DE395877C - Punching device for film perforating machines - Google Patents

Punching device for film perforating machines

Info

Publication number
DE395877C
DE395877C DEK86491D DEK0086491D DE395877C DE 395877 C DE395877 C DE 395877C DE K86491 D DEK86491 D DE K86491D DE K0086491 D DEK0086491 D DE K0086491D DE 395877 C DE395877 C DE 395877C
Authority
DE
Germany
Prior art keywords
film
punching device
perforating machines
film perforating
punch
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
DEK86491D
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.)
ANDREAS MARJAI
LADISLAUS KERESZTESSY
Original Assignee
ANDREAS MARJAI
LADISLAUS KERESZTESSY
Publication date
Priority to DEK86491D priority Critical patent/DE395877C/en
Application granted granted Critical
Publication of DE395877C publication Critical patent/DE395877C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/0007—Perforation of photographic films

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Details Of Cutting Devices (AREA)

Description

Ausstanzvorrichtung für Filmperforiermaschinen. Für diese Anmeldung ist gemäß dem Unionsvertrage vom z. Juni igi i die Priorität auf Grund der Anmeldung in Ungarn vom 2o. April 1922 beansprucht. Bei Perforiervorrichtungen war es bisher ein großer Übelstand, daß die Schichtseite des zu perforierenden Films durch den beim Stanzen entstehenden Bruchstaub zerkratzt wurde. Damit die Stanze nach dem Eindringen wieder rasch aus denn Film gezogen werden konnte, mußte letzteres in senkrechter Richtung eng zwischen zwei Platten geführt sein; zwischen diese Platten und den Film setzte sich der an den Stanzrändern entstehende harte Bruchstaub und ritzte beim Weiterziehen des Bandes Über die ruhenden Platten die Bildschicht ein.Punching device for film perforating machines. For this registration is according to the Union Treaty of z. June igi i the priority based on registration in Hungary from 2o. Claimed April 1922. So far it has been with perforators a great disadvantage that the layer side of the film to be perforated through the The broken dust generated during punching was scratched. So that the punch after the Penetration again quickly from because the film could be pulled, the latter had to be in be guided closely between two plates in the vertical direction; between these plates and the hard break dust formed at the punched edges settled on the film and scratched the image layer as the tape was pulled over the resting plates.

Die vorliegende, in der Zeichnung beispielsweise wiedergegebene Neuerung beseitigt diesen Übelstand dadurch, daß rings um die Stanze 3 ein Luftstrom geblasen wird, welcher die doppelte Aufgabe hat, erstens die obere Führungsplatte zu ersetzen, indem der Film so vermittels des Luftdruckes fest auf die untere Platte gepreßt wird, und zweitens, den Bruchstaub sofort nach Entstehen durch Wegblasen zu entfernen. In dem den Stanzstift 3 aufnehmenden, Stößel 4.5 ist ein Luftkanal D vorgesehen, der an das Anschlußstück E für die Druckluftleitung anschließt und an seinem at@deren Ende an einer ringförmigen Öffnung F, in deren Mitte der Stanzstößel3 sitzt, mündet. Zwischen dem unteren Ende des Stößels 45 und dem Film verbleibt ein freier Raum, durch den der Bruchstaub entfernt werden kann.The present innovation, shown for example in the drawing eliminates this drawback by blowing an air stream around the punch 3 which has the double task of firstly replacing the upper guide plate, by pressing the film firmly onto the lower plate by means of air pressure and, secondly, to remove the broken dust by blowing it away as soon as it is generated. An air duct D is provided in the plunger 4.5 which receives the punch pin 3, which connects to the connector E for the compressed air line and its at @ their End at an annular opening F, in the middle of which sits the punch 3, opens. A free space remains between the lower end of the plunger 45 and the film, through which the broken dust can be removed.

Claims (2)

PATE NT-ANSPRÜCF1E: z. Vorrichtung an Perforiermaschinen für Kinofilme, dadurch gekennzeichnet, daß der Film durch einen Luftstrom auf seine Unterlage gedrückt wird. PATE NT REQUIREMENTS: e.g. Device on perforating machines for cinema films, characterized in that the film is pressed onto its base by a stream of air. 2. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß -die Stanze mit einem an ihrem unteren Ende mündenden Druckluftkanal versehen ist, und der Träger für den Stanzstift einen gewissen Abstand von der Filmauflage hat. 2. Apparatus according to claim i, characterized in that -the punch is provided with a compressed air channel opening at its lower end, and the carrier for the punch pin has a certain distance from the film support.
DEK86491D Punching device for film perforating machines Expired DE395877C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK86491D DE395877C (en) Punching device for film perforating machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK86491D DE395877C (en) Punching device for film perforating machines

Publications (1)

Publication Number Publication Date
DE395877C true DE395877C (en) 1924-05-19

Family

ID=7235684

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK86491D Expired DE395877C (en) Punching device for film perforating machines

Country Status (1)

Country Link
DE (1) DE395877C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2579940A (en) * 1946-08-27 1951-12-25 Continental Can Co Pneumatic stripper
US5957360A (en) * 1998-01-16 1999-09-28 International Business Machines Corporation System and method for transporting and clamping flexible film structures
DE102009013181A1 (en) * 2009-03-17 2010-09-23 Bundesdruckerei Gmbh Separation device for punching mechanism to separate e.g. precision documents, from punching material, has glass mechanism injecting cleaning fluids from nozzle into drop area of precision document
DE102009013182A1 (en) * 2009-03-17 2010-10-14 Bundesdruckerei Gmbh Isolating device for isolating e.g. precision document from punching product, has switching device flow technically connecting opening with hollow to draw document against contact area for fixing document during completion of shear cut

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2579940A (en) * 1946-08-27 1951-12-25 Continental Can Co Pneumatic stripper
US5957360A (en) * 1998-01-16 1999-09-28 International Business Machines Corporation System and method for transporting and clamping flexible film structures
US6024266A (en) * 1998-01-16 2000-02-15 International Business Machines Corporation System and method for transporting and clamping flexible film structures
DE102009013181A1 (en) * 2009-03-17 2010-09-23 Bundesdruckerei Gmbh Separation device for punching mechanism to separate e.g. precision documents, from punching material, has glass mechanism injecting cleaning fluids from nozzle into drop area of precision document
DE102009013182A1 (en) * 2009-03-17 2010-10-14 Bundesdruckerei Gmbh Isolating device for isolating e.g. precision document from punching product, has switching device flow technically connecting opening with hollow to draw document against contact area for fixing document during completion of shear cut
DE102009013182B4 (en) * 2009-03-17 2017-03-16 Bundesdruckerei Gmbh Separation device and method for separating precision documents with a suction fixation during the punching process
DE102009013181B4 (en) 2009-03-17 2022-09-01 Bundesdruckerei Gmbh Separation device and method for separating precision documents with blow-off and suction device

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