EP0319752A2 - Mechanism for cutting printed tape in a recording apparatus - Google Patents

Mechanism for cutting printed tape in a recording apparatus Download PDF

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Publication number
EP0319752A2
EP0319752A2 EP88119173A EP88119173A EP0319752A2 EP 0319752 A2 EP0319752 A2 EP 0319752A2 EP 88119173 A EP88119173 A EP 88119173A EP 88119173 A EP88119173 A EP 88119173A EP 0319752 A2 EP0319752 A2 EP 0319752A2
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EP
European Patent Office
Prior art keywords
cutting device
rotary knife
profile
knife
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.)
Granted
Application number
EP88119173A
Other languages
German (de)
French (fr)
Other versions
EP0319752A3 (en
EP0319752B1 (en
Inventor
Horst Pfeiffer
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Hengstler GmbH
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Hengstler GmbH
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Filing date
Publication date
Application filed by Hengstler GmbH filed Critical Hengstler GmbH
Publication of EP0319752A2 publication Critical patent/EP0319752A2/en
Publication of EP0319752A3 publication Critical patent/EP0319752A3/en
Application granted granted Critical
Publication of EP0319752B1 publication Critical patent/EP0319752B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B26D1/25—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 non-circular cutting member
    • B26D1/34—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 non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/38—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 non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member
    • B26D1/385—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 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
    • 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/101—With stopping means effective on completion of predetermined number of tool cycles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/4804—Single tool action drive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/4824—With means to cause progressive transverse cutting
    • Y10T83/4827—With helical cutter blade
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/4847—With cooperating stationary tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8789—With simple revolving motion only
    • Y10T83/8796—Progressively cutting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type
    • Y10T83/9394—Helical tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type
    • Y10T83/9396—Shear type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/95—Machine frame
    • Y10T83/96—Guard

Definitions

  • the invention relates to a cutting device for data strips during machine output, the data strips generally consisting of paper, cardboard or plastic wound on rolls.
  • Such cutting devices for data strips in machine output with an electric motor drive consisting of a double-edged, helically twisted rotary knife with a spring-loaded fixed knife, e.g. according to DE-GM 84 10 627.
  • Such devices are used in automatic systems with integrated data printers for the creation and output of documents, such as Tickets, tickets, receipts, etc. Like.
  • the finished printed document is usually separated from the data medium supply roll, which is done by cutting devices.
  • a cutting device consists of a profile body in an angular shape with an outer recess for the rotary knife along an angle piece and a second angle leg as a bottom part for the motor mount at an angle between the two legs, the Profile body can be cut to the desired pass width.
  • a cover can be placed in a flattened angular shape and, on the other hand, a cover can be provided in an angular form for the drive motor, both hoods can be cut to the desired passage width according to the profile body.
  • the device consists of the two side parts 1 and 2 with an intermediate profile body 3 in an angular shape.
  • a helically twisted, double-edged rotary knife 4 is arranged in a receiving trough 3a, with which a spring-loaded fixed knife 5 interacts.
  • the profile body 3 is covered on both sides by means of hoods 6 and 7. Both the profile body 3 and the covers 6 and 7 are cut to the width of the data carrier used and then closed on both sides with the side parts 1 and 2.
  • Threaded bores 37 are provided on both sides of the profile body 3, the side part 1 being fastened on one side by means of a screw 38, which side accommodates a changeover switch 8, a feeler lever 9, a control line 10 and a bearing 11.
  • the side part 2 is attached, which receives an electric motor 12 with a multi-stage gear 13 and a bearing 14 is fastened to the threaded bore 37 by means of screw 45.
  • the profile body 3 there is also a longitudinal groove 39 for inserting nuts 40 which are used to fasten the cutting device, e.g. serve on data printers.
  • the coiled, double-edged rotary knife 4 made from a section steel has two stub axles 15 and 16 formed on it.
  • the rotary knife forms the two cutting edges 17 and 18 which run helically to the central axis 19 of the profile.
  • One stub axle 15 receives a thrust ring 20 and a two-notch control disk 21, while a gear wheel 22 is placed on the other stub axle 16.
  • the ends of the stub axles 15 and 16 then serve to mount the rotary knife 4 in the bearings 11 and 14 of the side parts 1 and 2.
  • the sprung fixed knife 5 is also from one Piece of profile bar is formed and has bearing bolts 23 and 24 inserted on both end faces, the bearing bolt 24 having a slot 25 for hanging a helical torsion spring 26.
  • the bearing pin 23 is received by an eccentric 27 arranged in the side part 1. Appropriate eccentric adjustment ensures that the cutting edge 28 of the fixed knife 5 extends obliquely to the central axis 19 of the double-edged rotary knife 4, so that the distance between the cutting edge 28 and the central axis 19 of the rotary knife 4 is greater on the side of the thrust ring 20 than on the opposite side, to get an overflowing cutting process.
  • the second bearing pin 24 of the fixed knife 5 provided with a slot 25 is received by the side part 2.
  • the cover 6 envelops the rotary knife 4 received by the receiving trough 3a of the angle profile 3 as well as the fixed knife 5 as protection against the risk of injury and forms one with the profile body 3 on the one hand, an inlet shaft 33 and, on the other hand, an outlet column 34 for the cut piece of data carrier.
  • the cover 7 is to be snapped onto the profile support 3 and forms with this and the two side parts 1 and 2 a tightly closed chamber for the electric motor 12 with gear 13 and changeover switch 8 against dirt and dust, inter alia from the cutting chamber and against contact. If the electric motor 12 is now put into operation with the aid of a start pulse, then it rotates the double-edged rotary knife 4 via the multi-stage gear 13 and the toothed wheel 22, so that its cutting edge 17 moves towards the cutting edge 28 of the spring-loaded fixed knife 5. At the same time, the pushbutton 9 is pressed out of the notch 35 of the control disk 21, which in turn actuates the changeover switch 8. A suitable circuit then applies voltage to the electric motor 12.
  • the data carrier to be separated is located between the cutting edge 17 of the double-edged rotary knife 4 and the cutting edge 28 of the spring-loaded fixed knife 5 and is separated when the double-edged rotary knife 4 is continuously rotated.
  • the cutting process begins when the cutting edge 17 of the double-edged rotary knife 4 has reached the cutting edge 28 of the spring-loaded fixed knife 5 and ends when the double-edged rotary knife has rotated further, namely by angle " ⁇ ".
  • the second notch 36 of the control disk 21 triggers the switchover of the changeover switch 8 into its starting position via the feeler lever 9, so that the power supply to the electric motor 12 is interrupted and the latter comes to a standstill.
  • the double-edged rotary knife 4 has made half a revolution and, since the two cutting edges 17 and 18 are arranged symmetrically, has the same starting position as before.
  • the second cutting edge 18 of the double-edged rotary knife 4 comes into effect, the double-edged rotary knife 4 being rotated again by half a turn.
  • the alternating use of two cutting edges 17 and 18 is of particular advantage in two respects; On the one hand, the service life of the rotary knife is practically doubled, and on the other hand, the expiry time per cutting process, with the same motor and gear design, is halved.

Landscapes

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

Abstract

The invention relates to a mechanism for cutting printed tape in a recording apparatus, the printed tape consisting generally of paper, cardboard or plastic wound on reels. In this arrangement, it is advantageous to keep the dimensions of such cutting mechanisms small so as to arrange them as closely as possible to the data printer, cutting mechanisms of various lengths with a working width adapted in each case to the width of the recording medium having to be produced in a variable and inexpensive manner for recording media of various widths in order to achieve the smallest possible structural size. This is achieved in that the mechanism consists of a profiled angular body with an outer receiving trough for the rotary cutter along an angle piece and with a second angle leg as a base part for receiving the motor in the angle between the two legs, it being possible to cut the profiled body to the desired passage width. …<IMAGE>…

Description

Die Erfindung bezieht sich auf eine Abschneidevorrich­tung für Datenstreifen bei maschineller Ausgabe, wo­bei die Datenstreifen im allgemeinen aus auf Rollen aufgewickeltem Papier, Pappe oder Kunststoff beste­hen.The invention relates to a cutting device for data strips during machine output, the data strips generally consisting of paper, cardboard or plastic wound on rolls.

Mann kennt solche Abschneidevorrichtungen für Daten­streifen bei maschineller Ausgabe mit elektromotorischem Antrieb bestehend aus einem zweischneidigen, schrauben­förmig verwundenen Rotationsmesser mit angefedertem Festmesser, z.B. nach dem DE-GM 84 10 627.Such cutting devices for data strips in machine output with an electric motor drive are known, consisting of a double-edged, helically twisted rotary knife with a spring-loaded fixed knife, e.g. according to DE-GM 84 10 627.

Solche Vorrichtungen finden Verwendung bei automatischen Anlagen mit integrierten Datendruckern zur Erstellung und Ausgabe von Belegen, wie z.B. Fahrausweisen, Ein­trittskarten, Quittungen u. dgl. Hierbei ist der fertig bedruckte Beleg in der Regel von der Datenträger-Vor­ratsrolle abzutrennen, was durch Abschneidevorrichtun­gen geschieht.Such devices are used in automatic systems with integrated data printers for the creation and output of documents, such as Tickets, tickets, receipts, etc. Like. The finished printed document is usually separated from the data medium supply roll, which is done by cutting devices.

Hierbei ist es vorteilhaft solche Abschneidevorrichtun­gen in den Abmessungen klein zu halten zur möglichst nahen Anordnung am Datendrucker. Desweiteren ist eine einfache und kostengünstige Ansteuerung, z.B. mittels Startimpuls erwünscht, wobei der Trennvorgang selbst­ständig erfolgen soll, z.B. mittels eingebautem Motor. Schließlich sollen für unterschiedlich breite Daten­träger zur Erreichung kleinst möglicher Baumaße unterschiedlich lange Abschneidevorrichtungen mit jeweils auf die Breite des Datenträgers abgestellter Arbeitsbreite variabel und kostengünstig her zustel­len sein.It is advantageous to keep such cutting devices small in size so that they can be arranged as close as possible to the data printer. Furthermore, simple and inexpensive control, for example by means of a start pulse, is desired, the separation process being carried out independently, for example by means of a built-in motor. Finally, for differently sized data carriers to achieve the smallest possible dimensions, differently long cutting devices with working widths adjusted to the width of the data carrier should be variable and inexpensive to manufacture.

Diese Aufgabe wird mit einer Abschneidevorrichtung nach dem Oberbegriff des Anspruchs 1 erfindungsgemäß dadurch gelöst, daß die Vorrichtung aus einem Pro­filkörper in Winkelform besteht mit äußerer Aufnahme­mulde für das Rotationsmesser längs einem Winkel­stück und zweitem Winkelschenkel als Bodenteil für die Motoraufnahme im Winkel zwischen beiden Schenkeln, wobei der Profilkörper auf die gewünschte Durchlauf­breite ablängbar ist.This object is achieved with a cutting device according to the preamble of claim 1 in that the device consists of a profile body in an angular shape with an outer recess for the rotary knife along an angle piece and a second angle leg as a bottom part for the motor mount at an angle between the two legs, the Profile body can be cut to the desired pass width.

Im einzelnen ist hierbei einerseits des Profilkörpers mit der Aufnahmemulde für das Rotationsmesser eine Abdeckhaube in abgeflachter Winkelform aufsetzbar und andererseits eine Abdeckhaube in Winkelform für den Antriebsmotor vorgesehen, welche beide Hauben auf die gewünschte Durchlaufbreite entsprechend der Profil­körper ablängbar sind.Specifically, on the one hand of the profile body with the receiving trough for the rotary knife, a cover can be placed in a flattened angular shape and, on the other hand, a cover can be provided in an angular form for the drive motor, both hoods can be cut to the desired passage width according to the profile body.

Hierdurch ergibt sich die Möglichkeit das selbe Prin­zip der Abschneidevorrichtung für verschiedene Daten­streifenbreiten durch jeweils entsprechende Ablängung des Profilkörpers sowie der Abdeckhauben in einfa­cher und kostengünstiger Weise zu erreichen.This results in the possibility of the same principle of the cutting device for different data strip widths, in each case by appropriate cutting to length to achieve the profile body and the covers in a simple and inexpensive manner.

Weitere Einzelheiten einer bevorzugten Vorrichtung gemäß der Erfindung ergeben sich aus der nachfolgen­den Beschreibung anhand der Zeichnung und zwar zeigen:

  • Fig. 1 einen Querschnitt durch eine solche Vorrichtung,
  • Fig. 2 einen Längsschnitt durch diese Vorrich­tung in Draufsicht und
  • Fig. 3 eine Seitenansicht dieser Vorrichtung teilweise aufgeschnitten.
Further details of a preferred device according to the invention will become apparent from the following description with reference to the drawing, which show:
  • 1 shows a cross section through such a device,
  • Fig. 2 shows a longitudinal section through this device in plan view and
  • Fig. 3 is a side view of this device partially cut away.

Wie aus der Zeichnung ersichtlich ist, besteht die Vorrichtung aus den beiden Seitenteilen 1 und 2 mit zwischenliegendem Profilkörper 3 in Winkelform. Einerseits des Profilkörpers ist in einer Aufnahmemul­de 3a ein schraubenförmig verwundenes, zweischneidi­ges Rotationsmesser 4 angeordnet, mit welchem ein angefedertes Festmesser 5 zusammenwirkt. Der Profil­körper 3 ist beidseits mittels Hauben 6 und 7 abge­deckt. Sowohl der Profilkörper 3 als auch die Abdeck­hauben 6 und 7 sind auf die Breite des verwendeten Datenträgers abzulängen und sodann beidseits mit den Seitenteilen 1 und 2 zu verschließen.As can be seen from the drawing, the device consists of the two side parts 1 and 2 with an intermediate profile body 3 in an angular shape. On the one hand of the profile body, a helically twisted, double-edged rotary knife 4 is arranged in a receiving trough 3a, with which a spring-loaded fixed knife 5 interacts. The profile body 3 is covered on both sides by means of hoods 6 and 7. Both the profile body 3 and the covers 6 and 7 are cut to the width of the data carrier used and then closed on both sides with the side parts 1 and 2.

Am Profilkörper 3 sind beidseits stirnseitig Gewin­debohrungen 37 angebracht,w-obei auf einer Seite das Seitenteil 1 mittels Schraube 38 befestigt ist, welche Seite einen Wechselschalter 8, einen Tasthe­bel 9, eine Steuerleitung 10 sowie ein Lager 11 aufnimmt. Auf der anderen Seite des Profilkörpers 3 ist das Seitenteil 2 angebracht, welches einen Elektro­motor 12 mit mehrstufigem Getriebe 13 und ein Lager 14 aufnimmt mittels Schraube 45 an der Gewindebohrung 37 befestigt ist. Am Profilkörper 3 ist ferner eine Längsnut 39 angebracht zum Einlegen von Muttern 40, welche der Befestigung der Abschneidevorrichtung, z.B. an Datendruckern dienen.Threaded bores 37 are provided on both sides of the profile body 3, the side part 1 being fastened on one side by means of a screw 38, which side accommodates a changeover switch 8, a feeler lever 9, a control line 10 and a bearing 11. On the other side of the profile body 3, the side part 2 is attached, which receives an electric motor 12 with a multi-stage gear 13 and a bearing 14 is fastened to the threaded bore 37 by means of screw 45. On the profile body 3 there is also a longitudinal groove 39 for inserting nuts 40 which are used to fasten the cutting device, e.g. serve on data printers.

Dem aus einem Profilstahl gefertigten gewundenen, zweischneidigen Rotationsmesser 4 sind zwei Achsstum­mel 15 und 16 angeformt. Das Rotationsmesser bildet die beiden Schneidkanten 17 und 18 die schraubenför­mig zur Mittelachse 19 des Profils verlaufen. Der eine Achsstummel 15 nimmt einen Anlaufring 20 sowie eine zweikerbige Steuerscheibe 21 auf, während auf dem anderen Achsstummel 16 ein Zahnrad 22 aufgesetzt ist. Die Achsstummel 15 und 16 dienen mit ihren En­den sodann der Lagerung des Rotationsmessers 4 in den Lagern 11 und 14 der Seitenteile 1 und 2.The coiled, double-edged rotary knife 4 made from a section steel has two stub axles 15 and 16 formed on it. The rotary knife forms the two cutting edges 17 and 18 which run helically to the central axis 19 of the profile. One stub axle 15 receives a thrust ring 20 and a two-notch control disk 21, while a gear wheel 22 is placed on the other stub axle 16. The ends of the stub axles 15 and 16 then serve to mount the rotary knife 4 in the bearings 11 and 14 of the side parts 1 and 2.

Das angefederte Festmesser 5 wird ebenfalls von einem Stück Profilstab gebildet und weist an beiden Stirn­seiten eingesetzte Lagerbolzen 23 und 24 auf, wobei der Lagerbolzen 24 einen Schlitz 25 zum Einhängen ei­ner schraubenförmigen Drehfeder 26 besitzt. Der Lager­bolzen 23 wird von einem im Seitenteil 1 angeordneten Exzenter 27 aufgenommen. Durch entsprechende Exzenter­verstellung wird erreicht, daß die Schneidkante 28 des Festmessers 5 zur Mittelachse 19 des zweischneidi­gen Rotationsmessers 4 schräg verläuft, so daß der Abstand der Schneidkante 28 zur Mittelachse 19 des Rotationsmessers 4 auf der Seite des Anlaufrings 20 größer ist als auf der gegenüberliegenden Seite, um einen überlaufenden Schneidvorgang zu erhalten.The sprung fixed knife 5 is also from one Piece of profile bar is formed and has bearing bolts 23 and 24 inserted on both end faces, the bearing bolt 24 having a slot 25 for hanging a helical torsion spring 26. The bearing pin 23 is received by an eccentric 27 arranged in the side part 1. Appropriate eccentric adjustment ensures that the cutting edge 28 of the fixed knife 5 extends obliquely to the central axis 19 of the double-edged rotary knife 4, so that the distance between the cutting edge 28 and the central axis 19 of the rotary knife 4 is greater on the side of the thrust ring 20 than on the opposite side, to get an overflowing cutting process.

Der zweite mit einem Schlitz 25 versehene Lagerbolzen 24 des Festmessers 5 wird vom Seitenteil 2 aufgenom­men. Die in den Schlitz 25 eingreifende schraubenförmi­ge Drehfeder 26, welche mittels Klemmschraube 29 arre­tierbarem Federhaltestück 30 vorzuspannen ist, be­wirkt, daß die Schneidkante 28 des Festmessers 5 im Stillstand am Anlaufring 20 anliegt und während dem Schneidvorgang an einer der beiden Schneidkanten 17 bzw. 18 des Rotationsmessers 4 federnd anliegt.The second bearing pin 24 of the fixed knife 5 provided with a slot 25 is received by the side part 2. The helical torsion spring 26 engaging in the slot 25, which is to be preloaded by means of the clamping screw 29 lockable spring holding piece 30, causes the cutting edge 28 of the fixed knife 5 to bear against the thrust ring 20 when stationary and during the cutting process against one of the two cutting edges 17 and 18 of the rotary knife 4 rests resiliently.

Die Abdeckhaube 6 umhüllt das von der Aufnahmemulde 3a des Winkelprofils 3 aufgenommenen Rotationsmessers 4 ebenso wie das Festmesser 5 als Schutz gegen Verletzungs­gefahr und bildet zusammen mit dem Profilkörper 3 einer­ seits einen Einlaufschacht 33 und andererseits eine Auslaufspalte 34 für das jeweils abgeschnittene Datenträgerstück.The cover 6 envelops the rotary knife 4 received by the receiving trough 3a of the angle profile 3 as well as the fixed knife 5 as protection against the risk of injury and forms one with the profile body 3 on the one hand, an inlet shaft 33 and, on the other hand, an outlet column 34 for the cut piece of data carrier.

Die Abdeckhaube 7 ist am Profilträger 3 einzurasten und bildet mit diesem und den beiden Seitenteilen 1 und 2 eine dicht geschlossene Kammer für den Elektromo­tor 12 mit Getriebe 13 und Wechselschalter 8 gegen Schmutz und Staub u.a. von der Schneidekammer sowie gegen Berührung.
Wird nun der Elektromotor 12 mit Hilfes eines Start­impulses in Betrieb gesetzt, dann verdreht er über das mehrstufige Getriebe 13 und das Zahnrad 22 das zweischneidige Rotationsmesser 4, so daß sich dessen Schneidkante 17 zur Schneidkante 28 des angefederten Festmessers 5 hin bewegt. Dabei wird gleichzeitig der Tasthebel 9 aus der Kerbe 35 der Steuerscheibe 21 ge­drückt, welcher seinerseits den Wechselschalter 8 be­tätigt. Durch geeignete Beschaltung liegt dann Spannung am Elektromotor 12. Der zu trennende Datenträger befin­det sich zwischen der Schneidkante 17 des zweischneidi­gen Rotationsmessers 4 und der Schneidkante 28 des angefederten Festmessers 5 und wird bei fortlaufender Verdrehung des zweischneidigen Rotationsmessers 4 ab­getrennt. Der Trennvorgang beginnt, wenn die Schneid­kante 17 des zweischneidigen Rotationsmessers 4 die Schneidkante 28 des angefederten Festmessers 5 erreicht hat und endet, wenn sich das zweischneidige Rotations­messer weiter, und zwar um Winkel "β" verdreht hat. Bei fortlaufender Verdrehung des zweischneidigen Rotationsmessers 4 löst die zweite Kerbe 36 der Steuerscheibe 21 über den Tasthebel 9 die Umschal­tung des Wechselschalters 8 in seine Ausgangsstel­lung aus, so daß die Stromzuleitung zum Elektromo­tor 12 unterbrochen wird und dieser zum Stillstand kommt. Das zweischneidige Rotationsmesser 4 hat hier­bei eine halbe Umdrehung zurückgelegt und weist, da die beiden Schneidkanten 17 und 18 symmetrisch angeord­net sind, die gleiche Ausgangsstellung wie zuvor auf.The cover 7 is to be snapped onto the profile support 3 and forms with this and the two side parts 1 and 2 a tightly closed chamber for the electric motor 12 with gear 13 and changeover switch 8 against dirt and dust, inter alia from the cutting chamber and against contact.
If the electric motor 12 is now put into operation with the aid of a start pulse, then it rotates the double-edged rotary knife 4 via the multi-stage gear 13 and the toothed wheel 22, so that its cutting edge 17 moves towards the cutting edge 28 of the spring-loaded fixed knife 5. At the same time, the pushbutton 9 is pressed out of the notch 35 of the control disk 21, which in turn actuates the changeover switch 8. A suitable circuit then applies voltage to the electric motor 12. The data carrier to be separated is located between the cutting edge 17 of the double-edged rotary knife 4 and the cutting edge 28 of the spring-loaded fixed knife 5 and is separated when the double-edged rotary knife 4 is continuously rotated. The cutting process begins when the cutting edge 17 of the double-edged rotary knife 4 has reached the cutting edge 28 of the spring-loaded fixed knife 5 and ends when the double-edged rotary knife has rotated further, namely by angle "β". With continuous rotation of the double-edged rotary knife 4, the second notch 36 of the control disk 21 triggers the switchover of the changeover switch 8 into its starting position via the feeler lever 9, so that the power supply to the electric motor 12 is interrupted and the latter comes to a standstill. The double-edged rotary knife 4 has made half a revolution and, since the two cutting edges 17 and 18 are arranged symmetrically, has the same starting position as before.

Beim nächstfolgenden Trennvorgang kommt die zweite Schneidkante 18 des zweischneidigen Rotationsmessers 4 zur Wirkung, wobei das zweischneidige Rotationsmes­ser 4 wieder um eine halbe Umdrehung verdreht wird. Der wechselnde Einsatz von zwei Schneidkanten 17 und 18 zeigt sich in zweierlei Hinsicht von besonderem Vorteil; so wird einerseits die Standzeit des Rotations­messers praktisch verdoppelt und andererseits die Ab­laufzeit pro Trennvorgang, bei gleicher Motor- und Getriebeauslegung, halbiert.In the next cutting process, the second cutting edge 18 of the double-edged rotary knife 4 comes into effect, the double-edged rotary knife 4 being rotated again by half a turn. The alternating use of two cutting edges 17 and 18 is of particular advantage in two respects; On the one hand, the service life of the rotary knife is practically doubled, and on the other hand, the expiry time per cutting process, with the same motor and gear design, is halved.

Claims (11)

1. Abschneidevorrichtung für Datenstreifen bei maschineller Ausgabe mit elektromotorischem Antrieb bestehend aus einem zweischneidigen, schrau­benförmig verwundenen Rotationsmesser mit angefeder­tem Festmesser,
dadurch gekennzeichnt, daß die Vorrichtung aus einem Profilkörper in Winkelform besteht mit äußerer Auf­nahmemulde für das Rotationsmesser längs einem Winkel­schenkel und zweitem Winkelschenkel als Bodenteil für die Motoraufnahme im Winkel zwischen beiden Schenkeln, wobei der Profilkörper auf die gewünschte Durchlauf­breite ablängbar ist.1. cutting device for data strips in the case of machine output with an electric motor drive consisting of a double-edged, helically twisted rotary knife with a spring-loaded fixed knife,
characterized in that the device consists of a profile body in an angular shape with an outer receiving trough for the rotary knife along an angle leg and a second angle leg as a base part for the motor mount at an angle between the two legs, the profile body being cut to the desired throughput width. 2. Abschneidevorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß einerseits des Profilkörpers mit der Aufnahmemulde für das Rotations­messer eine Abdeckhaube in abgeflachter Winkelform aufsetzbar und andererseits eine Abdeckhaube in Win­kelform für den Antriebsmotor vorgesehen ist, welche beiden Hauben auf die gewünschte Durchlaufbreite ent­sprechend der Profilkörper ablängbar sind.2. Cutting device according to claim 1,
characterized in that on the one hand of the profile body with the receiving trough for the rotary knife a cover in flattened angular form can be fitted and on the other hand a cover in angular form is provided for the drive motor, which two hoods can be cut to the desired passage width according to the profile body. 3. Abschneidevorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß auf das eine Profil­ende ein entsprechend geformtes Seitenteil mit Lagerung für den Motor mit Getriebe sowie Rotationsmesser auf­setz- und mit dem Profilende verschraubbar ist.3. cutting device according to claim 1 or 2,
characterized in that a correspondingly shaped side part with bearing for the motor with gear and rotary knife can be placed on one profile end and screwed to the profile end. 4. Abschneidevorrichtung nach Anspruch 1, 2 oder 3,
dadurch gekennzeichnet, daß auf das andere Profil­ende ein entsprechend geformtes Seitenteil zur Lage­rung für die Signaleinrichtung - Tasthebel, Schalter, Exzenter und Steuerleitung - sowie Rotationsmesser aufsetz- und mit dem Profilende verschraubbar ist.4. cutting device according to claim 1, 2 or 3,
characterized in that on the other end of the profile a correspondingly shaped side part for storage for the signaling device - feeler, switch, eccentric and control line - and rotary knife can be placed and screwed to the end of the profile. 5. Abschneidevorrichtung nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß an beiden Seitenteilen innenseitig Zapfen zur Halterung der Abdeckhaube für das Rotationsmesser angeformt sind.5. Cutting device according to one of claims 1 to 4,
characterized in that pegs are formed on the inside on both side parts for holding the cover for the rotary knife. 6. Abschneidevorrichtung nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß ein Seitenteil, vorzugswei­se auf der Antriebsseite einen geteilten Stift mit Drehfederverbindung aufnimmt zur Anfederung des Fest­messers.6. Cutting device according to one of claims 1 to 5,
characterized in that a side part, preferably on the drive side, receives a split pin with a torsion spring connection for springing the fixed knife. 7. Abschneidevorrichtung nach einem der Ansprü­che 1 bis 6,
dadurch gekennzeichnet, daß zwischen den beiden ge­trennten Kammern bildende Abdeckkappen einerseits ein Ein- und andererseits ein Auslaufschacht für den Daten­streifen ausgebildet ist, wobei die den Motor mit Getriebe- und Signaleinrichtung aufnehmender Kammer gegenüber der Schneidkammer dicht abgetrennt ist.7. Cutting device according to one of claims 1 to 6,
characterized in that between the two separate chambers forming cover caps on the one hand an inlet and on the other hand an outlet shaft for the data strip is formed, the chamber accommodating the motor with transmission and signaling device being tightly separated from the cutting chamber. 8. Abschneidevorrichtung nach einem der Ansprü­che 1 bis 7,
dadurch gekennzeichnet, daß der Profilkörper entland seiner Unterseite im Winkelbereich eine T-Nut zur verschiebbaren Aufnahme von Schraubmuttern, sowie ent­lang seiner Winkelkante eine Abschrägung zur Anlage und Befestigung an eine Datenträgerführung aufweist.8. Cutting device according to one of claims 1 to 7,
characterized in that the profile body along its underside has a T-slot in the angular region for the displaceable reception of screw nuts, and along its angular edge has a bevel for abutment and attachment to a data carrier guide. 9. Abschneidevorrichtung nach einem der vorher­gehenden Ansprüche,
dadurch gekennzeichnet, daß das zweischneidige, schraubenförmige Rotationsmesser aus einem verdrehten Stahlprofilstab gebildet ist mit beidseitigen Achs­stummeln zur Lagerung und einerseitiger Aufnahme eines Anlaufrings und einer Steuerscheibe und ander­seitiger Aufnahme eines Zahnrades zum Getriebean­schluß.9. Cutting device according to one of the preceding claims,
characterized in that the double-edged, helical rotary knife is formed from a twisted steel profile bar with stub axles on both sides for mounting and receiving a thrust ring and a control disk on one side and receiving a gear wheel on the other side for connecting the gear. 10. Abschneidevorrichtung nach einem der vorher­gehenden Ansprüche,
dadurch gekennzeichnet, daß das Festmesser einer­seits von einem Drehfederstift angefedert gehalten ist und andererseits über einen Eingriff in den Exzenter mit seiner Schneidkante in die gewünschte Schräglage zum zweischneidigen Rotationsmesser ein­stellbar ist.10. Cutting device according to one of the preceding claims,
characterized in that the fixed knife is on the one hand spring-loaded by a torsion spring pin and on the other hand can be adjusted with an engagement in the eccentric with its cutting edge in the desired inclined position to the double-edged rotary knife. 11. Abschneidevorrichtung für Datenstreifen bei maschineller Ausgabe mit elektromotorischem Antrieb bestehend aus einem zweischneidigen, schrauben­ förmig verwundenen Rotationsmesser mit angefedertem Festmesser,
dadurch gekennzeichnet, daß diese aus einem winkelför­migen Profilkörper besteht, auf dessen beiden Enden Seitenteile aufsetzbar sind, welche das Getriebe vom Antrieb, die Lagerung für das Rotationsmesser, die Justierung für das Festmesser, die Motorsteuerung, so­wie die funktionell gebogenen Abdeckbleche aufnehmen, wobei durch beliebige Länge der Profilteile und Messer die gewünschte Arbeitsbreite herstellbar ist.11. Cutting device for data strips for machine output with an electric motor drive consisting of a double-edged screw twisted knife with spring-loaded fixed knife,
characterized in that it consists of an angular profile body, on the two ends of which side parts can be placed, which accommodate the transmission from the drive, the bearing for the rotary knife, the adjustment for the fixed knife, the motor control, and the functionally curved cover plates, whereby by any Length of the profile parts and knives the desired working width can be produced.
EP88119173A 1987-12-05 1988-11-18 Mechanism for cutting printed tape in a recording apparatus Expired - Lifetime EP0319752B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8716108U 1987-12-05
DE8716108U DE8716108U1 (en) 1987-12-05 1987-12-05 Cutting device for data strips for machine output

Publications (3)

Publication Number Publication Date
EP0319752A2 true EP0319752A2 (en) 1989-06-14
EP0319752A3 EP0319752A3 (en) 1990-08-22
EP0319752B1 EP0319752B1 (en) 1992-11-11

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ID=6814804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119173A Expired - Lifetime EP0319752B1 (en) 1987-12-05 1988-11-18 Mechanism for cutting printed tape in a recording apparatus

Country Status (3)

Country Link
US (1) US4949606A (en)
EP (1) EP0319752B1 (en)
DE (2) DE8716108U1 (en)

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EP0462851A2 (en) * 1990-05-23 1991-12-27 Axiohm Apparatus for transverse cutting of a paper web

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Also Published As

Publication number Publication date
DE8716108U1 (en) 1988-02-18
EP0319752A3 (en) 1990-08-22
EP0319752B1 (en) 1992-11-11
DE3875920D1 (en) 1992-12-17
US4949606A (en) 1990-08-21

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