IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0202799
(2010-11-17)
|
등록번호 |
US-8740610
(2014-06-03)
|
국제출원번호 |
PCT/CA2010/001799
(2010-11-17)
|
§371/§102 date |
20110823
(20110823)
|
국제공개번호 |
WO2011/063499
(2011-06-03)
|
발명자
/ 주소 |
- Halter, Christophe
- Glaesener, Pierre
- Styga, François
|
출원인 / 주소 |
- Huskey Injection Molding Systems Ltd.
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
49 |
초록
▼
An in-mold shutter (140) for embedding in an injection mold (100, 200, 300) is described herein. The in-mold shutter (140, 240, 340, 440, 540) includes a shutter actuator (148, 548) that is configured to selectively engage a first mold shoe (130) of the injection mold (100, 200, 300) with a platen o
An in-mold shutter (140) for embedding in an injection mold (100, 200, 300) is described herein. The in-mold shutter (140, 240, 340, 440, 540) includes a shutter actuator (148, 548) that is configured to selectively engage a first mold shoe (130) of the injection mold (100, 200, 300) with a platen of a mold clamping assembly (996) to hold the first mold shoe (130) in an extended, (E), along a mold-stroke axis (X), during a step of molding a first molded article (102A) in the injection mold (100, 200, 300). Also described herein is a molded article transfer device (150, 250) for use with the injection mold (100, 200, 300). The molded article transfer device (150, 250) includes a shuttle (154) that is slidably arranged, in use, within the injection mold (100, 200, 300). The shuttle (154) defines a first aperture (156A), at least in part, that alternately accommodates: (i) a first mold stack (106A, 206A, 306A) arranged therein; and (ii) a first molded article (102A) received therein with opening of the first mold stack (106A, 206A, 306A).
대표청구항
▼
1. An injection mold, comprising: a first mold half having a first stack portion of a first mold stack,a second mold half having a second stack portion of the first mold stack;a molded article transfer device having a shuttle that includes a first aperture that is configured for receiving the first
1. An injection mold, comprising: a first mold half having a first stack portion of a first mold stack,a second mold half having a second stack portion of the first mold stack;a molded article transfer device having a shuttle that includes a first aperture that is configured for receiving the first stack portion therein during molding of a first molded article and subsequently the first molded article with retraction of the first stack portion therefrom and with ejection thereof from the first stack portion. 2. The injection mold of claim 1, further comprising: an in-mold shutter;the first mold half includes a first mold shoe with the first stack portion of the first mold stack connected thereto;the second mold half includes a second mold shoe with the second stack portion of the first mold stack connected thereto;the in-mold shutter being configured to position, in use, the first stack portion and the second stack portion relative to each other, along a mold-stroke axis, to close and open a molding cavity that is defined therebetween for molding and ejecting, respectively, the first molded article;the molded article transfer device being configured to receive and transfer the first molded article with opening of the molding cavity. 3. The injection mold of claim 2, wherein: the shuttle is slidably arranged, in use, within the injection mold;the shuttle defining the first aperture, at least in part, that alternately accommodates: (i) the first mold stack arranged therein during molding of the first molded article; and (ii) the first molded article received therein with opening of the first mold stack to retract the first mold stack from the first aperture;the first molded article being transferable, in use, within the first aperture with shuttling movement of the shuttle. 4. The injection mold of claim 3, wherein: the shuttle is slidably arranged between the first mold shoe and the second mold half of the injection mold to accommodate the shuttling movement therebetween, in use, along a shuttling axis that is generally perpendicular to the mold-stroke axis;the first aperture is configured to accommodate, when positioned in a first receiving position, the first stack portion of the first mold stack being retractably arranged therein during molding, in use, of the first molded article; andthe first aperture is further configured to receive, when positioned in the first receiving position, the first molded article therein with retraction of the first stack portion therefrom and with ejection thereof from the first stack portion;the first molded article being transferred, in use, within the first aperture, with the shuttling movement of the shuttle from the first receiving position to a first transfer position. 5. The injection mold of claim 3, wherein: the shuttle is slidably arranged to accommodate the shuttling movement thereof with the first mold half and the second mold half of the injection mold being positioned in a mold closed configuration. 6. The injection mold of claim 4, wherein: the molded article transfer device further includes:a first barricade that is associated, in use, with one of the first mold half and the second mold half;the first barricade is configured to cooperate with the shuttle to further define the first aperture when positioned in the first receiving position. 7. The injection mold of claim 6, wherein: the shuttle defines a first channel;the first channel and the first barricade are configured to cooperate, in use, to define the first aperture with the first barricade being positioned within the first channel, with positioning, in use, of the first channel into the first receiving position, by the shuttling movement of the shuttle, wherein the first channel is positioned to accommodate the first stack portion being retractably arranged therein during molding of the first molded article;the first channel is further configured to accommodate the first molded article passing therealong, towards an exit thereof, with positioning, in use, of the first channel into the first transfer position, by the shuttling movement of the shuttle, wherein the first channel is positioned beside the first stack portion and the first barricade. 8. The injection mold of claim 7, wherein: the shuttle further defines a second channel that is adjacent to, and generally parallel with, the first channel, wherein with one of the first channel and the second channel being positioned in the first receiving position a remaining one of the first channel and the second channel is positioned in the first transfer position;the second channel and the first barricade, are configured to cooperate, in use, to define a second aperture with the first barricade being positioned within the second channel, with positioning, in use, of the second channel into the first receiving position, by the shuttling movement of the shuttle, wherein the second channel is positioned to accommodate the first stack portion being retractably arranged therein during molding of another of the first molded article;the second channel is further configured to accommodate the another of the first molded article passing therealong, towards the exit thereof, with positioning, in use, of the second channel into the first transfer position, by the shuttling movement of the shuttle, wherein the second channel is positioned beside the first stack portion and the first barricade. 9. The injection mold of claim 8, wherein: the first channel and the second channel are defined between cooperating pairs of guide bars that are associated with the shuttle;the pairs of guide bars define gaps therein through which the first barricade is slid, in use, with relative movement of the shuttle with respect to the first barricade. 10. The injection mold of claim 8, wherein: the injection mold is configured to simultaneously mold a plurality of molded articles using a first column of mold stacks that includes the first mold stack with which to mold the first molded article and a second mold stack with which to mold a second molded article;the molded article transfer device further comprises a second barricade that is associated, in use, with one of the first mold half and the second mold half;the first channel and the second barricade are configured to cooperate, in use, to define a third aperture with the second barricade being positioned within the first channel, with positioning, in use, of the first channel into the first receiving position, by the shuttling movement of the shuttle, wherein the first channel is positioned to accommodate the first stack portion of the second mold stack being retractably arranged therein during molding of the second molded article;the first channel is further configured to accommodate the second molded article passing therealong, towards the exit thereof, with positioning, in use, of the first channel into the first transfer position, by the shuttling movement of the shuttle, wherein the first channel is positioned beside the first column of mold stacks, the first barricade and the second barricade;the second channel and the second barricade are configured to cooperate, in use, to define a fourth aperture with the second barricade being positioned within the second channel, with positioning, in use, of the second channel into the first receiving position, by the shuttling movement of the shuttle, wherein the second channel is positioned to accommodate the first stack portion of the second mold stack being retractably arranged therein during molding of another of the second molded article;the second channel is further configured to accommodate the another of the second molded article passing therealong, towards the exit thereof, with positioning, in use, of the second channel into the first transfer position, by the shuttling movement of the shuttle, wherein the second channel is positioned beside the first stack portion of the first column of mold stacks, the first barricade and the second barricade. 11. The injection mold of claim 7, wherein: the molded article transfer device further includes:a base plate upon which the shuttle is slidably connected for the shuttling movement thereof, in use, along the shuttling axis;the base plate being associated, in use, with one of the first mold half and the second mold half of the injection mold. 12. The injection mold of claim 11, wherein: the base plate is mounted to an ejector box of the in-mold shutter;the ejector box defines a space within which the first mold shoe 130 may be moved, in use, along the mold-stroke axis. 13. The injection mold of claim 11, wherein: the base plate defines a piston cylinder and a channel with which to connect, in use, the piston cylinder with a source or sink of a working fluid;the first stack portion of the first mold stack includes a stripper sleeve which to eject, in use, the first molded article therefrom, and wherein the stripper sleeve includes a piston portion that is slidably received, in use, in the piston cylinder of the base plate. 14. The injection mold of claim 2, wherein: the in-mold shutter includes:a shutter member; anda link member;one of the shutter member and the link member is associated, in use, with one of a moving platen and a stationary platen of a injection molding system;a remaining one of the shutter member and the link member is associated, in use, with the first mold shoe;the shutter member being alternately selectively positioned, in use, in: (i) an open position, wherein the shutter member is disengaged from the link member whereby the first mold shoe may be moved, in use, along the mold-stroke axis; and (ii) a shut position, wherein the shutter member is engaged with the link member, whereby the first mold shoe is engaged with the one of the moving platen and the stationary platen. 15. The injection mold of claim 14, wherein: the in-mold shutter further includes:a support base that is fixedly connected, in use, to the one of the moving platen and the stationary platen, wherein the one of the shutter member and the link member is connected thereto. 16. The injection mold of claim 15, wherein: the shutter member slidably coupled to the support base and the link member is connected to a first core retainer of the first mold shoe. 17. The injection mold of claim 15, wherein: the in-mold shutter further includes an ejector box with which to couple the molded article transfer device to the support base;the ejector box defines a space within which the first mold shoe 130 may be moved, in use, along the mold-stroke axis. 18. The injection mold of claim 17, wherein: the in-mold shutter further includes:a guide member that is arranged, in use, between the support base and the first mold shoe and that is configured to guide the first mold shoe during movement thereof along the mold-stroke axis. 19. The injection mold of claim 15, wherein: the shutter member defines a first clearance aperture that is configured to accommodate the link member being arranged therein, in use, with the shutter member being positioned in the open position and with movement of the first mold shoe, along the mold-stroke axis, towards a retracted position. 20. The injection mold of claim 19, wherein: the first clearance aperture is structured to extend through the shutter member;the support base defines a second clearance aperture that is aligned, in use, with the first clearance aperture, with positioning of the shutter member into the open position; andthe second clearance aperture is configured to accommodate the link member being arranged therein, in use, with the shutter member being positioned in the open position and with the movement of the first mold shoe, along the mold-stroke axis, towards the retracted position. 21. The injection mold of claim 5, wherein: the first stack portion of the first mold stack includes:an inner core an outer core, and a stripper sleeve that cooperate, in use, to define the molding cavity;the outer core is slidably arranged around the inner core to accommodate, in use, relative movement thereof along the mold-stroke axis; andthe stripper sleeve is slidably arranged around the outer core to accommodate, in use, the relative movement thereof along the mold-stroke axis. 22. The injection mold of claim 21, wherein: the first stack portion of the first mold stack further includes a resilient member that is arranged between the inner core and the outer core, and wherein the resilient member is arranged to bias the outer core towards a forward limit of travel with respect to the stripper sleeve that corresponds with their relative arrangement during molding of the first molded article. 23. The injection mold of claim 22, wherein: the outer core and the inner core are slidably retained together to limit, in use, the relative movement thereof, in use, along the mold-stroke axis. 24. The injection mold of claim 23, wherein: the inner core defines a bayonet and the outer core defines a bayonet pocket, the bayonet and the bayonet pocket is configured to cooperate, when engaged, to slidably retain the outer core about the inner core. 25. The injection mold of claim 21, wherein: the first mold shoe includes:a first core retainer and a stripper retainer that are slidably connected together to accommodate the relative movement thereof, in use, along the mold-stroke axis;the inner core is connected to the first core retainer; andthe stripper sleeve is arranged within the stripper retainer. 26. The injection mold of claim 25, further comprising: a stripper actuator that connects the molded article transfer device and the stripper retainer, the stripper actuator being operable, in use, to drive the relative movement thereof along the mold-stroke axis. 27. The injection mold of claim 25, wherein: a passageway is defined through the stripper retainer;the stripper sleeve is fixedly arranged in the passageway, wherein the stripper sleeve is movable, in use, along the mold-stroke axis, between a stripper sleeve molding position and an ejection position, with the relative movement between the first core retainer and the stripper retainer;the outer core is slidably arranged within the passageway to accommodate, in use, movement thereof relative to the stripper sleeve, along the mold-stroke axis, with the movement of the outer core from an outer core molding position to a stripping position. 28. The injection mold of claim 27, wherein: a forward limit of travel of the outer core is provided through cooperation of a shoulder that is defined on the outer core and a step that is defined in the passageway across a bottom of a flange portion of the stripper sleeve. 29. The injection mold of claim 28, wherein: the stripper retainer includes a base plate, an intermediate plate, and a top plate that are fastened together, in use, with the passageway being defined therethrough, the flange portion of the stripper sleeve is retained between the intermediate plate and the top plate, and a key being fixedly arranged between the base plate and the intermediate plate with a portion thereof extending into the passageway with which to cooperate with the outer core to maintain an angular orientation thereof with respect to the inner core. 30. The injection mold of claim 25, wherein: the first mold shoe further includes a second core retainer that is slidably connected between the first core retainer and the stripper retainer to accommodate the relative movement thereto, in use, along the mold-stroke axis; the outer core is connected to the second core retainer. 31. The injection mold of claim 30, further comprising: a stripper actuator that connects the stripper retainer and the second core retainer, the stripper actuator being operable, in use, to drive the relative movement thereof along the mold-stroke axis; anda core actuator that connects the first core retainer and the second core retainer the core actuator being operable, in use, to drive the relative movement thereof along the mold-stroke axis. 32. The injection mold of claim 25, wherein: the molded article transfer device further comprises a base plate upon which the shuttle is slidably connected for the shuttling movement thereof, in use, along a shuttling axis;the base plate defines a piston cylinder and a channel with which to connect, in use, the piston cylinder with a source or sink of a working fluid;the stripper sleeve includes a piston portion that is slidably received, in use, in the piston cylinder of the base plate;the stripper retainer is connected to the base plate, wherein a top face of the stripper retainer is arranged to retain, in use, the stripper sleeve in the piston cylinder and to otherwise provide a rear limit of travel for the stripper sleeve that corresponds with an ejection position thereof;a passageway being defined through the stripper retainer within which the outer core is slidably arranged to accommodate, in use, movement thereof along the mold-stroke axis from an outer core molding position to a stripping position.
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