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EP0962159B1 - Machine d'assemblage d'une chaussure à points de repère visuels programmables - Google Patents

Machine d'assemblage d'une chaussure à points de repère visuels programmables Download PDF

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Publication number
EP0962159B1
EP0962159B1 EP99201694A EP99201694A EP0962159B1 EP 0962159 B1 EP0962159 B1 EP 0962159B1 EP 99201694 A EP99201694 A EP 99201694A EP 99201694 A EP99201694 A EP 99201694A EP 0962159 B1 EP0962159 B1 EP 0962159B1
Authority
EP
European Patent Office
Prior art keywords
machine
accordance
shoe
positions
footwear
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.)
Expired - Lifetime
Application number
EP99201694A
Other languages
German (de)
English (en)
Other versions
EP0962159A3 (fr
EP0962159A2 (fr
Inventor
Paolo Marazzi
Luciano Mercalli
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.)
Officine Meccaniche Cerim SpA
Original Assignee
Officine Meccaniche Cerim SpA
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 Officine Meccaniche Cerim SpA filed Critical Officine Meccaniche Cerim SpA
Publication of EP0962159A2 publication Critical patent/EP0962159A2/fr
Publication of EP0962159A3 publication Critical patent/EP0962159A3/fr
Application granted granted Critical
Publication of EP0962159B1 publication Critical patent/EP0962159B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D11/00—Machines for preliminary treatment or assembling of upper-parts, counters, or insoles on their lasts preparatory to the pulling-over or lasting operations; Applying or removing protective coverings
    • 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
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00—Lasting machines

Definitions

  • the present invention relates to a footwear assembly machine equipped with means for supplying programmable visual reference marks useful for correct positioning of the upper in the work station.
  • reference marks are used for correctly forming the throat of the shoe so as to have production uniformity especially of the right and left shoes of the same pair.
  • Wrong positioning of the upper involves differences between the original model and the shoe produced and dissymetry of the right and left shoes of the same pair which is more serious.
  • the general purpose of the present invention is to overcome the above shortcomings by making available an assembly machine which would permit accurate and rapid configuration of the throat of shoes of different size and whether right or left.
  • a footwear assembly machine comprising a work station receiving a shoe-tree on which is positioned an upper and light projectors projecting luminous reference marks on the upper in the work station characterized in that the projectors are powered to move on command the luminous reference marks projected with control means commanding movement of the projectors to direct each luminous reference mark towards a predetermined position upon reception of a preparation signal.
  • a footwear assembly machine indicated as a whole by reference number 10 comprises a work station 11 receiving a shoe last 12 on which an upper is positioned. Above the work station is arranged a unit 13 for controlled projection of luminous reference marks on the upper in the work station.
  • the unit can be made up of a plurality of projectors 34.
  • each projector 34 is powered to move the projected luminous reference mark on command.
  • Control means 14 control the machine functions.
  • the control means comprise command means 21 which upon reception of a preparation signal 16 command movement of the projectors to direct each luminous reference mark towards a predetermined position.
  • the control means comprise memory means 15 to memorize a plurality of predetermined positions which can be selected by means of the selection control 16.
  • the machine can comprise means 17 for input of the shoe size of the upper received in the work station so that the selection command input is dependent upon on the shoe size input.
  • Input of the number can be manual and performed by the operator by means of a keyboard 18 when he loads another shoe-tree in the machine or advantageously automatic. In the latter case the machine comprises known means 19 for direct measuring of the shoe size of the upper on the shoe-tree.
  • the manual selection means 18 can be provided e.g. by a keyboard.
  • shoe type input means 17 which in turn emit the selection command according to the shoe type input.
  • the shoe type input means comprise a known sensor 20 for automatic detection of the right or left shoe arranged in the work station.
  • the type input means can also be manual 18.
  • the control device 21 recovers from the memory 15 the positions requested for the projectors and commands movement of the projectors to reach those positions.
  • the projectors thus project in the predetermined positions on the shoe last in the station the luminous reference marks which the operator can follow to command pulling of the grasping clamps 22 of the machine by means of known controls 33 so as to provide correct shaping of the shoe throat.
  • Fig. 2 shows diagrammatically a plan view of the shoe last 12 in the work station with a mounted upper 23 grasped by the clamps 22 and with reference marks 24 projected.
  • the luminous reference marks are advantageously three in number with each in the form of a cross and two in opposite side zones of the upper and one in a front zone of the upper. This has been found useful for rapid and correct stretching and positioning of the upper by supplying to the operator a side and front references during the operation.
  • Fig. 2 shows in broken lines the configuration the upper is to reach.
  • the machine can be placed through a control 25 in learning condition during which it is possible to program the various luminous reference mark positions selectable.
  • manual projector movement means 26 for bringing the reference marks into position on a reference shoe last which is mounted in the work station.
  • memorization control means 28 handling permits memorization of these positions in the memory 15. This can be repeated for all the possible desired positions which will be selected by the selection means 17 during normal machine operation.
  • calculation means 29 which calculate the plurality of predetermined positions starting from a few sample positions e.g. a smallest and a laregest position input for each projector and corresponding to the smallest and largest shoe sizes which will be mounted on the machine.
  • the system automatically calculates the specular positions for a corresponding left or right shoe by means of overturning.
  • Another control 32 commands the calculation means to calculate the intermediate values.
  • the various controls 18, 25, 28 and 30 to 33 can be grouped on a single keyboard.
  • the machine 10 comprises means 49, 50, 51 for detecting the real position of the shoe in the work station.
  • the detection means produce a position signal for the corresponding correction of the luminous reference mark positions so that they always fall in the right position in relation to the shoe.
  • the detection means comprise a rear presser 49 movable by means of a powered carriage 50 to rest against the rear part of the footwear in the work stations.
  • a sensor 51 detects the absolute position of the presser in its movement towards the footwear and sends to the control device 14 a correction signal 52.
  • the control system calculates the exact position of the footwear in the station and corrects the absolute position of the luminous reference marks to arrange itself in the exact reference positions in relation to the footwear.
  • the system expects to find the rear presser in a predetermined position. If it does not it corrects the position of the projectors or the tip projector for the difference between the theoretical and the real positions.
  • the presser detects that the footwear is arranged e.g. 5mm behind the projector position memorized in the memory 15 the control device corrects the real projector position or only the tip projector position.
  • Fig. 3 shows an embodiment of a projector 34 which has been found particularly advantageous.
  • the projector comprises a projection member 35 for projection of the luminous reference mark along a projection axis 36.
  • the projection member is supported on a base 37 to be rotatable around an axis 38 transversal to the projection axis upon command of a gear motor 39 so as to move the projected luminous reference mark along a straight line.
  • the gear motor 39 commands movement of the projection member 35 against the thrust of a spring 40 through a thrust screw 41 rotated by the gear motor 39 to screw into the fixed support 37 and project therefrom to rest on the projection member 35 with its free thrust end 42.
  • Coupling between the screw 41 and the gear motor 39 is secured with a running joint 43 made up of pins 44 rotated by the gear motor and engaged in an axial running manner in a gear 45 supported axially on the screw 41.
  • the gear 45 engages an encoder 46 which supplies a measurement which is a function of the position of the projected luminous reference mark.
  • the encoder supplies feedback to the control means 21 which control the gear motor 39.
  • Fig. 4 shows the arrangement of the three projectors 34 in the projection unit 13 to have the movement of the side reference marks in a direction 47 transverse to the longitudinal axis of the footwear and the front reference movement in direction 48 parallel to the longitudinal axis of the footwear.
  • Figures 5 to 7 show a particularly advantageous variant embodiment indicated with reference number 113.
  • the central projector is provided virtually as already explained for embodiment 13.
  • the central projection member 135a is supported and hinged at 138a to a plate 137.
  • An actuator made up of a motor 139 and a transmission with running joint 143 pushes with a thrust screw setscrew 141 on an intermediate movable plate 160 on which is constrained the projection member for execution of the inclination of the projected beam.
  • the side projectors are also made up of projection members 135b pivoted at 138b to incline the motors 139 upon command by means of transmissions 143.
  • the side projectors are supported on the intermediate plate 160 of the central projector.
  • the longitudinal distance of the central projector grid from the side projector grids does not vary with the movement of the central projector because the side projectors incline therewith.
  • the transverse position of the side grids is adjustable by means of respective motors 139 as described for the previous embodiment.
  • the retraction encoders 46 are not shown.
  • the projector handling means could be different from those shown just as the known structure of the assembly machine could be different in accordance with specific practical needs.
  • the side-projector movement only in the direction transverse to the axis of the footwear was found sufficient, if preferred the projectors could be provided to move with other trajectories e.g. along two orthogonal axes.
  • the machine control means could comprise an electronic system virtually provided in accordance with the prior art either with hard-wired logic or advantageously by a microprocessor.
  • a sensor 53 (Fig. 1) could be provided to detect the positioning of the shoe in the machine and command movement of the projectors to correct the relative positioning differences.
  • This sensor 53 could comprise e.g. an adjustable shoe-support foot.

Landscapes

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

Claims (18)

  1. Machine d'assemblage d'une chaussure comprenant un poste de travail (11) recevant une forme pour chaussure (12) sur laquelle est positionnée une empeigne (23) et des projecteurs lumineux (13) projetant des points de repère lumineux (24) sur l'empeigne dans le poste de travail, caractérisée en ce que les projecteurs sont alimentés pour déplacer sur commande les points de repère lumineux projetés, avec des moyens de contrôle (14) contrôlant le mouvement des projecteurs pour diriger chaque point de repère lumineux vers une position prédéterminée à la réception d'un signal de préparation (16).
  2. Machine selon la revendication 1, caractérisée en ce qu'elle comporte des moyens de détection (49-51) de la position de la chaussure dans le poste pour engendrer un signal de correction pour les positions prédéterminées des projecteurs par rapport à la chaussure.
  3. Machine selon la revendication 2, caractérisée en ce que les moyens de détection comportent un élément presseur mobile (49) prenant appui contre la partie arrière de la chaussure dans le poste et un capteur (51) pour la détection de la position de l'élément presseur.
  4. Machine selon la revendication 1, caractérisée en ce que les moyens de commande (14) comportent des moyens de mémoire (15) pour mémoriser une pluralité de positions prédéterminées qui sont susceptibles de sélection par l'intermédiaire d'une commande de sélection.
  5. Machine selon la revendication 4, caractérisée en ce qu'elle comporte des moyens (17, 18, 19) pour introduire la dimension ou pointure de la chaussure se référant à l'empeigne sur la forme pour chaussure reçue dans le poste de travail, avec les moyens d'entrée émettant ladite commande de sélection (16) en fonction des données en entrée relatives à la dimension.
  6. Machine selon la revendication 5, caractérisée en ce que les moyens d'entrée comportent des moyens (19) de mesure directe de la dimension de la chaussure se référant à l'empeigne sur la forme pour chaussure.
  7. Machine selon la revendication 4, caractérisée en ce qu'elle comporte des moyens (17, 18, 20) d'entrée du type de chaussure, gauche ou droite, se référant à l'empeigne reçue dans le poste de travail, avec les moyens d'entrée du type de chaussure émettant la commande de sélection (16) en fonction de l'entrée du type de chaussure.
  8. Machine selon la revendication 7, caractérisée en ce que les moyens d'entrée du type de chaussure comportent un capteur (20) disposé dans le poste de travail pour la détection automatique de la chaussure droite ou gauche.
  9. Machine selon la revendication 4, caractérisée en ce qu'elle comporte des moyens de calcul (29) calculant la pluralité de positions prédéterminées à partir des positions d'échantillonnage.
  10. Machine selon la revendication 9, caractérisée en ce que les positions d'échantillonnage sont la position la plus petite correspondant à une chaussure ayant la dimension la plus petite et la position la plus large correspondant à une chaussure ayant la dimension la plus large.
  11. Machine selon la revendication 10, caractérisée en ce que les positions la plus large et la plus petite sont introduites par des moyens de mise au point comprenant des moyens (26) de contrôle manuel de mouvement des projecteurs et des moyens (30-32) de contrôle manuel lors de la mémorisation de positions atteintes de manière à permettre à un opérateur d'amener les points de repère lumineux à des positions prédéterminées sur une empeigne d'échantillonnage et commander la mémorisation des positions atteintes en tant que positions la plus large et la plus petite.
  12. Machine selon la revendication 1, caractérisée en ce que chaque projecteur comporte un élément (35) pour la projection du point de repère lumineux le long d'un axe de projection, avec l'élément de projection qui est supporté pour être en mesure de tourner autour d'un axe (38) transversal à l'axe de projection contrôlé d'un motoréducteur (39) pour le déplacement le long d'une ligne de repère lumineuse projetée.
  13. Machine selon la revendication 12, caractérisée en ce que le motoréducteur (39) contrôle le mouvement de l'élément de projection contre la poussée d'un ressort (40) à travers une vis de poussée (41) tournée par le motoréducteur pour le vissage dans un support fixe (37) et l'appui sur l'élément de projection par une extrémité de poussée libre.
  14. Machine selon la revendication 1, caractérisée en ce que le projecteur comporte un codeur (46) pour la détection de la position des points de repère lumineux projetés pour fournir un retour d'asservissement aux moyens de contrôle.
  15. Machine selon la revendication 1, caractérisée en ce que les points de repère lumineux sont en forme de croix.
  16. Machine selon la revendication 1, caractérisée en ce qu'elle comporte au moins deux projecteurs latéraux pour projeter deux points de repère lumineux dans des zones latérales opposées de l'empeigne et un projecteur central pour projeter un point de repère lumineux dans une zone avant de l'empeigne.
  17. Machine selon la revendication 16, caractérisée en ce que les points de repère latéraux sont mobiles le long de lignes transversales à l'axe de la chaussure et le point de repère avant est mobile parallèle à l'axe de la chaussure.
  18. Machine selon la revendication 16, caractérisée en ce que les projecteurs latéraux sont supportés par une plaque (160) mobile avec l'élément de projection (135a) du projecteur central.
EP99201694A 1998-06-01 1999-05-28 Machine d'assemblage d'une chaussure à points de repère visuels programmables Expired - Lifetime EP0962159B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI981211 ITMI981211A1 (it) 1998-06-01 1998-06-01 Macchina di montaggio di calzature con mezzi programmabili di riferimento visivo
ITMI981211 1998-06-01

Publications (3)

Publication Number Publication Date
EP0962159A2 EP0962159A2 (fr) 1999-12-08
EP0962159A3 EP0962159A3 (fr) 2001-07-25
EP0962159B1 true EP0962159B1 (fr) 2003-12-03

Family

ID=11380137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99201694A Expired - Lifetime EP0962159B1 (fr) 1998-06-01 1999-05-28 Machine d'assemblage d'une chaussure à points de repère visuels programmables

Country Status (4)

Country Link
EP (1) EP0962159B1 (fr)
BR (1) BR9902631A (fr)
DE (1) DE69913246T2 (fr)
IT (1) ITMI981211A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114536156B (zh) * 2020-11-25 2023-06-16 广东天机工业智能系统有限公司 鞋帮打磨轨迹生成方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB963972A (en) * 1959-05-22 1964-07-15 Wallace Gerald Hawkins Improvements in apparatus for conforming shoe uppers
GB1096002A (en) * 1964-02-10 1967-12-20 Shoe & Allied Trades Res Ass Improvements in and relating to the treatment of shoe upper foreparts
GB9102926D0 (en) * 1991-02-12 1991-03-27 British United Shoe Machinery Pulling over and toe lasting machine
DE69624219T2 (de) * 1996-03-28 2003-04-17 Officine Meccaniche Molina & Bianchi S.P.A., Vigevano Maschine für die Herstellung von Schuhen

Also Published As

Publication number Publication date
EP0962159A3 (fr) 2001-07-25
EP0962159A2 (fr) 1999-12-08
BR9902631A (pt) 2000-01-11
DE69913246D1 (de) 2004-01-15
DE69913246T2 (de) 2004-09-23
ITMI981211A1 (it) 1999-12-01

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