EP3964465A1 - Folding device for a flat blank - Google Patents
Folding device for a flat blank Download PDFInfo
- Publication number
- EP3964465A1 EP3964465A1 EP21194270.1A EP21194270A EP3964465A1 EP 3964465 A1 EP3964465 A1 EP 3964465A1 EP 21194270 A EP21194270 A EP 21194270A EP 3964465 A1 EP3964465 A1 EP 3964465A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- folding
- bearing blocks
- bearing
- linkage
- folding device
- 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.)
- Withdrawn
Links
- 210000002105 tongue Anatomy 0.000 description 5
- 241000252254 Catostomidae Species 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/18—Oscillating or reciprocating blade folders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
-
- 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
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
- B31D5/0004—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making inserts, e.g. partitions, for boxes
- B31D5/0008—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making inserts, e.g. partitions, for boxes the inserts having recesses for holding ampoules
-
- 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
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
- B31D5/04—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles including folding or pleating, e.g. Chinese lanterns
-
- 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
- B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
- B31F1/0006—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
- B31F1/0009—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
-
- 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
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
- B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
- B31F1/247—Making webs in which the channel of each corrugation is transverse to the web feed by reciprocating members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/20—Zig-zag folders
-
- 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
- B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
- B31F1/0006—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
- B31F1/0009—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
- B31F1/0012—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs combined with making folding lines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/30—Suction means
- B65H2406/34—Suction grippers
- B65H2406/342—Suction grippers being reciprocated in a rectilinear path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/11—Dimensional aspect of article or web
- B65H2701/112—Section geometry
- B65H2701/1123—Folded article or web
- B65H2701/11231—Fan-folded material or zig-zag or leporello
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/176—Cardboard
Definitions
- the invention relates to a folding device for a flat blank, with a plurality of bearing blocks arranged in a row in a first direction at a distance from one another, the mutual spacing of which can be changed in the first direction by means of a drive device and which each have a bearing surface for the blank, a holding device, by means of which the blank is held on the bearing surfaces, and a plurality of folding blades which are spaced apart from one another in the first direction, at least one of the folding blades being arranged between immediately adjacent storage blocks and the folding blades changing their mutual spacing in the first direction and are adjustable with an additional movement component perpendicular to the cut.
- a number of objects for example ampoules
- a folded insert into the box, which, due to its folding, has storage compartments for the ampoules.
- the insert is usually erected and manufactured by folding a flat blank, for example made of cardboard, cardboard or plastic, and then inserted into the box.
- EP 0 491 658 B1 describes a method and apparatus for folding a planar blank in a desired manner.
- a plurality of bearing blocks arranged next to one another in a row and at a distance from each other are provided, each of which has a bearing surface on its upper side on which the blank can be placed.
- the bearing blocks are adjustable along a linear guide by means of a drive device in the form of a belt drive.
- folding swords are arranged above the blank, which can be adjusted relative to one another along a further linear guide and can also execute a movement perpendicular to the blank via a control link.
- a further drive device is provided for the movement of the folding swords.
- the folding device is not only structurally very complex, but it also requires a relatively large amount of space.
- the invention is based on the object of creating a folding device of the type mentioned, the structural design of which is simplified and which has a compact design.
- this object is achieved by a folding device having the features of claim 1 . It is provided that the immediately adjacent bearing blocks are movement-coupled to one another via a linkage and that the folding blade arranged between the movement-coupled bearing blocks is connected to the linkage in such a way that a change in the distance between the bearing blocks in the first direction can be transmitted to the folding blade for its adjustment movement by means of the linkage.
- the linkage serves on the one hand to synchronize the movement of the bearing blocks with one another. It is therefore only necessary to apply a drive movement to one bearing block or a few bearing blocks, with the drive movement being transmitted from the driven bearing block to the adjacent bearing block via the respective linkage.
- the folding blade is connected to the linkage in such a way that the change in distance between the bearing blocks and thus a movement of the linkage is transmitted to the associated folding blade and thus leads to its adjustment movement both with a movement component perpendicular to the blank and in the first direction. In this way it is achieved that no separate drive device is required for the folding sword or swords, since their adjustment movement is derived from the movement of the bearing blocks.
- bearing blocks and in particular all bearing blocks are coupled in motion to their directly adjacent bearing block via one of the linkages.
- the result is that only one bearing block can be adjusted and in particular displaced by means of the drive device and that all other bearing blocks are also adjusted or displaced as a result via the frames.
- only one drive device is provided, the drive effect of which is transmitted to all bearing blocks.
- two drive devices are provided, of which one drive device is connected to the first bearing block of the row of bearing blocks and the other drive device is connected to the last bearing block of the row of bearing blocks.
- An intermediate space is formed between immediately adjacent storage blocks, it being possible in a development of the invention for at least one of the folding swords to be arranged between a plurality of and in particular between all immediately adjacent storage blocks.
- the folding device preferably comprises a support frame with which the folding device can be built into a packaging machine in an exchangeable manner.
- the support frame comprises at least one linear guide for at least some of the bearing blocks and/or for at least some of the folding blades in order to ensure a defined movement of the bearing blocks in the first direction and/or the folding blades both in the first direction and with a vertical component is guaranteed.
- the linear guide can be formed by a guide rail or guide rod extending in the first direction.
- a plurality of guide rails or guide rods preferably run parallel to one another at a distance.
- two guide rails or guide rods are associated with each bearing block and each bearing block is, for example displaceably supported by a respective ball bushing on the guide rails or guide rods assigned to them.
- four guide rails or guide rods can be provided, with two of the guide rails or guide rods being assigned to a first group of bearing blocks and the other two guide rails or guide rods being assigned to a second group of guide rails or guide rods, and the bearing blocks of the first group and the bearing blocks of second group are arranged alternately one behind the other.
- At least one of the bearing blocks is held immovably relative to the support frame and that at least some of the bearing blocks are adjustable relative to the support frame.
- the bearing block which is held immovably relative to the support frame, serves as a counter bearing for the movement of the bearing blocks in the first direction.
- the first bearing block of the row of bearing blocks or the last bearing block of the row of bearing blocks is held immovably relative to the support frame and that the drive device is then mounted on the opposite bearing block, i.e. in the first case on the last bearing block of the Series of bearing blocks and in the latter case attacks the first bearing block of the series of bearing blocks, whereby the arranged between the two outer bearing blocks Bearing blocks are also adjusted or moved upon activation of the drive device.
- the middle bearing block of the row of bearing blocks or a bearing block arranged in the middle region of the row of bearing blocks is held immovably relative to the support frame and that a first drive device is mounted on the first bearing block in the row of bearing blocks and a second drive device is mounted on the attacks the last storage block in the row of storage blocks.
- the drive device can be a pneumatic or hydraulic piston-cylinder unit or an endlessly circulating belt, in particular a toothed belt, or a servomotor or a linear motor.
- the flat blank is held on the bearing surfaces of the bearing blocks by means of the holding device.
- the blank can be subjected to a clamping or compressive force.
- the holding device has at least one sucker. It can be provided in particular that the sucker is integrated into the bearing surface of the bearing block. At least one bearing block and in particular all bearing blocks preferably have one or two suction cups on their upper side, on which a negative pressure can be generated.
- the linkage which connects two directly adjacent bearing blocks to one another, preferably has a plurality of rod-shaped members which are connected to one another in an articulated manner and is in particular designed as a toggle lever.
- a toggle lever of the type mentioned can have two pendulum rods articulated on both sides, each pendulum rod preferably being articulated at one axial end in a connecting joint to the other pendulum rod and at its other axial end being articulated in a bearing joint to one of the bearing blocks.
- the folding sword is connected to the linkage or the toggle lever. It can be provided that the folding sword is connected to the toggle lever in the connecting joint.
- the folding blade has a folding blade carrier, which is attached to the linkage, and a folding blade head.
- the folding sword carrier can be formed by a vertically aligned plate.
- the folding blade head can be exchangeably held on the folding blade carrier, so that an adaptation to different flat blanks to be folded is possible by selecting and replacing corresponding folding blade heads.
- the folding blade head may have a pointed upward configuration and in particular be formed by a ledge with a triangular cross-section.
- the folding blade head is preferably arranged above the upper one of the two toggle levers and can be replaced without having to dismantle the linkage or the toggle levers.
- a folding device 10 for a flat blank Z made of cardboard or paperboard which has a transportable support frame 11 which is provided with handles 28 for handling.
- a linear guide 13 On the support frame 11 is a linear guide 13 with several parallel mounted at a distance next to each other arranged guide rods 24.
- the guide rods 24 extend in a straight line in a first direction R, as indicated by the arrow in FIG 1 is indicated.
- a plurality of bearing blocks 12.1 and 12.2 are arranged on the guide rods 24 in the first direction R in a row at a distance from one another.
- the middle bearing block 12.1 is immovably mounted on the guide rods 24.
- the other bearing blocks 12.2 can be displaced along the guide rods 24.
- Each folding sword 19 consists of a folding sword carrier 23 (see 3 ) and a folding blade head 25 interchangeably held on the folding blade carrier 23.
- the folding blade carrier 23 is formed by a vertically oriented plate and the folding blade head 25 has a pointed upward configuration and may be formed by a ledge with a triangular cross section.
- the linkage 20 comprises two toggle levers 21 arranged vertically one above the other at a distance.
- Each toggle lever 21 has two pendulum rods 22 articulated on both sides.
- Each pendulum rod 22 is articulated at its one axial end in a connecting joint 26 with the other pendulum rod 22 and at its other axial end in a bearing joint 27 with the respective bearing block 12.1, 12.2 articulated.
- Each folding tongue 19 is connected to the associated toggle levers 21 in the connecting joint 26 .
- the folding sword carrier 23 is connected to the two toggle levers 21 in an articulated manner, with the folding sword head 25 being able to be removed from the folding sword carrier 23 at any time without having to dismantle the linkage 20 .
- Two drive devices 14 in the form of piston-cylinder units 15 are arranged on the underside of the support frame 11 .
- the piston-cylinder units 15 are each firmly connected with their cylinder to the support frame 11, the free end of the piston being connected to that bearing block 12.2 which is arranged at the end of the row of bearing blocks, ie on the one hand with the 2 left bearing block and on the other hand with the according 2 right bearing block 12.2.
- a holding device 17 for the blank Z On the upper side of the bearing blocks 12.1, 12.2 there is a holding device 17 for the blank Z, which is formed by two suckers 18 which are integrated into the respective bearing block 12.1, 12.2.
- the suckers 18 are connected in the usual way via lines 29 to a vacuum source.
- the middle bearing block 12.1 is held immovably on the support frame 11.
- both are according to 2 left bearing block 12.2 as also the one according to 2 right bearing block 12.2 moves along the guide rods 24 inwards toward each other. This movement is transmitted via the linkage 20 to the bearing blocks 12.2 that are not driven directly.
- the drive movement of the two outer bearing blocks 12.2 reduces the mutual distance between the bearing joints 27 of the respective toggle lever 21, as a result of which the toggle lever 21 dodge upwards, ie the respective connecting joint 26 performs an upward movement.
- the folding tongues 19 articulated on the connecting joints 26 also perform an upward movement, as a result of which the respective folding tongue head 26 comes into contact with the blank Z resting on the bearing surfaces 16 and exerts a deforming force on it perpendicular to the blank plane.
- the deformation of the blank Z is further supported by the moving together of the bearing blocks 11.1 and 11.2. This state is in 4 shown.
- figure 5 shows the bearing blocks in their fully collapsed state, in which the folding tongues 19 protrude upwards and have deformed the blank Z.
- the negative pressure on the suction cups 18 of the holding device 17 is switched off, so that the deformed blank Z can be removed from the folding device 10 in an upward direction.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
Eine Faltvorrichtung für einen ebenen Zuschnitt weist mehrere in einer Reihe in einer ersten Richtung auf Abstand nebeneinander angeordnete Lagerblöcke auf, deren gegenseitiger Abstand mittels einer Antriebsvorrichtung veränderbar ist und die jeweils eine Auflagerfläche für den Zuschnitt besitzen. Der Zuschnitt ist mittels einer Haltevorrichtung auf den Auflagerflächen gehalten. Mehrere Faltschwerter sind in der ersten Richtung auf Abstand nebeneinander angeordnet, wobei zwischen unmittelbar benachbarten Lagerblöcken zumindest eines der Faltschwerter angeordnet ist. Die Faltschwerter können unter Änderung ihres gegenseitigen Abstandes mit einer zusätzlichen Bewegungskomponente senkrecht zum Zuschnitt verstellt werden. Benachbarte Lagerblöcke sind über ein Gestänge bewegungsgekoppelt. Das zwischen den benachbarten Lagerblöcken angeordnete Faltschwert ist so mit dem Gestänge verbunden, dass die Abstandsänderung der Lagerblöcke mittels des Gestänges auf das Faltschwert zu dessen Verstellung übertragbar ist.A folding device for a flat blank has a plurality of bearing blocks which are spaced apart from one another in a row in a first direction and whose mutual spacing can be changed by means of a drive device and which each have a bearing surface for the blank. The blank is held on the bearing surfaces by means of a holding device. A plurality of folding blades are arranged at a distance next to one another in the first direction, at least one of the folding blades being arranged between directly adjacent bearing blocks. The folding swords can be adjusted perpendicular to the blank by changing their mutual distance with an additional movement component. Neighboring bearing blocks are movement-coupled via a linkage. The folding blade arranged between the adjacent bearing blocks is connected to the linkage in such a way that the change in the distance between the bearing blocks can be transmitted to the folding blade in order to adjust it by means of the linkage.
Description
Die Erfindung betrifft eine Faltvorrichtung für einen ebenen Zuschnitt, mit mehreren in einer Reihe in einer ersten Richtung auf Abstand nebeneinander angeordneten Lagerblöcken, deren gegenseitiger Abstand in der ersten Richtung mittels einer Antriebsvorrichtung veränderbar ist und die jeweils eine Auflagerfläche für den Zuschnitt aufweisen, einer Haltevorrichtung, mittels der der Zuschnitt auf den Auflagerflächen gehalten ist, und mehreren Faltschwertern, die in der ersten Richtung auf Abstand nebeneinander angeordnet sind, wobei zwischen unmittelbar benachbarten Lagerblöcken zumindest eines der Faltschwerter angeordnet ist und wobei die Faltschwerter unter Änderung ihres gegenseitigen Abstandes in der ersten Richtung und mit einer zusätzlichen Bewegungskomponente senkrecht zum Zuschnitt verstellbar sind.The invention relates to a folding device for a flat blank, with a plurality of bearing blocks arranged in a row in a first direction at a distance from one another, the mutual spacing of which can be changed in the first direction by means of a drive device and which each have a bearing surface for the blank, a holding device, by means of which the blank is held on the bearing surfaces, and a plurality of folding blades which are spaced apart from one another in the first direction, at least one of the folding blades being arranged between immediately adjacent storage blocks and the folding blades changing their mutual spacing in the first direction and are adjustable with an additional movement component perpendicular to the cut.
In der Verpackungstechnik tritt häufig das Problem auf, dass mehrere Objekte, beispielsweise Ampullen, in einer größeren Umverpackung, beispielsweise einer Schachtel sicher positioniert werden müssen. Zu diesem Zweck ist es bekannt, in die Schachtel einen gefalteten Einsatz einzulegen, der aufgrund seiner Faltung Aufnahmefächer für die Ampullen besitzt. Der Einsatz wird üblicherweise aus einem ebenen Zuschnitt beispielsweise aus Pappe, Karton oder Kunststoff durch Falten aufgerichtet und hergestellt und dann in die Schachtel eingesetzt.In packaging technology, the problem often arises that a number of objects, for example ampoules, have to be securely positioned in a larger outer packaging, for example a box. For this purpose it is known to insert a folded insert into the box, which, due to its folding, has storage compartments for the ampoules. The insert is usually erected and manufactured by folding a flat blank, for example made of cardboard, cardboard or plastic, and then inserted into the box.
In der
Um den Zuschnitt aus seiner ebenen Ausgangsform auszulenken, sind oberhalb des Zuschnittes mehrere Faltschwerter angeordnet, die längs einer weiteren Linearführung relativ zueinander verstellbar sind und zusätzlich über eine Steuerkulisse eine Bewegung senkrecht zum Zuschnitt ausführen können. Für die Bewegung der Faltschwerter ist eine weitere Antriebsvorrichtung vorgesehen. Auf diese Weise wird die Faltvorrichtung nicht nur konstruktiv sehr aufwändig, sondern sie benötigt auch einen relativ großen Bauraum.In order to deflect the blank from its flat initial shape, several folding swords are arranged above the blank, which can be adjusted relative to one another along a further linear guide and can also execute a movement perpendicular to the blank via a control link. A further drive device is provided for the movement of the folding swords. In this way, the folding device is not only structurally very complex, but it also requires a relatively large amount of space.
Der Erfindung liegt die Aufgabe zugrunde, eine Faltvorrichtung der genannten Art zu schaffen, deren konstruktiver Aufbau vereinfacht ist und die eine kompakte Bauform besitzt.The invention is based on the object of creating a folding device of the type mentioned, the structural design of which is simplified and which has a compact design.
Diese Aufgabe wird erfindungsgemäß durch eine Faltvorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Dabei ist vorgesehen, dass die unmittelbar benachbarten Lagerblöcke über ein Gestänge miteinander bewegungsgekoppelt sind und dass das zwischen den bewegungsgekoppelten Lagerblöcken angeordnete Faltschwert mit dem Gestänge so verbunden ist, das eine Abstandsänderung der Lagerblöcke in der ersten Richtung mittels des Gestänges auf das Faltschwert zu dessen Verstellbewegung übertragbar ist.According to the invention, this object is achieved by a folding device having the features of claim 1 . It is provided that the immediately adjacent bearing blocks are movement-coupled to one another via a linkage and that the folding blade arranged between the movement-coupled bearing blocks is connected to the linkage in such a way that a change in the distance between the bearing blocks in the first direction can be transmitted to the folding blade for its adjustment movement by means of the linkage.
Das Gestänge dient erfindungsgemäß einerseits dazu, die Bewegung der Lagerblöcke untereinander zu synchronisieren. Es ist somit lediglich notwendig, eine Antriebsbewegung auf einen Lagerblock oder wenige Lagerblöcke aufzubringen, wobei die Antriebsbewegung von dem angetriebenen Lagerblock über das jeweilige Gestänge auf den benachbarten Lagerblock übertragen wird. Gleichzeitig ist das Faltschwert mit dem Gestänge so verbunden, das die Abstandsänderung der Lagerblöcke und somit eine Bewegung des Gestänges auf das zugeordnete Faltschwert übertragen wird und somit zu dessen Verstellbewegung sowohl mit einer Bewegungskomponente senkrecht zum Zuschnitt als auch in der ersten Richtung führt. Auf diese Weise ist erreicht, dass für das Faltschwert oder die Faltschwerter keine eigene Antriebsvorrichtung notwendig ist, da ihre Verstellbewegung von der Bewegung der Lagerblöcke abgeleitet wird.According to the invention, the linkage serves on the one hand to synchronize the movement of the bearing blocks with one another. It is therefore only necessary to apply a drive movement to one bearing block or a few bearing blocks, with the drive movement being transmitted from the driven bearing block to the adjacent bearing block via the respective linkage. At the same time, the folding blade is connected to the linkage in such a way that the change in distance between the bearing blocks and thus a movement of the linkage is transmitted to the associated folding blade and thus leads to its adjustment movement both with a movement component perpendicular to the blank and in the first direction. In this way it is achieved that no separate drive device is required for the folding sword or swords, since their adjustment movement is derived from the movement of the bearing blocks.
Vorzugsweise ist vorgesehen, dass mehrere Lagerblöcke und insbesondere alle Lagerblöcke mit ihrem unmittelbar benachbarten Lagerblock über eines der Gestänge bewegungsgekoppelt sind. In einer möglichen Ausgestaltung der Erfindung ist damit erreicht, dass mittels der Antriebsvorrichtung lediglich ein Lagerblock verstellt und insbesondere verschoben werden kann und dass dadurch über die Gestelle alle anderen Lagerblöcke ebenfalls verstellt oder verschoben werden.It is preferably provided that several bearing blocks and in particular all bearing blocks are coupled in motion to their directly adjacent bearing block via one of the linkages. In a possible embodiment of the invention, the result is that only one bearing block can be adjusted and in particular displaced by means of the drive device and that all other bearing blocks are also adjusted or displaced as a result via the frames.
In einer möglichen Ausgestaltung der Erfindung ist vorgesehen, dass nur eine Antriebsvorrichtung vorgesehen ist, deren Antriebswirkung auf alle Lagerblöcke übertragen wird. In bevorzugter Ausgestaltung ist der Erfindung ist vorgesehen, dass zwei Antriebsvorrichtungen vorgesehen sind, von denen eine Antriebsvorrichtung mit dem ersten Lagerblock der Reihe von Lagerblöcken und die andere Antriebsvorrichtung mit dem letzten Lagerblock der Reihe von Lagerblöcken verbunden ist.In one possible embodiment of the invention, only one drive device is provided, the drive effect of which is transmitted to all bearing blocks. In a preferred embodiment of the invention it is provided that two drive devices are provided, of which one drive device is connected to the first bearing block of the row of bearing blocks and the other drive device is connected to the last bearing block of the row of bearing blocks.
Zwischen unmittelbar benachbarten Lagerblöcken ist ein Zwischenraum gebildet, wobei in Weiterbildung der Erfindung vorgesehen sein kann, dass zwischen mehreren und insbesondere zwischen allen unmittelbar benachbarten Lagerblöcken zumindest eines der Faltschwerter angeordnet ist.An intermediate space is formed between immediately adjacent storage blocks, it being possible in a development of the invention for at least one of the folding swords to be arranged between a plurality of and in particular between all immediately adjacent storage blocks.
Die Faltvorrichtung umfasst vorzugsweise ein Traggestell, mit dem die Faltvorrichtung in eine Verpackungsmaschine in auswechselbarer Weise eingebaut werden kann. In Weiterbildung der Erfindung umfasst das Traggestell zumindest eine Linearführung für zumindest einige der Lagerblöcke und/oder für zumindest einige der Faltschwerter, um eine definierte Bewegung der Lagerblöcke in der ersten Richtung und/oder der Faltschwerter sowohl in der ersten Richtung als auch mit einer senkrechten Komponente dazu gewährleistet ist.The folding device preferably comprises a support frame with which the folding device can be built into a packaging machine in an exchangeable manner. In a further development of the invention, the support frame comprises at least one linear guide for at least some of the bearing blocks and/or for at least some of the folding blades in order to ensure a defined movement of the bearing blocks in the first direction and/or the folding blades both in the first direction and with a vertical component is guaranteed.
Die Linearführung kann von einer sich in die erste Richtung erstreckenden Führungsschiene oder Führungsstange gebildet sein. Vorzugsweise verlaufen mehreren Führungsschienen oder Führungsstangen auf Abstand parallel zueinander. Vorzugsweise sind jedem Lagerblock zwei Führungsschienen oder Führungsstangen zugeordnet und jeder Lagerblock ist beispielsweise durch jeweils eine Kugelbuchse auf den ihnen zugeordneten Führungsschienen oder Führungsstangen verschieblich abgestützt. In Weiterbildung der Erfindung können vier Führungsschienen oder Führungsstangen vorgesehen sein, wobei zwei der Führungsschienen oder Führungsstangen einer ersten Gruppe von Lagerblöcken und die beiden anderen Führungsschienen oder Führungsstangen einer zweiten Gruppe von Führungsschienen oder Führungsstangen zugeordnet sind und wobei die Lagerblöcke der ersten Gruppe und die Lagerblöcke der zweiten Gruppe abwechselnd hintereinander angeordnet sind. Dadurch lässt sich erreichen, dass die Kugelbuchsen das Zusammenschieben der Lagerblöcke nicht behindern und sich somit eine sehr geringe Abmessung der zusammengeschobenen Lagerblöcke erzielen lässt.The linear guide can be formed by a guide rail or guide rod extending in the first direction. A plurality of guide rails or guide rods preferably run parallel to one another at a distance. Preferably, two guide rails or guide rods are associated with each bearing block and each bearing block is, for example displaceably supported by a respective ball bushing on the guide rails or guide rods assigned to them. In a further development of the invention, four guide rails or guide rods can be provided, with two of the guide rails or guide rods being assigned to a first group of bearing blocks and the other two guide rails or guide rods being assigned to a second group of guide rails or guide rods, and the bearing blocks of the first group and the bearing blocks of second group are arranged alternately one behind the other. As a result, it can be achieved that the ball bushings do not impede the pushing together of the bearing blocks and thus a very small dimension of the pushed together bearing blocks can be achieved.
In Weiterbildung der Erfindung kann vorgesehen sein, dass zumindest einer der Lagerblöcke relativ zum Traggestell unverschieblich gehalten ist und dass zumindest einige der Lagerblöcke relativ zum Traggestell verstellbar sind. Der unverschieblich relativ zum Traggestell gehaltene Lagerblock dient dabei als Gegenlager für die Bewegung der Lagerblöcke in der ersten Richtung.In a development of the invention it can be provided that at least one of the bearing blocks is held immovably relative to the support frame and that at least some of the bearing blocks are adjustable relative to the support frame. The bearing block, which is held immovably relative to the support frame, serves as a counter bearing for the movement of the bearing blocks in the first direction.
In einer möglichen Ausgestaltung der Erfindung kann vorgesehen sein, dass der erste Lagerblock der Reihe von Lagerblöcken oder der letzte Lagerblock der Reihe von Lagerblöcken relativ zum Traggestell unverschieblich gehalten ist und dass dann die Antriebsvorrichtung am jeweils entgegengesetzten Lagerblock, d.h. im ersten Fall am letzten Lagerblock der Reihe von Lagerblöcken und im zweitgenannten Fall am ersten Lagerblock der Reihe von Lagerblöcken angreift, wodurch die zwischen den beiden äußeren Lagerblöcken angeordneten Lagerblöcke bei Aktivierung der Antriebsvorrichtung ebenfalls verstellt oder verschoben werden.In a possible embodiment of the invention, it can be provided that the first bearing block of the row of bearing blocks or the last bearing block of the row of bearing blocks is held immovably relative to the support frame and that the drive device is then mounted on the opposite bearing block, i.e. in the first case on the last bearing block of the Series of bearing blocks and in the latter case attacks the first bearing block of the series of bearing blocks, whereby the arranged between the two outer bearing blocks Bearing blocks are also adjusted or moved upon activation of the drive device.
In bevorzugter Ausgestaltung der Erfindung ist vorgesehen, dass der mittlere Lagerblock der Reihe von Lagerblöcken oder ein im mittleren Bereich der Reihe von Lagerblöcken angeordnete Lagerblock relativ zum Traggestell unverschieblich gehalten ist und dass eine erste Antriebsvorrichtung am ersten Lagerblock der Reihe von Lagerblöcken und eine zweite Antriebsvorrichtung am letzten Lagerblock der Reihe von Lagerblöcken angreift.In a preferred embodiment of the invention, it is provided that the middle bearing block of the row of bearing blocks or a bearing block arranged in the middle region of the row of bearing blocks is held immovably relative to the support frame and that a first drive device is mounted on the first bearing block in the row of bearing blocks and a second drive device is mounted on the attacks the last storage block in the row of storage blocks.
Bei der Antriebsvorrichtung kann es sich um eine pneumatische oder hydraulische Kolben-Zylinder-Einheit oder um einen endlos umlaufenden Riemen insbesondere Zahnriemen oder um einen Servomotor oder einen Linearmotor handeln.The drive device can be a pneumatic or hydraulic piston-cylinder unit or an endlessly circulating belt, in particular a toothed belt, or a servomotor or a linear motor.
Der ebene Zuschnitt wird mittels der Haltevorrichtung auf den Auflagerflächen der Lagerblöcke gehalten. Dabei kann der Zuschnitt einer Klemm- oder Druckkraft ausgesetzt sein. In bevorzugter Ausgestaltung der Erfindung ist vorgesehen, dass die Haltevorrichtung zumindest einen Sauger aufweist. Dabei kann insbesondere vorgesehen sein, dass der Sauger in die Auflagerfläche des Lagerblocks integriert ist. Vorzugsweise besitzen zumindest ein Lagerblock und insbesondere alle Lagerblöcke beispielsweise auf ihrer Oberseite einen oder zwei Sauger, an denen ein Unterdruck erzeugt werden kann. Sobald der ebene, zu faltende Zuschnitt auf die Auflagerfläche aufgesetzt ist, wird der Unterdruck aktiviert, wodurch der Zuschnitt einer Saugkraft ausgesetzt wird, die ihn gegen die Auflagerflächen zieht. Dadurch ist der Zuschnitt in allen Verfahrensschritten sicher auf den Auflagerflächen gehalten.The flat blank is held on the bearing surfaces of the bearing blocks by means of the holding device. The blank can be subjected to a clamping or compressive force. In a preferred embodiment of the invention, it is provided that the holding device has at least one sucker. It can be provided in particular that the sucker is integrated into the bearing surface of the bearing block. At least one bearing block and in particular all bearing blocks preferably have one or two suction cups on their upper side, on which a negative pressure can be generated. Once the flat blank to be folded is placed on the support surface, the vacuum is activated, subjecting the blank to a suction force that pulls it against the support surfaces. As a result, the blank is held securely on the support surfaces in all process steps.
Das Gestänge, das zwei unmittelbar benachbarte Lagerblöcke miteinander verbindet, weist vorzugsweise mehrere gelenkig miteinander verbundene stabförmige Glieder auf und ist insbesondere als Kniehebel ausgestaltet. Ein Kniehebel der genannten Art kann zwei beidseitig gelenkig gelagerte Pendelstäbe aufweisen, wobei jeder Pendelstab vorzugsweise bei seinem einen axialen Ende in einem Verbindungsgelenk mit dem jeweils anderen Pendelstab gelenkig verbunden und an seinem anderen axialen Ende in einem Lagergelenk mit einem der Lagerblöcke gelenkig verbunden ist.The linkage, which connects two directly adjacent bearing blocks to one another, preferably has a plurality of rod-shaped members which are connected to one another in an articulated manner and is in particular designed as a toggle lever. A toggle lever of the type mentioned can have two pendulum rods articulated on both sides, each pendulum rod preferably being articulated at one axial end in a connecting joint to the other pendulum rod and at its other axial end being articulated in a bearing joint to one of the bearing blocks.
Dabei kann vorgesehen sein, dass das Gestänge zwei mit Abstand übereinander angeordnete Kniehebel der genannten Art aufweist.Provision can be made for the linkage to have two toggle levers of the type mentioned which are arranged one above the other at a distance.
Das Faltschwert ist mit dem Gestänge bzw. dem Kniehebel verbunden. Dabei kann vorgesehen sein, dass das Faltschwert in dem Verbindungsgelenk mit dem Kniehebelverbunden ist.The folding sword is connected to the linkage or the toggle lever. It can be provided that the folding sword is connected to the toggle lever in the connecting joint.
In Weiterbildung der Erfindung kann vorgesehen sein, dass das Faltschwert einen Faltschwertträger, der am Gestänge angebracht ist, und einen Faltschwertkopf aufweist. Der Faltschwertträger kann von einer vertikal ausgerichteten Platte gebildet sein. Der Faltschwertkopf kann auswechselbar an dem Faltschwertträger gehalten sein, so dass eine Anpassung an unterschiedliche zu faltende ebene Zuschnitte durch Wahl und Auswechslung entsprechender Faltschwertköpfe möglich ist. Der Faltschwertkopf kann eine spitz nach oben zulaufende Konfiguration aufweisen und insbesondere von einer Leiste mit einem dreieckigen Querschnitt gebildet sein. Vorzugsweise ist der Faltschwertkopf oberhalb des oberen der beiden Kniehebel angeordnet und kann ausgewechselt werden, ohne das Gestänge oder die Kniehebel demontieren zu müssen.In a development of the invention, it can be provided that the folding blade has a folding blade carrier, which is attached to the linkage, and a folding blade head. The folding sword carrier can be formed by a vertically aligned plate. The folding blade head can be exchangeably held on the folding blade carrier, so that an adaptation to different flat blanks to be folded is possible by selecting and replacing corresponding folding blade heads. The folding blade head may have a pointed upward configuration and in particular be formed by a ledge with a triangular cross-section. The folding blade head is preferably arranged above the upper one of the two toggle levers and can be replaced without having to dismantle the linkage or the toggle levers.
Weitere Einzelheiten und Merkmale der Erfindung sind aus der folgenden Beschreibung eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung ersichtlich. Es zeigen:
- Fig. 1
- eine perspektivische Ansicht einer erfindungsgemäßen Faltvorrichtung,
- Fig. 2
- die Faltvorrichtung gemäß
Fig. 1 in Seitenansicht mit aufgelegtem Zuschnitt, - Fig. 3
- eine ausschnittsweise vergrößerte Darstellung der Faltvorrichtung gemäß
Fig. 2 , - Fig. 4
- die Faltvorrichtung gemäß
Fig. 2 während der Verstellung der Lagerblöcke und - Fig. 5
- die Faltvorrichtung gemäß
Fig. 4 in vollständig zusammengeschobener Position.
- 1
- a perspective view of a folding device according to the invention,
- 2
- according to the folding device
1 in side view with blank placed, - 3
- an enlarged representation of a detail of the folding device according to FIG
2 , - 4
- according to the
folding device 2 during the adjustment of the bearing blocks and - figure 5
- according to the folding device
4 in fully collapsed position.
In den
Auf den Führungsstangen 24 sind mehrere Lagerblöcke 12.1 und 12.2 in der ersten Richtung R in einer Reihe auf Abstand nebeneinander angeordnet. Der mittlere Lagerblock 12.1 ist unverschieblich auf den Führungsstangen 24 montiert. Die anderen Lagerblöcke 12.2 sind längs den Führungsstangen 24 verschieblich.A plurality of bearing blocks 12.1 and 12.2 are arranged on the
Zwischen zwei unmittelbar benachbarten Lagerblöcken 12.1, 12.2 ist jeweils ein Faltschwert 19 angeordnet, das ebenfalls auf den Führungsstangen 24 verschieblich geführt ist. Jedes Faltschwert 19 besteht aus einem Faltschwertträger 23 (siehe
Unmittelbar benachbarte Lagerblöcke 11.1, 11.2 sind jeweils über ein Gestänge 20 miteinander bewegungsgekoppelt. Das Gestänge 20 umfasst zwei auf Abstand vertikal übereinander angeordnete Kniehebel 21. Jeder Kniehebel 21 weist zwei beidseitig gelenkig gelagerte Pendelstäbe 22 auf. Jeder Pendelstab 22 ist an seinem einem axialen Ende in einem Verbindungsgelenk 26 mit dem jeweils anderen Pendelstab 22 gelenkig verbunden und an seinem anderen axialen Ende in einem Lagergelenk 27 mit dem jeweiligen Lagerblock 12.1, 12.2 gelenkig verbunden.Immediately adjacent bearing blocks 11.1, 11.2 are each coupled to one another for movement via a
Jedes Faltschwert 19 ist in dem Verbindungsgelenk 26 mit den zugehörigen Kniehebeln 21 verbunden. Insbesondere ist der Faltschwertträger 23 an die beiden Kniehebel 21 gelenkig angeschlossen, wobei der Faltschwertkopf 25 jederzeit vom Faltschwertträger 23 abgenommen werden kann, ohne das Gestänge 20 demontieren zu müssen.Each
Auf der Unterseite des Traggestells 11 sind zwei Antriebsvorrichtungen 14 in Form von Kolben-Zylinder-Einheiten 15 angeordnet. Die Kolben-Zylinder-Einheiten 15 sind mit ihrem Zylinder jeweils fest mit dem Traggestell 11 verbunden, wobei das freie Ende des Kolbens mit demjenigen Lagerblock 12.2 verbunden ist, der am Ende der Reihe von Lagerblöcken angeordnet ist, d.h. einerseits mit dem gemäß
Auf der Oberseite der Lagerblöcke 12.1, 12.2 ist jeweils eine Haltevorrichtung 17 für den Zuschnitt Z gebildet, die jeweils von zwei Saugern 18 gebildet ist, die in den jeweiligen Lagerblock 12.1, 12.2 integriert sind. Die Sauger 18 sind in üblicher Weise über Leitungen 29 mit einer Unterdruckquelle verbunden.On the upper side of the bearing blocks 12.1, 12.2 there is a holding
Wenn die beiden Antriebsvorrichtungen 14 aktiviert werden, werden sowohl der gemäß
Durch die Antriebsbewegung der beiden äußeren Lagerblöcke 12.2 verringert sich der gegenseitige Abstand zwischen den Lagergelenken 27 der jeweiligen Kniehebel 21, wodurch die Kniehebel 21 nach oben ausweichen, d.h. das jeweilige Verbindungsgelenk 26 führt eine nach oben gerichtete Bewegung aus. Dadurch führen auch die an den Verbindungsgelenken 26 angelenkten Faltschwerter 19 eine nach oben gerichtete Bewegung aus, wodurch der jeweilige Faltschwertkopf 26 mit dem auf den Auflagerflächen 16 aufliegenden Zuschnitt Z in Anlage kommt und auf diesen eine verformende Kraft senkrecht zur der Zuschnittebene ausübt. Die Verformung des Zuschnitts Z wird durch das Zusammenfahren der Lagerblöcke 11.1 und 11.2 noch weiter unterstützt. Dieser Zustand ist in
Claims (16)
dadurch gekennzeichnet, dass ein Traggestell (11) vorgesehen ist, das zumindest eine Linearführung (13) für zumindest einige der Lagerblöcke (12.1., 12.2) und/oder für zumindest einige der Faltschwerter (19) aufweist.Folding device according to one of claims 1 to 3,
characterized in that a support frame (11) is provided which has at least one linear guide (13) for at least some of the bearing blocks (12.1., 12.2) and/or for at least some of the folding swords (19).
dadurch gekennzeichnet, dass die Antriebsvorrichtung (14) an demjenigen Lagerblock (12.2) eingreift, der am Ende der Reihe von Lagerblöcken (12.1, 12.2) angeordnet ist.Folding device according to one of claims 1 to 5,
characterized in that the drive device (14) engages on that bearing block (12.2) which is arranged at the end of the row of bearing blocks (12.1, 12.2). is.
dadurch gekennzeichnet, dass an beiden Lagerblöcken (12.2), die am Ende der Reihe von Lagerblöcken (12.1, 12.2) angeordnet sind, jeweils eine Antriebsvorrichtung (14) angreift.Folding device according to one of claims 1 to 6,
characterized in that a drive device (14) acts on each of the two bearing blocks (12.2) which are arranged at the end of the row of bearing blocks (12.1, 12.2).
dadurch gekennzeichnet, dass die Antriebsvorrichtung (14) eine Kolben-Zylinder-Einheit (15) oder ein endlos umlaufender Riemen oder ein Servomotor oder ein Linearmotor ist.Folding device according to one of claims 1 to 7,
characterized in that the drive device (14) is a piston-cylinder unit (15) or an endlessly revolving belt or a servo motor or a linear motor.
dadurch gekennzeichnet, dass die Haltevorrichtung (17) zumindest einen Sauger (18) aufweist.Folding device according to one of claims 1 to 8,
characterized in that the holding device (17) has at least one sucker (18).
dadurch gekennzeichnet, dass das Gestänge (20) zumindest einen Kniehebel (21) aufweist.Folding device according to one of claims 1 to 10,
characterized in that the linkage (20) has at least one toggle lever (21).
dadurch gekennzeichnet, dass das Faltschwert (19) einen Faltschwertträger (23), der am Gestänge (20) angebracht ist, und einen Faltschwertkopf (25) aufweist.Folding device according to one of claims 1 to 14,
characterized in that the folding blade (19) has a folding blade carrier (23) attached to the linkage (20) and a folding blade head (25).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020123159.8A DE102020123159A1 (en) | 2020-09-04 | 2020-09-04 | Folding device for a flat blank |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3964465A1 true EP3964465A1 (en) | 2022-03-09 |
Family
ID=77989711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21194270.1A Withdrawn EP3964465A1 (en) | 2020-09-04 | 2021-09-01 | Folding device for a flat blank |
Country Status (3)
Country | Link |
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US (1) | US20220073309A1 (en) |
EP (1) | EP3964465A1 (en) |
DE (1) | DE102020123159A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024166141A1 (en) * | 2023-02-10 | 2024-08-15 | G.D S.P.A | Method and machine for folding sheets |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2592632A1 (en) * | 1986-01-09 | 1987-07-10 | Chandellier Antoine | MULTIPLE BELLOWS WITH FLAPS AND SHUTTERS |
EP0491658B1 (en) | 1990-12-18 | 1996-02-28 | Dividella AG | Method and apparatus to deform a sheet material into a wave form |
JPH09286063A (en) * | 1996-04-23 | 1997-11-04 | Hitachi Zosen Corp | Method for imparting bending directionality to sheet and apparatus |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2709950A (en) * | 1948-11-04 | 1955-06-07 | Gen Motors Corp | Bellows folding machine |
GB1250314A (en) | 1968-08-08 | 1971-10-20 | ||
EP0022884A1 (en) | 1979-07-18 | 1981-01-28 | ASH & LACY LIMITED | Method and apparatus for bending sheet material and bent sheet material obtained |
US4616991A (en) | 1985-08-15 | 1986-10-14 | Her Majesty The Queen In Right Of The Province Of Alberta As Represented By The Minister Of Energy And Natural Resources | Apparatus for the manufacture of a corrugated wafer board panel |
US5290621A (en) * | 1990-10-03 | 1994-03-01 | Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Forestry | Flat-topped wave-board panel |
JP6430379B2 (en) | 2012-08-13 | 2018-11-28 | テッセレイテッド グループ,エルエルシー | Device for folding a sheet of material into a support structure |
-
2020
- 2020-09-04 DE DE102020123159.8A patent/DE102020123159A1/en not_active Withdrawn
-
2021
- 2021-09-01 EP EP21194270.1A patent/EP3964465A1/en not_active Withdrawn
- 2021-09-03 US US17/466,036 patent/US20220073309A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2592632A1 (en) * | 1986-01-09 | 1987-07-10 | Chandellier Antoine | MULTIPLE BELLOWS WITH FLAPS AND SHUTTERS |
EP0491658B1 (en) | 1990-12-18 | 1996-02-28 | Dividella AG | Method and apparatus to deform a sheet material into a wave form |
JPH09286063A (en) * | 1996-04-23 | 1997-11-04 | Hitachi Zosen Corp | Method for imparting bending directionality to sheet and apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024166141A1 (en) * | 2023-02-10 | 2024-08-15 | G.D S.P.A | Method and machine for folding sheets |
Also Published As
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DE102020123159A1 (en) | 2022-03-10 |
US20220073309A1 (en) | 2022-03-10 |
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