FR2490547A1 - Shoe sole moulds clamped to resist lateral thrust - for mfg. composite soles using high injection pressures - Google Patents
Shoe sole moulds clamped to resist lateral thrust - for mfg. composite soles using high injection pressures Download PDFInfo
- Publication number
- FR2490547A1 FR2490547A1 FR8020176A FR8020176A FR2490547A1 FR 2490547 A1 FR2490547 A1 FR 2490547A1 FR 8020176 A FR8020176 A FR 8020176A FR 8020176 A FR8020176 A FR 8020176A FR 2490547 A1 FR2490547 A1 FR 2490547A1
- Authority
- FR
- France
- Prior art keywords
- mold holder
- press
- face
- mold
- clamped
- 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.)
- Granted
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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
- B29D35/084—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 using exchangeable mould elements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
L'invention a pour objet des perfectionnements aux machines à mouler par injection des chaussures, ou bottes, à semelle en plusieurs parties. The invention relates to improvements in machines for injection molding shoes, or boots, with a sole in several parts.
Dans le cas des machines de fabrication de chaussures à semelle simple, le panneau qui porte le pavé de semelle unique est, en général, monté basculant et le couvercle du porte-moule est agencé pour retenir la porte en position de fermeture. De ce fait, et la poussée exercée sur la porte résultant de la pression de la tête d'injection étant assez faible, la simple adhérence des pièces de la presse sur le porte-moule suffit à empêcher tout déplace ment de celui-ci pendant l'injection. In the case of machines for manufacturing shoes with a single sole, the panel which carries the sole sole block is, in general, pivoted mounted and the cover of the mold holder is arranged to retain the door in the closed position. Therefore, and the thrust exerted on the door resulting from the pressure of the injection head being quite low, the simple adhesion of the parts of the press to the mold holder is sufficient to prevent any displacement thereof during the 'injection.
Dans la machine objet de la présente invention , il est nécessaire de prévoir des moules, ou pavés, de différents modèles pour la semelle. Ces pavés de semelle sont amenés successivement contre le moule de la chaussure, ou de la botte, proprement dit au moment de l'injection et ils doivent être appliqués avec une très grande force contre ce moule principal et son porte-moule. Une forte pression doit être exercés sur la porte qui n'est plus retenue sur le couvercle du porte-moule. Cette pression est obtenue par un patin pivotant, par exemple pour assurer une parfaite fermeture. On constate alors un léger glissement du portemoule, en dépit de la pression de serrage exercée par les mâchoires de presse. I1 en résulte une déformation sensible dans la zone de l'axe de rotation du plateau carrousel qui porte le porte-moule basculant. In the machine object of the present invention, it is necessary to provide molds, or pavers, of different models for the sole. These sole blocks are brought successively against the mold of the shoe, or of the boot, proper at the time of injection and they must be applied with great force against this main mold and its mold carrier. Strong pressure must be exerted on the door which is no longer retained on the lid of the mold holder. This pressure is obtained by a pivoting pad, for example to ensure perfect closure. There is then a slight sliding of the mold holder, despite the clamping pressure exerted by the press jaws. I1 results in a significant deformation in the area of the axis of rotation of the carousel plate which carries the tilting mold holder.
L'invention vise à remédier à cet inconvénient et elle prévoit, à cet effet, de doter la face supérieure du portemoule et la face de la mtchoire de presse qui s'applique sur cette face du porte-moule de moyens agencés pour empêcher le glissement du porte-moule par rapport à la presse, au moment de l'injection. The invention aims to remedy this drawback and it provides, for this purpose, to provide the upper face of the mold holder and the face of the press jaw which is applied to this face of the mold holder with means arranged to prevent slipping. of the mold carrier relative to the press, at the time of injection.
Dans une réalisation particulièrement avantageuse, ces moyens sont constitués par deux surfaces planes ménagées respectivement sur la face du porte-moule et sur celle de la mâchoire de presse, disposées de façon à venir en contact lorsque la mâchoire vient serrer le porte-moule et qui sont légèrement inclinées, par rapport à la direction de la poussée exercée pour assurer la fermeture de la porte, de telle manière que la pression de serrage de la presse comporte une composante dirigee en sens inverse de cette poussée. In a particularly advantageous embodiment, these means consist of two flat surfaces formed respectively on the face of the mold holder and on that of the press jaw, arranged so as to come into contact when the jaw comes to clamp the mold holder and which are slightly inclined, relative to the direction of the thrust exerted to ensure the closing of the door, so that the clamping pressure of the press has a component directed in the opposite direction of this thrust.
Dans une autre réalisation, ces moyens peuvent autre constitués par une plaque de matière à haut coefficient de frottement placée sur la face de la presse qui est en con- tact avec le porte-moule. In another embodiment, these means may further consist of a plate of material with a high coefficient of friction placed on the face of the press which is in contact with the mold holder.
Ces moyens peuvent encore être constitués par des clavettes fixées au porte-moule et coopérant avec des logements correspondants de la mchoîre de presse, la forme de ces clavettes étant telle qu'elles permettent le dégagement du porte-moule quand l'ensemble du moule tourne. These means can also be constituted by keys fixed to the mold holder and cooperating with corresponding housings of the press shoe, the shape of these keys being such that they allow the release of the mold holder when the whole mold rotates. .
Au lieu des clavettes ci-dessus, on peut également prévoir de doter le porte-moule d'une surface en métal déployé ou en nds d'abeille, dont les parties saillantes jouent le rôle des clavettes indiquées ci-deosus.-
A titre nullement limitatif, on a représenté au dessin annexé deux exemples de réalisation de l'invention, dessin sur lequel les figures 1 et 2 sont des vues schématiques en coupe verticale partielle dans la zone de serrage des mSchoires de presse dans le porte-moule.Instead of the above keys, it is also possible to provide the mold holder with an expanded metal or honeycomb surface, the protruding parts of which play the role of the keys indicated above.
By way of non-limiting example, there is shown in the accompanying drawing two embodiments of the invention, a drawing in which FIGS. 1 and 2 are schematic views in partial vertical section in the clamping area of the press jaws in the mold holder .
Comme on le voit sur la figure 1, la face supérieure du porte-moule 1 comporte une zone 2 inclinée d'avant en arrière par rapport d la direction horizontale dans laquelle s'exerce la pression F exercée sur la porte 3 support des pavés de semelle. La mâchoire supérieure de la presse comporte sur sa face inférieure une zone 5 parallèle à la zone 2 du porte-moule . Pour des raisons de clarté, l'inclinaison des surfaces 2 et 5 a été fortement exagérée sur la figure. As can be seen in FIG. 1, the upper face of the mold holder 1 has a zone 2 inclined from front to back relative to the horizontal direction in which the pressure F exerted on the door 3 supporting the paving stones is exerted. sole. The upper jaw of the press has on its lower face a zone 5 parallel to zone 2 of the mold holder. For reasons of clarity, the inclination of surfaces 2 and 5 has been greatly exaggerated in the figure.
La force P, résultant de la pression de serrage de la presse sur le porte-moule, comporte, du fait de l'inclinaison des zones 2 et 5, une composante r qui, comme on le voit, est de direction opposée a celle de la force F, et s'oppose ainsi au glissement vers l'arrière de l'ensemble du porte-moule 1. The force P, resulting from the clamping pressure of the press on the mold holder, comprises, due to the inclination of the zones 2 and 5, a component r which, as can be seen, is in the opposite direction to that of force F, and thus opposes the rearward sliding of the assembly of the mold holder 1.
Dans l'exemple de la figure 22 la face supérieure du porte-moule est munie de clavettes 6 qui coopèrent avec des logements 7 correspondants sur la mâchoire supérieure 4 de la presse. Ces clavettes s'opposent bien, elles aussi, au glissement du porte-moule. In the example of FIG. 22 the upper face of the mold holder is provided with keys 6 which cooperate with corresponding housings 7 on the upper jaw 4 of the press. These keys are also opposed to the sliding of the mold holder.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8020176A FR2490547B1 (en) | 1980-09-19 | 1980-09-19 | MEANS FOR PREVENTING THE SLIDING OF THE MOLDER IN RELATION TO AN INJECTION PRESS; APPLICATION TO THE MANUFACTURE OF SHOES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8020176A FR2490547B1 (en) | 1980-09-19 | 1980-09-19 | MEANS FOR PREVENTING THE SLIDING OF THE MOLDER IN RELATION TO AN INJECTION PRESS; APPLICATION TO THE MANUFACTURE OF SHOES |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2490547A1 true FR2490547A1 (en) | 1982-03-26 |
FR2490547B1 FR2490547B1 (en) | 1985-07-12 |
Family
ID=9246083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8020176A Expired FR2490547B1 (en) | 1980-09-19 | 1980-09-19 | MEANS FOR PREVENTING THE SLIDING OF THE MOLDER IN RELATION TO AN INJECTION PRESS; APPLICATION TO THE MANUFACTURE OF SHOES |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2490547B1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1139512A (en) * | 1955-12-29 | 1957-07-02 | Plastiflex | Plastic injection mold |
FR1306903A (en) * | 1961-11-23 | 1962-10-19 | Spezialmaschinen Co Herbert Lu | Method and molding device for the manufacture of plastic shoes |
FR1406612A (en) * | 1964-06-10 | 1965-07-23 | Machine for injection molding of various parts | |
FR1478011A (en) * | 1966-04-28 | 1967-04-21 | Mold holder in particular for making injected articles, such as footwear or other applications, as well as injection machines provided with this mold holder or the like | |
US3322423A (en) * | 1964-06-24 | 1967-05-30 | Popow Anatoliy | Vise jaw cover plate |
FR2007501A1 (en) * | 1968-04-24 | 1970-01-09 | Rieker & Co | Plastic injection mould for manufacture of shoe-uppers - esp for ski-boots |
DE2117534A1 (en) * | 1971-04-10 | 1972-10-19 | Krauss Maffei Ag | Mould opening - with piston-operated lever to separate mould halves |
-
1980
- 1980-09-19 FR FR8020176A patent/FR2490547B1/en not_active Expired
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1139512A (en) * | 1955-12-29 | 1957-07-02 | Plastiflex | Plastic injection mold |
FR1306903A (en) * | 1961-11-23 | 1962-10-19 | Spezialmaschinen Co Herbert Lu | Method and molding device for the manufacture of plastic shoes |
FR1406612A (en) * | 1964-06-10 | 1965-07-23 | Machine for injection molding of various parts | |
US3322423A (en) * | 1964-06-24 | 1967-05-30 | Popow Anatoliy | Vise jaw cover plate |
FR1478011A (en) * | 1966-04-28 | 1967-04-21 | Mold holder in particular for making injected articles, such as footwear or other applications, as well as injection machines provided with this mold holder or the like | |
FR2007501A1 (en) * | 1968-04-24 | 1970-01-09 | Rieker & Co | Plastic injection mould for manufacture of shoe-uppers - esp for ski-boots |
DE2117534A1 (en) * | 1971-04-10 | 1972-10-19 | Krauss Maffei Ag | Mould opening - with piston-operated lever to separate mould halves |
Also Published As
Publication number | Publication date |
---|---|
FR2490547B1 (en) | 1985-07-12 |
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TP | Transmission of property | ||
ST | Notification of lapse |