US3253825A - Arrangement for individually extracting flat items from a conveyor system - Google Patents

Arrangement for individually extracting flat items from a conveyor system Download PDF

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Publication number
US3253825A
US3253825A US290691A US29069163A US3253825A US 3253825 A US3253825 A US 3253825A US 290691 A US290691 A US 290691A US 29069163 A US29069163 A US 29069163A US 3253825 A US3253825 A US 3253825A
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United States
Prior art keywords
back wall
items
stack
housing
item
Prior art date
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Expired - Lifetime
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US290691A
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English (en)
Inventor
Buchwald Fritz
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.)
International Standard Electric Corp
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International Standard Electric Corp
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Filing date
Publication date
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
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Publication of US3253825A publication Critical patent/US3253825A/en
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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
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/48—Air blast acting on edges of, or under, articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C1/00—Measures preceding sorting according to destination
    • B07C1/02—Forming articles into a stream; Arranging articles in a stream, e.g. spacing, orientating
    • B07C1/04—Forming a stream from a bulk; Controlling the stream, e.g. spacing the articles
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
    • G06K13/02—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier having longitudinal dimension comparable with transverse dimension, e.g. punched card
    • G06K13/08—Feeding or discharging cards
    • G06K13/10—Feeding or discharging cards from magazine to conveying arrangement
    • G06K13/107—Feeding or discharging cards from magazine to conveying arrangement using pneumatic means

Definitions

  • the extracting device is arranged in a partially or almost totally enclosed housing or extends into such a housing, in which the stacked items are placed and individually extracted through a slot, a stream of compressed air being introduced into said housing to provide air lubrication by the formation of air cushions between the surfaces of the items being conveyed.
  • the housing also has air vents in the immediate vicinity of the extracting device to bring the leading item within range of the extracting device, and, if necessary, also on the housing side opposite the extracting device, in order to hold the subsequent item when extracting the preceding item.
  • the housing itself may be either completely closed, that is, once the pile to be separated has been inserted, the opening is closed, or the insertion opening may remain without any cover, if it is so dimensioned that the pile of items inserted partially seals off the opening. Since the items being processed are for the most part items of like format, this condition is not difficult to meet.
  • FIG. 1 is a perspective view of my invention in which, for the sake of clarity, the top housing wall has been removed;
  • FIG. 2 is a side elevational view of the back wall of the housing where separation of the stack takes place;
  • FIG. 3 is a plan view of the extracting end of the housing with the back wall and the leading items of the stack prior to extracting the first item;
  • FIG. 4 is a plan view of the extracting end of the housing according to FIG. 3 immediately after starting to extract the leading item.
  • Housing 2 is dimensioned so that articles 1 fit snugly between side walls 2b and 2c and also between top wall 2a and bottom wall 2d.
  • upper housing wall 2a is shown removed, but when the arrangement is in use, it is connected to the side walls of the housing.
  • the housings back wall has a cut-out 8, into which pneumatic extracting device 11 fits.
  • the extracting device 11 is an uncomplicated arrangement of five belts and four drums driven by external motive power, which has, cooperating with it, an external source of suction.
  • Piping 12 introduces the suction to a vacuum chamber of a manifold type afiixed to the end of said piping.
  • the vacuum chamber is positioned in said cut-out 8 and has an opening, corresponding to the dimensions of the cut-out, which opening is addressed to the inside of the housing 2.
  • Belts 16 and 17 are paired; driven by drums 18 and 15, they travel outward at the front and return at the rear. Both belts 16 and 17 have ridges across their widths on those surfaces which are opposite the surfaces which contact drums 18 and 15.
  • Belts 19 and 20, shown only partially in FIGURE 1, are driven, respectively, by drums 21 and 18 and other given drums of agiven conveying complex. Said given drums and said given conveying complex, are not shown, nor are they within the scope of the subject invention.
  • Arrows drawn in FIGURE 1 signify the direction of rotation of the drums, and the direction of travel in differing planes for each belt, of extracting device 11. As the leading item is separatedout for extraction by means of an air cushion, in a manner explained in the following discussion, it is drawn fast to belt 13, as the suction introduced to the vacuum chamber whichterminates piping 12, and the apertures in belt 13, cooperate to extract said leading item.
  • Belts 16, 17 and 19 receive the extracted leading item and feed it through to the point where belts 19 and 20 pair to convey said leading item to said given conveying complex.
  • Air chambers 4 which are attached to the housing at the top and, if necessary, at the bottom and which let compressed air into the housing through openings 5.
  • Air chambers 4 are provided with a compressed air source at 5a.
  • openings 6 in the side walls serve simply to determine the degree of pressure when the arrangement is working and to loosen the stack in the direction of the extracting end
  • openings 9 are used to cause the compressed air to press the leading item away from the stack in the vicinity of the extracting device and to bring it into contact with the suction members of extracting device 11.
  • Openings 10 hold the next-following item against the back wall of the housing as soon as extraction of the foremost article begins.
  • FIG. 2 shows the housings back wall 3 with the cutout into which extracting device 11 fits and openings 9 I in the vicinity of cut-out 8 and openings 10 at the opposite edge of the back wall.
  • FIG. 3 is a plan view of the back wall just before extraction of the leading item. It can be seen that this item, both at the front and back edge, is pressed against the backwall 3 because'of openings 9 and 10, but that in the middle between back Wall 3 and the item and at the edges between the first and the 3 second item air cushions have formed that bring about air lubrication.
  • FIG. 4 shows the conditions just after the start of extracting the leading item.
  • the latter is already moving with its leading edge through slot 7, but the excess pressure in the housing causes its front and back edges to be pressed against openings 9 and 10, while the air cushions at the back wall and on the next-following item remain intact.
  • openings 10 are freed through movement of the leading item, the excess pressure in the housing presses the next-following item against those openings. It is thus held fast there, and on the extraction side the air cushion between the leading item and the one behind it keeps the latter 'from reaching slot 7.
  • the third item, controlled by opening 6, keeps a steady distance from item 2 in front of it.
  • a housing having at least a back wall and a pair of side walls, one of said side walls having an opening formed near the junction of said side wall with said back wall for the exit of items extracted from the said stack of items arranged within said housing with the'planes of the items of said stack substantially parallel to the plane of said back Wall, and said back wall having an opening formed therein near said junction of said side wall with said back wall;
  • an extracting device for propelling away from said housing aleading item separated from said stack within said housing, said extracting device including at least one porous endless belt mounted on rotating drums and arranged for motion with one surface of said porous endless belt oriented in said opening in said back wall and substantially in the plane of said back wall;
  • An arrangement in accordance with claim 1 further including additional endless belts arranged on rotating drums with at least one surface of each said additional endless belt having a portion thereof oriented in a plane substantially aligned with the plane of said one surface of said first-mentioned endless belt for receiving from said first-mentioned endless belt a leading item extracted from said stack by said first-mentioned endless belt.
  • said means for directing an airstream comprises a manifold coupled to a source of compressed air and having openings through which said airstream is directed from said manifold in a direction substantially parallel to the plane of said back Wall.
  • ROBERT B REEVES, Primary Examiner.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
US290691A 1962-07-12 1963-06-26 Arrangement for individually extracting flat items from a conveyor system Expired - Lifetime US3253825A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST019476 1962-07-12

Publications (1)

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US3253825A true US3253825A (en) 1966-05-31

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US (1) US3253825A (enrdf_load_stackoverflow)
NL (1) NL295216A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2204537A1 (enrdf_load_stackoverflow) * 1972-10-31 1974-05-24 Schmermund Alfred
FR2521962A1 (fr) * 1982-02-19 1983-08-26 Hotchkiss Brandt Sogeme Depileur d'objets plats tels que les plis postaux
US4787619A (en) * 1986-04-30 1988-11-29 Mathias Bauerle Gmbh Sheet feed bench with blower jets and a method of removing sheets from a stack
DE4328434A1 (de) * 1993-04-07 1994-10-13 Licentia Gmbh Vorrichtung zur Vereinzelung
US5472310A (en) * 1993-04-07 1995-12-05 Licentia Patent-Verwaltungs-Gmbh Separating device
US20110148027A1 (en) * 2009-12-22 2011-06-23 Ricoh Company, Limited Sheet feeding device and image forming apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8900754A (nl) * 1989-03-28 1990-10-16 Oce Nederland Bv Inrichting voor het afvoeren van vellen vanaf de onderzijde van een stapel.
NL9002121A (nl) * 1990-09-28 1992-04-16 Oce Nederland Bv Inrichting voor het afvoeren van vellen vanaf de onderzijde van een stapel.

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1460314A (en) * 1922-05-06 1923-06-26 Deck Bert Separator for feeders
FR985269A (fr) * 1948-04-28 1951-07-17 Neby Treu Unternehmen Appareil automatique pour l'alimentation en feuilles des machines graphiques
US2806696A (en) * 1955-05-17 1957-09-17 Deritend Eng Co Mechanism for feeding cardboard or the like from a pile or stack
US2819075A (en) * 1954-12-20 1958-01-07 Alonzo W Noon Sheet-separating device
US2952457A (en) * 1956-03-08 1960-09-13 Int Standard Electric Corp System for separating and conveying flat articles
US2970834A (en) * 1957-09-06 1961-02-07 Pitney Bowes Inc Letter feeding device
US3079147A (en) * 1960-09-02 1963-02-26 Sperry Rand Corp Sheet feeding
US3099442A (en) * 1961-04-11 1963-07-30 American Can Co Method and apparatus for feeding sheet material
US3105681A (en) * 1960-08-11 1963-10-01 Deritend Eng Co Mechanism for feeding cardboard and like blanks to creasing, slotting, folding or other treating machinery
US3136539A (en) * 1962-12-03 1964-06-09 Lyman Brooks Sheet handling

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1460314A (en) * 1922-05-06 1923-06-26 Deck Bert Separator for feeders
FR985269A (fr) * 1948-04-28 1951-07-17 Neby Treu Unternehmen Appareil automatique pour l'alimentation en feuilles des machines graphiques
US2819075A (en) * 1954-12-20 1958-01-07 Alonzo W Noon Sheet-separating device
US2806696A (en) * 1955-05-17 1957-09-17 Deritend Eng Co Mechanism for feeding cardboard or the like from a pile or stack
US2952457A (en) * 1956-03-08 1960-09-13 Int Standard Electric Corp System for separating and conveying flat articles
US2970834A (en) * 1957-09-06 1961-02-07 Pitney Bowes Inc Letter feeding device
US3105681A (en) * 1960-08-11 1963-10-01 Deritend Eng Co Mechanism for feeding cardboard and like blanks to creasing, slotting, folding or other treating machinery
US3079147A (en) * 1960-09-02 1963-02-26 Sperry Rand Corp Sheet feeding
US3099442A (en) * 1961-04-11 1963-07-30 American Can Co Method and apparatus for feeding sheet material
US3136539A (en) * 1962-12-03 1964-06-09 Lyman Brooks Sheet handling

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2204537A1 (enrdf_load_stackoverflow) * 1972-10-31 1974-05-24 Schmermund Alfred
FR2521962A1 (fr) * 1982-02-19 1983-08-26 Hotchkiss Brandt Sogeme Depileur d'objets plats tels que les plis postaux
EP0087341A3 (en) * 1982-02-19 1985-04-10 Hbs Hotchkiss Brandt Sogeme Unpiling device for flat articles such as mail
US4787619A (en) * 1986-04-30 1988-11-29 Mathias Bauerle Gmbh Sheet feed bench with blower jets and a method of removing sheets from a stack
DE4328434A1 (de) * 1993-04-07 1994-10-13 Licentia Gmbh Vorrichtung zur Vereinzelung
US5472310A (en) * 1993-04-07 1995-12-05 Licentia Patent-Verwaltungs-Gmbh Separating device
US5584649A (en) * 1993-04-07 1996-12-17 Licentia Patent-Verwaltungs-Gmbh Separating device
US20110148027A1 (en) * 2009-12-22 2011-06-23 Ricoh Company, Limited Sheet feeding device and image forming apparatus
CN102120531A (zh) * 2009-12-22 2011-07-13 株式会社理光 进纸设备和图像形成装置
US8177218B2 (en) * 2009-12-22 2012-05-15 Ricoh Company, Limited Sheet feeding device and image forming apparatus

Also Published As

Publication number Publication date
NL295216A (enrdf_load_stackoverflow) 1900-01-01

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