EP0316587B1 - Découpe curviligne - Google Patents

Découpe curviligne Download PDF

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Publication number
EP0316587B1
EP0316587B1 EP88117201A EP88117201A EP0316587B1 EP 0316587 B1 EP0316587 B1 EP 0316587B1 EP 88117201 A EP88117201 A EP 88117201A EP 88117201 A EP88117201 A EP 88117201A EP 0316587 B1 EP0316587 B1 EP 0316587B1
Authority
EP
European Patent Office
Prior art keywords
cutting
pallet
cut
web
cutting region
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.)
Expired - Lifetime
Application number
EP88117201A
Other languages
German (de)
English (en)
Other versions
EP0316587A3 (fr
EP0316587A2 (fr
Inventor
Wolfgang Bruder
Klaus Biervert
Jürgen Meybrink
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.)
Duerkopp Adler AG
Original Assignee
Duerkopp Adler AG
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 Duerkopp Adler AG filed Critical Duerkopp Adler AG
Publication of EP0316587A2 publication Critical patent/EP0316587A2/fr
Publication of EP0316587A3 publication Critical patent/EP0316587A3/fr
Application granted granted Critical
Publication of EP0316587B1 publication Critical patent/EP0316587B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/3806—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface
    • B26F1/3813—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F2001/3873—Cutting-out; Stamping-out advancing the material stepwise onto the work surface of the cutting machine
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/929—Particular nature of work or product
    • Y10S83/936—Cloth or leather
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/929—Particular nature of work or product
    • Y10S83/936—Cloth or leather
    • Y10S83/937—From continuous or wound supply
    • 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
    • Y10T83/0524—Plural cutting steps
    • Y10T83/0529—Blanking and cutting
    • 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
    • Y10T83/0605—Cut advances across work surface
    • 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
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/463—Work-feed element contacts and moves with work
    • Y10T83/4632—Comprises a work-moving gripper
    • 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
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6579—With means to press work to work-carrier
    • 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
    • Y10T83/896—Rotatable wound package supply
    • Y10T83/902—Plural supply sources

Definitions

  • the invention relates to a method for cutting blanks from webs of material which are moved over a cutting table and which are cut by means of cutting means, the blanks resulting in cross-sectional images which are shorter or longer than the cutting table and are distributed on the web of material such that the contours are strung together without significant waste.
  • the respective layer lengths must be a certain amount of safety (usually 3 to 5 cm) larger than the cut length to be cut out in order to obtain a clean cutting line at the end of each individual contour and also any tolerances when placing the individual ones Layers on the pallets or in the cutting tool setting.
  • a disadvantage of both methods is that the placement of the layers outside the cutting area results in high cycle times and the necessary safety additions require a high waste for each layer, which not only increases the manufacturing costs, but also a greater or lesser amount depending on the type of material used causes high environmental pollution during the necessary waste disposal.
  • DE-B-23 01 736 discloses a device for cutting a flat material, with which a more efficient way of working is possible, but the cutting process to be carried out with this device has the disadvantage that the material web is always fed at the same intervals regardless of the cut to be cut . This results in long cycle times and a large machine length.
  • the invention has for its object to provide a method for cutting blanks from material webs with the low Cycle times can be realized and this also makes it possible to dispense with the safety zone in the individual layers and to create a device for carrying out the method.
  • FIG. 1 shows the cutting device, which essentially consists of the cutting system 2, the upstream laying station 9 and the downstream clearing station 10.
  • the laying station 9 contains the reel changer 1, several pallets P and the fixed clamping bar 5 as well as one or more wagons W1 ... Wn which can be displaced longitudinally over the pallets P and on which the material reels D1 ... Dn can be rotatably attached.
  • the clearing stations 10 are used to remove the cut patterns.
  • the portal 11 of the cutting system 2 is provided with a limit switch, not shown, which responds when a pallet P has moved into the cutting area A and passes this switch.
  • material rolls D are loaded onto the trolleys W in accordance with the desired layer thickness of the material web 7.
  • the material rolls D are rotatably fastened on the carriage W and these are each applied to the roll changer 1 at the point X via the loading and unloading carriage 8, and material on the roll is passed under the tensioning bars 5, 6 (“threaded”).
  • the carriage W (in the drawing) is pushed to the left, so that it assumes the position X1 not previously occupied and the support point X becomes free again.
  • the clamping bar 6 is lowered and the material web 7 is drawn onto the pallet P1 and fixed there.
  • the length of each pallet corresponds at least to the length of the cutting area A.
  • the pallet P1 is transported into the cutting area A, the material being unwound from the rolls D in accordance with the distance traveled.
  • a well-known edge control ensures precise laying.
  • the entire sectional image SB is divided into individual segments S, the length of the individual segments S corresponding to the length of the cutting area A.
  • the individual patterns to be cut out are distributed within the overall sectional image SB taking into account the respective material width b in such a way that only a minimal waste remains. Possible methods for this are known from DE-OS 36 27 110. By using the method described below, it is irrelevant whether the contours to be cut extend beyond the segment boundaries SG or not, ie whether they are inside or still outside the cutting area A.
  • the cutting is started from the direction of the clearing station 10 to the laying station 9. It can be done with a double portal or as shown be worked with a mono cutting system.
  • the path-controlled cutting can be carried out by means of a conventional retraction control, wherein the individual contour data can be stored in the working memory of the control unit (how this can be done is shown in DE-OS 36 27 110 and DE-AS 23 01 736).
  • a contour cut K is made over the full width b of the material web 7, so that it is separated from the rolls.
  • this contour cut K is generally not made in a straight line, but rather — as shown — encloses the patterns lying within the cutting area A, which extend beyond the respective limit of the segment S currently being cut.
  • Patterns M1, M2, M3, which extend over two adjacent segments S, are therefore only partially cut out.
  • the NC-controlled cutting portal 11 moves back to point Z of the partially cut-out pattern, which extends the furthest into cutting area A. This is necessary so that, as will be explained further below, the pallet P2 can be guided under the partially cut contours.
  • the stationary clamping bar 5 is lowered onto the material web 7 still connected to the rollers D, so that it is held on the laying station 9.
  • the subsequent pallet P2 is transported so far forward that it (almost) abuts the pallet P1 located in the cutting area A.
  • the fixation by means of the clamping bar 5 ensures that the material web 7 does not crease when it comes into contact with the pallet 2.
  • Both pallets P1 and P2 are moved to the right at the same speed (in the drawing) until the pallet P2 passes the limit switch (not shown) on the cutting portal 11 and the further transport is interrupted. Now it is ensured that all partially cut out patterns M1 or M2 or M3 have come to rest completely on the pallet P2.
  • the clamping bar 6 is lowered while the fixed clamping bar 5 is released, as a result of which the material web 7 is fixed on the pallet 2, and both pallets P1, P2 are transported further until the pallet P1 has completely reached the clearing station 10 and the pallet P2 in the cutting area A. is.
  • the clamping bar 6 is released and returned to its starting point.
  • the clamping bar 6 can be provided with its own drive, which runs synchronously with the feed device.
  • a suitable control program makes it possible to convert the coordinates (x / y) of the point Z into the current coordinates (xo / y) and the cutting portal 11 can move to the point at which the pattern has already been partially cut, and with the further cutting is continued again from the direction of the clearing station 10 to the laying station 9; at the end again a contour cut K over the complete Width b of the material web 7 is carried out and the process described so far begins again.
  • the cut-out patterns can be removed at the clearing station 10 during the cutting program.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Laser Beam Processing (AREA)
  • Control Of Cutting Processes (AREA)
  • Details Of Cutting Devices (AREA)

Claims (5)

  1. Procédé de découpage automatique de pièces au moins monocouches dans des bandes de matériaux qui sont déplacées sur une table de découpage et découpées grâce à un moyen coupant, les pièces découpées donnant des figures de coupe plus courtes ou plus longues que la table de découpage et réparties sur la bande de matériau de manière telle que les contours soient mis à la suite les uns des autres sans déchet notable,
    caractérisé en ce que
    - la bande de matériau à découper (7) est prélevée d'au moins un rouleau de matériau (D1) disposé en amont de la zone de découpage (A) et fixé sur une palette (P1),
    - la palette (P1) est transportée dans la zone de découpage (A) de l'installation de découpage (2),
    - l'ensemble des formes à découper (SB) est divisé, en tenant compte de la largeur respective (b) de la bande de matériau, en segments (S) correspondant à la longueur de l'installation de découpage (2),
    - la pièce découpée qui déborde dans un segment en aval (S) ou bien n'est découpée que partiellement dans le premier segment (S1) de manière que, après avancée du segment suivant (S2), tout le contour de la pièce soit découpé, ou bien n'est pas découpée dans le premier segment (S1), de sorte que le découpage ne se fait dans un passage qu'après avance du segment (S2) ou du segment partiel en aval,
    - avant l'avance du segment suivant (S2), la bande de matériau (7) est séparée sur toute sa largeur (b), la coupe de séparation comprenant au moins partiellement les contours de la pièce découpée (coupe de contour K),
    - après que la bande de matériau (7) a été placée à poste fixe par rapport à l'installation de découpage, une palette située en aval (P2) est amenée au-dessous de la bande de matériau (7) le plus près possible de la première palette (P1),
    - les deux palettes (P1, P2) sont ensuite transportées vers l'avant simultanément et à la même vitesse jusqu'à ce que la palette en aval (P2) se trouve au-dessous de la coupe de contour (K),
    - la bande de matériau (7) est fixée sur la palette en aval (P2) et la fixation à poste fixe relâchée,
    - les deux palettes (P1, P2) sont transportées vers l'avant jusqu'à ce que le segment à découper suivant (S2) se trouve en totalité dans la zone de découpage (A).
  2. Procédé selon la revendication 1,
       caractérisé en ce que
       une multiplicité de bandes de matériaux (7) sont prélevées l'une après l'autre de plusieurs bandes de matériaux (D1...Dn) disposées en amont de la zone de découpage (A) et fixées sur la palette (P1) avec le nombre de couches souhaité.
  3. Dispositif destiné à la mise en oeuvre du procédé selon les revendications 1 ou 2 comportant au moins une installation de découpage (2) et une station de pose (9) disposée en amont,
       caractérisé en ce que
    - on peut disposer en amont de l'installation de découpage (2), dans la station de pose (9), un nombre de rouleaux de matériaux (D) correspondant au nombre de couches souhaité de la bande de matériau (7);
    - les rouleaux de matériaux (D) doivent être fixés, avec possibilité de tourner, sur des chariots (W) mis en place avec possibilité de se déplacer dans le sens longitudinal,
    - les chariots (W) peuvent être placés sur un changeur de rouleaux (1) comportant des rails (3, 4) et prévu dans la station de pose (9),
    - entre le premier rouleau (D1) ou le premier chariot (W1) et la zone de découpage (A) de l'installation de découpage (2), sont placées deux poutres de serrage (5, 6), sous lesquelles peut être introduit le matériau de chaque rouleau (D), la bande de matériau (7) pouvant être fixée, au moyen de la poutre de serrage (6) transportable dans la zone de découpage (A), sur la palette (P1) disposée en amont de la zone de découpage (A), et
    - la palette (P1) peut coulisser dans la zone de découpage (A), plusieurs palettes (P1, P2...) étant mises en place au-dessous des chariots (W) et chaque palette (P) amenée dans la zone de découpage (A) pouvant être remplacée par une nouvelle palette.
  4. Dispositif selon la revendication 3,
    caractérisé en ce que
       plusieurs palettes (P1, P2...) sont mises en place au-dessous des chariots (W) et chaque palette (P) arrivée dans la zone de découpage (A) peut être remplacée par une nouvelle palette.
  5. Dispositif selon la revendication 3,
    caractérisé en ce que
       le changeur de rouleaux (1) se trouve en liaison active avec au moins un appareil de chargement-déchargement (8) qui peut se déplacer suivant son grand côté.
EP88117201A 1987-11-19 1988-10-15 Découpe curviligne Expired - Lifetime EP0316587B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3739201 1987-11-19
DE3739201A DE3739201C3 (de) 1987-11-19 1987-11-19 Konturschnitt

Publications (3)

Publication Number Publication Date
EP0316587A2 EP0316587A2 (fr) 1989-05-24
EP0316587A3 EP0316587A3 (fr) 1991-08-21
EP0316587B1 true EP0316587B1 (fr) 1996-02-07

Family

ID=6340797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88117201A Expired - Lifetime EP0316587B1 (fr) 1987-11-19 1988-10-15 Découpe curviligne

Country Status (5)

Country Link
US (2) US4972745A (fr)
EP (1) EP0316587B1 (fr)
JP (1) JP2779629B2 (fr)
DD (1) DD283577A5 (fr)
DE (2) DE3739201C3 (fr)

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JP4025779B2 (ja) * 2005-01-14 2007-12-26 独立行政法人 宇宙航空研究開発機構 Ｘ線集光装置
HUE055857T2 (hu) 2015-03-23 2021-12-28 Roll O Matic As Tekercselõ berendezés szalagokhoz
EP3560652B1 (fr) * 2018-04-23 2021-06-23 TRUMPF Werkzeugmaschinen GmbH + Co. KG Procédé de traitement d'un matériau en forme de plaque au moyen d'un faisceau de coupe, et programme de traitement de données
CN108823942B (zh) * 2018-06-25 2020-04-14 拓卡奔马机电科技有限公司 一种裁床自适应废料裁断方法
CN112981914B (zh) * 2021-02-06 2022-11-08 刘广伟 一种口罩熔喷无纺布拨离机
US11618177B1 (en) 2022-04-12 2023-04-04 Bradley W Boesel Orbital knife

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Also Published As

Publication number Publication date
DE3739201A1 (de) 1989-06-01
DE3739201C2 (fr) 1989-09-21
EP0316587A3 (fr) 1991-08-21
DE3854988D1 (de) 1996-03-21
DE3739201C3 (de) 1996-06-13
US5146821A (en) 1992-09-15
US4972745A (en) 1990-11-27
JP2779629B2 (ja) 1998-07-23
DD283577A5 (de) 1990-10-17
JPH01246096A (ja) 1989-10-02
EP0316587A2 (fr) 1989-05-24

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