US3568860A - Stacking or tiering device - Google Patents

Stacking or tiering device Download PDF

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Publication number
US3568860A
US3568860A US799727A US3568860DA US3568860A US 3568860 A US3568860 A US 3568860A US 799727 A US799727 A US 799727A US 3568860D A US3568860D A US 3568860DA US 3568860 A US3568860 A US 3568860A
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US
United States
Prior art keywords
package
blades
zone
stacking zone
vertical stacker
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
US799727A
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English (en)
Inventor
Philip G Rawlins
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.)
Boeing North American Inc
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North American Rockwell Corp
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Filing date
Publication date
Application filed by North American Rockwell Corp filed Critical North American Rockwell Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G57/00—Stacking of articles
    • B65G57/30—Stacking of articles by adding to the bottom of the stack
    • B65G57/305—Stacking of articles by adding to the bottom of the stack by means of rotary devices or endless elements
    • B65G57/306—Stacking of articles by adding to the bottom of the stack by means of rotary devices or endless elements the rotary devices being wheels
    • 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
    • B65H2301/42122—Forming a pile of articles substantially horizontal by introducing articles from under the pile

Definitions

  • the paddle wheels Upon completion of the UNITED STATES PATENTS delivery the paddle wheels are rotated or indexed in a 2 224 606 l2/l940 N k I 214 6 2 X direction to elevate the package by the underlying blades and 2570198 10/1951 e 21 position succeeding blades for receiving a second package. 2596228 /1952 g Upon further indexing movement of the paddle wheels the ini- 33 9/1960 c er 214/6 2 tial package is again elevated until the blades performing such 33877l9 6/1968 Melsow function withdraw past the edges of the package and permit core the package to drop onto the package supported by the blades FOREIGN PATENTS therebelow.
  • the instant invention has for its principal object the provision of a machine or device for stacking or tiering relatively thin flat objects such as floor and ceiling tiles, wrapped books, paper sheets, shallow filled trays and other flat objects and packages, all of which will be hereinafter referred to as packages;" at speeds unobtainable with conventional equipment employing an elevator to lift each individual package above a package retaining gate means, the elevator then returning to its original level to repeat the operation.
  • the machine finds a principal field of use in the formation of stacks of packages constituting case loads or partial case loads which may be shifted directly from the stacking device into a case or to a location removed from the stacking device for assembly with other like stacks to constitute a case load;
  • the device of the instant invention which attains the above-noted and other objects as will become apparent, comprises a conveyor means adapted to receive the packages from a supply source at a receiving zone and deliver them to a stacking zone.
  • Two or more package elevating means are spaced apart along each side of the stacking zone.
  • Each elevating means is, in effect, a paddle wheel mounted for rotation on an axis lying parallel to the conveyor.
  • the paddle wheels are arranged for simultaneous step-by-step rotation or indexing movements to position a blade of a succession thereof carried by'each wheel, in underlying relationship to the margins of the last package delivered by the conveyor to the stacking zone.
  • the indexing of the paddle wheels to position blades thereof as aforesaid simultaneously causes first preceding blades to elevate a last previously delivered package above said conveyor and second preceding blades to elevate a second from the last previously delivered package and any still previously delivered packages stacked thereon, to the point where, due to the rotation of the wheels, the ends of the blades are withdrawn beyond the margins of said second from the last previously delivered package.
  • the withdrawing of the blades permits the last mentioned package and any overlying stack to drop back onto the first from the last previously delivered package.
  • FIG. I is a side elevational view of an apparatus in accordance with the instant invention.
  • FIG. 2 is a sectional view on an enlarged scale taken on the line 2-2 of FIG. I looking in the direction indicated by the arrows;
  • FIG. 3 is a top plan view of a portion of the apparatus illus trated in FIG. 1;
  • FIGS. 4,5 and 6 are diagrammatic sectional views taken similarly as FIG. 2 and illustration different steps in the operation of the device.
  • FIG. 7 is a wiring diagram for the electric system of the device of the instant invention.
  • the device of the instant invention comprises a frame structure, indicated generally at 10, supporting an endless conveyor, indicated generally at 11, in an elevated position.
  • Conveyor ill suitably comprises a pair of spaced V-belts 12 carried by pulleys 13 mounted on shafts 14 and 15.
  • the shafts are supported in suitable bearings at opposite ends of the frame structure the bearings being carried by brackets 16 and I7, respectively.
  • the device is divided lengthwise of the conof the V-belts for substantially the full run thereof.
  • a press roll 23 preferably extends transversely of the V-belts in the receiving and transfer zone the roll suitably having a surface layer 24 of yieldable material such as rubber or the like.
  • Roll 23 is car ried by a shaft 25 mounted for rotation in bearings carried by brackets 26 projecting upwardly from the machine frame. The spacing of the press roll 23 from the conveyor belts 12 at the nip between them is so correlated to the thickness of the packages to be conveyed and stacked as to assure that a package will move with the conveyor.
  • the conveyor ll comprising the V-belts is suitably constantly driven to move the upper run in the direction indicated by the arrow in FIG. I by an electric motor 30 through a speed reduction unit 32, sprockets 33 and 38 secured to an extending end of shaft 15 and to the shaft of the spaced reduction unit respectively, and a sprocket chain 34.
  • Press roll 23 is suitably driven from the conveyor drive by means of a pulley 35 secured to shaft 25, a pulley 36 secured to shaft 14 and a crossed drive belt 37.
  • the relationship between the diameters of pulleys.35 and '36 and the diameter of roll 23 is such that the peripheral speed of the roll is equivalent, or substantially equivalent, to the rate of travel of conveyor 11.
  • a plurality, three being shown, of upright package confining members 39 are supported by the frame at intervals on each side of the stacking zone, the members 39 on one side being in directly opposed relationship to the members on the other side.
  • the spacing between the opposed members 39 is suitably slightly greater than the widths of the packages to be stacked and members 39 project upwardly for at least the height of the stack of packages to be formed.
  • each of the members 39 is provided with an outwardly bent edge or flange 40, the flanges serving to, in effect, cam a package, the leading edge of which may be somewhat out of alignment with the space between the opposed members, into such an alignment.
  • Package elevating device 41 which are of a paddle wheel construction, are keyed to shafts 42 and 42a on opposite sides of the stacking zone for rotation with the shafts.
  • the shafts are carried in suitable bearings supported on the machine frame as illustrated particularly in FIG. I.
  • the elevating devices 41 are located on their shafts intermediate members 39 on each side of the stacking zone and substantially fill the spaces between them and suitably one of said devices is also mounted on each of said shafts to the right, as seen in FIG. 1, of the member 39 adjacent the rear end of the stacking zone conveyor.
  • Each of the elevating devices consist of a hub 43 (FIG. 4)- supporting a succession of radially extending, equally spaced blades 44 the blades terminating in bent ends or flanges 45.
  • the location of the shafts 42, and 42a the lengths of blades 44 and the stopped positions of the elevating members are such that when a package P is carried into the stacking zone by conveyor 11 blades of opposed ones of the elevating members will underlie the margins of the package in substantial parallelism and approximately contacting relationship therewith (see FIG. 2).
  • the blades of each elevating device are so angularly positioned that their end portions 45 projecting inwardly of member 39 are spaced apart a distance to freely receive a package margin therebetween as illustrated in FIGS.2,4,5 and 6 so as to not bind upon the package when the elevating device is rotated in a package lifting direction.
  • Means are provided to rotate or index shafts 42 and 42a on opposite sides of the stacking zone in a counterclockwise and a clockwise direction respectively, as viewed in FIGS. 2, 4, and 6 sufficiently to shift the blades 44, which underlie the package margin, from their horizontal position to their first upwardly inclined position, both as shown in said FIGS. and to bring following blades into their horizontal package supporting position.
  • the means for this purpose comprises ratchet wheels 46 and 47 (FIG. 2) keyed or otherwise secured to the shafts 42 and 42a respectively for conjoint rotation therewith, each ratchet wheel having a number of teeth equivalent to the number of blades and being so designed that upon advancement of the ratchet wheels one tooth the blades are rotated or indexed to assume the positions as previously pointed out.
  • the means for advancing the ratchet wheels comprises arms 50 and 51 having hubs mounted for free rocking movement on shafts 42 and 42a, respectively, the arms carrying pawls 52 and 53 respectively suitably spring pressed to maintain end portions thereof in engagement with the ratchet wheels.
  • Arms 50 and Sll are rocked through an arc sufficient to cause the pawls to advance the ratchet wheels one tooth and to return the pawls to their initial positions by a cam 54 having a riser 75 said cam being keyed to a shaft 55, rocker arms 56 and 57 carrying follower rollers 60 and 61, respectively, positioned to ride on the periphery of cam 54, and links 62 and 63 connecting the outer ends of rocker arms 56 and 57 to the outer ends of their respective arms 50 and 51.
  • the rocker arms are urged to rotate in a direction to maintain their followers in contact with the cam by suitable means such as tension springs 64 (FIG. 1) each having one end connected to its associated rocker arm and its other end connected to a fixed element of the machine frame.
  • Shaft 55 carrying cam 54 is driven through single cycles of rotation by a constantly running motor 65 and a single revolution clutch-brake assembly 80 of conventional type such for example as Model EM 50 manufactured by the Warner Electric Co. of Beloit, Wis.
  • the clutch element 83 of the clutch-brake assembly 80 is energized to start rotation of shaft 55 through a single revolution by the closing of a normally open microswitch 66 having an operating arm 67 including a projecting finger 68 positioned to be contacted by a package and shifted to close the switch as a package is delivered to its furthest position in the stacking zone as determined by end stops 70.
  • Switch 66 is included in the electrical circuit of FIG. 7 which additionally includes main power leads 71 and 72 and a relay 73 the latter when energized shifting a movable contactor 81 of the relay from the position shown in FIG. 7, into contact with fixed contacts 82 to energize clutch elements 83, and shifting contactor 84 away from fixed contacts 85 to deenergize brake element 86 of the clutch-brake assembly 80.
  • the relay is deenergized the movable contactors, under the influence of spring 87, return to the positions of FIG. 7 deenergizing the clutch element and energizing the brake element.
  • the electrical circuit also includes a normally closed switch 74 adapted to be opened by the riser 75 of cam 54 (FIGS. 2 and 7) previously referred to.
  • Switch 74 is supported from the machine frame in a position to be opened and hence open the circuit to the clutch brake assembly when the latter has completed a cycle of operation.
  • switch 74 When a second cycle of operation is initiated through the closing of switch 66 by an incoming package the operating arm of switch 74 will ride off the riser 75 of cam 54 to close the switch before switch 66 is permitted to open through the elevation of the package which closed it. Hence the circuit to relay 73 will remain closed until cam 54 again opens switch 74 at the end of the cycle.
  • a succession of packages P are delivered from a supply thereof by any suitable means such as an infeed conveyor (not shown) to conveyor 11 and to the left, as viewed in FIG. 1 of press roll 23.
  • the delivery rate is normally such that the packages are in end abutting relationship as they are fed into the packaging zone.
  • the rate of delivery is such that the forward package is elevated before the following package reaches the stacking zone.
  • FIGS. 4 to 6 inclusive a situation is illustrated in which the stacking zone is initially empty of packages.
  • the initial package P-l is fed into the stacking zone by conveyor 11 and approaches its farthest position against stops 70 it strikes finger 68 of switch 66 to close the same (FIG. 4).
  • the closing of switch 66 which as previously explained is included in the operative circuit of the clutchbrake assembly, energizes the clutch element thereof and shaft 55 starts a cycle of rotation.
  • the riser of cam 54 lifts followers 60 and 61, pawls 52 and 53 rotate their respective ratchet-wheels 46 and 47 to in turn rotate shafts 42 and 42a. Rotation of the shafts causes the rotation or indexing of the paddle wheels.
  • a vertical stacker for packages such stacker including a stacking zone and a package receiving zone, means to deliver packages from said receiving zone to said stacking zone and means to elevate packages delivered to said stacking zone to form an overlying stack thereof
  • said elevating means comprises a series of lifting elements on opposite sides of said stacking zone and means to successively move each lifting element of each series in steps from a first element remains in marginal contactwith said first mentioned package and to a further elevated but withdrawn package releasing position whereby said first mentioned package may drop onto said second mentioned package.
  • a vertical stacker as defined in claim 2 wherein said means to rotate said hub members comprises pawl and ratchet means and actuating means therefor 4.
  • a vertical stacker as defined in claim .1 wherein there is switch means positioned to be actuated upon the delivery of a package to said stacking zone and wherein said switch means is included in an electrical circuit controlling the operation of said lifting elements.
  • a vertical stacker as defined in claim 1 wherein there is a plurality of series of said lifting elements on each of the opposite sides of said stacking zone and wherein the lifting elements of each series comprise blades projecting radially in equally spaced relationship from a central hubl 7.
  • a vertical stacker as definedin claim '6 wherein said hubs on each of said opposite sides of said stacking zone are carried by and affixed to a common shaft and there is means for rotating said shift to index said blades'through said several positions. 7
  • said means for rotating said shafts comprises a toothed ratchet wheel affixed to each shaft, a ratchet pawl for each ratchet wheel adapted to rotate its associated. ratchet wheel through the distance of one tooth upon an operative stroke of said pawl and there is means for causing operative strokes of said pawl.
  • a vertical stacker as defined in claim 8 wherein said means for causing operative strokes of said ratchet pawls comprises a rockable lever arm supporting; each pawl and cam and follower means for rocking said lever arms.
  • each lifting element of each series comprises a blade projecting radially from a central hub and terminating at its outer end in a relatively narrow flange extending in an outwardly and downwardly direction when said blade is in said first position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Discharge By Other Means (AREA)
US799727A 1969-02-17 1969-02-17 Stacking or tiering device Expired - Lifetime US3568860A (en)

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US79972769A 1969-02-17 1969-02-17

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3831781A (en) * 1972-07-19 1974-08-27 N Anikanov Apparatus for assembling individual piles of printed matter into stacks
US3837504A (en) * 1973-03-26 1974-09-24 Focke Pfuhl Verpack Automat Device for lifting containers in connection with a packing machine
US3861537A (en) * 1972-03-22 1975-01-21 Yakov Efimovich Duchinsky Device for collecting piles of printed matter into bundles
US3895566A (en) * 1973-04-13 1975-07-22 Nikolai Ivanovich Anikanov Apparatus for assembling piles of printed signatures into batches
US4046371A (en) * 1975-11-11 1977-09-06 Burroughs Corporation Document stacking device
DE2736478A1 (de) * 1976-08-13 1978-02-16 Gram Brdr As Kuehl- oder gefriervorrichtung
US4108319A (en) * 1977-02-22 1978-08-22 Ppg Industries, Inc. Glass accumulator
EP0020973A1 (en) * 1979-06-19 1981-01-07 International Business Machines Corporation Recirculating automatic document feed device for a copying machine
US4335987A (en) * 1980-04-28 1982-06-22 The United States Of America As Represented By The Secretary Of The Navy Apparatus for vertically stacking flat weights
US4363584A (en) * 1979-09-25 1982-12-14 Laurel Bank Machine Co., Ltd. Paper sheet accumulator assembly and bank note dispenser provided therewith
US4397455A (en) * 1977-02-04 1983-08-09 Docutel Corporation Document dispenser with escrow system
US4406572A (en) * 1981-06-29 1983-09-27 Honeywell Information Systems Inc. Transfer system
EP0337958A1 (en) * 1988-04-13 1989-10-18 I.M.A. INDUSTRIA MACCHINE AUTOMATICHE S.p.A. Device for forming a pile of blister packs in an upward direction
US6250626B1 (en) * 1998-11-12 2001-06-26 Riso Kagaku Corporation Sheet discharging apparatus
DE10025394A1 (de) * 2000-05-23 2001-12-13 Wincor Nixdorf Gmbh & Co Kg Vorrichtung zur geordneten Ablage von ID-Karten
US20080099975A1 (en) * 2006-10-26 2008-05-01 Kabushiki Kaisha Toshiba Sheet stack loader and sheet loading method
CN117485918A (zh) * 2024-01-03 2024-02-02 陕西宝昱科技工业股份有限公司 一种用于覆铜板生产中的转运托盘的码垛装置
US12397940B2 (en) * 2020-10-26 2025-08-26 R.A Jones & Co. Method and bundling unit for carrying out a multi-layered packaging system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2390354A2 (fr) * 1977-05-13 1978-12-08 Martin Sa Dispositif de separation et d'evacuation de produits en plaques
JPS55127057U (enExample) * 1979-02-28 1980-09-08
US5102378A (en) * 1989-10-27 1992-04-07 Ste Pierre Ferry Limited slip differential

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2224606A (en) * 1939-10-16 1940-12-10 American Laundry Mach Co Stacking device
US2570198A (en) * 1946-04-19 1951-10-09 American Can Co Container transfer mechanism
US2596228A (en) * 1947-02-24 1952-05-13 T & T Vicars Ltd Arranging device for flat articles
GB835565A (en) * 1956-11-09 1960-05-25 Newman Hender And Company Ltd Improvements in a mechanism for stacking trays
US2954133A (en) * 1956-11-03 1960-09-27 Atomic Energy Authority Uk Reversible stacking and unstacking mechanisms
GB903991A (en) * 1958-02-03 1962-08-22 Int Computers & Tabulators Ltd Improvements in or relating to sheet stacking devices
CH409761A (de) * 1960-12-21 1966-03-15 Hesser Ag Maschf Vorrichtung zum Bilden von Stapeln an Maschinen zum Verpacken von je aus mehreren prismatischen Gegenständen bestehenden Stapeln
US3387719A (en) * 1965-04-05 1968-06-11 Laugston Company Counter and bundle ejector

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2224606A (en) * 1939-10-16 1940-12-10 American Laundry Mach Co Stacking device
US2570198A (en) * 1946-04-19 1951-10-09 American Can Co Container transfer mechanism
US2596228A (en) * 1947-02-24 1952-05-13 T & T Vicars Ltd Arranging device for flat articles
US2954133A (en) * 1956-11-03 1960-09-27 Atomic Energy Authority Uk Reversible stacking and unstacking mechanisms
GB835565A (en) * 1956-11-09 1960-05-25 Newman Hender And Company Ltd Improvements in a mechanism for stacking trays
GB903991A (en) * 1958-02-03 1962-08-22 Int Computers & Tabulators Ltd Improvements in or relating to sheet stacking devices
CH409761A (de) * 1960-12-21 1966-03-15 Hesser Ag Maschf Vorrichtung zum Bilden von Stapeln an Maschinen zum Verpacken von je aus mehreren prismatischen Gegenständen bestehenden Stapeln
US3387719A (en) * 1965-04-05 1968-06-11 Laugston Company Counter and bundle ejector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM Technical Disclosure Bulletin, Vol. 6, No. 9, Feb., 1964, Jones, 214/7 *

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861537A (en) * 1972-03-22 1975-01-21 Yakov Efimovich Duchinsky Device for collecting piles of printed matter into bundles
US3831781A (en) * 1972-07-19 1974-08-27 N Anikanov Apparatus for assembling individual piles of printed matter into stacks
US3837504A (en) * 1973-03-26 1974-09-24 Focke Pfuhl Verpack Automat Device for lifting containers in connection with a packing machine
US3895566A (en) * 1973-04-13 1975-07-22 Nikolai Ivanovich Anikanov Apparatus for assembling piles of printed signatures into batches
US4046371A (en) * 1975-11-11 1977-09-06 Burroughs Corporation Document stacking device
US4143758A (en) * 1976-08-13 1979-03-13 Brodene Gram A/S Cooling or freezing apparatus
DE2736478A1 (de) * 1976-08-13 1978-02-16 Gram Brdr As Kuehl- oder gefriervorrichtung
FR2361614A1 (fr) * 1976-08-13 1978-03-10 Gram Brdr As Appareil frigorifique ou congelateur comportant des moyens de transport de supports de produits a refroidir
US4397455A (en) * 1977-02-04 1983-08-09 Docutel Corporation Document dispenser with escrow system
US4108319A (en) * 1977-02-22 1978-08-22 Ppg Industries, Inc. Glass accumulator
EP0020973A1 (en) * 1979-06-19 1981-01-07 International Business Machines Corporation Recirculating automatic document feed device for a copying machine
US4413901A (en) * 1979-06-19 1983-11-08 International Business Machines Corporation Recirculating automatic document feeder
US4363584A (en) * 1979-09-25 1982-12-14 Laurel Bank Machine Co., Ltd. Paper sheet accumulator assembly and bank note dispenser provided therewith
US4335987A (en) * 1980-04-28 1982-06-22 The United States Of America As Represented By The Secretary Of The Navy Apparatus for vertically stacking flat weights
US4406572A (en) * 1981-06-29 1983-09-27 Honeywell Information Systems Inc. Transfer system
EP0337958A1 (en) * 1988-04-13 1989-10-18 I.M.A. INDUSTRIA MACCHINE AUTOMATICHE S.p.A. Device for forming a pile of blister packs in an upward direction
US4955783A (en) * 1988-04-13 1990-09-11 I.M.A. Industria Macchine Automatiche S.P.A. Device for forming a pile of blister packs in an upward direction
US6250626B1 (en) * 1998-11-12 2001-06-26 Riso Kagaku Corporation Sheet discharging apparatus
DE10025394A1 (de) * 2000-05-23 2001-12-13 Wincor Nixdorf Gmbh & Co Kg Vorrichtung zur geordneten Ablage von ID-Karten
DE10025394C2 (de) * 2000-05-23 2003-04-17 Wincor Nixdorf Int Gmbh Vorrichtung zur geordneten Ablage von ID-Karten
US20080099975A1 (en) * 2006-10-26 2008-05-01 Kabushiki Kaisha Toshiba Sheet stack loader and sheet loading method
US20110052361A1 (en) * 2006-10-26 2011-03-03 Kabushiki Kaisha Toshiba Sheet stack loader and sheet loading method
US7988140B2 (en) 2006-10-26 2011-08-02 Kabushiki Kaisha Toshiba Sheet stack loader and sheet loading method
US12397940B2 (en) * 2020-10-26 2025-08-26 R.A Jones & Co. Method and bundling unit for carrying out a multi-layered packaging system
CN117485918A (zh) * 2024-01-03 2024-02-02 陕西宝昱科技工业股份有限公司 一种用于覆铜板生产中的转运托盘的码垛装置
CN117485918B (zh) * 2024-01-03 2024-03-15 陕西宝昱科技工业股份有限公司 一种用于覆铜板生产中的转运托盘的码垛装置

Also Published As

Publication number Publication date
GB1280480A (en) 1972-07-05
JPS4937390B1 (enExample) 1974-10-08

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