EP0017227A1 - Dispositif pour le démariage des feuilles composant une pile - Google Patents

Dispositif pour le démariage des feuilles composant une pile Download PDF

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Publication number
EP0017227A1
EP0017227A1 EP80101775A EP80101775A EP0017227A1 EP 0017227 A1 EP0017227 A1 EP 0017227A1 EP 80101775 A EP80101775 A EP 80101775A EP 80101775 A EP80101775 A EP 80101775A EP 0017227 A1 EP0017227 A1 EP 0017227A1
Authority
EP
European Patent Office
Prior art keywords
rollers
stack
documents
roller
transport
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.)
Granted
Application number
EP80101775A
Other languages
German (de)
English (en)
Other versions
EP0017227B1 (fr
Inventor
Joachim W. Pixa
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.)
Joachim W Pixa Firma
Original Assignee
Joachim W Pixa Firma
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 Joachim W Pixa Firma filed Critical Joachim W Pixa Firma
Priority to AT80101775T priority Critical patent/ATE1774T1/de
Publication of EP0017227A1 publication Critical patent/EP0017227A1/fr
Application granted granted Critical
Publication of EP0017227B1 publication Critical patent/EP0017227B1/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
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/52—Friction retainers acting on under or rear side of article being separated
    • B65H3/5246—Driven retainers, i.e. the motion thereof being provided by a dedicated drive
    • 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
    • B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
    • B65H5/062—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between rollers or balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
    • B65H7/12—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to double feed or separation
    • B65H7/125—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to double feed or separation sensing the double feed or separation without contacting the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1912—Banknotes, bills and cheques or the like

Definitions

  • the invention relates to a device for separating documents forming a stack, in particular OCR documents, with at least two pulling rollers having a common axis of rotation, which are arranged for gripping a surface of the documents to be stacked adjacent to a support surface on which the stack is on an edge standing documents is to be arranged, and a preferably adjustable separating gap lying below the pull-off rollers with at least one transport roller driven in the conveying direction.
  • a separating device for punch card-shaped recording media in which a driven belt engages the cards and transports them through a resilient gap, however, formed from parts fixed in the direction of the card travel.
  • the belt is then transported around a drum.
  • This device is also unsuitable for documents of different thickness and rigidity and works discontinuously, i.e. too slow for many applications.
  • the object of the invention is to provide a device of the type mentioned at the outset, with which documents of the most varied types, thicknesses and stiffness can be stacked quickly, reliably and carefully, separated and transported away in a good orientation.
  • the documents are treated gently in the slip clutches take effect with greater resistance and do not rub on the surface of the receipts, and on the other hand an automatic alignment of a slip drawn off obliquely from the stack takes place in that when it enters the separating gap, the part of the slip arriving first there is retained with the slip clutches becoming effective while the rest of the part is being fed
  • the peripheral speed of the transport rollers is lower, preferably 5 to 15% lower than the peripheral speed of the pulling rollers.
  • the separating gap is preferably provided between the at least one transport roller and an opposing counter-roller, which can be driven with the circumferential direction opposite in the gap to the circumferential direction of the alignment and transport rollers. So this means that the counter-rotating roller has the same direction of rotation as the transport roller. It is preferably located on the side facing the stack, so that its counter-rotation prevents a second document pulled off the stack together with the first document from being drawn into the separating gap. Its peripheral speed is preferably substantially lower than the peripheral speed of the transport roller and it can be driven to be rotatable step by step, the advantageous amount of counter-rotation depending on the type of document and being adjustable.
  • a pre-fanning of the stack can be achieved by an inclination of the support surface and at the same time, a pressing part which is subjected to gravity can advantageously press the stack against the pull-off roller, a very uniform one Pressure is guaranteed.
  • the stacking device shown has a frame with two side walls 1, 2, between which a desk-like support surface 3 is arranged.
  • This support surface 3 drops forward in the direction of arrow a (transport direction) and merges at its front edge into a vertically extending wall 4 which forms the front wall of the device.
  • the two side parts 1, 2 have mutually aligned, oblique grooves 5, which run at a distance and parallel to the storage surface 3 and serve to guide two small rollers each, which are mounted on the two narrow sides of a pressure part 6, so that the pressure part 6 automatically slide in the direction of arrow a due to its preferably changeable dead weight and can shift a stack of documents 7 arranged in front of it, the individual documents of which are essentially vertically aligned, in this direction.
  • the pulling rollers 8 have e.g. a non-slip surface made of rubber and are each connected to the shaft 8 'via a slip clutch 9 which can be set individually for each pulling roller by means of a set screw provided with a scale, for example a friction clutch.
  • the pull-off rollers 8, the transport rollers 10 and the counter-rollers 11 are, as already mentioned, each driven counterclockwise. They are driven by an electric motor16 via belts that run over pulleys attached to the individual roller shafts. The diameter of these pulleys is selected so that the rotational speed of the transport rollers 10 is preferably 5 to 15% lower than the rotational speed of the pulling rollers 8.
  • the shaft 10 'of the transport rollers 10 carries at one end in addition to that already mentioned th pulley 17 is a cam or eccentric disc 1 8 , against the outside of which presses one end of a finger 20 under the pressure of a spring 19, the other end of which is connected via a freewheel to the shaft 11 'of the counter roller. If the shaft 10 'of the transport roller rotates, this causes the eccentric disc 18 to rotate in the same direction, and this in turn results in an up and down movement of the finger 20 which, because of the interposed freewheel, results in a corresponding stepwise rotation of the shaft 11' of the counter-rollers 11 causes.
  • the free ends of the shaft 11 'of the counter rollers are each mounted in a small bearing plate 21, which in turn is articulated eccentrically on one of the two side parts 1, 2.
  • the pivoting movement of these bearing plates 21 is limited on the one hand by a small compression spring 22 and on the other hand by a cam plate 23, which can be rotated by the servomotor 15 already mentioned, so that the bearing plates 21 are pivoted by actuating this servomotor 15 and thus the distance between the shaft 11 'of the counter rollers and the shaft 10' of the transport rollers and thus the width of the gap between the individual rollers 10 of the transport roller and the individual rollers 11 of the counter roller can be adjusted.
  • the control of the switching off of the servomotor takes place in dependence on fork light barriers, which allow a very precise adjustment of the gap width.
  • the gap width can be controlled, for example, by the operator using a manual switch that can be set to several standard thicknesses (checks as individual receipts, transfer forms with several sheets, etc.). However, it would also be possible to largely automate the setting, for example by automatically sensing the different width dimensions of check and transfer forms and then adjusting the gap width.
  • the front document of the stack 7 is conveyed downward along a substantially vertical transport path 31 into a separating gap 26 which is between rollers each consisting of spaced apart rollers, namely a counterclockwise driven roller 10 and a counter-rotating roller 11, which is also driven counterclockwise, is provided.
  • a separating gap 26 which is between rollers each consisting of spaced apart rollers, namely a counterclockwise driven roller 10 and a counter-rotating roller 11, which is also driven counterclockwise, is provided.
  • guide rollers 14 are provided, which ensure that the lower edges of the detached sheets, which are in the transport direction at the front in each case, safely reach the gap provided between the transport rollers 10 and counter-rollers 11.
  • the width of this gap can be adapted to the respective sheet thickness using the photoelectronically controlled servomotor 15 described.
  • a sheet 12 is slanted into Rich tion is promoted to the nip 26, it is somewhat slowed down by the somewhat slower transport rollers 10 because of the somewhat higher peripheral speed of the alignment rollers 8. If the sheet should first reach the roller gap with a corner due to its inclined position, it is braked somewhat in the area of this corner, while the side not yet in the roller gap is conveyed more quickly by the pulling rollers at a higher peripheral speed, so that the sheet automatically moves into the straight position turns. So that braking at the deepest corner can easily take place, the slip clutches 9 are provided, which limit the peripheral force to, for example, 1 N. The adjustability of the friction clutches enables adaptation to non-uniform documents, eg documents with a one-sided binding edge. The slip clutches 9 also ensure that the pulling rollers 8 do not rub on the document surface when the document is still stationary.
  • the alignment then takes place in each case with the document 13, which is prevented from penetrating into the gap by the document 19 located in the separating gap, but, as can be seen from FIG. 1, is already subjected to the action of the alignment rollers 8.
  • the counter-rotation significantly improves the effect that a simple gap would have without a rotatable counter-roller, especially with thin documents. It also contributes to the fact that the counter roller is made of a much harder rubber material than the rollers 8 and 10, which also has a lower coefficient of friction. In addition, the wear of the counter-rotating roller is evened out and kept to a minimum.
  • the second document 13 withdrawn from the counter-rotating roller is gripped by the transport rollers 10 and transported through the gap 26 after the first document has completely passed through the gap.
  • the support surface 3 and the wall 4 delimiting the vertical transport path 31 and possibly the side wall parts delimiting the feed path laterally consist of a pattern-rolled stainless steel plate known as ZAP sheet metal with particularly good sliding properties and a profiled surface which is grounded.
  • the surface profile consists of flat pyramids with a rhombic base and, of course, strongly rounded ridges.
  • An embodiment with a rhombus base area of 10 ⁇ 4 mm is preferred.
  • the rhombuses are aligned in the transport direction a. It has been shown that these measures did not only largely free the documents when they were separated from static charges, but that documents already loaded in a statically charged state could also be processed without sticking to one another. This may be partly due to the fact that the profiling largely supports an air cushion and is hardly exposed to friction, and it has also been shown that the material used has no static-promoting properties.
  • a fork light barrier 35 is provided in the area of the side part 1 to which the documents are normally placed. It is an integrated component with a light-emitting and a light-receiving diode, between which (through the "fork") the documents pass. It is connected to an electronic control unit 36, which is connected to a main control unit 37 with a keyboard, from which the stacking device is started. It can be, for example, the operating device of a constant encoder on which the operator enters the type of document and which then automatically retrieves the documents in the desired sequence. The gap width setting can also be controlled manually or automatically from there according to the type of document. Accordingly the main control device 37 controls the motor 16 and the servomotor 15.
  • the photo sensor which is preferably designed as a forked light barrier 35, has a double function: it uses transmitted light methods to determine whether the document has been properly separated because two documents lying one above the other have less transparency. Because of the arrangement in the normally unprinted edge area, a print that disturbs the transparency plays no role.
  • control unit determines whether two documents have been conveyed overlapping one another through the gap by recording the beginning and end of each continuous "darkening". Both control methods can be carried out with the same light barrier and simultaneously or e.g. can also be used individually for very thick, non-transparent documents.
  • the signal processing in the control unit takes place by means of microprocessors.
  • the motor 16 is switched off immediately, so that the document still remains within the gap 26 and damage or a jam is prevented. It can then be removed and e.g. future double funding can be prevented by adjusting the gap width.
  • the device can, for example, process stacks of credit card size and A4 size without conversion. Furthermore, the device enables a very large range of paper thicknesses. Here everything can be processed between airmail thickness and strong cardboard in the order of 1 mm thickness after appropriate setting of the gap.
  • a spring-loaded pressing part can also be provided, which pushes the sheet stack in front of it, but which has the disadvantage of a changing pressing force.
  • the advantage of the sloping shelf has already been highlighted.
  • Continuous rolls could also be used instead of the individual rolls 10 and 11.
  • a slight backward inclination of the sheets on the feed path 25 can also be provided. Accordingly, the transport path (connecting line between the periphery of the alignment rollers 8 and the separating gap) is then also slightly inclined.
  • the device also makes it possible to generate an extraordinarily dense sequence of sheets, ie the individual sheets or groups of sheets can follow one another almost without gaps. It is also less prone to malfunction and can be stopped in the middle of operation. This is particularly advantageous if the stacker is used as the entry station of a processing machine for documents, etc.
  • the motor 16 can simply be stopped in response to the processing machine or a clutch can be triggered if the processing machine does not keep pace with the stacking. When the motor is restarted, the stacking continues without any problems that a stall occurs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Pile Receivers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
EP80101775A 1979-04-07 1980-04-08 Dispositif pour le démariage des feuilles composant une pile Expired EP0017227B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80101775T ATE1774T1 (de) 1979-04-07 1980-04-08 Vorrichtung zum vereinzeln von einen stapel bildenden belegen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2914097 1979-04-07
DE19792914097 DE2914097A1 (de) 1979-04-07 1979-04-07 Vorrichtung zum vereinzeln von einen stapel bildenden blaettern bzw. blattgruppen

Publications (2)

Publication Number Publication Date
EP0017227A1 true EP0017227A1 (fr) 1980-10-15
EP0017227B1 EP0017227B1 (fr) 1982-11-10

Family

ID=6067737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80101775A Expired EP0017227B1 (fr) 1979-04-07 1980-04-08 Dispositif pour le démariage des feuilles composant une pile

Country Status (3)

Country Link
EP (1) EP0017227B1 (fr)
AT (1) ATE1774T1 (fr)
DE (2) DE2914097A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998004484A1 (fr) * 1996-07-25 1998-02-05 Siemens Nixdorf Informationssysteme Ag Dispositif de separation a interstice de separation reglable
EP1103500A2 (fr) * 1999-11-26 2001-05-30 Pfankuch Maschinen GmbH Dispositif d'alimentation par friction de découpes en papier, carton ou similaire
EP1361548A2 (fr) * 1998-01-23 2003-11-12 BEB Industrie-Elektronik AG Dispositif d'entrée
US9394122B2 (en) 2013-06-21 2016-07-19 Böwe Systec Gmbh Feeder for flat objects, particularly supplement feeder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4440993A1 (de) * 1994-11-17 1996-06-05 Michael Balk Vorrichtung und Verfahren zur Vereinzelung von in einem Stapel vorliegender Karten
DE102007016589A1 (de) 2007-04-05 2008-10-09 Böwe Systec AG Verfahren und Steuerungsschaltung zum Einstellen eines Spalts

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2626148A (en) * 1950-03-03 1953-01-20 Bell & Howell Co Automatic sheet feeding mechanism
US3937455A (en) * 1974-04-01 1976-02-10 Telautograph Corporation Automatic stack feed

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2626148A (en) * 1950-03-03 1953-01-20 Bell & Howell Co Automatic sheet feeding mechanism
US3937455A (en) * 1974-04-01 1976-02-10 Telautograph Corporation Automatic stack feed

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998004484A1 (fr) * 1996-07-25 1998-02-05 Siemens Nixdorf Informationssysteme Ag Dispositif de separation a interstice de separation reglable
EP1361548A2 (fr) * 1998-01-23 2003-11-12 BEB Industrie-Elektronik AG Dispositif d'entrée
EP1361548A3 (fr) * 1998-01-23 2005-05-11 BEB Industrie-Elektronik AG Dispositif d'entrée
EP1103500A2 (fr) * 1999-11-26 2001-05-30 Pfankuch Maschinen GmbH Dispositif d'alimentation par friction de découpes en papier, carton ou similaire
EP1103500A3 (fr) * 1999-11-26 2003-02-26 Pfankuch Maschinen GmbH Dispositif d'alimentation par friction de découpes en papier, carton ou similaire
US9394122B2 (en) 2013-06-21 2016-07-19 Böwe Systec Gmbh Feeder for flat objects, particularly supplement feeder

Also Published As

Publication number Publication date
DE3061054D1 (en) 1982-12-16
EP0017227B1 (fr) 1982-11-10
DE2914097A1 (de) 1980-10-16
ATE1774T1 (de) 1982-11-15

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