FR2395121A1 - Moule pour l'obtention d'elements tubulaires elastiques - Google Patents
Moule pour l'obtention d'elements tubulaires elastiquesInfo
- Publication number
- FR2395121A1 FR2395121A1 FR7720218A FR7720218A FR2395121A1 FR 2395121 A1 FR2395121 A1 FR 2395121A1 FR 7720218 A FR7720218 A FR 7720218A FR 7720218 A FR7720218 A FR 7720218A FR 2395121 A1 FR2395121 A1 FR 2395121A1
- Authority
- FR
- France
- Prior art keywords
- moulding
- core
- mandrel
- static part
- hollow rubber
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
- B29C33/442—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with mechanical ejector or drive means therefor
- B29C33/444—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with mechanical ejector or drive means therefor for stripping articles from a mould core, e.g. using stripper plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
- B29C33/46—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles using fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/43—Removing or ejecting moulded articles using fluid under pressure
- B29C45/435—Removing or ejecting moulded articles using fluid under pressure introduced between a mould core and a hollow resilient undercut article, e.g. bellows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/703—Bellows
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
La présente invention concerne un moule pour l'obtention d'éléments tubulaires élastiques tels que soufflets, manchons et analogues comprenant, à la manière connue, deux parties jointives susceptibles d'être dissociées, creusées chacune d'une demi-empreinte, entre lesquelles est inséré un noyau, caractérisé par le fait que, après ouverture des deux parties jointives du moule, le démoulage de la pièce qui habille le noyau, est réalisé sous l'action de deux effets mécanique et pneumatique, un premier effet mécanique de traction tendant à extraire coaxialement la pièce moulée du noyau, tandis qu'un second effet, pneumatique, tend à décoller simultanément la paroi interne de la pièce du noyau qu'elle enserre. La rapidité avec laquelle s'effectue le décollage et l'arrachement de la pièce moulée permet d'obtenir des cadences de fabrication fort intéressantes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7720218A FR2395121A1 (fr) | 1977-06-23 | 1977-06-23 | Moule pour l'obtention d'elements tubulaires elastiques |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7720218A FR2395121A1 (fr) | 1977-06-23 | 1977-06-23 | Moule pour l'obtention d'elements tubulaires elastiques |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2395121A1 true FR2395121A1 (fr) | 1979-01-19 |
FR2395121B1 FR2395121B1 (fr) | 1980-12-19 |
Family
ID=9192813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7720218A Granted FR2395121A1 (fr) | 1977-06-23 | 1977-06-23 | Moule pour l'obtention d'elements tubulaires elastiques |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2395121A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0282763A2 (fr) * | 1987-03-16 | 1988-09-21 | Zeller Plastik GmbH | Manchon fileté en plastique |
WO1996014198A1 (fr) * | 1994-11-02 | 1996-05-17 | The Procter & Gamble Company | Procede de demoulage de pieces de soufflets a extremites ouvertes d'un moule d'injection |
WO1997018076A1 (fr) * | 1995-11-13 | 1997-05-22 | The Procter & Gamble Company | Procede permettant de demouler une partie de soufflet a extremites ouvertes situee dans un moule pour coulage par injection |
CN114536667A (zh) * | 2022-02-23 | 2022-05-27 | 安徽中鼎橡塑制品有限公司 | 一种波纹管注塑模具 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1096715A (fr) * | 1953-12-31 | 1955-06-23 | Procédé de moulage, par injection, de tubes souples dits <<tubes à presser>>, pour prodits pâteux ou autres et appareil pour la mise en oeuvre du procédé | |
NL6503684A (fr) * | 1965-03-23 | 1966-09-26 | ||
FR2076587A5 (en) * | 1970-01-20 | 1971-10-15 | Plastimonde | Demoulding by air injection - through the punch in moulds without taper |
GB1253539A (en) * | 1968-09-05 | 1971-11-17 | Wellman Engineering Corp Ltd | Improvements in or relating to injection moulding |
US3853451A (en) * | 1973-08-31 | 1974-12-10 | Cities Service Co | Stripper device for molded articles |
DE2540519A1 (de) * | 1975-09-11 | 1977-03-24 | Robert Hanning | Verfahren und vorrichtung zum spritzgiessen von gegenstaenden aus thermoplastischem kunststoff |
-
1977
- 1977-06-23 FR FR7720218A patent/FR2395121A1/fr active Granted
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1096715A (fr) * | 1953-12-31 | 1955-06-23 | Procédé de moulage, par injection, de tubes souples dits <<tubes à presser>>, pour prodits pâteux ou autres et appareil pour la mise en oeuvre du procédé | |
NL6503684A (fr) * | 1965-03-23 | 1966-09-26 | ||
GB1253539A (en) * | 1968-09-05 | 1971-11-17 | Wellman Engineering Corp Ltd | Improvements in or relating to injection moulding |
FR2076587A5 (en) * | 1970-01-20 | 1971-10-15 | Plastimonde | Demoulding by air injection - through the punch in moulds without taper |
US3853451A (en) * | 1973-08-31 | 1974-12-10 | Cities Service Co | Stripper device for molded articles |
DE2540519A1 (de) * | 1975-09-11 | 1977-03-24 | Robert Hanning | Verfahren und vorrichtung zum spritzgiessen von gegenstaenden aus thermoplastischem kunststoff |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0282763A2 (fr) * | 1987-03-16 | 1988-09-21 | Zeller Plastik GmbH | Manchon fileté en plastique |
EP0282763A3 (en) * | 1987-03-16 | 1989-11-15 | Zeller Plastik Koehn, Grabner & Co. | Plastic threaded sleeve |
WO1996014198A1 (fr) * | 1994-11-02 | 1996-05-17 | The Procter & Gamble Company | Procede de demoulage de pieces de soufflets a extremites ouvertes d'un moule d'injection |
WO1997018076A1 (fr) * | 1995-11-13 | 1997-05-22 | The Procter & Gamble Company | Procede permettant de demouler une partie de soufflet a extremites ouvertes situee dans un moule pour coulage par injection |
US5683644A (en) * | 1995-11-13 | 1997-11-04 | The Procter & Gamble Company | Method for stripping open ended bellows part from injection mold |
CN114536667A (zh) * | 2022-02-23 | 2022-05-27 | 安徽中鼎橡塑制品有限公司 | 一种波纹管注塑模具 |
CN114536667B (zh) * | 2022-02-23 | 2023-10-13 | 安徽中鼎橡塑制品有限公司 | 一种波纹管注塑模具 |
Also Published As
Publication number | Publication date |
---|---|
FR2395121B1 (fr) | 1980-12-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB989124A (en) | Process and apparatus for moulding hardenable plastics in a vacuum | |
GB882788A (en) | Process and apparatus for manufacturing bottles and the like neck-provided articles from thermoplastic material | |
FR2395121A1 (fr) | Moule pour l'obtention d'elements tubulaires elastiques | |
ES2001406A6 (es) | Un macho replegable para un molde | |
GB1044533A (en) | Process and apparatus for the manufacture of cellular materials | |
JPS5624132A (en) | Blow molding method for synthetic resin hollow product with base cup | |
GB1447548A (en) | Method of manufacturing thin-walled hollow articles of poly tetrafluorethylene apparatus for perfomring the method and articles manufactured by the method | |
JPS5490261A (en) | Injection mold | |
CA1028811A (fr) | Noyau creux rigide servant au moulage par coulee ou par injection des pneumatiques | |
GB909555A (en) | Improvements in or relating to the manufacture of tubes of thermoplastic material | |
EP0257865A3 (en) | Tyre construction method | |
GB914445A (fr) | ||
JPS55156033A (en) | Skin attached foamed blow molded article method of fabricating the same | |
JPS57116629A (en) | Production of bushing | |
GB682539A (en) | Improvements in or relating to moulds for producing articles of resilient plastic material | |
JPS5243222A (en) | Interrior material for automobile or the like | |
JPS5699634A (en) | Manufacturing apparatus for composite molded foam body | |
GB1123702A (en) | Mould core for the manufacture of hollow resilient articles of elastomeric material | |
JPS56135033A (en) | Molding of synthetic resin product | |
GB844973A (en) | Method and apparatus for manufacture of air springs | |
JPS55270A (en) | Plastic molding method | |
GB559054A (en) | A resilient product adapted to serve as a substitute for rubber, and method of making same | |
ES228165A1 (es) | PROCEDIMIENTO PARA MOLDEAR CON MATERIALES PLáSTICOS CUERPOS HUECOS DE SECCIoN NO UNIFORME MEDIANTE NUCLEO INFLABLE Y ELEMENTOS FLEXIBLES QUE SE INSERTAN EN EL MISMO. | |
JPS5720330A (en) | Production of double-layer vessel such as container or the like | |
GB1047203A (fr) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |