US3565423A - Apparatus for conveying and depositing overlapped sheets of paper and the like - Google Patents

Apparatus for conveying and depositing overlapped sheets of paper and the like Download PDF

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Publication number
US3565423A
US3565423A US782256A US3565423DA US3565423A US 3565423 A US3565423 A US 3565423A US 782256 A US782256 A US 782256A US 3565423D A US3565423D A US 3565423DA US 3565423 A US3565423 A US 3565423A
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US
United States
Prior art keywords
conveyor belt
shaft
sheets
differential gear
slower
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
US782256A
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English (en)
Inventor
Engelbert Kluth
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.)
Jagenberg Werke AG
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Jagenberg Werke AG
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Filing date
Publication date
Priority claimed from DE19671561722 external-priority patent/DE1561722B2/de
Application filed by Jagenberg Werke AG filed Critical Jagenberg Werke AG
Application granted granted Critical
Publication of US3565423A publication Critical patent/US3565423A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B65H29/58—Article switches or diverters
    • B65H29/60—Article switches or diverters diverting the stream into alternative paths
    • 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
    • B65H29/66—Advancing articles in overlapping streams
    • B65H29/6609—Advancing articles in overlapping streams forming an overlapping stream
    • B65H29/6618—Advancing articles in overlapping streams forming an overlapping stream upon transfer from a first conveyor to a second conveyor advancing at slower speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4212—Forming a pile of articles substantially horizontal

Definitions

  • ABSTRACT Apparatus for conveying sheets emanating from transverse cutters or other sheet-e ecting machmes in a flow line of successive end to end sheets in which the sheets are overlapped by upper and lower conveyor belt means with conveyor belt drive means being operative to move one conveyor l t t b t ATUS FOR CONVEYmG AND DEPOSITING be t means slower han he other conveyor el means so that KE each successive sheet 15 overlapped with the lmmedlately OVERLAPPED S E OF PAPER AND THE L] preceding sheet, the slower moving conveyor belt being 4 Claims 4 Drawmg stopped in response to the absence of at least one sheet in the [52] US.
  • the drive means for the slower 271/64 conveyor belt means including a differential gear means in- [51] Int. Cl. B65h 29/18 eluding an input drive shaft and two driven shafts and means [50] Field of Search 271 /77, 76, are operatively associated with said differential gear means for alternatively stopping and releasing both driven shafts.
  • the slower-running conveyor belts be stopped j for a short interval during removal of a defective sheet so as to avoid the development. of a-gap in the-overlapped sheet succession.
  • the conveyor belts were stopped by means of a'brake acting upon the slower-running conveyor belts and a coupling devi'cewhich was connected with the drive for the conveyor .belts..lt became apparent,
  • the object of the present invention is to provide for a .control means for the slower running conveyor belts whose time for responding will be so short as to prevent the aforementioned drawbacks from appearing, and wherein said: control means meets the expected requirem'entsregarding functional safety by virtue of its simple construction at low expenditure.
  • the power train through the differential gear is transmitted while the idler shaft is stopped or held by the continuously running drive shaft via the released driven shaft forthe conveyor belts, whereas the power train with the conveyor belt driven shaft being stopped or held, is transmitted by the drive shaft to the released idler shaft.
  • the arrangement is furthermore constructed such that both of thedriven shafts of the differential gear are each provided with a band brake so arranged that-the pulling end portions of the brake bands can be actuated by a common cylinder piston unit.
  • FIG. 1 is a diagrammatic side view illustrating a transverse v cutter and sheet moving system embodying the present invention
  • FIG. 2 is a diagrammatic side view illustrating preferred embodiment of the conveyor belt drive
  • FIG. 2a is a top plan view of the arrangement shown in. FIG. 2, and
  • FIG. 3 is a diagrammatic view illustrating a further embodiment of the conveyor belt drive.
  • the paper web 2 emanating from feed or supply roll 1. is fed through a flaw detection device 3 and then led through advancing or feed rollers 4 to a transverse cutter device comprising a pair of rotary knives 5 which divides the paper web 2 into individual sheets 6.
  • the sheets 6 then reach the area of gate or diverter 8 via a feeder table 7.
  • This gate or diverter 8 is in theposition as shown in the drawing sothat the moving sheets 6 pass between the fast running conveyor belts or tapes 9, 10, 11.
  • a photoelectric cell 12 scanningthe succession of sheets is mounted in the area of these conveyor belts. As sheets 6 move along, they reach the overlapping station which is formed by the lower and slower moving conveyor belts or tapes 13 cooperating with the upper conveyor belts or tapes 11. Thereafter, the sheets 6 are deposited on stack-or layboy 14.
  • the drive for the slower moving conveyor belts 13 is effected through a differential gear means 15.
  • this differential gear means 15 is constructed and mounted in such'manner that, as a defective sheet is being removed resulting necessarily-in the development of a gap in the flow line of sheets, an impulse is initiated bythe photoelectric cell 12 to the drive for the slower moving conveyor belts vl3 so that these conveyorbelts' 13 can'be stopped for a brief interval.
  • the1activation-of gate.8 during the appearance of'a defectivegspot takes place by means of an impulse emanating fromthe flaw 'detectiondevice 3, said impulse being transmitted to a magnet l7 acting upon lever. 16 of gate 8.
  • the oscillating mqvementof gate 8 thereby causes the deflection of defective sheet onto defective stack 22'via conapparatus.
  • shaft 24 is constructed as an idler shaft, whereas shaft 25, drives roller26 around whichconveyor belts 13 are wound, FIG. 2a.
  • Brake discs 27 and 28 are securedto the extensions of the driven shafts 24 and 25 and have brake bands 29-and 30 associated therewith.
  • each of these brake bands 29 and 30 are each connected with a stationary point 21, whereas the other or pulling end portions of each brake band are connectedto the opposite ends of the piston of a double-acting cylinder piston unit 32 which is fed from a compressed air source, not shown, under control 0521 magnetically actuate valve 33.
  • Thevalve 33 is activated by means of an impulse initiated by photoelectric cell 12 scanning the succession of sheets.
  • FIG. 3 shows a modification of the conveyorlbelt drive in such fashion that thedriven shafts 24 and 25 which are provided with brake discs 27 and 28 are positioned opposite of each other.
  • brake discs 27 and '28 have associated with them brake shoes 34 and 35 which in conformity with the brake bands 29 and 30 of the abovedescribed embodiment alternatingly stop and release the driven shafts 24 and 25 of differential gear 15.
  • the method of operation and effects correspond to the drive of the conveyor belts as depicted in FIG. 2.
  • this invention provides a system for conveying and depositing sheets that emanate from a cross cutter which includes:
  • means for overlapping successive sheets including upper and lower conveyor belt means and means for driving the lower conveyor belt means at a slower speed to permit a successive sheet to overlap a preceeding sheet, and for delivering the sheets to another stack;
  • a differential drive gear including a continuously rotating input drive shaft and two driven shafts, one of said driven shafts driving said slower conveyor belt means and the other driven shaft constituting an idler shaft;
  • sensing means operatively associated with the means for moving the sheets in a flow line of successive sheets in advance of said slower moving conveyor belt means for detecting a gap in said flow line occasioned by the absence of at least one diverted sheet for indicating a command impulse responsive to such a gap
  • the photoelectric cell 12 and the magnetic valve 33 for actuating the cylinder piston unit 32 are commercially available electro-optical or hydraulic units respectively.
  • the differential gear 15 also represents, as can be recognized in FIG. 2a and 3, a known design which, in its basic form and in its mode of operation is for example used in motor vehicle construction.
  • apparatus for conveying sheets emanating from a transverse cutter or other sheet ejecting machines means for receiving and moving ejected sheets in a flow line of successive end-to-end sheets, means for overlapping moving sheets including upper and lower conveyor belt means, drive means for said conveyor belt means including means operative to move one conveyor belt means slower than the other conveyor belt means so that each successive sheet is overlapped with the immediately preceding sheet, means for stopping said slower moving conveyor belt means in response to the absence of at least one sheet in the flow-line of successive sheets, and the drive means for said slower conveyor belt means including a differential gear means including an input drive shaft and two driven shafts and means operatively associated with said differential gear means for alternatively stopping and releasing both driven shafts.
  • the means operatively associated with said differential gear means for alternatively stopping and releasing both driven shafts includes a band brake means for each driven shaft, each bank hand brake means having a pulling end, a cylinder, a piston means movable within said cylinder and having opposite end portions, said pulling ends of the band brake means being connected to the opposite end portions of said piston means, and means for controlling reciprocating movement of said piston means so that when one band means is applied to stop its associated driven shaft, the other band means releases its associated driven shaft when the piston means moves in one direction, and said other band means is applied to and stops its associated driven shaft and said one band means releases its associated driven shaft when the piston means moves in the opposite direction.
  • the present invention relates to apparatus for cor veying and depositing overlapped sheets of paper or the lik after they have been ejected from transverse cutters or 0th 3 sheet-producing or sheet-processing machines It is customary in machines of this type, especial with high-speed transverse cutters, to delay the sheets lea the transverse cutter device to such an extent that the she become overlapped during this delay so as to ensure disturb v free deposit 1 on the stack or layboy. The reduction in the of advance of the sheets takes place in such manner that se conveyor belts transporting the sheets are connected serial successively lower speeds.
  • turbances for example in printing presses, if they were proc essed further.
  • physical, optical or electronic flaw detection devi which initiate an impulse upon the appearance of a flaw in t] paper web or in the sheet.
  • This impulse in turn activates a device, for example a gate or deflector movable into the lin of advance of the sheets to divert or cause removal of the s. possessing the flow.
  • the diverted or removed sheet or sheet being then deposited on a separate stack.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
US782256A 1967-12-08 1968-12-09 Apparatus for conveying and depositing overlapped sheets of paper and the like Expired - Lifetime US3565423A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671561722 DE1561722B2 (de) 1967-12-08 1967-12-08 Vorrichtung zum foerdern und ablegen ueberlappter bogen aus papier oder dgl.

Publications (1)

Publication Number Publication Date
US3565423A true US3565423A (en) 1971-02-23

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Application Number Title Priority Date Filing Date
US782256A Expired - Lifetime US3565423A (en) 1967-12-08 1968-12-09 Apparatus for conveying and depositing overlapped sheets of paper and the like

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US (1) US3565423A (enrdf_load_stackoverflow)
AT (1) AT290290B (enrdf_load_stackoverflow)
FR (1) FR1597705A (enrdf_load_stackoverflow)
GB (1) GB1248750A (enrdf_load_stackoverflow)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3623722A (en) * 1970-08-31 1971-11-30 Bonnierfoeretagen Ab Automatic switch for stream diverter
US3881720A (en) * 1973-03-21 1975-05-06 Champion Int Corp Gripless sheet guiding apparatus
US3945635A (en) * 1974-07-19 1976-03-23 Pitney-Bowes, Inc. Power stacker
US3945633A (en) * 1973-07-23 1976-03-23 Harris-Intertype Corporation Hopper loader
US4184392A (en) * 1976-12-30 1980-01-22 Masson Scott Thrissell Engineering Ltd. Web cutting machines
DE3037514A1 (de) * 1979-10-05 1981-04-09 Molins Machine Co., Inc., Cherry Hill, N.Y. Verfahren und anordnung zum ausstanzen von kartonzuschnitten aus einem laufenden band und zum aufstapeln dieser zuschnitte auf einem foerderer
US4283185A (en) * 1979-10-09 1981-08-11 Molins Machine Company, Inc. Stacker conveyor run separation control
US4373713A (en) * 1980-12-24 1983-02-15 Motter Printing Press Co. Diverter mechanism
US4428574A (en) 1980-11-29 1984-01-31 Komori Printing Machinery Co., Ltd. Paper delivery apparatus for use in rotary printing presses
US4518161A (en) * 1982-01-22 1985-05-21 Tokyo Shibaura Denki Kabushiki Kaisha Sheet sorting apparatus
US4548404A (en) * 1983-04-02 1985-10-22 E.C.H. Will (Gmbh & Co.) Method and apparatus for forming a stream of partly overlapping paper sheets
US4919027A (en) * 1986-04-04 1990-04-24 Littleton Industrial Consultants, Inc. Sheet diverting and delivery system
US5039082A (en) * 1986-04-04 1991-08-13 Littleton Industrial Consultants, Inc. Double slow down pinless and gripperless delivery system
US5722655A (en) * 1995-02-16 1998-03-03 Ferag Ag Apparatus for evenly spacing successive printed products
US20150118004A1 (en) * 2012-05-03 2015-04-30 Holweg Group Method and Machine For Forming Bag Packs
US9027737B2 (en) 2011-03-04 2015-05-12 Geo. M. Martin Company Scrubber layboy
US10967534B2 (en) 2012-06-04 2021-04-06 Geo. M. Martin Company Scrap scraper

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4316400C2 (de) * 1993-05-17 1997-12-11 Heidelberger Druckmasch Ag Einrichtung zur Entnahme aus einem Förderstrom ausgeschleuster Exemplare

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2852256A (en) * 1955-09-09 1958-09-16 Milprint Inc Art of delivering flexible sheets

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2852256A (en) * 1955-09-09 1958-09-16 Milprint Inc Art of delivering flexible sheets

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3623722A (en) * 1970-08-31 1971-11-30 Bonnierfoeretagen Ab Automatic switch for stream diverter
US3881720A (en) * 1973-03-21 1975-05-06 Champion Int Corp Gripless sheet guiding apparatus
US3945633A (en) * 1973-07-23 1976-03-23 Harris-Intertype Corporation Hopper loader
US3945635A (en) * 1974-07-19 1976-03-23 Pitney-Bowes, Inc. Power stacker
US4184392A (en) * 1976-12-30 1980-01-22 Masson Scott Thrissell Engineering Ltd. Web cutting machines
DE3037514A1 (de) * 1979-10-05 1981-04-09 Molins Machine Co., Inc., Cherry Hill, N.Y. Verfahren und anordnung zum ausstanzen von kartonzuschnitten aus einem laufenden band und zum aufstapeln dieser zuschnitte auf einem foerderer
US4289052A (en) * 1979-10-05 1981-09-15 Molins Machine Company, Inc. Web gap control for corrugator
US4283185A (en) * 1979-10-09 1981-08-11 Molins Machine Company, Inc. Stacker conveyor run separation control
US4428574A (en) 1980-11-29 1984-01-31 Komori Printing Machinery Co., Ltd. Paper delivery apparatus for use in rotary printing presses
US4373713A (en) * 1980-12-24 1983-02-15 Motter Printing Press Co. Diverter mechanism
US4518161A (en) * 1982-01-22 1985-05-21 Tokyo Shibaura Denki Kabushiki Kaisha Sheet sorting apparatus
US4548404A (en) * 1983-04-02 1985-10-22 E.C.H. Will (Gmbh & Co.) Method and apparatus for forming a stream of partly overlapping paper sheets
US4919027A (en) * 1986-04-04 1990-04-24 Littleton Industrial Consultants, Inc. Sheet diverting and delivery system
US5039082A (en) * 1986-04-04 1991-08-13 Littleton Industrial Consultants, Inc. Double slow down pinless and gripperless delivery system
US5722655A (en) * 1995-02-16 1998-03-03 Ferag Ag Apparatus for evenly spacing successive printed products
US9027737B2 (en) 2011-03-04 2015-05-12 Geo. M. Martin Company Scrubber layboy
US20150118004A1 (en) * 2012-05-03 2015-04-30 Holweg Group Method and Machine For Forming Bag Packs
US9663320B2 (en) * 2012-05-03 2017-05-30 Holweg Group Method and machine for forming bag packs
US10967534B2 (en) 2012-06-04 2021-04-06 Geo. M. Martin Company Scrap scraper

Also Published As

Publication number Publication date
GB1248750A (en) 1971-10-06
FR1597705A (enrdf_load_stackoverflow) 1970-06-29
AT290290B (de) 1971-05-25

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