FR2512332A1 - Shoe moulding machine esp. for polyurethane foam - tilts between two positions for moulding upper and sole to eliminate bubbles - Google Patents
Shoe moulding machine esp. for polyurethane foam - tilts between two positions for moulding upper and sole to eliminate bubbles Download PDFInfo
- Publication number
- FR2512332A1 FR2512332A1 FR8116983A FR8116983A FR2512332A1 FR 2512332 A1 FR2512332 A1 FR 2512332A1 FR 8116983 A FR8116983 A FR 8116983A FR 8116983 A FR8116983 A FR 8116983A FR 2512332 A1 FR2512332 A1 FR 2512332A1
- Authority
- FR
- France
- Prior art keywords
- sole
- stamp
- boot
- mould
- shoe
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/06—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
- B29D35/08—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising having multilayered parts
- B29D35/081—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising having multilayered parts by injection moulding
Abstract
Description
Machine pour l'estampage de bottes, bottillons, après-ski ou chaussures montantes, en polyuréthane ou autres matériaux en mousse, évitant la formation de bulles d'air internes.Machine for stamping boots, booties, après-ski or high boots, in polyurethane or other foam materials, preventing the formation of internal air bubbles.
La présente invention a pour objet une machine pour l'estampage de bottes et autres chaussures en polyuréthane et autres matériaux en mousse ayant des tiges plus ou moins longues.The present invention relates to a machine for stamping boots and other shoes made of polyurethane and other foam materials having more or less long uppers.
Cette machine travaille de façon à éviter la formation de bulles d'air à l'intérieur de la chaussure, dans les limites de l'épaisseur de celle-ci, qui est de 1 mm environ.This machine works so as to avoid the formation of air bubbles inside the shoe, within the limits of its thickness, which is about 1 mm.
La caractéristique principale de la machine est de pouvoir agir sur la chaussure alors que celle-ci est en position renversée à cet effet, elle comprend une estampe qui peut se renverser par rotation de 1800 et est munie de moyens d'actionnement qui peuvent en effectuer le renversement, la fermeture et l'ouverture, soit automatiquement, soit par l'intervention de l'opérateur. La chaussure étant renversée, c'est-à-dire la semelle en haut et la tige en bas, l'introduction du matériau en mousse peut s'effectuer par le bas au moyen d'une injection et par le haut au moyen d'une coulée. Dans ces deux opérations, l'air s'échappe à travers la semelle et l'injection remonte de la tige jusqu'à la première couche de la semelle, le couvercle étant ouvert, soit pour un matériau d'une seule couleur, soit pour un matériau bicolore.The main characteristic of the machine is to be able to act on the shoe while it is in the inverted position for this purpose, it includes a stamp which can be reversed by rotation of 1800 and is provided with actuating means which can effect it. overturning, closing and opening, either automatically or by operator intervention. The shoe being overturned, i.e. the sole at the top and the upper at the bottom, the introduction of the foam material can be carried out from the bottom by means of an injection and from the top by means of a flow. In these two operations, air escapes through the sole and the injection rises from the upper to the first layer of the sole, the cover being open, either for a material of a single color, or for a two-tone material.
Une fois l'injection ou la coulée finies, on ferme le couvercle et la réaction du polyuréthane se termine, le couvercle étant fermé ; cette réaction dure quelques minutes. Ensuite, le couvercle s'ouvre automatiquement de façon connue et l'on fait basculer l'estampe par une rotation de 1800.Once the injection or pouring is finished, the cover is closed and the reaction of the polyurethane ends, the cover being closed; this reaction lasts a few minutes. Then, the cover opens automatically in a known manner and the stamp is tilted by a rotation of 1800.
Dans les machines traditionnelles, l'injection du matériau se fait alors que l'estampe est fermée à la partie supérieure et à la partie inférieure, soit pour un matériau d'une seule couleur, soit pour un matériau bicolore. Dans la machine selon la présente invention, on opère estampe ouverte, dans les deux cas. La machine comprend deux estampes : une estampe principale qui effectue l'estampage de la botte du bord de la tige jusqu'à la première couche fine de semelle (par conséquent, à l'exclusion de la semelle) ; et une seconde estampe qui effectue l'estampage uniquement de la semelle t cette dernière est estampée, après le renversement de l'estampe principale contre la fine couche du dessous-de la botte, de sorte que la semelle s'unisse et forme une pièce unique avec la pièce déjà estampée par l'estampe principale.In traditional machines, the material is injected while the print is closed at the top and at the bottom, either for a material of one color, or for a two-color material. In the machine according to the present invention, the stamp is operated open, in both cases. The machine comprises two stamps: a main stamp which stamps the boot from the edge of the upper to the first thin layer of sole (therefore, excluding the sole); and a second stamp which stamps only the sole t the latter is stamped, after the main stamp is reversed against the thin layer of the underside of the boot, so that the sole unites and forms a piece unique with the piece already stamped by the main print.
L'estampe principale est munie d'un couvercle basculant qui reste ouvert pendant l'introduction du matériau, quelle que soit la façon dont cette introduction s'effectue : injection ou coulée. Le couvercle se ferme seulement pendant les quelques minutes nécessaires pour la réaction du matériau en mousse.The main print is provided with a tilting cover which remains open during the introduction of the material, regardless of how this introduction is carried out: injection or casting. The cover closes only for the few minutes necessary for the reaction of the foam material.
L'estampe réservée à la semelle se trouve en bas et, après avoir été remplie de matériau en mousse par coulée, elle subit une translation verticale jusqu'à se trouver fermée par l'estampe principale qui, précédemment, avait déjà achevé son propre travail.The stamp reserved for the sole is at the bottom and, after having been filled with foam material by pouring, it undergoes a vertical translation until being closed by the main print which, previously, had already completed its own work .
La machine est actionnée par des moyens connus : pneumatiques, hydrauliques, électriques, etc...The machine is operated by known means: pneumatic, hydraulic, electric, etc.
A la fin des opérations, quand l'estampe s'ouvre, il reste au centre la forme avec la botte qui lui est attachée. Cette dernière est finalement libérée des entraves restantes. At the end of the operations, when the print opens, the shape remains with the boot attached to it. The latter is finally released from the remaining shackles.
Au dessin annexé, on a représenté un exemple non limitatif de réalisation de l'invention. I1 va de soi que celle-ci embrasse également tout autre forme de réalisation inspirée des mêmes concepts inventifs ou utilisant, même dans une combinaison différente, les mêmes caractéristiques.In the accompanying drawing, there is shown a non-limiting example of embodiment of the invention. It goes without saying that it also embraces any other embodiment inspired by the same inventive concepts or using, even in a different combination, the same characteristics.
La figure 1 représente une vue schématique de la
machine, en élévation, avec des parties en coupe, dans
la première phase du travail où l'on opère sur la botte
renversée, soit par injection, soit par coulée
La figure 2 est une vue analogue à la figure 1, dans la
seconde phase du travail, où l'on opère sur la botte
dans sa position normale afin de former, en dessous de
celle-ci, la semelle : dans cette seconde phase, l'on
pourra utiliser une couleur différente de celle utilisée
dans la première.Figure 1 shows a schematic view of the
machine, in elevation, with cut parts, in
the first phase of work where we operate on the boot
overturned, either by injection or by casting
Figure 2 is a view similar to Figure 1, in the
second phase of work, where we operate on the boot
in its normal position in order to form, below
this one, the sole: in this second phase, we
may use a different color from that used
in the first.
A désigne l'ensemble de la machine, Y indique le sens de rotation de l'estampe 2, qui est renversée après la première opération.A designates the entire machine, Y indicates the direction of rotation of the stamp 2, which is reversed after the first operation.
Le support 1 soutient l'estampe 2 qui vient former la botte 3.The support 1 supports the stamp 2 which forms the boot 3.
Le renversement de l'estampe 2 contenant la botte est provoqué par l'ensemble cylindre-piston 7 qui pousse, dans le sens rectiligne, la crémaillère 5 contenue dans les limites des guides 6. Le mouvement rectiligne d'aller et retour de la crémaillère est transformé en mouvement de rotation par le pignon denté 4 qui engrène avec la crémaillère 5, laquelle est liée à l'estampe 2. L'estampe, en tournant, décrit l'arc indiqué par Y.The reversal of the stamp 2 containing the boot is caused by the cylinder-piston assembly 7 which pushes, in the rectilinear direction, the rack 5 contained within the limits of the guides 6. The rectilinear movement back and forth of the rack is transformed into a rotational movement by the toothed pinion 4 which meshes with the rack 5, which is linked to the stamp 2. The stamp, by turning, describes the arc indicated by Y.
Pour l'estampage de la semelle 10, -on utilise la plate-forme 9 qui peut monter et descendre, sous l'action d'un petit piston hydraulique 11 ou d'un autre organe moteur. L'estampe 10 destinée à former la semelle est remplie de matière plastique, de préférence par coulée, avant de se soulever et de prendre contact avec l'estampe supérieure 2. Le couvercle 12 de l'estampe supérieure peut s'ouvir en culbutant, mu par l'organe d'actionnement 14, qui peut être un petit piston hydraulique, pneumatique ou autre.For the stamping of the sole 10, the platform 9 is used which can go up and down, under the action of a small hydraulic piston 11 or another driving member. The stamp 10 intended to form the sole is filled with plastic material, preferably by casting, before lifting and making contact with the upper stamp 2. The cover 12 of the upper stamp can be opened by tumbling, moved by the actuating member 14, which can be a small hydraulic, pneumatic or other piston.
Le support 1 de l'estampe 2, monté sur charnière en 8, dépend, pour l'ouverture et la fermeture, de la commande 13. The support 1 of the stamp 2, mounted on a hinge at 8, depends, for opening and closing, on the control 13.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8116983A FR2512332A1 (en) | 1981-09-08 | 1981-09-08 | Shoe moulding machine esp. for polyurethane foam - tilts between two positions for moulding upper and sole to eliminate bubbles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8116983A FR2512332A1 (en) | 1981-09-08 | 1981-09-08 | Shoe moulding machine esp. for polyurethane foam - tilts between two positions for moulding upper and sole to eliminate bubbles |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2512332A1 true FR2512332A1 (en) | 1983-03-11 |
Family
ID=9261958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8116983A Withdrawn FR2512332A1 (en) | 1981-09-08 | 1981-09-08 | Shoe moulding machine esp. for polyurethane foam - tilts between two positions for moulding upper and sole to eliminate bubbles |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2512332A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1009313A (en) * | 1963-12-23 | 1965-11-10 | Int Vulcanizing Corp | Apparatus for making shoes |
DE2020039A1 (en) * | 1970-04-24 | 1971-11-11 | Hoffmann Gmbh Gustav | Injection moulded soles for footwear mfe |
FR2369910A1 (en) * | 1976-11-08 | 1978-06-02 | Niagara Franco Losio Entr | Two=colour laminar polyurethane shoe soles prepn. - with press pivoting successive top tools into position for two separate curing cycles |
FR2389473A1 (en) * | 1977-05-06 | 1978-12-01 | Lorenzin Ind Mecc | Injection moulding machine - with bottom mould fixed and top mould movable and turnable through two right angles |
-
1981
- 1981-09-08 FR FR8116983A patent/FR2512332A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1009313A (en) * | 1963-12-23 | 1965-11-10 | Int Vulcanizing Corp | Apparatus for making shoes |
DE2020039A1 (en) * | 1970-04-24 | 1971-11-11 | Hoffmann Gmbh Gustav | Injection moulded soles for footwear mfe |
FR2369910A1 (en) * | 1976-11-08 | 1978-06-02 | Niagara Franco Losio Entr | Two=colour laminar polyurethane shoe soles prepn. - with press pivoting successive top tools into position for two separate curing cycles |
FR2389473A1 (en) * | 1977-05-06 | 1978-12-01 | Lorenzin Ind Mecc | Injection moulding machine - with bottom mould fixed and top mould movable and turnable through two right angles |
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