EP0484663A2 - Dispositif pour transporter des feuilles sur des machines de bureau - Google Patents

Dispositif pour transporter des feuilles sur des machines de bureau Download PDF

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Publication number
EP0484663A2
EP0484663A2 EP91116004A EP91116004A EP0484663A2 EP 0484663 A2 EP0484663 A2 EP 0484663A2 EP 91116004 A EP91116004 A EP 91116004A EP 91116004 A EP91116004 A EP 91116004A EP 0484663 A2 EP0484663 A2 EP 0484663A2
Authority
EP
European Patent Office
Prior art keywords
conveyor belt
sheets
belt
pressure
magazines
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.)
Withdrawn
Application number
EP91116004A
Other languages
German (de)
English (en)
Other versions
EP0484663A3 (en
Inventor
Helmut Steinhilber
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0484663A2 publication Critical patent/EP0484663A2/fr
Publication of EP0484663A3 publication Critical patent/EP0484663A3/de
Withdrawn legal-status Critical Current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
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/0661—Rollers or like rotary separators for separating inclined-stacked articles with separator rollers above the stack
    • 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
    • B65H29/16—Delivering or advancing articles from machines; Advancing articles to or into piles by contact of one face only with moving tapes, bands, or chains
    • B65H29/18—Delivering or advancing articles from machines; Advancing articles to or into piles by contact of one face only with moving tapes, bands, or chains and introducing into a pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/44—Simultaneously, alternately, or selectively separating articles from two or more piles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H39/00—Associating, collating, or gathering articles or webs
    • B65H39/10—Associating articles from a single source, to form, e.g. a writing-pad
    • 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
    • B65H5/026—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts between belts and stationary pressing, supporting or guiding elements 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
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/50—Surface of the elements in contact with the forwarded or guided material
    • B65H2404/53—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties
    • B65H2404/539—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties other
    • B65H2404/5391—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties other adhesive properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/50—Surface of the elements in contact with the forwarded or guided material
    • B65H2404/56—Flexible surface
    • B65H2404/561—Bristles, brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/10—Specific machines for handling sheet(s)
    • B65H2408/11—Sorters or machines for sorting articles
    • B65H2408/111—Sorters or machines for sorting articles with stationary location in space of the bins and a diverter per bin

Definitions

  • the invention relates to a device for transporting individual sheets of a sheet-like record carrier in office machines according to the preamble of claim 1.
  • the invention has for its object to provide a device of the type mentioned, in which the pressure device is simple and inexpensive.
  • the surface of the conveyor belt that receives the sheet is arranged opposite a flat body of the pressure device, which presses the sheet against the conveyor belt with thin, soft, elastic pressure elements.
  • the distance between the body of the pressure device and the conveyor belt and the length of the pressure elements is chosen so that on the one hand the conveyor belt does not come into contact with the body of the pressure device, which would lead to a strong frictional resistance for the conveyor belt and the transported sheets, and that on the other hand, the pressure elements are always included, even when there are fluctuations in distance, for example due to sagging of the conveyor belt are in contact with the conveyor belt so that the sheets are reliably held against the conveyor belt.
  • the elasticity of the pressure elements is chosen so that they hold the sheet in contact with the conveyor belt under slight pressure, but they yield to the conveyor belt and the continuous sheet sufficiently flexibly so that they do not cause any resistance to the transportation.
  • the pressure elements must not oppose the transported sheet with any frictional resistance that is greater than the force that carries the sheet between the sheet and the conveyor belt.
  • the body of the pressure device is preferably designed to be stationary, which enables a particularly simple construction.
  • the body can be a rigid plate or a tightly tensioned band. If only one magazine is provided, from which the sheets are transported, or only one storage compartment, to which the sheets are transported, the body of the pressure device can be designed as a continuous surface, the sheets at one end of the body between them and the conveyor belt enter and exit at the other end of the body.
  • the body of the pressure device can be provided with slots which run transversely to the transport device and which are assigned to the respective magazines or storage compartments and through which the sheets exit the magazines can enter or exit between the conveyor belt and the body of the pressure device.
  • the body of the pressure device can also be designed as a continuous flexible belt, one end of which is attached to the transfer unit and to the latter the other end is attacked by a spring force which on the one hand keeps the belt taut and on the other hand enables the belt to move with the transfer unit.
  • the belt moves with the transfer unit, so that it rests on the conveyor belt only in the region of the transport path that changes with the position of the transfer unit.
  • the pressure elements can be designed in a wide variety of ways, provided that only the conditions regarding their length and their elastic properties are met.
  • the pressure elements can in particular consist of bristles or thin rags, preferably made of plastic.
  • the required conditions can be optimally maintained through the choice of plastic material and the cross-section of the pressure elements.
  • the cross section of the pressure elements in the region of their free ends resting on the conveyor belt can be reduced so that their resistance to the sheets passing through is minimal.
  • the density with which the pressure elements are arranged on the body is determined so that a reliable pressure with the least possible resistance is achieved. A too tight arrangement increases the resistance.
  • the mutual distance of the pressure elements must be smaller than the linear dimensions of the sheet, preferably be significantly smaller than these dimensions, so that the sheet is reliably held against the conveyor belt over its entire surface.
  • the pressure elements can be arranged on the body in a uniform distribution. It is also possible to only occupy strips of the body running in the transport direction with pressure elements, the transverse spacing of these strips of course having to be smaller than the transverse dimensions of the sheet.
  • the pressure device according to the invention can be used with vertically and horizontally transporting conveyor belts.
  • the pressing device can hold the sheets lying on the upper run of the transport belt or from below on the lower run of the transport belt.
  • sheets 10 of a sheet-like recording medium are stored in a stack in a magazine 12 designed as a cassette.
  • the stack of sheets 10 is pressed in a manner known per se by means of a spring-loaded base against a pull-off roller 14, which occasionally pulls the sheets 10 off the stack.
  • an endlessly driven conveyor belt 18 is provided around the isolated sheets 10 of the processing station of an office machine 16, e.g. of a printer or a copier.
  • the conveyor belt 18 consists of a belt or a plurality of belts made of an adhesive plastic or rubber material running parallel and side by side.
  • the sheets 10 lying on the conveyor belt 18 are non-positively entrained by the adhesive property of the conveyor belt 18.
  • the magazine 12 is arranged under the office machine 16 and the sheets 10 are conveyed upward by the vertically running conveyor belt 18 to a feed nip of the office machine 16.
  • a pressure device with a flat body in the form of a plate 20 made of a light plastic is provided.
  • the Plate 20 is filled with pressure elements in the form of bristles 22 made of plastic.
  • the plate 20 has a width which corresponds to the width of the conveyor belt 18. In the direction of transport, the plate 20 extends over the entire length of the transport path of the sheets 10.
  • the plate 20 is fixedly attached parallel to the upward conveying strand of the conveyor belt 18, the plate 20 being a short distance of, for example, 3 to 10 mm from the Has conveyor belt 18.
  • the bristles 22 are inserted into the plate 20 or are preferably also molded onto the plate 20 from plastic.
  • the length of the bristles 22 is somewhat larger (for example 2-3 mm) than the distance of the plate 20 from the transporting strand of the conveyor belt 18. The ends of the bristles 22 accordingly lie against the conveyor belt 18.
  • the bristles 22 are kept so thin at least at their ends in cross section that they are soft-elastic in connection with the elastic properties of their material at least in the area adjacent to the conveyor belt 18 and are bent by the circulating conveyor belt 18 and with only slight pressure on the Conveyor belt 18 abut.
  • the plate 20 is evenly covered with bristles 22 over its entire surface facing the conveyor belt 18, the bristles being at a relatively large mutual distance, which is, however, small in relation to the length and width dimensions of the sheets 10.
  • the sheets 10, which are individually pulled out of the magazine 12 by the take-off roller 14, are pushed at the lower edge of the plate 20 between the latter and the conveying run of the conveyor belt 18 running upwards.
  • the bristles 22 of the plate 20 press the sheet 10 gently against the conveyor belt 18 so that it takes the sheet 10 non-positively.
  • the sheet 10 emerges at the upper edge of the plate 20 between the plate 20 and the conveyor belt 18 and is deflected into the feed nip of the office machine 16.
  • the length of the bristles 22 is greater than the distance of the plate 20 from the conveyor belt 18, the ends of the bristles 22 always abut the conveyor belt 18, even if the distance between the plate 20 and the conveyor belt 18 changes due to fluttering or bending of the conveyor belt 18 changes slightly.
  • the sheets 10 are therefore always reliably held against the conveyor belt 18 over their entire surface.
  • the soft elastic properties of the bristles 22 ensure that the bristles 22 do not exert any significant braking action on the conveyor belt 18.
  • the resistance that the bristles 22 offer to the transported sheet 10 is substantially lower than the frictional force between the sheet 10 and the conveyor belt 18 that carries the sheets 10.
  • the pressure elements can also have the shape of thin tabs which are formed on the plate 20 and protrude from the latter against the conveyor belt 18.
  • the width of the flaps extends transversely to the direction of transport.
  • the length of the tabs corresponds to the length of the bristles 22, the tabs being of a small thickness in the direction of transport and, in particular in their end region, having soft-elastic properties as described above for the bristles 22.
  • FIG. 1 A second embodiment of the transport device according to the invention is described in FIG.
  • magazines 12 are provided, each of which holds an upright stack of sheets 10.
  • a pull-off roller 14 is assigned to each magazine 12, the pull-off rollers 14 being selectively controllable in order to feed a sheet of a certain type from a selected magazine 12 to the office machine 16.
  • the conveyor belt 18 runs horizontally above the magazines 12 arranged one behind the other.
  • the conveyor belt 18 extends over all the magazines 12 up to the feed gap of the office machine 16.
  • the flat body of the pressing device is arranged between the upper edge of the magazines 12 and the lower conveying run of the conveyor belt 18 .
  • the flat body consists of a belt 24, which extends over the entire length of the lower conveying run of the conveyor belt 18.
  • the band 24 is arranged in a fixed and taut manner by means of clamping strips 26 attached to its edges.
  • the upper side of the belt 24 facing the conveyor belt 18 is covered with bristles 22 which, in the manner described above, rest against the conveying lower run of the conveyor belt 18 from below due to their flexible properties and their length and the distance of the belt 24 from the conveyor belt 18.
  • the belt 24 has a slot 28 above each magazine 12 which extends transversely to the transport direction extends across the width of the magazine 12.
  • the take-off roller 14 of the respectively selected magazine 12 If the take-off roller 14 of the respectively selected magazine 12 is activated, it pushes the top sheet 10 of the stack upwards out of this magazine.
  • the sheet 10 passes through the slot 28 of the belt 24 arranged above this magazine 12 and passes between the lower conveying strand of the conveyor belt 18 and the bristles 22 arranged on the belt 24.
  • the bristles 22 of the belt 24 make the sheet 10 from below pressed against the conveyor belt 18 and frictionally carried by it in order to be delivered to the office machine 16 at the end of the conveyor belt 18.
  • the bristles 22 hold the sheet 10 in contact with the conveyor belt 18 over its entire surface in order to ensure reliable adhesion between the sheet 10 and the conveyor belt 18.
  • the dimension of the slots 28 in the transport direction is substantially less than the length of the sheets 10, so that the sheets 10 are reliably supported even when crossing the slots 28 of subsequent magazines 12. If necessary, an inlet bevel can be formed on the edge of the slots 28 lying in the conveying direction, which promotes the penetration of the sheets 10 fed from below from the magazine 12 between the belt 24 and the conveyor belt 18. Such an inclined slope also guarantees that the leading edge of the sheet 10 is not deflected downward out of the slot 28 when crossing the slots 28 following in the transport direction.
  • the length of the bristles 22 in particular also ensures the compensation of differences in distance between the band 24 and the lower run of the Conveyor belt 18 due to some sagging of the belt 24.
  • FIG. 1 A third embodiment is shown in FIG. 1
  • a plurality of magazines 12 designed as paper chutes, each with take-off rollers 14, are arranged one behind the other over the horizontally running conveyor belt 18.
  • the sheets 10 drawn off by the take-off rollers 14 from a respectively selected magazine 12 reach the conveying upper run of the conveyor belt 18 and are transported by the latter to the office machine 16.
  • this flat body of the pressing device is arranged at a distance above the upper run of the conveyor belt 18.
  • this flat body consists of a rigid plate 20 which is covered with bristles 22 on its underside, as is described with reference to the exemplary embodiment in FIG.
  • the plate 20 has a slot 28 assigned to each magazine, as is shown in connection with the exemplary embodiment of FIG Figure 2 is described.
  • FIG. 1 A fourth embodiment is shown in FIG. 1
  • This embodiment corresponds to the embodiment of FIG. 2 insofar as several magazines 12 with upright standing stack of sheets 10 are arranged under the horizontally rotating conveyor belt 18.
  • This take-off roller 14 is arranged on a transfer unit 30, which overlaps the conveyor belt 18 in the form of a bridge and can be moved on guide rails 32 along the conveyor belt 18 above the magazines 12.
  • the transfer unit 30 is moved in a controlled manner over the respectively selected magazine 12, whereupon the take-off roller 14 is pivoted downward against the stack of sheets 10 of this magazine 12 into the position shown in FIG. 5, around the uppermost sheet 10 of the stack from the magazine 12 deduct.
  • the flat body of the pressing device consists of a flexible belt 34, which is covered with bristles 22 in the manner described above on its surface facing the lower transporting strand of the transport belt 18.
  • One end of the belt 34 is attached to the transfer unit 30.
  • the belt 34 runs parallel to the lower run of the conveyor belt 18 and is guided downwards at its end via a deflection roller 36, where it is wound onto a drum 38 under spring tension.
  • the transfer unit 30 pulls the band 34 off the drum 38 against the spring load. If, on the other hand, the transfer unit 30 is moved to the right, the excess length of the belt 34 is wound onto the drum 38.
  • the spring tension of the drum 38 ensures that the belt 34 is always kept taut and is tensioned between the transfer unit 30 and the deflection roller 36 parallel to the conveying lower run of the conveyor belt 18 at the predetermined distance therefrom.
  • the sheet 10 pulled by the transfer unit 30 from the respectively selected magazine 12 passes between the end of the belt 34 and the lower run of the conveyor belt 18 and is held by the belt 34 over the entire transport path until the sheet 10 is delivered to the conveyor belt 18 .
  • no slots 28 are required in the band 34 even with a plurality of magazines 12.
  • FIG. 1 A fifth embodiment is shown in FIG.
  • the transport device is used in connection with a sorter.
  • the sheets 10 coming from an office machine, for example a printer or a copier, are guided at the top between the downward conveying run of the vertically rotating endless conveyor belt 18 and the flat body of the pressing device.
  • the conveyor belt 18 runs in front of storage compartments 40 arranged vertically one above the other.
  • Each storage compartment 40 is assigned a switch 42 which can be pivoted out of the conveying path of the sheets 10 behind the downward run of the conveyor belt 18. Controlled, the switches 42 can be pivoted into an operating position in which they reach between the belts of the conveyor belt 18 into the path of movement of the sheets 10 in order to deflect them into the associated storage compartment 40. This position is shown in Figure 6 for the middle switch 42.
  • the flat body of the pressure device consists of a firmly clamped belt 24, which is covered with bristles 22 on the side facing the conveyor belt 18, as described in connection with the exemplary embodiment in FIGS. 2 and 3.
  • the belt 24 has in front of each storage compartment 40 a slot 28 running transversely to the transport direction, through which the sheets 10 deflected by the switch 42 pass and can be directed into the associated storage compartment 40.
  • the pressure device according to the invention can be used with vertically and horizontally rotating conveyor belts, the conveying strand being the upward or downward strand of the vertical conveyor belt and also the upper or lower strand of the horizontally rotating conveyor belt can be.
  • the pressure device can be used in all cases for feeding sheets from one or more magazines and for storing sheets in one or more storage compartments.
  • the pressure device can be used in all other sheet transport operations by means of circulating conveyor belts.
  • the form in which the flat body of the pressure device and the pressure elements are designed is determined by the special requirements of the application.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
EP19910116004 1990-10-19 1991-09-20 Device for handling sheets in business machines Withdrawn EP0484663A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4033237A DE4033237A1 (de) 1990-10-19 1990-10-19 Vorrichtung zum transportieren von bogen in bueromaschinen
DE4033237 1990-10-19

Publications (2)

Publication Number Publication Date
EP0484663A2 true EP0484663A2 (fr) 1992-05-13
EP0484663A3 EP0484663A3 (en) 1993-02-24

Family

ID=6416632

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910116004 Withdrawn EP0484663A3 (en) 1990-10-19 1991-09-20 Device for handling sheets in business machines

Country Status (4)

Country Link
US (1) US5192066A (fr)
EP (1) EP0484663A3 (fr)
JP (1) JPH04246041A (fr)
DE (1) DE4033237A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2072268A3 (fr) * 2007-12-17 2010-09-29 Francotyp-Postalia GmbH Dispositif d'application d'une pression sur des marchandises plates sur un module de transport

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JP3148948B2 (ja) * 1992-07-03 2001-03-26 コニカ株式会社 ソータ
US5415386A (en) * 1994-05-20 1995-05-16 Pitney Bowes Inc. Vertical feeding system for inserter
US5803227A (en) * 1995-06-06 1998-09-08 International Game Technology Bill stacker
DE19811166C2 (de) * 1998-03-14 2002-11-14 Ltg Holding Gmbh Vorrichtung zum Vereinzeln flächiger Güter
DE19921271A1 (de) * 1998-06-03 1999-12-09 Heidelberger Druckmasch Ag Verfahren zum Fördern von Bogen in einer Druckmaschine sowie eine Vorrichtung zur Durchführung des Verfahrens
GB2342091B (en) * 1998-09-30 2002-10-23 Xerox Corp Sheet feed assembly
US6454476B1 (en) 1999-04-14 2002-09-24 Hewlett-Packard Company Apparatus and method for picking and feeding print media sheets
US7014187B2 (en) * 2003-06-12 2006-03-21 Lockheed Martin Corporation Vacuum plenum system for facilitating the high-speed conveyance of mail pieces
DE10331018B4 (de) 2003-07-09 2006-04-27 Wincor Nixdorf International Gmbh Vorrichtung zum selektiven stapelförmigen Ablegen von Blättern
CN119605421B (zh) * 2024-12-20 2025-11-11 农业农村部南京农业机械化研究所 一种毯苗移栽机辅助送秧机构

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2072268A3 (fr) * 2007-12-17 2010-09-29 Francotyp-Postalia GmbH Dispositif d'application d'une pression sur des marchandises plates sur un module de transport
US8136813B2 (en) 2007-12-17 2012-03-20 Francotype-Postalia Gmbh Apparatus for pressing flat materials onto a transport module

Also Published As

Publication number Publication date
EP0484663A3 (en) 1993-02-24
DE4033237A1 (de) 1992-04-23
US5192066A (en) 1993-03-09
JPH04246041A (ja) 1992-09-02

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