EP0492428A2 - Dispositif pour poinçonner des pentures en feuilles ou en tôles - Google Patents

Dispositif pour poinçonner des pentures en feuilles ou en tôles Download PDF

Info

Publication number
EP0492428A2
EP0492428A2 EP91121761A EP91121761A EP0492428A2 EP 0492428 A2 EP0492428 A2 EP 0492428A2 EP 91121761 A EP91121761 A EP 91121761A EP 91121761 A EP91121761 A EP 91121761A EP 0492428 A2 EP0492428 A2 EP 0492428A2
Authority
EP
European Patent Office
Prior art keywords
roller
rollers
metal strip
band
perforated
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.)
Withdrawn
Application number
EP91121761A
Other languages
German (de)
English (en)
Other versions
EP0492428A3 (en
Inventor
Waldemar Bauer
Bernd Dipl.-Ing. Schappler
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.)
Westaflexwerk & Co KG GmbH
Original Assignee
Westaflexwerk & Co KG GmbH
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 Westaflexwerk & Co KG GmbH filed Critical Westaflexwerk & Co KG GmbH
Publication of EP0492428A2 publication Critical patent/EP0492428A2/fr
Publication of EP0492428A3 publication Critical patent/EP0492428A3/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/36—Perforating, i.e. punching holes using rotatable work or tool holders

Definitions

  • the invention relates to a device for punching strips of foils or sheet metal.
  • a metal strip punched with known discontinuous devices is not suitable, due to extensive experience, to be subsequently provided with grooves, in order then to be formed, helically wound, into folded, grooved and perforated, flexible tubes.
  • the spikes of the spiked roller are necessarily at a greater distance from one another, so that the total proportion of free perforations in such known tubes is relatively very small.
  • Such perforated pipes are particularly preferably used for pipe silencers.
  • the holes in the pipes are used for sound in the damping material and it can be seen that a relatively long pipe section is required to achieve a free passage area for maximum sound absorption.
  • a device for punching strips of foils or sheet metal characterized by an approximately horizontal pair of rollers between which the metal strip is transported, the upper roller being provided with punching dies and the lower roller with a covering made of flexible, elastic material is provided, into which the punch of the upper roller is immersed while deforming the covering, and guide and transport rollers for the metal strip which are arranged upstream and downstream of the roller pair, preferably the downstream rollers and / or the rollers being driven.
  • Such punching tools can be produced relatively simply and inexpensively, it is even possible to replace the upper punched roller with another such roller, if it is necessary to sharpen the punch or if another hole pattern is to be produced, the punch approximately one have a different shape, i.e. not a circular cross-section, but have, for example, a flat oval or triangular cross-section or even if the punches are to produce a different hole pattern. It is not necessary to replace the lower roller. Furthermore, this device allows continuous work, the throughput speed being variable in a further area and downstream devices having to be adapted, for example, for creasing and winding the perforated strip into a folded tube.
  • the punch of the top roller is preferably arranged radially to its axis of rotation, so that the punching or dipping process of the punch into the film and the deformable covering underneath it of the bottom roll takes place in the form of a rolling process - the hole in the film is therefore not caused by simultaneous separation of the material takes place in its entirety, but the material is sheared, which results in a much finer, more precise way of working and largely prevents burr formation.
  • the punch of the top roller is immersed in the elastomer of the bottom roller by about half the thickness of the metal strip.
  • the bottom roller elastomer preferably has a Shore hardness of at least 90.
  • the lower roller which is coated with the elastomer, expediently has a larger diameter than the upper perforated roller.
  • the punch does not always meet the same point on the elastomer coating of the lower roller, so that it is evenly stressed on its entire surface and it is easier to replace the top roller with the punch.
  • the device is expediently designed such that the pair of rollers is mounted in the mouth of a funnel arranged underneath for collecting the punching waste and for this purpose a driven stripping roller for adhering punching waste can advantageously also be arranged on the lower roller.
  • the metal strip can also pass a scraper for stuck stamping waste in the area of the funnel opening.
  • This scraper expediently consists of one or more brushes which are arranged above and / or below the metal strip.
  • Guide and / or take-off rollers are advantageously arranged downstream of the pair of perforated rollers as smoothing rollers or rollers for the perforated metal strip. These smoothing rollers or rollers are advantageously pressed against one another with adjustable pressure means in the form of springs or pressure pistons.
  • this smoothing roller or roller pair which is expediently arranged outside the collecting hopper for the punching waste, it is ensured that any slight deformation of the metal strip or foil, particularly in the area of the perforations, there in the form of the above burrs, smoothed and into the Plane of the metal strip transported through it is pushed back so that there are no obstacles during subsequent processing or further deformation.
  • a device for producing flexible, perforated tubes consisting of pre-perforated, grooved and wound metal strip is characterized in that a perforating device for metal strip, a known creasing device for metal strip and a tube winding and folding device is arranged downstream .
  • the tube winding and folding device can also be a known device for producing flexible, grooved tubes with a rectangular, triangular or oval cross section.
  • the punching of the hole pattern in the band is preferably carried out in such a way that perforations are located exclusively in the base of the profile and not in the flanks of the grooves.
  • the grooved and flexible tubes made from pre-perforated strips have a particular stability and strength which is not significantly less than that of the non-perforated tubes.
  • the hole pattern in the punched strips is also advantageously carried out in such a way that it has diagonally arranged rows of holes, the diagonal angle of which is adapted to the profile slope of the tube wound from the strip.
  • the diameter of the punched holes corresponds to half the developed circumference of the groove spacing, so that, due to these dimensional relationships, weakening of the wound tube by the perforation is kept as small as possible, but on the other hand the perforation is as effective as possible .
  • the hole pattern is arranged such that there is a free cross section of approximately 21% of the band surface.
  • the hole pattern is arranged in such a way that there is a free cross section of approximately 30% of the band surface.
  • the hole pattern is advantageously arranged in such a way that there is a free cross-section of 35 to 40% of the band surface.
  • rollers are arranged one above the other, with axes parallel to one another, in such a way that the outermost circumferences of the rollers "interlock".
  • the upper roller 1 is provided on its circumference with punch 3, which may have a circular cross-section and protrude radially from the outer surface 4 of the roller 1.
  • the punch 3 are arranged on the outer surface 4 of the roller 1 in the form of the desired hole pattern to be generated.
  • the circumferential roller 2 is provided on its circumference with a strong covering 5 made of an elastic-flexible material, expediently with an elastomer whose Shore hardness has at least 90 to 95.
  • the distance between the two rollers 1 and 2 is adjustable and adjustable, so that when the two rollers are rolled onto one another in the direction of the arrows A for the roller 1 and B for the roller 2, the punches 3 "dip" into the elastomer 5 of the roller 2.
  • the two rollers 1 and 2 expediently have the same width and this width corresponds at least to the width of a strip 6, which is moved between the two rollers 1 and 2, in the form of a thin metal sheet or a foil. This film can have a width of up to approximately 100 mm.
  • the belt 6 is moved in the direction of arrow C between the two rollers 1 and 2, its movement taking place in a manner specified below.
  • FIG. 2 shows an enlarged section from FIG. 1, namely the section at which the two rollers 1 and 2 come closest to one another and it can be seen there how a punch 3 cuts or punches out a perforated board 7 from the band 6, in order to produce a hole in the band 6, the elastomer 5 of the lower roller 2 giving way below the perforation point in the band or below the punch 3 and supporting the edges around the hole produced in the band 6 outside the punch 3.
  • the two rollers 1 and 2 must be set against one another in such a way that the punch 3 of the top roller 1 is immersed in the elastomer 5 of the bottom roller 2 by about half the thickness of the metal strip.
  • the band 6 Due to the rolling of the two rollers 1 and 2 on one another in the direction of rotation A and B, the band 6 is not simply punched out by a rising and falling punch, but rather the punch 3 located on the roller 1 is opposite the band 6 or the lower roller 2 is rolled so that it first with the immersed in the direction of rotation at the foremost end in the belt and tilts with respect to the belt 6 and the lower roller 2 from an inclined position into a vertical position.
  • the plate 7 is punched out of the band 6, ie not punched out by a uniform all-round cut, but rather cut out or cut, with only an approximately punctiform loading of the band 6 taking place in each case.
  • circuit board is much easier and easier to separate from the band 6 and also from the surface of the elastomer covering 5, because it does not lie flat on this surface, but only touches it at a few points, so that it is also relatively very light weight drops under the influence of gravity.
  • a suitably driven scraper roller 8 is arranged, which can be provided with bristles 9 on its circumference.
  • the direction of rotation of the stripping roller 8 suitably corresponds to the arrow D, so that stripped boards 7 from the surface of the roller 2 fall down.
  • the roller 8 is expediently driven such that it has a greater speed on its circumference than the roller 2 on its circumference.
  • FIG. An overview drawing is shown in FIG. It can be seen there that the two rollers 1 and 2 arranged one above the other are arranged in the opening of a hopper 10 which serves to collect and collect the separated boards 7, for example in a scrap box set up below the lower hopper opening.
  • the tape 6 runs according to this embodiment from a coil or a spool 11, is deflected around rollers 12 and 13 and passes on its, after the deflection via the roller 13, essentially horizontal path, between two superimposed oil application rollers 14 and 15 and one Inlet guide 16, which can be shaped in the form of a slot formed between two plates.
  • the belt 6 is straightened by this inlet guide 16 and any slight bends present are smoothed.
  • the oil application on the belt ensures easy and low-friction passage through this inlet guide 16.
  • the belt 6 then enters the upper region of the hopper 10 and passes through the two rollers 1 and 2 in the manner already described, where it is provided with the perforation.
  • stripping rollers can then be arranged above and below the web of the belt, expediently with bristles on their circumference, in order to ensure that possibly still jammed plates 7 are pressed into the perforations and fall into the funnel 10.
  • the belt 6 passes through pairs of smoothing rollers 17/18, between which any deformations of the belt 6, in particular on the circumference of the holes produced, are bent back and smoothed so that they do not interfere with subsequent processing of the belt.
  • the tape can then be wound onto a coil 19 or else it can be fed to a further processing, for example a device in which it is provided with longitudinal grooves and then wound and folded into a grooved, flexible tube.
  • the strip is perforated in the manner shown in FIG. 5, that is to say that wider zones are unperforated on both longitudinal edges of the strip, these zones being used for the subsequent folding when producing the wound tube.
  • the smoothing rollers 17/18 or the coil 19 can be provided with a drive 20.
  • a particularly preferred use of tapes made of foils or sheets which are perforated with the device described above is to expressively form them immediately after the punching process with known devices into grooved, flexible tubes, the tape being slanted on known devices Turns are wound and folded.
  • Such perforated flexible and grooved pipes are preferably used as silencer pipes.
  • Such a device is shown in Figure 6. In the right part of FIG. 6, the device described in connection with FIGS. 1 to 3 is shown using the same reference numerals.
  • This arrangement of the devices one behind the other has the particular advantage that, in the continuous process, the strip drawn off from the coil 11 is first punched, then in a device with a larger number of roller pairs 21, 22 arranged in series, that from the device described above fed band 6 is grooved, first the middle grooves and then progressively progressing to both outer sides, further grooves are produced on the band 6.
  • the grooved band 6a is fed to a winding device 23 which has a winding core or inner winding rolls 24 driven in the direction of the arrow, as well as outer pressure and winding rolls 25 cooperating therewith.
  • An adjustable guide device 26 is arranged in front of this winding station.
  • the known exemplary embodiment shown here is a winding station on which a grooved, flexible tube with a rectangular cross section is produced.
  • the winding station is fed the tape 6a in such a way that it takes into account oblique turns taking into account the bandwidth and the dimensions of the cross section of the tube 27, so that the longitudinal edges of the individual windings of the tape overlap and in the overlap area by means of appropriately shaped rollers 24, 25 be formed into a tightly connecting fold.
  • a flexible, grooved and perforated tube of any length was created.
  • 21 to 23 pipes of any cross-section and size can be produced on these known devices.
  • the band 6 In particular for the production of grooved, flexible and perforated pipes, it is advisable to provide the band 6 with a special hole pattern.
  • the strip material consists of aluminum and the strip thickness is 0.15 mm, with a strip width of 60 to 100 mm.
  • the various dimensions and dimensions are given in millimeters for the hole pattern.
  • the hole diameter is 3 mm and the total free cross-section created by the perforation in the strip is 21% based on the total strip area.
  • a hole pattern can be created that a free Cross section of about 30% of the strip surface results.
  • the hole pattern With a material thickness of up to 0.3 mm of the band and a hole diameter of 5 mm, the hole pattern can be designed in such a way that there is a free cross-section of approximately 35 to 40% of the band surface.
  • the perforation pattern is carried out in such a way that the perforations between the rollers 21, 22 are only in the profile base of the grooves and not after the grooving are in their flanks. This ensures that due to the perforation, a weakening of the finished tube wound from this band is kept within very small limits because the flanks of the grooves, which essentially determine the strength and stability of the tube, do not or only to a very small extent through the perforation Dimensions are covered.
  • a preferred exemplary embodiment is shown in FIG. 7.
  • the band 6 with the perforation 5 in the flat, stretched state can be seen in cross section, as it is fed to the creasing device 21, 22 and, drawn over it, the same band section after leaving the creasing device 21, 22.
  • the rounding with the radius r or the diameter d thus also corresponds to the distance between the grooves or their open widths.
  • the perforation in the band 6 is arranged in such a way that a sufficiently wide unperforated area is available adjacent to the outer edges or edges of the band, in order to have the connecting folds in these areas after the band has been formed into a tube train and shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP19910121761 1990-12-22 1991-12-19 Device for punching strips of foils or sheets Withdrawn EP0492428A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9017365U 1990-12-22
DE9017365U DE9017365U1 (de) 1990-12-22 1990-12-22 Vorrichtung zum Lochen von Bändern aus Folien oder Blech

Publications (2)

Publication Number Publication Date
EP0492428A2 true EP0492428A2 (fr) 1992-07-01
EP0492428A3 EP0492428A3 (en) 1992-08-26

Family

ID=6860617

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910121761 Withdrawn EP0492428A3 (en) 1990-12-22 1991-12-19 Device for punching strips of foils or sheets

Country Status (2)

Country Link
EP (1) EP0492428A3 (fr)
DE (1) DE9017365U1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0964465A1 (fr) * 1996-10-03 1999-12-15 Katayama Special Industries, Ltd. Procede de fabrication d'un substrat d'electrode pour batterie, et substrat ainsi obtenu
EP1219364A1 (fr) * 1999-09-03 2002-07-03 Toyo Kohan Co., Ltd. Rouleau a disques de perforation pour toles, dispositif de perforation pour toles equipe dudit rouleau, procede de perforation de toles et tole metallique perforee
US7066066B2 (en) * 2004-03-15 2006-06-27 Teck Cominco Metals Ltd. Continuous rotary hole punching method and apparatus
CN100446902C (zh) * 2005-03-28 2008-12-31 精工爱普生株式会社 制造穿孔工作板的方法
DE102012101474A1 (de) * 2012-02-23 2013-08-29 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung von Metallbauteilen sowie Vorrichtung zur Durchführung des Verfahrens
CN107855404A (zh) * 2017-12-14 2018-03-30 华北理工大学 一种调节辊式冲孔间距的装置与方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008006656U1 (de) 2008-02-21 2008-07-17 Dierl, Ludwig, Dipl.-Ing. Synchronflachriementrieb
DE102008018759A1 (de) 2008-02-21 2009-08-27 Ludwig Dierl Synchronflachriementrieb
DE102013018995B4 (de) * 2013-11-13 2015-06-18 Jörg Franke Anlage zum Rotationsschneiden von Elektroblechen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE845634C (de) * 1950-02-07 1952-08-04 Gerhard Jahn Umlauf-Stanze
US3282142A (en) * 1962-09-17 1966-11-01 Sauer Mach Co L E Anvil for rotary die cutting
GB1212409A (en) * 1968-11-12 1970-11-18 Merrill David Martin Rotary die cutters
DE1962104A1 (de) * 1969-12-11 1971-06-16 Hubbuch Heinz Dipl Ing Schnittwerkzeuge in Form von rotierenden Rollwerkzeugen
EP0015580A1 (fr) * 1979-03-12 1980-09-17 FISHER & PAYKEL LIMITED Procédés et/ou dispositifs de perforation d'une tôle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE845634C (de) * 1950-02-07 1952-08-04 Gerhard Jahn Umlauf-Stanze
US3282142A (en) * 1962-09-17 1966-11-01 Sauer Mach Co L E Anvil for rotary die cutting
GB1212409A (en) * 1968-11-12 1970-11-18 Merrill David Martin Rotary die cutters
DE1962104A1 (de) * 1969-12-11 1971-06-16 Hubbuch Heinz Dipl Ing Schnittwerkzeuge in Form von rotierenden Rollwerkzeugen
EP0015580A1 (fr) * 1979-03-12 1980-09-17 FISHER & PAYKEL LIMITED Procédés et/ou dispositifs de perforation d'une tôle

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6682851B2 (en) 1996-10-03 2004-01-27 Katayama Special Industries, Ltd. Method of manufacturing battery electrode substrate and battery electrode substrate
EP0964465A4 (fr) * 1996-10-03 1999-12-29
EP0964465A1 (fr) * 1996-10-03 1999-12-15 Katayama Special Industries, Ltd. Procede de fabrication d'un substrat d'electrode pour batterie, et substrat ainsi obtenu
US6455201B1 (en) 1996-10-03 2002-09-24 Katayama Special Industries, Ltd. Method of manufacturing battery electrode substrate and battery electrode substrate
US6869728B2 (en) 1996-10-03 2005-03-22 Katayama Special Industries, Ltd. Method of manufacturing battery electrode substrate and battery electrode substrate
US6682852B2 (en) 1996-10-03 2004-01-27 Katayama Special Industries, Ltd. Method of manufacturing battery electrode substrate and battery electrode substrate
EP1219364A4 (fr) * 1999-09-03 2003-05-28 Toyo Kohan Co Ltd Rouleau a disques de perforation pour toles, dispositif de perforation pour toles equipe dudit rouleau, procede de perforation de toles et tole metallique perforee
EP1219364A1 (fr) * 1999-09-03 2002-07-03 Toyo Kohan Co., Ltd. Rouleau a disques de perforation pour toles, dispositif de perforation pour toles equipe dudit rouleau, procede de perforation de toles et tole metallique perforee
US7380484B2 (en) 2004-03-15 2008-06-03 Teck Cominco Metals Ltd. Continuous rotary hole punching method and apparatus
US7066066B2 (en) * 2004-03-15 2006-06-27 Teck Cominco Metals Ltd. Continuous rotary hole punching method and apparatus
CN100446902C (zh) * 2005-03-28 2008-12-31 精工爱普生株式会社 制造穿孔工作板的方法
DE102012101474A1 (de) * 2012-02-23 2013-08-29 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung von Metallbauteilen sowie Vorrichtung zur Durchführung des Verfahrens
CN107855404A (zh) * 2017-12-14 2018-03-30 华北理工大学 一种调节辊式冲孔间距的装置与方法
CN107855404B (zh) * 2017-12-14 2023-04-18 华北理工大学 一种调节辊式冲孔间距的装置与方法

Also Published As

Publication number Publication date
EP0492428A3 (en) 1992-08-26
DE9017365U1 (de) 1992-01-30

Similar Documents

Publication Publication Date Title
DE3814448C2 (fr)
CH708352A1 (de) Verfahren und Vorrichtung zum Erstellen einer Aufreissnaht auf Verpackungsfolien.
DE2359367B2 (de) Verfahren zur Herstellung von Verstärkungsfasern für ein vergießbares Material
DE102006059609B4 (de) Herstellungsverfahren für Rohre und Walzenstraße zur Durchführung
EP0492428A2 (fr) Dispositif pour poinçonner des pentures en feuilles ou en tôles
DE2228496C2 (de) Verfahren zur Wellung eines dünnen, ebenen Bleches
DE3213895C2 (de) Vorrichtung zum Zickzack-Falzen von Papierbahnen o.dgl.
DE1536849B1 (de) Vorrichtung und Verfahren zur Herstellung von gefalteten Filtereinsaetzen aus einem Filtermaterialband
EP2497582B1 (fr) Dispositif de laminage pour la déformation d'un matériau métallique en forme de bande
DE1504368B1 (de) Wabenfoermige Struktur aus gewebeverstaerktem Kunststoff und Verfahren zu deren Herstellung
DE2641214C3 (de) Vorrichtung zum Auflösen eines Folien- oder Blattstapels
DE10218575B4 (de) Trennvorrichtung für bandförmiges Halbzeug mit Sollbruchstellen
EP2093048B1 (fr) Dispositif destiné à la fabrication d'une protection des rebords
DE10119460B4 (de) Verfahren und Vorrichtung zum Aufwickeln einer Materialbahn auf eine als Wickelkern dienende Hülse
EP3757046A1 (fr) Dispositif et procédé de raccordement de deux bandes de matière se déroulant d'une bobine
DE10027010C2 (de) Verfahren zur Herstellung eines Streckgitters sowie ein mit diesem Verfahren hergestelltes Streckgitter
EP1356887B1 (fr) Dispositif pour sectionner une ébauche en forme de bande ayant des lignes d'affaiblissement
EP0890687B1 (fr) Procédé de fabrication d' un closoir de faitage
DE60204888T2 (de) Rotierendes standwerkzeug zum kontinuierlischen lochen von profilen sowie verwendung desselben
EP0623454B1 (fr) Procédé et dispositif pour la production d'un article en nid d'abeilles
DE1479225C3 (de) Verfahren und Vorrichtung zur Herstellung von gewellten Kunststoff-Folienbahnen
DE2811494C2 (fr)
DE1536849C (de) Vorrichtung und Verfahren zur Herstellung von gefalteten Filtereinsätzen aus einem Filtermaterialband
DE1907699C3 (de) Vorrichtung zur Herstellung eines kontinuierlich fortlaufenden Netzstreifens
DE1602424C3 (de) Stanzverfahren zur Teilung von Blechbändern

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19921112