EP2127771B1 - Plieuse - Google Patents

Plieuse Download PDF

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Publication number
EP2127771B1
EP2127771B1 EP08157263A EP08157263A EP2127771B1 EP 2127771 B1 EP2127771 B1 EP 2127771B1 EP 08157263 A EP08157263 A EP 08157263A EP 08157263 A EP08157263 A EP 08157263A EP 2127771 B1 EP2127771 B1 EP 2127771B1
Authority
EP
European Patent Office
Prior art keywords
blade carrier
connecting rods
folding machine
assembly
machine
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.)
Not-in-force
Application number
EP08157263A
Other languages
German (de)
English (en)
Other versions
EP2127771A1 (fr
Inventor
Inaki Xabier Aizpurua Zendoia
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.)
Goiti SCL
Original Assignee
Goiti SCL
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 Goiti SCL filed Critical Goiti SCL
Priority to EP08157263A priority Critical patent/EP2127771B1/fr
Priority to ES08157263T priority patent/ES2397551T3/es
Publication of EP2127771A1 publication Critical patent/EP2127771A1/fr
Application granted granted Critical
Publication of EP2127771B1 publication Critical patent/EP2127771B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21D5/045—With a wiping movement of the bending blade

Definitions

  • the object of the present invention is a folding machine of those used for folding and forming metallic sheets.
  • connecting rod and/or eccentric shaft systems instead of hydraulic actuators are also known.
  • the movement of the connecting rods and of the eccentric shafts is carried out through motors or servomotors and epicyclical reduction.
  • patent US 6,227,028 describes an installation of two opposite folding machines according to an arrangement shown in Figure 11 of said patent.
  • This figure 11 shows how the blade carrier and the presser carriage supporting the movable jaw are driven by means of a motor and connecting rod system.
  • Patent EP 1609543 describes a solution according to which one of the two blades of the blade carrier has a second folding lip or edge; such that this blade extends upwards and downwards. It further describes that for the drive of the blade carrier, the latter has an eccentric shaft 13 connected at the end opposite to that of the blades and furthermore said blade carrier is connected to a vertical bend arm 12a or 12b.
  • the bend arm 12b is attached at one end to a pivot 17 and at the opposite end to an eccentric shaft 14b; whereas the bend arm 12a is attached at one end to an eccentric shaft 16 and at the opposite end to an eccentric shaft 14a.
  • the blade carrier is moved by a kinematic system according to which a closed kinematic chain with five members connected by five kinematic turning pairs is used.
  • a servomotor 15 which, through the connecting rods 16 and 17, is connected to a lever 18 which together with elements 18a and 18b forms a structure like a trident.
  • This solution requires large connecting rods 127.
  • This large size of the connecting rods 127 in addition to involving less robustness and stability, implies transport problems due to a larger volume of the machine and more complex assemblies.
  • the object of the present invention is a folding machine, as defined in the preamble part of claim 1 and known from EP 1 121 996 A2 , having solutions in the movement of the blade carrier and of the presser carriage having the movable jaw.
  • the folding machine is characterized by the technical features of the characterizing part of claim 1.
  • the horizontal movement of the blade carrier is carried out by respective independent drive mechanisms, each of which is formed by a spindle-nut, rack-pinion or connecting rod-crank mechanism, the drive of which is carried out by means of a servomotor and an epicycloidal reducer.
  • both mechanisms act in a synchronized manner.
  • the lower movement of the blade carrier is also carried out by means of mechanical transmission members, specifically by means of respective connecting rod-crank or spindle-nut mechanisms driven by a servomotor and an epicycloidal reducer.
  • the particularity in this case lies in the reduced dimension of the connecting rods which simplifies the transport of the machine as well as its assembly and provides the presser carriage assembly with greater robustness.
  • the reduced dimension of the connecting rods is achieved by the existence in the machine of a horizontal beam supported by a series of columns; which beam is arranged above the blade carrier, defining a fixed support surface in which the parts to which the lower ends of the connecting rods are hinged are assembled; such that this lower hinge point of the connecting rods moves from the lower area of the machine to the upper part, which allows reducing the longitudinal dimension of the connecting rods.
  • the object of the present invention is a folding machine, a machine with these features forming the object of European patent EP 1121996 of the same applicant as the present invention having been shown in Figure 1 .
  • the presser carriage (1) thus pivots by means of the action of the hydraulic cylinders (2), moving the movable jaw (5) closer or further away with respect to the fixed jaw (7).
  • the hydraulic cylinders (2) are coupled, at the free end of their piston, to a horizontal beam (3) forming part of the fixed structure of the machine.
  • the blade carrier (9) incorporating the blades (4 and 6) can move according to a horizontal path on guides (10) by means of the action of a hydraulic actuator formed by a hydraulic cylinder (13).
  • the blade carrier (9) can also pivot with respect to the pin (11) by the action of hydraulic actuators also formed by hydraulic cylinders (8).
  • the folding machine moves the presser carriage (1) by means of connecting rod-crank mechanisms, formed by the connecting rods (17) and the cranks (16).
  • These mechanisms can logically be of the connecting rod-eccentric type.
  • the connecting rods (17) extend to lower bearings (20) in which they are hinged.
  • Each pair of bearings (20) is assembled on a plate (3") resting on respective integral supports (3') of the horizontal beam (3).
  • the horizontal beam (3) is supported by a plurality of columns (19) extending from the beam (3) to the base of the machine.
  • the horizontal beam (3) is thus fixed and when the servomotors (18) act, the pivoting movement of the presser carriage (1) occurs.
  • Folding machines are already known the presser carriage (1) of which is connected to connecting rod-crank mechanisms, but in the known solutions the connecting rods had to have a large dimension in order to extend from the presser carriage (1) to the base of the machine.
  • the connecting rods (17) have a reduced dimension as they only have to extend to the horizontal beam (3), which allows reducing the dimensions of the machine, improving its transport; and offering greater robustness and stability.
  • the novelty of the present invention is the fact that, instead of carrying it out with a single drive means, it now uses a pair of drive mechanisms (20); such that if there is an alignment error between the blade carrier (9) and the assembly formed by the fixed jaw (7) and the movable jaw (5), this error is corrected by actuating either of these two independent mechanisms (20) with an electronic compensation.
  • both mechanisms (20) act in a synchronized manner.
  • the blade carrier (9) has two rear expansions (9') each of which is hinged to a pin (25) assembled between respective plates (26) arranged on a base (27) which, by means of guide-carriages (24) can move on horizontal guides (10).
  • Each spindle (23) and motor (21) assembly forms one of the two drive mechanisms (20) for horizontally driving the blade carrier (9).
  • the blade carrier (9) can pivot with respect to the pins (25) by the action of a mechanism providing the vertical drive of the blade carrier (9) .
  • the vertical drive is provided by means of respective connecting rod-crank mechanism assemblies.
  • Each assembly is formed by a connecting rod (28), hingedly attached at its upper end to the lower part of the blade carrier (9) and at its lower end to cranks (29) moved by a pin (30) driven by a servomotor (32) and epicycloidal reducer (31) assembly.
  • FIGs 6 , 7 and 8 show a folding machine like that of Figures 2 , 3 , 4 and 5 but in which now each of the two drive mechanisms (20) for horizontally driving the blade carrier (9) is formed by a rack-pinion transmission, in which a servomotor (36) moves a pinion (34) engaged to a rack (33) through an epicycloidal reducer (35).
  • Figure 9 is another possible practical embodiment variant in which the horizontal movement of the blade carrier (9) is again provided by means of two rack (33) and pinion (34) mechanisms (20), but the vertical movement is achieved by means of spindles (37) moved by a motor (39) directly coupled to a pulley (38). A reducer could again be inserted between the spindle (37) and the motor (39) in this case and if necessary.
  • Figures 10 , 11 and 12 show two other possible practical embodiment variants.
  • a folding machine in which both the horizontal movements of the blade carrier (9) and the vertical movements are achieved by means of spindles (23 and 37) is shown in the first of these embodiments. It must be pointed out that the spindles (23 and 37) depicted in the different figures are of the rotating nut type, but can also be of the fixed nut type.
  • the machine depicted in Figures 11 and 12 has the blade carrier (9) connected to connecting rod (28)-crank (29) mechanisms for its vertical movement.
  • the different reducers (31, 35 and 42) may or may not be of the epicycloidal type.

Landscapes

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

Claims (4)

  1. Plieuse comprenant un porte-lame (9) qui présente des extensions arrières respectives (9'), chacune étant couplée par un axe d'articulation (25) à un mécanisme respectif (20), dont l'actionnement provoque un mouvement horizontal du porte-lame (9) ; de sorte que ce mouvement horizontal soit fourni à l'aide de deux mécanismes indépendants (20) agissant indépendamment pendant l'alignement du porte-lame (9) et de manière synchronisée dans la phase de travail du porte-lame (9) ; et des bielles (17) avec une dimension longitudinale réduite s'étendent entre un chariot presseur (1) et une poutre horizontale fixe (3) disposée à la partie supérieure de la machine pour l'entraînement dudit chariot presseur (1), caractérisée en ce que les bielles (17) avec une dimension longitudinale réduite sont groupées selon deux paires, dans lesquelles des manivelles (16) ou des excentriques sont relié(e)s dans chaque paire de bielles (17), lesquelles manivelles ou excentriques sont assemblé(e)s en une broche (15) déplacée par un ensemble de servomoteur (18) et de réducteur (14).
  2. Plieuse selon la revendication 1, caractérisée en ce que chacun des deux mécanismes d'entraînement (20) pour l'entraînement horizontal du porte-lame (9) est formé par un ensemble de moteur (21) et de broche (23) ou un ensemble de crémaillère (33) et de pignon (34) ou un ensemble de manivelle/excentrique (41) et de bielle (40).
  3. Plieuse selon la revendication 1 ou 2, caractérisée en ce que les broches (15) alignées horizontalement les unes avec les autres sont disposées sur la partie supérieure de la machine, leur extrémité intérieure étant libre et l'extrémité extérieure étant reliée au réducteur (14).
  4. Plieuse selon l'une quelconque des revendications 1 à 3, caractérisée en ce que la poutre horizontale (3) est fixée à l'extrémité supérieure d'une série de colonnes verticales (19), fixées au niveau de leur extrémité inférieure à la base de la machine, ladite poutre horizontale (3) présentant sur son plan supérieur des parties porteuses (3' et 3") supportant les paliers de l'extrémité inférieure des bielles (17).
EP08157263A 2008-05-30 2008-05-30 Plieuse Not-in-force EP2127771B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08157263A EP2127771B1 (fr) 2008-05-30 2008-05-30 Plieuse
ES08157263T ES2397551T3 (es) 2008-05-30 2008-05-30 Máquina paneladora

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08157263A EP2127771B1 (fr) 2008-05-30 2008-05-30 Plieuse

Publications (2)

Publication Number Publication Date
EP2127771A1 EP2127771A1 (fr) 2009-12-02
EP2127771B1 true EP2127771B1 (fr) 2012-10-17

Family

ID=40872442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08157263A Not-in-force EP2127771B1 (fr) 2008-05-30 2008-05-30 Plieuse

Country Status (2)

Country Link
EP (1) EP2127771B1 (fr)
ES (1) ES2397551T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVR20110232A1 (it) * 2011-12-22 2013-06-23 Finn Power Italia S R L Meccanismo di movimentazione a motori indipendenti per gruppo portalame di macchina pannellatrice
ITMI20121583A1 (it) 2012-09-24 2014-03-25 Salvagnini Italia Spa Macchina pannellatrice a lama orientabile.
EP3135393B1 (fr) * 2015-08-26 2018-03-14 CIDAN Machinery Sweden AB Mécanisme de transmission excentrique destiné à une machine de pliage
CN112207168A (zh) * 2020-10-23 2021-01-12 南京邮电大学 一种折边机折边梁驱动机构

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3432641B2 (ja) 1995-06-28 2003-08-04 株式会社アマダ 板材曲げ加工機
FR2750626B1 (fr) 1996-07-05 1999-01-29 Jeandeaud Jean Claude Dispositif permettant d'adapter la taille d'un serre-flan de machine-outil
IT1301939B1 (it) 1998-07-27 2000-07-20 Unimatic Engineering S R L Macchina pressa-piegatrice universale
ES2190298B1 (es) 2000-01-31 2004-10-16 Goiti, S.Coop Maquina plegadora de chapas metalicas.
ES2209594B1 (es) * 2002-01-29 2005-06-01 Goiti, S. Coop. Maquina paneladora automatica.
DE60336762D1 (de) 2003-02-06 2011-05-26 Kyowa Machine Co Ltd Plattenbiegemaschine
EP1819457B1 (fr) 2004-10-22 2009-02-18 Finn-Power OY Systeme cinematique assurant le deplacement des tetes de travail de machines utilisees pour le formage et le cintrage de toles metalliques

Also Published As

Publication number Publication date
ES2397551T3 (es) 2013-03-07
EP2127771A1 (fr) 2009-12-02

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