IL47478A - Mechanism for feeding and separating sheets - Google Patents

Mechanism for feeding and separating sheets

Info

Publication number
IL47478A
IL47478A IL47478A IL4747873A IL47478A IL 47478 A IL47478 A IL 47478A IL 47478 A IL47478 A IL 47478A IL 4747873 A IL4747873 A IL 4747873A IL 47478 A IL47478 A IL 47478A
Authority
IL
Israel
Prior art keywords
stripper
drive
rollers
sheets
roller
Prior art date
Application number
IL47478A
Original Assignee
Pennsylvania Res Ass Inc
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 Pennsylvania Res Ass Inc filed Critical Pennsylvania Res Ass Inc
Publication of IL47478A publication Critical patent/IL47478A/en

Links

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
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/52—Friction retainers acting on under or rear side of article being separated
    • B65H3/5246—Driven retainers, i.e. the motion thereof being provided by a dedicated drive
    • B65H3/5276—Driven retainers, i.e. the motion thereof being provided by a dedicated drive the retainers positioned over articles separated from the bottom of the pile
    • B65H3/5284—Retainers of the roller type, e.g. rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/08—Ducts, containers, supply or metering devices with ink ejecting means, e.g. pumps, nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
    • B65H1/06—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile for separation from 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/70—Article bending or stiffening arrangements
    • 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
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/063—Rollers or like rotary separators 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
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • 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
    • B65H3/60—Loosening articles in piles
    • B65H3/62—Loosening articles in piles by swinging, agitating, or knocking the pile
    • 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
    • G06K13/16—Handling flexible sheets, e.g. cheques
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M7/00—Counting of objects carried by a conveyor
    • G06M7/02—Counting of objects carried by a conveyor wherein objects ahead of the sensing element are separated to produce a distinct gap between successive objects
    • G06M7/06—Counting of flat articles, e.g. of sheets of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1912—Banknotes, bills and cheques or the like

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)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Pile Receivers (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Claims (9)

1. ■-v. eliminating the necessity for the provision of a doubles detector and other associated circuitry; and g) the apparatus will not mutilate, bend or curl the sheets during any phase of the feeding* separating and stacking operations and the apparatus is virtually "jam-free" throughout the entire operation* h) stock may be fed from either a bottom load or a top load input hopper. ^HAT IS CLAIMED IS: 1. Apparatus for advancing sheets from a stack to an outfeed location whereby said sheets are delivered to said outfeed location in sequential fashion whereby the trailing edge of the sheet last advanced to the outfeed location is separated from the leading edge of the next sheet to be delivered to said outfeed location by at least a small distance^ said apparatus comprising t an infeed hopper for supporting a plurality of sheets generally arranged in a stack} said hopper having an outfeed passageway at one end thereof through which at least the bottom sheet may pass; the base of said hopper having an opening; means protruding at least partially through said opening for intermittently advancing at least the bottom sheet of said stack toward said outfeed passageway; continuously rotating drive means positioned adjacent said outfeed passageway for slidably engaging the bottom sheet in said stack and advancing at least the bottom sheet or bottom-most sheets fed thereto toward said outfeed location; said apparatus being characterized by continuously rotating stripper means positioned adjacent said outfced passageway and said drive means and rotating in a direction opposite said drive means for permitting only a single sheet passing between said stripper means and said drive means to be advanced toward said outfeed location; OO, said stripper means and said drive means being adapted to cooperatively cause the sheet or sheets fed therebetween to assume undulating shape in a direction transverse to the forward feed direction of said sheets to stiffen said sheet or sheets and thereby facilitate the respective driving and stripping functions of said driving means and stripping means whereby only the sheet fed toward said outfeed location is the sheet which makes sliding engagement with said drive means and regardless of that fact, that only a single sheet may pass between •έ said drive means and s&ripper means.
2. The apparatus of claim 1 wherein said drive means and said stripper means are characterized by including at least one annular shaped roller, said rollers having surfaces along their annular peripheries of differing coefficients of friction with the coefficient ©f friction of said drive means roller being greater than the coefficient of friction of said stripper means roller; said rollers being offset relative to one another in the direction transverse to the feed direction and the distance between the centers of rotation of said rollers being separated by a distance which is less than the sum of their respective radii.
3. The apparatus of claim 2 being characterized in that the near edges of said drive and stripper rollers which- are closest to one another are closely spaced to pinch the sheets or sheets passing through said drive means and stripper means between said closely spaced peripheral edges to enhance the driving and stripping operations.
4. The apparatus of claim 1 wherein said drive means is characterized by being so positioned to make slidin eaid first sheet regardless of whether one or more sheets of said stack are advanced toward said stripper means and drive means.
5. The apparatus of claim 1 characterized in that at least the peripheral portions of said drive means roller and said stripper means roller are formed of materials of differing durometer with the durometer of said drive means roller material being greater than the durometer of the remaining roller*
6. The apparatus ofclaim 1 wherein the stripper means roller is characterized by being provided with a convex periphery which is curved in a direction lateral to the movement of said sheets* 7· The apparatus of claim 1 wherein the drive means roller is characterized by being provided with a convex periphery which is curved in a direction lateral to the movement of said sheets* 8. The apparatus of claim 1 further characterized by means of pivotally suspending said stripper means roller, said suspending means being adapted to bias said stripper means roller toward said drive means. 9. The apparatus of claim 1 being firther characterized by comprising deflecting means positioned between said drive means and said outfeed location for substantially simultaneously deflecting each sheet leaving said drive means toward said outfeed location and for realigning those sheets striking said deflection means which are advanced in as¾¾wed manner. 10· The apparatus of claim 1 being further characterized by accelerating means poeltloned between said drive means and said outfeed location and Including continuously rotating pairs of cooperating rollers for receivin a sheet delivered thereto by said drive means and advancing the sheet toward said outfeed location at an increased velocity to form a finite gap between the separated sheets* 11. The apparatus of claim 10 wherein the accelerating means is preferably positioned at a predetermined distance from said drive means· wherein said predetermined distance is characterized by being less than the length of the shortest document accepted by said apparatus* with said length measured in the direction of movement, to cause engagement)e*ween a sheet delivered from said drive means and said accelerating means cooperating rollers before said sheet is disengaged by said drive means* 12* The apparatus of claim 10 wherein one of said cooperating rollers is characterized as being an idler roller; means for rotating the remaining cooperating roller at a rotational speed characterized as being greater than the rotational speed of said drive meajjfcs roller* 19· The apparatus of claim 1 wherein drive means is characterized by comprising at least one drive roller having an annular concave groove around its periphery; said stripper means comprising at least one roller having a curved convex periphery and being positioned at least partially within the groove formed in said drive roller whereby the distance between the centers of said drive and stripper rollers Is less than the sum of the outer diameters of said drive and stripper rollers* Ik. The apparatus of claim 1 wherein drive means is characterized by comprising at least one drive roller having a plurality of annular concave grooves around its periphery; said stripper means comprising at least two rollers having curved convex peripheries separated by a central gap, each of said peripheries being positioned at least partially within associated grooves of said drive roller whereby the distance between the centers of said drive and stripper rollers is less than the sum of the outer diameters of said drive and stripper rollers* 15· The apparatus of claim 2 wherein each of said drive and stripper rollers are respectively mounted upon drive and stripper shafts} said rollers being characterized by being adjustably positioned along their associated shafts to accommodate sheets of varying thicknesses and to allow for adjustment of said rollers to compensate for xumnal wearing thereof. 16. The apparatus of claim 2 wherein the stripper means is characterized by means of pivotally mounting the stripper roller} the angle formed between said mounting means and an horizontal plane being chosen to prevent bouncing of said stripper wheels and prevent wedging of sheets between said stripper and drive rollers* 17* The apparatus of claim 2 wherein the stripper means is further characterized by means for pivotally mounting said stripper roller} said drive and stripper rollers being respectively mounted upon drive and stripper shafts; said stripper roller mounting being adapted to support said stripper shaft? stripper and drive pulleys being respectively mounted upon said stripper and drive shafys; means for rotating one of said shafts; resilient belt means being entrained about said drive and stripper pulleys for imparting rotation to the remaining one of said shafts and for urging said shafts toward one another* 18· The apparatus of claim 10 being farther characterized by comprising single power drive means; means coupled between said power drive means and said accelerating means for rotating said acoelerating means; dutch means coupled between said accelerating means and said drive means for selectively rotating said drive means when said clutch means is engaged; means coupling said drive means to said stripper means for rotating said stripper means when said clutch means is engaged. 19· The apparatus of claim 18 being further characterized by brake means coupled to said stripper means and being energized to brake said stripper means and said drive means when said clutch means is disengaged* 20* The apparatua of claim 19 being further characterized by means of sensing the gap between the trailing edge of a document being advanved by said acceleration means and leading edge of the next document being advanced toward said acceleration means for generating a pulse; means for counting said pulses; * ft. i " settable means coupled to said counter for engaging said clutch and energizing said brake means when said count advances to the setting (n) of said settable means to slow the movement of the (n+l) document toward said acceleration means while permitting the neth document to reach said stacker* 21. The apparatus of claim 19 being further characterized by means for sensing the gap between the trailing edge of a document being advanced by said acceleration means and leading edge of the next document being advanced toward said acceleration means for generating a pulse; means for counting said pules; settabl 23. The apparatus of claim 22 wherein said stripper means is further characterized by comprising means for urging said stripper means roller toward said drive means. 2h, The apparatus of claim 1, wherein said 4rive and stripper means are characterΛizedA in that they each have rollers arranged in staggered fashion and with the drive rollers peripheries extending beyond the strip roller to cause said sheets fed therebetween to assume an undulating configuration for stiffening said sheets as they pass through said drive means and stripper means; means for rotating said stripper means rollers and said drive means rollers in oppoiite directions to cause said stripper means rollers to tend to urge sheets in the reverse direction; the peripheral surfaces of said drive means rollers having a higher coefiicient of friction than those of the stripper means rollers to cause single sheets passing between said drive and stripper means to be fed in the forward feed direction while multiple sheets passing between said drive and stripper means are caused to be stripped by said stripper means to cause the sheets between the drive and stripper means to be advanced to said outfeed location in the order of their relative position to the drive means with the sheetbclosest to the drive means being the first to be advanced to the outfeed location. 25. The apparatus of claim 35 wherein said stripper means is further characterized by including swingable support means pivoted at a first end thereof and having means at the opposite end for rotatably mounting said stripper means rollers to enable said stripper means rollers to "gloat" relative to said drive means. 26. The apparatus of claim 25 wherein said drive means is further characterized by being comprised of means for driving said stripper means rollers without interfering with the "floating" mounting of said stripper means rollers. 2
7. The apparatus of claim 26 wherein both the pivot point and center of rotation of said stripper means rollers are characterized by being located on one side of the plane of movement of said sheets to eliminate "bounding" of said stripper means rollerd. 2
8. The apparatus of claim 2 wherein the support means is characterized by being aligned relative to the plane of movement of the sheets so that an imaginary straight line between said pivot point and the center of rotation of said stripper means rollers forms an angle ofgreater than 0° and less than 90° with the plane of movement of said sheets. 2
9. The apparatus of claim wherein said stripper and drive means are characterized An that each have at least two rollers; said rollers being positioned so that the near edges of adjacent drive and stripper means rollers pinch a sheet as it passes therebetween so that each sheet is "pinched" in a minimum of two locations whereby said pinching action promotes the undulated configuration which a sheet assumes and further facilitates both the "stripping" and feeding operations. Att o rne y s f o r A p p l i c a n t
IL47478A 1972-02-22 1973-01-31 Mechanism for feeding and separating sheets IL47478A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22784772A 1972-02-22 1972-02-22

Publications (1)

Publication Number Publication Date
IL47478A true IL47478A (en) 1976-12-31

Family

ID=22854714

Family Applications (2)

Application Number Title Priority Date Filing Date
IL41445A IL41445A (en) 1972-02-22 1973-01-31 Mechanism for feeding,separating and stacking sheets
IL47478A IL47478A (en) 1972-02-22 1973-01-31 Mechanism for feeding and separating sheets

Family Applications Before (1)

Application Number Title Priority Date Filing Date
IL41445A IL41445A (en) 1972-02-22 1973-01-31 Mechanism for feeding,separating and stacking sheets

Country Status (15)

Country Link
US (2) US3771783A (en)
JP (6) JPS5540505B2 (en)
AU (1) AU5182773A (en)
BE (1) BE795343A (en)
CA (2) CA976572A (en)
CH (1) CH554283A (en)
DE (1) DE2308794C3 (en)
DK (3) DK145455C (en)
FR (1) FR2177747B1 (en)
GB (2) GB1413605A (en)
IL (2) IL41445A (en)
IT (1) IT979309B (en)
NL (1) NL7302393A (en)
SE (3) SE392049B (en)
SU (1) SU637073A3 (en)

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Also Published As

Publication number Publication date
CH554283A (en) 1974-09-30
JPS4894164A (en) 1973-12-04
AU5182773A (en) 1974-10-17
BE795343A (en) 1973-05-29
DE2308794C3 (en) 1982-02-04
SE417022B (en) 1981-02-16
SU637073A3 (en) 1978-12-05
DE2308794B2 (en) 1981-06-19
JPS5526191A (en) 1980-02-25
CA976572A (en) 1975-10-21
DK145455C (en) 1983-04-18
US3771783A (en) 1973-11-13
IT979309B (en) 1974-09-30
SE392049B (en) 1977-03-14
DE2308794A1 (en) 1973-08-30
DK68877A (en) 1977-02-17
SE417081B (en) 1981-02-23
SE7700911L (en) 1977-01-28
FR2177747B1 (en) 1974-07-26
DK145455B (en) 1982-11-22
JPS5540505B2 (en) 1980-10-18
FR2177747A1 (en) 1973-11-09
CA992111A (en) 1976-06-29
GB1413605A (en) 1975-11-12
NL7302393A (en) 1973-08-24
JPS5453468A (en) 1979-04-26
JPS5680330U (en) 1981-06-29
JPS5741854U (en) 1982-03-06
GB1413604A (en) 1975-11-12
SE7600464L (en) 1976-01-19
JPS5526192A (en) 1980-02-25
DK68977A (en) 1977-02-17
JPS602115Y2 (en) 1985-01-21
US3857559A (en) 1974-12-31
IL41445A0 (en) 1973-03-30
IL41445A (en) 1976-02-29

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