WO2005058563A1 - Longitudinal cutter with a vertically displaceable blade and counter-roller - Google Patents

Longitudinal cutter with a vertically displaceable blade and counter-roller Download PDF

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Publication number
WO2005058563A1
WO2005058563A1 PCT/EP2004/013520 EP2004013520W WO2005058563A1 WO 2005058563 A1 WO2005058563 A1 WO 2005058563A1 EP 2004013520 W EP2004013520 W EP 2004013520W WO 2005058563 A1 WO2005058563 A1 WO 2005058563A1
Authority
WO
WIPO (PCT)
Prior art keywords
packaging
counter
knife
roller
vertically displaceable
Prior art date
Application number
PCT/EP2004/013520
Other languages
German (de)
French (fr)
Inventor
Klaus Meyer
Original Assignee
Cfs Germany Gmbh
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 Cfs Germany Gmbh filed Critical Cfs Germany Gmbh
Priority to US10/583,161 priority Critical patent/US20080066427A1/en
Priority to EP04820406A priority patent/EP1697098A1/en
Publication of WO2005058563A1 publication Critical patent/WO2005058563A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/46—Measuring, controlling or regulating
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
    • B65B61/08—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting using rotary cutters
    • 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
    • B26D1/24—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 another disc cutter
    • B26D1/245—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 another disc cutter 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D2007/2664—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member for radial adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—Moulds

Definitions

  • the present invention relates to a slitter consisting of a knife and a counter roller. Furthermore, the present invention relates to a packaging machine with which a plurality of packages and / or packaging troughs can be produced from packaging film and can be separated with at least one longitudinal and one cross cutter, the longitudinal cutter consisting of a knife and a counter roller.
  • the packaging generally consists of a so-called packaging tray, which holds the food and which is closed with a cover film.
  • the packaging troughs are generally deep-drawn from a packaging film, it being possible for a plurality of packaging troughs to be arranged next to one another in relation to the transport direction of the film. These packaging troughs are then either filled with the goods to be packaged, sealed with a cover film and separated, or the packaging troughs are separated without filling immediately after they have been produced.
  • the finished packaging or the packaging troughs are separated with at least one slitter and one cross cutter, the slitter making the cut in the film running direction and the cross cutter making the cut transverse to the film running direction.
  • Packaging machines are nowadays equipped with a large number of different tools, in particular deep-drawing and sealing tools with a wide variety of forms of packaging trays and formats - i.e. Number and arrangement of the thermoformed and / or sealed packaging trays, operable.
  • the machine parameters or the subsequent tools must be adjusted accordingly. This was previously not possible, particularly in the case of the longitudinal cutters according to the prior art.
  • the object of the present invention is therefore to provide a slitter which does not have the disadvantages of the prior art.
  • the object is achieved with a slitter according to claim 1.
  • Preferred embodiments of the slitter according to the invention are claimed in subclaims 2 to 5.
  • the slitter of the invention is simple and inexpensive to manufacture and operate. When changing formats, no longer or additionally required slitters are lowered or raised vertically, so that the changeover to new formats is very easy with the slitter according to the invention.
  • the slitter of the invention cuts foils very efficiently.
  • the slitter has a knife and a counter-roller which interacts with the knife.
  • the film is cut and / or pressed apart between the knife and the counter roller.
  • both the knife and the counter roller are preferably driven in rotation and are each vertically displaceable.
  • Vertically displaceable in the sense of the invention means that the knife and the counter-roller can each be moved away from the film web and towards the film web. The movement they perform does not have to be a pure vertical movement, but only has a vertical component.
  • the knife and the counter roller can each be moved on a circular path or diagonally upwards or downwards and thus also vertically.
  • the knife is preferably located above and the counter roller below the film web to be cut.
  • the knife and the counter-roller are preferably each displaced by a drive means.
  • a drive means Any means familiar to a person skilled in the art, with which a movement of the knife or the counter-roller, the one Vertical component can be achieved.
  • this can be an electric, hydraulic, or electric linear cylinder.
  • the drive can also be carried out by an electric motor with a corresponding gear.
  • Another object of the present invention is a packaging machine for the production of packaging trays or packaging made of packaging film, the packaging after filling and sealing with a cover film or the packaging trays before filling with a slitter and a cross cutter can be separated and the at least one slitter according to the invention having.
  • the packaging machine according to the invention can be adjusted very flexibly to the packaging formats to be produced in each case.
  • the packaging machine according to the invention is simple and inexpensive to manufacture and operate.
  • the fact that both the knife and the counter roller are driven means that the film webs from which the packaging troughs are produced and / or cover films of almost any composition and thickness can be reliably severed.
  • the packaging machine according to the invention has at least two longitudinal cutters, the knives and counter-rollers of which are each drivable and vertically displaceable.
  • the knives and the counter roller of a slitter are each individually drivable and / or individually displaceable.
  • This embodiment of the packaging machine according to the invention has the advantage that the drives and the respective vertical position and the knife and the counter roller can be set in a completely flexible manner, so that when changing the format, the knives or the associated counter rollers can be individually engaged or separated from one another.
  • the knives and the counter-roller can be driven at least partially together and / or at least partially vertically displaceable together.
  • This embodiment of the present invention has the advantage that the knives or the counter-rollers can be moved in groups into the cutting position or out of the cutting position.
  • the drive and / or the vertical displacement of the knife or the counter roller takes place automatically on the basis of the selected shape of the packaging tray and / or the format.
  • Format in the sense of the invention means the number of packaging troughs that are worked into the respective packaging film in parallel and accordingly have to be cut apart with one or more slitters.
  • the operator can provide information about the format and shape of the packaging, for example via the display of the respective packaging machine, which is connected to a computer that controls the packaging machine.
  • the tools for example the deep-drawing tool with which the packaging troughs are formed, have a data carrier, for example a transponder, in which data about the shape of the packaging trough and the respective format are stored and can be read out be read by a receiver of the packaging machine, who is connected to a computer and with which the slitter is automatically adjusted.
  • the packaging machine automatically brings certain knives and their counter-rollers into engagement with one another or moves them out of the cutting plane.
  • Figure 1 shows the forming station of a packaging machine.
  • Figure 2 shows an embodiment of the slitter according to the invention.
  • Figure 3 shows a further embodiment of the slitter according to the invention, in which the counter-rollers are moved vertically together.
  • FIG. 4 shows another embodiment of the slitter according to the invention according to FIG. 3
  • FIG. 1 shows part of a packaging machine according to the invention, the deep-drawing station.
  • the film F1 is unwound from a roll V1 and, for example, is cyclically transported to the deep-drawing station T with a chain drive, as shown by the arrow.
  • the film is fixed there and heated with heating elements 18, and the film can also be heated in front of the deep-drawing station.
  • the deep-drawing mold 19, with which the packaging troughs are deep-drawn, is located on a lifting device 20.
  • the data of a sensor chip, which is arranged in the tool 20 are transmitted via a transmitting and receiving system (not shown) is queried. This data is then processed in a computer.
  • This computer controls the automatic setting of the longitudinal cutting device, for example, so that they are adapted to the shape of the packaging tray produced and to the format.
  • the packaging film is rolled off in cycles and the packaging trays are molded into the packaging film.
  • the tool 19 is designed such that a plurality of at least two packaging troughs are produced one behind the other in the paper plane.
  • the packaging troughs are transported out of the deep-drawing station and then, if necessary, filled with a product to be packed and sealed with a cover film.
  • the packaging produced in this way is then cut apart by the slitter shown in FIGS. 2 to 4 in the running direction of the film. With a cross cutter (not shown), the packaging troughs are separated across the transport direction of the film.
  • the slitters according to the invention are only used in a so-called tray former.
  • the manufactured Packaging troughs 21 are not filled after the deep-drawing station, but are separated with slitters according to the invention and a cross cutter and can then be filled and sealed, for example, in a so-called traysealer.
  • Figure 2 shows a slitter according to the invention, which has a knife 2 and a counter roller 3.
  • the blade of the knife 2 presses against the roller 3 and thereby cuts the film (not shown) which is cyclically transported between the knife and the counter roller, as shown by the arrow “LR”.
  • the knife 2 and the counter roller 3 become driven in each case by the drive means 5 or 6, in the present case gearwheels which are each connected to a motor (not shown), for which purpose the teeth of the gearwheel 5 engage in the teeth of the gearwheel 7 which is connected to the knife in a rotationally fixed manner
  • the teeth of the gear wheel 6 engage in the teeth of the gear wheel 8, which is connected in a rotationally fixed manner to the counter roller 3.
  • the counter roller or the knife can be moved vertically with the pneumatic cylinders 4, 9, the gear wheel 8 on the gear wheel 6 and the gear 7 rolls on the gear 5 and thereby the knife 2 or the counter-roller 5 are moved from the film web 6 or to the film web.
  • FIG. 3 shows a further embodiment of the slitter according to the invention.
  • the counter-rollers 3 are arranged on a common shaft 11, which can be driven, so that all longitudinal cutters are driven together.
  • the person skilled in the art recognizes that the counter-rollers 3 can also be rotatably mounted on the axle 11 and then each, or in part together, have a drive which is not shown.
  • the counter-rollers 3 cooperate with knives 2, each of which is driven and which, as represented by the double arrow 17, are arranged to be vertically displaceable.
  • the shaft or axis 11 is laterally supported by the bearings 10. In these bearings there is a link 12, in the present case an elongated hole, which guides the shaft or axis 11 during its horizontal movement.
  • FIG. 4 shows a further embodiment of the slitter according to the invention, which essentially corresponds to the slitter according to FIG. 3, wherein in the present case the movement of the shaft 11 is not guided by a link, but rather the shaft 11 is connected to a roller 14 which rolls on a roller 13 which is connected to a shaft 16.
  • the movement of the roller 13 is represented by the double arrow arranged in it.
  • a belt 15 pulls the roller 14 against the roller 13.
  • the vertical movement of the counter roller is driven by the cylinders 4.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

The invention relates to a packaging machine which is used to produce several packagings and/or trough-shaped packaging elements from packaging film and which can be separated from each other by means of a longitudinal and transversal cutter. The longitudinal cutter consists of a blade (2) and a counter-roller (3) which are driven and which are vertically displaceable.

Description

ÄNGSSCHNEIDΞR MIT VERTIKAL VERSCHIEBBAREN MESSER UND GEGENWALZE ANGING CUTTER WITH VERTICAL SLIDING KNIFE AND COUNTER ROLLER
Die vorliegende Erfindung betrifft einen Längsschneider bestehend aus einem Messer und einer Gegenwalze. Des weiteren betrifft die vorliegende Erfindung eine Verpackungsmaschine, mit der mehrere Verpackungen und/oder Verpackungsmulden aus Verpackungsfolie herstellbar und mit mindestens einem Längs- und einem Querschneider vereinzelbar sind, wobei der Längsschneider aus einem Messer und einer Gegenwalze besteht.The present invention relates to a slitter consisting of a knife and a counter roller. Furthermore, the present invention relates to a packaging machine with which a plurality of packages and / or packaging troughs can be produced from packaging film and can be separated with at least one longitudinal and one cross cutter, the longitudinal cutter consisting of a knife and a counter roller.
Lebensmittel werden heutzutage oftmals in Kunststoffverpackungen angeboten, um deren Haltbarkeit zu erhöhen. Die Verpackungen bestehen in der Regel aus einer sogenannten Verpackungsmulde, die die Lebensmittel aufnimmt und die mit einer Deckelfolie verschlossen wird. Die Verpackungsmulden werden in der Regel aus einer Verpackungsfolie tiefgezogen, wobei mehrere Verpackungsmulden bezogen auf die Transportrichtung der Folie nebeneinander angeordnet sein können. Diese Verpackungsmulden werden dann entweder mit dem Verpackungsgut befüllt, mit einer Deckelfolie versiegelt und vereinzelt oder die Verpackungsmulden werden unmittelbar nach ihrer Herstellung unbefüllt vereinzelt. Die Vereinzelung der fertigen Verpackungen oder der Verpackungsmulden erfolgt mit mindestens einem Längsund einem Querschneider, wobei der Längsschneider den Schnitt in Folienlaufrichtung und der Querschneider den Schnitt quer zur Folienlaufrichtung vornimmt.Nowadays, food is often offered in plastic packaging to increase its shelf life. The packaging generally consists of a so-called packaging tray, which holds the food and which is closed with a cover film. The packaging troughs are generally deep-drawn from a packaging film, it being possible for a plurality of packaging troughs to be arranged next to one another in relation to the transport direction of the film. These packaging troughs are then either filled with the goods to be packaged, sealed with a cover film and separated, or the packaging troughs are separated without filling immediately after they have been produced. The finished packaging or the packaging troughs are separated with at least one slitter and one cross cutter, the slitter making the cut in the film running direction and the cross cutter making the cut transverse to the film running direction.
Verpackungsmaschinen sind heutzutage mit einer Vielzahl von unterschiedlichen Werkzeugen, insbesondere Tiefzieh- und Siegelwerkzeugen mit unterschiedlichsten Formen der Verpackungsmulden und Formaten- d.h. Anzahl und Anordnung der bei einem Takt tiefgezogenen und/oder gesiegelten Verpackungsmulden-, betreibbar. Bei einem Wechsel dieser Werkzeuge müssen die Maschinenparameter bzw. die nachfolgenden Werkzeuge entsprechend angepasst werden. Dies war insbesondere bei den Längsschneidern gemäß dem Stand der Technik bisher nicht möglich.Packaging machines are nowadays equipped with a large number of different tools, in particular deep-drawing and sealing tools with a wide variety of forms of packaging trays and formats - i.e. Number and arrangement of the thermoformed and / or sealed packaging trays, operable. When changing these tools, the machine parameters or the subsequent tools must be adjusted accordingly. This was previously not possible, particularly in the case of the longitudinal cutters according to the prior art.
Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde, einen Längsschneider zur Verfügung zu stellen, der die Nachteile des Standes der Technik nicht aufweist. Gelöst wird die Aufgabe mit einem Längsschneider gemäß Anspruch 1. Bevorzugte Ausführungsform des erfindungsgemäßen Längsschneiders sind in den Unteransprüchen 2 bis 5 beansprucht.The object of the present invention is therefore to provide a slitter which does not have the disadvantages of the prior art. The object is achieved with a slitter according to claim 1. Preferred embodiments of the slitter according to the invention are claimed in subclaims 2 to 5.
Es war für den Fachmann überaus erstaunlich und nicht zu erwarten, dass der erfindungsgemäße Längsschneider sehr flexibel einsetzbar ist. Der erfindungsgemäße Längsschneider ist einfach und kostengünstig herzustellen und zu betreiben. Bei einem Formatwechsel werden nicht mehr bzw. zusätzlich benötigte Längsschneider vertikal abgesenkt oder angehoben, so dass die Umstellung auf neue Formate mit dem erfindungsgemäßen Längsschneider sehr einfach möglich ist. Der erfindungsgemäße Längsschneider zerteilt Folien sehr effizient.It was extremely surprising for the person skilled in the art and it was not to be expected that the slitter according to the invention can be used very flexibly. The slitter of the invention is simple and inexpensive to manufacture and operate. When changing formats, no longer or additionally required slitters are lowered or raised vertically, so that the changeover to new formats is very easy with the slitter according to the invention. The slitter of the invention cuts foils very efficiently.
Erfindungsgemäß weist der Längsschneider ein Messer und eine Gegenwalze auf, die mit dem Messer zusammenwirkt. Zwischen dem Messer und der Gegenwalze wird die Folie zerschnitten und/oder auseinander gedrückt. Erfindungsgemäß sind sowohl das Messer als auch die Gegenwalze vorzugsweise rotativ angetrieben und jeweils vertikal verschiebbar. Vertikal verschiebbar im Sinne der Erfindung bedeutet, dass das Messer und die Gegenwalze jeweils von der Folienbahn weg und auf die Folienbahn zu bewegt werden können. Die Bewegung, die sie dabei ausführen, muss keine reine Vertikalbewegung sein, sondern muss lediglich eine vertikale Komponente aufweisen. Beispielsweise können das Messer und die Gegenwalze jeweils auf einer Kreisbahn oder schräg nach oben bzw. unten und damit auch vertikal verschoben werden. Vorzugsweise befindet sich das Messer oberhalb und die Gegenwalze unterhalb der zu durchtrennenden Folienbahn. Der Fachmann erkennt, dass jedoch auch eine umgekehrte Anordnung denkbar ist. Das Messer und die dazugehörige Gegenwalze müssen nicht synchron vertikal verschoben werden. Beispielsweise ist es denkbar, dass die Gegenwalze vertikal verschoben wird, während die Position des Messers unverändert bleibt. Vorzugsweise werden jedoch sowohl das Messer als auch dessen Gegenwalze vertikal verschoben.According to the invention, the slitter has a knife and a counter-roller which interacts with the knife. The film is cut and / or pressed apart between the knife and the counter roller. According to the invention, both the knife and the counter roller are preferably driven in rotation and are each vertically displaceable. Vertically displaceable in the sense of the invention means that the knife and the counter-roller can each be moved away from the film web and towards the film web. The movement they perform does not have to be a pure vertical movement, but only has a vertical component. For example, the knife and the counter roller can each be moved on a circular path or diagonally upwards or downwards and thus also vertically. The knife is preferably located above and the counter roller below the film web to be cut. Those skilled in the art will recognize that an inverted arrangement is also conceivable. The knife and the associated counter roller do not have to be moved vertically synchronously. For example, it is conceivable that the counter roller is displaced vertically while the position of the knife remains unchanged. However, both the knife and its counter roller are preferably displaced vertically.
Vorzugsweise erfolgt die Verschiebung des Messers und der Gegenwalze jeweils durch ein Antriebsmittel. Als Antriebsmittel kommt jedes dem Fachmann geläufige Mittel in Frage, mit dem eine Bewegung des Messers bzw. der Gegenwalze, die eine Vertikalkomponente aufweist, erzielbar ist. Beispielsweise kann das ein Elektro-, Hydraulik-, oder Elektrolinearzylinder sein. Des weiteren kann der Antrieb auch durch einen Elektromotor mit einem entsprechenden Getriebe erfolgen.The knife and the counter-roller are preferably each displaced by a drive means. Any means familiar to a person skilled in the art, with which a movement of the knife or the counter-roller, the one Vertical component can be achieved. For example, this can be an electric, hydraulic, or electric linear cylinder. Furthermore, the drive can also be carried out by an electric motor with a corresponding gear.
Ein weiterer Gegenstand der vorliegenden Erfindung ist eine Verpackungsmaschine zur Herstellung von Verpackungsmulden oder Verpackungen aus Verpackungsfolie, wobei die Verpackung nach dem Befüllen und Versiegeln mit einer Deckelfolie oder die Verpackungsmulden vor dem Befüllen mit einem Längs- und einem Querschneider vereinzelbar sind und die mindestens einen erfindungsgemäßen Längsschneider aufweist.Another object of the present invention is a packaging machine for the production of packaging trays or packaging made of packaging film, the packaging after filling and sealing with a cover film or the packaging trays before filling with a slitter and a cross cutter can be separated and the at least one slitter according to the invention having.
Es war für den Fachmann überaus erstaunlich und nicht zu erwarten, dass die erfindungsgemäße Verpackungsmaschine sehr flexibel auf die jeweils zu produzierenden Verpackungsformate einstellbar ist. Die erfindungsgemäße Verpackungsmaschine ist einfach und kostengünstig herzustellen und zu betreiben. Dadurch, dass sowohl das Messer als auch die Gegenwalze angetrieben sind, können die Folienbahnen, aus denen die Verpackungsmulden hergestellt werden und/oder Deckelfolien nahezu beliebiger Zusammensetzung und Dicke sicher durchtrennt werden.It was extremely surprising for the person skilled in the art and it was not to be expected that the packaging machine according to the invention can be adjusted very flexibly to the packaging formats to be produced in each case. The packaging machine according to the invention is simple and inexpensive to manufacture and operate. The fact that both the knife and the counter roller are driven means that the film webs from which the packaging troughs are produced and / or cover films of almost any composition and thickness can be reliably severed.
Vorzugsweise werden mit der erfindungsgemäßen Verpackungsmaschine drei oder mehr Verpackungsmulden, ggf. Verpackungen nebeneinander, d. h. quer zur Laufrichtung der Folie hergestellt. Dementsprechend weist die erfindungsgemäße Verpackungsmaschine mindestens zwei Längsschneider auf, deren Messer und Gegenwalzen jeweils antreibbar und vertikal verschiebbar sind.Preferably, with the packaging machine according to the invention, three or more packaging troughs, optionally packaging next to one another, i. H. made transverse to the direction of the film. Accordingly, the packaging machine according to the invention has at least two longitudinal cutters, the knives and counter-rollers of which are each drivable and vertically displaceable.
In einer besonders bevorzugten Ausführungsform sind die Messer und die Gegenwalze eines Längsschneiders jeweils einzeln antreibbar und/oder jeweils einzeln verschiebbar. Dieser Ausführungsform der erfindungsgemäßen Verpackungsmaschine hat den Vorteil, dass die Antriebe und die jeweilige vertikale Position und des Messers und der Gegenwalze völlig flexibel einstellbar sind, so dass bei einem Formatwechsel die Messer bzw. die dazugehörigen Gegenwalzen einzeln in Eingriff zueinander oder voneinander getrennt werden können . In einer anderen bevorzugten Ausführungsform der erfindungsgemäßen Verpackungsmaschine, die mehrere Längsschneider aufweist, sind die Messer und die Gegenwalze zumindest teilweise gemeinsam antreibbar und/oder zumindest teilweise gemeinsam vertikal verschiebbar. Diese Ausführungsform der vorliegenden Erfindung hat den Vorteil, dass die Messer bzw. die Gegenwalzen gruppenweise in die Schneidposition bzw. aus der Schneidposition heraus bewegt werden können.In a particularly preferred embodiment, the knives and the counter roller of a slitter are each individually drivable and / or individually displaceable. This embodiment of the packaging machine according to the invention has the advantage that the drives and the respective vertical position and the knife and the counter roller can be set in a completely flexible manner, so that when changing the format, the knives or the associated counter rollers can be individually engaged or separated from one another. In another preferred embodiment of the packaging machine according to the invention, which has a plurality of longitudinal cutters, the knives and the counter-roller can be driven at least partially together and / or at least partially vertically displaceable together. This embodiment of the present invention has the advantage that the knives or the counter-rollers can be moved in groups into the cutting position or out of the cutting position.
Vorzugsweise erfolgt der Antrieb und/oder die vertikale Verschiebung des Messers bzw. der Gegenwalze automatisch anhand der gewählten Form der Verpackungsmulde und/oder des Formates. Format im Sinne der Erfindung bedeutet die Anzahl der Verpackungsmulden, die parallel nebeneinander in die jeweilige Verpackungsfolie eingearbeitet und dementsprechend dann mit einem oder mehreren Längsschneider(n) auseinander geschnitten werden müssen.Preferably, the drive and / or the vertical displacement of the knife or the counter roller takes place automatically on the basis of the selected shape of the packaging tray and / or the format. Format in the sense of the invention means the number of packaging troughs that are worked into the respective packaging film in parallel and accordingly have to be cut apart with one or more slitters.
Die Information über das Format und die Form der Verpackung kann von dem Betreiber beispielsweise über das Display der jeweiligen Verpackungsmaschine erfolgen, das mit einem Computer verbunden ist, der die Verpackungsmaschine steuert. In einer besonders bevorzugten Ausführungsform der vorliegenden Erfindung weisen jedoch die Werkzeuge, beispielsweise das Tiefziehwerkzeug, mit dem die Verpackungsmulden geformt werden, einen Datenträger, beispielsweise einen Transponder auf, in dem Daten über die Form der Verpackungsmulde und das jeweilige Format abgespeichert und auslesbar sind, die von einem Empfänger der Verpackungsmaschine gelesen werden, der mit einem Computer verbunden ist und mit dem die automatische Einstellung der Längsschneider erfolgt. Je nachdem, welche Verpackungsmuldenform und/oder welches Format auf der Verpackungsmaschine gefahren wird, bringt die Verpackungsmaschine automatisch bestimmte Messer und deren Gegenwalzen miteinander in Eingriff oder bewegt sie aus der Schneidebene heraus.The operator can provide information about the format and shape of the packaging, for example via the display of the respective packaging machine, which is connected to a computer that controls the packaging machine. In a particularly preferred embodiment of the present invention, however, the tools, for example the deep-drawing tool with which the packaging troughs are formed, have a data carrier, for example a transponder, in which data about the shape of the packaging trough and the respective format are stored and can be read out be read by a receiver of the packaging machine, who is connected to a computer and with which the slitter is automatically adjusted. Depending on which packaging tray shape and / or which format is driven on the packaging machine, the packaging machine automatically brings certain knives and their counter-rollers into engagement with one another or moves them out of the cutting plane.
Im Folgenden wird die Erfindung anhand der Figuren 1 bis 4 erläutert. Diese Erläuterungen sind lediglich beispielhaft und schränken den allgemeinen Erfindungsgedanken nicht ein. Die Erläuterungen gelten für den erfindungsgemäßen Längsschneider und die erfindungsgemäße Verpackungsmaschine gleichermaßen. Figur 1 zeigt die Formstation einer Verpackungsmaschine.The invention is explained below with reference to FIGS. 1 to 4. These explanations are only examples and do not limit the general inventive concept. The explanations apply equally to the slitter according to the invention and the packaging machine according to the invention. Figure 1 shows the forming station of a packaging machine.
Figur 2 zeigt eine Ausführungsform des erfindungsgemäßen Längsschneiders.Figure 2 shows an embodiment of the slitter according to the invention.
Figur 3 zeigt eine weitere Ausführungsform des erfindungsgemäßen Längsschneiders, bei der die Gegenwalzen gemeinsam vertikal verschoben werden.Figure 3 shows a further embodiment of the slitter according to the invention, in which the counter-rollers are moved vertically together.
Figur 4 zeigt eine andere Ausführungsform des erfindungsgemäßen Längsschneiders gemäß Figur 3FIG. 4 shows another embodiment of the slitter according to the invention according to FIG. 3
In Figur 1 ist ein Teil einer erfindungsgemäßen Verpackungsmaschine, die Tiefziehstation, dargestellt. Die Folie F1 wird von einer Rolle V1 abgerollt und zum Beispiel mit einem Kettenantrieb taktweise zur Tiefziehstation T transportiert, wie durch den Pfeil dargestellt. Dort wird die Folie fixiert und mit Heizelementen 18 erwärmt, wobei das Erwärmen der Folie auch vor der Tiefziehstation erfolgen kann. Die Tiefziehform 19, mit der die Verpackungsmulden tiefgezogen werden, befindet sich auf einer Hubvorrichtung 20. Sobald das Werkzeug 19 an der Hubvorrichtung fixiert ist, werden über eine Sende- und Empfangsanlage (nicht dargestellt) die Daten eines Sensorchips, der in dem Werkzeug 20 angeordnet ist, abgefragt. Diese Daten werden sodann in einem Computer verarbeitet. Dieser Computer steuert die automatische Einstellung beispielweise der Längsschneidevorrichtung, so dass diese an die Form der hergestellten Verpackungsmulde und an das Format angepasst sind. Die Verpackungsfolie wird taktweise abgerollt und die Verpackungsmülden werden in die Verpackungsfolie eingeformt. Das Werkzeug 19 ist so gestaltet, dass mehrere mindestens jedoch zwei Verpackungsmulden in der Papierebene hintereinander hergestellt werden. Die Verpackungsmulden werden aus der Tiefziehstation heraus transportiert und dann gegebenenfalls mit einem Verpackungsgut gefüllt und mit einer Deckelfolie versiegelt. Die so hergestellten Verpackungen werden anschließend durch die in den Figuren 2 bis 4 dargestellten Längsschneider in Laufrichtung der Folie auseinander geschnitten. Mit einem Querschneider (nicht dargestellt) werden die Verpackungsmulden quer zur Transportrichtung der Folie getrennt. Es ist jedoch auch denkbar, dass die erfindungsgemäßen Längsschneider lediglich in einem sogenannten Trayformer zum Einsatz kommen. Bei dieser Ausführungsform werden die hergestellten Verpackungsmulden 21 nach der Tiefziehstation nicht gefüllt, sondern mit erfindungsgemäßen Längsschneidern und einem Querschneider vereinzelt und können dann beispielsweise in einem sogenannten Traysealer befüllt und gesiegelt werden.FIG. 1 shows part of a packaging machine according to the invention, the deep-drawing station. The film F1 is unwound from a roll V1 and, for example, is cyclically transported to the deep-drawing station T with a chain drive, as shown by the arrow. The film is fixed there and heated with heating elements 18, and the film can also be heated in front of the deep-drawing station. The deep-drawing mold 19, with which the packaging troughs are deep-drawn, is located on a lifting device 20. As soon as the tool 19 is fixed to the lifting device, the data of a sensor chip, which is arranged in the tool 20, are transmitted via a transmitting and receiving system (not shown) is queried. This data is then processed in a computer. This computer controls the automatic setting of the longitudinal cutting device, for example, so that they are adapted to the shape of the packaging tray produced and to the format. The packaging film is rolled off in cycles and the packaging trays are molded into the packaging film. The tool 19 is designed such that a plurality of at least two packaging troughs are produced one behind the other in the paper plane. The packaging troughs are transported out of the deep-drawing station and then, if necessary, filled with a product to be packed and sealed with a cover film. The packaging produced in this way is then cut apart by the slitter shown in FIGS. 2 to 4 in the running direction of the film. With a cross cutter (not shown), the packaging troughs are separated across the transport direction of the film. However, it is also conceivable that the slitters according to the invention are only used in a so-called tray former. In this embodiment, the manufactured Packaging troughs 21 are not filled after the deep-drawing station, but are separated with slitters according to the invention and a cross cutter and can then be filled and sealed, for example, in a so-called traysealer.
Figur 2 zeigt einen erfindungsgemäßen Längsschneider, der ein Messer 2 und eine Gegenwalze 3 aufweist. Die Klinge des Messers 2 drückt gegen die Walze 3 und zerteilt dadurch die Folie (nicht dargestellt), die zwischen dem Messer und der Gegenwalze taktweise, wie durch den Pfeil „LR" dargestellt ist, transportiert wird. Das Messer 2 und die Gegenwalze 3 werden jeweils durch die Antriebsmittel 5 bzw. 6, in dem vorliegenden Fall Zahnräder, die jeweils an einen Motor (nicht dargestellt) angeschlossen sind, angetrieben. Dafür greifen die Zähne des Zahnrades 5 in die Zähne des Zahnrades 7, das mit dem Messer drehfest verbunden ist. Die Zähne des Zahnrades 6 greifen in die Zähne des Zahnrades 8, das mit der Gegenwalze 3 drehfest verbunden ist, ein. Mit den Pneumatikzylindern 4, 9 können die Gegenwalze bzw. das Messer vertikal verschoben werden, wobei das Zahnrad 8 auf dem Zahnrad 6 und das Zahnrad 7 auf dem Zahnrad 5 abrollt und dadurch das Messer 2 bzw. die Gegenwalze 5 von der Folienbahn 6 bzw. zu der Folienbahn hin bewegt werden.Figure 2 shows a slitter according to the invention, which has a knife 2 and a counter roller 3. The blade of the knife 2 presses against the roller 3 and thereby cuts the film (not shown) which is cyclically transported between the knife and the counter roller, as shown by the arrow “LR”. The knife 2 and the counter roller 3 become driven in each case by the drive means 5 or 6, in the present case gearwheels which are each connected to a motor (not shown), for which purpose the teeth of the gearwheel 5 engage in the teeth of the gearwheel 7 which is connected to the knife in a rotationally fixed manner The teeth of the gear wheel 6 engage in the teeth of the gear wheel 8, which is connected in a rotationally fixed manner to the counter roller 3. The counter roller or the knife can be moved vertically with the pneumatic cylinders 4, 9, the gear wheel 8 on the gear wheel 6 and the gear 7 rolls on the gear 5 and thereby the knife 2 or the counter-roller 5 are moved from the film web 6 or to the film web.
Figur 3 zeigt eine weitere Ausführungsform der erfindungsgemäßen Längsschneider. In dem vorliegenden Fall sind die Gegenwalzen 3 auf einer gemeinsamen Welle 11 angeordnet, die angetrieben sein kann, so dass alle Längsschneider gemeinsam angetrieben werden. Der Fachmann erkennt, dass die Gegenwalzen 3 auch drehbar der Achse 11 gelagert sein können und dann jeweils oder teilweise gemeinsam einen Antrieb aufweisen, der nicht dargestellt ist. Die Gegenwalzen 3 wirken mit Messern 2 zusammen, die jeweils angetrieben und die, wie durch den Doppelpfeil 17 dargestellt, vertikal verschiebbar angeordnet sind. Die Welle bzw. Achse 11 ist seitlich durch die Lagerungen 10 gelagert. In diesen Lagerungen ist eine Kulisse 12, in dem vorliegenden Fall ein Langloch angeordnet, die die Welle oder Achse 11 bei ihrer horizontalen Bewegung führt. Die horizontale Bewegung der Welle/Achse 11 wird durch die Zylinder 4 bewirkt. Der Fachmann erkennt, dass sich die Bewegung Welle/Achse 11 nicht zwischen dem oberen und unteren Endpunkt der Kulisse erstrecken muss, sondern dass insbesondere die Bewegung nach unten nur soweit wie durch die Tiefe der Verpackungsmulde vorgegeben, erfolgen muss. Figur 4 zeigt eine weitere Ausführungsform des erfindungsgemäßen Längsschneiders, der im Wesentlichen dem Längsschneider gemäß Figur 3 entspricht, wobei bei dem vorliegenden Fall die Bewegung der Achse Welle 11 nicht durch eine Kulisse geführt wird, sondern die Welle 11 mit einer Rolle 14 verbunden ist, die auf einer Rolle 13, die mit einer Welle 16 verbunden ist, abrollt. Die Bewegung der Rolle 13 ist durch den in ihr angeordneten Doppelpfeil dargestellt. Ein Riemen 15 zieht die Rolle 14 gegen die Rolle 13. Die vertikale Bewegung der Gegenwalze wird durch die Zylinder 4 angetrieben. Figure 3 shows a further embodiment of the slitter according to the invention. In the present case, the counter-rollers 3 are arranged on a common shaft 11, which can be driven, so that all longitudinal cutters are driven together. The person skilled in the art recognizes that the counter-rollers 3 can also be rotatably mounted on the axle 11 and then each, or in part together, have a drive which is not shown. The counter-rollers 3 cooperate with knives 2, each of which is driven and which, as represented by the double arrow 17, are arranged to be vertically displaceable. The shaft or axis 11 is laterally supported by the bearings 10. In these bearings there is a link 12, in the present case an elongated hole, which guides the shaft or axis 11 during its horizontal movement. The horizontal movement of the shaft / axis 11 is effected by the cylinder 4. The person skilled in the art recognizes that the shaft / axis 11 movement does not have to extend between the upper and lower end point of the link, but that in particular the movement downwards only has to take place to the extent specified by the depth of the packaging trough. FIG. 4 shows a further embodiment of the slitter according to the invention, which essentially corresponds to the slitter according to FIG. 3, wherein in the present case the movement of the shaft 11 is not guided by a link, but rather the shaft 11 is connected to a roller 14 which rolls on a roller 13 which is connected to a shaft 16. The movement of the roller 13 is represented by the double arrow arranged in it. A belt 15 pulls the roller 14 against the roller 13. The vertical movement of the counter roller is driven by the cylinders 4.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Längsschneider 2 Messer 3 Gegenwalze 4 Pneumatikzylinder 5 Antrieb des Messers 6 Antrieb der Gegenwalze 7,8 Zahnkranz 9 Pneumatikzylinder 10 Lagerung für Welle 11 11 Welle 12 Kulisse 13,14 ■ Rolle 15 Riemen 16 Welle 17 Doppelpfeil 18 Heizelement 19 Tiefziehform 20 Hubvorrichtung 21 Verpackungsmulden 1 slitter 2 knife 3 counter roller 4 pneumatic cylinder 5 drive of the knife 6 drive of the counter roller 7,8 sprocket 9 pneumatic cylinder 10 bearing for shaft 11 11 shaft 12 link 13,14 ■ roller 15 belt 16 shaft 17 double arrow 18 heating element 19 thermoforming mold 20 lifting device 21 packaging troughs

Claims

Patentansprüche: claims:
1. Längsschneider bestehend aus einem Messer (2) und einer Gegenwalze (3), dadurch gekennzeichnet, dass das Messer (2) und die Gegenwalze (3) angetrieben und vertikal verschiebbar sind.1. Slitter consisting of a knife (2) and a counter roller (3), characterized in that the knife (2) and the counter roller (3) are driven and vertically displaceable.
2. Längsschneider nach Anspruch 1 , dadurch gekennzeichnet, dass die vertikale Verschiebung des Messers und der Gegenwalze jeweils durch ein Antriebsmittel (4, 9) erfolgt.2. Slitter according to claim 1, characterized in that the vertical displacement of the knife and the counter roll is carried out by a drive means (4, 9).
3. Verpackungsmaschine zur Herstellung von Verpackungsmulden oder Verpackungen aus Verpackungsfolie, wobei die Verpackung nach dem Befüllen und Versiegeln mit einer Deckelfolie oder die Verpackungsmulden vor dem Befüllen mit einem Längs- (1) und einem Querschneider vereinzelbar sind, dadurch gekennzeichnet, dass sie mindestens einen Längsschneider gemäß einem der Ansprüche 1 - 2 aufweist.3. Packing machine for the production of packaging trays or packaging from packaging film, the packaging after filling and sealing with a cover film or the packaging trays before filling with a longitudinal (1) and a cross cutter can be separated, characterized in that they have at least one longitudinal cutter according to one of claims 1-2.
4. Verpackungsmaschine nach Anspruch 3, dadurch gekennzeichnet, dass sie mehrere Längsschneider aufweist, bei denen das Messer (2) und die Gegenwalze (3) jeweils antreibbar und vertikal verschiebbar sind.4. Packaging machine according to claim 3, characterized in that it has a plurality of longitudinal cutters in which the knife (2) and the counter-roller (3) are each drivable and vertically displaceable.
5. Verpackungsmaschine nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, dass das Messer (2) und die Gegenwalze (3) jeweils einzeln antreibbar und/oder jeweils einzeln vertikal verschiebbar sind.5. Packaging machine according to one of claims 3 or 4, characterized in that the knife (2) and the counter-roller (3) are each individually driven and / or individually vertically displaceable.
6. Verpackungsmaschine nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, dass das Messer (2) und die Gegenwalze (3) zumindest teilweise gemeinsam antreibbar und/oder zumindest teilweise gemeinsam vertikal verschiebbar sind.6. Packaging machine according to one of claims 3 or 4, characterized in that the knife (2) and the counter roller (3) are at least partially drivable together and / or at least partially vertically displaceable together.
7. Verpackungsmaschine nach Anspruch einem der Ansprüche 3 - 6, dadurch gekennzeichnet, dass der Antrieb und/oder die vertikale Verschiebung der Messer (2) und der Gegenwalze(3) von der Maschine automatisch anhand der gewählten Form der Verpackungsmulde und des Formates steuerbar ist.7. Packaging machine according to one of claims 3 - 6, characterized in that the drive and / or the vertical displacement of the knife (2) and the counter-roller (3) from the machine can be controlled automatically based on the selected shape of the packaging tray and the format.
8. Verpackungsmaschine nach Anspruch 7, dadurch gekennzeichnet, dass die Information über die Packungsform und/oder das Format in einem Datenträger, vorzugsweise einem Transponder, in dem Tiefziehwerkzeug, mit dem die Verpackungsmulden hergestellt werden, abgespeichert und auslesbar ist. 8. Packaging machine according to claim 7, characterized in that the information about the package shape and / or the format in a data carrier, preferably a transponder, is stored and readable in the deep-drawing tool with which the packaging troughs are produced.
PCT/EP2004/013520 2003-12-17 2004-11-29 Longitudinal cutter with a vertically displaceable blade and counter-roller WO2005058563A1 (en)

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US10/583,161 US20080066427A1 (en) 2003-12-17 2004-11-29 Longitudinal Cutter with a Vertically Displaceable Blade and Counter-Roller
EP04820406A EP1697098A1 (en) 2003-12-17 2004-11-29 Longitudinal cutter with a vertically displaceable blade and counter-roller

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