US3335859A - Machine for sorting paper stacks - Google Patents

Machine for sorting paper stacks Download PDF

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Publication number
US3335859A
US3335859A US488982A US48898265A US3335859A US 3335859 A US3335859 A US 3335859A US 488982 A US488982 A US 488982A US 48898265 A US48898265 A US 48898265A US 3335859 A US3335859 A US 3335859A
Authority
US
United States
Prior art keywords
sheets
stack
sheet
machine
lifting devices
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
US488982A
Other languages
English (en)
Inventor
Borchert Gerhard Erich
Drager Erwin
Born Horst Walter Herbert
Mewes Helmut
Pingel Alfred Walter Otto
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.)
Bundesdruckerei GmbH
Original Assignee
Bundesdruckerei 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 Bundesdruckerei GmbH filed Critical Bundesdruckerei GmbH
Application granted granted Critical
Publication of US3335859A publication Critical patent/US3335859A/en
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
    • B65H3/00—Separating articles from piles
    • B65H3/40—Separating articles from piles by two or more separators acting alternately on the same pile
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/26—Holders for containing light sensitive material and adapted to be inserted within the camera
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S209/00—Classifying, separating, and assorting solids
    • Y10S209/922—Miscellaneous feed conveyors

Definitions

  • the invention relates to a machine for sorting paper stacks, normally alternatively, but in exceptional cases also for irregularly stacked printed and interleaving sheets of the same sizes.
  • the present invention has the object of rendering devices of known construction, such as so-called feeders, suitable for sorting sheets.
  • this object may be realized in that the pneumatic lifting devices are associated with light sources and photoelectric cells which control the operation of the sheet lifting devices as a function of the differential brightness values of the sheet surfaces.
  • the proper operation of the device according to the invention is guaranteed only if the stack or the topmost sheet at the time and the brightness value of which is to be detected by the photoelectric cells, are always moved into the same distance from these photoelectric cells.
  • FIG. 1 is a side elevation of the paper stack sorting machine according to the invention
  • FIG. 2 is a top view of the machine of FIG. 1.
  • the paper stack sorting machine consists substantially of two identical feeder attachments which are so connected to one unit that their forwarding sides are oppositely directed.
  • a stack elevator is provided in the centre of the machine.
  • the paper stack to be sorted is shown at 1 and is fitted into the centre of the machine by means of a lateral stack feeder, not shown, and is lifted by means of the stack elevator 2, 3 until the topmost sheet is adjacent to the pneumatic lifting devices 4 and 5.
  • the surface of the sheet is scanned by photoelectric cells 6 and 7 and the suction air of one of the lifting devices is controlled according to whether the topmost sheet is a printed or interleaving sheet.
  • the mechanically alternating control of the devices would not be satisfactory since, with frequent use of the interleaving sheets, several of these are frequently deposited by the printing press between the printed sheets at the same time.
  • the stack 1, comprising about 1000 printed and interleaving sheets each is not flat, owing to the fact that the paper is stretched during photogravure printing and the gripper edge has not been stretched.
  • the stack sorting machine is equipped with a stack elevator, consisting of two independently operated chain elevators 2 and 3, each driven by a motor. Each motor is controlled by a scanner 9 and 10, respectively, so that the level gaps between the stack edges and the suction rods can be accurately observed. This is important for the good functioning of the photoelectric cells because these can scan the surface accurately only within a limited height range in order to control the suction air.
  • a device as claimed in claim 1 characterized in that springs are provided on one side of one of the two lifting devices for retaining the sheet under the sheet to be detached and engaging through recesses in the sheet to be detached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US488982A 1964-09-21 1965-09-21 Machine for sorting paper stacks Expired - Lifetime US3335859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB78606A DE1209126B (de) 1964-09-21 1964-09-21 Papierstapelsortiermaschine

Publications (1)

Publication Number Publication Date
US3335859A true US3335859A (en) 1967-08-15

Family

ID=6979958

Family Applications (1)

Application Number Title Priority Date Filing Date
US488982A Expired - Lifetime US3335859A (en) 1964-09-21 1965-09-21 Machine for sorting paper stacks

Country Status (3)

Country Link
US (1) US3335859A (de)
DE (1) DE1209126B (de)
GB (1) GB1078707A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030155284A1 (en) * 2002-02-15 2003-08-21 Hanson Bruce H. Flat mail edge biasing machine and method of use
US20060170144A1 (en) * 2005-02-02 2006-08-03 Xerox Corporation System of opposing alternate higher speed sheet feeding from the same sheet stack
US20060214352A1 (en) * 2005-03-24 2006-09-28 Xerox Corporation Sheet feeding of faster rate printing systems with plural slower rate sheet feeders

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH651807A5 (fr) * 1983-03-31 1985-10-15 Bobst Sa Dispositif d'asservissement des organes delivrant des feuilles prises dans une pile a une machine les travaillant.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2626147A (en) * 1949-06-09 1953-01-20 Fed Carton Corp Jogging device for piled sheets
US3069013A (en) * 1960-05-18 1962-12-18 Gardner Lab Inc Photoelectric inspection system
US3146902A (en) * 1961-08-30 1964-09-01 Saxton V Voelker Envelope emptying and contents stacking machine
US3197647A (en) * 1961-04-20 1965-07-27 Gunsons Sortex Ltd Photosensitive apparatus for sorting translucent objects
US3294396A (en) * 1964-11-23 1966-12-27 Harris Intertype Corp Sheet feeding mechanism having a single control member for actuating a suction, air pressure, and pump means

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE51555C (de) * J. MlS-SONG in Höchst a. M Bogen-Anlegevorrichtung
DE1146507B (de) * 1961-08-23 1963-04-04 Mabeg Maschb G M B H Nachf Hen Stapelaufzug fuer pneumatische Bogenanleger

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2626147A (en) * 1949-06-09 1953-01-20 Fed Carton Corp Jogging device for piled sheets
US3069013A (en) * 1960-05-18 1962-12-18 Gardner Lab Inc Photoelectric inspection system
US3197647A (en) * 1961-04-20 1965-07-27 Gunsons Sortex Ltd Photosensitive apparatus for sorting translucent objects
US3146902A (en) * 1961-08-30 1964-09-01 Saxton V Voelker Envelope emptying and contents stacking machine
US3294396A (en) * 1964-11-23 1966-12-27 Harris Intertype Corp Sheet feeding mechanism having a single control member for actuating a suction, air pressure, and pump means

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030155284A1 (en) * 2002-02-15 2003-08-21 Hanson Bruce H. Flat mail edge biasing machine and method of use
US6926271B2 (en) * 2002-02-15 2005-08-09 Lockheed Martin Corporation Flat mail edge biasing machine and method of use
US20060170144A1 (en) * 2005-02-02 2006-08-03 Xerox Corporation System of opposing alternate higher speed sheet feeding from the same sheet stack
US7540484B2 (en) 2005-02-02 2009-06-02 Xerox Corporation System of opposing alternate higher speed sheet feeding from the same sheet stack
US20090236792A1 (en) * 2005-02-02 2009-09-24 Mandel Barry P System of opposing alternate higher speed sheet feeding from the same sheet stack
US7753367B2 (en) 2005-02-02 2010-07-13 Xerox Corporation System of opposing alternate higher speed sheet feeding from the same sheet stack
US20060214352A1 (en) * 2005-03-24 2006-09-28 Xerox Corporation Sheet feeding of faster rate printing systems with plural slower rate sheet feeders
US7934718B2 (en) 2005-03-24 2011-05-03 Xerox Corporation Sheet feeding of faster rate printing systems with plural slower rate sheet feeders

Also Published As

Publication number Publication date
GB1078707A (en) 1967-08-09
DE1209126B (de) 1966-01-20

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