EP0083025A1 - Blattvereinzelungseinrichtung - Google Patents

Blattvereinzelungseinrichtung Download PDF

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Publication number
EP0083025A1
EP0083025A1 EP82111613A EP82111613A EP0083025A1 EP 0083025 A1 EP0083025 A1 EP 0083025A1 EP 82111613 A EP82111613 A EP 82111613A EP 82111613 A EP82111613 A EP 82111613A EP 0083025 A1 EP0083025 A1 EP 0083025A1
Authority
EP
European Patent Office
Prior art keywords
stack
friction roller
front stop
separating device
sheet
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Withdrawn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
EP82111613A
Other languages
German (de)
English (en)
French (fr)
Inventor
Franz Fruth
Hans Krenn
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of EP0083025A1 publication Critical patent/EP0083025A1/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Withdrawn legal-status Critical Current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
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/08—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device
    • B65H1/18—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device controlled by height of 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
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/0615—Rollers or like rotary separators reciprocating and rotatable in one direction only

Definitions

  • the invention relates to a sheet separating device in which the top sheet of the stack is pulled out from under a front stop by means of a friction element, bulged at its rear edge and then pushed over the front stop in the forward transport direction and fed to a transport device.
  • the stack front stop lies on the stack under the effect of its own weight supported by a spring.
  • the correct removal level of the stack is maintained by pressing the rear edge of the stack against a fixed stop.
  • the second separation step namely the bulging of the sheet pushed against a rear stacking stop, is severely hampered and is practically only possible for cards or sheets made of thicker paper or cardboard.
  • the stacking surface is completely exposed except for the front flange which presses on it with constant, relatively light force.
  • the separation by the bulking process is not hindered, which has the advantages of this separation method, which lie in the fact that the forces causing the separation of the sheets from one another are generated exclusively by the bulged sheet itself and therefore the thickness or rigidity of the sheet to be separated from the stack are always proportional, can have a full impact. It is therefore possible to separate sheets of very different thicknesses or stiffness from one another without having to change the separating device. Such changes are e.g. required for the frequently used separating devices with front stacking stops, as e.g. can be seen from DE-PS 11 06 774. In these arrangements, the separation reliability depends on the fact that the front corner separating elements, which are generally movably mounted in the vertical direction, are loaded to different extents for the separation of sheets of different stiffness.
  • a very decisive improvement in the separation security of the separating arrangement according to the invention can also be achieved in that the pivoting lever carrying the friction roller forms an acute angle with the forward transport direction of the friction roller. As a result, the pressure of the friction roller automatically adapts to the rigidity of the sheet to be separated.
  • a frame 2 is arranged in a device frame 1, which is closed at the bottom by a bottom 3.
  • the frame 2 forms the stack limitation for a stack 5 resting on a rising table 4.
  • Four threaded spindles 6 are fastened to the rising table 4 and are screwed through four screw bushings 7 mounted on the bottom 3.
  • a further gearwheel 10 is fastened to one of the screw bushings 7 and is connected by means of a drive chain 11 to a gearwheel 12 which sits on the shaft of a drive motor 13.
  • the drive motor 13 is designed as a tandem motor with three feed lines 14-16.
  • the feed line of the drive motor 13 is guided to a network conductor 18 via a switch 17.
  • the center conductor 15 of the tandem motor 13 is connected to a further network conductor 19.
  • the return line 16 is also connected to the first network conductor 18 via a further switch 20 '.
  • the switch 17 is actuated by means of the arm 21a of a front stop 21 pivotally mounted on a fixed axis 22, the other arm 21b of which rests under the action of a leaf spring 23 also engaging the arm 21a of the stacking surface.
  • the arm 21b of the front stop 21 resting on the stack is shaped into a tip, whereby on the one hand its point of contact on the stack is independent of its pivoting position and on the other hand a sheet pushed against it can easily slide with its edge over the stop.
  • the surface of the stack also bears a friction roller 26 mounted on its axis 25 on a pivot lever 24.
  • the pivot lever 24 is in turn articulated on the axis 27 of a push rod 28 which, in a known manner, e.g. can be set in a reciprocating movement in the direction of arrow A-B by means of a crank drive.
  • a ratchet wheel 29 is fastened to the friction roller 26, a ratchet hook 30 engages in the toothing thereof, which ratchet 30 is mounted on the pivoting lever 24 and bears against the ratchet wheel 29 under the action of a leg spring 30a.
  • the locking hook 30 prevents the friction roller 26 from rotating in the forward direction A, so that when the friction roller axis 25 is moved in this direction, the top sheet of the stack is carried in this direction.
  • a magnet 31 is also attached to the pivot lever 24, the armature 32 of which carries a bracket 32a.
  • this bracket 32a lies against the circumference of the friction roller 26 and thereby also blocks it in the other direction of rotation. This means that when the magnet 31 is actuated, the top sheet of the stack is also taken in the return direction B of the friction roller 26.
  • continuously rotating conveyor rollers 36 and 37 are arranged at the front end of the stack 5, which convey the individualized sheet in the direction of arrow C to a guide track 38, 39.
  • the ends of the axis 25 of the friction roller 26 mounted on the swivel lever 24 are finally guided on a mechanical switch attached to the device frame 1.
  • This mechanical switch is formed by a cam carrier 40 fastened to a device board 44 by means of rivets 42 and 43 and a pivot piece 41 movably mounted on the cam carrier 40 on an axis 42.
  • a support surface 40a for the friction roller axis 25 is formed on the cam carrier 40.
  • the pivot piece 41 carries a support surface 41a. Under the effect of its own weight, it rests against the head of the rivet 43 forming a stop for the swivel piece 41.
  • the friction roller 26 is moved in the direction of arrow A until the front edge of the puffed sheet has moved over the front stop 21b and can be gripped by the continuously rotating transport rollers 36, 37 for further transport.
  • the friction roller axis 25 in the direction of arrow A, it runs under the support curve 41a and thereby pivots the pivoting piece 41, which bears against the stop 43 under the influence of its own weight, in the direction of arrow D. That is, the axis 25 of the friction roller 26 is not raised during this movement and the friction roller 26 remains on the stack.
  • the direction of movement of the push rod 28 now rotates and the axis 25 of the friction roller 26 moves in the direction of arrow B.
  • the friction roller 26, which is not locked in this direction rolls over the stack surface with little resistance, its axis 25 after a short time in the direction shown in FIG shown on the curve 41a of the pivot piece 41, which has now returned to its starting position at the stop 43.
  • the friction roller 26 is lifted off the stack, so that it can no longer exert any forces on it.
  • the axis g5 slides over the support curve 40a and only descends again onto the stack in the position in which the friction roller 26 is to begin to puff up the top sheet of the stack.
  • the tandem motor 13 is switched on in the forward direction and the stack 5 is raised until the arm 21a of the front stop 21 has released the switch 17 again. To fill the stack, it is moved so far down by actuating the switch 20 that a new stack 5 can be placed on the riser table 4 and pushed under the front stop 21b.
EP82111613A 1981-12-23 1982-12-14 Blattvereinzelungseinrichtung Withdrawn EP0083025A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813151004 DE3151004A1 (de) 1981-12-23 1981-12-23 Blattvereinzelungseinrichtung
DE3151004 1981-12-23

Publications (1)

Publication Number Publication Date
EP0083025A1 true EP0083025A1 (de) 1983-07-06

Family

ID=6149514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82111613A Withdrawn EP0083025A1 (de) 1981-12-23 1982-12-14 Blattvereinzelungseinrichtung

Country Status (3)

Country Link
EP (1) EP0083025A1 (ja)
JP (1) JPS58113049A (ja)
DE (1) DE3151004A1 (ja)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986007339A1 (en) * 1985-06-06 1986-12-18 W. Rast Pty. Ltd. Coin operated paper vending machine
US5195736A (en) * 1990-09-19 1993-03-23 Oki Electric Industry Co., Ltd. Method and apparatus for feeding sheets
FR2726815A1 (fr) * 1994-11-10 1996-05-15 Borreca Pascal Perfectionnement aux distributeurs de feuilles souples ou analogues
EP0753414A2 (en) * 1995-07-10 1997-01-15 Canon Kabushiki Kaisha Sheet supplying apparatus
EP0842880A2 (en) * 1996-11-18 1998-05-20 Canon Kabushiki Kaisha Image forming apparatus
WO2008006138A1 (en) * 2006-07-10 2008-01-17 Silverbrook Research Pty Ltd Sheet feed mechanism
CN103159050A (zh) * 2011-12-15 2013-06-19 柯尼卡美能达商用科技株式会社 图像形成装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE218990C (ja) *
DE481409C (de) * 1927-04-07 1929-08-20 Rotaprint Gmbh Papieranlegevorrichtung, insbesondere fuer Bureaugummidruckmaschinen
DE2244249A1 (de) * 1971-12-08 1973-06-28 Xerox Corp Verfahren zum aufeinanderfolgenden foerdern von getrennten blaettern von einem stapel und blattzufuehrvorrichtung zur durchfuehrung dieses verfahrens
DE2654108A1 (de) * 1975-12-05 1977-06-16 Transac Dev Transact Automat Vorrichtung zur einzelausgabe von gestapelten blaettern, insbesondere von banknoten
DE2840624A1 (de) * 1977-09-26 1979-04-05 Transac Dev Transact Automat Niveauregler fuer den stapeltisch einer einzelblattausgabevorrichtung
DE2851458A1 (de) * 1978-11-28 1980-06-04 Agfa Gevaert Ag Vereinzelungsvorrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4938711A (ja) * 1972-08-18 1974-04-11

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE218990C (ja) *
DE481409C (de) * 1927-04-07 1929-08-20 Rotaprint Gmbh Papieranlegevorrichtung, insbesondere fuer Bureaugummidruckmaschinen
DE2244249A1 (de) * 1971-12-08 1973-06-28 Xerox Corp Verfahren zum aufeinanderfolgenden foerdern von getrennten blaettern von einem stapel und blattzufuehrvorrichtung zur durchfuehrung dieses verfahrens
DE2654108A1 (de) * 1975-12-05 1977-06-16 Transac Dev Transact Automat Vorrichtung zur einzelausgabe von gestapelten blaettern, insbesondere von banknoten
DE2840624A1 (de) * 1977-09-26 1979-04-05 Transac Dev Transact Automat Niveauregler fuer den stapeltisch einer einzelblattausgabevorrichtung
DE2851458A1 (de) * 1978-11-28 1980-06-04 Agfa Gevaert Ag Vereinzelungsvorrichtung

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986007339A1 (en) * 1985-06-06 1986-12-18 W. Rast Pty. Ltd. Coin operated paper vending machine
GB2186556A (en) * 1985-06-06 1987-08-19 Rast Pty Ltd W Coin operated paper vending machine
GB2186556B (en) * 1985-06-06 1989-07-19 Rast Pty Ltd W Coin operated paper vending machine
US5195736A (en) * 1990-09-19 1993-03-23 Oki Electric Industry Co., Ltd. Method and apparatus for feeding sheets
FR2726815A1 (fr) * 1994-11-10 1996-05-15 Borreca Pascal Perfectionnement aux distributeurs de feuilles souples ou analogues
EP0753414A2 (en) * 1995-07-10 1997-01-15 Canon Kabushiki Kaisha Sheet supplying apparatus
US6328301B1 (en) 1995-07-10 2001-12-11 Canon Kabushiki Kaisha Sheet supplying apparatus
EP0753414A3 (en) * 1995-07-10 1998-09-16 Canon Kabushiki Kaisha Sheet supplying apparatus
EP0842880A3 (en) * 1996-11-18 1999-01-27 Canon Kabushiki Kaisha Image forming apparatus
US6131898A (en) * 1996-11-18 2000-10-17 Canon Kabushiki Kaisha Image forming apparatus
EP0842880A2 (en) * 1996-11-18 1998-05-20 Canon Kabushiki Kaisha Image forming apparatus
WO2008006138A1 (en) * 2006-07-10 2008-01-17 Silverbrook Research Pty Ltd Sheet feed mechanism
US7726647B2 (en) 2006-07-10 2010-06-01 Silverbrook Research Pty Ltd Sheet feed mechanism
US8118300B2 (en) 2006-07-10 2012-02-21 Silverbrook Research Pty Ltd Sheet feed mechanism
CN103159050A (zh) * 2011-12-15 2013-06-19 柯尼卡美能达商用科技株式会社 图像形成装置
CN103159050B (zh) * 2011-12-15 2016-03-30 柯尼卡美能达商用科技株式会社 图像形成装置

Also Published As

Publication number Publication date
JPS58113049A (ja) 1983-07-05
DE3151004A1 (de) 1983-08-04

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): FR GB IT

17P Request for examination filed

Effective date: 19830727

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850525

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FRUTH, FRANZ

Inventor name: KRENN, HANS