DE73864C - Clamping device on drawing presses for cardboard, sheet metal and the like - Google Patents

Clamping device on drawing presses for cardboard, sheet metal and the like

Info

Publication number
DE73864C
DE73864C DENDAT73864D DE73864DA DE73864C DE 73864 C DE73864 C DE 73864C DE NDAT73864 D DENDAT73864 D DE NDAT73864D DE 73864D A DE73864D A DE 73864DA DE 73864 C DE73864 C DE 73864C
Authority
DE
Germany
Prior art keywords
cardboard
sheet metal
clamping device
drawing presses
rollers
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
DENDAT73864D
Other languages
German (de)
Original Assignee
Firma MASCHINEN-CARTONNAGEN A.-G. in Hamburg
Publication date
Application granted granted Critical
Publication of DE73864C publication Critical patent/DE73864C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/59—Shaping sheet material under pressure
    • B31B50/592—Shaping sheet material under pressure using punches or dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents

Landscapes

  • Making Paper Articles (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die neue Vorrichtung an Ziehpressen für Pappe, Blech u. dergl. zur Herstellung von Schachteln, Dosen und anderen Hohlkörpern dient dazu, die zu ziehenden Stoffplatten einzuspannen und deren Nachlassen unter möglichst geringer Reibung zu bewirken. Zu diesem Zweck ist ein doppelter Kranz drehbarer Rollen an Stelle der sonst gebräuchlichen Einspannplatten angeordnet, zwischen denen der zu ziehende Stoff eingespannt wird. Bei Material mit sehr glatter Oberfläche können, um ein zu leichtes Nachgeben zu verhindern, in Verbindung mit dem Doppelrollenkranz ein oder mehrere Spannringe von geringer Breite eingelegt werden. Bei gröfseren Platten empfiehlt es sich, mehrere Rollenkränze hinter einander anzuordnen, wobei die Rollen wechselweise gestellt werden können, damit diejenigen des einen Kranzes in die Zwischenräume der Rollen des anderen Kranzes eingreifen können.The new device on drawing presses for cardboard, sheet metal and the like for the production of Boxes, cans and other hollow bodies are used to clamp the sheets of fabric to be drawn and to cause them to subside with as little friction as possible. To this The purpose is a double ring of rotatable rollers in place of the otherwise common clamping plates arranged, between which the fabric to be drawn is clamped. In the case of material with a very smooth surface, you can use a to prevent slight yielding, in connection with the double roller cage one or more Tension rings of small width are inserted. For larger panels, it is advisable to use several To arrange roller and cage assemblies behind one another, the roles being placed alternately can so that those of one wreath into the spaces between the roles of the other Wreath can intervene.

An dem die Matrize b umgebenden Untertheil α sind Arme c angebracht, welche an ihren oberen Enden die Rollen d des einen Kranzes tragen, während an der den Stempel e umgebenden, durch Hebelwerk y verschiebbaren Hülse g nach unten gerichtete Halter h mit Rollen d1 angebracht sind. Um diesen Doppelrollenkranz kann noch ein zweiter, dritter u. s. w. angeordnet werden. Die Spannringe i lassen sich vor oder hinter oder zu beiden Seiten der Rollen einlegen. Zieht der niedergehende Stempel e den Stoff in die Höhlung des Untertheiles a, so erlauben die Rollen dd1 ohne oder in Verbindung mit den Spannringen i nur ein ganz gleichmäfsiges Nachlassen der Platte p, da sie dieselbe auf ihrem ganzen Umfang gleichmäfsig halten.On the lower part α surrounding the die b , arms c are attached, which at their upper ends carry the rollers d of one ring, while the holder h with rollers d 1 is attached to the sleeve g which surrounds the punch e and is displaceable by lever mechanism y are. A second, third, etc. can be arranged around this double roller cage. The clamping rings i can be inserted in front of or behind or on both sides of the rollers. If the descending punch e pulls the material into the cavity of the lower part a, the rollers dd 1 without or in conjunction with the clamping rings i allow only a very even release of the plate p, since they hold it evenly over its entire circumference.

Die Rollen werden durch die Bewegung der Platte veranlafst, sich zu drehen, und üben deshalb nur eine geringe Reibung auf einer sehr kleinen, immer wechselnden Fläche der Platte ρ aus. Selbst Material von geringer Zugfestigkeit, wie z. B. Holzpappe, kann auf diese Weise in der Ziehpresse bearbeitet werden. An Stelle der Rollen können auch bewegliche Theile in Form von Kreisausschnitten treten, da bei kurzem Weg der volle Kreisumfang der Rollen nicht in Anspruch genommen wird.The rollers are caused to rotate by the movement of the plate and therefore only exert a small amount of friction on a very small, constantly changing surface of the plate ρ . Even material of low tensile strength, such as. B. wooden board, can be processed in this way in the drawing press. In place of the rollers, movable parts in the form of sections of a circle can also be used, since the full circumference of the rollers is not used if the path is short.

Claims (1)

Patent-Anspruch:Patent claim: An Ziehpressen für Pappe, Blech u. dergl. zur Herstellung von Schachteln und anderen Hohlkörpern eine Einspannvorrichtung für die zu ziehenden Platten, bestehend aus einem oder mehreren Doppelkränzen von Rollen oder Kreisausschnitten ohne oder in Verbindung mit Spannringen, um das Festhalten und Nachlassen des zu ziehenden Stoffes unter möglichst geringer Reibung zu bewirken.On drawing presses for cardboard, sheet metal and the like for the production of boxes and others Hollow bodies a clamping device for the plates to be drawn, consisting of a or several double wreaths of roles or sections of a circle without or in connection with Tension rings to hold on and release the fabric to be pulled under as much as possible to cause low friction. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT73864D Clamping device on drawing presses for cardboard, sheet metal and the like Expired DE73864C (en)

Publications (1)

Publication Number Publication Date
DE73864C true DE73864C (en) 1900-01-01

Family

ID=346962

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT73864D Expired DE73864C (en) Clamping device on drawing presses for cardboard, sheet metal and the like

Country Status (1)

Country Link
DE (1) DE73864C (en)

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