US3241831A - Method and device for automatic feeding of single sheets of paper or the like - Google Patents

Method and device for automatic feeding of single sheets of paper or the like Download PDF

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Publication number
US3241831A
US3241831A US314263A US31426363A US3241831A US 3241831 A US3241831 A US 3241831A US 314263 A US314263 A US 314263A US 31426363 A US31426363 A US 31426363A US 3241831 A US3241831 A US 3241831A
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US
United States
Prior art keywords
sheet
bulge
stop
feeding
paper
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
US314263A
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English (en)
Inventor
Sven A Axlid
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.)
Ormig Organisations Mittel G M
Ormig Organisations-Mittel G M B H
Original Assignee
Ormig Organisations Mittel G M
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 Ormig Organisations Mittel G M filed Critical Ormig Organisations Mittel G M
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Publication of US3241831A publication Critical patent/US3241831A/en
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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
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/20—Assisting by photoelectric, sonic, or pneumatic indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/18—Registering sheets, blanks, or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
    • B65H7/08—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to incorrect front register
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/14—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors by photoelectric feelers or detectors

Definitions

  • An object of the invention is to provide a method and a device for automatically feeding each sheet with its foremost edge to an exactly determined position at an operating station located after the sheet feeding device.
  • an operating station can, for example, be incorporated in a packaging machine where the sheet fed has to be advanced onward, for example, to a folding station into an exactly determined position.
  • the operating station can also be incorporated in a rotary duplicator whereby each sheet is automatically fed by the sheet feeding device to the printing cylinder of the duplicator with the front edge of the sheet in exactly predetermined position relative to the printing mold fixed to the printing cylinder, whereby each text line on the printing mold will be transmitted to the sheet, which can consist of a preprinted blank, in precisely correct position.
  • This invention can be applied wherever it is necessary that a sheet be fed into an exactly predetermined position.
  • the method according to the invention is characterized in that an edge of the sheet is advanced against the stop in such way that a bulge or wave is formed in the sheet which is sensed by a sensing device giving a signal which indicates that the edge positively lies against the stop.
  • the apparatus according to the invention is provided with a sheet feeding mechanism which catches the sheet and automatically feeds it when the front edge of the sheet has been advanced to lie close against a stop, and includes a sensing device which is operated by a bulge formed in the sheet when the front edge of the sheet has come to lie against the stop and the rest of the sheet has been fed further toward the stop, which sensing device controls driving means for the sheet feeding device so that the sheet feeding device catches and feeds the sheet when the bulge has been formed and its existence sensed.
  • the sheet feeding means will only operate and feed the sheet to the operating station when the sheet with its front edge has been effectively advanced against the stop.
  • FIGURE 1 shows, diagrammatically, a perspective view of the essential parts of the apparatus according to the invention and,
  • FIGURE 2 is a diagramamtic elevation of a slightly modified embodiment illustrating how a beam of light is positioned relative to a sheet which has been advanced so far on the table that a bulge has been formed in the sheet and intercepted by the light beam.
  • reference numeral 1 designates a first sheet feeding roller and numeral 2 a second sheet feeding roller in contact with roller 1.
  • the rollers 1 and 2 are assumed to represent sheet feeding rollers of a rotary duplicator, and a sheet 4, fed over the table 3 of the duplicator, is fed by said rollers, after having been advanced sufiiciently manually against the stop formed by the contact line between the rollers 1 and 2, towards a printing station of the duplicator, not shown, where the text on a printing mold foil entirely or partly is applied to the sheet 4 in an exactly predetermined position.
  • FIGURE 1 only the roller 1 is shown to be driven by a continuously operating motor 5 and the shaft 6 of the roller 1 is connectable with the motor shaft 7 by an electromagnetically controlled clutch 8 which is controlled from an electric photocell 9 through a cable 15.
  • a source of light 10 cooperates with the photocell 9.
  • the source of light 10 emits a light beam 11 over the table 3 and as long as the sheet remains flat or only slightly bulged on the table the light beam 11 will impinge on the photocell 9 indicating that the sheet 4 has not been pressed sufiiciently against the stop formed by the contact line between the two rollers 1 and 2.
  • the sheet 4 which is assumed to be introduced by hand against the stop, but which evidently also can be fed by a special feeding de-.
  • the sheet has been advanced sufficiently and can be fed to the printing station, not shown here.
  • the formed bulge 12 will interrupt the light beam 11, as best seen in FIGURE 2, and then the photocell 9 will no longer be activated.
  • the photocell 9 emits a signal through cable 15 to the electromagnetically controlled clutch and causes operation of the coupling 8 and the roller 1 starts to rotate and, in cooperation with the roller 2, feeds the sheet 4 with the leading edge to the exact position necessary for transferring the print in the correct position on the sheet 4 from the printing mold, not shown.
  • a check that the sheet 4 is laterally in the right position, that is, close to the guide rail 13 or otherwise only moved from same within admitted tolerances can also be obtained with the aid of the photocell shown and the light source 10.
  • the angle between the plane of the table 3 and the light beam 11 is made as large as possible whereby even a relatively slight lateral displacement will prevent the bulge 12 from interrupting the light beam 11.
  • the distance of the bulge 12 from the plane of the table 3 is then restricted by a light transmitting plate 14 or the like placed above the table which is indicated by dashed lines in FIGURE 2 whereby the maximum height of the bulge and thus the maximum admitted lateral displacement of the sheet can be very exactly determined.
  • the invention is not restricted to the embodiment shown where the stop for the leading edge of the sheet is formed by two feeding rollers and the feeding of the sheets is brought about by means of a clutch.
  • the stop can, of course, for example, consist of an arresting means which in known manner is arranged between two spaced rollers which when the leading edge of the sheet has advanced to proper position and the bulge 12 has been formed move against each other and catch and feed the sheet at the same time as the arresting device is withdrawn.
  • the photocell will control a mechanism for moving the rollers into sheet gripping position.
  • Other means, known per se, for feeding or pulling the sheet may also be utilized.
  • the statement that the light beam 11 is directed across the feeding direction of the sheet 4 does not mean that the projection of the light beam on the flat sheet is perpendicular to the feeding direction, but that the angle between the feeding direction and said projection can vary within wide limits.
  • the shown sensing device 9, 10 can in some cases be replaced by a considerably simpler, but not so sensitive sensing device which consists of a switch, not shown,
  • the contact arm is placed above the table 3 and at such a distance from the table that the arm, when proper height of the bulge has been attained, is moved upwards and operates an electric circuit to the shown clutch 8 or another driving device.
  • Method of predetermining the position in which one edge of a sheet of paper or similar flexible material will lie against a stop to determine the position of the whole sheet in one direction comprising advancing said sheet until the leading edge thereof engages a stop, continuing the advance of the rest of said sheet to cause it to form a bulge, sensing the existence of said bulge at a predetermined degree of bulge, generating a signal in response to the sensing of said bulge indicating that the said edge of said sheet has positively engaged the stop.
  • Apparatus for predetermining the position of a sheet of flexible material to be fed to an exact position by a feeding mechanism comprising means forming a path in which said sheet moves, a stop for engagement by the leading edge of a sheet of said material being fed in said path to detain said leading edge, whereby said sheet bulges upon the remainder thereof being fed further, a sensing device for sensing the existence of said bulge, a sheet feeding apparatus having a driving means, control means for said driving means, said sensing means having means for controlling said drive control means to operate said feeding means when the bulge of the sheet has been sensed by said sensing means.
  • said sensing device comprises a photodetector and a light source, said photodetector being positioned to sense a light beam emitted by said light source and sent above said sheet when flat, laterally across the direction of feed of the sheet obliquely to the sheet plane.
  • said sheet feeding apparatus comprises a pair of parallel rollers in contact with each other, a source of drive, said control means for said driving means comprising a magnetic clutch, connected for operation under the control of said sensing means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Registering Or Overturning Sheets (AREA)
US314263A 1962-11-01 1963-10-07 Method and device for automatic feeding of single sheets of paper or the like Expired - Lifetime US3241831A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1173262 1962-11-01

Publications (1)

Publication Number Publication Date
US3241831A true US3241831A (en) 1966-03-22

Family

ID=20294515

Family Applications (1)

Application Number Title Priority Date Filing Date
US314263A Expired - Lifetime US3241831A (en) 1962-11-01 1963-10-07 Method and device for automatic feeding of single sheets of paper or the like

Country Status (3)

Country Link
US (1) US3241831A (en:Method)
BE (1) BE650568A (en:Method)
GB (1) GB982283A (en:Method)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650526A (en) * 1970-01-20 1972-03-21 Herman J Schultz Apparatus for feeding paper booklets and the like
US3863913A (en) * 1972-10-25 1975-02-04 Ricoh Kk Apparatus for conveying sheets
US3877804A (en) * 1973-11-02 1975-04-15 Xerox Corp Corner registration device for document feeder
US3948170A (en) * 1972-05-25 1976-04-06 Sylve Jack Donald Ericsson Arrangement in silkscreen printing machine
US4058305A (en) * 1975-09-25 1977-11-15 Rank Xerox Ltd. Paper feeding device
US4101018A (en) * 1975-08-22 1978-07-18 Teletype Corporation Paper edge sensor
US4135808A (en) * 1976-11-26 1979-01-23 Pitney-Bowes, Inc. Document feeder for a copier
US4203590A (en) * 1978-01-09 1980-05-20 Levi Strauss & Co. Gripper belt transfer
US4685664A (en) * 1982-06-19 1987-08-11 Canon Kabushiki Kaisha Sheet copying device
CN111907221A (zh) * 2020-08-13 2020-11-10 福建星谷信息科技有限公司 热敏标签纸首页定位控制装置及控制方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126126B (en) * 1982-08-27 1986-07-02 Ofshred Limited Shredding machine
JPH0262348A (ja) * 1988-08-30 1990-03-02 Mutoh Ind Ltd 給紙装置における用紙蛇行送り自動修正機構

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525311A (en) * 1946-02-18 1950-10-10 Miehle Printing Press & Mfg Method for controlling the height of a pile of delivered sheets
US3153483A (en) * 1961-12-11 1964-10-20 Universal Match Corp Feeding mechanism for documents and the like

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525311A (en) * 1946-02-18 1950-10-10 Miehle Printing Press & Mfg Method for controlling the height of a pile of delivered sheets
US3153483A (en) * 1961-12-11 1964-10-20 Universal Match Corp Feeding mechanism for documents and the like

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650526A (en) * 1970-01-20 1972-03-21 Herman J Schultz Apparatus for feeding paper booklets and the like
US3948170A (en) * 1972-05-25 1976-04-06 Sylve Jack Donald Ericsson Arrangement in silkscreen printing machine
US3863913A (en) * 1972-10-25 1975-02-04 Ricoh Kk Apparatus for conveying sheets
US3877804A (en) * 1973-11-02 1975-04-15 Xerox Corp Corner registration device for document feeder
US4101018A (en) * 1975-08-22 1978-07-18 Teletype Corporation Paper edge sensor
US4058305A (en) * 1975-09-25 1977-11-15 Rank Xerox Ltd. Paper feeding device
US4135808A (en) * 1976-11-26 1979-01-23 Pitney-Bowes, Inc. Document feeder for a copier
US4203590A (en) * 1978-01-09 1980-05-20 Levi Strauss & Co. Gripper belt transfer
US4685664A (en) * 1982-06-19 1987-08-11 Canon Kabushiki Kaisha Sheet copying device
CN111907221A (zh) * 2020-08-13 2020-11-10 福建星谷信息科技有限公司 热敏标签纸首页定位控制装置及控制方法
CN111907221B (zh) * 2020-08-13 2021-07-02 福建星谷信息科技有限公司 热敏标签纸首页定位控制装置及控制方法

Also Published As

Publication number Publication date
BE650568A (en:Method) 1964-11-03
GB982283A (en) 1965-02-03

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