US2792220A - Sheet feeding apparatus - Google Patents

Sheet feeding apparatus Download PDF

Info

Publication number
US2792220A
US2792220A US414102A US41410254A US2792220A US 2792220 A US2792220 A US 2792220A US 414102 A US414102 A US 414102A US 41410254 A US41410254 A US 41410254A US 2792220 A US2792220 A US 2792220A
Authority
US
United States
Prior art keywords
sheet
carriage
platform
magazine
suction device
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
US414102A
Other languages
English (en)
Inventor
Perrin John
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.)
Powers Samas Accounting Machines Ltd
Original Assignee
Powers Samas Accounting Machines Ltd
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 Powers Samas Accounting Machines Ltd filed Critical Powers Samas Accounting Machines Ltd
Application granted granted Critical
Publication of US2792220A publication Critical patent/US2792220A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/085—Suction grippers separating from the bottom of pile
    • B65H3/0858—Suction grippers separating from the bottom of pile this action resulting merely in a curvature of each article being separated
    • B65H3/0866—Suction grippers separating from the bottom of pile this action resulting merely in a curvature of each article being separated the final separation being performed between rollers
    • 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
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/085—Suction grippers separating from the bottom of pile
    • 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
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/085—Suction grippers separating from the bottom of pile
    • B65H3/0858—Suction grippers separating from the bottom of pile this action resulting merely in a curvature of each article being separated
    • 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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/58—Baseboards, masking frames, or other holders for the sensitive material
    • G03B27/585—Handling cut photosensitive sheets
    • G03B27/586—Supply stacks; Peeling off
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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

  • This invention relates to sheet-feeding apparatus and in particular to sheet-feeding apparatus for feeding from a pile individual sheets of paper or similar material either in used or unused condition.
  • apparatus for feeding sheets of paper or similar material from a pile
  • apparatus comprising a magazine having a stop against which are located the leading edges of a pile of sheets and supports to retain the pile in the magazine, co-operating feed rollers to move a sheet away from the magazine, a suction device to co-operate with an end sheet of the pile and to move the sheet to a position at which it can be engaged by said feed rollers, 21 reciprocable carriage to move the suction device between the position at which it first co-operates with a sheet and the position at which it delivers the sheet for engagement by said feed rollers, and means to effect reciprocation of the carriage, wherein at least one friction pad is supported for movement towards and away from the sheet to be engaged by the suction device, and actuating means is operable in timed relation with the reciprocating movements of the carriage to move the pad into engagement with said sheet prior to engagement thereof by the suction device and slightly to move the sheet away from said stop to effect separation of the sheet from the next sheet in the pile preparatory to engagement of
  • Fig. 1 is an end elevation of a sheet feeding apparatus according to the invention
  • Fig. 2 is a side elevation looking in the direction of arrow II, Fig. 1,
  • Fig. 3 is a top plan of Fig. 1 and I Figs. 4 to 7 illustrate diagrammatically the mode of operation of the sheet-feeding apparatus.
  • flhe sheet-feeding apparatus illustrated in the drawings comprises a magazine 1, having stops 2 13.1 the forward -end thereof and a slotted plate or platform 3 an .edge'of which is spaced from the stops and by which' a pile of sheets4, Figs. 4 to 7, is supported within" the magazine.
  • the distance between the stops 2 and the rear wall of the magazine is so selected as to'be greater than that dimension of a sheet which is to be'located between the stops 2- and the rear wall 5, as illustrated in Figs. 4to 7.
  • rollers 7 to raise the rollers 7 to permit the free entry therebetween of the leading end of a sheet by a suction device which partially withdraws the lowermost sheet of a pile from the magazine 1 and delivers it to the rollers 7, 8 so that these rollers, by cooperation, complete the removal of the sheet from the magazine and deliver it to any desired position or to further feed rollers which, in turn, feed the sheet away from the magazine.
  • a suction device which partially withdraws the lowermost sheet of a pile from the magazine 1 and delivers it to the rollers 7, 8 so that these rollers, by cooperation, complete the removal of the sheet from the magazine and deliver it to any desired position or to further feed rollers which, in turn, feed the sheet away from the magazine.
  • the suction device comprises three sucker elements 17, Fig. 3, the suction device being supported by a hollow spindle 13 journalled in bearings 19 pivoted to a carriage 20 disposed beneath the plate 3 and connected with a pair of arms 21 for reciprocating movement towards and away from the rollers 7, 8.
  • the hollow spindle 18 is connected through a valve 22 and tubing 23 with a vacuum tank or pump, not shown, the valve 22 being operated in timed relation with the reciprocating movements of the carriage 20 so that suction is applied to the devices 17 at the appropriate moment when the devices are beneath a sheet in the magazine 1, and is cut off when a sheet has been delivered by the suction device between the feed rollers 7, 8 to be gripped by the rollers thereby to complete the withdrawal of the sheet from the magazine.
  • valve 22 Operation of the valve 22 is effected, in known manner, by a pin 24 carried by the valve and located in a slot 25, Fig. 2, formed in a pivoted link 26 connected to two further links 27, 28 of which the link 28 is pivoted at 29 to one of the frames 6 and is rocked about its pivot by a cam 30, Figs. 1, 2 and 3, movable with the shaft 9.
  • the hollow spindle 13 is rockable about its axis by an arm 31, Fig. 3, having apin 32 projecting therefrom, the pin 32 being operated by a linkage similar to the linkage 26, 27, 28 and a cam 33, Figs. 1 and 4, also secured to the shaft 9.
  • the arms 21 for the carriage 20 are supported for pivotal movement by a spindle 34 supported by brackets 35 mounted on a base plate 36 which also supports the frames 6. Pivotal movement of the arms 21 is effected through cooperation between a roller 37 carried by one of the arms and a cam 38 secured to the shaft 9 for rota- .relationwith the reciprocatory movements of the carriage to cause the carriage to be moved towards and away from the plate 3.
  • the plungers 42 and guide elements 41 carried thereby are supported for vertical reciprocating move- 'ment in guides 44 secured to the frames 6 and the lower ends of the plungers 42 carry lateral pins 45 housed in bearing blocks 46 carried by the ends of rocking arms 47 carried by a tubular member 48 surrounding a pivot rod 49.
  • the member 48 supports an arm 50 whichcarries a roller 51 for co-operation with'a cam 52 secured to shaft 9.
  • cam 33 causes the suction device to be rocked clockwise so that the leading end portion of the lowermost sheet S is drawn downwards at a sharp angle about the leading edge of the plate 3, see Fig. 5, and to a position beyond the plane of the ends 55, Figs. 4 to 7, of the stops 2.
  • the cam 38 now becomes operative to move the carriage 20 forward, that is to the right as viewed in Figs.
  • a sheet feeding device provides means cooperating with a reciprocating suction device arranged to feed sheets from a magazine whereby, before the suction device becomes operative to engage a sheet to be fed thereby, such sheet is separated from the other sheets of the pile preparatory to engagement thereof by the suction device.
  • the up-anddown movement of the friction pads also tends to keep the pile of sheets-in an agitated condition which also assists in ensuring that two sheets donot adhere when suction is applied to a sheet y he.
  • Apparatus for feeding sheets of paper or similar material from the bottom of a pile comprising a magazine, a stop carried by the magazine to locate the leading edges of sheets piled in the magazine, a platform at the bottom of the magazine to support a pile of sheets therein, said platform having its leading edge spaced from said stop and including a slot extending lengthwise thereof between its rear and leading edges, a carriage reciprocable beneath said platform, a suction device movable with said carriage and pivotally mounted thereon to engage a sheet resting on the platform and to move the sheet portion extending beyond the leading edge of the platform downwards about said leading edge while its pivot is located beneath the platform, a friction pad movable into and out of said slot in said platform, and actuating means operable in timed relation with the reeiprocatory movements of the carriage and co-acting with said pad to effect said movements thereof and to cause the paid to move a sheet resting on the platform in a straight line path away from said stop prior to engagement of the sheet by the suction device.
  • Apparatus for feeding sheets of paper or similar material from the bottom of a pile comprising a magazine, a stop carried by the magazine to locate the leading edges of sheets piled in the magazine, a platform at the bottom of the magazine to support a pile of sheets therein, said platform having its leading edge spaced from said stop and including a slot extending lengthwise thereof between its rear and leading edges, a carriage reciprocable beneath said platform, guide elements supporting the carriage for reciprocation, plungers connected with said guide elements and operable in timed relation with the carriage to reciprocate the guide elements towards and away from said platform in a path normal to the path of said carriage, a suction device movable with said carriage and pivotally mounted thereon to engage a sheet resting on the platform and to move the sheet portion extending beyond the leading edge of the platform downwards about said leading edge while its pivot is located beneath the platform, and a friction pad carried by the carriage for movement thereby into said slot in said platform on movement of said guide elements by said plungers during the return movement of the carriage thereby to engage a sheet
  • Apparatus for feeding sheets of paper or similar material from the bottom of a pile comprising a magazine, a stop carried by the magazine to locate the leading edges of sheets piled in the magazine, a platform at the bottom of the magazine to support a pile of sheets therein, said platform having its leading edge spaced from said stop and including a slot extending lengthwise thereof between its rear and leading edges, a carriage reciprocable beneath said platform, a suction device movable with said carriage and pivotally mounted thereon to engage a sheet resting on the platform and to move the sheet portion extending beyond the leading edge of the platform downwards about said leading edge while its pivot is located beneath the platform, a friction pad movable into and out of said slot in said platform, actuating means operable in timed relation with the reciprocatory movements of the carriage and co-acting with said pad to effect said movements thereof and to cause the pad to move a sheet resting on the-platform in a straight line path away from said stop prior to engagement of the sheet by the suction device, cooperating feed rollers to receive from the
  • Apparatus for feeding sheets of paper or similar material from the bottom of a pile comprising a magazine, a stop carried by the magazine to locate the leading edges of sheets piled in the magazine, a platform at the bottom of the magazine to support a pile of sheets therein, said platform having its leading edge spaced from said stop and including a slot extending lengthwise thereof between its rear and leading edges, a carriage reciprocable beneath said platform, guide elements supporting the carriage for reciprocation, plungers connected with said guide elements and operable in timed relation with the carriage to reciprocate the guide elements towards and away from said platform in a path normal to the path of said carriage, a suction device movable with said carriage and pivotally mounted thereon to engage a sheet resting on the platform and to move the sheet portion extending beyond the leading edge of the platform downwards about said leading edge while its pivot is located beneath the platform, a friction pad carried by the carriage for movementthereby into said slot in said platform on movement of said guide elements by said plun-gers during the return movement of the carriage thereby to engage a sheet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US414102A 1953-03-30 1954-03-04 Sheet feeding apparatus Expired - Lifetime US2792220A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8796/53A GB731995A (en) 1953-03-30 1953-03-30 Improvements in or relating to sheet feeding apparatus

Publications (1)

Publication Number Publication Date
US2792220A true US2792220A (en) 1957-05-14

Family

ID=9859414

Family Applications (1)

Application Number Title Priority Date Filing Date
US414102A Expired - Lifetime US2792220A (en) 1953-03-30 1954-03-04 Sheet feeding apparatus

Country Status (3)

Country Link
US (1) US2792220A (de)
DE (1) DE1017183B (de)
GB (1) GB731995A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988356A (en) * 1957-09-09 1961-06-13 Kienzie App G M B H Fa Transporting apparatus for cards
US3202420A (en) * 1963-05-29 1965-08-24 Norman E Dovey Vacuum feeding device
US3490763A (en) * 1967-06-15 1970-01-20 Ibm Mechanism for feeding sheet material
EP0011965B1 (de) * 1978-11-24 1985-06-12 The Mead Corporation Maschine zum Aufrichten von korbartigen Faltschachteln

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5346200A (en) * 1993-03-17 1994-09-13 Ballcorporation Converted container end bag separator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1460336A (en) * 1922-03-09 1923-06-26 Albert P Hart Paper-feeding mechanism for printing presses
US1656406A (en) * 1926-10-05 1928-01-17 L M Studevant Feeding machine
DE679675C (de) * 1936-07-03 1939-08-11 Fischer & Krecke G M B H Anlegevorrichtung fuer mehrwandige Schlaeuche
US2524417A (en) * 1946-03-13 1950-10-03 Unifold Mailing Machines Inc Apparatus for feeding envelopes or the like from a stacked pile

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1123348A (en) * 1912-12-19 1915-01-05 Harris Automatic Press Co Sheet-feeder.
US1235518A (en) * 1915-07-29 1917-07-31 Newspaper Stuffing Machines Company Paper-feeding mechanism.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1460336A (en) * 1922-03-09 1923-06-26 Albert P Hart Paper-feeding mechanism for printing presses
US1656406A (en) * 1926-10-05 1928-01-17 L M Studevant Feeding machine
DE679675C (de) * 1936-07-03 1939-08-11 Fischer & Krecke G M B H Anlegevorrichtung fuer mehrwandige Schlaeuche
US2524417A (en) * 1946-03-13 1950-10-03 Unifold Mailing Machines Inc Apparatus for feeding envelopes or the like from a stacked pile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988356A (en) * 1957-09-09 1961-06-13 Kienzie App G M B H Fa Transporting apparatus for cards
US3202420A (en) * 1963-05-29 1965-08-24 Norman E Dovey Vacuum feeding device
US3490763A (en) * 1967-06-15 1970-01-20 Ibm Mechanism for feeding sheet material
EP0011965B1 (de) * 1978-11-24 1985-06-12 The Mead Corporation Maschine zum Aufrichten von korbartigen Faltschachteln

Also Published As

Publication number Publication date
GB731995A (en) 1955-06-15
DE1017183B (de) 1957-10-10

Similar Documents

Publication Publication Date Title
US3612512A (en) Sheet material feed control apparatus
US2097587A (en) Sheet feeding device
US2792220A (en) Sheet feeding apparatus
US1530209A (en) Apparatus for feeding folded matter into printing machines
US2351367A (en) Sheet feeding mechanism
US2328943A (en) Means for registering sheets
US3566757A (en) Apparatus for making bundles from the stream of printed sheets in rolling press
US2080010A (en) Sheet feeding apparatus for printing machines
US2200409A (en) Sheet feeding mechanism
US2084065A (en) Sheet feeding machine
US1898535A (en) Method of and means for feeding paper sheets
US2108800A (en) Mechanism for controlling the feeding and advancing of blanks
US2439070A (en) Duplicating machine
US1712546A (en) Sheet-feeding mechanism
US2144037A (en) Sheet-feeding mechanism for platen printing presses
US2634125A (en) Apparatus for separating sheets, envelopes, and the like
US2082064A (en) Sheet feeding
US1538184A (en) Sheet-feeding machine
US2243170A (en) Sheet feeder
US1770483A (en) Sheet-feeding mechanism
US2133259A (en) Machine for separating, counting and delivering sheet material
US2348821A (en) Sheet delivery mechanism for printing presses
US1742863A (en) Carton-blank separating and feeding mechanism
US1663815A (en) Delivery mechanism for printing presses
US2849234A (en) Sheet feeding mechanism