EP2704898B1 - Device for creasing cardboard material - Google Patents
Device for creasing cardboard material Download PDFInfo
- Publication number
- EP2704898B1 EP2704898B1 EP12722088.7A EP12722088A EP2704898B1 EP 2704898 B1 EP2704898 B1 EP 2704898B1 EP 12722088 A EP12722088 A EP 12722088A EP 2704898 B1 EP2704898 B1 EP 2704898B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- formers
- cardboard
- forming body
- forming
- corrugated board
- 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.)
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- 239000000463 material Substances 0.000 title description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000004952 Polyamide Substances 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 3
- 230000005489 elastic deformation Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 description 11
- 238000004080 punching Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000009172 bursting Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/08—Creasing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/25—Surface scoring
- B31B50/252—Surface scoring using presses or dies
Definitions
- the invention relates to a device for corrugated cardboard or cardboard.
- a tool 100 consisting of an upper tool part 101 and a lower tool part 102 is shown, with the aid of which in the exemplary embodiment 3-ply corrugated cardboard 1 is provided with a groove 5.
- the tool 100 usually also serves for punching blanks of the corrugated cardboard 1, and has for this purpose in its usually made of hard wood tool upper part 101 a receptacle 103 for receiving a perpendicular to the plane of the FIGS. 20 and 21 extending crease line 105.
- the score line 105 is provided on the corrugated cardboard 1 side facing with a rounding 106.
- the corrugated cardboard 1 consists of an outer layer 2, an inner layer 3, and arranged between the outer layer 2 and the inner layer 3, corrugated intermediate layer 4.
- the corrugated cardboard 1 may consist of more than three layers.
- the outer layer 2 of the corrugated cardboard 1, which usually serves as a packaging is designed as a printed outer layer 2, ie. H. in particular, a colored print image or the like.
- the upper tool part 101 and the lower tool part 102 are arranged movably relative to one another in the direction of the double arrow 107 by means of a drive, not shown.
- the corrugated cardboard 1 is flat with its outer layer 3 on the upper side of the lower tool part 102, so that when the tool upper part 101 is lowered, the creasing line 105 corrupts the inner layer 3 and the intermediate layer 4 in the region of the crease 5 and thereby forms the crease 5.
- the disadvantage here is that when bending the corrugated cardboard 1 in the region of the groove 5, as shown by the Fig.
- a device for corrugated cardboard or cardboard with the features of the preamble of claim 1 is known.
- the known device is characterized by a shaped body which has on the corrugated cardboard or the cardboard side facing at least two mutually parallel shaped encoder.
- the invention has the object, a device for corrugated cardboard or cardboard according to the preamble of claim 1 such that a further improved performance achieved. This is made possible by the fact that the horizontal distance between the two formers is reduced when forming the grooves.
- the molded body for this purpose is made of hard plastic, in particular polyamide, that the shaper are designed so that when forming the grooves their distance in the horizontal direction decreases, that on the opposite Side of the formers of the shaped body surface portions are arranged for fixing the corrugated cardboard or the carton, which are inclined relative to the horizontal by an angle, wherein either a support member or the molded body in a region between the formers or in the zone between the support member and the former a Form free space, so that in an elastic deformation of the former whose top partially enters the free space, or wherein the shaped body has a central part, which merges at its opposite sides into edge regions that the middle part has a rounded survey that in the region of the central part s between the formers of the shaped body has an approximately constant thickness, and that between the elevation and the upper tool part a free space is formed, in which the middle part can deform elastically during the formation of the grooves, or wherein the shaped body has planar lower
- Particularly preferred is a design of the formers, in which they are equipped on the corrugated board or the cardboard side facing with a rounding. As a result, damage to the inside of the corrugated cardboard or the carton is safely avoided.
- the shaped body is formed as a one-piece component and has fastening portions which engage in receptacles of the tool upper part and are held there in particular by clamping.
- the recordings are taken to mean, in particular, those recordings which, for example, can also be used to attach the mentioned score line.
- a relatively simple mounting of the molding without additional fasteners is made possible by the terminal closure.
- the shaped body is designed as a format part and arranged in a carrier element, and that the carrier element has fastening portions which engage in receptacles of the tool shell and held there in particular by clamping.
- the idea is thus always to use a carrier element which is the same for us, and to equip it with different shaped bodies for different creases.
- a not included in the invention means 10, 10a for corrugating corrugated cardboard 1 (or a carton, not shown) shown.
- the device 10 is preferably used in a punching device having a tool 100, comprising at least one tool upper part 101, in particular made of hard wood, and a lower tool part 102.
- the upper tool part 101 and the lower tool part 102 are arranged in the direction of the double arrow 107 by means of a drive not shown to each other movable.
- a receptacle in the form of a longitudinal slot 11 is formed, which has been produced in a known manner by a laser beam processing device. Between the tool upper part 101 and the lower tool part 102, the device 10 is arranged.
- the device 10 comprises a strip-shaped or elongated shaped body 12, which has an approximately rectangular central part 13 in cross-section. From the central part 13 extends on the upper side of the tool 101 facing side corresponding to the arrangement of the longitudinal slot 11, a strip-shaped web 14 which is integrally formed on the molded body 12, and connects the molded body 12 by clamping with the upper tool 101.
- the molded body 12 is particularly preferably formed as an injection molded part.
- a damping element 15, for. B. in the form of a coating or a separate, connected to the molded body 12 component, for. B. in the form of a rubber layer is arranged between the except in the region of the web 14 flat top of the molded body 12 and the upper tool part 101.
- a damping element 15, for. B. in the form of a coating or a separate, connected to the molded body 12 component, for. B. in the form of a rubber layer is arranged between the except in the region of the web 14 flat top of the molded body 12 and the upper tool part 101.
- a damping element 15, for. B. in the form of a coating or a separate, connected to the molded body 12 component, for. B. in the form of a rubber layer is arranged between the except in the region of the web 14 flat top of the molded body 12 and the upper tool part 101.
- the molded body 12 which is integrally formed as already mentioned, preferably consists of a hard plastic, such as polyamide (PA) or the like.
- two line-like form sensor 16, 17, which are preferably arranged symmetrically to the longitudinal axis 18 of the shaped body 12.
- the shapers 16, 17 may also be flat.
- a bulge 20 is arranged in the direction of the web 14, in which in the Fig. 1 and 2 illustrated embodiment has a radius r.
- On the opposite side of the bulge 20 of each former 16, 17 this goes over in an area arranged at an angle ⁇ relative to the horizontal, formed as an inclined surface 21 area.
- the shapers 16, 17 thus protrude on the the corrugated cardboard 1 facing side as a strip-shaped elevations 22 from the bottom of the molding 12 out.
- the upper tool part 101 and the lower tool part 102 in the in the Fig. 1 shown position against each other, so that the former 16, 17 of the molding 12 when immersed in the corrugated cardboard 1, the grooves 24, 25 form.
- How to use the Fig. 1 recognizes the bulge 20 between the formers 16, 17 while a receptacle for the arranged between the formers 16, 17 regions of the corrugated cardboard 1 from.
- the material of the corrugated cardboard 1 is positively frictionally against the bulge 20 and thereby receives a curved shape, which leads to the formation of an optimal predetermined bending point or Sollknickline.
- the corrugations 24, 25 are arranged at a relatively great distance from one another in accordance with the spacing of the former 16, 17 whose shape and spacing are adapted to the respective corrugated cardboard 1 (or carton) ,
- the corrugations 24, 25 are arranged at a relatively great distance from one another in accordance with the spacing of the former 16, 17 whose shape and spacing are adapted to the respective corrugated cardboard 1 (or carton) ,
- the Fig. 7 possible, when folding or folding over the corrugated cardboard 1 in the region of the grooves 24, 25, the two sections 27, 28 of the corrugated board 1 over the entire surface against each other, due to the two relatively widely spaced grooves 24, 25 and the above-described relationships in the field the outer layer 2 of the corrugated board 1, the stresses in the corrugated cardboard 1 are so low that the outer layer 2, even with a printed outer layer 2, does not tend to crack.
- the in the Fig. 2 illustrated device 10a differs from the device 10 according to the Fig. 1 by a shaped body 12a, which has at least one receptacle 29 for fastening the shaped body 12a to the tool upper part 101 on the upper side facing the tool upper part 101.
- the receptacle 29 is formed as a longitudinal slot 30, so that the molded body 12a can be attached to a tool already located in the upper tool 101, for example in the form of a crease line 31, where it is held by clamping.
- a first embodiment of the invention is shown with a device 10b.
- the device 10b comprises a perpendicular to the plane of the 3 and 4 arranged, elongated support member 35 which by means of pin-shaped extensions 36 in as through holes (with, for example, an inner diameter between 6mm and 8mm) formed receptacles 104 of the upper tool part 101 can be used.
- the cross sections of the extensions 36 which are preferably arranged at equal distances from one another in the longitudinal direction of the carrier element 35, can be reduced in the longitudinal direction in order to compensate for tolerances between the receptacles 104 and the extensions 36.
- this has an elongated receptacle 37 for the form-fitting or clamp-locking receiving a shaped body 12b.
- the molded body 12b is formed with respect to the functionality of its former 16, 17 and the bulge 20 in analogy to the devices 10a and 10b.
- the shaped body 12b has a planar upper side 38, so that a free space 40 is formed between a region of the receptacle 37 provided with a recess 39 and the upper side 38 of the shaped body 12b. Due to the free space 40, during the formation of the grooves 24, 25, the molded body 12b can deform elastically in such a way that the in the Fig. 3 shown planar top 38 of the molded body 12 b deformed and partially enters the space 40, wherein the distance between the formers 16, 17 is reduced.
- the molded body 12b which typically has a certain material wear during the operation of the device 10b, can easily be exchanged on the carrier element 35, wherein the carrier element 35 can remain on the tool top 101.
- FIG. 6 is a further embodiment of the invention with a molded body 12c shown as part of a device 10c.
- the integrally formed molded body 12c has strip-shaped edge regions 42, 43 which protrude into corresponding receptacles 44, 45 (holes) of the upper tool part 101 and thus connect the molded body 12c to the upper tool part 101.
- the receptacles 44, 45 are arranged, for example, on both sides of the receptacles 104 (longitudinal slot) formed in the tool part 101 for receiving a tool (not shown).
- the molded body 12c has a central part 46, which merges at its opposite sides into the edge regions 42, 43.
- the middle part 46 On the side facing the tool upper part 101, the middle part 46 has a rounded elevation 47, which approximately accommodates the course of the bulge 20, so that in the region of the middle part 46 between the shapers 16, 17 an approximately constant thickness d of the shaped body 12c is available. Between the survey 47 and the upper tool 101 a space 48 is formed. When forming the grooves 24, 25, the middle part 46 can deform elastically in the direction of the free space 48, wherein the two former 16, 17 in analogy to the embodiment according to the Fig. 3 can move towards each other, ie that reduces their distance to each other during the creasing process.
- FIGS. 8 and 9 is a device 10d not included in the invention, the molded body 12d, which is shown without the extensions 36 for the sake of simplicity, from the molded body 12 according to the Fig. 1 characterized essentially by a bulge 50 with a reduced radius relative to the bulge 20. Also, the horizontal distance of the former 16d, 17d and their height may be different from the formers 16, 17 of the molded body 12.
- the lower surfaces 51e, 52e and 52f, 52f are each inclined at an angle ⁇ of a few degrees, for example between 2 ° and 10 ° to the horizontal, but they may also be flat, that is, at an angle ⁇ of zero degrees be.
- the behavior of the formers 16e, 17e and 16f, 17f results in the formation of the grooves 24, 25, in which they move slightly towards one another in the horizontal direction reduce their distance from each other, which in particular stresses in the corrugated board 1 are reduced.
- the exact geometrical design of the shaped bodies 12e and 12f is, in analogy to all previously described shaped bodies 12, 12a to 12d, dependent, in particular, on the thickness of the corrugated cardboard 1 and, if appropriate, its number of layers.
- an additional former 53g, 53h provided in the illustrated embodiment, in particular with reference to Fig. 14 is visible, jagged runs.
- the additional shapers 53g, 53h wave-shaped or rectilinear form.
- the height of the former 53g, 53h is less than that of the former 16g, 17g and 16h, 17h, so that when forming the grooves 24, 25 first the former 16g, 17g and 16h, 17h in contact with the corrugated board 1 arrive.
- the additional shapers 53 g, 53 h in particular, the material of the corrugated cardboard. 1 between the formers 16g, 17g and 16h, 17h specifically influenced and homogenized, which improves the quality of the grooves 24, 25 and reduces stresses in the material of the corrugated cardboard 1.
- Fig. 15 is a device 10i not included in the invention with a molded body 12i shown, which consists of two interconnected parts 55 and 56. While one part 55 carries the fastening pins 14, the shaping elements 16i, 17i are arranged or formed on the other part 56. In this case, the shapers 16i, 17i can basically be designed in accordance with the embodiments described so far. It is essential that the part 55 consists of a material that is softer than the part 56. The thickness of the two parts 55, 56 may, depending on the specific application and hardness of the parts 55, 56 be about the same size or different.
- the particular advantage of the molded body 12i is that all tolerances can be equalized by the softer part 55. This has the effect that, when the upper part of the tool 101 or the molded part 12i is lowered, an optimal adhesion to the corrugated cardboard 1 is always produced, which produces grooves 24, 25 of optimum quality.
- the molded body 12i may be formed either as an injection-molded part, in which one part 55 is molded onto the other part 56, or as an extruded or coextruded part.
- a device 10j is shown as it can be used in a punching tool 110. It can be seen in particular two punching blades 111, 112 for the corrugated cardboard 1, between which the device 10j is arranged with the molded body 12j.
- the molded body 12j differs from the molded body 12i substantially by a longitudinal slot 57 and an oval-shaped longitudinal channel 58th
- inventive devices 10b, 10c, 10e and 10f described so far can be modified or modified in many ways, without deviating from the inventive idea. So it is also conceivable, more than two or three former 16, 17, z. B. four, five or even more number of formers to provide (multi-irrigator), which are arranged for example on a curved or rounded surface. In this case, the course of the curved surface or the formation of the grooves depends in particular on the thickness of the material provided with the grooves 24, 25.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Description
Die Erfindung betrifft eine Einrichtung zum Rillen von Wellpappe oder Karton. Hierzu wird als Stand der Technik zunächst auf die beigefügten
Die Wellpappe 1 besteht aus einer Außenlage 2, einer Innenlage 3, und einer zwischen der Außenlage 2 und der Innenlage 3 angeordneten, gewellten Zwischenlage 4. Die Wellpappe 1 kann jedoch auch aus mehr als drei Lagen bestehen. Insbesondere kann es vorgesehen sein, dass die Außenlage 2 der üblicherweise als Verpackung dienenden Wellpappe 1 als bedruckte Außenlage 2 ausgebildet ist, d. h. insbesondere ein farbiges Druckbild oder ähnliches aufweist.The
Das Werkzeugoberteil 101 und das Werkzeugunterteil 102 sind in Richtung des Doppelpfeils 107 mittels eines nicht dargestellten Antriebs zueinander bewegbar angeordnet. Bei der in der
Um das Einreißen der Außenlage 2 der Wellpappe 1 zu reduzieren oder ggf. sogar zu vermeiden ist es darüber hinaus bekannt, gemäß der
Aus der
Ausgehend von dem dargestellten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Einrichtung zum Rillen von Wellpappe oder Karton nach dem Oberbegriff des Anspruchs 1 derart weiterzubilden, dass ein nochmals verbessertes Funktionsverhalten erzielt. Dies wird dadurch ermöglicht, dass sich der horizontale Abstand zwischen den beiden Formgebern beim Ausbilden der Rillungen zueinander verringert.Based on the illustrated prior art, the invention has the object, a device for corrugated cardboard or cardboard according to the preamble of
Konkret schlägt es die Lehre des Anspruchs 1 vor, dass der Formkörper hierzu aus hartem Kunststoff, insbesondere aus Polyamid, ausgebildet ist, dass die Formgeber dazu ausgebildet sind, dass beim Ausbilden der Rillungen sich deren Abstand in horizontaler Richtung verringert, dass auf den einander abgewandten Seiten der Formgeber der Formkörper Flächenabschnitte zur Fixierung der Wellpappe oder des Kartons angeordnet sind, die gegenüber der Horizontalen um einen Winkel geneigt sind, wobei entweder ein Trägerelement oder der Formkörper im einem Bereich zwischen den Formgebern oder in der Zone zwischen dem Trägerelement und dem Formgeber einen Freiraum ausbilden, sodass bei einer elastischen Verformung des Formgebers dessen Oberseite teilweise in den Freiraum gelangt, oder wobei der Formkörper ein Mittelteil aufweist, das an seinen gegenüberliegenden Seiten in Randbereiche übergeht, dass das Mittelteil eine gerundet ausgebildete Erhebung aufweist, dass im Bereich des Mittelteils zwischen den Formgebern der Formkörper eine in etwa konstante Dicke aufweist, und dass zwischen der Erhebung und dem Werkzeugoberteil ein Freiraum ausgebildet ist, in den sich das Mittelteil beim Ausbilden der Rillungen elastisch verformen kann, oder wobei der Formkörper ebene Unterflächen aufweist, an die sich die Flächenabschnitte anschließen, und dass der Formkörper auf der dem Werkzeugoberteil abgewandten Seite eine Ausbuchtung zwischen den beiden Formgebern zur Aufnahme der Wellpappe oder des Kartons aufweist.Specifically, it proposes the teaching of
Vorteilhafte Weiterbildungen der erfindungsgemäßen Einrichtung zum Rillen von Wellpappe oder Karton sind in den Unteransprüchen angegeben. In den Rahmen der Erfindung fallen sämtliche Kombinationen aus zumindest zwei von in den Ansprüchen, der Beschreibung und/oder den Figuren offenbarten Merkmalen.Advantageous developments of the device according to the invention for corrugating corrugated board or cardboard are given in the dependent claims. In the Within the scope of the invention, all combinations of at least two of the features disclosed in the claims, the description and / or the figures fall.
Besonders bevorzugt ist eine Ausbildung der Formgeber, bei der diese auf der der Wellpappe oder dem Karton zugewandten Seite mit einer Rundung ausgestattet sind. Dadurch wird eine Beschädigung der Innenseite der Wellpappe bzw. des Kartons sicher vermieden.Particularly preferred is a design of the formers, in which they are equipped on the corrugated board or the cardboard side facing with a rounding. As a result, damage to the inside of the corrugated cardboard or the carton is safely avoided.
Alternativ hierzu kann es in einer konstruktiven Ausgestaltung des Formkörpers vorgesehen sein, dass der Formkörper als einstückiges Bauelement ausgebildet ist und Befestigungsabschnitte aufweist, die in Aufnahmen des Werkzeugoberteils eingreifen und dort insbesondere durch Klemmschluss gehalten sind. Unter den Aufnahmen werden hierbei insbesondere diejenigen Aufnahmen verstanden, die beispielsweise auch zur Befestigung der angesprochenen Rillline dienen können. Weiterhin wird durch den Klemmschluss eine relativ einfache Montage des Formkörpers ohne zusätzliche Befestigungselemente ermöglicht.Alternatively, it may be provided in a constructive embodiment of the shaped body, that the shaped body is formed as a one-piece component and has fastening portions which engage in receptacles of the tool upper part and are held there in particular by clamping. In this case, the recordings are taken to mean, in particular, those recordings which, for example, can also be used to attach the mentioned score line. Furthermore, a relatively simple mounting of the molding without additional fasteners is made possible by the terminal closure.
Oftmals werden von einem Anwender verschiedene Rillungen gewünscht. Um hierzu nicht für jede Rillung ein vollständig eigenständiges Werkzeug benützen zu müssen, ist es in einer weiteren Ausgestaltung der Erfindung vorgesehen, dass der Formkörper als Formatteil ausgebildet und in einem Trägerelement angeordnet ist, und dass das Trägerelement Befestigungsabschnitte aufweist, die in Aufnahmen des Werkzeugoberteils eingreifen und dort insbesondere durch Klemmschluss gehalten sind. Die Idee besteht somit darin, stets ein uns dasselbe Trägerelement zu verwenden, und dieses mit unterschiedlichen Formkörpern für unterschiedliche Rillungen auszustatten.Often, different creases are desired by a user. In order not to have to use a completely independent tool for this purpose, it is provided in a further embodiment of the invention that the shaped body is designed as a format part and arranged in a carrier element, and that the carrier element has fastening portions which engage in receptacles of the tool shell and held there in particular by clamping. The idea is thus always to use a carrier element which is the same for us, and to equip it with different shaped bodies for different creases.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung.Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing.
Diese zeigt in:
-
Fig.1 einen Querschnitt durch eine nicht von der Erfindung umfasste Einrichtung zum Rillen von Wellpappe oder Karton, -
Fig. 2 eine gegenüber der Einrichtung gemäßFig. 1 abgewandelte, ebenfalls nicht von der Erfindung umfasste Ausführungsform, bei der eine am Werkzeugoberteil angeordnete Rilllinie zur Aufnahme bzw. zur Befestigung eines erfindungsgemäßen Formkörpers dient, ebenfalls im Querschnitt, -
Fig. 3 eine erste Ausführungsform der Erfindung, bei der ein Formkörper als Formatsteil ausgebildet und in einem Trägerelement angeordnet ist, im Querschnitt, -
Fig. 4 das Trägerelement gemäßFig. 3 in Einzeldarstellung im Querschnitt, -
Fig. 5 das Trägerelement gemäßFig. 4 in Seitenansicht, -
Fig. 6 einen Querschnitt durch eine weitere, abgewandelte Ausführungsform der Erfindung, -
Fig. 7 einen Schnitt durch eine zweifach umgebogene Wellpappe, die mittels eines erfindungsgemäßen Formkörpers gerillt wurde, -
Fig. 8 und Fig. 9 einen abgewandelten, nicht von der Erfindung umfassten Formkörper im Querschnitt sowie in Unteransicht, -
Fig. 10 und Fig. 11 Querschnitte durch gegenüber derFig. 8 abgewandelte, erfindungsgemäße Formkörper, -
Fig. 12 und Fig. 13 Querschnitte durch nicht von der Erfindung umfasste Formkörper, die jeweils drei Formgeber zur Ausbildung der Rillungen aufweisen, -
Fig. 14 eine Unteransicht auf einen Formkörper gemäß derFig. 12 oder derFig. 13 , -
Fig. 15 einen Querschnitt durch einen nicht von der Erfindung umfassten Formkörper, der aus zwei unterschiedlich harten Teilen hergestellt ist, -
Fig. 16 eine gegenüber derFig. 15 im Querschnitt modifizierten, ebenfalls von der Erfindung nicht umfasste Formkörper beim Einsatz in einem Stanzwerkzeug, -
Fig. 17 bis Fig. 19 jeweils Formkörper mit unterschiedlichem Querschnitt zur Verdeutlichung unterschiedlicher Befestigungsmöglichkeiten an einem Werkzeug in perspektivischer Ansicht, -
Fig. 20 und 21 jeweils Längsschnitte durch Einrichtungen zum Rillen von Wellpappe gemäß dem Stand der Technik und -
Fig. 22 einen Schnitt durch eine mittels einer Einrichtung gemäß dem Stand der Technik gerillte Wellpappe beim Umbiegen.
-
Fig.1 a cross section through a device not covered by the invention for corrugated cardboard or cardboard, -
Fig. 2 one opposite the device according toFig. 1 modified embodiment, likewise not encompassed by the invention, in which a creasing line arranged on the tool upper part serves for receiving or for fixing a shaped body according to the invention, likewise in cross-section, -
Fig. 3 a first embodiment of the invention, in which a shaped body is formed as a format part and arranged in a carrier element, in cross-section, -
Fig. 4 the carrier element according toFig. 3 in an individual representation in cross-section, -
Fig. 5 the carrier element according toFig. 4 in side view, -
Fig. 6 a cross section through a further modified embodiment of the invention, -
Fig. 7 a section through a double bent corrugated cardboard, which has been grooved by means of a shaped body according to the invention, -
FIGS. 8 and 9 a modified, not encompassed by the invention shaped body in cross section and in bottom view, -
10 and FIG. 11 Cross sections through the oppositeFig. 8 modified, shaped bodies according to the invention, -
FIGS. 12 and 13 Cross sections through moldings not encompassed by the invention, each of which has three shapers for forming the grooves, -
Fig. 14 a bottom view of a shaped body according to theFig. 12 or theFig. 13 . -
Fig. 15 a cross section through a non-embraced by the invention shaped body, which is made of two different hard parts, -
Fig. 16 one opposite theFig. 15 modified in cross-section, also not encompassed by the invention moldings when used in a punching tool, -
Fig. 17 to Fig. 19 each shaped body with different cross section to illustrate different mounting options on a tool in perspective view, -
FIGS. 20 and 21 each longitudinal sections through means for corrugated cardboard according to the prior art and -
Fig. 22 a section through a grooved by means of a device according to the prior art corrugated cardboard during bending.
Gleiche Bauteile bzw. Bauteile mit gleicher Funktion sind in den Figuren mit den gleichen Bezugsziffern versehen.The same components or components with the same function are provided in the figures with the same reference numerals.
In den
Die Einrichtung 10 umfasst einen streifenförmigen bzw. langgestreckt ausgebildeten Formkörper 12, der im Querschnitt ein in etwa rechteckförmiges Mittelteil 13 aufweist. Von dem Mittelteil 13 erstreckt sich auf dem Werkzeugoberteil 101 zugewandten Seite entsprechend der Anordnung des Längsschlitzes 11 ein streifenförmiger Steg 14, der einstückig an dem Formkörper 12 angeformt ist, und der den Formkörper 12 durch Klemmschluss mit dem Werkzeugoberteil 101 verbindet. Der Formkörper 12 ist besonders bevorzugt als Spritzgußteil ausgebildet.The
Optional kann es vorgesehen sein, dass zwischen der mit Ausnahme im Bereich des Stegs 14 ebenen Oberseite des Formkörpers 12 und dem Werkzeugoberteil 101 ein Dämpfungselement 15, z. B. in Form einer Beschichtung oder eines separaten, mit dem Formkörper 12 verbundenen Bauteils, z. B. in Form einer Gummischicht, angeordnet ist. Der Formkörper 12, der wie bereits erwähnt einstückig ausgebildet ist, besteht bevorzugt aus einem harten Kunststoff, wie Polyamid (PA) oder ähnlichem.Optionally, it may be provided that between the except in the region of the
Auf der dem Steg 14 gegenüberliegenden Unterseite des Mittelteils 13 erstrecken sich senkrecht zur Zeichenebene der
Zum Ausbilden der Rillungen 24, 25 in der Wellpappe 1 mittels des Formkörpers 12 werden das Werkzeugoberteil 101 und das Werkzeugunterteil 102 in die in der
Bei einer mittels der Einrichtung 10, 10a bearbeiteten Wellpappe 1 sind die Rillungen 24, 25 entsprechend des Abstandes der Formgeber 16, 17, deren Form und Abstand der jeweiligen Wellpappe 1 (bzw. des Kartons) angepasst sind, in einem relativ großen Abstand zueinander angeordnet. Dadurch ist es entsprechend der
Die in der
In den
Auf der den Fortsätzen 36 gegenüberliegenden Seite des Trägerelements 35 weist dieses eine langgestreckte Aufnahme 37 zur form- bzw. klemmschlüssigen Aufnahme eines Formkörpers 12b auf. Der Formkörper 12b ist hinsichtlich der Funktionalität seiner Formgeber 16, 17 sowie der Ausbuchtung 20 in Analogie zu den Einrichtungen 10a und 10b ausgebildet. Der Formkörper 12b weist im Ausführungsbeispiel eine ebene Oberseite 38 auf, so dass zwischen einem mit einer Einbuchtung 39 versehenen Bereich der Aufnahme 37 und der Oberseite 38 des Formkörpers 12b ein Freiraum 40 ausgebildet ist. Durch den Freiraum 40 kann sich beim Ausbilden der Rillungen 24, 25 der Formkörper 12b derart elastisch verformen, dass die in der
Durch die Ausbildung der Einrichtung 10b kann der Formkörper 12b, der üblicherweise während des Betriebs der Einrichtung 10b einen gewissen Materialverschleiß aufweist, einfach an dem Trägerelement 35 ausgetauscht werden, wobei das Trägerelement 35 am Werkzeugoberteil 101 verbleiben kann.As a result of the design of the device 10b, the molded body 12b, which typically has a certain material wear during the operation of the device 10b, can easily be exchanged on the
In der
In der
Die Formkörper 12e und 12f der Einrichtungen 10e und 10f gemäß den
Die Formkörper 12g und 12h der nicht von der Erfindung umfassten Einrichtungen 10g und 10h gemäß den
In der
Der Formkörper 12i kann entweder als Spritzgußteil ausgebildet sein, bei dem das eine Teil 55 an das andere Teil 56 angespritzt wird, oder aber als extrudiertes bzw. koextrudiertes Teil.The molded body 12i may be formed either as an injection-molded part, in which one part 55 is molded onto the
In der
In den
Die soweit beschriebenen erfindungsgemäßen Einrichtungen 10b, 10c, 10e und 10f können in vielfältiger Art und Weise abgewandelt bzw. modifiziert werden, ohne vom Erfindungsgedanken abzuweichen. So ist es insbesondere auch denkbar, mehr als zwei bzw. drei Formgeber 16, 17, z. B. vier, fünf oder eine noch größere Anzahl von Formgebern vorzusehen (Multiriller), die beispielsweise auf einer gekrümmten bzw. gerundeten Oberfläche angeordnet sind. Hierbei richtet sich der Verlauf der gekrümmten Oberfläche bzw. die Ausbildung der Rillungen insbesondere nach der Dicke des mit den Rillungen 24, 25 versehenen Materials.The
- 11
- Wellpappecorrugated cardboard
- 22
- Außenlagebacksheet
- 33
- Innenlageinner layer
- 44
- Zwischenlageliner
- 55
- Rillungcreasing
- 77
- Wellenbereichwaveband
- 88th
- Wellenbereichwaveband
- 99
- Kanteedge
- 10,10a -10m10,10a -10m
- EinrichtungFacility
- 1111
- Lochhole
- 12,12a - 12m12,12a - 12m
- Formkörpermoldings
- 1313
- Mittelteilmidsection
- 1414
- Stegweb
- 1515
- Dämpfungselementdamping element
- 16, 16d, 16g-16i16, 16d, 16g-16i
- Formgebershaper
- 17, 17d, 17g-17i17, 17d, 17g-17i
- Formgeherform goers
- 1818
- Längsachselongitudinal axis
- 1919
- Rundungcurve
- 20, 20e, 20f20, 20e, 20f
- Ausbuchtungbulge
- 2121
- Flächearea
- 2222
- Erhebungsurvey
- 2424
- Rillungcreasing
- 2525
- Rillungcreasing
- 2727
- Teilbereichsubregion
- 2828
- Teilbereichsubregion
- 2929
- Aufnahmeadmission
- 3030
- Längsschlitzlongitudinal slot
- 3131
- Rillliniegrooved line
- 3535
- Trägerelementsupport element
- 3636
- Fortsatzextension
- 3737
- Aufnahmeadmission
- 3838
- Oberseitetop
- 3939
- Einbuchtungindentation
- 4040
- Freiraumfree space
- 4242
- Randbereichborder area
- 4343
- Randbereichborder area
- 4444
- Aufnahmeadmission
- 4545
- Aufnahmeadmission
- 4646
- Mittelteilmidsection
- 4747
- Erhebungsurvey
- 4848
- Freiraumfree space
- 5050
- Ausbuchungderecognition
- 51, 51f, 51e51, 51f, 51e
- Unterflächeundersurface
- 52, 52f, 52e52, 52f, 52e
- Unterflächeundersurface
- 53g, 53h53g, 53h
- Formgebershaper
- 5555
- Teilpart
- 5656
- Teilpart
- 5757
- Längsschlitzlongitudinal slot
- 5858
- Längskanallongitudinal channel
- 5959
- Längssteglongitudinal web
- 100100
- WerkzeugTool
- 101101
- WerkzeugoberteilUpper die
- 102102
- WerkzeugunterteilTool part
- 104104
- Aufnahmeadmission
- 105105
- Rillliniegrooved line
- 106106
- Rundungcurve
- 107107
- Doppelpfeildouble arrow
- 108108
- Pfeilarrow
- 109109
- Rillnutscoring groove
- 110110
- StanzwekzeugStanzwekzeug
- 111111
- Stanzmesserpunching knife
- 112112
- Stanzmesserpunching knife
- RR
- Radiusradius
- α, βα, β
- Winkelangle
- dd
- Dickethickness
Claims (4)
- A device (10b; 10c; 10e; 10f) for grooving corrugated board (1) or cardboard, comprising a strip-shaped grooving tool which can be fixed to an upper tool part (101) and which can be moved against the corrugated board (1) disposed in the area of a lower tool part (102) or against the cardboard for forming grooves (24, 25), the grooving tool comprising a forming body (12b; 12c; 12e; 12f) which has at least two formers (16; 16e; 16f; 17; 17e; 17f) disposed parallel to one another at the side facing the corrugated board (1) or the cardboard for forming the grooves (24, 25),
characterized in that
the forming body (12b; 12c; 12e; 12f) is made of hard plastic, in particular polyamide (PA), that the formers (16; 16e; 16f; 17; 17e; 17f) are configured to reduce the distance between the groves (24, 25) in the horizontal direction during their formation, that the formers (16; 16e; 16f; 17; 17e; 17f) of the forming bodies (12b; 12c; 12e; 12f) are assigned surface sections (21; 21e; 21f) at the sides facing away from one another for fixing the corrugated board (1) or the cardboard being inclined at an angle (α) relative to the horizontal,
either a support element (35) or the forming body (12b) forming a free space (40) in an area between the formers (16, 17) or in the area between the support element (35) and the former (12b), the upper side (38) of the former (12b) thus partially passing into the free space (40) in the case of an elastic deformation,
or the forming body (12c) having a middle part (46) which passes into edge areas (42, 43) at its opposite sides, that the middle part (46) has a rounded protrusion (47), that the forming body (12c) has an approximately constant thickness (d) in the area of the middle part (46) between the formers (16, 17), and that a free space (48) into which the middle part (46) can deform elastically when forming the grooves (24, 25) is realized between the protrusion (47) and the upper tool part (101),
or the forming body (12e; 12f) having plane lower surfaces (51e; 51f, 52e; 52f) which are followed by the surface sections (21e; 21f), and that the forming body (12e; 12f) has a bulge (20e; 20f) between the two formers (16e; 16f, 17e; 17f) at the side facing away from the upper tool part (101) for accommodating the corrugated board (1) or the cardboard. - The device according to claim 1,
characterized in that
the formers (16, 17) are provided with a rounding (19) at the side facing the corrugated board (1) or the cardboard. - The device according to claim 1 or 2,
characterized in that
the forming body (12c) is realized as an one-piece component and
has fixation sections (42, 43) which engage in receptions (44, 45) of the upper tool part (101) and are held, in particular, by clamping. - The device according to claim 1 or 2,
characterized in that
the forming body is realized as a format part and disposed inside the support element (35), and that the support element (35) has pin-shaped extensions (36) which engage in receptions (104) of the upper tool part (101) and are held, in particular, by clamping.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202011050052 | 2011-05-06 | ||
DE202011051195 | 2011-09-02 | ||
DE202011051257U DE202011051257U1 (en) | 2011-05-06 | 2011-09-09 | Device for corrugated board or cardboard |
PCT/EP2012/057468 WO2012152576A1 (en) | 2011-05-06 | 2012-04-24 | Apparatus for scoring corrugated board or cardboard |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2704898A1 EP2704898A1 (en) | 2014-03-12 |
EP2704898B1 true EP2704898B1 (en) | 2019-11-13 |
Family
ID=46845355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12722088.7A Active EP2704898B1 (en) | 2011-05-06 | 2012-04-24 | Device for creasing cardboard material |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2704898B1 (en) |
DE (1) | DE202011051257U1 (en) |
WO (1) | WO2012152576A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4400298A1 (en) * | 2022-12-21 | 2024-07-17 | SEI S.p.A. | Method and machine for forming a creasing on a paper item and paper item provided with a creasing |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8444539B2 (en) | 2004-08-17 | 2013-05-21 | Jonco Die Company, Inc. | Folding score and method and apparatus for forming the same |
HUE047783T2 (en) * | 2013-12-20 | 2020-05-28 | Mayr Melnhof Karton Ag | Method for the preparation of a cutting and/or punching and/or creasing tool |
DE202016102849U1 (en) * | 2016-05-30 | 2016-06-22 | Essmann + Schaefer Gmbh + Co. Kg | "Embossing and cutting tool" |
US11148385B2 (en) * | 2016-11-29 | 2021-10-19 | Triangle Dies and Supplies, Inc. | Interchangeable die-cutting creasing system |
CN111070790B (en) * | 2019-12-27 | 2021-07-13 | 汕头市雄业实业有限公司 | Non-woven fabric packaging bag manufacturing, forming and edge folding device and manufacturing, forming and edge folding process |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1302305A (en) * | 1970-12-09 | 1973-01-10 | ||
US4289492A (en) * | 1980-01-09 | 1981-09-15 | Container Graphics Corporation | Creasing rule |
US5133460A (en) * | 1990-03-05 | 1992-07-28 | Shuert Lyle H | Bulk container |
US5221249A (en) * | 1992-04-03 | 1993-06-22 | Container Graphics Corporation | Creasing rule for steel rule cutting die |
US6071225A (en) * | 1998-06-12 | 2000-06-06 | Dynamic Dies, Inc. | Scoring rule |
DE10062294B4 (en) * | 2000-12-14 | 2004-04-15 | Thorsten Seufert | Process for producing foldable packaging containers and container parts from thermoplastic films and packaging blanks produced thereby |
-
2011
- 2011-09-09 DE DE202011051257U patent/DE202011051257U1/en not_active Expired - Lifetime
-
2012
- 2012-04-24 EP EP12722088.7A patent/EP2704898B1/en active Active
- 2012-04-24 WO PCT/EP2012/057468 patent/WO2012152576A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
None * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4400298A1 (en) * | 2022-12-21 | 2024-07-17 | SEI S.p.A. | Method and machine for forming a creasing on a paper item and paper item provided with a creasing |
Also Published As
Publication number | Publication date |
---|---|
EP2704898A1 (en) | 2014-03-12 |
WO2012152576A1 (en) | 2012-11-15 |
DE202011051257U1 (en) | 2012-08-09 |
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