DE520229C - Device for lifting individual sheets of paper - Google Patents

Device for lifting individual sheets of paper

Info

Publication number
DE520229C
DE520229C DEG73112D DEG0073112D DE520229C DE 520229 C DE520229 C DE 520229C DE G73112 D DEG73112 D DE G73112D DE G0073112 D DEG0073112 D DE G0073112D DE 520229 C DE520229 C DE 520229C
Authority
DE
Germany
Prior art keywords
paper
stack
roller
individual sheets
suction
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
Application number
DEG73112D
Other languages
German (de)
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.)
Guschky & Toennesmann
Original Assignee
Guschky & Toennesmann
Publication date
Priority to DEG73112D priority Critical patent/DE520229C/en
Application granted granted Critical
Publication of DE520229C publication Critical patent/DE520229C/en
Expired legal-status Critical Current

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
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/10—Suction 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/423—Depiling; Separating articles from a pile
    • B65H2301/4232—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles
    • B65H2301/42324—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles from top of the pile

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Description

Vorrichtung zum Abheben einzelner Papierbogen Saugvorrichtungen für Druckmaschinen, bei welchen eine umlaufende zylindrische Walze an einem stillstehenden Saugrohr im Innern der Walze vorbeistreicht und bei denen durch Öffnungen in der Walze die einzelnen Papierbogen angesaugt werden, sind bekannt. Da die Walze zylindrisch ist, während die Bogen eben aufgestapelt sind, so können Walze und Bogen sich nur in einer ganz schmalen Fläche berühren, und nur durch sehr großen Durchmesser der Walze wird die Gefahr ausgeschlossen, da.ß zwischen Walze und Bogen Luft eindringt und dadurch Versagen der Vorrichtung bewirkt wird.Device for lifting individual sheets of paper Printing machines, in which a rotating cylindrical roller on a stationary one Suction pipe sweeps past inside the roller and where through openings in the Roller the individual sheets of paper are sucked in are known. Because the roller is cylindrical is while the sheets are just stacked, the roller and sheet can only be touch in a very narrow area, and only through the very large diameter of the Roller, the risk of air penetrating between roller and sheet is eliminated and thereby causing failure of the device.

Durch die Erfindung wird diesem Mangel abgeholfen. Der Erfindung gemäß ist die Saugwalze als gleichseitiges Prisma ausgebildet, dessen Seiten mit Saugöffnungen versehen sind. Die einzelnen Seiten sind eben und vermögen sich daher an den Papierstapel innig anzuschmiegen, so daß Hindurchtreten von Luft zwischen Walze und Bogen von vornherein ausgeschlossen ist. Naturgemäß kann bei dieser Form der umlaufenden Walze der Papierstapel nicht unbeweglich bleiben, und der Stapelträger wird daher der Erfindung gemäßzin an sich bekannter Weise durch ein geeignetes Getriebe in der Weise bewegt, daß der Bogenstapel die Saugwalze in dem Augenblick berührt, in welchem die Saugöffnungen gerade dem Stapel gegenüberliegen, die Walzenfläche also mit dem obersten Bogen in derselben Ebene liegt.This deficiency is remedied by the invention. According to the invention the suction roll is designed as an equilateral prism, the sides of which have suction openings are provided. The individual pages are flat and can therefore be attached to the stack of paper to fit closely so that air can pass between the roller and the sheet is excluded from the outset. Naturally, with this form of the rotating roller the stack of paper does not remain immobile, and the stack carrier therefore becomes the Invention according to a known manner by a suitable transmission in the Moved way that the sheet pile touches the suction roll at the moment in which the suction openings are just opposite the stack, i.e. the roller surface with the uppermost arch is in the same plane.

Ein Ausführungsbeispiel der Erfindung ist schematisch in der Zeichnung dargestellt. Oberhalb des Papierstapels a dreht sich die Saugwalze b, die hier als sechsseitiges Prisma ausgebildet ist. Die Saugleitung mündet in den unten mit Öffnungen versehenen feststehenden Zylinder c im Innern der Walze b. Die einzelnen Seiten d der Walze b sind mit Saugöffnungen e versehen und treten in ihrer untersten Stellung den öffnungen des Zylinders c gegenüber. Der Stapelträger a wird durch zwei Exzenter f in einer geschlossenen Irreisbahn bewegt , und die Bewegungen von Saugwalze b und Stapelträger a sind derart, daß bei der höchsten Stellung des Stapel trägers (in der Zeichnung ausgezogen dargestellt) eine Seitenfläche der Saugwalze waagerecht und mit dem obersten Papierbogen in derselben Ebene liegt. Die unterste Stellung des Stapelträgers ist in der Zeichnung gestrichelt dargestellt.An embodiment of the invention is shown schematically in the drawing. Above the paper stack a, the suction roller b rotates, which is designed here as a six-sided prism. The suction line opens into the stationary cylinder c, which is provided with openings at the bottom, in the interior of the roller b. The individual sides d of the roller b are provided with suction openings e and face the openings of the cylinder c in their lowest position. The stack carrier a is moved by two eccentrics f in a closed loop, and the movements of suction roll b and stack carrier a are such that in the highest position of the stack carrier (shown in solid lines in the drawing) a side surface of the suction roll horizontally and with the top one Sheet of paper is in the same plane. The lowest position of the stack carrier is shown in dashed lines in the drawing.

Claims (1)

PATENTANSPRUCH: Vorrichtung zum Abheben einzelner Papierbogen von einem Stapel für Druckmaschinen, dadurch gekennzeichnet, daß die zum Abheben der Papierbogen dienende Saugwalze (b) als gleichseitiges Prisma ausgebildet ist, dessen Seiten (d) mit Saugöffnungen (e) versehen sind, und daß der Stapelträger (a) in an sich bekannter Weise so bewegt wird, daß der Papierstapel die Saugwalze (b) in dem Augenblick berührt, in welchem die ihn berührende Seitenfläche (d) der.Saugwalze (b) mit dem obersten Papierbogen in derselben Ebene liegt.PATENT CLAIM: Device for lifting individual sheets of paper from a stack for printing machines, characterized in that the for lifting the Paper sheet serving suction roll (b) is designed as an equilateral prism whose Sides (d) are provided with suction openings (e), and that the stack carrier (a) in is moved in a known manner so that the stack of paper the suction roll (b) in touches the moment at which the side surface (d) of the suction roll touching it (b) is in the same plane as the top sheet of paper.
DEG73112D Device for lifting individual sheets of paper Expired DE520229C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG73112D DE520229C (en) Device for lifting individual sheets of paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG73112D DE520229C (en) Device for lifting individual sheets of paper

Publications (1)

Publication Number Publication Date
DE520229C true DE520229C (en) 1931-03-09

Family

ID=7135495

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG73112D Expired DE520229C (en) Device for lifting individual sheets of paper

Country Status (1)

Country Link
DE (1) DE520229C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103633A1 (en) * 1982-03-18 1984-03-28 Tekmax Inc Plate feed apparatus.
DE102011120476A1 (en) * 2011-12-08 2013-06-13 Heidelberger Druckmaschinen Aktiengesellschaft Unround suction wheel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103633A1 (en) * 1982-03-18 1984-03-28 Tekmax Inc Plate feed apparatus.
EP0103633A4 (en) * 1982-03-18 1984-07-11 Tekmax Inc Plate feed apparatus.
DE102011120476A1 (en) * 2011-12-08 2013-06-13 Heidelberger Druckmaschinen Aktiengesellschaft Unround suction wheel
US8657279B2 (en) 2011-12-08 2014-02-25 Heidelberger Druckmaschinen Ag Non-circular suction wheel and sheet feeder

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