EP0403720B1 - Tête de travail pour repasser automatiquement et continuellement la partie de la pointe, du talon et les parties cambrées des tiges empeignes montées sur l'embouchoir - Google Patents

Tête de travail pour repasser automatiquement et continuellement la partie de la pointe, du talon et les parties cambrées des tiges empeignes montées sur l'embouchoir Download PDF

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Publication number
EP0403720B1
EP0403720B1 EP19890830286 EP89830286A EP0403720B1 EP 0403720 B1 EP0403720 B1 EP 0403720B1 EP 19890830286 EP19890830286 EP 19890830286 EP 89830286 A EP89830286 A EP 89830286A EP 0403720 B1 EP0403720 B1 EP 0403720B1
Authority
EP
European Patent Office
Prior art keywords
last
roller
carriage
heel
toe
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
EP19890830286
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German (de)
English (en)
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EP0403720A1 (fr
Inventor
Christiano Paccapelo
Alberico Fiorani
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.)
TESMA Srl
Original Assignee
TESMA Srl
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Filing date
Publication date
Application filed by TESMA Srl filed Critical TESMA Srl
Priority to EP19890830286 priority Critical patent/EP0403720B1/fr
Priority to DE89830286T priority patent/DE68909403D1/de
Publication of EP0403720A1 publication Critical patent/EP0403720A1/fr
Application granted granted Critical
Publication of EP0403720B1 publication Critical patent/EP0403720B1/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
    • A43D95/00—Shoe-finishing machines
    • A43D95/02—Machines for treating or smoothing shoe uppers to remove wrinkles, folds, or the like
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D113/00—Machines for making shoes with out-turned flanges of the uppers or for making moccasins

Definitions

  • the subject of this industrial patent application is a mechanical device for the pressing of shoe vamps capable of operating in an automatic cycle in continuous and rapid succession at the front where the toe is, at the rear where the heel is and also laterally, along the sides of the vamp.
  • the pressing procedure necessary for the flattening and elimination of creases formed in the skin near and along the seams is currently performed by automatic machines with one or more work stations whereby the vamp, fitted over a special pre-heated aluminium last, is subjected to the hammering and rolling action of a shaped roller that rotates freely around its longitudinal axis, pinned between the prongs of an oscillating fork to which a vibrating motion is conveyed, thus enabling the roller to flatten out the creases in the skin (see FR-A- 2 535 952).
  • the fork that supports the roller is anchored to articulated supports that enable the roller to be pressed against the last and to rotate so that the roller itself can move back and forth around the entire front tip of the vamp.
  • the aim of this invention is to improve upon the currently existing operating heads for the automatic pressing of shoe vamps in order to enable processing to take place in continuous and rapid succession over the whole of the vamp, both at the front and rear and also along the sides.
  • the solution according to the invention basically relies upon the principle of making the support of the abovementioned roller,which actually carries out the pressing process, effect a course around the whole of the outer edge of the vamp fitted over the last, in that the work cycle includes two phases of operation during which the roller assumes a rotating motion at the heel and the toe, and two phases of operation during which the roller assumes a translating motion at the sides of the vamp.
  • the roller is first pulled along a semicircular trajectory during which the toe is pressed; then , without stopping, the roller embarks upon a rectilinear course during which the side of the vamp is pressed, following which the same roller effects another semi-circular trajectory around the heel, and then a final rectilinear course along the other side of the vamp until it draws to a halt at the point where its journey began and from whence the work cycle can be repeated.
  • a further aim of the invention is to provide a self-adjusting device for the aforementioned pressing head so that the translations effected on the sides of each last can be automatically varied each time, depending on the size of the vamp being pressed at that moment, thus eliminating any calibration procedures and, above all, enabling the pressing station to be loaded with a series of different sized vamps fitted over a series of lasts arranged in any order, with no kind of limitation whatsoever.
  • the self-adjusting device in question consists of a pair of optical sensors aligned one above the other on the mobile support carriage of the pressing tool, lying on a vertical plane that passes along the longitudinal axis of the last. Said sensors function in such a manner that the downward movement of the carriage is automatically halted when the lower sensor, as it is moved downwards, passes beyond the heel of the last, while during the upward movement of the carriage the tool is automatically moved away from the vamp when the upper sensor passes upwards beyond the toe of the last, the latter event occurring exactly when the pressing tool returns to the point at which its journey around the last began.
  • the upper sensor also controls the halting of the downward movement of the pressing tool when when it initially moves towards the last, stopping in the position from which its course around the vamp will begin.
  • the pressing roller (1) is free to rotate around its longitudinal axis, sustained between the prongs of a fork (2) in turn free to oscillate around a pin (3) positioned at right-angles to the longitudinal axis of the roller (1); said pin (3) links the fork (2) to a supporting head (4), which, activated by means of a pneumatic cylinder (5) is able to run along the two cylindrical guides (6) protruding parallel to one another from a strong transversal bar (7).
  • any mechanical or pneumatic device can be installed that is capable of conveying to the roller (1), through the fork (2), the oscillations and vibrations necessary to carry out the required pressing operation.
  • a ratio motor (8) installed at the back of a carriage (9) which can be made to move by means of a hydraulic cylinder (10) along two subvertical cylindrical guides (10a) which run parallel between two supporting crosspieces (11), to the uppermost of which, in the centre, the aforesaid cylinder (10) is attached.
  • the roller (1) When the last upon which the vamp is fitted arrives at the pressing station, the roller (1) is immobile in a withdrawn position since the rod (16b) is retracted inside the liner (16a) and, with the aid of the cylindrical bars (12) joined thereto, the platform (13) has pulled back the supporting frame consisting of the guides (10a) and crosspieces (11) of the carriage (9).
  • the work cycle begins with the expulsion of the rod (16b) from the liner (16a) which causes the roller (1) to move to a position above and to the side with respect to the last (19).
  • the roller (1) finds itself beside the last (19) exactly at the point in which it has to begin its course around the last against which it abuts and is pressed as a result of the activation of cylinder (5) which controls the running of the head (4) along the guides (6) until the roller (1) is flush against the vamp.
  • the roller (1) can therefore begin its semicircular trajectory around the toe of the last (19), said roller being endowed with an oscillating motion due to the eccentric connection of the rod (16b) to the disk (17) which rotates, driven by the ratio motor (18).
  • the ratio motor (8) momentarily stops and at the same time the pneumatic cylinder (10) comes into action, pushing the carriage (9) downwards until the lower optical sensor (B), positioned on said carriage (9) below the other optical sensor (A), passes beyond the heel of the vamp,the position of said optical sensor (B) on the carriage (9) having been carefully chosen so that when this happens the descending roller (1) is effectively at the point in which it has to begin its semicircular course around the heel.
  • the cylinder (10) is automatically dis-and at the same time the ratio motor (8)is re-activated, enabling the roller (1), driven in a semicircular course around the heel, to press this rear zone of the last.
  • the ratio motor (8) stops again and at the same time the cylinder (10) is re-activated which, as it now retracts, causes the carriage (9) to move upwards, enabling the roller to press the other side of the vamp.
  • the cylinder (10) continues to function until the carriage (9) arrives at the upper limit of its course and consequently, during this ascent, the roller (1) passes beyond the point in which its course around the vamp began.
  • optical sensor (A) comes into play when, moving upwards with the carriage (9), it passes beyond the toe of the last (19) in that the postion of optical sensor(A) on the carriage (9) has been carefully chosen so that when this happens the roller (1) finds itself exactly at the point in which its journey around the last began.
  • Said microswitches (20) work in combination and are synchronised with a further set of microswitches (21) situated on cylinder (10), so that selected strokes of the cylinder rod correspond to preset backwards and forwards movements of the carriage (9), in that the positions of all microswitches (20 and 21) are fully adjustable, enabling a perfect pressing of the vamp to be obtained on any shape or size of last.

Landscapes

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

Claims (6)

  1. Tête opératrice pour le repassage automatique en continu de la pointe, du talon et des côtés des empeignes enfilées sur des formes, du type avec un roulement (1) libre de pivoter dans les ailes d'une fourche oscillante et vibrante (2) qui résulte fixée sur une tête de support (4) qui, mise en fonction par un cylindre automatique (5), peut glisser le long d'une paire de tiges de coulissement (6) qui forjettent de manière parallèle d'une robuste barre transversale (7); tête opératrice caractérisée en ce qu'au centre de la barre transversale (7) on fixe de manière postérieure l'arbre (8a) d'un moto-réducteur qui est lui-même installé sur l'arrière d'un chariot (9) que l'on peut faire glisser, au moyen d'un cylindre hydraulique (10) le long de deux coulisses cylindriques subverticales, ces dernières s'étendant parallèlement entre deux traverses de support (11) desquelles forjettent, de leurs extrémités et postérieurement, quatre tiges cylindriques (12) qui traversent une plate-forme de raidissement (13) à laquelle elles sont fixées; lesdites tiges cylindriques (12) s'enfilant dans quatre douilles (14) de support et coulissement, fortement ancrées sur un châssis portant (15), étant prévu qu'au centre et sur la partie postérieure de ladite plate-forme de raidissement (13) soit montée en saillie la chemise (16a) d'un cylindre hydraulique dont la tige (16b) résulte fixée de manière excentrique sur un disque (17) qui est entraîné en rotation par un motoréducteur (18) ancré au châssis portant (15).
  2. Tête opératrice pour le repassage automatique en continu de la pointe, du talon et des côtés des empeignes enfilées sur des formes, selon la revendication 1), caractérisée en ce que le cycle de travail effectué par la tête opératrice en objet englobe:
    - un premier trajet avec trajectoire demi-circulaire du roulement (1) qui est entraîné, suite à une rotation de 180° de l'arbre (8a), tout autour de la pointe de la forme (19);
    - un deuxième trajet avec trajectoire linéaire du roulement (1) pendant lequel le chariot (9) glisse, grâce à l'action du cylindre (10), vers le bas de manière à déplacer le roulement (1) de la pointe au talon de la forme (19), le long et contre le côté de celle-ci;
    - un troisième trajet avec trajectoire demi-circulaire du roulement (1) qui est entraîné, suite à une ultérieure rotation de 180° de l'arbre (8a), tout autour du talon de la forme (19);
    - un quatrième trajet avec trajectoire linéaire du roulement (1) pendant lequel le chariot (9) est renvoyé, grâce à l'action du cylindre (10), vers le haut de manière à ramener le roulement en proximité de la pointe de la forme, juste sur le point de départ du roulement autour de la forme et, à partir de là, le cycle opérationnel peut recommencer sur une nouvelle empeigne à repasser.
  3. Tête opératrice pour le repassage automatique en continu de la pointe, du talon et des côtés des empeignes enfilées sur des formes, selon les revendications précédentes, caractérisée en ce que sur la chemise (16a) et sur le cylindre hydraulique (10) sont respectivement installées deux séries de micro-interrupteurs (20 et 21) qui en combinaison entre eux permettent de faire reculer ou avancer pour un nombre de trajets pré-établis le chariot (9) quand celui-ci dépasse des points pré-fixés pendant ses courses linéaires le long des côtés de la forme (19).
  4. Dispositif d'autoréglage pour une tête opératrice pour le repassage automatique en continu de la pointe, du talon et des côtés des empeignes enfilées sur des formes, du type illustré dans les revendications précédentes, caractérisée en ce qu'il est équipé de deux lecteurs optiques (A et B) situées en position alignée et superposée sur le chariot (9), sur un plan vertical passant par l'axe longitudinal de la forme (19) sur laquelle l'empeigne à repasser est enfilée et fonctionnant de manière que:
    - le trajet de descente du chariot (9), pendant lequel s'effectue le repassage de l'un des deux côtés de l'empeigne, soit interrompu automatiquement en désactivant le cylindre (10) quand le lecteur inférieur (B) dépasse le talon de la forme (19);
    - le roulement de repassage (1) soit automatiquement éloigné de l'empeigne au moyen de la mise en fonction du cylindre (5) quand, pendant le trajet de remontée du chariot (9), le roulement (1) passe par le point à partir duquel il avait commencé son périple autour de la forme (19);
    - le trajet de descente du chariot (9), grâce auquel le roulement (1) est rapproché à la forme (19) avant de commencer l'opération de repassage, soit automatiquement interrompu en désactivant le cylindre (10) quand le lecteur supérieur (A) dépasse la pointe de la forme.
  5. Dispositif d'autoréglage, selon la revendication 4), caractérisé en ce que le lecteur optique supérieur (A) est installé sur le chariot (9) de manière que quand le susdit lecteur intercepte, soit en phase de montée que de descente du chariot (9), la pointe de la forme (19), le roulement (1) se trouve toujours sur le point de départ du cycle de travail autour de la forme.
  6. Dispositif d'autoréglage selon les revendications 4) et 5), caractérisée en ce que le lecteur optique inférieur (B) est installé sur le chariot (9) de manière que quand le susdit lecteur (B) intercepte le talon de la forme (19), le roulement (1) se trouve sur le point à partir duquel il doit commencer son parcours demi-circulaire autour du talon de la forme.
EP19890830286 1989-06-22 1989-06-22 Tête de travail pour repasser automatiquement et continuellement la partie de la pointe, du talon et les parties cambrées des tiges empeignes montées sur l'embouchoir Expired - Lifetime EP0403720B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19890830286 EP0403720B1 (fr) 1989-06-22 1989-06-22 Tête de travail pour repasser automatiquement et continuellement la partie de la pointe, du talon et les parties cambrées des tiges empeignes montées sur l'embouchoir
DE89830286T DE68909403D1 (de) 1989-06-22 1989-06-22 Bewegbarer Kopf zum automatischen, kontinuierlichen Bügeln der Spitze, Ferse und Gelenkteile von auf einem Leisten aufgezwickten Schuhoberteilen.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19890830286 EP0403720B1 (fr) 1989-06-22 1989-06-22 Tête de travail pour repasser automatiquement et continuellement la partie de la pointe, du talon et les parties cambrées des tiges empeignes montées sur l'embouchoir

Publications (2)

Publication Number Publication Date
EP0403720A1 EP0403720A1 (fr) 1990-12-27
EP0403720B1 true EP0403720B1 (fr) 1993-09-22

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EP19890830286 Expired - Lifetime EP0403720B1 (fr) 1989-06-22 1989-06-22 Tête de travail pour repasser automatiquement et continuellement la partie de la pointe, du talon et les parties cambrées des tiges empeignes montées sur l'embouchoir

Country Status (2)

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EP (1) EP0403720B1 (fr)
DE (1) DE68909403D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
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CN104026811A (zh) * 2014-06-11 2014-09-10 成都力鑫科技有限公司 一种热整形装置
CN108209022A (zh) * 2018-01-15 2018-06-29 浙江恒诚鞋业有限公司 一种缝翻鞋的生产工艺

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1299999B1 (it) * 1998-04-30 2000-04-04 Mario Ciucani Macchina per la stiratura di tomaie per calzature e loro successivo attacco a corrispondenti fondi.
CN104665116B (zh) * 2015-03-06 2017-02-08 海门市彼维知识产权服务有限公司 一种制鞋用的鞋面平整机
TWI622362B (zh) * 2015-06-04 2018-05-01 耐克創新有限合夥公司 鞋類成形裝置及藉由製造系統滾動鞋類物件之組件的方法
CN112244437B (zh) * 2020-09-28 2021-10-08 瑞安市大虎鞋业有限公司 一种利用温度控制除皱时长的鞋子表面加工除皱的装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1156288B (it) * 1982-11-17 1987-01-28 Gino Ubaldi Macchina per la stiratura dei mocassini,con azione prettamente meccanica

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104026811A (zh) * 2014-06-11 2014-09-10 成都力鑫科技有限公司 一种热整形装置
CN104026811B (zh) * 2014-06-11 2015-12-30 成都力鑫科技有限公司 一种热整形装置
CN108209022A (zh) * 2018-01-15 2018-06-29 浙江恒诚鞋业有限公司 一种缝翻鞋的生产工艺
CN108209022B (zh) * 2018-01-15 2021-01-05 浙江恒诚鞋业有限公司 一种缝翻鞋的生产工艺

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Publication number Publication date
EP0403720A1 (fr) 1990-12-27
DE68909403D1 (de) 1993-10-28

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