EP2161112B1 - Dispositif de découpe et méthode de découpe - Google Patents

Dispositif de découpe et méthode de découpe Download PDF

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Publication number
EP2161112B1
EP2161112B1 EP08163601A EP08163601A EP2161112B1 EP 2161112 B1 EP2161112 B1 EP 2161112B1 EP 08163601 A EP08163601 A EP 08163601A EP 08163601 A EP08163601 A EP 08163601A EP 2161112 B1 EP2161112 B1 EP 2161112B1
Authority
EP
European Patent Office
Prior art keywords
cutting
honeycomb material
blade
transport
cutting 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.)
Not-in-force
Application number
EP08163601A
Other languages
German (de)
English (en)
Other versions
EP2161112A1 (fr
Inventor
Wieger Wiegersma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Axxion Technology BV
Original Assignee
Axxion Technology BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Axxion Technology BV filed Critical Axxion Technology BV
Priority to PL08163601T priority Critical patent/PL2161112T3/pl
Priority to EP08163601A priority patent/EP2161112B1/fr
Publication of EP2161112A1 publication Critical patent/EP2161112A1/fr
Application granted granted Critical
Publication of EP2161112B1 publication Critical patent/EP2161112B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/08—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type
    • B26D1/085—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type for thin material, e.g. for sheets, strips or the like

Definitions

  • the present invention relates to a cutting device for cutting honeycomb material.
  • Document US 3,257,253 discloses a cutting device for cutting a segment of laminated celular panel material form a substantially endless band comprising a transport device for transporting the band material in a transport direction, a blade mounted downstream of the transport device on a frame above a transport plane of the band of honeycomb material, and positioned for cutting the segment from the band material, and an actuator for driving the cutting blade in an downward direction, wherein said cutting device further comprises a control device, operationally coupled to the actuator and the driving device for mutually tuning the transport speed of the transport device and the reciprocating movement of the blade.
  • the unexpanded honeycomb material is expanded before its use. This can be done in a production step directly after its production. More often, however, the honeycomb material is transported in its unexpanded state and expanded before its use. This can take place remote from the production site.
  • the almost endless band of expanded honeycomb material will often be cut into sheets or segments of honeycomb material for further use.
  • the cutting process is often discontinuous, which disrupts the further processing steps in which the sheets will be used often as a filling material.
  • the cutting process can also cause abutment of material against a cutting blade, or, in case of the use of a cutting device with a guillotine-type of blade, it can result in that the honeycomb material is cut at an angle in case of a cut in transverse direction of a band of honeycomb material.
  • An object of the invention is to improve current cutting devices for honeycomb material.
  • this device provides the possibility of cutting the honeycomb material very fast, thus allowing increased running speed of the material. Furthermore, it allows very broad bands of honeycomb material, with a width of up to 200 cm, even up to 250 cm.
  • the invention furthermore provides a method for cutting a segment of expanded honeycomb material according to claim 11.
  • said blade is positioned for cutting the band of honeycomb material in substantially transverse direction, and wherein said actuator drives said blade up and down, to reciprocate.
  • the fast cutting speed further allows the blade to be mounted statically with respect to the running direction of the band of honeycomb material. It is know to have blades moving along with the honeycomb material during cutting and moving back to their starting position after cutting, in order to increase the running speed of the material, of to limit the disruption of the band as much as possible. This, however, requires complex cutting devices and control systems and actuators. These cutting devices are usually actuated using hydraulic cylinders.
  • the current invention provides faster cutting with a very narrow space (in the running direction) of the cutting device. In fact, it can be build to require only about 50 cm. In a very compact building concept, it may require as little as 20 cm.
  • the transport device comprises rollers and a driving device for driving the rollers.
  • the actuator comprises a linear motor.
  • the linear motor is mounted with its direction of motion substantially perpendicular to the plane of the honeycomb material.
  • the frame mounts said blade at its ends and along the edge away from the cutting edge.
  • the cutting device further comprises a transport device mounted downstream of the first transport device and the blade.
  • the blade is mounted for cutting in longitudinal direction of the cells.
  • the cutting edge is mounted in an embodiment upward when the blade is positioned below the band of honeycomb material when the cutting device is in operation.
  • the band of expanded honeycomb material is highly flexible and compressible in its longitudinal direction. In the invention in which the transport device is operationally coupled to the movements of the blade, this property is used.
  • the cutting device further comprises dampers for biasing motion of the cutting blade between two end positions.
  • the blade is a thin cutting blade.
  • the cutting device of the invention allows very accurate cutting. This is in particular of interest for automated production systems in which the cut parts of honeycomb material are automatically handled in a production process.
  • the alternative device may be defined as a cutting device for cutting a segment of honeycomb material from a substantially endless band of honeycomb material, comprising a transport device for transporting the band honeycomb material in a transport direction, a blade mounted downstream of the transport device on a frame above a transport plane of the band of honeycomb material, and positioned for cutting the segment from the band honeycomb material, and an actuator for driving the cutting blade, wherein said actuator comprises a linear electrical motor.
  • the cutting device further comprises a control device, operationally coupled to the actuator and the driving device for mutually tuning the transport speed of the transport device and the reciprocating movement of the blade. Positioning of the blade above the band of honeycomb material will, however, require a heavy frame above the band of material and requires more space in running direction of the material.
  • the alternative cutting device may be the subject of a divisional application.
  • the invention further pertains to an apparatus comprising one or more of the characterising features described in the description and/or shown in the attached drawings.
  • the invention further pertains to a method comprising one or more of the characterising features described in the description and/or shown in the attached drawings.
  • the fast and accurate cutting device of any aspect of the invention can easily be inserted in automated production lines which insert parts which are cut from the band of honeycomb material into other, further products. Furthermore, vibrations are easily avoided as much as possible.
  • Figure 1 shows an assembly for expanding and cutting honeycomb material 1.
  • the assembly has an expanding stage 2 which as such is well knows in the art.
  • After expanding the honeycomb material it is wetted and guided through drying ovens 3 in order to consolidate the expanded form of the honeycomb material.
  • the expanded and dried endless honeycomb material is guided past a cutting device 4 which cuts in general in longitudinal direction of the expanded honeycomb material.
  • the expanded honeycomb material is transported to a cutting device 5 for cutting off a segment of honeycomb material from the substantially endless band of honeycomb material.
  • FIG. 1A shows a top view of the expansion of honeycomb material according to this embodiment.
  • the unexpanded material is produced from endless paper material, usually unwound from a roll of paper (kraft paper, for instance) of about 2-5 meters wide. On the surface of this paper material, longitudinal stripes of glue are applied, and several of these layer are stacked. From this (endless) band of stacked and via stripes of glue adhered paper material strips are cut, with the cut in transverse direction. The width of the strips is the height of the honeycomb material. These strips are also glued together to form an endless band of unexpanded honeycomb material.
  • the cutting device 5 is constructed to cut the honeycomb material (substantially) perpendicular to the plane of the paper, i.e. perpendicular to the plane of the cell of the honeycomb material.
  • FIG 2 is a detailed front view of the cutting device 5 of figure 1 .
  • the cutting device 5 has a frame 6 onto which a blade or knife and actuator are mounted, and the device provides a transport surface onto which the endless band of honeycomb material rests while it passes the cutting device. The transport direction is out of the paper. In this view towards the reader.
  • the cutting device itself has a vertical frame part 7 onto which the knife and driving means of the knife are mounted.
  • the cutting device 5 has a blade 11 which is mounted onto mounting support members 8 and 10 and a central mounting element 9 onto which also the mounting elements 8 and 10 are mounted.
  • the cutting device further has a driving motor 12 which in thin embodiment is a linear electric drive.
  • the Tecnotion TB 30 N linear motor is used. It uses two TB288 and one TB192 magnet plates.
  • a position determining device is used. This may be an encoder In the above embodiment, an analog Hall sensor, also obtainable via Technotion, was used.
  • the linear electric drive has one part fixedly mounted on the vertical frame 7 and a driven part which is mounted to support elements 8 and 9 for driving the blade and support elements 8, 10 and 9 up and down in the vertical direction, in a reciprocating way.
  • the cutting device further has stops 13, 13', 14 and 14' which provide a stop for the blade and supporting elements.
  • Figure 3 shows the view of figure 2 with some parts of the cutting device 5 removed in order to have a better view of its interior.
  • Both ends of the support member 8 and 10 have rail elements 19 which are slidingly mounted on rails 18. Furthermore, in this view clearly the driven part 17 of the driving linear motor 12 is visible. In mounted condition, this driven part 17 is fixedly mounted to the central support part 9 which supports the blade 11. In this view, stops 13, 13', 14, 14' are clearly visible. The vertical position of the stops can be adjusted easily. Furthermore, in this view, the rail 15 is visible and guides 16 which run on the rails 15. In mounted condition, the guides 16 are fixedly amounted to the central support part 9 ( fig. 2 ) which supports the blade 11.
  • FIG 4 a cross section of figure 2 is shown.
  • the an upper bar 20 can been seen which, when the blade 11 moves upwards, holds the endless band of the honeycomb material from moving upwards.
  • the transport direction of the honeycomb material is indicated with an arrow A and the cutting direction of blade 11 is indicated with an arrow B.
  • unexpanded honeycomb material in an endless band enters the expanding assembly of figure 1 at the position of the arrow, in the direction of the arrow.
  • the honeycomb material is expanded in a way which is known to the man skilled in the art.
  • a small amount of moisture is sprayed on the expanded honeycomb material and the honeycomb material is subsequently transported, via transport rolls 21 which are indicated before and between the drying ovens 3, through the drying ovens 3.
  • the drying ovens 3 the moisturized and expanded honeycomb material is dried again in order to make the expanded shape permanent.
  • the endless band of honeycomb material now encounters a longitudinal cutting device 4.
  • the longitudinal cutting device 4 has two circle saw cutting blade 4 which rotate and are fixedly mounted but can be mounted at different transfers positions. These blades provides cuts in longitudinal direction the honeycomb material in endless smaller bands of honeycomb material.
  • the endless band of honeycomb material passes a final transport roll 22 and from this transport roll 22 it encounters the cutting device 5 of the current invention.
  • This cutting device 5 has a blade 11 which reciprocates in with respect to the band of honeycomb material, in vertical direction in order to make a cut in the transfers direction of the band of material. Coupled to the cutting device is a control unit 23 which also controls the speed of the transport rolls 22, dependent on the position of the blade 11..
  • the controller is coupled to the movement of the blade.
  • the controller 23 slows down the transport speed of the transport roll 22, and in this way provides that the endless band of honeycomb material has a speed which is, with respect to the speed of the blade 11, almost zero. In this way, it is possible to provide a clean, transfers cut through the honeycomb material. Furthermore, the honeycomb material is not damaged.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Claims (11)

  1. Dispositif de découpe (5) pour découper un segment de matériau en nid d'abeille, dans lequel le dispositif de découpe (5) est approprié pour découper un segment de matériau en nid d'abeille expansé à partir d'une bande sensiblement sans fin de matériau en nid d'abeille expansé, comprenant un dispositif de transport pour transporter le matériau en nid d'abeille en bande dans une direction de transport, une lame (11) montée en aval du dispositif de transport sur un châssis (6, 7) au-dessous d'un plan de transport de la bande de matériau en nid d'abeille, et positionnée pour découper le segment du matériau en nid d'abeille en bande, et un actionneur (12) pour entraîner la lame de découpe dans une direction en amont, dans lequel ledit dispositif de découpe comprend en outre un dispositif de commande (23) couplé de manière opérationnelle à l'actionneur et au dispositif d'entraînement pour régler mutuellement la vitesse de transport du dispositif de transport et le mouvement de va-et-vient de la lame, et dans lequel ledit dispositif de commande est couplé de manière opérationnelle pour ralentir la vitesse du dispositif de transport lorsque la lame découpe le matériau en nid d'abeille, lequel ralentissement se traduit conjointement par une petite flexion du matériau en nid d'abeille.
  2. Dispositif de découpe selon la revendication 1, dans lequel ladite lame est positionnée pour découper la bande de matériau en nid d'abeille dans la direction sensiblement transversale, et dans lequel ledit actionneur entraîne ladite lame vers le haut et vers le bas, pour effectuer un mouvement de va-et-vient.
  3. Dispositif de découpe selon la revendication 1 ou 2, dans lequel ledit dispositif de transport comprend des rouleaux (22) et un dispositif d'entraînement pour entraîner les rouleaux.
  4. Dispositif de découpe selon l'une quelconque des revendications précédentes, dans lequel ledit actionneur comprend un moteur linéaire.
  5. Dispositif de découpe selon la revendication 4, dans lequel ledit moteur linéaire est monté avec sa direction de mouvement sensiblement perpendiculaire au plan du matériau en nid d'abeille.
  6. Dispositif de découpe selon la revendication 1, dans lequel ledit châssis permet de monter ladite lame au niveau de ses extrémités et le long du bord à l'opposé du bord de découpe.
  7. Dispositif de découpe selon la revendication 1, comprenant en outre un dispositif de transport monté en aval du premier dispositif de transport et de la lame.
  8. Dispositif de découpe selon l'une quelconque des revendications précédentes, dans lequel ladite lame est montée pour découper dans la direction longitudinale des alvéoles.
  9. Dispositif de découpe selon l'une quelconque des revendications précédentes, comprenant :
    des amortisseurs (13, 13', 14, 14') pour solliciter le mouvement de la lame de découpe entre deux positions d'extrémité.
  10. Dispositif de découpe selon la revendication 1, dans lequel la lame est une lame de découpe fine.
  11. Méthode pour découper un segment de matériau en nid d'abeille expansé à partir d'une bande sensiblement sans fin de matériau en nid d'abeille expansé, comprenant les étapes consistant à :
    amener la bande de matériau en nid d'abeille expansé dans une direction de transport jusqu'à un dispositif de découpe (5) ayant une lame (11) ;
    entraîner ladite lame pour effectuer un mouvement de va-et-vient sensiblement perpendiculaire à la direction de transport dans un plan horizontal par rapport à la direction de transport, et
    ralentir la vitesse d'alimentation du matériau en nid d'abeille expansé lorsque la lame découpe le matériau en nid d'abeille, lequel ralentissement se traduit conjointement par une petite flexion du matériau en nid d'abeille.
EP08163601A 2008-09-03 2008-09-03 Dispositif de découpe et méthode de découpe Not-in-force EP2161112B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL08163601T PL2161112T3 (pl) 2008-09-03 2008-09-03 Tnące urządzenie i sposób
EP08163601A EP2161112B1 (fr) 2008-09-03 2008-09-03 Dispositif de découpe et méthode de découpe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08163601A EP2161112B1 (fr) 2008-09-03 2008-09-03 Dispositif de découpe et méthode de découpe

Publications (2)

Publication Number Publication Date
EP2161112A1 EP2161112A1 (fr) 2010-03-10
EP2161112B1 true EP2161112B1 (fr) 2012-05-16

Family

ID=40289363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08163601A Not-in-force EP2161112B1 (fr) 2008-09-03 2008-09-03 Dispositif de découpe et méthode de découpe

Country Status (2)

Country Link
EP (1) EP2161112B1 (fr)
PL (1) PL2161112T3 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE629966A (fr) 1962-03-22
CA1078296A (fr) * 1975-02-19 1980-05-27 Robert C. Geschwender Methode de production de matiere alveolaire et materiel utilise a cette fin
GB2107638B (en) * 1981-10-22 1985-11-13 Secr Defence Cutting apparatus for extruded materials
US4488466A (en) * 1982-09-07 1984-12-18 Seal Tech Corp. Apparatus for cutting sheet material
US4620467A (en) * 1984-10-01 1986-11-04 Hobart Corporation Film cutter
US6858109B2 (en) * 2003-03-13 2005-02-22 George T. Wroblewski, Sr. Segment cut honeycomb core machine

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Publication number Publication date
EP2161112A1 (fr) 2010-03-10
PL2161112T3 (pl) 2012-10-31

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