US3491902A - Air pressure stacking apparatus for metal sheets - Google Patents

Air pressure stacking apparatus for metal sheets Download PDF

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Publication number
US3491902A
US3491902A US675554A US3491902DA US3491902A US 3491902 A US3491902 A US 3491902A US 675554 A US675554 A US 675554A US 3491902D A US3491902D A US 3491902DA US 3491902 A US3491902 A US 3491902A
Authority
US
United States
Prior art keywords
stacking
sheets
sheet
metal sheets
side walls
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
US675554A
Other languages
English (en)
Inventor
Walter Waldura
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.)
Moeller and Neuman GmbH
Original Assignee
Moeller and Neuman 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 Moeller and Neuman GmbH filed Critical Moeller and Neuman GmbH
Application granted granted Critical
Publication of US3491902A publication Critical patent/US3491902A/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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/26—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles
    • B65H29/28—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles from mechanical grippers
    • 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
    • B65G57/02—Stacking of articles by adding to the top of the stack
    • B65G57/03—Stacking of articles by adding to the top of the stack from above
    • B65G57/035—Stacking of articles by adding to the top of the stack from above with a stepwise downward movement of the stack
    • 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
    • B65G57/02—Stacking of articles by adding to the top of the stack
    • B65G57/03—Stacking of articles by adding to the top of the stack from above
    • B65G57/06—Gates for releasing 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
    • B65H29/245—Air blast devices
    • 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
    • B65H29/26—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles
    • B65H29/34—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles from supports slid from under 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
    • 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
    • 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
    • Y10S414/00—Material or article handling
    • Y10S414/10—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns
    • Y10S414/101—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns with article-supporting fluid cushion
    • 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
    • Y10S414/00—Material or article handling
    • Y10S414/10—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns
    • Y10S414/114—Adjust to handle articles or groups of different sizes

Definitions

  • the invention relates to an air pressure stacking apparatus for metal sheets in which the stacking box has smooth laterally adjustable side Walls and a vertically movable stacking table with surface interruptions for receiving and discharging a stack of metal sheets.
  • the surface interruptions are necessary to allow the introduction of a chain conveyor or in the case of naturally movable stacking tables the arms of a gripping crane for removing the sheet stacks.
  • the air stacking apparatus fulfills this need by using known mechanical means which are operable independently of the air flow to provide additional, temporary support of the first incoming sheet of a stack and particularly for air pressure stacking of sheets above 3 mm. thickness.
  • the invention is based on the recognition that it was not the weight of the sheets which constituted the impediment of using air pressure stacking also in the area of medium size sheets but the fact that the interruptions in the platform surface of the stacking table which are necessary, produce such a great loss of air and air vor-texes that the air flow is just suflicient to support thin sheets and is not able to support sheets of more than 3 mm. thickness.
  • the new process of stacking the first sheet Patented Jan. 27, 1970 according to the invention mechanically the exclusive air pressure stacking is made possible for all subsequent sheets because the first sheet covers the interruptions in the table top of the stacking table and renders them ineffective.
  • the first mechanically stacked sheet does usually suffer no damage by travelling on the known support means carrying rollers and being ajustable from an ineffective position to a position extending from the side walls of the stacking box and on which the first sheet travels with its edges, because the continuously effective air flow still fulfills at least part of its purpose and the mechanical support means have to support only a part of the sheet weight. Furthermore it would not be particularly inconvenient to subject the first or lowermost sheet of a sheet stack to a special control for surface faults. The fact that all other subsequent sheets of medium size thickness may be air pressure stacked absolutely without support contact is a considerable advance in the art.
  • the invention provides that the lower driving roller of the driving roller pair disposed at the inlet of the stacking box is constituted as a grooved roller whereby the nozzles of the air supply may enter into the grooves of this lower driving roller.
  • FIGURE 1 shows a cross-section through the stacking box of the invention.
  • FIGURE 2 is a partial longitudinal section of the inlet region of the stacking box of FIGURE 1,
  • the stacking box proper is constituted in a known manner of two lateral beams 1, 2 having smooth side walls 1a, 2a which are spaced from each other at the particular distance required for receiving incoming sheets 3 and the walls are laterally adjustable to accommodate varying widths of sheets.
  • the side walls 1a, 2a have at the inlet level of the sheets a row of circular openings through which support rolls 4, 5 may be advanced in a known manner when a sheet 3 is introduced.
  • the support rolls 4, 5 may be quickly retracted by means of hydraulic drives 4a, 5a in order to release a sheet which has been introduced and allow it to sink on the stacking table 6.
  • other known mechanical means may be provided to support an incoming sheet 3, for example turnstile wheels or the like.
  • the stacking table 6 is constituted of a number of spaced column 6a whose cross-beam 6c is covered at the top with wooden boards 6b forming an interrupted platform.
  • the columns 6a rest on intermediate plates 7 and cross-supports 8 which are guided laterally in a known manner over end rolls 8a and are vertically adjustable.
  • the stacking table 6 with the platform of wooden boards 6b forms thus a stacking floor which may be lowered, and the interruptions of the floor are necessary because the stacking table floor must be lowered below the plane of the conveyor chains 9 which remove a stack of sheets laterally from the stacking apparatus. But also in the case of laterally discharging stacking carriages these interruptions of the stacking floor would be necessary in order to reach with the gripper arms of a crane under the stack sheets.
  • the stacking apparatus described above is basically known. Each individual incoming sheet 3 is supported by the support rolls 4, 5 until it has left the inlet driving roller pair 10, 11 and comes to rest at an abutment not shown. When the support rollers 4, 5 are retracted each sheet drops down on the stacking table 6 which is lowered stepwise as the stack grows until a completed stack is taken over and removed by the conveyor chains.
  • the novel feature of the invention is to combine the mechanically operated supporting means with an air supply at the inlet end so that also sheets of over 3 mm. thickness and greater length may be stacked by means of the air flow without any surface contact, as it is already known for thin sheets below a 3 mm. thickness.
  • the air supplied by a blower enters an air conduit 12 from which individual nozzles 13 project and these nozzles extend into the grooves of the lower driving roller 11 constituted as a groove roller. In this manner it is obtained that the strong air flow is admitted directly under the incoming sheets.
  • the stacking apparatus illustrated is so operated that in each instance the first sheet of a new stack, i.e.
  • the stacking table 6 is at a sufiiciently high level that the first lowered sheet is still inside of the lower level of the side walls 1a, 2a and this relationship must be maintained for all subsequent sheets in order to make sure that in each instance the uppermost sheet of the stack forms with the side walls 1a, 2a a substantially closed trough in order to avoid as much as possible any loss of air flow.
  • Stacking apparatus for metal sheets comprising, in combination, a stacking box having a pair of side walls arranged in spaced parallel relationship for accommodating metal sheets to be stacked therebetween, said side walls having an inlet for said metal sheets at one end, a vertically adjustable stacking table having a horizontally extending, interrupted floor arranged to be accommodated between said side walls for supporting said metal sheets in a stacked relationship, means for sequentially introducing metal sheets in a substantially horizontal plane into said stacking box through said inlet end between said side walls for subsequently forming a vertical stack of said sheets on said stacking table, retractable means in said side walls movable into an extended position within said stacking box for supporting the first metal sheet introduced into said stacking box, said retractable means being movable into a retracted position to permit said first metal sheet to drop onto said stacking table and close the interruptions in said stacking floor, means for introducing pressurized air into said stacking box through said inlet end in a plane closely adjacent the inlet plane of said metal sheets to form an air cushion for said
  • said metal sheet introducing means include a pair of driving rolls arranged in vertically stacked relationship adjacent said side walls inlet end, the lower of said driving rolls being provided with a plurality of axially spaced annular grooves and wherein said pressurized air is introduced into said stacking box through said lower driving roll annular grooves.
  • a method of stacking metal sheets in a stacking box having a pair of side walls arranged in spaced parallel relationship and a vertically adjustable stacking table having a horizontally extending, interrupted floor arranged to be accommodated between said side walls for supporting said metal sheets in a stacked relationship comprising the steps of, positioning sheet support means within said stacking box between said side walls, introducing a first metal sheet in a substantially horizontal plane into said stacking box between said side walls in supported relationship with said support means, withdrawing said first sheet support means to permit said first metal sheet to drop onto said interrupted floor 'to close the interruptions in said stacking fioor, sequentially introducing subsequent metal sheets into said stacking box between said side walls in a substantially horizontal plane while maintaining said sheet support means in a withdrawn position, introducing pressurized air into said stacking box closely adjacent the inlet plane of said metal sheet for forming an air cushion under said metal sheets to permit said metal sheets to drop gently without utilizing the support means onto the previously stacked metal sheets on said stacking table, vertically adjusting said stacking table to maintain

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US675554A 1966-10-22 1967-10-16 Air pressure stacking apparatus for metal sheets Expired - Lifetime US3491902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV32182A DE1274988B (de) 1966-10-22 1966-10-22 Stapelvorrichtung fuer Bleche

Publications (1)

Publication Number Publication Date
US3491902A true US3491902A (en) 1970-01-27

Family

ID=7587063

Family Applications (1)

Application Number Title Priority Date Filing Date
US675554A Expired - Lifetime US3491902A (en) 1966-10-22 1967-10-16 Air pressure stacking apparatus for metal sheets

Country Status (7)

Country Link
US (1) US3491902A (xx)
BE (1) BE705166A (xx)
CS (1) CS157628B2 (xx)
DE (1) DE1274988B (xx)
FR (1) FR1557694A (xx)
GB (1) GB1179270A (xx)
LU (1) LU54609A1 (xx)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036087A (en) * 1974-11-27 1977-07-19 L. Schuler Gmbh Apparatus for cutting strip material into lengths and for stacking the cut lengths of strip material
US4130207A (en) * 1976-03-05 1978-12-19 The Wessel Company, Inc. Apparatus for stacking booklets from the top
US4280618A (en) * 1977-08-19 1981-07-28 Armour And Company Device for handling meat logs and other articles
EP2896585A1 (en) * 2014-01-20 2015-07-22 Paola Ferrari Machine for stacking tiles with support devices operated from above
WO2016156929A1 (en) * 2015-04-03 2016-10-06 Paola Ferrari Machine for stacking tiles with support devices operated from above.
US20180009621A1 (en) * 2016-07-06 2018-01-11 Honda Motor Co., Ltd. Workpiece storage method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5135960A (ja) * 1974-09-24 1976-03-26 Asahi Chemical Ind Banjobutsukongonpansochi
DE2521178C2 (de) * 1975-05-13 1977-07-07 Hoesch Werke Ag Anordnung zum stapeln von blechpaketen zu paketstapeln
DE3312120A1 (de) * 1983-04-02 1984-10-11 Werner Dr.-Ing. 5760 Arnsberg Wiewelhove Vorrichtung zum stapeln von rechteckigen blechen, platten oder profilen aus st- oder ne-werkstoffen, ihrer zuschnitte oder ihrer formteile

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2261972A (en) * 1940-04-27 1941-11-11 Maxson Automatic Mach Sheet feeding and stacking method and machine
DE812537C (de) * 1949-09-17 1951-09-03 Banning A G J Vorrichtung zum Stapeln von platten- und streifenfoermigem Gut, wie Walzgut
US2637450A (en) * 1949-10-14 1953-05-05 Eshelman Alvin Lenhert Article stacking apparatus
US2645480A (en) * 1952-05-22 1953-07-14 Henry R Long Sheet delivery system for presses
US2985322A (en) * 1958-02-07 1961-05-23 Coe Mfg Co Apparatus for handling rigid sheet material
US3224761A (en) * 1962-06-29 1965-12-21 Jagenberg Werke Ag Method and apparatus for depositing sheets ejected by a cross cutter
US3321202A (en) * 1965-05-03 1967-05-23 Merrill D Martin Automatic sheet stackers
US3381829A (en) * 1966-03-22 1968-05-07 Towlsaver Inc Sheet stacking machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE873518C (de) * 1951-03-30 1953-04-16 Siemag Vertriebsgesellschaft M Stapelvorrichtung fuer dieser mittels einer Foerdereinrichtung zugefuehrte Platten
US2882048A (en) * 1954-03-19 1959-04-14 Kaiser Aluminium Chem Corp Article handling device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2261972A (en) * 1940-04-27 1941-11-11 Maxson Automatic Mach Sheet feeding and stacking method and machine
DE812537C (de) * 1949-09-17 1951-09-03 Banning A G J Vorrichtung zum Stapeln von platten- und streifenfoermigem Gut, wie Walzgut
US2637450A (en) * 1949-10-14 1953-05-05 Eshelman Alvin Lenhert Article stacking apparatus
US2645480A (en) * 1952-05-22 1953-07-14 Henry R Long Sheet delivery system for presses
US2985322A (en) * 1958-02-07 1961-05-23 Coe Mfg Co Apparatus for handling rigid sheet material
US3224761A (en) * 1962-06-29 1965-12-21 Jagenberg Werke Ag Method and apparatus for depositing sheets ejected by a cross cutter
US3321202A (en) * 1965-05-03 1967-05-23 Merrill D Martin Automatic sheet stackers
US3381829A (en) * 1966-03-22 1968-05-07 Towlsaver Inc Sheet stacking machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036087A (en) * 1974-11-27 1977-07-19 L. Schuler Gmbh Apparatus for cutting strip material into lengths and for stacking the cut lengths of strip material
US4130207A (en) * 1976-03-05 1978-12-19 The Wessel Company, Inc. Apparatus for stacking booklets from the top
US4280618A (en) * 1977-08-19 1981-07-28 Armour And Company Device for handling meat logs and other articles
EP2896585A1 (en) * 2014-01-20 2015-07-22 Paola Ferrari Machine for stacking tiles with support devices operated from above
WO2016156929A1 (en) * 2015-04-03 2016-10-06 Paola Ferrari Machine for stacking tiles with support devices operated from above.
US20180009621A1 (en) * 2016-07-06 2018-01-11 Honda Motor Co., Ltd. Workpiece storage method
CN107585578A (zh) * 2016-07-06 2018-01-16 本田技研工业株式会社 工件储存方法
US10556767B2 (en) * 2016-07-06 2020-02-11 Honda Motor Co., Ltd. Workpiece storage method

Also Published As

Publication number Publication date
DE1274988B (de) 1968-08-08
CS157628B2 (xx) 1974-09-16
FR1557694A (xx) 1969-02-21
LU54609A1 (xx) 1967-12-06
BE705166A (xx) 1968-03-01
GB1179270A (en) 1970-01-28

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