DE287542C - - Google Patents

Info

Publication number
DE287542C
DE287542C DENDAT287542D DE287542DA DE287542C DE 287542 C DE287542 C DE 287542C DE NDAT287542 D DENDAT287542 D DE NDAT287542D DE 287542D A DE287542D A DE 287542DA DE 287542 C DE287542 C DE 287542C
Authority
DE
Germany
Prior art keywords
knife
shaft
spring
counter
cutting
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.)
Active
Application number
DENDAT287542D
Other languages
German (de)
Publication of DE287542C publication Critical patent/DE287542C/de
Active legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/38Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member
    • B26D1/385Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member for thin material, e.g. for sheets, strips or the like

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Knives (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Es ist bei Querschneidemaschinen für Papier, Karton und andere Stoffe bekannt, eines der beiden Messer federnd so zu lagern, daß es unter dem Einfluß des anderen Messers beim Schnitte etwas zurückweicht. Diese Einrichtung wirkt aber nicht dahin, die genaue und gleichmäßige Anlage von Messer und Gegenmesser während des Schnittes, der ein bis mehrere Meter lang sein kann, unterIt is known one in cross-cutting machines for paper, cardboard and other fabrics to mount the two knives so that it is under the influence of the other knife backs away a little while cutting. However, this facility does not have the effect of being the exact one and even contact of knife and counter knife during the cut, which is a can be several meters long, under

ίο größter Messerschonung zu sichern. Nur wenn in dieser Weise die Anlage von Messer und Gegenmesser gesichert wird, kann ein sauberer Schnitt besonders bei dünnen Papieren erreicht werden.ίο to ensure the greatest possible knife protection. Only if in this way the system of knife and counter knife is secured, a cleaner can Cut can be achieved especially with thin papers.

Dies soll nach der Erfindung dadurch erreicht werden, daß als Träger des Messers oder des Gegenmessers unter Federwirkung stehende Schwingarme dienen, die auf der parallel zur Schneidkante angeordneten Welle drehbar angebracht sind.This is to be achieved according to the invention in that as a carrier of the knife or the counter knife are used under spring action swing arms that are on the parallel are rotatably attached to the cutting edge arranged shaft.

In der Zeichnung ist der Erfindungsgegenstand veranschaulicht, und zwar zeigen:The subject of the invention is illustrated in the drawing, namely show:

Fig. ι und 2 einen Aufriß in zwei verschiedenen Stellungen eines Querschneiders mit federnd gelagertem umlaufenden Messer,Fig. Ι and 2 an elevation in two different positions of a cross cutter with resilient mounted rotating knife,

Fig. 3 den zugehörigen Grundriß der in Betracht kommenden Teile,3 shows the associated plan of the parts in question,

Fig. 4 einen Aufriß einer Ausführungsform mit federnd gelagertem Gegenmesser, undFig. 4 is an elevation of an embodiment with a resiliently mounted counter knife, and

Fig. 5 den zugehörigen Grundriß.Fig. 5 shows the associated plan.

Bei den dargestellten Ausführungsbeispielen dreht sich das Messer α um die Welle c. Nach Fig. 1 und 2 ist das Messer α mit der Welle c nicht starr verbunden, vielmehr ist der Messerträger d, an dem das Messer a sitzt, von Armen e ^getragen, die selbst umIn the illustrated embodiments, the knife α rotates about the shaft c. According to Fig. 1 and 2, the knife α is not rigidly connected to the shaft c , rather the knife carrier d, on which the knife a sits, is carried by arms e ^, which themselves around

eine Welle f drehbar gelagert sind, während die Welle f ihre Lagerung an den Armen g findet, die auf der umlaufenden Welle c sitzen. Die Schwingbewegung, welche die Arme e gegenüber den Armen g machen können, wird durch Anschläge i begrenzt. Es wird sonach das Messer α außer der Drehbewegung um die Welle c eine kurze Schwingbewegung gegen die Wirkung der Feder h um die Welle f machen können. Das Gegenmesser b ist starr mit dem Messerträger k verbunden. Zur Führung des federnd gelagerten Messers α ist auf jedem der Arme e, welche den- Messerträger d tragen, eine Rolle I gelagert. Diese gleitet an der Innenfläche einer kurvenförmig ausgebildeten Führung m entlang, und zwar so, daß das Messer α allmählich in die Schnittstellung übergeführt wird. In dem Augenblick, wo die Schneidkante des Messers α die des Gegenmessers b erreicht, tritt die Kurvenführung m zurück, und die Feder h kommt infolgedessen zur vollen Wirkung. Nach beendigtem Schnitt zieht die Feder h den Arm e bis an den Anschlag i zurück.a shaft f are rotatably mounted, while the shaft f is mounted on the arms g , which sit on the rotating shaft c. The swinging movement that the arms e can make with respect to the arms g is limited by stops i. It will therefore be able to make the knife α in addition to the rotary movement around the shaft c a short oscillating movement against the action of the spring h around the shaft f . The counter knife b is rigidly connected to the knife carrier k . To guide the spring-mounted knife α , a roller I is mounted on each of the arms e, which carry the knife carrier d. This slides on the inner surface of a curved guide m along, in such a way that the knife α is gradually transferred into the cutting position. At the moment when the cutting edge of the knife α reaches that of the counter knife b , the cam guide m steps back, and the spring h comes into full effect as a result. When the cut is complete, the spring h pulls the arm e back as far as the stop i .

Diese Ausführungsform des Querschneiders eignet sich am besten zum Schneiden mehrerer Lagen starken Papieres oder Kartons.This embodiment of the cross cutter is best suited for cutting several Layers of strong paper or cardboard.

Zum Querschneiden von ein oder zwei Lagen dünnen Papieres dürfte sich die Anordnung nach Fig. 4 und 5 empfehlen. Hier ist das Messer α mit dem kreisenden Arm g starr verbunden, während der Messerträger k, an dem das Gegenmesser b sitzt, um eine Welle η schwingend gelagert ist, die in den Lagern 0 ruht. Die Bewegung der Schwingarme p, die den Messerträger k halten, wird begrenztThe arrangement according to FIGS. 4 and 5 should be recommended for cross-cutting one or two layers of thin paper. Here the knife α is rigidly connected to the circling arm g , while the knife carrier k, on which the counter knife b sits, is mounted to swing around a shaft η which rests in the bearings 0. The movement of the swing arms p, which hold the knife carrier k , is limited

einerseits durch die Abstandhalter s, welche auf der Welle η befestigt sind, andererseits durch die Federn q, die über der ganzen Länge des Messerträgers k am Rahmengestell r angeordnet sind. Durch die gleichmäßige Verteilung der Federn q über die ganze Länge des Messerträgers wird auch der Widerstand beim Schneiden ein gleichmäßiger sein und auf alle Federn gleichzeitig sich verteilenon the one hand by the spacers s, which are attached to the shaft η , on the other hand by the springs q, which are arranged over the entire length of the knife carrier k on the frame r . Due to the even distribution of the springs q over the entire length of the knife carrier, the resistance during cutting will also be more even and will be distributed over all springs at the same time

ίο müssen.ίο have to.

Sind beim Ausrichten der Messer diese etwas zu nahe aneinandergerückt, so wird das kreisende Messer das Gegenmesser gegen die Wirkung der Federn etwas nach unten drücken, bevor der Schnitt erfolgt. Dabei wird das Gegenmesser b, indem es eine Schwingbewegung um die Welle η macht, zugleich auch seitlich ausweichen und das kreisende Messer a vorbeilassen. Die Federn q werden sich der Stellung der beiden Messer zueinander anpassen und infolgedessen auch die genaue Anlage jedes Punktes beider Schneiden gegeneinander sichern.If, when aligning the knives, they are moved a little too close to one another, the rotating knife will push the counter knife down a little against the action of the springs before the cut is made. At the same time, the counter knife b, by making an oscillating movement around the shaft η, also gives way to the side and lets the rotating knife a pass. The springs q will adapt to the position of the two knives in relation to one another and consequently also ensure the exact contact of each point of the two cutting edges against one another.

Claims (1)

Patent-Anspruch:Patent claim: Querschneider mit federnd gelagertem Messer für Papier, Karton und andere Stoffe, dadurch gekennzeichnet, daß als Träger des kreisenden Messers (a) oder des Gegenmessers (δ) unter Federwirkung stehende Schwingarme (e oder j>) dienen, die auf der parallel zur Schneidkante des Messers verlaufenden Welle (f oder n) drehbar angeordnet sind.Cross cutter with spring-mounted knife for paper, cardboard and other materials, characterized in that spring-loaded swing arms (e or j>) serve as carriers of the rotating knife (a) or the counter knife (δ), which are on the parallel to the cutting edge of the Blade extending shaft (f or n) are rotatably arranged. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT287542D Active DE287542C (en)

Publications (1)

Publication Number Publication Date
DE287542C true DE287542C (en)

Family

ID=542757

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT287542D Active DE287542C (en)

Country Status (1)

Country Link
DE (1) DE287542C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994029088A1 (en) * 1993-06-09 1994-12-22 Datametrics Corporation Web cutter
EP1390178A2 (en) * 2001-04-20 2004-02-25 Tamarack Products, Inc. Apparatus and method for rotary pressure cutting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994029088A1 (en) * 1993-06-09 1994-12-22 Datametrics Corporation Web cutter
EP1390178A2 (en) * 2001-04-20 2004-02-25 Tamarack Products, Inc. Apparatus and method for rotary pressure cutting

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