EP0795503B1 - Procédé et dispositif pour aligner des objets plats - Google Patents

Procédé et dispositif pour aligner des objets plats Download PDF

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Publication number
EP0795503B1
EP0795503B1 EP97103681A EP97103681A EP0795503B1 EP 0795503 B1 EP0795503 B1 EP 0795503B1 EP 97103681 A EP97103681 A EP 97103681A EP 97103681 A EP97103681 A EP 97103681A EP 0795503 B1 EP0795503 B1 EP 0795503B1
Authority
EP
European Patent Office
Prior art keywords
suction
article
abutment
speed
oriented
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
EP97103681A
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German (de)
English (en)
Other versions
EP0795503A3 (fr
EP0795503A2 (fr
Inventor
Martin Blümle
Engelbert Rottmann
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.)
Winkler and Duennebier GmbH
Original Assignee
Winkler and Duennebier 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 Winkler and Duennebier GmbH filed Critical Winkler and Duennebier GmbH
Publication of EP0795503A2 publication Critical patent/EP0795503A2/fr
Publication of EP0795503A3 publication Critical patent/EP0795503A3/fr
Application granted granted Critical
Publication of EP0795503B1 publication Critical patent/EP0795503B1/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
    • 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
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/14—Retarding or controlling the forward movement of articles as they approach stops

Definitions

  • the invention relates to a method and an apparatus for Alignment of flat objects with precise position and machine cycle, especially of envelopes, envelope blanks and the like, with the features of the preambles of the claims 1 and 6.
  • Such a method and a corresponding device are known from DE 1 975 730 U.
  • the Arches pass through a horizontal conveying plane that is between two rotating conveyor belts arranged directly one above the other is formed, each of the sheets over their entire surface Capture top and bottom.
  • In parallel to that lower conveyor belt runs around a chain belt that with stops engages in the funding level.
  • FR 1 173 177 A is a sheet feeder for a printing press known, in which the bow is raised by means of a vacuum cleaner and passed on to a pair of conveyor rollers that it drives in the conveying direction and into a gripper device pushes that arranged on an endlessly rotating conveyor is. Because the sheet when inserted into the gripper device are still in the grip of the pair of conveyor rollers, they can positionally not be corrected.
  • a stationary stop is provided, which in the conveyor path of the Bow can be swung in and out. This is just that rhythmical phase position of the bow, but again not its angular positional orientation can be corrected, since the arch at Impact on the stop is determined by the vacuum cleaner.
  • the revolving conveying means arranged with small longitudinal distances hollow crossbars with suction openings, which makes the Sheets at a variety of spread over their entire bottom Points on the funding are held firmly.
  • the invention has for its object a method and to show a device with which not only a precise phase Longitudinal alignment but also a precise angular orientation is achieved within the item level and also flexible paper cuts safely and reliably and with high Quantity can be processed.
  • the object is pulled according to the invention and not pushed or pressed, as in the prior art Case is. This ensures that its rear end can freely follow and can also align himself freely, when the object hits the stop (s). Production disruptions even with the largest quantities and the highest Machine performance can therefore be in the area of an alignment station avoid.
  • At least one traction device is provided with the help of the driver on the object to be aligned at least in the area of its front in the direction of movement Edge attacks.
  • the traction device can help working from suction air. It can be controlled very precisely so that the holding force in the area of the leading Edge of the object to be aligned according to the can be set exactly to the respective requirements.
  • a device 1 for making flat and relative slightly flexible objects 6 'and specifically from envelopes 2 comprises several stations, of which in Fig. 1 a tray 3 for one Envelope stack 4 above part of a facility 5 for drying rubberized, almost finished Envelopes and, in this respect, of blank envelopes 6 and to the right of it a station 7 are shown, in which the envelope blanks 6 finished and finally finished placed in a stack of envelopes 4.
  • a storage device 8 in the form of a serrated lock washer 9.
  • the almost finished envelope blanks 6 for example in a staggered arrangement transported through the drying device 5 and then basically between belts 10 and 11 also known known pull-out roller 12 and with it Help either sporadically or in relation to each other changed.
  • a switch 13 Located behind the pull-out roller in the direction of travel preferably a switch 13, for example when starting the device 1 possibly to malfunctions eject leading envelope blanks 6 can.
  • the envelope blanks 6 are basically with the bottom fold first through the device 5 for drying and in this position also led to the pull-out roller 12.
  • a device 14 for aligning the envelope blanks 6 so this one in the last edit performing device 15 with the flap fold can be provided.
  • the envelopes then completed 2 are taken over by the serrated lock washer 8 and placed on the storage table 3.
  • the alignment device 14 includes one Driver 16 for the envelope blank 6 and Carrier 17, 18 for stops 19.
  • the driver 16 acts it is a transport disc 16 'and the carriers 17, 18 are support disks 17 'and 18', between which the transport disc 16 'according to the in Fig. 2 shown embodiment is arranged.
  • serving device 14 ensure are assigned to their delivery rollers 14 'according to FIG.
  • the two support disks 17 'and 18' are common Shaft 20 driven.
  • the transport disc 16 ' is also on this wave 20, but with the help of bearings 21 freely rotatably mounted so that it has its own Drive 22 at a higher speed than the support disks 17 'and 18' can be driven.
  • the drive 22 is according to the schematic 1 around a friction wheel drive 22 'with a own engine 23. It is therefore possible that the shaft 20 with the support disks 17 'and 18' at the machine speed runs while the transport disk 16 ' turns faster. For a perfect friction wheel drive 22 ' a sprung friction wheel 22 '' is provided, that in the gap between the friction wheel drive 22 ' and the transport disk 16 'presses.
  • the suction openings 27 serve together with suction air, i.e. together with one against atmospheric pressure Negative pressure as a traction device that as a driver 16 acting transport disc 16 'to be aligned Object 6 'or envelope blank 6 each in the area its front edge 6 '' and accordingly the own peripheral speed.
  • the suction openings 27 hold and pull the object 6 'until it is with its front edge 6 '' to one or both stops 19 strikes and thereby aligned and on their speed is braked.
  • the diameter of the transport disk 16 ' can be dimensioned in this way be used to align one or more Objects 6 'is suitable.
  • suction openings 27 each combined into axially parallel rows and with Suction channels 28 also extending axially parallel connected to one end 29 of the transport disc 16 'are open.
  • annular disc 30 with holes 31 is attached, each aligned with the suction channels 28.
  • stationary suction head 32 with a suction connection pipe 33 and a control valve body 34 and the Design of the support disc 17 'on the front side 29 of the transport disk 16 'is arranged.
  • the hub 34a supports, for example, with the help of ball bearings 35 the suction head 32 not rotating during operation, the one axially parallel and connected to the suction connection pipe 33 Has bore 36.
  • the suction head 32 is part of the operation also non-rotating control valve body 34, the one connected to the bore 36 and in the direction of rotation extending segmentally over a little more than 90 ° Control channel 37 has.
  • This control channel 37 is also open towards the support disk 17 '.
  • the support disk 17' points a control window 38 open towards the control channel 37, through a radially directed bore 39 and a short, Axially parallel bore 40 with a suction segment 41 is connected, which in turn is connected to the suction channel or channels 28 cooperates in the transport disc 16 '.
  • the support disc 17 not only just like the other support disk 18' three Stop 19 on, but it is also with three control windows 38, 38 'and 38' 'and each associated, radially directed Bores 39, 39 'and 39' 'and associated Suction segments 41, 41 'and 41' 'provided.
  • Each suction segment 41 has a suction window 43 which is such is dimensioned that there is at least one suction channel 28 in the transport disc 16 'completely or two adjacent Suction channels 28, 28 'partially detected.
  • the transport disk 16 ' can be used to grasp one to be aligned Object 6 'suction openings 27 along a single Row or several to pull the object 6 'suction openings 27 arranged in parallel rows exhibit.
  • the cross section of the suction openings 27 can also circular like holes or slit-shaped.
  • the envelope blanks are regulated or aligned 6 along an alignment section 50 (FIG. 1), which is curved. Specifically, it is about a segment of a segment-shaped path, since the alignment on the cylindrical circumference of a rotating transport disc 16 'and with the help of two support disks 17' and 18 ' he follows.
  • the invention is not based on such Embodiment limited because it is also along a different type - such as along one in a plane extending path or alignment section 50a - realized can be.
  • 5-8 relate to such a device 1a with a flat alignment section 50a, wherein features similar there have the same reference numbers as that Device 1 and additionally have the letter index a.
  • envelope blanks 6a which are used for Example from a device for drying with backwards directional closing flaps as well as staggered condition come.
  • the driver 16a is in accordance with Embodiment a toothed belt 64a and moves in the working plane 61a with a flat alignment section 50a a defined speed.
  • the driver 16a or toothed belt 64a lies with its upper one Trumm 65a in the working level 61a and has as a traction device serving suction openings 27a, which with negative pressure or Suction air are applied.
  • the vacuum is due to the Suction openings 27a along the entire alignment section 50a on, for which purpose a suction box on the underside of the toothed belt 64a 66a is arranged.
  • Top wall 67a are the suction openings 27a associated openings 68a. These openings 68a are in accordance with 8 in the transport direction is relatively large and only separated by webs 69a.
  • suction box 66a Laterally on the suction box 66a are also for sealing and guidance of the suction or toothed belt 64a serving sealing elements 71a (Fig. 7) arranged. Lead connections 72a finally from the suction box 66a to one in FIGS. vacuum generator, not shown.
  • a further toothed belt 73a is arranged in each case.
  • These toothed and regulating belts 73a each serve as carriers 17a, 18a for stops 19a.
  • the stops 19a can depending on the format of the envelope blanks 6a at a distance to each other (transverse to the transport direction, Fig. 7) adjustable his.
  • the two tooth and Regulating belts 73a run with their upper runs 74a in the same direction and also in the working level 61a as that Suction or toothed belt 64a.
  • the timing and regulating belts 73a move at a slower speed than the suction and timing belt 64a.
  • the location and arrangement of the suction openings serving as traction means 27a in the suction and toothed belt 64a is selected in such a way that the objects to be aligned 6 'or envelope blanks 6a each in the area of their leading Edge 6''a gripped by the suction and toothed belt 64a and get picked up.
  • the envelope blanks 6a are so long with the higher speed of suction and Timing belt 64a pulled along the alignment section 50a until they with their edge 6''a to the stops 19a to the system come and align yourself with them.
  • the suction and timing belt 64a then slips on the envelope blank with little slip 6a through slightly until the suction and toothed belt 64a the envelope blank 6a to those who transport it Rolls 75a and 76a releases.
  • Segment roller 62a specifically consists of two on one shaft 83'a arranged and driven by this disks 84a with segment elements arranged on their circumference 85a.
  • the suction roller 63a assigned to the segment roller 62a comprises a roller body 86a, which is rotationally fixed with a driven Shaft 87a connected and arranged in the side Swivel arms 88a is mounted.
  • Fig. 6 shows the suction roll 63a in a pivoted-down position compared to the illustration in FIG. 5 Location.
  • Control valves are located on each end of the roller body 86a 89a provided. They do not rotate with shaft 87a and not even with the roller body 86a.
  • roller body 86a are close to the circumference axially from the end face Suction channels 90a running continuously to the end face provided that with radially directed bores 91a are connected to the cylinder jacket 92a.
  • the suction channels 90a one after the other on each short side with negative pressure or suction air and atmospheric pressure.
  • the control valves 89a in which each one short suction channel 93a is located, which has a suction connection piece 94a is in air-conducting connection. Further is a channel 95a is provided in the control valves 89a, through which the suction channels 90a in the roller body 86a with atmospheric Pressure are supplied.
  • the objects 6'a or the envelope blanks 6a sucked by the suction roller 63a from its staggered state slightly raised in an arc shape - causing snagging is avoided especially with window covers - and furthermore, they are separated with the segment roller 62a.
  • the envelope blanks 6a to the as driver 16a serving timing belt 64a released, whereupon the alignment using the toothed belts 64a and 73a.

Claims (15)

  1. Procédé pour orienter en une position précise et selon la cadence de machine précise des objets plats (6', 6'a), notamment des enveloppes (2), des ébauches d'enveloppe (6, 6a) et analogues, où l'objet à orienter (6', 6'a) est déplacé le long d'un trajet d'alignement (50, 50a) à une vitesse qui est plus grande que la vitesse d'au moins une butée (19, 19a) se déplaçant dans la même direction, et où l'objet (6', 6'a) est déplacé à la vitesse plus grande, jusqu'à ce qu'il soit aligné par la butée (19, 19') et freiné par elle à la vitesse de celle-ci, caractérisé en ce que l'objet à aligner (6', 6'a) est saisi et tenu au milieu seulement au voisinage de son arête avant (6'', 6''a) et est tiré à travers le trajet d'alignement (50, 50a), où il heurte avec son arête avant (6'', 6''a) deux butées latérales (19, 19a) qui sont opposées l'une à l'autre à une distance transversale.
  2. Procédé selon la revendication 1, caractérisé en ce que l'objet à aligner (6', 6'a) est déplacé au moins jusqu'à ce qu'il s'applique aux butées (19, 19a) le long d'un trajet d'alignement courbé (50) et/ou d'un trajet d'alignement plan (50a).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'objet (6', 6'a) pendant son déplacement le long du trajet d'alignement (50, 50a) est tenu à l'aide d'une dépression/air d'aspiration.
  4. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'objet (6', 6'a), pendant son déplacement le long du trajet d'alignement (50, 50a) est tenu électriquement à l'aide d'une charge électrostatique.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que, pour relâcher l'objet (6', 6'a) et la butée (19, 19a), il est produit encore une fois un déplacement relatif/une vitesse relative entre l'objet (6', 6'a) et la butée (19, 19a), et de préférence la vitesse de l'objet (6', 6'a) est diminuée encore une fois.
  6. Dispositif pour la mise en oeuvre du procédé selon l'une des revendications 1 à 5, où pour l'alignement d'objets plats (6', 6'a), notamment d'enveloppes (2), d'ébauches d'enveloppe (6, 6a) et analogue, sont prévus un organe d'entraínement mobile (16, 16a) pour l'objet à orienter (6', 6'a) et un support parallèle et déplaçable lentement (17, 17a respectivement 18, 18a) avec au moins une butée (19, 19a), caractérisé en ce que l'organe d'entraínement mobile (16, 16a) est un moyen de traction qui s'applique centralement à l'objet à orienter (6', 6'a) seulement au voisinage de son arête avant (6'', 6''a), et que chaque butée (19, 19a,) est fermée par deux butées latérales (19, 19 ; 19a, 19a) qui sont opposées l'une à l'autre selon un écart transversal.
  7. Dispositif selon la revendication 6, caractérisé en ce que des ouvertures d'aspiration (27, 27a) à dépression sont prévues comme moyens de traction.
  8. Dispositif selon la revendication 7, caractérisé en ce que les ouvertures d'aspiration (27, 27a) sont associées seulement à un côté plat des objets (6', 6'a).
  9. Dispositif selon l'une des revendications 6 à 8, caractérisé en ce qu'il est prévu comme organe d'entraínement (16) un disque de transport (16') qui est disposé entre deux disques d'appui (17', 18') portant les butées (19).
  10. Dispositif selon la revendication 9, caractérisé en ce que le disque de transport (16') est logé sur le même arbre (20) que les disques d'appui (17' et 18') et qu'il présente une commande propre (22).
  11. Dispositif selon la revendication 9 ou 10, caractérisé en ce que le disque de transport (16') présente au pourtour (26) au moins une rangée d'ouvertures d'aspiration (27) orientées radialement et respectivement un canal d'aspiration (28) reliant celles-ci, disposé selon un parallélisme des axes, ouvert à un côté frontal (29), et qu'au moins un disque d'appui (17') présente au moins un segment d'aspiration (41) orienté vers le canal d'aspiration (28)/les canaux d'aspiration (28), qui est en liaison par un perçage radial et au moins un perçage orienté pour qu'il y ait un parallélisme des axes (39, 40) avec une tête d'aspiration stationnaire (32).
  12. Dispositif selon la revendication 11, caractérisé en ce que le segment d'aspiration (41) présente une fenêtre d'aspiration (43) de façon à saisir au moins l'un des canaux d'aspiration (28) orientés selon un parallélisme des axes dans le disque de transport (16) complètement ou deux canaux d'aspiration avoisinants (28, 28') partiellement, et que le disque d'appui (17') présente de préférence des perçages (39', 40) pour trois segments d'aspiration (41, 41' et 41'').
  13. Dispositif selon l'une des revendications 6 à 8, caractérisé en ce qu'il est prévu comme organe d'entraínement (16a) au moins une courroie dentée (64a) qui, en tant que moyen de traction, présente au moins une ouverture d'aspiration (27a) à dépression.
  14. Dispositif selon la revendication 13, caractérisé en ce que sont prévus comme supports (17a, 18a) deux courroies dentées (73a, 73a) se trouvant aux flancs de la courroie dentée d'entraínement (64a), qui portent respectivement au moins une butée (19a).
  15. Dispositif selon la revendication 13 ou 14, caractérisé en ce que les ouvertures d'aspiration (27a) sont associées au côté inférieur des objets (6'a).
EP97103681A 1996-03-14 1997-03-06 Procédé et dispositif pour aligner des objets plats Expired - Lifetime EP0795503B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19609991 1996-03-14
DE19609991A DE19609991A1 (de) 1996-03-14 1996-03-14 Verfahren und Vorrichtung zum Ausrichten von flachen Gegenständen, insbesondere von Briefumschlägen

Publications (3)

Publication Number Publication Date
EP0795503A2 EP0795503A2 (fr) 1997-09-17
EP0795503A3 EP0795503A3 (fr) 1998-06-10
EP0795503B1 true EP0795503B1 (fr) 2000-01-12

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Application Number Title Priority Date Filing Date
EP97103681A Expired - Lifetime EP0795503B1 (fr) 1996-03-14 1997-03-06 Procédé et dispositif pour aligner des objets plats

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US (1) US5938193A (fr)
EP (1) EP0795503B1 (fr)
JP (1) JP4007520B2 (fr)
DE (2) DE19609991A1 (fr)
ES (1) ES2143262T3 (fr)

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DE59700990D1 (de) 2000-02-17
US5938193A (en) 1999-08-17
DE19609991A1 (de) 1997-09-18
EP0795503A3 (fr) 1998-06-10
EP0795503A2 (fr) 1997-09-17
ES2143262T3 (es) 2000-05-01
JP4007520B2 (ja) 2007-11-14
JPH1095555A (ja) 1998-04-14

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