DE1215177B - Circular knife cutting device for longitudinal cutting of sheets in the chain offshoot of a printing machine - Google Patents

Circular knife cutting device for longitudinal cutting of sheets in the chain offshoot of a printing machine

Info

Publication number
DE1215177B
DE1215177B DEM47833A DEM0047833A DE1215177B DE 1215177 B DE1215177 B DE 1215177B DE M47833 A DEM47833 A DE M47833A DE M0047833 A DEM0047833 A DE M0047833A DE 1215177 B DE1215177 B DE 1215177B
Authority
DE
Germany
Prior art keywords
circular knife
cutting device
chain
cutting
circular
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.)
Pending
Application number
DEM47833A
Other languages
German (de)
Inventor
Robert Reinartz
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.)
MAN AG
Original Assignee
MAN Maschinenfabrik Augsburg Nuernberg AG
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 MAN Maschinenfabrik Augsburg Nuernberg AG filed Critical MAN Maschinenfabrik Augsburg Nuernberg AG
Priority to DEM47833A priority Critical patent/DE1215177B/en
Publication of DE1215177B publication Critical patent/DE1215177B/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/56—Folding or cutting
    • B41F13/58—Folding or cutting lengthwise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting 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
    • B26D1/01—Cutting 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
    • B26D1/12—Cutting 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
    • B26D1/14—Cutting 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 circular cutting member, e.g. disc cutter
    • B26D1/20—Cutting 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 circular cutting member, e.g. disc cutter coacting with a fixed member
    • B26D1/205—Cutting 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 circular cutting member, e.g. disc cutter coacting with a fixed member for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting 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
    • B26D1/01—Cutting 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
    • B26D1/12—Cutting 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
    • B26D1/14—Cutting 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 circular cutting member, e.g. disc cutter
    • B26D1/22—Cutting 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 circular cutting member, e.g. disc cutter coacting with a movable member, e.g. a roller
    • B26D1/225—Cutting 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 circular cutting member, e.g. disc cutter coacting with a movable member, e.g. a roller for thin material, e.g. for sheets, strips or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Handling Of Sheets (AREA)

Description

Kreismesser-Schneidvorrichtung zum Längsschneiden von Bogen im Kettenableger einer Druckmaschine Es ist bekannt, zum Längsschneiden von Bogen an Druckmaschinen ein rotierendes Schneidmesser auf der Anlegetrommel vor dem Einlauf der Bogen in die Druckwerke anzuordnen. Diese Maßnahme kann jedoch zu Passerdifferenzen führen und gibt nur einen ungenauen Schnitt. Bei einer weiteren bekannten Vorrichtung ist das Schneidmesser auf der Auslegetrommel nach den Druckwerken angeordnet. Um dabei das Einlaufen der Greifersysteme in die Trommel zu ermöglichen, muß der Schneidring unterbrochen sein, wodurch ein Teil des Bogens dann nicht geschnitten werden kann. Auch hier ist kein genauer Schnitt möglich und überdies die Abnutzung des Schneidmessers erheblich. Man hat auch schon vorgeschlagen, die Bogen im Ausleger selbst mit einer eigenen Schneidtrommel zu teilen. Neben einem ungenauen Schnitt besteht dabei auch die Gefahr des Verschmierens des Druckes. Davon abgesehen ist der Aufwand auch erheblich. Bei einer weiteren bekannten Schneidvorrichtung sind die Greiferwellen an der Kefte höher gesetzt worden, um unterhalb derselben auf der Oberseite des Bogens ein Kreismesser anbringen zu können. Eine derartige Ausbildung der Greiferkette ist jedoch sehr schwingungsanfällig und bewirkt einen unruhigen Lauf. Bei einer weiteren bekannten Schneidvorrichtung werden auf der Ober-und Unterseite der zu trennenden Bahn angeordnete Kreismesser verwendet, die eine Ringnut aufweisen und daher mit zwei Reihen von Schneidzähnen versehen sind. Um das Ablösen der Papierbahnen von den Messern zu ermöglichen, sind dabei in die Ringnuten reichende feste Zungen vorgesehen. Für den eigentlichen Schneidvorgang werden letztere aber nicht herangezogen.Circular knife cutting device for lengthwise cutting of sheets in the chain offshoot a printing machine It is known for the longitudinal cutting of sheets on printing machines a rotating cutting knife on the feed drum before the sheets enter to arrange the printing units. However, this measure can lead to register differences and only gives an imprecise cut. Another known device is the cutting knife is arranged on the delivery drum after the printing units. To do it The cutting ring must enable the gripper systems to run into the drum be interrupted, so that part of the sheet cannot be cut. Here, too, a precise cut is not possible and, moreover, the wear and tear of the cutting knife considerable. It has also been suggested to use a share your own cutting drum. In addition to an imprecise cut, there is also the risk of smearing the print. Apart from that, the effort is also considerable. In a further known cutting device, the gripper shafts are on the edge has been set higher to have a circular knife below the same on top of the arch to be able to attach. However, such a design of the gripper chain is very susceptible to vibrations and causes a restless run. Another well-known one Cutting devices are arranged on the top and bottom of the web to be separated Circular knives used, which have an annular groove and therefore with two rows of Cutting teeth are provided. In order to remove the paper webs from the knives enable, fixed tongues reaching into the annular grooves are provided. For however, the latter are not used for the actual cutting process.

Die vorerwähnten Nachteile werden erfindungsgemäß dadurch vermieden, daß im Bereich der Bogenbahn eine feststehende schmale Schneidzunge vorgesehen ist, die von oben zwischen zwei koaxiale, rotierende und auf der Unterseite der Bogenbahn angeordnete Kreismesser beiderseitig anliegend eingreift. Die Kreismesser werden vorteilhafterweise dabei von einem in die Auslegerkette eingreifenden Kettenrad über eine Gelenkwelle angetrieben. Durch diese Maßnahmen wird mit einfachen Mitteln ein Stoßen und Abdrängen der Bogen an der festen Schneidzunge verhindert und damit ein genauer Schnitt ermöglicht, welcher wiederum die Registerhaltigkeit gewährleistet.The aforementioned disadvantages are avoided according to the invention by that a fixed narrow cutting tongue is provided in the area of the sheet path, the one from above between two coaxial, rotating and on the underside of the arched path arranged circular knife engages lying on both sides. The circular knives will be advantageously by a sprocket engaging in the cantilever chain Driven by a cardan shaft. By these measures is with simple means a bumping and pushing of the sheet on the fixed cutting tongue is prevented and thus a precise cut enables, which in turn guarantees the registration.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigt F i g. 1 eine Vorderansicht der Schneidvorrichtung, F i g. 2 eine Seitenansicht.An exemplary embodiment of the invention is shown in the drawing. It shows F i g. 1 is a front view of the cutting device, FIG. 2 is a side view.

Die Schneidvorrichtung besteht aus der im Bereich der Bogenbahn feststehenden Schneidzunge 1 und den beiden rotierenden Kreismessern 2 und 3 unterhalb der Bahn, welche zu beiden Seiten der Zunge anliegen. Die Kreismesser sind auf einem Messerkörper 4 befestigt, und -zwar mittels Ringscheiben 5 und Spannspiralen 6. Außerhalb der Schneidmesser 2 und 3 sind annähernd denselben Durchmesser aufweisende bekannte Saugringe 7 und 8 vorgesehen, welche zur Führung des geschnittenen Bogens dienen. Der Messerkörper 4 ist auf einer Welle 9 befestigt, die in Kugellagern 10 eines feststehenden Rahmens läuft. Sind mehrere Längsschnitte auszuführen, so können auf der Welle 9 mehrere Messerkörper in Abstand angeordnet werden. Die Welle 9 ist über eine Gelenkwelle 11 mit einem Kettenrad 12 verbunden, das in. die Auslegerkette 13 eingreift und so den Antrieb des Messerkopfes und damit der Kreismesser bewirkt.The cutting device consists of the one that is stationary in the area of the sheet path Cutting tongue 1 and the two rotating circular knives 2 and 3 below the track, which lie on both sides of the tongue. The circular knives are on a knife body 4 attached, and indeed by means of washers 5 and tension spirals 6. Outside the Cutting knives 2 and 3 are known and have approximately the same diameter Suction rings 7 and 8 are provided, which serve to guide the cut sheet. The knife body 4 is mounted on a shaft 9, which in ball bearings 10 of a fixed frame runs. If several longitudinal cuts are to be made, you can click on the shaft 9 several knife bodies are arranged at a distance. Wave 9 is over a cardan shaft 11 connected to a sprocket 12, which is in. the boom chain 13 engages and thus causes the drive of the cutter head and thus the circular knife.

Claims (1)

Patentansprüche: 1. Kreismesser-Schneidvorrichtung zum Längsschneiden von Bogen im Kettenableger einer Druckmaschine, dadurch gekennzeichn e t, daß im Bereich der Bogenbahn eine feststehende schmale Schneidzunge (1) vorgesehen ist, die von oben zwischen zwei koaxiale, rotierende und auf der Unterseite der Bogenbahn angeordnete Kreismesser (2, 3) beiderseitig anliegend eingreift. 2. Kreismesser-Schneidvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Kreismesser (2, 3) durch ein in die Kette (13) des Auslegers eingreifendes Kettenrad (12) über eine Gelenkwelle (11) angetrieben werden. 3. Kreismesser-Schneidvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß bei mehreren über die Breite vorgesehenen Schneidstellen die Kreismesser (2, 3) auf einer gemeinsamen Welle (9) angeordnet sind, welche von der Gelenkwelle (11) angetrieben wird. 4. Kreismesser-Schneidvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß außerhalb der .beiden Kreismesser (2,3) annähernd denselben Durchmesser aufweisende, an sich bekannte Saugringe (7, 8) vorgesehen sind. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr.111218, 737 375, 1029 833; britische Patentschrift Nr. 650 200.Claims: 1. Circular knife cutting device for longitudinal cutting of sheets in the chain offshoot of a printing machine, characterized gekennzeichn et that a fixed narrow cutting tongue (1) is provided in the area of the sheet web, which is arranged from above between two coaxial, rotating and on the underside of the sheet web Circular knife (2, 3) engages flush on both sides. 2. Circular knife cutting device according to claim 1, characterized in that the circular knives (2, 3) are driven by a chain wheel (12) engaging in the chain (13) of the boom via a cardan shaft (11). 3. Circular knife cutting device according to claim 1, characterized in that with several cutting points provided over the width, the circular knives (2, 3) are arranged on a common shaft (9) which is driven by the articulated shaft (11). 4. Circular knife cutting device according to claim 1, characterized in that outside the .beiden circular knives (2,3) approximately the same diameter, known suction rings (7, 8) are provided. Documents considered: German Patent Nos. 111218, 737 375, 1029 833; British Patent No. 650 200.
DEM47833A 1961-01-28 1961-01-28 Circular knife cutting device for longitudinal cutting of sheets in the chain offshoot of a printing machine Pending DE1215177B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM47833A DE1215177B (en) 1961-01-28 1961-01-28 Circular knife cutting device for longitudinal cutting of sheets in the chain offshoot of a printing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM47833A DE1215177B (en) 1961-01-28 1961-01-28 Circular knife cutting device for longitudinal cutting of sheets in the chain offshoot of a printing machine

Publications (1)

Publication Number Publication Date
DE1215177B true DE1215177B (en) 1966-04-28

Family

ID=7306038

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM47833A Pending DE1215177B (en) 1961-01-28 1961-01-28 Circular knife cutting device for longitudinal cutting of sheets in the chain offshoot of a printing machine

Country Status (1)

Country Link
DE (1) DE1215177B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998019835A1 (en) * 1996-11-02 1998-05-14 Tetra Laval Holdings & Finance S.A. Device for mechanically separating longitudinally interconnected workpieces
EP1498374A3 (en) * 2003-07-18 2009-04-22 Koenig & Bauer Aktiengesellschaft Device for separating cut sheets in a printing machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE111218C (en) *
DE737375C (en) * 1938-04-02 1943-07-12 B Pichler & Co Maschf Ing Conveyor equipment on sheet cutting and folding machines
GB650200A (en) * 1948-09-29 1951-02-14 Oscar Legg Improvements in and relating to paper shredding machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE111218C (en) *
DE737375C (en) * 1938-04-02 1943-07-12 B Pichler & Co Maschf Ing Conveyor equipment on sheet cutting and folding machines
GB650200A (en) * 1948-09-29 1951-02-14 Oscar Legg Improvements in and relating to paper shredding machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998019835A1 (en) * 1996-11-02 1998-05-14 Tetra Laval Holdings & Finance S.A. Device for mechanically separating longitudinally interconnected workpieces
EP1498374A3 (en) * 2003-07-18 2009-04-22 Koenig & Bauer Aktiengesellschaft Device for separating cut sheets in a printing machine

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