There is provided a stripper assembly (212) for use in a mold stack (202) for forming a preform (210) suitable for blow-molding into a final-shaped container. The stripper assembly (212) comprises a stripper plate (214) connectable, in use, to a stripper plate actuator; neck rings (220) configured t
There is provided a stripper assembly (212) for use in a mold stack (202) for forming a preform (210) suitable for blow-molding into a final-shaped container. The stripper assembly (212) comprises a stripper plate (214) connectable, in use, to a stripper plate actuator; neck rings (220) configured to cooperate to define a portion a neck region (226) of the preform (210); a stripper ring (230) configured to define at least a portion of a top sealing surface of the neck region (226) of the preform (210); the stripper plate (214) being configured to actuate the neck rings (220) and the stripper ring (230), in unison, along substantially the whole length of a complete ejection path, which is substantially parallel to a longitudinal axis of the mold stack (202); and wherein the neck rings (220) are configured for movement in a direction substantially perpendicular to the longitudinal axis of the mold stack, over at a portion of the complete ejection path, the stripper ring (230) having an air channel (236) configured to directed a flow of fluid towards the preform.
대표청구항▼
1. A stripper assembly (212) for use in a mold stack (202) for forming a preform (210) suitable for blow-molding into a final-shaped container, the stripper assembly (212) comprising: a stripper plate (214) connectable, in use, to a stripper plate actuator;neck rings (220) configured to cooperate to
1. A stripper assembly (212) for use in a mold stack (202) for forming a preform (210) suitable for blow-molding into a final-shaped container, the stripper assembly (212) comprising: a stripper plate (214) connectable, in use, to a stripper plate actuator;neck rings (220) configured to cooperate to define a portion a neck region (226) of the preform (210);a stripper ring (230) configured to define at least a portion of a top sealing surface of the neck region (226) of the preform (210);the stripper plate (214) being configured to actuate the neck rings (220) and the stripper ring (230), in unison, along substantially the whole length of a complete ejection path, which is substantially parallel to a longitudinal axis of the mold stack (202); and whereinthe neck rings (220) are configured for movement in a direction substantially perpendicular to the longitudinal axis of the mold stack, over at a portion of the complete ejection path,the stripper ring (230) having an air channel (236) configured to direct a flow of fluid towards the preform. 2. The stripper assembly (212) of claim 1, wherein the stripper ring (230) is coupled to the stripper plate (214) in a floatable arrangement. 3. The stripper assembly (212) of claim 2, wherein the stripper assembly (212) includes a neck ring slide (218) and the neck rings (220) are coupled to the neck ring slide (218); and wherein the stripper assembly (212) further comprisesa wear plate (216) disposed between the stripper plate (214) and the neck ring slide (218); and wherein, in usethe stripper plate (214) and the wear plate (216) define a pocket (232); and wherein the stripper ring (230) comprises an annular step (234) complementary in shape to the pocket (232); and wherein, in usethe stripper plate (214) and the wear plate (216) trap the annular step (234) within the pocket (232). 4. The stripper assembly (212) of claim 1, wherein the stripper plate (214) is coupled, in use, to the stripper plate actuator which is configured to actuate the stripper plate (214) along the longitudinal axis of the mold stack (202). 5. The stripper assembly (212) of claim 1, wherein the stripper assembly (212) includes a neck ring slide (218) and the neck rings (220) are coupled to the neck ring slide (218); and wherein the neck ring slide (218) is coupled, in use, to a neck ring slide actuator and wherein the neck ring slide actuator is configured to actuate the neck ring slide (218) in a direction substantially perpendicular to the longitudinal axis of the mold stack (202). 6. The stripper assembly (212) of claim 1, wherein the stripper assembly (212) further comprises a wear plate (216) disposed between the stripper plate (214) and a neck ring slide (218); and wherein the wear plate (216) defines an air supply channel (240) and wherein the air channel (236) is in fluid communication with the air supply channel (240). 7. The stripper assembly (212) of claim 1, wherein the stripper plate (214) defines an air supply channel (340) and wherein the air channel (336) is in fluid communication with the air supply channel (240). 8. The stripper assembly (212) of claim 1, wherein the so-directed flow of fluid is configured to perform at least one function of: (i) assisting in stripping of the preform (210) off a core insert (206); (ii) preventing vacuum build up or friction between the preform (210) and the core insert (206); (iii) assisting in the transfer of the preform (210) from the core insert (206) into a downstream handling device. 9. A stripper ring (230) configured to be installed, in use, as a part of a stripper assembly (212) for use in a mold stack (202) for forming a preform (210) suitable for blow-molding into a final-shaped container, the stripper assembly including a stripper plate (214) connectable, in use, to a stripper plate actuator; neck rings (220) configured to cooperate to define a portion a neck region (226) of the preform (210); a stripper ring (230) configured to define at least a portion of a top sealing surface of the neck region (226) of the preform (210); the stripper plate (214) being configured to actuate the neck rings (220) and the stripper ring (230), in unison, along substantially the whole length of a complete ejection path, which is substantially parallel to a longitudinal axis of the mold stack (202); and wherein the neck rings (220) are configured for movement in a direction substantially perpendicular to the longitudinal axis of the mold stack, over at a portion of the complete ejection path, the stripper ring (230) comprising: an air channel (336) configured to direct a flow of fluid towards the preform. 10. The stripper ring (230) of claim 9, wherein the stripper ring (230) is coupled to the stripper plate (214) in a floatable arrangement. 11. The stripper ring (230) of claim 10, wherein the stripper assembly (212) includes a neck ring slide (218) and the neck rings (220) are coupled to the neck ring slide (218); and wherein the stripper assembly (212) further comprisesa wear plate (216) disposed between the stripper plate (214) and the neck ring slide (218); and wherein, in usethe stripper plate (214) and the wear plate (216) define a pocket (232); and wherein the stripper ring (230) comprises an annular step (234) complementary in shape to the pocket (232); and wherein, in usethe stripper plate (214) and the wear plate (216) trap the annular step (234) within the pocket (232). 12. The stripper ring (230) of claim 9, wherein the stripper plate (214) is coupled, in use, to the stripper plate actuator which is configured to actuate the stripper plate (214) along the longitudinal axis of the mold stack (202). 13. The stripper ring (230) of claim 9, wherein the stripper assembly (212) includes a neck ring slide (218) and the neck rings (220) are coupled to a neck ring slide (218); and wherein the neck ring slide (218) is coupled, in use, to a neck ring slide actuator and wherein the neck ring slide actuator is configured to actuate the neck ring slide (218) in a direction substantially perpendicular to the longitudinal axis of the mold stack (202). 14. The stripper ring (230) of claim 9, wherein the stripper assembly (212) further comprises a wear plate (216) disposed between the stripper plate (214) and the neck ring slide (218); and wherein the wear plate (216) defines an air supply channel (240) and wherein the air channel (236) is in fluid communication with the air supply channel (240). 15. The stripper ring (230) of claim 9, wherein the stripper plate (214) defines an air supply channel (340) and wherein the air channel (336) is in fluid communication with the air supply channel (240). 16. The stripper ring (230) of claim 9, wherein the flow of fluid is configured to perform at least one function of: (i) assisting in stripping of the preform (210) off a core insert (206); (ii) preventing vacuum build up or friction between the preform (210) and the core insert (206); (iii) assisting in the transfer of the preform (210) from the core insert (206) into a downstream handling device.
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이 특허에 인용된 특허 (6)
Amin, Nadeem; Schmitz, Thomas; Lahe, Harvy; Ferenc, Stephen, Injection molding system and method using cavity flange and neck ring insert.
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