EP0620087B1 - Procédé pour la perforation de films et dispositif de mise en oeuvre de ce procédé - Google Patents
Procédé pour la perforation de films et dispositif de mise en oeuvre de ce procédé Download PDFInfo
- Publication number
- EP0620087B1 EP0620087B1 EP94870028A EP94870028A EP0620087B1 EP 0620087 B1 EP0620087 B1 EP 0620087B1 EP 94870028 A EP94870028 A EP 94870028A EP 94870028 A EP94870028 A EP 94870028A EP 0620087 B1 EP0620087 B1 EP 0620087B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- sleeves
- tube
- film
- holes
- 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
Links
Images
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
- B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
-
- 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
- B26D7/1845—Means for removing cut-out material or waste by non mechanical means
- B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure
-
- 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
- B26D7/1845—Means for removing cut-out material or waste by non mechanical means
- B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
-
- 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
- B26F1/26—Perforating by non-mechanical means, e.g. by fluid jet
-
- 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
- B26F1/384—Cutting-out; Stamping-out using rotating drums
-
- 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
- Y10T83/0405—With preparatory or simultaneous ancillary treatment of work
- Y10T83/041—By heating or cooling
- Y10T83/0414—At localized area [e.g., line of separation]
-
- 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
- Y10T83/0448—With subsequent handling [i.e., of product]
- Y10T83/0453—By fluid application
-
- 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
- Y10T83/202—With product handling means
- Y10T83/2066—By fluid current
- Y10T83/207—By suction means
-
- 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
- Y10T83/465—Cutting motion of tool has component in direction of moving work
- Y10T83/4766—Orbital motion of cutting blade
- Y10T83/4795—Rotary tool
- Y10T83/483—With cooperating rotary cutter or backup
- Y10T83/4836—With radial overlap of the cutting members
Definitions
- the present invention relates to a method for perforation of a film, according to which successive series of perforations are made by means for cut, parts of the film thus perforated are seized and remote by means that can grab and, if necessary, removed from the latter means by blowing.
- the present invention relates more particularly to such a process for perforating films, more specifically plastic films, such as all types possible from so-called stretch films, high density films, polyethylene films, polypropylene, etc.
- the present invention relates a method for practicing, effectively and rational, relatively dimensional perforations big in movies for example in the case of circular perforations of the order of 6 to 60 mm.
- strips are cut by cutting assemblies mounted on a drum and comprising two knives parallel to each other which are spaced one of each other by a distance corresponding to the width of this strip and which protrude outside the wall of the drum.
- the film is guided between this drum and a second driven in the opposite direction and serving as a support when cutting and used to distance the cut strips.
- These bands are indeed sucked against this drum by channels crossing this second drum and connected successively a vacuum pump and a source of pressurized air.
- the present invention relates to a method which allows to obtain a film material provided with large perforations, which can be done very simply and fast and which is primarily intended to become a packaging material for flowers, plants, vegetables, fruit, food, in general for example foods that need to be frozen, in other words products for which packaging must be obtained efficient which allows, at the same time, a very aeration effective and important products.
- a method is proposed which allows to provide relatively large perforations all possible packaging materials, up to and including an extremely thin film material which has good heard a very high elasticity, as well as what we calls shrink films, which is impossible with known methods.
- a method for perforating a thermoplastic film by heated elements is known from FR-A-2,378,623, but in this case holes are made by local fusion of the matter. This material is not cut but melted, and driven back radially, which has the desired result that the hole is surrounded by a thickened edge.
- the film is transported between two cylinders which one turns against the other, one of which is provided with heated sleeves which protrude outside the cylinder wall, while the second cylinder is provided with holes in which come lodge the sleeves during the rotation of the cylinders and in which the sockets are placed, each socket being connected to a tube, the passage in this socket is finding in connection with a channel made in this tube, this tube extending to a terminal flange of the cylinder, the canal located in connection with a passage practiced in this cylinder end flange.
- the invention also relates to an advantageous device, to implement the above method according to the invention.
- the invention thus relates to a device for the perforation of films, which is mainly formed by two cylinders turning against each other, one of which is provided means for cutting parts out of the film, while that the second cylinder is provided with means which can grasp the cut parts, characterized in that the means for cutting parts are sleeves heated through the outer wall of the first cylinder and cutting out small discs, while the second cylinder has holes in which can come accommodate the sleeves during the rotation of the cylinders, means for grasping the cut parts and therefore the small cut discs including sockets which are placed in these holes and which can be successively put in connection with a vacuum pump, respectively air under pressure, each socket being connected to a tube and presenting a passage which is linked to a channel formed in this tube, this tube extending to a cylinder end flange, the channel being in connection with a passage made in this terminal flange of the cylinder.
- FIG. 1 a device is schematically represented for implementing the method according to the invention, by which the main elements of this device are formed by a feed roller 1 on which is arranged the film material 2 to be treated, a cylinder of braking 3 for tensioning the film material 2, rollers 4-5 cooperating mutually to practice in the subject of film 2 relatively large perforations, respectively, to move away from the film material 2 the small cut discs, whereby the film material 2 scrolls around roller 5 and finally a roller drive 6 for the film material 2, which has task of keeping the latter tense in cooperation with the brake cylinder 3 until the material of perforated film is wound on a roll supply 7.
- the cylinder 4 is constituted, in accordance with the invention, mainly by a thick-walled sleeve 8 in which are made several holes 9 which are arranged according to a well-defined configuration, for example in this case, in parallel rows, the holes 9 being placed in a zigzag.
- the sleeves 10 are made of copper and are fixed for example by welding on a batten 11, by example also in copper, in which is installed an electrical resistor 12 which, suitably, for example by electrical conduits 13-14, is connected to an electrical circuit.
- the cylinder 5 according to the invention is also formed by a thick-walled tube 18 in which are made holes 19 whose diameter is preferably equal to diameter of the holes 9 made in the tube 8 and by which these holes 19 are made in the tube 18, according to the same configuration as the configuration holes 9 in the tube 8.
- a socket 20 whose free end coincides with the periphery of the tube 18 and through which the sockets of a one and the same row are fixed to a common channel 21 which can be formed by a suitable tube whose passage 22 is in connection with the passages 23 practiced in the corresponding sockets 20.
- This channel 21 gives, at one end of the cylinder 5, on a passage 24 made in the flange 25 of the cylinder 5, in which are also housed the ends of the tubes 21.
- the other ends of the tubes 21 are housed in a identically in a flange 26, these flanges 25 and 26 being fixed with the tube 18 by means of screws or the like, not shown.
- the aforementioned circular notches 30 and 31 extend at an angle of 90 ° and are placed diametrically to each other, the notch suction 30 being disposed above.
- the film material 2 which, by the cooperation of the cylinders 3 and 6, is placed taut across the device, scrolls between cylinders 4 and 5 where the first comes into contact with a defined row sleeves 10 which are heated to a temperature appropriate so that they can penetrate to through the film material 2.
- the sleeves 10 will cross film 2 like a knife reheated; after which, these sleeves 10 come arrange in the holes 19 made in the tube 18 of the cylinder 5 and, in this way, film 2 plus specifically the small disks 32 come into place contact with sockets 20.
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)
- Electrotherapy Devices (AREA)
- Manufacturing Of Printed Circuit Boards (AREA)
- Air Bags (AREA)
Description
Claims (8)
- Procédé pour la perforation d'un film, selon lequel des séries successives de perforations sont pratiquées par des moyens (10) pour découper, des parties du film ainsi perforé sont saisies et éloignées par des moyens (20) pouvant saisir et si nécessaire écartées de ces dernier moyens (20) par soufflage, caractérisé en ce qu'on utilise comme moyens (10) pour découper des manchons qu'on réchauffe de telle sorte que ces manchons traversent le film à la manière d'un couteau réchauffé et découpent des petits disques du film, disques qu'on saisit à l'aide de douilles (20) pourvues d'un passage (23) qu'on met sucessivement en contact avec une pompe à vide, respectivement de l'air sous pression.
- Procédé selon la revendication 1, caractérisé en ce que le film est transporté entre deux cylindres (4-5) qu'on fait tourner l'un contre l'autre, dont l'un (4) est muni des manchons (10) réchauffés qui font saillie en dehors de la paroi du cylindre (4), tandis que le second cylindre (5) est muni de trous (19) dans lesquels viennent se loger les manchons (10) lors de la rotation des cylindres (4-5) et dans lesquels les douilles (20) sont placées, chaque douille (20) étant raccordée à un tube (21), le passage (23) dans cette douile se trouvant en liaison avec un canal (22) pratiqué dans ce tube (21), ce tube s'étendant jusqu'à une bride terminale (25) du cylindre (5), le canal (22) se trouvant en liaison avec un passage (24) pratiqué dans cette bride terminale (25) du cylindre (5).
- Dispositif pour la perforation de films, qui est formé principalement par deux cylindres (4-5) tournant l'un contre l'autre, dont l'un (4) est muni de moyens (10) pour découper des parties hors du film (2), tandis que le second cylindre (5) est muni de moyens (20) qui peuvent saisir les parties découpées, caractérisé en ce que les moyens pour découper des parties sont des manchons (10) réchauffés traversant la paroi externe du premier cylindre (4) et découpant des petits disques (32), tandis que le second cylindre (5) est muni de trous (19) dans lesquels peuvent venir se loger les manchons (10) lors de la rotation des cylindres (4-5), les moyens pour saisir les parties découpées et donc les petits disques (32) découpés comprenant des douilles (20) qui sont placées dans ces trous (19) et qui peuvent être mises successivement en liaison avec une pompe à vide, respectivement de l'air sous pression, chaque douille (20) étant raccordée A un tube (21) et présentant un passage (23) qui se trouve en liaison avec un canal (22) pratiqué dans ce tube (21), ce tube s'étendant jusqu'à une bride terminale (25) du cylindre (5), le canal (22) se trouvant en liaison avec un passage (24) pratiqué dans cette bride terminale (25) du cylindre (5).
- Dispositif selon la revendication 3, caractérisé en ce que les manchons (10) sont montés à travers des trous (9) pratiqués dans la paroi (8), dans lequel ces trous (9) sont plus grands que les dimensions correspondantes des manchons (10) et dans lequel les manchons (10) d'une même rangée sont fixés sur une latte commune (11) dans laquelle est prévu un élément de chauffage (12).
- Dispositif selon la revendication 3 ou 4, caractérisé en ce que les manchons (10) sont fixés dans le cylindre (4) de forme tubulaire au moyen de vis (16) à écrous (17), dans lequel, entre la paroi interne du tube (8) et chaque latte (11), on prévoit une matière (15) à faible isolation thermique.
- Dispositif selon l'une ou l'autre des revendications 3 à 5, caractérisé en ce que les dimensions d'une douille (20) sont notablement inférieures aux dimensions internes d'un manchon (10).
- Dispositif selon l'une ou l'autre des la revendications 3 à 6, caractérisé en ce que la bride terminale précitée (25), dans laquelle on prévoit les passages (24), s'appuie contre une bride fixe (29) dans laquelle sont pratiquées deux encoches circulaires (30) et (31) dont l'une se trouve en relation avec un mécanisme d'aspiration, par exemple une pompe à vide, tandis que l'autre se trouve en liaison avec un mécanisme pour délivrer de l'air sous pression.
- Dispositif selon la revendication 7, caractérisé en ce que les encoches circulaires (30) et (31) forment un angle de 90° et sont placées de manière diamétralement opposée, l'encoche d'aspiration se trouvant au-dessus.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9300148A BE1006751A3 (nl) | 1993-02-17 | 1993-02-17 | Werkwijze voor het perforeren van folie en inrichting die deze werkwijze toepast. |
BE9300148 | 1993-02-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0620087A1 EP0620087A1 (fr) | 1994-10-19 |
EP0620087B1 true EP0620087B1 (fr) | 1999-01-07 |
Family
ID=3886849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94870028A Expired - Lifetime EP0620087B1 (fr) | 1993-02-17 | 1994-02-15 | Procédé pour la perforation de films et dispositif de mise en oeuvre de ce procédé |
Country Status (5)
Country | Link |
---|---|
US (1) | US5449482A (fr) |
EP (1) | EP0620087B1 (fr) |
AT (1) | ATE175376T1 (fr) |
BE (1) | BE1006751A3 (fr) |
DE (1) | DE69415711D1 (fr) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0004345D0 (en) * | 2000-02-25 | 2000-04-12 | Sullivan John A | Rotary die-cutting machine |
WO2002022296A2 (fr) | 2000-09-11 | 2002-03-21 | Allison Advanced Development Company | Tole rainuree mecaniquement et procede de production |
EP1361028A1 (fr) * | 2002-05-06 | 2003-11-12 | Kba-Giori S.A. | Dispositif de découpe destiné à découper des fenêtres dans un substrat |
US20050070415A1 (en) * | 2003-09-30 | 2005-03-31 | Haasl Andrew L. | Assembly for and method of preventing buildup of debris in a folding roll tucker assembly |
US7066066B2 (en) * | 2004-03-15 | 2006-06-27 | Teck Cominco Metals Ltd. | Continuous rotary hole punching method and apparatus |
SE527886C2 (sv) * | 2004-07-02 | 2006-07-04 | Sandvik Intellectual Property | En rotationskniv, en stödvals och en rotationsknivsanordning |
CN101535015B (zh) * | 2006-10-17 | 2012-06-27 | 纤维网辛普森维利有限公司 | 有孔无纺织物及其生产工艺和设备 |
DE102007015624A1 (de) * | 2007-03-29 | 2008-10-02 | Natec Gmbh | Querschneideinrichtung |
US20110091620A1 (en) * | 2009-10-20 | 2011-04-21 | Han Jung Hoon | Apparatus and Method for Perforation of Fruits and Vegetables |
DE102010009034A1 (de) * | 2010-02-24 | 2011-08-25 | Haff & Schneider GmbH & Co OHG, 87484 | Vorrichtung zur Stanzbearbeitung von flächigen Substraten |
ES2392087B1 (es) * | 2010-04-21 | 2013-10-18 | Francisco RUIZ BERNAL | Máquina de troquelado en frío para film de plástico |
CN103737648A (zh) * | 2014-01-08 | 2014-04-23 | 浙江诺比德机械科技有限公司 | 一种橡筋切断装置 |
US11123893B2 (en) * | 2018-07-18 | 2021-09-21 | Roto-Die Company, Inc. | Vacuum assist cutting and anvil cylinders |
CN109849101A (zh) * | 2018-12-28 | 2019-06-07 | 东莞市威骏不织布有限公司 | 农用地布开孔制作方法及设备 |
CN112828994A (zh) * | 2020-12-30 | 2021-05-25 | 云南白药集团无锡药业有限公司 | 一种云南白药膏在线打孔系统 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3031905A (en) * | 1957-06-20 | 1962-05-01 | Daniel B Phillips | Cutting device with retainer for cut products in the tool thereof and suction means for stripping said product from retainer |
US3654829A (en) * | 1969-07-29 | 1972-04-11 | Scandia Packaging Mach | Apparatus for punching holes in heat shrinkable web material |
US3707102A (en) * | 1970-07-21 | 1972-12-26 | American Can Co | Film perforating apparatus |
CH605078A5 (fr) * | 1974-12-31 | 1978-09-29 | Siegfried Harcuba | |
FR2378623A1 (fr) * | 1977-01-31 | 1978-08-25 | Hadjian Levon | Perfectionnements a la perforation des feuilles thermoplastiques |
FR2392916A1 (fr) * | 1977-05-31 | 1978-12-29 | Chambre Imprimerie Claude | Dispositif pour effectuer des decoupages dans une bande de materiau defilant en continu |
SE442964B (sv) * | 1982-12-01 | 1986-02-10 | Tetra Pak Int | Sett att avlegsna spillmaterial vid stansaggregat med samverkande valsar |
DE3417536A1 (de) * | 1984-05-11 | 1985-11-14 | Winkler & Dünnebier, Maschinenfabrik und Eisengießerei GmbH & Co KG, 5450 Neuwied | Verfahren und vorrichtung zum ausschneiden von fenstern in briefumschlaegen |
US4656900A (en) * | 1985-11-15 | 1987-04-14 | Mobil Oil Corporation | Rotary tube punching arrangement and method for punching holes into a moving web material |
US5140880A (en) * | 1991-05-08 | 1992-08-25 | Littleton Industrial Consultants, Inc. | Push-pull apparatus and method for web cutting and trim strip removal |
-
1993
- 1993-02-17 BE BE9300148A patent/BE1006751A3/nl not_active IP Right Cessation
-
1994
- 1994-02-15 DE DE69415711T patent/DE69415711D1/de not_active Expired - Lifetime
- 1994-02-15 AT AT94870028T patent/ATE175376T1/de not_active IP Right Cessation
- 1994-02-15 EP EP94870028A patent/EP0620087B1/fr not_active Expired - Lifetime
- 1994-02-17 US US08/197,974 patent/US5449482A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
BE1006751A3 (nl) | 1994-11-29 |
DE69415711D1 (de) | 1999-02-18 |
EP0620087A1 (fr) | 1994-10-19 |
US5449482A (en) | 1995-09-12 |
ATE175376T1 (de) | 1999-01-15 |
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