 true EP0212246B1 (fr) 1989-01-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109645A Expired EP0212246B1 (fr) 1985-07-13 1986-07-14 Dispositif pour changer la direction du transport de feuilles de papier

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Country Link
US (1) US5004220A (fr)
EP (1) EP0212246B1 (fr)
DE (1) DE3525040C2 (fr)

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Publication number Publication date
EP0212246A1 (fr) 1987-03-04
US5004220A (en) 1991-04-02
DE3525040C2 (de) 1994-05-11
DE3525040A1 (de) 1987-01-15

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