EP2638984A1 - Unité de pliage - Google Patents

Unité de pliage Download PDF

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Publication number
EP2638984A1
EP2638984A1 EP13155872.8A EP13155872A EP2638984A1 EP 2638984 A1 EP2638984 A1 EP 2638984A1 EP 13155872 A EP13155872 A EP 13155872A EP 2638984 A1 EP2638984 A1 EP 2638984A1
Authority
EP
European Patent Office
Prior art keywords
bending
strip material
guide jaws
unit according
guide
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Withdrawn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
EP13155872.8A
Other languages
German (de)
English (en)
Inventor
Marc Butenuth
Gottfried Schofer
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.)
ELCEDE GmbH
Original Assignee
ELCEDE 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 ELCEDE GmbH filed Critical ELCEDE GmbH
Publication of EP2638984A1 publication Critical patent/EP2638984A1/fr
Withdrawn legal-status Critical Current

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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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/20—Making tools by operations not covered by a single other subclass
    • B21D37/205—Making cutting tools
    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/022—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment over a stationary forming member only

Definitions

  • the invention relates to a bending unit according to the preamble of claim 1.
  • control unit is strip material, which preferably consists of steel strip, bent so that it has a certain contour.
  • the strip material is generally used for the production of knife lines, ie punching knives, which are used for punching out packaging, which in particular consist of cardboard or corrugated cardboard.
  • the knife lines to be produced from the strip material form in a punching form of a punching device a line-shaped punching knife arrangement which corresponds to the contour of the packaging to be punched out.
  • the contour usually has a relatively complex shape, typically with several at certain angles converging straight or curved segments running.
  • the corresponding strip material In order to produce such a complex contour of a knife line, the corresponding strip material must be bent several times. In order to ensure a rational production, the strip material should be able to be bent several times by machine as rationally as possible in a few operations. Furthermore, an essential requirement is to bend the strip material as accurately and reproducibly as possible in order to obtain the desired contour of the knife line. It is particularly necessary to be able to realize different bending radii exactly.
  • the invention has for its object to provide a bending unit, by means of which the requirements mentioned can be met.
  • the bending unit comprises a conveyor unit for conveying strip material to a bending tool, by means of which the strip material is bent.
  • the conveyor unit has two guide jaws, between which the strip material is guided, wherein the guide jaws positioning means are assigned. With the positioning means, a positional adjustment of the guide jaws is performed to position the strip material in a desired position on the bending tool for a bending operation.
  • bending unit according to the invention can be produced in a rational manner from a strip material, which preferably consists of strip steel, by repeatedly bending the strip material at different locations knife lines, ie punching knife, with certain contours, which are then inserted into a die to packaging, the preferably consist of corrugated cardboard or cardboard, to be able to dance.
  • knife lines ie punching knife
  • the conveyor unit thereby promotes the strip material such that successively different locations of the strip material are fed to a bending tool, so that with the bending tool then the strip material can be bent at this point in a defined manner.
  • the bending unit according to the invention has two guide jaws, which can be adjusted by positioning means in position, whereby the stored between the guide jaws band material can be adjusted in position.
  • the point to be bent of the strip material can be positioned exactly in a desired position on the bending tool.
  • the strip material is positioned in a desired position such that the bending process to be performed with the bending tool can be optimally performed.
  • the desired position is chosen so that with the bending tool optimum transfer of force to the strip material, so that it is reproducibly bent at the predetermined location with a precisely defined bending radius.
  • the guide jaws are positionally adjustable on a horizontal bearing surface in a horizontal plane.
  • the strip material is oriented in a vertical plane between flat contact surfaces of the guide jaws.
  • the bending tool is a bending finger whose longitudinal axis extends in the vertical direction, wherein a bending operation takes place by rotating the bending finger about its longitudinal axis.
  • the bending tool oriented in a vertical direction in the form of a bending finger is adapted to the orientation of the band material in a vertical plane, so that the band material is bent over its entire height by a rotational movement of the bending finger.
  • the bending finger or generally the bending tool is arranged stationary, that is, it can only be rotated but not positionver Robinson, resulting in a relatively simple construction of the bending tool.
  • the exact positioning of the strip material required for a reproducible bending process can be performed exactly by the positional adjustability of the guide jaws in one plane, that is, in two spatial directions, whereby the orientation of the strip material is maintained in a vertical plane, that is, there are no unwanted tilting of the Band material relative to the bending tool.
  • the guide jaws are chamfered at their front ends, so that they complement each other to form a wedge, at the front edge of the strip material opens, and that the opening at the leading edge portion of the strip material is positioned for a bending operation in the desired position on the bending tool.
  • the guide jaws are adjusted either individually or simultaneously.
  • the strip material is adjusted by a simultaneous position adjustment of the guide jaws in position.
  • the strip material is positioned in a desired position on the bending tool for performing a bending operation.
  • the leading end of a guide jaw protrudes beyond the front end of the other guide jaw and forms a stop for the strip material when performing a bending operation.
  • the bending unit is part of a device by means of which strip lines for a stamping machine are made of strip material.
  • a cutting edge can be formed on a longitudinal edge of the strip material. Furthermore, so-called breakpoints can then be incorporated into this cutting edge, preferably milled.
  • breakpoints form indentations in the cutting edges of the punching blades. These notches are incorporated at predetermined target positions in the punching knife, the widths and heights are chosen so small that when punching the respective packaging with such punches through the breakpoints remain only small, barely visible webs between the packaging element and the rest of the stamping material, the one Prevent the packaging from falling out of the packaging raw material.
  • An example of such a unit for incorporating breakpoints in a punching knife is in DE 20 2007 018 975 U1 described.
  • FIG. 1 schematically shows an embodiment of the bending unit 1 according to the invention.
  • the bending unit 1 is part of a device by means of which existing strip steel strip material 2 knife lines, that is punching knife for punching of packaging produced.
  • the device contains several modules. With a first module, not shown, a longitudinal edge of the strip material 2 is ground to produce a cutting edge. With a second, not shown module breakpoints are incorporated in this cutting edge.
  • the bending unit 1 forms a third module in which the strip material 2 is bent such that the knife lines produced from the strip material 2 form a predetermined contour in order to punch out a specific packaging.
  • the bending unit 1 comprises a conveyor unit 3, with which the strip material 2 is fed to a bending tool.
  • the conveyor unit 3 has at its front end two guide jaws 4a, 4b, between which the strip material 2 is guided and at the same time fixed in position.
  • the band material 2 is conveyed lying in a vertical plane.
  • the guide jaws 4a, 4b themselves are mounted on a table 5.
  • the table 5 has a planar, oriented in a horizontal plane top, which forms a flat support surface on which the guide jaws 4a, 4b are mounted.
  • the bending tool comprises in the present case a bending finger 6, whose longitudinal axis extends in the vertical direction.
  • the bending finger 6 is mounted with its upper end in a housing 7.
  • the bending finger 6 can be adjusted in the vertical direction, in particular to introduce the lower end in a receptacle 8 in a turntable 9.
  • the turntable 9 has two identical receptacles 8.
  • the turntable 9 is rotatably mounted in the table 5.
  • the contour of the receptacle 8 is adapted to the cross section of the bending finger 6, so that the lower end of the bending finger 6 is free of play or low in play in the receptacle 8.
  • the bending finger 6 has a triangular cross-section.
  • the guide jaws 4a, 4b are identical and arranged mirror-symmetrically to the plane of the strip material 2.
  • the guide jaws 4a, 4b each have a cross section which is constant over their entire height. In the rear, the remaining conveyor unit 3 facing area, the guide jaws 4a, 4b have a constant width.
  • the front ends of the guide jaws 4a, 4b are chamfered. These beveled front ends complement each other to a tapered wedge, wherein at the Leading edge of this wedge, the strip material 3 opens. In the area of the outlet, the strip material 2 is bent with the bending tool.
  • the guide jaws 4a, 4b are arranged position adjustable.
  • the guide jaws 4 a, 4 b, in particular their leading edges, at which the strip material 2 opens, are positioned so that the strip material 2 to be bent is in a desired position relative to the bending tool.
  • a pneumatic device 10 is provided as the first positioning means.
  • a segment of the table 5, on which the guide jaws 4 a, 4 b are stored moved.
  • the guide jaws 4a, 4b arranged thereon are also displaced.
  • the guide jaws 4a, 4b become simultaneous, as in FIG FIG. 3 is moved in the horizontal plane of the top of the table 5, that is, the guide jaws 4a, 4b can in two independent spatial directions (in FIG. 3 with x and y direction designated) are moved.
  • the guide jaws 4 a, 4 b can also be moved relative to one another, for which purpose a further pneumatic unit is provided.
  • FIG. 4 shows, for the relative movement of the guide jaws 4a, 4b, a guide jaw 4b in the longitudinal direction (in FIG. 4 with y-direction) are shifted.
  • the relative displacement is particularly advantageously carried out in two discrete steps, so that only a specific, small number of different relative positions can be set.
  • the guide jaw 4b is pushed with its front end over the guide jaw 4a. This forms the protruding Front end of the guide jaw 4b a stop for the bending operation to be performed with the bending finger 6. With this stop very tight bending radii of the bent strip material 2 can be achieved during the bending process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP13155872.8A 2012-03-12 2013-02-20 Unité de pliage Withdrawn EP2638984A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201210102057 DE102012102057A1 (de) 2012-03-12 2012-03-12 Biegeeinheit

Publications (1)

Publication Number Publication Date
EP2638984A1 true EP2638984A1 (fr) 2013-09-18

Family

ID=47748474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13155872.8A Withdrawn EP2638984A1 (fr) 2012-03-12 2013-02-20 Unité de pliage

Country Status (2)

Country Link
EP (1) EP2638984A1 (fr)
DE (1) DE102012102057A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106694634A (zh) * 2016-11-25 2017-05-24 广东省智能制造研究所 一种钢带折弯装置
CN112238166A (zh) * 2020-10-21 2021-01-19 南京蓝昊智能科技有限公司 一种上压刀可调式折弯机
WO2024028185A1 (fr) * 2022-08-04 2024-02-08 Hans Schröder Maschinenbau GmbH Machine à plier pivotante pour créer un rebord rabattu ouvert sur une tôle et procédé de pliage de tôle
DE102022120095A1 (de) 2022-08-10 2024-02-15 Schaeffler Technologies AG & Co. KG Führungsbacke

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088576A2 (fr) * 1982-03-04 1983-09-14 British United Shoe Machinery Limited Procédés et appareil de fabrication d'outils coupants
US4851518A (en) * 1985-12-23 1989-07-25 Schering Corporation Di and tri-O-acetyl-"O-iso-valeryl-23-O-demycinosyl tylosins, hydrazone derivatives thereof and processes for their preparation
US6094960A (en) * 1999-04-20 2000-08-01 Kane; Kevin Alan Metal strip bending device
WO2007102176A1 (fr) * 2006-03-08 2007-09-13 Pro Form S.R.L. Dispositif et procede de pliage d'un ruban metallique
DE202007018975U1 (de) 2007-03-09 2010-04-15 Elcede Electronics-Laser-Consulting-Engineering-Gmbh Vorrichtung zur Erzeugung von Haltepunkten in einem Stanzmesser

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE535323T1 (de) * 2008-10-17 2011-12-15 Wafios Ag Stützbackenanordnung zum gleitenden seitlichen abstützen von stab- und rohrförmigen werkstücken an biegemaschinen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088576A2 (fr) * 1982-03-04 1983-09-14 British United Shoe Machinery Limited Procédés et appareil de fabrication d'outils coupants
US4851518A (en) * 1985-12-23 1989-07-25 Schering Corporation Di and tri-O-acetyl-"O-iso-valeryl-23-O-demycinosyl tylosins, hydrazone derivatives thereof and processes for their preparation
US6094960A (en) * 1999-04-20 2000-08-01 Kane; Kevin Alan Metal strip bending device
WO2007102176A1 (fr) * 2006-03-08 2007-09-13 Pro Form S.R.L. Dispositif et procede de pliage d'un ruban metallique
DE202007018975U1 (de) 2007-03-09 2010-04-15 Elcede Electronics-Laser-Consulting-Engineering-Gmbh Vorrichtung zur Erzeugung von Haltepunkten in einem Stanzmesser

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106694634A (zh) * 2016-11-25 2017-05-24 广东省智能制造研究所 一种钢带折弯装置
CN112238166A (zh) * 2020-10-21 2021-01-19 南京蓝昊智能科技有限公司 一种上压刀可调式折弯机
CN112238166B (zh) * 2020-10-21 2022-06-14 南京蓝昊智能科技有限公司 一种上压刀可调式折弯机
WO2024028185A1 (fr) * 2022-08-04 2024-02-08 Hans Schröder Maschinenbau GmbH Machine à plier pivotante pour créer un rebord rabattu ouvert sur une tôle et procédé de pliage de tôle
DE102022120095A1 (de) 2022-08-10 2024-02-15 Schaeffler Technologies AG & Co. KG Führungsbacke

Also Published As

Publication number Publication date
DE102012102057A1 (de) 2013-09-12

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