EP0684094A1 - Abkantpresse - Google Patents

Abkantpresse Download PDF

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Publication number
EP0684094A1
EP0684094A1 EP95401221A EP95401221A EP0684094A1 EP 0684094 A1 EP0684094 A1 EP 0684094A1 EP 95401221 A EP95401221 A EP 95401221A EP 95401221 A EP95401221 A EP 95401221A EP 0684094 A1 EP0684094 A1 EP 0684094A1
Authority
EP
European Patent Office
Prior art keywords
sidewall
clamp
bed base
articulation assemblies
articulation
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Withdrawn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
EP95401221A
Other languages
English (en)
French (fr)
Inventor
Michel Goubaud
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0684094A1 publication Critical patent/EP0684094A1/de
Withdrawn legal-status Critical Current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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
    • B21D5/042—With a rotational movement of the bending blade

Definitions

  • the present invention relates generally to bending machines, that is to say machines or apparatus making it possible to bend any sheet of metal.
  • These folding machines usually include a box spring, sometimes called a lower bed base, which, forming a frame, is fixed, a sidewall, sometimes called an upper bed base, which, articulated to the bed base by at least two articulation assemblies distant from one other, is movable between an open position for which it is spaced from the base and a closed position for which it is on the contrary applied to the latter, and locking means suitable for locking the sidewall in the position of closing.
  • a box spring sometimes called a lower bed base, which, forming a frame, is fixed
  • a sidewall sometimes called an upper bed base
  • locking means suitable for locking the sidewall in the position of closing.
  • box spring and the sidewall are in the form of elongated beams, to be able to allow the processing of metal sheets of relatively great length.
  • flank clamp With a tensioner making it possible to confer in advance, by camber, to this flank clamp, a counter-jib which, when closed, makes it possible to obtain , between the two articulation assemblies, correct tightening of the metal sheet to be bent.
  • this tensioner can prove to be ineffective when the sidewall has great rigidity, or, in other words, a large transverse moment of inertia, and this is the case, in particular, if it consists of a section profile with box cross section.
  • the present invention generally relates to a provision making it possible to avoid these drawbacks.
  • a folder of the kind comprising a bed base, which, forming a frame, is fixed, a sidewall, which, articulated to the bed base by at least two articulation assemblies distant from one other, is movable between an open position for which it is spaced from the bed base and a closed position for which it is on the contrary applied to the latter, and locking means suitable for locking the flank clamp in the position of closure,
  • this folding machine being generally characterized in that, jointly, the articulation assemblies are established at a distance from the ends of the sidewall clamp, there is associated locking means with each of them, and, beyond each of the articulation assemblies relative to the space which they delimit, there is provided, between the sidewall and the box spring, a wedge.
  • this wedge is carried by the clamp.
  • the locking means associated with each of these articulation assemblies press on the sidewall in the direction for which, between the two articulation sets, they urge this sidewall, and therefore, in particular, the middle part thereof, in the direction of the bed base.
  • the folder 11 implemented for this purpose comprises, overall, a base 12, which, forming a frame, is fixed, a sidewall 13, which, articulated to the base 12 by at least two sets of articulation 14 distant from each other by a distance D, is movable between an open position, shown schematically in broken lines in Figure 4 and shown in solid lines in Figure 5, for which it is spaced from the bed base 12, and a closed position, shown in solid lines in FIG. 4 and in FIGS. 6 and 7, for which it is, on the contrary, applied to this bed base 12, and, according to methods described in more detail later, means for locking 15 specific to locking the sidewall clamp 13 in the closed position.
  • the bed base 12 and the sidewall clamp 13 are each formed by a section of section with a box cross section.
  • this bed base 12 and this sidewall clamp 13 have the same length L3.
  • the sidewall 13 forms, along its front longitudinal edge 16, a relatively tapered spout 17.
  • the bed base 12 also has, overall, a trapezoidal cross section.
  • an apron 19 is articulated by an axis 20 to the base 12, along the front longitudinal edge 21 thereof.
  • a groove 24, for housing a retaining strip 25 made of synthetic material In the embodiment shown, on the lower surface of the short sidewall 13, longitudinally, close to its front longitudinal edge 16, a groove 24, for housing a retaining strip 25 made of synthetic material.
  • a groove 26, for housing a retaining strip 27 made of synthetic material is provided on the upper surface of the base 12, short, longitudinally, near its front longitudinal edge 21, a groove 26, for housing a retaining strip 27 made of synthetic material.
  • Each of the articulation assemblies 14 implemented comprises, on the back of the base 12, a C-shaped console 28, which, at one of its ends, is secured to a sole 29 by which it is attached, for example to using screws 30, on the rear face of this box spring 12, and which, by its other end, overhangs the clamp 13.
  • this C-shaped console 28 is formed by a flange which, suitably cut, extends generally transversely with respect to the bed base 12 and the sidewall clamp 13.
  • Each of the articulation assemblies 14 implemented comprises, in addition, on the back of the sidewall clamp 13, an arm 32, which, secured to a sole 33 by which it is attached, for example by means of screws 34 , on the rear face of this sidewall 13, is articulated by a pin 35 to the associated C 28 console, in the middle part thereof.
  • this arm 32 is formed of a flange which, suitably cut, extends transversely with respect to the sidewall clamp 13 and the bed base 12.
  • the arm 32 is extended forward by a finger 36 which, by a sole 37, is secured to the upper surface of the sidewall clamp 13, for example using screws 38.
  • the articulation assemblies 14 are established at a distance from the ends of the sidewall clamp 13, there is associated locking means 15 with each of them, and, beyond each of the assemblies d hinge 14 relative to the space which they delimit, there is provided, between the sidewall 13 and the base 12, a wedge 40.
  • the distance D between these two articulation assemblies 14 is less than the length L3 of the base 12 and of the sidewall clamp 13, and, according to the invention, provision is made on either side of these assemblies articulation 14, between the sidewall 13 and the base 12, a wedge 40.
  • this wedge 40 extends from the front longitudinal edge 16 of the sidewall clamp 13, transversely relative to this sidewall clamp 13, and it is installed at the end of it.
  • each of the two shims 40 used is in the form of a parallelepiped plate.
  • each of these two wedges 40 is attached to the sidewall clamp 13, on the lower surface thereof, for example using screws 41.
  • the thickness E2 of the shims 40 is chosen to be in any event greater than that E1 of the metal sheets 10 capable of being treated.
  • this thickness E2 is of the order of 3 to 5 mm.
  • the shims 40 extend over at least part of the width of the sidewall clamp 13.
  • the width L5 of the shims 40 that is to say the dimension along which these shims 40 extend along the length of the sidewall clamp 13 and the bed base 12, can be reduced.
  • this width L5 is of the order of 10 to 15 mm.
  • the locking means 15 associated with each of the articulation assemblies 14 are toggle locking means.
  • first connecting rod 42 which, formed of twin flanges framing the corresponding C 28 console, is articulated by an axis 43 thereto
  • second connecting rod 44 which, articulated by an axis 45 to the preceding rod 42, is also articulated by an axis 46 to the finger 36 of the arm 32 of the sidewall clamp 13.
  • the connecting rod 44 is adjustable in length, comprising for example for this purpose a threaded rod 47.
  • a compensating spring 48 coupled, at one of its ends, to the C-shaped console 28 of the bed base 12, and, at the other of its ends, to the arm 32 of the hold-down 13.
  • the connecting rods 42 of the two locking means 15 are connected to each other by a bar 49, which runs parallel to the side clamp 13, and which, for handling the assembly, is provided with a handle 50 in its middle area.
  • the metal sheet 10 to be folded is inserted between the sidewall clamp 13 and the bed base 12 while, as shown diagrammatically in broken lines in FIG. 4, the sidewall clamp 13 is in the open position, and, by pivoting forwards of the handle 50, according to the arrow F1 in FIG. 4, the sidewall clamp 13 is tilted in the closed position, according to the arrow F2 in this FIG. 4.
  • the locking means 15 then act on the sidewall 13 in a direction for which, having regard to the support provided as a corollary by the wedges 40 implemented according to the invention , they urge this sidewall 13 in the direction of the base 12 at any point of this sidewall 13 between the articulation assemblies 14, and therefore, in particular, in its median zone.
  • this metal sheet 10 can advantageously pass right through, over its entire length, the folder 11, without being hindered by the articulation assemblies 14 thereof.
  • the shims used could just as easily be attached to the bed base and / or they could be longitudinally profiled and / or be longitudinally and / or transversely split.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP95401221A 1994-05-26 1995-05-24 Abkantpresse Withdrawn EP0684094A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9406364 1994-05-26
FR9406364A FR2720304B1 (fr) 1994-05-26 1994-05-26 Plieuse.

Publications (1)

Publication Number Publication Date
EP0684094A1 true EP0684094A1 (de) 1995-11-29

Family

ID=9463518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95401221A Withdrawn EP0684094A1 (de) 1994-05-26 1995-05-24 Abkantpresse

Country Status (2)

Country Link
EP (1) EP0684094A1 (de)
FR (1) FR2720304B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3005589A1 (fr) * 2013-05-14 2014-11-21 Participations G Machine pour le pliage d'un flan
CN121339267A (zh) * 2025-12-19 2026-01-16 株洲旭森科技有限公司 一种用于钽壳成型的数控冲压设备及冲压成型工艺

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1892622U (de) * 1964-02-28 1964-05-14 Keeton Sons Falz- oder biegevorrichtung.
DE2310488A1 (de) * 1972-03-20 1973-10-04 Houdaille Industries Inc Doppel-biegevorrichtung
DE2729851A1 (de) * 1976-07-01 1978-01-05 Jany Delage Biegepress- und falzvorrichtung fuer baustellen zur herstellung von zink-baubeschlaegen
FR2444517A1 (fr) 1978-12-20 1980-07-18 Goubaud Michel Plieuse, en particulier pour travaux de zinguerie sur les chantiers
US4557132A (en) 1984-02-03 1985-12-10 Tapco Products Company, Inc. Sheet bending brake

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1892622U (de) * 1964-02-28 1964-05-14 Keeton Sons Falz- oder biegevorrichtung.
DE2310488A1 (de) * 1972-03-20 1973-10-04 Houdaille Industries Inc Doppel-biegevorrichtung
DE2729851A1 (de) * 1976-07-01 1978-01-05 Jany Delage Biegepress- und falzvorrichtung fuer baustellen zur herstellung von zink-baubeschlaegen
FR2444517A1 (fr) 1978-12-20 1980-07-18 Goubaud Michel Plieuse, en particulier pour travaux de zinguerie sur les chantiers
US4557132A (en) 1984-02-03 1985-12-10 Tapco Products Company, Inc. Sheet bending brake

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3005589A1 (fr) * 2013-05-14 2014-11-21 Participations G Machine pour le pliage d'un flan
CN121339267A (zh) * 2025-12-19 2026-01-16 株洲旭森科技有限公司 一种用于钽壳成型的数控冲压设备及冲压成型工艺

Also Published As

Publication number Publication date
FR2720304B1 (fr) 1996-08-30
FR2720304A1 (fr) 1995-12-01

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