EP2292345B1 - Ejecteur pour un outil d'emboutissage - Google Patents

Ejecteur pour un outil d'emboutissage Download PDF

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Publication number
EP2292345B1
EP2292345B1 EP10382212.8A EP10382212A EP2292345B1 EP 2292345 B1 EP2292345 B1 EP 2292345B1 EP 10382212 A EP10382212 A EP 10382212A EP 2292345 B1 EP2292345 B1 EP 2292345B1
Authority
EP
European Patent Office
Prior art keywords
die
graphical element
deep drawing
ejectors
deep
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.)
Active
Application number
EP10382212.8A
Other languages
German (de)
English (en)
Other versions
EP2292345A1 (fr
Inventor
Enrique Sanchez Casadevall
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.)
Industrias Samart SA
Original Assignee
Industrias Samart SA
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 Industrias Samart SA filed Critical Industrias Samart SA
Publication of EP2292345A1 publication Critical patent/EP2292345A1/fr
Application granted granted Critical
Publication of EP2292345B1 publication Critical patent/EP2292345B1/fr
Active 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
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/02—Ejecting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/02—Dies; Accessories
    • B44B5/026—Dies

Definitions

  • the invention relates to a die ejector for deep drawing press according to the preamble of claim 1, providing the function for which they are intended with novelty features and advantages which improve those already known on the market for the same purpose.
  • the object of the invention is focused on die ejectors for deep drawing by means of pressure, especially dies of the type intended, suitably positioned in a compression element, for deep drawing license plates and/or similar elements, which incorporate a series of thickened portions or flanges which substantially improve the effectiveness thereof.
  • both parts of the die must be separated, for which one of them has the so-called ejectors, formed by elements or bodies made of polyurethane which facilitate said operation, preventing both parts of the die from being adhered or hooked to the plate during the application of the pressure.
  • these ejectors are located in the area perimetric to the cavity or flanges, i.e., externally to the graphical element, causing the drawback that, when the press applies pressure thereon, there are marks in the plate around the graphical elements, which are obviously anti-aesthetic.
  • the applicant himself is the proprietor or a utility model with number U200600425, which relates to die ejectors for deep drawing press, in which said ejectors are formed by small independent elements suitable for being incorporated or inserted inside the hollow area created especially for such purpose in the central area of the male part of the die, adapting to the different shapes that said graphical element has in each case, which elements furthermore have at their upper part a flange or lug intended to absorb the pressure exerted by the press.
  • the objective of the present invention is therefore to develop a new type of improved ejectors which solve the drawbacks described above in a practical manner, allowing a much quicker and simpler placement thereof in the die and improving the effectiveness at the time of removing the plate after the deep drawing operation.
  • the ejectors proposed with the present invention are formed from a body made of polyurethane, rubber or any other elastic material which, adopting the configuration of the graphical element to be deep drawn to allow the placement thereof in the hollow of said graphical element in the female part of the die, have on their upper surface a plurality of longitudinal flanges separated from one another, preferably in an equidistant manner, and preferably identical, which are always arranged with the same orientation and in a horizontal position, i.e., parallel with respect to the horizontal axis of the graphical element to be deep drawn.
  • said flanges consist of elevations on the ejector part, all of them arranged in same horizontal direction, they facilitate to a great extent the extraction of the license plate, because since the latter is generally a rectangular landscape plate, more long than wide, it can be extracted in the same direction of the mentioned flanges, the time invested in such operation being advantageously reduced, which logically affects the final cost of the product. Furthermore, even though the plate to be deep drawn presents any other configuration, knowing the horizontal orientation of the mentioned flanges of the ejectors, the operator will speed up the operation of extracting the plates to a great extent.
  • the described improved die ejectors for deep drawing press therefore represent an innovative structure with structural and constitutive features unknown up until now for such purpose, which reasons, added to their practical usefulness, provide them with sufficient grounds for obtaining the exclusivity privilege which is sought.
  • the ejectors in question are formed from a body (1) made of polyurethane, rubber or any other elastic material which, adopting the configuration of the graphical element (2) to be deep drawn, is incorporated in the hollow of said graphical element in the female part (3) of the die, which normally consists of said female part and another male part (4) in which the same graphical element (2) is made inversely in relief.
  • a plurality of longitudinal flanges (5) in the upper surface of said body (1) is contemplated, which flanges are arranged separated from one another, preferably in an equidistant manner, all of them preferably being identical in shape and size and arranged such that all of them have the same orientation, said orientation being horizontal, i.e., parallel with respect to the horizontal axis (2a) of the graphical element (2) to be deep drawn.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Claims (3)

  1. Éjecteur de moule pour presse d'emboutissage, du type destiné à faciliter le découplage de la plaque à emboutir et de la pièce femelle (3) et de la pièce mâle (4) formant le moule, formé par des pièces en polyuréthane, caoutchouc ou un autre matériel élastique qui, étant du type formé par un corps (1) adoptant la configuration de l'élément graphique (2) à être embouti et approprié pour être incorporé dans le creux dudit élément graphique pourvu dans la pièce femelle (3) de l'éjecteur, caractérisé en ce que la surface supérieure dudit corps (1) comprend une pluralité de rebords longitudinaux (5) consistant en des élévations sur ladite surface supérieure dudit corps (1), qui sont arrangés séparés les uns des autres de façon à ce qu'ils aient tous la même orientation, ladite orientation étant horizontale, c'est-à-dire, parallèle par rapport à l'axe horizontal (2a) de l'élément graphique (2) à être embouti.
  2. Éjecteur de moule pour presse d'emboutissage amélioré selon la revendication 1, caractérisé en ce que les rebords longitudinaux (5) du corps (1) sont arrangés de façon équidistante les uns des autres.
  3. Éjecteur de moule pour presse d'emboutissage amélioré selon la revendication 1, caractérisé en ce que les rebords longitudinaux (5) du corps (1) sont tous identiques en forme et en taille.
EP10382212.8A 2009-08-05 2010-07-30 Ejecteur pour un outil d'emboutissage Active EP2292345B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200930352U ES1070816Y (es) 2009-08-05 2009-08-05 Expulsores de matriz para embuticiones por presion perfeccionados

Publications (2)

Publication Number Publication Date
EP2292345A1 EP2292345A1 (fr) 2011-03-09
EP2292345B1 true EP2292345B1 (fr) 2015-09-09

Family

ID=41202373

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10382212.8A Active EP2292345B1 (fr) 2009-08-05 2010-07-30 Ejecteur pour un outil d'emboutissage

Country Status (2)

Country Link
EP (1) EP2292345B1 (fr)
ES (2) ES1070816Y (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2191952B1 (fr) * 1972-07-12 1975-06-13 Halfon Pierre
FR2541914B1 (fr) * 1983-03-02 1985-12-20 Essarauto 2000 Outillage d'estampage de chiffres et lettres sur des plaques, notamment pour la confection de plaques d'immatriculation
US4741197A (en) * 1986-04-25 1988-05-03 Aluminum Company Of America Ejection of superplastically formed part with minimum distortion
FR2636867B3 (fr) * 1988-09-27 1990-12-07 Bornarel Guy Outillage d'emboutissage et de decoupe a ejecteurs elastiques

Also Published As

Publication number Publication date
EP2292345A1 (fr) 2011-03-09
ES1070816U (es) 2009-10-30
ES1070816Y (es) 2010-01-28
ES2554656T3 (es) 2015-12-22

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