EP0523327B1 - Dispositif pour enlever des parties découpés, comme des chutes de découpage, d'une feuille contenant des découpages ou similaires - Google Patents

Dispositif pour enlever des parties découpés, comme des chutes de découpage, d'une feuille contenant des découpages ou similaires Download PDF

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Publication number
EP0523327B1
EP0523327B1 EP19920106351 EP92106351A EP0523327B1 EP 0523327 B1 EP0523327 B1 EP 0523327B1 EP 19920106351 EP19920106351 EP 19920106351 EP 92106351 A EP92106351 A EP 92106351A EP 0523327 B1 EP0523327 B1 EP 0523327B1
Authority
EP
European Patent Office
Prior art keywords
tool
narrow side
breaking
tip
vertical
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
EP19920106351
Other languages
German (de)
English (en)
Other versions
EP0523327A1 (fr
Inventor
Rolf Sinn
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.)
Karl Marbach GmbH and Co KG
Original Assignee
Karl Marbach GmbH 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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25905665&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0523327(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Karl Marbach GmbH and Co KG filed Critical Karl Marbach GmbH and Co KG
Publication of EP0523327A1 publication Critical patent/EP0523327A1/fr
Application granted granted Critical
Publication of EP0523327B1 publication Critical patent/EP0523327B1/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
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1818—Means for removing cut-out material or waste by pushing out
    • 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
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/307—Combined with preliminary weakener or with nonbreaking cutter
    • Y10T225/321—Preliminary weakener
    • 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
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/371—Movable breaking tool
    • Y10T225/379—Breaking tool intermediate spaced work supports

Definitions

  • the invention relates to a device for removing stripped parts, such as pieces of waste, from a sheet of material containing blanks or the like.
  • the device has a carrier plate for the sheet of material, in which openings are provided. Each stripping part spans the associated breakthrough. The edge-side contact surfaces of each stripping part are arranged essentially plane or axially symmetrical with respect to the associated opening.
  • a tool holding plate which can be moved vertically towards and away from the carrier plate is provided, on which stripping tools projecting towards the carrier plate are attached, which consist of rectangular pieces of steel strip with vertical and horizontal narrow sides.
  • Each stripping tool is arranged essentially vertically to the assigned stripping part and symmetrically with respect to the contact surfaces of the assigned stripping part.
  • the object on which the invention is based is therefore to design the device of the generic type in such a way that safe and reliable knocking out and removal of the knockout parts is ensured with a simple construction.
  • the stripping tool made of steel strip has at least one tip on the carrier plate side, that the tip is arranged in the middle of one vertical narrow side of the steel stripping tool and that the angle between the vertical narrow side having the tip and that extending from the tip the adjoining horizontal narrow side of the stripping tool made of steel strip, which faces the carrier plate, is 20 ° to 50 ° in its narrow side center plane.
  • This angle is advantageously 25 ° to 40 °.
  • An angle of 30 ° is preferred.
  • the device according to the invention is simple in construction. It only requires the configuration of a tip in the manner according to the invention at the end of a narrow side of a known steel stripping tool. Due to the design of the tip according to the invention, if the break-out part bends when it is pressed into the opening, it cannot slide off, so that scratching and piercing is ensured. As a result, the break-out part is bulged elastically in the opening. After leaving the breakthrough, it spontaneously resumes its original flat shape due to the elastic restoring forces, whereby it is thrown off safely from the tip. There is therefore no need for stripping elements in the carrier plate.
  • the surface extending from the tip to the horizontal narrow side of the stripping tool on the support plate side has the shape of an isosceles triangle, the tip angle of which is 30 ° to 90 °, preferably 60 °.
  • the grinding can be provided so that inclined flanks are formed laterally from this surface up to the height of the horizontal narrow side. However, it is also possible to let the corresponding bevel run along the vertical narrow side, so that it forms a sharp edge starting from the tip.
  • the vertical distance of the tip from the adjacent horizontal narrow side of the steel stripping tool is usually 0.5 to 2.5 mm, preferably 1.5 mm.
  • the stripping tool made of steel strip, which can consist, for example, of a part formed from the steel strip by cutting and bending or by pressing out.
  • a positionally secure attachment with respect to the tool holding plate is ensured if a fixing flange made of steel strip is attached at an angle of 90 ° along a vertical narrow side to the end of the strip steel stripping tool on the tool holder plate side, which can also be produced by correspondingly bending the steel strip.
  • the fixing flange also enables the stripping tool to be held securely in the tool holding plate.
  • the openings to the support surface of the support plate have continuous vertical walls, which greatly simplifies the manufacture of the support plate.
  • a horizontal distance between the vertical narrow side of the stripping tool made of band steel and the associated vertically continuous inner wall of the opening in the order of 2 to 10 times the material thickness has proven to be particularly advantageous . In practice, this is usually 2 to 5 mm.
  • the device shown in Fig. 1 has a horizontal tool holding plate 15 and at a distance from it a horizontally arranged support plate 12, from which a sheet of material 11 made of paper or cardboard is arranged in a fixed position, which previously in a punching and creasing device, not shown, for the production of blanks has been processed, with a break-out part 10 being cut out along its circumference along cut edges 30 and held over small holding points 31, which are shown oversized in FIG. 2.
  • the break-out part 10 is arranged via a continuous vertical opening 25 having opening 13 in the carrier plate 12 so that it rests with bearing surfaces 14 on the side of the holding pieces 31 on the carrier plate 12, but the opening 13 on the other two sides is larger than that Transverse extension of the stripping part 10.
  • a stripping tool 17 made of strip steel is fixed in the tool holding plate 15.
  • the exact position of the stripping tool 17 is fixed in that it has a fixing flange 24 fixed at right angles to it in its section on the tool holder plate side. This positional accuracy is achieved in that the incisions to be provided for fixing the stripping tool 17 in the tool holding plate 15 are usually carried out using laser technology.
  • the stripping tool 17 made of strip steel has vertical narrow sides 18 and horizontal narrow sides 19, with one horizontal narrow side 19 being aligned with the rear of the tool holding plate 15 after assembly.
  • a stop 23 is also attached to the stripping tool 17 and engages with the surface of the tool holding plate 15 facing the carrier plate 12. The stop 23 can be cut and bent of strip steel material of the stripping tool 17 are formed. The stop 23 on the one hand contributes to the precise positioning of the stripping tool 17 and prevents the stripping tool 17 from being pressed through the tool holding plate 15 during operation.
  • each stripping tool has a tip 20 in the middle at the end of the one vertical narrow side 18 of the stripping tool 17 made of strip steel.
  • This tip 20 passes over an inclined surface 21 into the horizontal narrow side 19.
  • the angle ⁇ between the inclined surface 21 and the vertical narrow side 18 in the exemplary embodiment shown is 30 ° projected onto the narrow side center plane 32.
  • the inclined surface 21 has the shape of an isosceles triangle with two equal base angles and an apex angle ⁇ , which in the exemplary embodiment shown is 45 °.
  • the distance between the horizontal narrow side 19 and the tip 20 of the stripping tool 17 made of steel strip is provided with the reference symbol 22 and is 0.5 to 2 times the material thickness.
  • the tip 20 is formed such that oblique flanks extend from the inclined surface 21 to the horizontal narrow side 19 and the vertical narrow side 18. 6 and 7, these flanks are omitted, so that the narrow side 18 is a sharp edge which ends in the tip 20.
  • the stripping tools 17 are designed depending on the stripping part 17 to be stripped so that a symmetrical stripping force is exerted on the stripping part 10, which is also symmetrical with respect to the breakpoints 31.
  • the stripping tool 17 is arranged such that its narrow side center plane 32 (FIG. 7) coincides with the connecting plane of the two opposite stopping points 31 and the distance to these stopping points 31 and to the vertical continuous wall 25 of the associated opening 13 has an equal distance.
  • This distance is designated by 26 in FIG. 8. It is 3 to 10 times the material thickness.
  • the stripping tool 17 shown in FIGS. 8 and 9 has two tips 20, which is also shown in FIGS. 1 to 3, one at the end of the vertical narrow side 18.
  • the tips 20 of the stripping tool 17 drill into the stripping part 10 when it is moved in the direction of the double arrow 16 with its associated tool holding plate 15 toward the carrier plate 12. Due to their design, slipping of the tips 20 is not possible.
  • the breakpoints 31 break and the stripping part 10 bulges downward and is pushed through the opening 13 with its continuously vertical walls 25.
  • the restoring forces cause the break-out part 10 to snap back into its essentially flat starting form, as a result of which the break-out part 10 is thrown off from the tips 20 and below it Influence of gravity falls down.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Processing Of Solid Wastes (AREA)
  • Punching Or Piercing (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Crushing And Pulverization Processes (AREA)

Claims (11)

  1. Dispositif pour l'élimination de pièces de découpe (10), telles que pièces de déchet, d'une feuille de matériau (11) contenant des découpes ou similaires,
    - avec un plateau-support (12) pour la feuille de matériau (11),
    - avec des ouvertures (13) dans le plateau-support (12),
    - chaque pièce de découpe (10) surplombant l'ouverture (13) correspondante et ses faces d'appui (14) du côté des bords étant prévues sensiblement symétriques en plan ou selon un axe par rapport à l'ouverture (13),
    - avec un plateau porte-outil (15) pouvant se déplacer verticalement vers et en s'éloignant du plateau-support (12), et
    - avec des outils de découpe (17) en feuillard d'acier à flancs étroits verticaux et horizontaux (18, 19) placés sur le plateau porte-outil (15) faisant saillie vers le plateau-support (12),
    - chaque outil de découpe (17) étant disposé sensiblement verticalement par rapport à la pièce de découpe (10) correspondante et de manière symétrique par rapport à la surface d'appui (14) de la pièce de découpe (10) correspondante,
    caractérisé en ce que :
    - l'outil de découpe (17) en feuillard d'acier présente, du côté du plateau-support, au moins une pointe (20),
    - la pointe (20) est disposée au milieu d'un flanc étroit vertical (18) de l'outil de découpe (17) en feuillard d'acier, et
    - l'angle (α) entre le flanc étroit vertical (18) présentant la pointe (20) et la face (21) s'étendant de la pointe (20) au flanc étroit horizontal (19) adjacent, orienté vers le plateau-support (12), de l'outil de découpe (17) en feuillard d'acier, dans le plan médian (32) de son flanc étroit est de 20° à 50°.
  2. Dispositif suivant la revendication 1, caractérisé en ce que l'angle (α) est de 25° à 40°.
  3. Dispositif suivant la revendication 2 caractérisé en ce que l'angle (α) est de 30°.
  4. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que la face (21) s'étendant de la pointe (20) au flanc étroit horizontal (19), du côté du plateau-support, de l'outil de découpe (17) en feuillard d'acier, a la forme d'un triangle isocèle dont l'angle au sommet (β) est de 30° à 90°.
  5. Dispositif suivant la revendication 4, caractérisé en ce que l'angle au sommet (β) est de 60°.
  6. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que la distance verticale (22) entre la pointe (20) et le flanc étroit horizontal (19) adjacent de l'outil de découpe (17) en feuillard d'acier est de 0,5 à 2 fois l'épaisseur du matériau.
  7. Dispositif suivant la revendication 6, caractérisé en ce que la distance verticale (22) entre la pointe (20) et le flanc étroit horizontal (19), du côté du plateau-support, de l'outil de découpe (17) en feuillard d'acier est de 1 à 6 fois l'épaisseur du matériau.
  8. Dispositif suivant l'une des revendications précédentes, caractérisé par une butée (23) fixée sur l'outil de découpe (17) en feuillard d'acier, venant en prise avec le plateau porte-outil (15).
  9. Dispositif suivant l'une des revendications précédentes, caractérisé par une bride de fixation (24) en feuillard d'acier placée à l'extrémité, du côté du plateau porte-outil, de l'outil de découpe (17) en feuillard d'acier, sur un flanc étroit vertical (18), suivant un angle de 90°.
  10. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que l'ouverture (13) de la surface d'appui (14) du plateau-support (12) présente des parois entièrement verticales (25).
  11. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que la distance horizontale (26) entre le flanc étroit vertical (18) de l'outil de découpe (17) en feuillard d'acier présentant la pointe (20) et la paroi (25) de l'ouverture (13) correspondante est de 2 à 10 fois l'épaisseur du matériau.
EP19920106351 1991-07-19 1992-04-13 Dispositif pour enlever des parties découpés, comme des chutes de découpage, d'une feuille contenant des découpages ou similaires Expired - Lifetime EP0523327B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19914124098 DE4124098C2 (de) 1991-07-19 1991-07-19 Vorrichtung zum Entfernen von Ausbrechteilen, wie Abfallstücken, aus einem Zuschnitte oder dergleichen enthaltenden Werkstoffbogen
DE4124098 1991-07-19
US08/129,981 US5443195A (en) 1991-07-19 1993-09-30 Device for removing knockouts, such as scrap, from a sheet of material containing blanks or similar

Publications (2)

Publication Number Publication Date
EP0523327A1 EP0523327A1 (fr) 1993-01-20
EP0523327B1 true EP0523327B1 (fr) 1995-07-19

Family

ID=25905665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920106351 Expired - Lifetime EP0523327B1 (fr) 1991-07-19 1992-04-13 Dispositif pour enlever des parties découpés, comme des chutes de découpage, d'une feuille contenant des découpages ou similaires

Country Status (7)

Country Link
US (1) US5443195A (fr)
EP (1) EP0523327B1 (fr)
AT (1) ATE125187T1 (fr)
DE (3) DE4124098C2 (fr)
DK (1) DK0523327T3 (fr)
ES (1) ES2075974T3 (fr)
FI (1) FI98135C (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69330244T2 (de) * 1992-12-07 2001-09-06 Fuji Photo Film Co., Ltd. Perforator für Metallplatten
ES2072199B1 (es) * 1993-06-21 1998-07-01 Salpe S A Dispositivo perfeccionado para la extraccion de recortes en maquinas cortadoras de bandas de papel o carton.
GB9509255D0 (en) * 1995-05-05 1995-06-28 Linpac Containers Int Waste removal device
FR2745220B1 (fr) * 1996-02-22 1998-04-30 Raveleau Yvon Dispositif pour eliminer des morceaux separes
DE19623330C1 (de) * 1996-06-12 1997-11-27 Lemo Maschb Gmbh Vorrichtung zum Ausstanzen und Entfernen eines Abfallbutzens von zu einem Packen zusammengefaßter Tragetaschen oder Beuteln aus Kunststoffolie, insbesondere im Zuge der Herstellung von Knotenbeuteln
DE19648952C1 (de) * 1996-11-26 1998-04-30 Rowapack Gmbh Vorrichtung zum Ausbrechen und Entfernen von Abfallstanzteilen aus Nutzen oder Werkstoffbögen, insbesondere für Flachbettstanz- und/oder Prägeautomaten
DE29700517U1 (de) * 1997-01-14 1998-05-14 Gizeh-Werk GmbH, 51702 Bergneustadt Vorrichtung zum Querschneiden eines strangförmigen Gebildes
DE19921257B4 (de) * 1999-05-07 2004-11-25 Rowapack Gmbh Verpackungsdesign Und Stanztechnik Verfahren und Vorrichtung zum unterstiftsfreien Ausbrechen und Entfernen von kleinen und kleinsten Abfallstanzteilen aus Nutzen oder Werkstoffbögen, insbesondere für Flachbettstanz- und/oder Prägeautomaten
DE10065457B4 (de) * 2000-12-28 2007-04-26 Karl Marbach Gmbh & Co. Kg Verfahren und Vorrichtung zur Trennung von Nutzen und Abfall eines gestanzten oder geschnittenen Materialbogens sowie Anlage zur Herstellung von Nutzen aus einem Materialbogen
CH695854A5 (fr) * 2002-09-12 2006-09-29 Bobst Sa Procédé et dispositif de séparation de poses dans une machine de découpe d'éléments en plaque.
US20080295666A1 (en) * 2007-05-29 2008-12-04 Dn Craft Corporation Sheet punch devices having cutting blade formed with slant surface
DE202008012343U1 (de) 2008-09-17 2008-11-20 Karl Marbach Gmbh & Co. Kg Stanzmaschine mit Anhebeeinrichtung für Bogen
US9038511B2 (en) * 2008-11-12 2015-05-26 Esko-Graphics Kongsberg As Automatically removing waste material using a strip die when cutting a sheet of material according to a predetermined pattern
US20100192742A1 (en) * 2009-01-30 2010-08-05 Michigan Lasercut Stripping apparatus
DE202010017955U1 (de) * 2010-02-15 2013-06-05 Joachim Jakob Vorrichtung zum Ausbrechen
JP6393019B2 (ja) * 2011-09-26 2018-09-19 日産自動車株式会社 界磁極用磁石体の製造装置およびその製造方法
DE102012103858B4 (de) 2011-12-05 2024-01-25 Boxplan Gmbh Vorrichtung und Verfahren zum Herstellen eines Ausbrechwerkzeuges
JP5958565B2 (ja) * 2015-01-14 2016-08-02 Ｊｆｅスチール株式会社 打抜き加工方法、打抜き加工装置、および積層鉄心の製造方法
DE102017100900A1 (de) * 2017-01-18 2018-07-19 Boxplan Gmbh & Co. Kg Ausbrechkralle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR592179A (fr) * 1924-03-22 1925-07-28 Perfectionnement aux outils et poinçons à main pour le perçage et l'estampage
US2369896A (en) * 1943-07-16 1945-02-20 Chain Belt Co Punching metal bars, plates, and the like
US2816608A (en) * 1955-05-04 1957-12-17 Johnson Rubber Co Pressure fluid operated tool actuator
US3130885A (en) * 1962-11-01 1964-04-28 Fleming John Stuart Punch and die for tearing paper
US3670610A (en) * 1969-12-22 1972-06-20 Houdaille Industries Inc Method and means for punching
US3863531A (en) * 1974-02-26 1975-02-04 Aluminum Co Of America Method for forming holes
US3996832A (en) * 1975-04-10 1976-12-14 Standard Oil Company (Indiana) Punch for producing holes in foamed thermoplastic containers
DE2631117A1 (de) * 1976-07-10 1978-01-19 Leitz Fa Louis Lochstempel fuer brieflocher
DE9003329U1 (de) * 1990-03-12 1990-07-19 Meurer Nonfood Product GmbH, 7760 Radolfzell Vorrichtung zum Entfernen von Ausbrechteilen aus einem Werkstoffbogen od.dgl.

Also Published As

Publication number Publication date
US5443195A (en) 1995-08-22
DE4124098C2 (de) 1997-07-17
DE4124098C1 (fr) 1993-01-07
FI98135C (fi) 1997-04-25
DE9116425U1 (de) 1992-10-08
DK0523327T3 (da) 1995-09-11
FI922907A0 (fi) 1992-06-22
ES2075974T3 (es) 1995-10-16
DE59202923D1 (de) 1995-08-24
ATE125187T1 (de) 1995-08-15
FI922907A (fi) 1993-01-20
FI98135B (fi) 1997-01-15
EP0523327A1 (fr) 1993-01-20

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