EP0353881B1 - Machine destinée à travailler progressivement le long des parties marginales des chaussures - Google Patents

Machine destinée à travailler progressivement le long des parties marginales des chaussures Download PDF

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Publication number
EP0353881B1
EP0353881B1 EP19890307022 EP89307022A EP0353881B1 EP 0353881 B1 EP0353881 B1 EP 0353881B1 EP 19890307022 EP19890307022 EP 19890307022 EP 89307022 A EP89307022 A EP 89307022A EP 0353881 B1 EP0353881 B1 EP 0353881B1
Authority
EP
European Patent Office
Prior art keywords
tool
shoe
movement
ball
support
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
EP19890307022
Other languages
German (de)
English (en)
Other versions
EP0353881A2 (fr
EP0353881A3 (fr
Inventor
John Davies
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.)
USM Espana SA
Noxet UK Ltd
Original Assignee
USM Espana SA
British United Shoe Machinery Ltd
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 USM Espana SA, British United Shoe Machinery Ltd filed Critical USM Espana SA
Publication of EP0353881A2 publication Critical patent/EP0353881A2/fr
Publication of EP0353881A3 publication Critical patent/EP0353881A3/fr
Application granted granted Critical
Publication of EP0353881B1 publication Critical patent/EP0353881B1/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
    • 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
    • A43D25/00—Devices for gluing shoe parts
    • A43D25/18—Devices for applying adhesives to shoe parts
    • A43D25/183—Devices for applying adhesives to shoe parts by nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating

Definitions

  • This invention is concerned with a method of operating progressively along marginal portions of shoes using a machine which comprises a shoe support for supporting a lasted shoe with marginal portions thereof exposed and a tool support for supporting a tool for effecting an operation on such marginal portions, wherein relative movement can take place between the shoe support and the tool support in directions extending both lengthwise and widthwise of the shoe bottom, whereby the tool can effect an operation progressively along the marginal portions of the shoe.
  • EP-A-0276944 being a method of applying adhesive progressively to marginal portions of shoe bottoms.
  • the tool is constituted by a rotary brush which surrounds a nozzle outlet through which adhesive is supplied, the arrangement being such that, as the tool is caused to operate progressively along the shoe bottom, the rotating brush serves to spread the adhesive, giving a clearly defined edge adjacent to the edge of the shoe bottom.
  • a seam is provided, e.g. between the vamp and the quarter of the shoe, which is stitched.
  • the roughing brush breaks the stitches, with a result that while the underlying portion in the region of overlap remains adhered to the insole of the shoe, the top portion in such region, previously held in position by the stitching, is now loose.
  • a subsequent adhesive-applying operation therefore, where such top portion is "downstream" of the Vietnamesewhile seam (in terms of the direction of movement of the tool relative to the shoe bottom) there is a tendency for the tool to lift such top portion and fold it back upon itself.
  • the tool tends to break the adhesion between the lasting margin of the upper and the insole.
  • the direction of relative lengthwise movement between the tool and the marginal portion of the shoe being operated upon may be reversed in the region of any overlap in order to ensure that the top portion in the region of the overlap lies "upstream" of the occidentalle seam in terms of the direction of relative lengthwise movement over said marginal portion.
  • the action of the tool in each case is effective to press the top portion against the underlying portion and thus retain the two portions in the desired relationship.
  • the direction of relative lengthwise movement for a particular marginal portion there is no risk of the tool lifting the top portion and folding it back upon itself, still less of effecting a de-lasting action.
  • the tool is constituted by an adhesive-applying tool comprising a nozzle having a housing in which a ball is accommodated for controlling the flow of adhesive through the housing and which has an end face providing an annular rim by which the ball is retained in the housing but which allows a portion of the ball to project beyond said end face, spring means being provided for urging the ball into a sealing position against the annular rim, thus to prevent the flow of adhesive from the nozzle, but the ball being movable against the spring pressure out of such sealing position, thus to allow adhesive flow, such movement of the ball being limited by an abutment such that a portion of the ball still projects beyond the end face of the housing.
  • an adhesive-applying tool of this type is of course of particular benefit in that the adhesive flow is automatically shut off each time the ball of the tool and the marginal portion of the shoe move out of operative contact with one another.
  • the invention has been found particularly useful, moreover, where the adhesive-applying tool further comprises a brush assembly rotatable about an axis extending lengthwise of the nozzle for spreading adhesive supplied from the nozzle, and comprising bristles which extend in a direction lengthwise of the nozzle housing and are disposed about the whole of the periphery of said end face, and which project beyond said end face by a distance which can be set, drive means being provided for effecting such rotation of the brush assembly.
  • the machine thus comprises a base (10) supporting, by a bracket (12), a pivot shaft (14) about which a support (16) for a shoe support (18) can pivot.
  • the shoe support is arranged to support a shoe (S) bottom uppermost, with the toe end thereof facing towards the front of the machine, i.e. towards the operator.
  • the base (10) supports a support column structure (22) carrying a casting (24) on which is supported, for pivotal movement about a vertical axis, a support casting 34 having two upstanding lugs 32 between which a tool support generally designated 26' is supported for pivotal movement about a horizontal axis 31.
  • the machine further comprises a first stepping motor (144) mounted on the base (10) and effective to cause pivotal movement of the shoe support (18) to take place about the horizontal axis provided by the shaft (14) (X-axis movement).
  • a second stepping motor (84) is provided, carried by the casting (24) and effective to cause pivotal movement of the support casting 34 about its vertical axis (Y-axis movement).
  • a third stepping motor (122 - described in EP-A-0043645) is supported by the support casting 34, rearwardly of its vertical pivot, to cause it, and thus the tool support means 26' supported thereby, to pivot about its horizontal axis 31 (Z-axis movement).
  • the X-, Y- and Z-axes represent three co-ordinate axes along which a tool supported by the tool supporting means 26' can move.
  • Details of the shoe support (18) can be found in GB-A-2077090, and further details of the construction by which movement along the three axes can take place can be found in EP-A-0091321 and also in EP-A-0043645.
  • the tool support 26' comprises a housing 650 mounted for pivotal movement about said horizontal axis 31. From a forward face of the housing projects a hollow, tubular arm 652 within which is accommodated, for rotational movement therein, a support rod 654. At the forward end of said rod is a plate 656 supporting two forwardly projecting arms 658, which are spaced apart widthwise of the machine and on each of which is mounted, for pivotal movement, a pair of links 660, 662, upper ends of which pivotally support a plate 664.
  • the links 660, 662, together with the plate 664 and arms 658, thus comprise a first parallel linkage arrangement of the tool supporting means.
  • a further plate 666 Fixedly secured to a forward end of the plate 664, and projecting forwardly therefrom, is a further plate 666, in a forward, bifurcated, end of which is pivotally mounted a block 668 forming part of a tool holder generally designated 670. Also secured to the tool holder, at the left-hand side thereof, is a further link 672 which is in turn pivotally connected to each of the left-hand links 660, 662.
  • the links 660, 662, tool holder 670, link 672 and composite plate 664, 666 thus constitute a second parallel linkage of the tool supporting means.
  • the various pivots are so arranged in relation to one another that the tool holder is caused to pivot about an axis (a virtual centre) extending transversely of the bottom of a shoe supported by the shoe support (18) and passing through a point P, which lies on the axis of the support rod 654.
  • a point P which lies on the axis of the support rod 654.
  • the point P represents a height datum of the machine in a desired relationship with which the bottom of a shoe supported by the shoe support (18) can be positioned by means of a holddown member (450) and toe support means (470) of said support.
  • the point P lies vertically above the axis (14) of the shoe support (18).
  • the links 662 carry therebetween a block 674 to which is pivotally connected a forward end of a push-rod 676, the rearward end of which is similarly pivotally connected to a block 678 which is mounted on a pulley 680 freely rotatable about a drive shaft 682.
  • the pulley 680 is caused to rotate about said shaft by a timing belt 684 entrained around a second pulley 688, a tensioning pulley 690 being provided for maintaining the tension in the belt.
  • a third pulley 692 around which is entrained a second timing belt 694 meshing with a fourth, drive, pulley 696 secured on the drive shaft 682.
  • the shaft 682 is driven by a stepping motor 698.
  • a similar drive arrangement comprising a stepping motor 700 acting through pulleys 702, 704, 706 (the fourth not being shown) and timing belts (not shown), the pulley 706 being fixedly mounted on the support rod 654.
  • the tool holder 670 is arranged to support a tool generally designated 250 in the form of an adhesive applicator device generally as described in EP-A-0276944, the tool being fixedly mounted in the block 668.
  • the mounting arrangement is generally similar to the alternative mounting arrangement referred to in the aforementioned specification.
  • the adhesive applicator device 250 thus comprises a hollow shaft 366 (Fig. 2) mounted in the block 668 and carrying at its lower end a sprocket 368 pivotally connected by a chain (not shown but numbered 386 in said specification) to an electric motor also carried on the tool holder 670.
  • the shaft 366 carries a collar 370 in which is secured an upstanding pin 372 accommodated in a bore 374 of a further collar 376 which is threadedly secured to an output end 378 of a rotary coupling generally designated 380.
  • Force-fitted into the collar 376 is the upper end of an adhesive supply tube 382 which passes through the hollow shaft 366 and has screw-threaded on the lower end thereof a nozzle housing 384 (see Figs. 3 and 4). It will thus be appreciated that rotation of the sprocket 368 causes, through the pin 372 and bore 374, rotation of the tube 382 and thus of the nozzle housing 384 secured thereto.
  • the nozzle housing 384 has a frustoconical lower end face 384 a which provides an annular rim spaced from the lower end face 382 a of the tube 382 to form therein a chamber in which a ball 392 is accommodated with a portion thereof projecting beyond the annular rim.
  • a spring 394 is accommodated in a counter-sink formed in the lower end of the tube 382 and urges the ball against the annular rim into a sealing position in which adhesive flow through the nozzle is prevented.
  • pressing the ball 392 against a component to be coated with adhesive causes the ball to retract, to allow adhesive to be supplied through the nozzle, the supply continuing until the ball is moved out of contact with the component whereupon sealing takes place substantially immediately with consequent cut-off of the adhesive.
  • the ball is shown in its retracted condition in Fig. 4.
  • the nozzle housing 384 is capable of "floating" relative to the bearing block 364, that is to say excessive pressure applied to the ball is accommodated by sliding movement of the nozzle housing bodily in relation to the hollow shaft 366, so that any irregularities in the surface of the shoe bottom to be coated with adhesive, in relation to the heightwise path as determined by the third n.c. motor (122), can be accommodated.
  • a further spring 396 is provided acting between the nozzle housing and the underside of the hollow shaft, the force applied by the spring 396 being significantly greater than that applied by the spring 394, so as to ensure that the ball will first retract when engaged.
  • the operative surface portion of the tool is set at the point P, that is to say a certain amount of the "float” is taken up during teaching, thereby allowing variations of a plus or minus value from that position to take place according to any irregularities in the contour of the shoe bottom.
  • the operator when the machine is in its "teaching" mode, has regard to the distance between the two collars 370, 376. If desired, furthermore, a scale may be provided on one of the collars to assist the operator.
  • a brush assembly generally designated 398 is secured to the outside of the nozzle housing 384, e.g. by a Jubilee clip 400.
  • the brush assembly 398 comprises a ring 402, e.g. of plastics material, which is slid along the nozzle housing and in which are embedded sets of bristles 404 arranged to form a cylindrical shape which surrounds the nozzle housing and projects beyond the end face 384 a , being disposed about the whole of the periphery of said end face 38 4 a.
  • the machine has a "teaching" mode as well as an “operating” mode.
  • operator-actuatable means in the form of a cursor arrangement (not shown) or a joystick control (also not shown) is provided whereby the path of movement of the tool can be determined; the particular path determination procedure is described in detail in US-A4541054.
  • the machine For the digitising procedure itself and also for controlling the operation of the machine in its operating mode the machine also comprises computer control means.
  • This means comprises a memory in which a number of programmed instructions can be stored for different styles of shoe and also in which a number of sub-routines are stored for processing the data relating to the various styles. Thus one such sub-routine serves to determine the path the tool will follow, based upon the digitised points.
  • a further sub-routine is a grading programme which, according to the shoe length, as "measured” by the shoe support (18) (details of the shoe length measuring arrangement are described in GB-A2077090), is effective correspondingly to vary the distance between successive digitised points along the X-axis and also proportionately to vary the Y-axis movement, such variation of the Y-axis movement also serving to vary the incidence of the Z-axis movement and the pivotal movement about the first and second axes ('camber' and 'tilt' movement) of the tool holder 670.
  • Such change in the direction of the tool movement can be achieved during the "teaching" mode of operation of the machine in the following manner: after the "teaching" of a point P1 which lies “upstream” of a seam and spaced therefrom by at least the distance between successive points (which is of course predetermined), and with the tool moved to its next start position along the X- and Z-axes as aforesaid, the operator again actuates the "teach” button (642) thereby effectively “teaching” a point P2 which is in space.
  • the operator must also take into account the fact that the tool "floats" and must ensure that the tool is in fact clear of the shoe bottom even when the operative surface of the tool is urged downwardly by the spring 396 as aforesaid. If in fact the next start position is such that the ball is in contact with the shoe bottom, then clearly the operator must, through the operator-actuatable means, effect sufficient Z-axis movement to ensure that the tool and shoe bottom are moved out of operative contact prior to actuation of the "teach" button.
  • this procedure is preferably repeated for a second point P3 whereafter the next point P4 will be digitised and "taught" in the usual manner, that is to say with the tool and shoe support in operative contact.
  • the next point P5 to be digitised is then effected in the reverse direction, i.e. back towards the seam, and the digitising of points P6, P7 in a reverse direction continues to be effected until a position is reached beyond the seam, which is coincident with or overlaps the last point P1 to be digitised in the first direction of movement of the tool , at which point operative contact was maintained between the tool and the shoe bottom.
  • the reversal of the direction of movement of the tool need only be effected on the side of the shoe where, in terms of the first direction of movement of the tool need only be effected on the side of the shoe where, in terms of the first direction of movement of the tool, the top portion of the overlap is disposed "downstream" of the seam.
  • the operator may select whether to effect two separate reverse movements of the tool or a single reverse movement, according to the spacing of the seams.
  • a sub-programme may be provided whereby the operator merely digitises the shoe bottom in the usual manner, but at the first point "downstream" of a seam, that is to say, immediately after the seam has been passed during the digitising process, the operator may activate the sub-programme whereby automatically a procedure generally as set out above, including points in space, can be effected as part of the digitising process, but without physically moving the tool in a reverse direction, so that a similar effect can be achieved in the operating mode of the machine.
  • a facility could be provided whereby, in the teaching mode of the machine, a signal can be supplied by the operator before a seam is reached, but otherwise digitising takes place in the usual manner, the effect of the signal being that the next succeeding points are interpreted by a sub-routine of a computer programme to effect the movement through space and reverse movement with the tool and shoe bottom in operative contact, followed by further movement in space in the manner described above.
  • marginal portions of shoes with broken seams can readily be treated, e.g.. by way of the application of adhesive to such marginal portions, without the detrimental effect which has been experienced where the direction of movement of the tool in relation to the shoe bottom cannot be reversed in those regions.
  • the invention has been described hereinbefore with reference to the application of adhesive to marginal portions of shoe bottoms, it would also be applicable to the control of the roughing of marginal portions of shoe bottoms and other operations thereon and also to various operations to be performed on the side wall portions of shoes.

Claims (5)

  1. Procédé permettant de travailler progressivement le long de portions marginales de chaussures en utilisant une machine qui comprend :
       un support de chaussure (18) pour supporter une chaussure montée (S) dont les portions marginales sont exposées, et
       un support d'outil (26') pour supporter un outil pour réaliser un travail sur de telles portions marginales,
       dans lequel un mouvement relatif peut avoir lieu entre le support de chaussure (18) et le support d'outil (26') dans des directions s'étendant à la fois en longueur et en hauteur par rapport à la partie inférieure de la chaussure, par lequel l'outil peut réaliser un travail progressif le long des portions marginales de la chaussure,
       ledit procédé étant caractérisé en ce que, au cours d'un tel travail progressif pour une portion marginale sélectionnée de la chaussure, on effectue un mouvement en hauteur relatif de séparation entre le support de chaussure (18) et le support d'outil (26') pour faire en sorte que l'outil et ladite portion marginale ne se trouvent plus en contact de travail l'un avec l'autre, tandis que l'on poursuit le mouvement longitudinal relatif dans ladite première direction, et par la suite, on effectue un mouvement en hauteur relatif d'approche entre le support de chaussure (18) et le support d'outil (26') pour remettre ladite portion marginale et l'outil en contact de travail, tel qu'on l'a indiqué, et on inverse la direction du mouvement longitudinal relatif, faisant en sorte que l'outil travaille progressivement le long de ladite portion marginale dans une direction opposée, au terme dudit travail, la direction du mouvement longitudinal relatif étant inversée une fois de plus et se poursuivant par conséquent dans ladite première direction.
  2. Procédé selon la revendication 1, caractérisé en ce que lorsque la direction du mouvement longitudinal relatif est inversée une fois de plus comme indiqué ci-dessus le mouvement en hauteur relatif de séparation est effectué une fois de plus entre le support de chaussure ((18)) et le support d'outil (26') pour ladite portion marginale sélectionnée, le mouvement en hauteur relatif d'approche ultérieur étant effectué pour rétablir le contact de travail entre la chaussure et l'outil, et ainsi pour permettre à l'outil de poursuivre son travail progressif dans ladite première direction.
  3. Procédé selon l'une quelconque des revendications 1 et 2, caractérisé en ce que l'outil (250) est constitué par un outil applicateur d'adhésif (250), comprenant une buse comportant un logement (384) dans lequel vient se loger une bille (392) pour régler l'écoulement de l'adhésif à travers le logement (384) et qui possède une face terminale (384a) procurant un rebord annulaire par lequel la bille (392) est retenue dans le logement (384), mais qui permet à une portion de la bille (392) de faire saillie au-delà de ladite face terminale (384a), un moyen de ressort (394) étant prévu pour presser la bille (392) dans une position d'étanchéité contre le rebord annulaire (384a) pour ainsi empêcher l'écoulement de l'adhésif à partir de la buse, la bille (392) étant toutefois à même de se déplacer à l'encontre de la pression exercée par le ressort pour quitter ladite position d'étanchéité, permettant ainsi un écoulement d'adhésif, ledit mouvement de la bille (392) étant limité par une butée (382a) de telle sorte qu'une portion de la bille (392) fait toujours saillie au-delà de la face terminale (384a) du logement (384).
  4. Procédé selon la revendication 3, caractérisé en ce que l'outil applicateur d'adhésif (250) comprend en outre un assemblage de brosse (398) rotatif autour d'un axe s'étendant longitudinalement par rapport à la buse pour étaler l'adhésif alimenté par la buse, et comprenant des poils (404) qui s'étendent en direction longitudinale par rapport au logement de buse (384), qui sont disposés autour de toute la périphérie de ladite face terminale (384a), et qui font saillie au-delà de ladite face terminale (384a) par une distance qui peut être réglée, des moyens d'entraînement (366 à 380) étant prévus pour effectuer une telle rotation de l'assemblage de brosse (398).
  5. Procédé selon la revendication 4, caractérisé en ce que le logement de buse (384), conjointement avec l'assemblage de brosse (398), est monté pour effectuer un mouvement de glissement limité dans une direction s'étendant longitudinalement par rapport au logement de buse (384), un moyen de ressort (396) étant prévu, qui possède une pression qui, lorsqu'elle s'exerce, est supérieure à celle du moyen de ressort (394) agissant sur la bille (392), pour presser le logement de buse (384) et l'assemblage de brosse (398) en direction de la partie inférieure de la chaussure.
EP19890307022 1988-07-30 1989-07-11 Machine destinée à travailler progressivement le long des parties marginales des chaussures Expired - Lifetime EP0353881B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8818212 1988-07-30
GB888818212A GB8818212D0 (en) 1988-07-30 1988-07-30 Machines for operating progressively along marginal portions of shoe bottoms

Publications (3)

Publication Number Publication Date
EP0353881A2 EP0353881A2 (fr) 1990-02-07
EP0353881A3 EP0353881A3 (fr) 1992-01-29
EP0353881B1 true EP0353881B1 (fr) 1996-02-21

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Application Number Title Priority Date Filing Date
EP19890307022 Expired - Lifetime EP0353881B1 (fr) 1988-07-30 1989-07-11 Machine destinée à travailler progressivement le long des parties marginales des chaussures

Country Status (5)

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EP (1) EP0353881B1 (fr)
JP (1) JPH0280002A (fr)
DE (1) DE68925708T2 (fr)
ES (1) ES2083382T3 (fr)
GB (1) GB8818212D0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1270080A1 (fr) 2001-06-19 2003-01-02 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Dipositif et méthode pour appliquer un lubrifiant

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2079029T3 (es) * 1990-03-28 1996-01-01 Usm Espana Sa Manejo de composiciones de multiples componentes.
CN106263295B (zh) * 2016-08-11 2018-12-04 温州市铭盟鞋业有限公司 一种制鞋用均匀涂抹白胶装置
CN116765942B (zh) * 2023-08-16 2023-11-14 泉州市智锐机械制造有限公司 自动示教组件及连续可变角度磨削设备及其自动示教工艺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3992743A (en) * 1976-04-12 1976-11-23 International Shoe Machine Corporation Roughing machine with damper mechanism
EP0043645B1 (fr) * 1980-06-10 1984-09-12 British United Shoe Machinery Limited Machine pour le cardage progressif des parties marginales des dessous de chaussure
CA1203652A (fr) * 1982-04-08 1986-04-29 Herbert W. Boot Dispositif de gravure progressive sur forme le long des bords de semelles de chaussures
GB2200304B (en) * 1987-01-30 1990-11-14 Busm Co Ltd Adhesive applicator device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1270080A1 (fr) 2001-06-19 2003-01-02 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Dipositif et méthode pour appliquer un lubrifiant
US6896103B2 (en) 2001-06-19 2005-05-24 Ford Global Technologies, Llc Device and method for applying lubricating oil

Also Published As

Publication number Publication date
EP0353881A2 (fr) 1990-02-07
DE68925708T2 (de) 1996-07-04
EP0353881A3 (fr) 1992-01-29
JPH0280002A (ja) 1990-03-20
DE68925708D1 (de) 1996-03-28
ES2083382T3 (es) 1996-04-16
GB8818212D0 (en) 1988-09-01

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