EP1285596B1 - Système de détection et compensation de la rotation latérale d'une forme de chaussure par rapport à une position de blocage prédéterminée utilisé dans une machine de réalisation de chaussures automatique - Google Patents

Système de détection et compensation de la rotation latérale d'une forme de chaussure par rapport à une position de blocage prédéterminée utilisé dans une machine de réalisation de chaussures automatique Download PDF

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Publication number
EP1285596B1
EP1285596B1 EP20010830542 EP01830542A EP1285596B1 EP 1285596 B1 EP1285596 B1 EP 1285596B1 EP 20010830542 EP20010830542 EP 20010830542 EP 01830542 A EP01830542 A EP 01830542A EP 1285596 B1 EP1285596 B1 EP 1285596B1
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EP
European Patent Office
Prior art keywords
shoe
tree
carding
lateral rotation
tool
Prior art date
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Expired - Lifetime
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EP20010830542
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German (de)
English (en)
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EP1285596A1 (fr
Inventor
Davide Ceriani
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Officina Meccanica Bdf SpA
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Officina Meccanica Bdf SpA
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Priority to DE2001617954 priority Critical patent/DE60117954T2/de
Priority to EP20010830542 priority patent/EP1285596B1/fr
Publication of EP1285596A1 publication Critical patent/EP1285596A1/fr
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D37/00—Machines for roughening soles or other shoe parts preparatory to gluing
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D119/00—Driving or controlling mechanisms of shoe machines; Frames for shoe machines

Definitions

  • the present description concerns a system to automatically detect and compensate the slight rotations to which a shoe-tree may be subjected during the locking operation which precedes the automatic shoe manufacturing step - for instance, a carding operation on the shoe bottom - in respect of the position taken up by said shoe-tree during the initial learning operation on a sample shoe-tree.
  • one of the shoe manufacturing steps involves a carding of the shoe bottom in order to suitably roughen its surface and allow to correctly carry out the subsequent step of sticking the sole.
  • the bottom and the vamp of the shoe are mounted onto a support having the desired shape of the shoe being manufactured and called, in this sector, a "shoe-tree”.
  • the shoe-trees - on which the shoe bottoms and vamps have been previously mounted - are locked in position between the clamps of a carding machine and are then automatically machined by a carding tool, normally a brush with steel bristles.
  • a carding tool normally a brush with steel bristles.
  • the carding tool follows a very specific path along the bottom and on the vamp, which path has been previously detected on a sample shoe-tree and memorised in a storage area of the carding machine.
  • the detection on the sample shoe-tree is normally carried out by locking said shoe-tree in the normal working position and by passing, over the area to be carded, an appropriate feeler, the movement of which is detected and memorised by the carding machine, so as to be then exactly reproduced in the movement of the carding tool over the different shoe-trees being inserted, time after time, on the machine.
  • An automatic shoe manufacturing machine of this type is for example disclosed in EP-A-655207.
  • the shoe-tree takes up a slightly inclined position on either sides - for example, an inclination varying between a few tenths of a degree and some degrees - in respect of the position originally taken up by the sample shoe-tree when detecting the machining path.
  • the carding tool is normally caused to operate on the shoe with a constant pressure, thanks to the use of elastic or hydraulic means; thus, if the bottom surface of the shoe were to undergo a slight rotation along the longitudinal axis of the shoe, in respect of the ideal working plane - that is, if one side of the bottom surface of the shoe were to be higher than the opposite side - such a difference in height would actually be compensated by a shorter or longer stroke of the carding tool, pressed against the shoe by said elastic or hydraulic means, so that it always works substantially in the same conditions.
  • said outer edge may have a uniform configuration, and thus a substantially constant height throughout the perimeter of the sole, or else - as it happens more frequently - it can be variously shaped in the different parts of the sole, so as to give to the shoe special aesthetic features, as well as characteristics of stoutness, foot protection, and so on.
  • the object of the present invention is to thus supply an automatic shoe manufacturing machine apt to eliminate the above drawback and prevent faulty machining and, in particular, faulty carding operations, i.e. insufficient or excessive carding, caused by a final positioning of the shoe-tree at the end of the locking operation in the carding machine - in relation to the angular setting in respect of the longitudinal axis - differing from that taken up by the sample shoe-tree used for the initial learning of the machining path.
  • said object is reached by means of an automatic shoe manufacturing machine and, in particular, in a carding machine, as claimed in claims 1-6 and the method of claim 7.
  • the carding machine illustrated on the drawings consists of a guide arm 1, onto which an oscillating arm 2 is hinged in A. On the free end of said arm 2 there is finally fixed a carding tool 3, normally a brush with metal bristles, and the respective driving motor M.
  • the arm 1 is then connected, in known manner, to control and driving means (not shown) which allow to automatically shift the tool 3 according to a desired working path, along a shoe-tree F which is locked in position under the carding tool 3 and on which there are mounted the bottom and the vamp of a shoe being manufactured.
  • a sample shoe-tree When starting to manufacture a new series of shoes of the same type, a sample shoe-tree is first of all locked in position on the shoe manufacturing machine, and a learning operation is carried out on said sample shoe-tree to learn the machining path which the tool 3 will have to perform over the whole series of shoe-trees F of the same type.
  • said shoe-trees F - mounted in succession - are locked in position in the carding machine, it easily happens - as already mentioned in the introductory part of the present description - that the angular setting of the shoe-tree F in respect of the longitudinal axis Y of the shoe, once said shoe-tree has been locked in position, is rotated by an angle ⁇ (fig. 3) in respect of the initial position taken up by the sample shoe-tree during the learning step.
  • an encoder 4 coaxial to the hinge A, is set between the arm 1 and the arm 2 and is fixedly connected to one of said arms, so as to be apt to detect the respective angular displacements thereof, then transmitting the data concerning such displacements to the above control means.
  • the system is thus apt to detect the lateral rotation actually undegone by each single shoe-tree F being manufactured, in respect of the position taken up by the sample shoe-tree, and is apt to accordingly modify the machining path of the carding tool 3 in the subsequent working steps, that is, in particular, in the steps which concern the lateral surface of the vamp.
  • this working step can be preceded by a step exclusively meant to detect the lateral rotation of the shoe-tree, by using a device fully similar to that described heretofore in which the carding tool has been replaced by a common feeler.
  • This last device can also be of the retractable or foldable type and it can be permanently associated to the carding tool, so that it may be possible to use one or the other, according to uses or preferences, with a simple and practical operation.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (8)

  1. Machine de fabrication automatique de chaussure du type comprenant un moyen pour verrouiller l'embauchoir (F) en position, un outil de travail (3) mobile le long dudit embauchoir, et un moyen de commande et d'entraînement pour déplacer ledit outil le long de l'embauchoir suivant un chemin d'usinage prédéterminé sur la base de données mémorisées au préalable dans une zone de stockage dudit moyen de commande, caractérisée en ce que ladite machine de fabrication automatique de chaussure comprend également un système pour détecter et compenser la rotation latérale d'un embauchoir, par rapport à la position de verrouillage initiale d'un embauchoir échantillon, ledit système comprenant un palpeur apte à détecter, après verrouillage de l'embauchoir (F), la rotation latérale dudit embauchoir par rapport à ladite position de verrouillage initiale des embauchoirs échantillons et un moyen de commande apte à modifier le chemin d'usinage de l'outil de travail sur la base des données sur la rotation latérale dudit embauchoir, détectée par ledit palpeur.
  2. Machine de fabrication automatique de chaussure selon la revendication 1, dans laquelle ledit palpeur est associé audit outil de travail (3) et est apte à détecter la rotation latérale de l'embauchoir (F) pendant l'opération effectuée sur la chaussure par ledit outil.
  3. Machine de fabrication automatique de chaussure selon la revendication 2, dans laquelle ledit palpeur se compose de l'outil de travail même (3).
  4. Machine de fabrication automatique de chaussure selon la revendication 3, qui est une machine à carder, et l'opération pendant laquelle la rotation latérale de l'embauchoir (F) est détectée est une opération de cardage sur le fond de la chaussure.
  5. Machine de fabrication automatique de chaussure selon la revendication 4, dans laquelle l'outil de travail (3) de ladite machine à carder se compose d'une brosse rotative avec des poils métalliques.
  6. Machine de fabrication automatique de chaussure selon la revendication 4 ou 5, dans laquelle un bras de support (2) dudit outil de cardage (3) s'articule (en A) sur un bras de guidage (1), un encodeur (4) étant positionné en correspondance de ladite articulation (A) et étant apte à détecter les déplacements angulaires entre lesdits bras (1, 2) et à transmettre lesdites informations audit moyen de commande.
  7. Procédé de fabrication d'une chaussure avec une machine de fabrication automatique de chaussure selon la revendication 6, comprenant un système pour détecter et compenser la rotation latérale d'un embauchoir (F) par rapport à la position de verrouillage initiale d'un embauchoir échantillon, comprenant les étapes suivantes consistant à :
    a) carder la surface inférieure de la chaussure, et
    b) détecter la rotation latérale de l'embauchoir par rapport à ladite position de verrouillage initiale de l'embauchoir échantillon ;

    étapes effectuées simultanément par ledit outil de cardage (3), et les autres étapes suivantes en série consistant à :
    c) retraiter, par ledit moyen de commande, les données stockées concernant le chemin d'usinage de l'outil de cardage (3), sur la base des données sur la rotation latérale détectée pendant l'étape b) ;
    d) effectuer une ou plusieurs opérations successives sur la chaussure sur la base du chemin d'usinage retraité à l'étape c).
  8. Procédé de fabrication d'une chaussure selon la revendication 7, dans lequel les opérations successives effectuées à l'étape d) peuvent être sélectionnées parmi les suivantes : le cardage latéral de la chaussure, l'application d'un adhésif sur la surface cardée inférieure de la chaussure, l'application d'un adhésif sur la surface cardée latérale de la chaussure.
EP20010830542 2001-08-16 2001-08-16 Système de détection et compensation de la rotation latérale d'une forme de chaussure par rapport à une position de blocage prédéterminée utilisé dans une machine de réalisation de chaussures automatique Expired - Lifetime EP1285596B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2001617954 DE60117954T2 (de) 2001-08-16 2001-08-16 Verfahren zur Feststellung und Kompensation der seitlichen Drehung von einem Schuhleisten im Vergleich mit einer vorbestimmten Position in einer automatischen Schuhbearbeitungsvorrichtung
EP20010830542 EP1285596B1 (fr) 2001-08-16 2001-08-16 Système de détection et compensation de la rotation latérale d'une forme de chaussure par rapport à une position de blocage prédéterminée utilisé dans une machine de réalisation de chaussures automatique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20010830542 EP1285596B1 (fr) 2001-08-16 2001-08-16 Système de détection et compensation de la rotation latérale d'une forme de chaussure par rapport à une position de blocage prédéterminée utilisé dans une machine de réalisation de chaussures automatique

Publications (2)

Publication Number Publication Date
EP1285596A1 EP1285596A1 (fr) 2003-02-26
EP1285596B1 true EP1285596B1 (fr) 2006-03-15

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EP20010830542 Expired - Lifetime EP1285596B1 (fr) 2001-08-16 2001-08-16 Système de détection et compensation de la rotation latérale d'une forme de chaussure par rapport à une position de blocage prédéterminée utilisé dans une machine de réalisation de chaussures automatique

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EP (1) EP1285596B1 (fr)
DE (1) DE60117954T2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1472946A1 (fr) * 2003-05-02 2004-11-03 Officina Meccanica B.D.F. S.P.A. Amortisseur à équilibre fluide pour brosse de cardage, dans une machine de cardage de tiges de chaussures
WO2017195044A2 (fr) 2016-02-16 2017-11-16 Eversafe Technologies Limited Système de couverture portatif sécurisé

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866802A (en) * 1988-04-08 1989-09-19 International Shoe Machine Corporation Roughing machine for footware upper assemblies and a system that includes the roughing machine but typically includes as well other machines ahead of and following
FR2690864B1 (fr) * 1992-05-06 1996-10-04 Roger Blanc Tete pour l'equipement d'un robot, destinee a realiser une operation de cardage.
IT230692Y1 (it) * 1993-10-29 1999-06-09 Mec B D F Srl Off Macchina automatica di irruvidimento controllato di un bordo di tomaia

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Publication number Publication date
DE60117954T2 (de) 2006-08-17
EP1285596A1 (fr) 2003-02-26
DE60117954D1 (de) 2006-05-11

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