EP2802439B1 - Procédé destiné à créer une aide au détachement d'un film appliqué sur une tôle - Google Patents

Procédé destiné à créer une aide au détachement d'un film appliqué sur une tôle Download PDF

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Publication number
EP2802439B1
EP2802439B1 EP13700532.8A EP13700532A EP2802439B1 EP 2802439 B1 EP2802439 B1 EP 2802439B1 EP 13700532 A EP13700532 A EP 13700532A EP 2802439 B1 EP2802439 B1 EP 2802439B1
Authority
EP
European Patent Office
Prior art keywords
foil
sheet metal
acute
film
separating cut
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP13700532.8A
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German (de)
English (en)
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EP2802439A1 (fr
Inventor
Markus Wilhelm
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.)
Trumpf Werkzeugmaschinen SE and Co KG
Original Assignee
Trumpf Werkzeugmaschinen SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Trumpf Werkzeugmaschinen SE and Co KG filed Critical Trumpf Werkzeugmaschinen SE and Co KG
Publication of EP2802439A1 publication Critical patent/EP2802439A1/fr
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Publication of EP2802439B1 publication Critical patent/EP2802439B1/fr
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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
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/12—Slitting marginal portions of the work, i.e. forming cuts, without removal of material, at an angle, e.g. a right angle, to the edge of the work
    • 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
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/08—Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising
    • B26D3/085—On sheet material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12361—All metal or with adjacent metals having aperture or cut
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/889—Tool with either work holder or means to hold work supply

Definitions

  • the present invention relates to a method for producing a film separation cut on a foil of a foiled sheet by means of a film separating tool which is moved with a tool tip resting on the sheet metal along a predetermined trajectory and mechanically generates the film separation cut by displacing sheet material, as well as a with this Process processed foiled sheet metal.
  • Such a film separation process for foiled sheets has become known, for example, by the so-called "TRUMPF film separating tool".
  • Laminated sheets are provided with a protective foil which protects the sheet from damage during processing, storage and handling and is usually only removed immediately before further processing of the sheet.
  • the known TRUMPF film separating tool has a ball rotatably mounted in a stamp, which is moved with a rolling movement on a foiled sheet and thereby separates the film without leaving scratches or marks on the sheet. More precisely, when machining the ball on the sheet surface, wherein the ball tip penetrates the film and then rolls on the sheet during the process on the sheet. In this way, the film is cut easily and quickly along the worn web.
  • the foil release tool can be used to separate individual fields or segments on the foil, which can then be removed manually from the plate.
  • the separation gap created by the film dividing tool is inherently very narrow and therefore does not facilitate manual detachment of the film or of a film segment.
  • Another film separating tool is from the DE 20 2005 011 908 U1 known.
  • This object is achieved in that for the formation of at least one detached from the sheet foil corner of the film cut has at least one acute-angled prong.
  • a special separating cut contour with one or more acute-angled cutting teeth is separated with the film separating tool.
  • the foil is thrown up at the reversal point of the processing direction and thereby the corresponding acute-angled foil corner is detached, which facilitates the manual removal of the foil or a foil segment ,
  • the detached foil corner thus represents a removal aid.
  • the tool tip is formed rotationally symmetrical and in particular formed by a rotatably mounted ball which is moved with a rolling movement on the sheet and thereby cuts through the film.
  • the tool tip can also be formed by the needle tip of a pointed needle.
  • the film cutting section has a plurality of acute-angled prongs, which are lined up in a suitable sequence.
  • acute-angled prongs mean many detached foil corners, which are available as a removal aid.
  • co-acute pointed teeth these can be connected to each other via curved separating cut sections, so that uncontrolled tearing of the film is prevented during the subsequent removal of the film or the film segment.
  • the film-cutting section has at least one zigzag section with a plurality of oppositely directed, pointed-angled serrations. If the points are short and close enough to each other, the film lifts on both sides of the two opposing teeth rows, so that a continuous separation gap is formed, which is wider than the actual film cut.
  • the film separation section can either be formed at a distance from the outer edges of the film or at the segment edges of a film segment cut off on the film, or extend on one or both sides in each case to an outer or segment edge. In the latter case, it is advantageous if the film separation cut Asymptotically or at an acute angle in the outer or segment edge passes to prevent the uncontrolled tearing of the film or the film segment when peeled off.
  • the trepanning section cutting the acute-angled tine can be carried out either as a continuous single cut, ie without lifting the film tapping tool from the sheet, or by two discontinuous cuts, of which the last cut cut in the cut nip of the first cut either starts or at least partially runs.
  • the invention also relates, in a further aspect, to a foiled sheet processed by this method and having at least one film-separating cut, wherein, according to the invention, the film-cutting cut has at least one pointed-angled tine and the associated acute-angled foil corner is detached from the metal sheet.
  • the invention further relates to a sheet metal working machine according to claim 18, a computer program product according to claim 19 and a CAD / CAM system for creating an NC program for the sheet metal working machine.
  • Fig. 2 shows a known film-separating tool 20 for foiled sheets 1, ie for sheets 2, which are provided with a film 3 for protection against damage.
  • the film separating tool 20 is used to produce a film separation cut 24 on the film 3 of the foiled sheet 1, without leaving scratches or marks on the sheet 2.
  • the film separating tool 20 has a blunt tool tip in the form of a ball 22 rotatably mounted in a punch 21 , which is moved with a rolling movement on the foiled sheet 1, thereby cutting the film 3. More specifically, the ball 22 penetrates the film 3 and, when the film separating tool 20 is moved over the foiled sheet 1 in the direction A , rolls on the sheet 2, thereby mechanically producing the film separation cut 24 by displacing sheet material along the worn web.
  • Fig. 3 Figure 11 shows another known film-separating tool ("foil-tearing tool") in the form of a tapered needle 30.
  • the needle 30 is moved on the foiled sheet 1, thereby severing the film 3. More specifically, the needle tip 31 penetrates the film 3 and generates when the needle 30 is moved over the foiled sheet 2 in the direction A, the film separation section 32 mechanically by displacing sheet material along the worn web. If the needle point 31 is made of a softer material than the plate, eg of brass, there are no scratches on the Sheet 2. If 2 scratches are not relevant to the sheet, a needle tip 31 made of a harder material than the sheet can be used.
  • Fig. 1 shows a foiled sheet 1, in the film 3 six square film segments 5a-5f are separated by means of a self-contained separating gap 6 . If, for example, welding work is to be carried out at certain processing points on sheet metal 1, then the respective film segment need only be removed manually at these processing points. However, at a ball diameter of less than 1 mm, the separation gap 6 formed with the film dividing tool 20 is very narrow (smaller than 0.5 mm) and thus does not facilitate manual peeling of a film segment.
  • the film-separating cut 8 a has three indentations 9 a in the same direction at an acute angle, which are connected to each other via arch-shaped separating cut sections 10 . Overall, therefore, three detached foil corners 7a are present.
  • the film-separating cut 8b has two pointed angles 9b in opposite directions, which are each connected to one another via an S-shaped separating cut section 11 . Overall, therefore, two detached foil corners 7b are present.
  • the film-separating section 8c has a zigzag section 12 with a plurality of mutually juxtaposed, oppositely opposing acute-angled serrations 9c, whereby a plurality of detached foil corners 7c are formed.
  • the film-separating section 8b has a single acute-angled point 9d between two S-shaped curve sections 11.
  • the film separation section 8d is spaced on both sides of the segment edge, that is, completely formed within the film segment 5d.
  • the film separation section 8e has a zigzag section 12, the serrations 9e are so acute and are arranged side by side, that between the detached foil corners 7e of the two opposing teeth rows 13a, 13b, a continuous separation gap 14 is present, the wider than the Folientrennrough 8e of the film separating tool 20 is.
  • the detached on both sides of the separation gap 14 foil corners 7e each form a film edge, which can be used as a dressing aid.
  • two separate film cut sections 8f are provided, each having an acute-angled tine 9f and an S-shaped separating cut section 11 extending to the edge of the segment. Overall, therefore, two detached foil corners 7f are present.
  • FIG. 4 A numerically controlled sheet metal working machine 40 is shown, with which the above-described cuts with acute-angled teeth on a foiled sheet 1 can be performed.
  • This sheet metal working machine 40 comprises a workpiece support 41 for laying a foiled sheet 1, a workpiece movement device 42 for moving the foil 1 resting on the workpiece support 41 in the x and y direction, a tool holder 43 which can be moved in the z direction and which holds the film separation tool 20, 30 and one only schematically indicated NC machine control 44, which is programmed by means of an NC program, the actuators of the workpiece moving device 42 and the tool holder 43 to execute the above-described cuts with acute-angled spikes on the foiled sheet 1 to control.
  • Fig. 5 shows a further foiled sheet 1, in the film 3 four square film segments 5g-5j are each separated by means of a self-contained separating gap 6.
  • each of the foil segments 5g-5j has at least one foil corner 7g-7j detached from the sheet 2, which can be grasped manually.
  • an additional film separation section 8g-8j which has an acute-angled point 9g-9j with an acute angle of ⁇ 90 °, preferably of ⁇ 45 °, is carried out within the film segments 5g-5j with the film dividing tool 20. having.
  • the foil 3 is thrown open.
  • the associated acute-angled foil corner 7g-7j separates from the plate 2 and stands up as a removal aid.
  • the film separation section 8g has an acute-angled tine 9g, which are formed by two mutually facing arcuate separating cut sections 8g 1 , 8g 2 which are pointed or asymptotic to one another and meet in the point of the tine.
  • the two separating cut sections 8g 1 , 8g 2 can be cut as a continuous cut, ie without lifting off the film separating tool 20, wherein at the point of reversal of the processing direction, ie at the point of the serration, the film 3 comes up and thereby the acute-angled foil corner 7g detached from the plate 2 and protrudes upwards as a removal aid.
  • the two separating cut sections 8d 1 , 8g 2 may also be two non-contiguous cuts, with the last cut (eg the separating cut section 8g 2 ) beginning in the kerf of the first cutting cut section 8g 1 and extending away from the serrated tip in the cutting direction 15 .
  • the sheet separation section an acute-angled prong 9h which is formed by two facing arcuate separation cut portions 8h 1, 8h 2, which touch each other at an intersection point and doctorumblen each case on both sides of this point of intersection.
  • the two separating cut sections 8h 1 , 8h 2 are two discontinuous cuts, the last one executed section (eg the separating cut section 8h 2 ) from the cutting direction 15, that is, from the side of the intersection point to be detached from the foil corner 7h comes and partially runs in the kerf of the first cut section 8h 1 .
  • the film dividing section 8i of the film segment 5i differs only in that here only the one separating cut section 8i 1 is arcuate and the other separating cut section 8h 2 is straight.
  • the film dividing section 8j of the film segment 5j differs only in that here the straight dividing section is formed by the dividing nip 6 and the arcuate dividing section 8j begins in the dividing nip 6 and is then carried out in the direction 15 to peel the film corner 7j.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Materials For Medical Uses (AREA)

Claims (16)

  1. Procédé pour produire une coupe (8a-8j) de séparation de pellicule sur une pellicule (3) d'une tôle pelliculée (1) au moyen d'un outil (20 ; 30) de séparation de pellicule qui est déplacé le long d'une trajectoire prédéterminée en reposant sur la tôle (2) par une pointe d'outil (22 ; 31) et qui produit alors mécaniquement la coupe (8a-8j) de séparation de pellicule en chassant le matériau de la pellicule,
    caractérisé en ce que, afin de former au moins un coin de pellicule (7a-7j) détaché de la tôle (2), la coupe (8a-8j) de séparation de pellicule présente au moins une dent pointue (9a-9j).
  2. Procédé selon la revendication 1, caractérisé en ce que la pointe d'outil est réalisée à symétrie de révolution, en particulier est formée par une bille (22) montée à rotation qui est déplacée par un mouvement de roulage sur la tôle (2), ou par la pointe d'aiguille (31) d'une aiguille (30) se terminant en pointe.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'outil (20) de séparation de pellicule roule sur la tôle (2).
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que la coupe (8a-8c, 8e) de séparation de pellicule présente plusieurs dents pointues (9a-9c, 9e).
  5. Procédé selon la revendication 4, caractérisé en ce que les dents pointues (9a, 9b), en particulier de même sens, sont respectivement reliées entre elles par l'intermédiaire de parties courbes (10, 11) de coupe de séparation.
  6. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que la coupe (8c, 8e) de séparation de pellicule présente au moins une partie en zigzag (12) avec plusieurs dents pointues (9c, 9e) juxtaposées de même sens, sachant notamment que les dents (9e) de la partie en zigzag (12) au moins unique sont juxtaposées d'une manière tellement courte et proche qu'une fente de séparation continue (14), qui est plus large que la coupe (8e) de séparation de pellicule de l'outil (20) de séparation de pellicule, est formée entre les coins de pellicule détachés (7e) des deux rangées de dents (13a, 13b) de même sens.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que la coupe (8a-8c, 8e, 8f, 8j) de séparation de pellicule s'étend respectivement d'un ou des deux côtés jusqu'à un bord extérieur de la pellicule (3) ou jusqu'à un bord de segment d'un segment de pellicule (5a-5c, 5e, 5f, 5j) détaché à l'intérieur de la pellicule (3), sachant notamment que la coupe (8a-8c, 8e, 8f, 8j) de séparation de pellicule se raccorde de manière asymptotique ou sous un angle aigu au bord extérieur ou de segment.
  8. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que la coupe (8d, 8g-8i) de séparation de pellicule est formée à distance des bords extérieurs de la pellicule (3) ou des bords de segment d'un segment de pellicule (5d, 5g-5i) détaché sur la pellicule (3).
  9. Procédé selon l'une des revendications précédentes, caractérisé en ce que la coupe (8a-8g, 8i) de séparation de pellicule coupant la dent pointue (9a-9g, 9i) est réalisée sous la forme d'une unique coupe ininterrompue.
  10. Procédé selon l'une des revendications 1 à 8, caractérisé en ce que la coupe (8g-8i) de séparation de pellicule coupant la dent pointue (9g-9i) est réalisée par deux coupes non contiguës (8g1, 8g2 ; 8h1, 8h2 ; 8i1, 8i2), sachant que la coupe réalisée en dernier, soit débute dans l'emprise de coupe de la coupe réalisée en premier, soit s'étend au moins partiellement à l'intérieur de celle-ci.
  11. Tôle pelliculée (1) avec au moins une coupe (8a-8j) de séparation de pellicule, caractérisée en ce que la coupe (8a-8j) de séparation de pellicule présente au moins une dent pointue (9a-9j) et le coin de pellicule pointu associé (7a-7j) est détaché de la tôle (2), sachant notamment que la coupe (8a-8c, 8e) de séparation de pellicule présente plusieurs dents pointues (9a-9c, 9e) et que les coins de pellicules pointus associés (7a-7c, 7e) sont détachés de la tôle (2).
  12. Tôle pelliculée selon la revendication 11, caractérisée en ce que la coupe (8c, 8e) de séparation de pellicule présente au moins une partie en zigzag (12) avec plusieurs dents pointues (9c, 9e) juxtaposées alternativement de même sens et les coins de pellicule pointus associés (7c, 7e) sont détachés de la tôle (2), sachant notamment qu'une fente de séparation continue (14), qui est plus large que la coupe (8e) de séparation de pellicule, est présente entre les coins de pellicule détachés (7e) des deux rangées de dents (13a, 13b) de même sens.
  13. Tôle pelliculée selon la revendication 11 ou 12, caractérisée en ce que la coupe (8a-8c, 8e, 8f, 8j) de séparation de pellicule s'étend respectivement d'un ou des deux côtés jusqu'à un bord extérieur de la pellicule (3) ou jusqu'à un bord de segment d'un segment de pellicule (5a-5c, 5e, 5f, 5j) détaché sur la pellicule (3), sachant notamment que la coupe (8a-8c, 8e, 8j) de séparation de pellicule se raccorde de manière asymptotique ou sous un angle aigu au bord extérieur ou de segment.
  14. Tôle pelliculée selon la revendication 11 ou 12, caractérisée en ce que la coupe (8d, 8g-8i) de séparation de pellicule est distante des bords extérieurs de la pellicule (3) ou des bords de segment d'un segment de pellicule (5d, 5g-5i) détaché sur la pellicule (3).
  15. Machine (40) d'usinage de tôles avec un porte-pièce (41) pour une tôle pelliculée (1) à usiner et avec un porte-outil (42) recevant un outil (20, 30) de séparation de pellicule, sachant que la tôle pelliculée posée (1) et le porte-outil (42) peuvent être déplacés l'un par rapport à l'autre dans les directions x, y et z, ainsi qu'avec une commande (43) qui est programmée pour exécuter le procédé selon l'une des revendications 1 à 10.
  16. Produit-programme informatique, en particulier programme de commande numérique, qui présente des moyens de codage qui sont adaptés pour exécuter toutes les étapes du procédé selon l'une des revendications 1 à 10, lorsque le programme s'exécute sur une commande (43) d'une machine (40) d'usinage de tôles selon la revendication 15.
EP13700532.8A 2012-01-10 2013-01-09 Procédé destiné à créer une aide au détachement d'un film appliqué sur une tôle Active EP2802439B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012200240A DE102012200240A1 (de) 2012-01-10 2012-01-10 Verfahren zum Erzeugen einer Abziehhilfe an einer Folie eines folierten Blechs
PCT/EP2013/050292 WO2013104662A1 (fr) 2012-01-10 2013-01-09 Procédé permettant de faciliter le détachement sur une feuille d'une tôle en feuille

Publications (2)

Publication Number Publication Date
EP2802439A1 EP2802439A1 (fr) 2014-11-19
EP2802439B1 true EP2802439B1 (fr) 2016-07-27

Family

ID=47563475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13700532.8A Active EP2802439B1 (fr) 2012-01-10 2013-01-09 Procédé destiné à créer une aide au détachement d'un film appliqué sur une tôle

Country Status (6)

Country Link
US (1) US10131068B2 (fr)
EP (1) EP2802439B1 (fr)
CN (1) CN104039516B (fr)
DE (1) DE102012200240A1 (fr)
PL (1) PL2802439T3 (fr)
WO (1) WO2013104662A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111231490B (zh) * 2020-01-08 2022-04-15 上海赛摩电气有限公司 一种覆膜板自动撕膜装置及方法

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DE3315271C1 (de) * 1983-04-27 1984-10-31 Lohmann Gmbh & Co Kg, 5450 Neuwied Laminatabschnitte mit Abdeckung und Abziehhilfe hierfuer
JPH04257367A (ja) * 1991-02-06 1992-09-11 Janome Sewing Mach Co Ltd マークカッティング装置およびその制御方法
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EP1484251B1 (fr) * 2002-02-08 2007-09-05 Big Drum Iberica, S.A. Emballage laminaire pour cornets de glace
DE202005011908U1 (de) * 2005-07-29 2005-10-13 Pass Stanztechnik Ag Rollenwerkzeug zum Schneiden einer auf einem Werkstück aufgebrachten Folie sowie Schneidvorrichtung mit einem derartigen Rollenwerkzeug
DE102006003719A1 (de) * 2005-07-29 2007-02-01 Pass Stanztechnik Ag Rollenwerkzeug zum Schneiden einer auf einem Werkstück aufgebrachten Folie sowie Schneidvorrichtung mit einem derartigen Rollenwerkzeug
RU2404288C2 (ru) * 2006-04-05 2010-11-20 Ихи Корпорейшн Покрытие и способ формирования покрытия
DE102007008554A1 (de) * 2007-02-21 2008-08-28 Welser Profile Ag Verfahren und Vorrichtung zum Herstellen von Profilen
ATE482050T1 (de) * 2007-06-30 2010-10-15 Trumpf Werkzeugmaschinen Gmbh Maschine zum bearbeiten von werkstücken und verfahren zum maschinellen bearbeiten von werkstücken
JP2012513305A (ja) * 2008-12-23 2012-06-14 トレレボルグ ルボレ エービー 多層板構造を部分貫通する切断線を形成する方法
JP2011020224A (ja) * 2009-07-16 2011-02-03 Fujifilm Corp 積層体の切断方法

Also Published As

Publication number Publication date
PL2802439T3 (pl) 2017-01-31
DE102012200240A1 (de) 2013-07-11
EP2802439A1 (fr) 2014-11-19
US20140322556A1 (en) 2014-10-30
CN104039516B (zh) 2016-11-23
CN104039516A (zh) 2014-09-10
WO2013104662A1 (fr) 2013-07-18
US10131068B2 (en) 2018-11-20

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