EP4090480A1 - Agrafeuse - Google Patents

Agrafeuse

Info

Publication number
EP4090480A1
EP4090480A1 EP21700736.8A EP21700736A EP4090480A1 EP 4090480 A1 EP4090480 A1 EP 4090480A1 EP 21700736 A EP21700736 A EP 21700736A EP 4090480 A1 EP4090480 A1 EP 4090480A1
Authority
EP
European Patent Office
Prior art keywords
punching
punching tool
tool
mpa
another
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.)
Granted
Application number
EP21700736.8A
Other languages
German (de)
English (en)
Other versions
EP4090480C0 (fr
EP4090480B1 (fr
Inventor
Melanie INGENDOH
Manuel Bendler
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.)
SMS Group GmbH
Original Assignee
SMS Group 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 SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP4090480A1 publication Critical patent/EP4090480A1/fr
Application granted granted Critical
Publication of EP4090480C0 publication Critical patent/EP4090480C0/fr
Publication of EP4090480B1 publication Critical patent/EP4090480B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • B21D39/034—Joining superposed plates by piercing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
    • B21C47/247—Joining wire or band ends
    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding

Definitions

  • the present invention relates to a stapling machine for connecting an end section of an outgoing metal strip to a starting section of an incoming metal strip for a continuously operated belt system, as is typically used in metal strip treatment or metal strip finishing plants.
  • the present invention relates to a belt system comprising the stapling machine according to the invention and a method for connecting an end section of an outgoing metal strip to an initial section of an incoming metal strip in a continuously operated belt system.
  • stapling machines are used to maintain the continuous run of the belt and connect the new metal belt with the outgoing metal belt in the entry area of the belt system.
  • different types of connection such as clinching, gluing, welding or punching, can be used.
  • Corresponding stapling machines are widely known to those skilled in the art from the prior art.
  • the stapling machines most frequently used in practice use punch connections, which are also known as stitching. Such stapling machines have a single stapling tool built into the stapling machine in one or two rows.
  • stitching can generally be used up to a metal strip thickness of 6 mm.
  • a stapling machine is known from US Pat. No. 3,114,151 in which an end section of a first metal strip is connected to the start section of a second metal strip is connected by means of a stitch seam.
  • both sections of the respective metal strips are initially overlapped. Then the thickness of the overlap area is reduced transversely to the longitudinal extension of the two metal strips to such an extent that a connection by means of the stitch seam is made possible.
  • the stapling tools have technologically unsuitable parameters, since they are typically designed for the minimum metal strip thicknesses to be stapled.
  • aluminum strips in particular, it has been shown that a cutting process when stapling with knife gaps that are too narrow not only has a detrimental effect on the durability of the stapling tool, but also on the quality of the cutting edges during stapling. In the case of aluminum tapes in particular, this leads to increased tinsel formation in the area of the stitching seam.
  • These metal flakes are carried to the subsequent process areas, where they have a negative effect on the product quality of the metal strips to be processed. Furthermore, the metal flakes settle on the rollers of the process line and cause increased maintenance costs.
  • the present invention is therefore based on the object of providing a stapling machine of the type described at the outset which can be used for a larger range of thicknesses and / or strengths without having the disadvantages known from the prior art.
  • a further object of the present invention is to provide an improved method for connecting an end section of an outgoing metal strip to an initial section of an incoming metal strip in a continuously operated strip installation.
  • a stapling machine for a continuously operated belt system for connecting the end section of an outgoing metal strip to the starting section of an incoming metal strip, which has a first punching tool and a second punching tool.
  • the first punching tool is designed to connect the metal strips to one another when their thicknesses are in a first thickness range and / or their strengths are in a first strength range.
  • the second punching tool is designed to connect the metal strips to one another when their thicknesses are in a second thickness range and / or their strengths are in a second strength range, the two thickness ranges and / or strength ranges differing from one another.
  • the first thickness range is preferably 0.2 to 2.5 mm and the second thickness range 2.0 to 3.5 mm.
  • the first strength range is 20 MPa to 250 MPa for aluminum or an alloy thereof, and 100 MPa to 350 MPa for steel and the second strength range is 200 MPa to 600 MPa for aluminum or an alloy thereof, and 300 MPa to 1000 MPa for steel.
  • metal strips with a first thickness range and / or a first strength range are connected to one another with a first punching tool and metal strips with a second thickness area and / or a second strength area connected to one another with a second punching tool, both thickness areas and / or strength areas differing from one another. Due to the two different punching tools, depending on the band thicknesses to be stapled and / or the band strengths of the metal bands to be connected to one another, the appropriate punching tool can be selected and used in accordance with the connection requirements. This not only has a positive effect on the quality of the cutting edges, but also protects the punching tool used.
  • Stitching is preferably used as the type of connection. Stitching is a specific punching process in which a form-fitting connection between the two metal strips is created by creating a punching geometry and then stretching it.
  • the connection by means of stitch seams can advantageously take place in a single row or, more preferably, in a double row.
  • the metal strips to be connected to one another are preferably aluminum strips or steel strips.
  • the first punching tool has a first punching pattern and the second punching tool has a second punching pattern, the two punching patterns differing from one another.
  • the punching patterns are different punching geometries that are punched into the corresponding metal strip, for example aluminum or steel, by means of the punch and the die. Due to the different punching patterns that the two punching tools have, the punching tools can each be optimally designed for the respective metal strips, so that the seaming machine according to the invention can be used overall for a larger range of materials.
  • the first punching tool has a first cutting gap and the second punching tool has a second cutting gap which differs from the first cutting gap. This also has an advantageous effect on the usability of the stapling machine, since the punching tools can thus be optimally designed specifically for the range of materials to be stapled.
  • the tool change between the first and the second punching tool can be done manually
  • the stapling machine according to the invention is advantageously designed in such a way that the tool change between the first and the second punching tool takes place fully automatically. This makes it possible for the tool to be changed while the belt is running. It is therefore not necessary to stop the entire strip processing line of the strip system.
  • both punching tools are arranged in a punching tool cassette.
  • the punching tool cassette is preferably displaceable within the stapling machine by means of a displacement device.
  • the stapling machine has, for example, a motor and a toothed rack that interacts with the punching tool cassette and allows the tool to be changed quickly.
  • the punching tool cassette is arranged in the stapling machine in such a way that one punching tool is arranged in a punching position and the other is arranged in a parking position.
  • the punching tool located in the punching position is exchanged for the other punching tool in stock, in which the shifting device of the stapling machine moves the punching tool cassette accordingly.
  • the punching tool stored in the parking position is advantageously protected from damage by means of wear plates.
  • the arrangement of the punching tools in a punching tool cassette thus enables an improved and faster tool change, so that the effort for the entire tool change process is reduced.
  • the tool change preferably takes place between two stitch seams while the belt is running.
  • the tool can be changed while the belt is not running.
  • each of the punching tools is designed with a blow-off by means of compressed air and / or a tool oiling.
  • Another aspect of the present invention also relates to a tape system having the stapling machine according to the invention.
  • FIG. 1 a variant embodiment of the stapling machine according to the invention in a side view
  • FIG. 2 a variant embodiment of the stapling machine according to the invention in a side view
  • Figure 2 shows a variant of the punching tool cartridge.
  • Figure 1 is a stapling machine 1 for connecting the end portion of an outgoing metal strip with the beginning portion of an incoming
  • the stapling machine 1 comprises a first punching tool 20, which is designed to connect metal strips, the thicknesses of which are in a first thickness range, preferably in the range from 0.2 to 2.5 mm, to one another, as well as a second punching tool 30, which is used for this purpose is designed to connect metal strips, the thicknesses of which are in a second thickness range, preferably 2 to 3.5 mm, to one another, the two thickness ranges differing from one another.
  • the two punching tools 20, 30 are arranged in a punching tool cassette 80, which can be displaced by means of a displacement device 60 within the stapling machine 1, so that the first punching tool 20 is in a punching position 50 and the second punching tool 30 is in a parking position 70 within the stapler 1 can be arranged.
  • the stapling machine 1 has a motor (not shown) and a toothed rack 10 which interacts with the punching tool cassette 80 and allows the rapid tool change.
  • each of the punching tools 20, 30 has a corresponding punch and a die (not shown).
  • the punch and the die of the first punching tool 20 preferably differ from the second punching tool 30, ie the first punching tool 20 has a first punching pattern and the second punching tool has a second punching pattern. Additionally or alternatively, the punches and the die of the respective punching tools 20, 30 also have different cutting gaps.
  • the respective punching tool 20, 30 located in the punching position 50 is operated hydraulically in the embodiment variant of the stapling machine 1 shown here.
  • the stapling machine 1 comprises a hydraulic unit 40 which is arranged in the lower part of the stapling machine 1.
  • the first punching tool 20 is arranged in the punching position 50 within the stitching machine 1.
  • the punching tool 30 is accordingly arranged on the tape entry side and outside the stitching machine 1 in the punching tool cassette 80 in a storage position and is protected from possible damage by means of a wear plate 51.
  • the displacement device 60 is provided, which allows a fully automatic tool change.
  • the tool change can preferably be carried out while the belt is running between two stitch seams or when the belt is not running.
  • the first punching tool 20 is transferred out of the punching position 50 and into the storage position.
  • the punching tool cassette 80 is shifted by means of the shifting device 60 so far that the first punching tool 20 is arranged on the strip outlet side, while the second punching tool 30 reaches the punching position 50.
  • a wear plate 71 which protects the first punching tool 20 from possible damage, is also provided on the strip outlet side.
  • the first punching tool 20 is designed to connect the metal strips to one another when their strengths are in a first strength range
  • the second punching tool 30 then being designed to connect the metal strips to one another when their strengths lie in a second strength range, the two strength ranges differing from one another.
  • the first strength range can comprise 20 MPa to 250 MPa and the second strength range 200 MPa to 600 MPa.
  • the first strength range can include, for example, 100 MPa to 350 MPa and the second strength range 300 MPa to 1000 MPa.
  • FIG. 2 a variant of the punching tool cartridge 80 is shown.
  • This comprises a cover plate 81, to which several T-bars 82 are attached.
  • the punching tool cassette 80 is held in the stapling machine 1 and moved over the rack 10 (FIG. 1).
  • the punching tool cassette 80 is moved into the correct end position via stop elements 83 arranged on the cover plate 81, which is queried by a limit switch (not shown).
  • the two punching tools 20, 30 are fastened below the cover plate 81.
  • each of the punches 20, 30 includes a plurality
  • Skids 84 which thread themselves into a lifting slab 11 (FIG. 1), for example when the punching tool cassette 80 is displaced. If the lower tool part of the respective punching tool 20, 30 does not follow the lowering of the lifting slab 11 by gravity after a stapling process, the lower tool part is pulled back into the lower end position by the lifting slab 11 through this connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Punching Or Piercing (AREA)

Abstract

La présente invention concerne une agrafeuse (1) destinée à relier une partie d'extrémité d'une bande métallique sortante à une partie de départ d'une bande métallique entrante pour un système de traitement de bande fonctionnant en continu, comprenant un premier outil de poinçonnage (20), conçu pour relier des bandes métalliques ayant une première plage d'épaisseur et/ou plage de résistance l'une à l'autre, et un second outil de poinçonnage (30), conçu pour relier des bandes métalliques ayant une seconde plage d'épaisseur et/ou plage de résistance l'une à l'autre, les deux plages d'épaisseur et/ou plages de résistance étant différentes l'une de l'autre.
EP21700736.8A 2020-01-16 2021-01-14 Agrafeuse pour métal Active EP4090480B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020200510.9A DE102020200510A1 (de) 2020-01-16 2020-01-16 Heftmaschine
PCT/EP2021/050747 WO2021144394A1 (fr) 2020-01-16 2021-01-14 Agrafeuse

Publications (3)

Publication Number Publication Date
EP4090480A1 true EP4090480A1 (fr) 2022-11-23
EP4090480C0 EP4090480C0 (fr) 2024-11-20
EP4090480B1 EP4090480B1 (fr) 2024-11-20

Family

ID=74187297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21700736.8A Active EP4090480B1 (fr) 2020-01-16 2021-01-14 Agrafeuse pour métal

Country Status (5)

Country Link
US (1) US11931791B2 (fr)
EP (1) EP4090480B1 (fr)
CN (1) CN114945433B (fr)
DE (1) DE102020200510A1 (fr)
WO (1) WO2021144394A1 (fr)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE668721C (de) 1933-11-18 1938-12-09 Fritz Grah Dipl Ing Maschine zum Aneinanderheften von Blechen, Metallbaendern o. dgl.
DE1123879B (de) * 1960-01-05 1962-02-15 Thyssen Huette Ag Verfahren und Anlage zur kontinuierlichen Entzunderung von Breitband in einer Durchlaufbeizanlage
US3114151A (en) 1961-05-25 1963-12-17 Production Machinery Corp Strip stitcher
DE1962129A1 (de) 1969-12-11 1971-06-24 Secor Ab Vorrichtung zum Verbinden von Metallblechbaendern
US3670398A (en) 1970-02-13 1972-06-20 Carl H Minton Method and apparatus for joining strip ends employing a stitcher assembly
IT1124987B (it) 1979-11-16 1986-05-14 Giovanni Giasini Ppocedimento e macchina per l'esecuzione delle giunzioni testa-coda di nastri metallici di spessore sottile
EP0648556B1 (fr) * 1990-05-01 1997-08-27 Amada Company Limited Dispositif de changement de matrice
JP4201094B2 (ja) * 1997-12-26 2008-12-24 村田機械株式会社 プレス機械
EP1504896B1 (fr) * 2001-12-25 2008-12-10 Institute of Technology Precision Electrical Discharge Work's Procede et systeme de production de lamines
JP5474889B2 (ja) * 2011-08-09 2014-04-16 中外炉工業株式会社 ストリップ材接続装置
DE102012108161B4 (de) * 2012-09-03 2016-09-22 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren und Vorrichtung zum Verbinden von Metallbändern
EP2948259A1 (fr) * 2013-01-22 2015-12-02 ANDRITZ Sundwig GmbH Dispositif permettant de relier des produits plats métalliques entrant successivement dans une installation de traitement de bandes

Also Published As

Publication number Publication date
CN114945433B (zh) 2025-05-13
EP4090480C0 (fr) 2024-11-20
US20230064480A1 (en) 2023-03-02
WO2021144394A1 (fr) 2021-07-22
CN114945433A (zh) 2022-08-26
US11931791B2 (en) 2024-03-19
EP4090480B1 (fr) 2024-11-20
DE102020200510A1 (de) 2021-07-22

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