EP3505355B1 - Cutting device for continuous labels - Google Patents

Cutting device for continuous labels Download PDF

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Publication number
EP3505355B1
EP3505355B1 EP17211267.4A EP17211267A EP3505355B1 EP 3505355 B1 EP3505355 B1 EP 3505355B1 EP 17211267 A EP17211267 A EP 17211267A EP 3505355 B1 EP3505355 B1 EP 3505355B1
Authority
EP
European Patent Office
Prior art keywords
printer
movable blade
movement
drive
blade
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
EP17211267.4A
Other languages
German (de)
French (fr)
Other versions
EP3505355A1 (en
Inventor
Moritz Dehner
Alexander Hirsch
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.)
Bizerba SE and Co KG
Original Assignee
Bizerba SE and Co KG
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 Bizerba SE and Co KG filed Critical Bizerba SE and Co KG
Priority to EP17211267.4A priority Critical patent/EP3505355B1/en
Priority to US16/211,264 priority patent/US10717624B2/en
Publication of EP3505355A1 publication Critical patent/EP3505355A1/en
Application granted granted Critical
Publication of EP3505355B1 publication Critical patent/EP3505355B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • B65H35/08—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with revolving, e.g. cylinder, cutters or perforators
    • 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
    • B26D1/04—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 linearly-movable cutting member
    • B26D1/06—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 linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/08—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 linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type
    • B26D1/085—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 linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/66—Applications of cutting devices
    • B41J11/70—Applications of cutting devices cutting perpendicular to the direction of paper feed
    • B41J11/703—Cutting of tape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4075—Tape printers; Label printers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/005—Dispensers, i.e. machines for unwinding only parts of web roll
    • 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
    • B26D1/0006—Cutting members therefor
    • B26D2001/0066—Cutting members therefor having shearing means, e.g. shearing blades, abutting blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/66—Applications of cutting devices
    • B41J11/666—Cutting partly, e.g. cutting only the uppermost layer of a multiple-layer printing material

Definitions

  • the present invention relates to a printer for printing on a print medium and a cutter for severing a printed part of the print medium.
  • the EP 2 842 757 B1 and US 2010/086340 A show a printer and a cutter for severing a printed print medium, with a movable blade that is replaceable. Replacement requires disassembly of the cutter and removal of a blade slide.
  • the object of the invention is to provide a printer with a cutting device for cutting off a printed part of the print medium, in which a blade of the cutting device can be replaced easily and without tools, even by untrained personnel.
  • the scale 1 shows schematically a scale 1 with a printer 6.
  • the scale 1 comprises a housing 2 and a load plate 3 for placing goods to be weighed.
  • a weighing device is mounted in the housing 2 and determines the weight of the goods placed on the load plate 3 .
  • the scale 1 includes a stand 4 to which the printer 6 is attached and to which an input device 5 for operating the scale 1 is also attached. Instructions for the printer 6 can also be entered via the input device 5 .
  • the printer 6 comprises an output opening 7, behind which there is a cutting device (not shown) for separating a printed part of a print medium.
  • the printer 2 shows a section through a printer 6 according to the invention, in which the printer door 11 is closed.
  • the printer can post in a scale 1 be built in. Alternatively, the printer 6 can also be built into the housing of a scale below the load plate.
  • 3 shows the printer 6 when the printer door 11 is open and the Printer 6 is in service mode.
  • the printer 6 includes a receptacle 10 for a print medium wound up in a roll.
  • the printer door 11 is mounted on a hinge or a guide and can be opened and closed by the operator along a direction of movement 17 .
  • the printer 6 comprises a platen roller 14 in order to guide the print medium past a print head 15 during a printing process, which prints the print medium.
  • the printer 6 includes a cutting device 12, 13 for cutting off the print medium.
  • the cutting device comprises a housing 12 in which a movable blade is mounted and a fixed blade 13.
  • the fixed blade 13 is mounted in the printer door 11.
  • the cutter body 12 is mounted in the printer body 6 . Between the housing of the printer 6 and the printer door 11 there is an output opening 7 through which the printed part of the print medium is output.
  • the printer 6 further includes a sensor 16 which detects whether the printer door 11 is closed or open.
  • the movable blade 20 can be removed from the cutting device without tools.
  • the movable blade 20 has a cutting edge 21 .
  • the cutting edge 21 has a V shape.
  • the movable blade 20 has a recess 22.
  • a partial cut can also be made with this recess, that is, the print medium is not completely severed in the middle and is still attached to a piece of the width of the recess.
  • the severed part of the printing medium does not fall off but can be detached and torn off by an operator.
  • the moveable blade includes holes 23 which clean the fixed blade 13 as it passes.
  • the movable blade 20 includes deflectors 24 on the sides of the cutting edge 21 to guide it along the fixed blade 13 .
  • the direction of movement B in which the movable blade 20 moves after installation in the cutting device is indicated.
  • the movable blade 20 includes two Link guides 26, 27, 28 via which they can be moved in the direction of movement B by drive bolts of two drive gears.
  • Each link guide has a first section 26 which extends parallel to the direction of movement B.
  • the first portion 26 begins at an edge 30 which is the cutting edge 21 opposite.
  • the movable blade 20 has an opening 25 at this edge, into which the first section 26 opens.
  • Each link guide has a second section 27 which extends outward perpendicular to the direction of movement B of the movable blade 20 .
  • the first section has a first guide 31 which leads into the first section 26 in the form of a funnel and is thus self-guiding together with the drive bolts when the movable blade 20 is inserted into the cutting device.
  • the first section 26 has a second taper 32 .
  • a further recess 29 of the movable blade 20 creates space for a manual drive of the movable blade 20.
  • FIG 5 shows a gear for the cutting device.
  • the transmission comprises two drive gears 40, 41, each of which carries a drive pin 43, 42.
  • the drive gears 40, 41 are moved in opposite directions via a transmission by a motor with a motor gear 47 .
  • the drive bolts 43, 42 perform a movement that is mirror-symmetrical.
  • the movement of the motor gear 47 is transmitted to a further gear 46 which is connected to a first transmission gear 45 .
  • the first transmission gear 45 drives a second transmission gear 44 .
  • the first and second transmission gears 45, 44 mesh with a drive gear 40, 41, respectively.
  • About the first and the second transmission gear 45, 44 creates the opposite movement of the drive gears 40. 41.
  • the transmission includes a manual gear 48, with which the other gear 46 can be moved manually when the example the function of the engine has failed.
  • the manual gear wheel 48 is driven with a screwdriver.
  • the screw of the manual gear wheel is passed through the further recess 29 through the movable blade 20 .
  • the manual gear is no longer shown in the following drawings.
  • FIG. 6 shows the gear and the moving blade 20 in a rest position. In this position, the moving blade 20 has disappeared into the housing of the cutting device. In this position, the drive bolts 42, 43 are located at the point of intersection 28 between the first section 26 and the second section 27 of the link guides.
  • 7 Figure 12 shows the gear and the moving blade 20 in position when the moving blade 20 is extended or retracted along the direction of movement B.
  • the drive gears 40, 41 are compared to 6 rotated by a quarter turn so that the drive bolts 42, 43 are now on the outside of the drive gears 40, 41.
  • the drive bolts 42, 43 have moved along the second section 27 of the link guide and the movable blade 20 has moved along the direction of movement B in this way.
  • FIG. 9 shows the side view of the moving blade 20 in the cutting device.
  • the moving blade 20 is supported between a cutter cover plate 49 and a guide plate 50 .
  • a cutter cover plate 49 Behind the guide plate 50 the gearbox is mounted, with the drive gears 40, 41 mounted directly behind the guide plate 50.
  • the drive bolts 42, 43 reach through the guide plate 50, as will be shown below.
  • the gearbox is mounted in the cutter housing as shown below.
  • the cover plate 49 includes openings 56 for screwing to the housing.
  • the housing 12 includes guide pins 51 which specify the direction of movement for the blade 20 to be moved.
  • the housing 20 are receptacles 57, 58 for the drive gears 41, 40, a receptacle 59 for a transmission gear 44, a receptacle 60 for the other gear 46 and a transmission gear 45 and a receptacle 61 for the motor gear 47.
  • the housing includes a receptacle 52 for the guide plate 50 which is screwed into threads 53.
  • the guide plate 50 serves as a cover for the gear to keep the gears in place.
  • Figure 12 shows the guide plate 50.
  • the guide plate includes holes 54 for bolting the guide plate to the housing 12 of the cutter.
  • the guide plate 50 includes semi-circular guides for the drive pins 42, 43.
  • the guide plate 50 holds the gears of the gearbox in the housing 12 of the cutter and forms a guide for the moving blade 20.

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

Description

Die vorliegende Erfindung betrifft einen Drucker zum Bedrucken eines Druckmediums und eine Schneidvorrichtung zum Abtrennen eines bedruckten Teils des Druckmediums.The present invention relates to a printer for printing on a print medium and a cutter for severing a printed part of the print medium.

Die EP 2 842 757 B1 und US 2010/086340 A zeigen einen Drucker und eine Schneidvorrichtung zum Abtrennen eines bedruckten Druckmediums, mit einer beweglichen Klinge, die austauschbar ist. Der Austausch erfordert eine Zerlegung der Schneidvorrichtung und einen Ausbau eines Klingen-Gleitelements.the EP 2 842 757 B1 and US 2010/086340 A show a printer and a cutter for severing a printed print medium, with a movable blade that is replaceable. Replacement requires disassembly of the cutter and removal of a blade slide.

Aufgabe der Erfindung ist es, einen Drucker mit einer Schneidvorrichtung zum Abtrennen eines bedruckten Teils des Druckmediums bereitzustellen, bei dem der Austausch einer Klinge der Schneidvorrichtung einfach und werkzeuglos auch von ungeschultem Personal vorgenommen werden kann.The object of the invention is to provide a printer with a cutting device for cutting off a printed part of the print medium, in which a blade of the cutting device can be replaced easily and without tools, even by untrained personnel.

Diese Aufgabe wird durch einen Drucker nach Anspruch 1 und ein Verfahren nach Anspruch 11 gelöst.This object is solved by a printer according to claim 1 and a method according to claim 11.

Einige Ausführungsformen der Erfindung sind in den Zeichnungen beispielhaft gezeigt und nachfolgend beschrieben. Es zeigen, jeweils in schematischer Darstellung:

Fig. 1
eine Waage mit Drucker,
Fig. 2
einen Drucker für eine Waage mit geschlossener Druckertür,
Fig. 3
einen Drucker für eine Waage mit geöffneter Druckertür,
Fig. 4
eine bewegliche Klinge für eine erfindungsgemäße Schneidvorrichtung,
Fig. 5
ein Getriebe für eine erfindungsgemäße Schneidvorrichtung,
Fig. 6
das Getriebe und die bewegliche Klinge in einer Ruheposition,
Fig. 7
das Getriebe und die bewegliche Klinge in einer Position zwischen einer Ruheposition und einer Schneidposition,
Fig. 8
das Getriebe und die bewegliche Klinge in einer Schneidposition,
Fig. 9
eine erfindungsgemäße Schneidvorrichtung in einer seitlichen Ansicht,
Fig. 10
ein Gehäuse einer erfindungsgemäßen Schneidvorrichtung,
Fig. 11
eine Führungsplatte einer erfindungsgemäßen Schneidvorrichtung.
Some embodiments of the invention are shown by way of example in the drawings and described below. They show, each in a schematic representation:
1
a scale with printer,
2
a printer for a scale with the printer door closed,
3
a printer for a scale with the printer door open,
4
a movable blade for a cutting device according to the invention,
figure 5
a gear for a cutting device according to the invention,
6
the gear and movable blade in a rest position,
7
the gear and the moveable blade in a position between a rest position and a cutting position,
8
the gear and movable blade in a cutting position,
9
a cutting device according to the invention in a side view,
10
a housing of a cutting device according to the invention,
11
a guide plate of a cutting device according to the invention.

Fig. 1 zeigt schematisch eine Waage 1 mit Drucker 6. Die Waage 1 umfasst ein Gehäuse 2 und eine Lastplatte 3 zum Auflegen von zu wiegenden Waren. Im Gehäuse 2 ist eine Wiegevorrichtung angebracht, die das Gewicht der auf der Lastplatte 3 aufgelegten Waren bestimmt. Die Waage 1 umfasst ein Stativ 4 an dem der Drucker 6 befestigt ist und an dem des Weiteren eine Eingabevorrichtung 5 zum Bedienen der Waage 1 angebracht ist. Über die Eingabevorrichtung 5 können auch Anweisungen für den Drucker 6 eingegeben werden. Der Drucker 6 umfasst eine Ausgabeöffnung 7, hinter der sich eine Schneidvorrichtung (nicht gezeigt) zum Abtrennen eines bedruckten Teils eines Druckmediums befindet. 1 shows schematically a scale 1 with a printer 6. The scale 1 comprises a housing 2 and a load plate 3 for placing goods to be weighed. A weighing device is mounted in the housing 2 and determines the weight of the goods placed on the load plate 3 . The scale 1 includes a stand 4 to which the printer 6 is attached and to which an input device 5 for operating the scale 1 is also attached. Instructions for the printer 6 can also be entered via the input device 5 . The printer 6 comprises an output opening 7, behind which there is a cutting device (not shown) for separating a printed part of a print medium.

Fig. 2 zeigt einen Schnitt durch einen erfindungsgemäßen Drucker 6, bei dem die Druckertür 11 geschlossen ist. Der Drucker kann in eine Waage nach Fig. 1 eingebaut sein. Alternativ kann der Drucker 6 auch im Gehäuse einer Waage unterhalb der Lastplatte eingebaut sein. Fig. 3 zeigt den Drucker 6, wenn die Druckertür 11 geöffnet ist und sich der Drucker 6 im Servicebetrieb befindet. Der Drucker 6 umfasst eine Aufnahme 10 für ein zu einer Rolle aufgewickeltes Druckmedium. Die Druckertür 11 ist an einem Scharnier oder einer Führung gelagert und kann durch den Bediener entlang einer Bewegungsrichtung 17 geöffnet und geschlossen werden. Der Drucker 6 umfasst eine Druckwalze 14 um das Druckmedium während eines Druckvorgangs an einem Druckkopf 15 vorbeizuführen, der das Druckmedium bedruckt. Der Drucker 6 umfasst eine Schneidvorrichtung 12, 13 zum Abtrennen des Druckmediums. Die Schneidvorrichtung umfasst ein Gehäuse 12, in dem eine bewegliche Klinge gelagert ist und eine feste Klinge 13. Die feste Klinge 13 ist in der Druckertür 11 angebracht. Das Gehäuse 12 der Schneidvorrichtung ist im Gehäuse des Druckers 6 angebracht. Zwischen Gehäuse des Druckers 6 und Druckertür 11 befindet sich eine Ausgabeöffnung 7, durch die der bedruckte Teil des Druckmediums ausgegeben wird. Der Drucker 6 umfasst weiter einen Sensor 16, der detektiert ob die Druckertür 11 geschlossen oder geöffnet ist. 2 shows a section through a printer 6 according to the invention, in which the printer door 11 is closed. The printer can post in a scale 1 be built in. Alternatively, the printer 6 can also be built into the housing of a scale below the load plate. 3 shows the printer 6 when the printer door 11 is open and the Printer 6 is in service mode. The printer 6 includes a receptacle 10 for a print medium wound up in a roll. The printer door 11 is mounted on a hinge or a guide and can be opened and closed by the operator along a direction of movement 17 . The printer 6 comprises a platen roller 14 in order to guide the print medium past a print head 15 during a printing process, which prints the print medium. The printer 6 includes a cutting device 12, 13 for cutting off the print medium. The cutting device comprises a housing 12 in which a movable blade is mounted and a fixed blade 13. The fixed blade 13 is mounted in the printer door 11. The cutter body 12 is mounted in the printer body 6 . Between the housing of the printer 6 and the printer door 11 there is an output opening 7 through which the printed part of the print medium is output. The printer 6 further includes a sensor 16 which detects whether the printer door 11 is closed or open.

Fig. 4 zeigt eine bewegliche Klinge 20 für eine erfindungsgemäße Schneidvorrichtung. Die bewegliche Klinge 20 kann werkzeuglos aus der Schneidvorrichtung entfernt werden. Die bewegliche Klinge 20 weist eine Schneidkante 21 auf. Die Schneidkante 21 hat eine V-Form. Im Knickpunkt der V-Form in der Mitte der Schneidkante 21 weist die bewegliche Klinge 20 eine Ausnehmung 22 auf. Mit dieser Ausnehmung kann auch ein Teilschnitt erfolgen, das heißt, das Druckmedium wird in der Mitte nicht ganz durchtrennt und hängt an einem Stück von der Breite der Ausnehmung noch zusammen. So fällt der abgetrennte Teil des Druckmediums nicht ab, sondern kann durch einen Bediener abgenommen und abgerissen werden. Hinter der Schneidkante 21 umfasst die bewegliche Klinge Löcher 23, die die feste Klinge 13 beim vorbeibewegen reinigen. Die bewegliche Klinge 20 umfasst an den Seiten der Schneidkante 21 Abweiser 24, um sie an der festen Klinge 13 entlang zu führen. Die Bewegungsrichtung B in der sich die bewegliche Klinge 20 nach dem Einbau in die Schneidvorrichtung bewegt ist angedeutet. Die bewegliche Klinge 20 umfasst zwei Kulissenführungen 26, 27, 28 über die sie durch Antriebsbolzen von zwei Antriebszahnrädern in der Bewegungsrichtung B bewegt werden kann. Jede Kulissenführung weist einen ersten Abschnitt 26 auf, der sich parallel zur Bewegungsrichtung B erstreckt. Der erste Abschnitt 26 beginnt an einer Kante 30, die der Schneidkante 21 gegenüber liegt. Die bewegliche Klinge 20 hat an dieser Kante eine Öffnung 25, in die der erste Abschnitt 26 mündet. Jede Kulissenführung weist einen zweiten Abschnitt 27 auf, der sich senkrecht zur Bewegungsrichtung B der beweglichen Klinge 20 nach außen erstreckt. Wenn die Antriebsbolzen am Schnittpunkt 28 zwischen erstem Anschnitt 26 und zweiten Abschnitt 27 der Kulissenführung stehen, kann die bewegliche Klinge über den ersten Abschnitt 26 entnommen werden. Der erste Abschnitt weist eine erste Führung 31 auf, die Trichterförmig in den ersten Abschnitt 26 führt und somit zusammen mit den Antriebsbolzen selbstführend wirkt, wenn die bewegliche Klinge 20 in die Schneidvorrichtung eingebracht wird. Der erste Abschnitt 26 weist eine zweite Verjüngung 32 auf. Eine weitere Ausnehmung 29 der beweglichen Klinge 20 schafft Bauraum für einen manuellen Antrieb der beweglichen Klinge 20. 4 shows a movable blade 20 for a cutting device according to the invention. The movable blade 20 can be removed from the cutting device without tools. The movable blade 20 has a cutting edge 21 . The cutting edge 21 has a V shape. In the inflection point of the V-shape in the middle of the cutting edge 21, the movable blade 20 has a recess 22. A partial cut can also be made with this recess, that is, the print medium is not completely severed in the middle and is still attached to a piece of the width of the recess. Thus, the severed part of the printing medium does not fall off but can be detached and torn off by an operator. Behind the cutting edge 21, the moveable blade includes holes 23 which clean the fixed blade 13 as it passes. The movable blade 20 includes deflectors 24 on the sides of the cutting edge 21 to guide it along the fixed blade 13 . The direction of movement B in which the movable blade 20 moves after installation in the cutting device is indicated. The movable blade 20 includes two Link guides 26, 27, 28 via which they can be moved in the direction of movement B by drive bolts of two drive gears. Each link guide has a first section 26 which extends parallel to the direction of movement B. The first portion 26 begins at an edge 30 which is the cutting edge 21 opposite. The movable blade 20 has an opening 25 at this edge, into which the first section 26 opens. Each link guide has a second section 27 which extends outward perpendicular to the direction of movement B of the movable blade 20 . When the drive bolts are at the intersection point 28 between the first section 26 and the second section 27 of the link guide, the movable blade can be removed via the first section 26 . The first section has a first guide 31 which leads into the first section 26 in the form of a funnel and is thus self-guiding together with the drive bolts when the movable blade 20 is inserted into the cutting device. The first section 26 has a second taper 32 . A further recess 29 of the movable blade 20 creates space for a manual drive of the movable blade 20.

Fig. 5 zeigt ein Getriebe für die Schneidvorrichtung. Das Getriebe umfasst zwei Antriebszahnräder 40, 41, die jeweils einen Antriebsbolzen 43, 42 tragen. Die Antriebszahnräder 40, 41 werden über eine Übersetzung von einem Motor mit einem Motorzahnrad 47 in jeweils gegenläufiger Richtung bewegt. Somit führen die Antriebsbolzen 43, 42 eine Bewegung aus, die spiegelsymmetrisch ist. Die Bewegung des Motorzahnrads 47 wird auf ein weiteres Zahnrad 46 übertragen, das mit einem ersten Übersetzungszahnrad 45 verbunden ist. Das erste Übersetzungszahnrad 45 treibt ein zweites Übersetzungszahnrad 44 an. Das erste und das zweite Übersetzungszahnrad 45, 44 greifen jeweils in ein Antriebszahnrad 40, 41 ein. Über das erste und das zweite Übersetzungszahnrad 45, 44 entsteht die gegenläufige Bewegung der Antriebszahnräder 40. 41. Optional umfasst das Getriebe ein manuelles Zahnrad 48, mit dem das weitere Zahnrad 46 manuell bewegt werden kann, wenn zum Beispiel die Funktion des Motors ausgefallen ist. Dafür wird das manuelle Zahnrad 48 mit einem Schraubendreher angetrieben. Die Schaube des manuellen Zahnrads ist durch die weitere Ausnehmung 29 durch das bewegliche Messer 20 geführt. Zur Vereinfachung wird das manuelle Zahnrad in den folgenden Zeichnungen nicht mehr gezeigt. figure 5 shows a gear for the cutting device. The transmission comprises two drive gears 40, 41, each of which carries a drive pin 43, 42. The drive gears 40, 41 are moved in opposite directions via a transmission by a motor with a motor gear 47 . Thus, the drive bolts 43, 42 perform a movement that is mirror-symmetrical. The movement of the motor gear 47 is transmitted to a further gear 46 which is connected to a first transmission gear 45 . The first transmission gear 45 drives a second transmission gear 44 . The first and second transmission gears 45, 44 mesh with a drive gear 40, 41, respectively. About the first and the second transmission gear 45, 44 creates the opposite movement of the drive gears 40. 41. Optionally, the transmission includes a manual gear 48, with which the other gear 46 can be moved manually when the example the function of the engine has failed. For this, the manual gear wheel 48 is driven with a screwdriver. The screw of the manual gear wheel is passed through the further recess 29 through the movable blade 20 . For the sake of simplicity, the manual gear is no longer shown in the following drawings.

Fig. 6 zeigt das Getriebe und die bewegte Klinge 20 in einer Ruheposition. In dieser Position ist die bewegte Klinge 20 im Gehäuse der Schneidvorrichtung verschwunden. Die Antriebsbolzen 42, 43 befinden sich in dieser Position im Schnittpunkt 28 zwischen dem ersten Abschnitt 26 und dem zweiten Abschnitt 27 der Kulissenführungen. Fig. 7 zeigt das Getriebe und die bewegte Klinge 20 in einer Position, wenn die bewegte Klinge 20 entlang der Bewegungsrichtung B ausgefahren oder eingefahren wird. Die Antriebszahnräder 40, 41 sind im Vergleich zu Fig. 6 um eine Viertelumdrehung verdreht, so dass die Antriebsbolzen 42, 43 jetzt auf der Außenseite der Antriebszahnräder 40, 41 sind. Die Antriebsbolzen 42, 43 haben sich entlang des zweiten Abschnitts 27 der Kulissenführung bewegt und die bewegliche Klinge 20 so entlang der Bewegungsrichtung B bewegt. Fig. 8 zeigt das Getriebe und die bewegte Klinge in der Schneidposition bzw. in der Entnahmeposition. Die Antriebszahnräder 40, 41 sind noch einmal eine Viertelumdrehung weitergedreht. Die Antriebsbolzen 42, 43 sind nun oben an den Antriebszahnrädern 40, 41. Die Antriebsbolzen 42, 43 sind nun wieder am Schnittpunkt 28 zwischen dem ersten Abschnitt 26 und dem zweiten Abschnitt 27 der Kulissenführungen. In den Figuren 6-8 sind die Zahnräder des Getriebes ortsfest in der Schneidvorrichtung angebracht. Es ist zu sehen, dass durch eine Drehung des Getriebes die Antriebsbolzen 42, 43 sich entlang einer Kreisbahn bewegen und die bewegte Klinge 20 im Vergleich zum Getriebe nach vorne in die Schneidposition bewegen. Fig. 8 zeigt die bewegte Klinge 20 in der Schneidposition. Die Schneidposition ist gleichzeitig auch die Entnahmeposition. Jedoch muss zum Klingenwechsel die Druckertür 11 geöffnet sein und die bewegte Klinge 20 in der Entnahmeposition verbleiben, während im Betrieb die Druckertür 11 geschlossen ist und die bewegte Klinge 20 nur kurz in die Schneidposition bewegt wird und sogleich wieder zurück in die Ruheposition zurückbewegt wird. 6 shows the gear and the moving blade 20 in a rest position. In this position, the moving blade 20 has disappeared into the housing of the cutting device. In this position, the drive bolts 42, 43 are located at the point of intersection 28 between the first section 26 and the second section 27 of the link guides. 7 Figure 12 shows the gear and the moving blade 20 in position when the moving blade 20 is extended or retracted along the direction of movement B. The drive gears 40, 41 are compared to 6 rotated by a quarter turn so that the drive bolts 42, 43 are now on the outside of the drive gears 40, 41. The drive bolts 42, 43 have moved along the second section 27 of the link guide and the movable blade 20 has moved along the direction of movement B in this way. 8 shows the gear and the moving blade in the cutting position and in the removal position. The drive gears 40, 41 are once again turned a quarter of a turn. The drive bolts 42, 43 are now at the top of the drive gears 40, 41. The drive bolts 42, 43 are now back at the intersection 28 between the first section 26 and the second section 27 of the link guides. In the Figures 6-8 the gear wheels of the gearbox are fixed in place in the cutting device. It can be seen that rotation of the gearbox causes the drive pins 42, 43 to move along a circular path and move the moving blade 20 forward of the gearbox into the cutting position. 8 shows the moving blade 20 in the cutting position. The cutting position is also the removal position. However, to change the blade, the printer door 11 must be open and the moving blade 20 must remain in the removal position while in the Operation the printer door 11 is closed and the moving blade 20 is only briefly moved into the cutting position and is immediately moved back to the rest position.

Fig. 9 zeigt die Seitenansicht der bewegten Klinge 20 in der Schneidvorrichtung. Die bewegte Klinge 20 ist zwischen einer Abdeckplatte 49 der Schneidvorrichtung und einer Führungsplatte 50 gehaltert. Somit ist nur eine Bewegung der bewegten Klinge 20 in der Bewegungsrichtung B möglich. Hinter der Führungsplatte 50 ist das Getriebe angebracht, wobei die Antriebszahnräder 40, 41 direkt nach der Führungsplatte 50 angebracht sind. Die Antriebsbolzen 42, 43, greifen durch die Führungsplatte 50 durch, wie im Folgenden noch gezeigt ist. Das Getriebe ist im Gehäuse der Schneidvorrichtung gehaltert, wie im Folgenden noch gezeigt ist. Die Abdeckplatte 49 umfasst Öffnungen 56 zur Verschraubung mit dem Gehäuse. 9 shows the side view of the moving blade 20 in the cutting device. The moving blade 20 is supported between a cutter cover plate 49 and a guide plate 50 . Thus only a movement of the moving blade 20 in the direction of movement B is possible. Behind the guide plate 50 the gearbox is mounted, with the drive gears 40, 41 mounted directly behind the guide plate 50. The drive bolts 42, 43 reach through the guide plate 50, as will be shown below. The gearbox is mounted in the cutter housing as shown below. The cover plate 49 includes openings 56 for screwing to the housing.

Fig. 10 zeigt das Gehäuse 12 der Schneidvorrichtung. Das Gehäuse 12 umfasst Führungsstifte 51, die die Bewegungsrichtung für die bewegte Klinge 20 vorgeben. Im Gehäuse 20 sind Aufnahmen 57, 58 für die Antriebszahnräder 41, 40, eine Aufnahme 59 für ein Übersetzungszahnrad 44, eine Aufnahme 60 für das weitere Zahnrad 46 und ein Übersetzungszahnrad 45 sowie eine Aufnahme 61 für das Motorzahnrad 47. Außerdem ist eine Aufnahme 62 für das manuelle Zahnrad 48 des Getriebes gezeigt. Das Gehäuse umfasst eine Aufnahme 52 für die Führungsplatte 50, die in Gewinden 53 verschraubt wird. Die Führungsplatte 50 dient als Abdeckung für das Getriebe um die Zahnräder ortsfest zu halten. 10 shows the housing 12 of the cutting device. The housing 12 includes guide pins 51 which specify the direction of movement for the blade 20 to be moved. In the housing 20 are receptacles 57, 58 for the drive gears 41, 40, a receptacle 59 for a transmission gear 44, a receptacle 60 for the other gear 46 and a transmission gear 45 and a receptacle 61 for the motor gear 47. There is also a receptacle 62 for the manual gear 48 of the gearbox is shown. The housing includes a receptacle 52 for the guide plate 50 which is screwed into threads 53. The guide plate 50 serves as a cover for the gear to keep the gears in place.

Fig. 11 zeigt die Führungsplatte 50. Die Führungsplatte umfasst Löcher 54 zum Verschrauben der Führungsplatte im Gehäuse 12 der Schneidvorrichtung. Die Führungsplatte 50 umfasst halbkreisförmige Führungen für die Antriebsbolzen 42, 43. Die Führungsplatte 50 hält die Zahnräder des Getriebes im Gehäuse 12 der Schneidvorrichtung und bildet eine Führung für die bewegte Klinge 20. 11 Figure 12 shows the guide plate 50. The guide plate includes holes 54 for bolting the guide plate to the housing 12 of the cutter. The guide plate 50 includes semi-circular guides for the drive pins 42, 43. The guide plate 50 holds the gears of the gearbox in the housing 12 of the cutter and forms a guide for the moving blade 20.

Claims (13)

  1. Printer for printing a printing medium comprising a holder for the printing medium wound into a roll,
    a print head (15) for printing the printing medium during a printing operation,
    a print roller (14) to guide the printing medium past the print head (15) during the printing operation, and
    a cutting device (12, 13) for severing a printed part of the printing medium, wherein the cutting device comprises a stationary blade (13) and a blade (20) that can be moved against the stationary blade (13), wherein the cutting device comprises a drive motor, by means of which the movable blade (20) can be moved from a rest position into a cutting position and back, and wherein
    a rotational movement of the drive motor is converted into a linear movement of the movable blade (20) by means of a gear mechanism (40, 41, 44, 45, 46) and at least one drive pin (42, 42), wherein the movement path of the at least one drive pin (42, 43) is circular or elliptical and wherein the movable blade (20) comprises a slotted guide (26, 27, 28), in which the drive pin (42, 43) engages, characterized
    in that the slotted guide extends in a first section from one edge of the movable blade, which is opposite a cutting edge of the movable blade, parallel to the direction of movement of the movable blade, and
    in that the gear mechanism is configured in such a way that, by means of a rotational movement of the drive motor, the at least one drive pin can be moved into a removal position, wherein, in the removal position, the at least one drive pin engages in the first section of the slotted guide.
  2. Printer according to Claim 1, characterized in that the slotted guide has a second section, of which the extension direction differs from the direction of movement of the movable blade and of which the extension direction is preferably perpendicular to the direction of movement of the movable blade.
  3. Printer according to Claim 1 or 2, characterized in that the gear mechanism drives a second drive pin, wherein the second drive pin engages in a second slotted guide.
  4. Printer according to Claim 3, characterized in that the movement paths of the two drive pins extend mirror-symmetrically along an axis which is parallel to the direction of movement of the movable blade, and in that the two slotted guides are arranged in the movable blade mirror-symmetrically to this axis.
  5. Printer according to one of Claims 1 to 4, characterized
    in that the printer comprises a printer housing and a printer door, wherein the printer door can execute a rotational movement to open the printer door, and in that the movable blade is arranged in the printer housing and the fixed blade is arranged in the printer door, or in that the movable blade is arranged in the printer door and the fixed blade is arranged in the printer housing.
  6. Printer according to one of Claims 1 to 5, characterized
    in that the movable blade is designed in one piece and slides in a guide of the cutting device, wherein the direction of movement of the movable blade is limited to one direction by the guide.
  7. Printer according to one of Claims 1 to 6, characterized
    in that a cutting edge of the movable blade is formed in a V shape and has a cut-out at the vertex of the V shape.
  8. Printer according to one of Claims 1 to 7, characterized
    in that the printer comprises a sensor for monitoring the printer door and the movement of the at least one drive pin into the removal position by the drive motor is possible only when the printer door is open.
  9. Printer according to one of Claims 1 to 8, characterized
    in that the movable blade is guided between a cover plate and a guide plate, wherein the guide plate and the cover plate determine the lateral position of the movable blade in the printer, and in that the direction of movement of the movable blade is defined by a lateral guide.
  10. Printer according to one of Claims 1 to 9, characterized
    in that the gear mechanism comprises two identical drive gear wheels, which each hold a drive pin and are arranged symmetrically relative to the direction of movement of the movable blade, and in that the gear mechanism comprises two identical transmission gear wheels, which engage reciprocally in each other and wherein each transmission gear wheel engages in a drive gear wheel, and wherein the drive motor drives a transmission gear wheel by means of a motor gear wheel.
  11. Method for changing a movable blade of a cutting device of a printer, wherein the cutting device comprises the movable blade (20) and a drive motor, by means of which the movable blade (20) can be moved from a rest position into a cutting position and back, wherein the printer is designed to convert a rotational movement of the drive motor into a linear movement of the movable blade (20) by means of a gear mechanism (40, 41, 44, 45, 46) and at least one drive pin (42, 42), characterized in that it comprises the following steps:
    - receiving a knife change instruction on an input device and transferring the printer into a service mode,
    - rotating the drive motor of the cutting device into a position in which the drive pins are in a removal position,
    - receiving an instruction that the cutting device is to transfer into a printing mode again,
    - rotating the drive motor into a position in which the drive pins are in the rest position, and
    - transferring the printer into the printing mode.
  12. Method according to Claim 11, characterized in that before the drive motor is rotated into a position in which the drive pins are in the removal position, the method comprises a step of checking a sensor as to whether the printer door is open.
  13. Method according to Claim 11 or 12, characterized in that before the printer is transferred into the printing mode, the method comprises a step of checking a sensor as to whether the printer door is closed.
EP17211267.4A 2017-12-31 2017-12-31 Cutting device for continuous labels Active EP3505355B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP17211267.4A EP3505355B1 (en) 2017-12-31 2017-12-31 Cutting device for continuous labels
US16/211,264 US10717624B2 (en) 2017-12-31 2018-12-06 Cutting device for continuous labels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17211267.4A EP3505355B1 (en) 2017-12-31 2017-12-31 Cutting device for continuous labels

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EP3505355A1 EP3505355A1 (en) 2019-07-03
EP3505355B1 true EP3505355B1 (en) 2022-01-26

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2935692T3 (en) 2020-07-10 2023-03-09 Bizerba Se & Co Kg Procedure to separate labels
EP4434699A2 (en) 2020-07-10 2024-09-25 Bizerba SE & Co. KG Cutter for self-adhesive, unsupported endless belt labels
EP4105030B1 (en) * 2020-09-11 2023-11-01 Bizerba SE & Co. KG Label printer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4312597A (en) * 1977-11-06 1982-01-26 Copal Company Limited Printer
JP3629117B2 (en) * 1997-03-18 2005-03-16 富士通コンポーネント株式会社 Sheet cutter
JP3800891B2 (en) * 1999-10-29 2006-07-26 スター精密株式会社 Printer
JP3730153B2 (en) * 2001-10-18 2005-12-21 セイコーインスツル株式会社 Printer cutter device
JP4455091B2 (en) * 2004-02-20 2010-04-21 スター精密株式会社 Paper cutter
JP4715457B2 (en) * 2005-11-16 2011-07-06 セイコーエプソン株式会社 Sheet cutting apparatus and printing apparatus provided with the same
JP4577436B2 (en) * 2008-10-08 2010-11-10 ブラザー工業株式会社 Cutting mechanism for printing apparatus, and printing apparatus having the same
KR101282299B1 (en) * 2012-12-21 2013-07-10 이일복 Cutter of printer
JP6293439B2 (en) 2013-08-28 2018-03-14 富士通コンポーネント株式会社 Printer device

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US10717624B2 (en) 2020-07-21
US20190202654A1 (en) 2019-07-04

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