IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0099024
(2001-07-09)
|
등록번호 |
US-RE41572
(2010-09-13)
|
우선권정보 |
FR-95 04651(1995-04-19) |
국제출원번호 |
PCT/FR1996/000576
(2001-07-09)
|
§371/§102 date |
19971017
(19971017)
|
국제공개번호 |
WO96/033059
(1996-10-24)
|
발명자
/ 주소 |
- Briere, Dominique
- Coisy, Léon
- La Barre, Paul
- Santais, Pascal
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
47 |
초록
▼
The invention concerns a device for producing thermoplastic containers, in particular bottles, by the blow-molding or stretch blow-molding of a preheated preform. The device comprises at least one mould consisting of two half-molds (2) each supported by a mould carrier, the two mould carriers being
The invention concerns a device for producing thermoplastic containers, in particular bottles, by the blow-molding or stretch blow-molding of a preheated preform. The device comprises at least one mould consisting of two half-molds (2) each supported by a mould carrier, the two mould carriers being movable relative to each other. Each half-mould (2) comprises a shell holder (9), supported by the respective mould carrier, and a shell (7) which is equipped with a half-impression (8) of the container to be obtained and can be rendered integral in a detachable manner with its shell holder (9) by rapid-fastening means (19-23). The shell (7) and the shell holder (9) are of complementary shapes such that they contact each other at least partially for heat conduction purposes whilst the pipes and connections for circulating and/or heating fluids are provided in the shell holder alone.
대표청구항
▼
We claim: 1. Device for manufacturing containers, made of a thermoplastic by blow molding or stretch-blow molding of a preheated preform, the said device including at least one mold (1) consisting of two half-molds (2) respectively supported by two mold carriers (3) which are made in the form of e
We claim: 1. Device for manufacturing containers, made of a thermoplastic by blow molding or stretch-blow molding of a preheated preform, the said device including at least one mold (1) consisting of two half-molds (2) respectively supported by two mold carriers (3) which are made in the form of enveloping structures and which can move one with respect to the other, characterized in that each half-mold (2) comprises a shell holder (9) supported by the respective mold carrier (3) and a shell (7) which is provided with a half-impression (8) of the container to be obtained and which can be removably fastened to its shell holder (9) by quick-fixing means (19-23), the shell (7) and the shell holder (9) being in complementary shapes in order to be in at least partial mutual thermal-conduction contact while the pipes and connections for the circulation of cooling and/or heating fluids (11, 12) are provided exclusively in the shell holder. 2. Device according to claim 1, characterized in that the mating faces (14, 15) of the shell (7) and of the shell holder (9) are in total thermal-conduction contact. 3. Device according to claim 1, characterized in that the mating faces (14, 15) of the shell (7) and of the shell holder (9) are in partial thermal-conduction contact by leaving regions of limited thermal conduction. 4. Device according to claim 1, characterized in that the mutually contacting mating faces (14, 15) of the shell (7) and of the shell holder (9) are approximately semicylindrical surfaces of revolution with an axis approximately parallel to the axis of the impression (8) of the container to be manufactured. 5. Device according to claim 1, characterized in that the mutually contacting mating faces (14, 15) of the shell and of the shell holder are provided with axial mutual-positioning means (16, 17). 6. Device according to claim 5, characterized in that the axial mutual-positioning means comprise a system of one or more mating ribs (16) and grooves (17) extending circumferentially. 7. Device according to claim 1, characterized in that the means (19-23) for quickly fixing the shell (7) to the shell holder (9) are provided on their respective parting faces (13, 18). 8. Device according to claim 4, characterized in that the means (19-23) for quickly fixing the shell and the shell holder are located on their respective edges parallel to the axis of the impression. 9. Device according to claim 8, characterized in that the quick-fixing means (19-23) comprise, on one side, at least one stop for positioning the parting face of the shell with respect to the parting face of the shell holder and, on the other side, quick-screwing means (23) on the parting face (18) of the shell holder (9) with a clamping surface (21) projecting from the parting face (19) of the shell. 10. Device according to claim 9, in which the mold carriers are rotationally pivoted with respect to each other whereby at least one stop is located on the pivot (4) side of the mold carriers (3) and the quick-screwing means are located on the opposite side. 11. Device according to claim 1, characterized in that the shell holder (9) is also provided with members (24) for guiding the half-molds in order to close the mold. 12. Device according to claim 1, characterized in that at least one of the shell holders is equipped with pressure-compensating means suitable for maintaining the sealed closure of the mold during blow molding. 13. Device according to claim 1, characterized in that the shell holders (9) are equipped with a number of fluid pipes, by virtue of which it is possible to create suitable circuits for a given manufacture with a given impression. 14. Device according to claim 1, wherein said containers are bottles. 15. A mold assembly for use in manufacturing molded thermoplastic containers comprising: two mold shells each containing a half-impression of a substantial portion of the container to be molded; two mold shell holders each defining a cavity for receiving each said respective mold shell such that each said respective mold shell is in at least partial mutual thermal-conduction contact with its respective shell holder, said shell holders being shaped to be supported by two mold carriers made in the form of enveloping structures movable one with respect to the other; and at least two axial positioning assemblies by which said mold shells are fixed in an axial direction with respect to said mold shell holders. 16. The mold assembly of claim 15, wherein each of said at least two axial positioning assemblies comprises at least one meshing male coupling member disposed on at least one of said mold shells and mold shell holders, and at least one complementary meshing female coupling member disposed on at least one of said mold shells and mold shell holders. 17. The mold assembly of claim 15, wherein said mold shell holders further comprise a number of internal fluid pipes and connections for the circulation of cooling and/or heating fluids. 18. The mold assembly of claim 15, wherein at least one of said mold shells and/or mold shell holders define at least one cavity at the interface between said mold shells and mold shell holders into which pressurized fluid suitable for maintaining the sealed closures of the mold assembly may be interposed during the molding process. 19. The mold assembly of claim 16, wherein said meshing male and female coupling members further comprise a system of one or more mating ribs and grooves in said mold shells and mold shell holders. 20. An article for use in manufacturing molded thermoplastic containers comprising: a mold shell containing an impression of a substantial portion of a container; and at least two coupling members by which said mold shell can be fixed in an axial direction with respect to a mold shell holder, said shell holder defining a cavity for receiving said mold shell such that said mold shell is in at least partial mutual thermal-conduction contact with said shell holder, said shell holder being shaped to be supported by one of a pair of mold carriers made in the form of enveloping structures movable one with respect to the other. 21. The article of claim 20, wherein said impression further comprises a neck portion, a sidewall portion, and a base portion. 22. The article of claim 20, wherein each of said at least two coupling members further comprises either a groove or a rib disposed about the exterior surface of said mold shell. 23. The article of claim 22, wherein said groove or rib is proximate a neck portion of said mold shell. 24. The article of claim 20, further comprising: a parting face adjacent a generally mating face of said shell holder; and at least one clamping surface projecting from said parting face. 25. A mold shell holder assembly for use in manufacturing molded thermoplastic containers comprising: two mold shell holders each defining a cavity shaped to receive a mold shell in at least partial mutual thermal-conduction respective contact; said shell holders being shaped to be supported by two mold carriers made in the form of enveloping structures movable one with respect to the other; and at least one quick-fixing locking member positioned on each of said mold shell holders, said quick-fixing locking member being configured to be engaged by a respective one of said mold shells for removably securing said one mold shell to a respective one of said mold shell holders, said quick-fixing locking member including a selectively retractable locking member portion. 26. The mold shell holder assembly of claim 25, further comprising: at least two axial positioning assemblies positioned along each of said shell holders by which said shell holder may be fixed in an axial direction with respect to a respective one of said mold shells. 27. A mold shell holder assembly for use in manufacturing molded thermoplastic containers comprising: two mold shell holders each defining a cavity shaped to receive a mold shell in at least partial mutual thermal-conduction respective contact; said shell holders being shaped to be supported by two mold carriers made in the form of enveloping structures movable one with respect to the other; and at least two axial positioning assemblies positioned along each of said shell holders by which said shell holder may be fixed in an axial direction with respect to a respective one of said mold shells.
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