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公开(公告)号：US11964415B2
公开(公告)日：2024-04-23
申请号：US17269661
申请日：2019-08-29
发明人： Joaquim Martins Nogueira , Adam Christopher Ulemek , Ralf Walter Fisch , Sven Kmoch , Alex Teng
IPC分类号： B29C45/04 , B29C45/17 , B29C45/18 , B29C45/26 , B29C45/33 , B29C45/36 , B29C45/66 , B29K105/00
CPC分类号： B29C45/332 , B29C45/0408 , B29C45/0433 , B29C45/1744 , B29C45/18 , B29C45/261 , B29C45/36 , B29C45/661 , B29C2045/363 , B29C2045/662 , B29K2105/258
摘要： An injection molding apparatus comprises a support base and a mold carrier removably mounted to the support base. The mold carrier includes a mounting plate with attachment features for engaging the support base. A mold with two mold plates is slidably mounted to the mounting 5 plate. A clamp is operable to move the plates between open and closed positions. In the closed position, the plates abut one another. In the open position, the plates are spaced apart for removing molded articles.
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公开(公告)号：US20240025095A1
公开(公告)日：2024-01-25
申请号：US18263475
申请日：2021-12-22
发明人： Stephan SCHERER , Tobias NAUMANN
CPC分类号： B29C45/0081 , B29C45/0017 , B65D55/16 , B65D41/3447 , B29C2045/0093 , B29L2031/565
摘要： A molding apparatus for molding a closure device for a container. The closure device may be tethered to the container, and may open and close via a hinged articulation. The closure device includes a cylindrical body comprising hinge-connecting areas with pockets formed in the interior wall and defining an inner surface of the hinge-connecting areas, and hinges extending downwardly from the hinge-connecting areas and positioned at or below a bottom edge of the cylindrical body. The molding apparatus comprises a cavity insert component and a core component that cooperate to form mold surfaces to mold the closure device such that hinges are located below the cap area of the closure device, and hinge-connecting areas formed by projections in the core mold component and recesses in the cavity mold component are located within the cap area are flanked by membranous areas.
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3.发明公开公开(公告)号：US20230390983A1
公开(公告)日：2023-12-07
申请号：US18249279
申请日：2021-09-17
发明人： Damish JAIDKA
CPC分类号： B29C45/1643 , B29C45/77 , B29C45/20 , B29B11/08 , B32B1/08 , B32B27/08 , B32B27/36 , B29L2023/00
摘要： In one aspect, a method of coinjection molding a multilayer article using a coinjection nozzle having inner outlet, an outer outlet, and an intermediate outlet between the inner and outer outlets is provided. A stream of surface layer material is injected into a mold cavity from the intermediate outlet. With the injection ongoing, two streams of internal layer material are injected from the inner and outer outlets of the coinjection nozzle respectively. The two streams sandwich the stream of surface layer material and flow behind a melt front of the surface layer material. The sandwiched stream of surface layer material continues to supply the melt front with surface layer material at least until the melt front nears a distal end of the mold cavity. The resultant article is substantially or entirely encapsulated by a skin of the surface layer material and contains a high proportion of internal layer material.
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公开(公告)号：US11826936B2
公开(公告)日：2023-11-28
申请号：US17812285
申请日：2022-07-13
发明人： Sven Kmoch , Ralf Walter Fisch , Derek Robertson McCready , Renato Papa , Maxfield Paul Bradshaw
CPC分类号： B29C45/1753 , B29C33/72 , B29C45/34 , B29C45/80 , B29C45/33 , B29C2045/2683
摘要： In an aspect, a mold stack may comprise two adjacent components, one at least partially defining a vent adjustable between a molding configuration and a cleaning configuration. A junction of the components may be adjustable between a molding configuration, wherein mating faces contact one another to define a parting line, and a cleaning configuration, wherein mating faces are separated to create a molding cavity extension therebetween and an auxiliary melt barrier prevents uncontrolled flashing from the extension.
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公开(公告)号：US20230302704A1
公开(公告)日：2023-09-28
申请号：US18144448
申请日：2023-05-08
发明人： Weichun Yu , Gregory Allan Schultz
CPC分类号： B29C45/82 , B29C45/7653 , B29C45/77 , B29C2945/76006 , B29C2945/76307 , B29C2945/76498 , B29C2945/76785
摘要： In one aspect, there is provided an injection molding system configured to operate in a plurality of cycles. The system comprises, amongst other things, a controller that is configured for performing a comparison of a variable pressure setpoint with a target pressure value. The controller is configured to, when the target pressure value is less than the variable pressure setpoint by at least a predetermined lower bound, (i) decrease the variable pressure setpoint to a reduced variable pressure setpoint and (ii) not further decrease the variable pressure setpoint from the reduced variable pressure setpoint until the pump assembly operates for a plurality of stabilizing cycles at the reduced variable pressure setpoint.
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6.发明公开公开(公告)号：US20230234270A1
公开(公告)日：2023-07-27
申请号：US18004914
申请日：2021-07-13
CPC分类号： B29C45/762 , B29C45/1607 , B29C45/1642 , B29C45/1646
摘要： In one aspect there is disclosed a method of improving shot repeatability in a multilayer reciprocating screw injection molding apparatus by preventing pressure communication or “cross-talk” between melt channels. In the first aspect an outlet nozzle valve is closed prior to closing a check valve within an injection unit of the multilayer reciprocating screw injection molding apparatus. In another aspect there is disclosed a method of improving shot repeatability in a reciprocating screw injection molding apparatus by recording a first position of a screw within the barrel of an injection unit of a reciprocating screw injection molding apparatus, the first position corresponding to a volume of melt within the barrel of the material injection unit. A second position of the screw is then calculated based on the first position, the second position corresponding to a transition position of the screw within the barrel of the injection unit of the reciprocating screw injection molding apparatus.
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公开(公告)号：US20220402186A1
公开(公告)日：2022-12-22
申请号：US17779407
申请日：2020-11-25
摘要： In one aspect, a method of molding a multilayer article comprises causing a surface layer material injection unit to commence injecting a surface layer material into a mold cavity via a surface layer material channel. Then, an internal layer material injection unit commences injecting an internal layer material into the mold cavity an internal layer material channel. Then, during application of a hold pressure upon the surface layer material in the surface layer material channel and with the surface and internal layer material injection units in fluid communication with one another, a pullback stroke is effected at the internal layer material injection unit. After a delay interval, at least one physical parameter indicative of a post-pullback pressure of the internal layer material is detected, and an indicator of pullback effectiveness is generated based on the post-pullback pressure indicated by the at least one physical parameter relative to a threshold pressure.
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公开(公告)号：US20220347902A1
公开(公告)日：2022-11-03
申请号：US17812285
申请日：2022-07-13
发明人： Sven KMOCH , Ralf Walter FISCH , Derek Robertson MCCREADY , Renato PAPA , Maxfield Paul BRADSHAW
摘要： In an aspect, a mold stack may comprise two adjacent components, one at least partially defining a vent adjustable between a molding configuration and a cleaning configuration. A junction of the components may be adjustable between a molding configuration, wherein mating faces contact one another to define a parting line, and a cleaning configuration, wherein mating faces are separated to create a molding cavity extension therebetween and an auxiliary melt barrier prevents uncontrolled flashing from the extension.
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公开(公告)号：US20220340339A1
公开(公告)日：2022-10-27
申请号：US17608726
申请日：2020-04-23
摘要： A closure device for a container having a neck including an annular flange, the closure device comprising: a cap body; a tamper evident (TE) band positioned below the annular flange when assembled in the container; a first hinge and a second hinge defined on the cap body; a leash connected to the TE band, the first hinge and the second hinge; the leash allowing for the cap body to be separated from the TE band during opening, but to remain connected thereto via the leash; a tongue protruding from the cap body between the first and second hinges; when the cap body is actuated from a closed configuration relative to the neck to a fully open position: the leash is configured to retain the cap body to the TE band; an interaction of the tongue and the neck is configured to retain the cap body in the fully open position.
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公开(公告)号：US20220332030A1
公开(公告)日：2022-10-20
申请号：US17760931
申请日：2020-09-21
发明人： Weichun YU , Gregory Allan SCHULTZ
摘要： In one aspect, there is provided an injection molding system configured to operate in a plurality of cycles. The system comprises, amongst other things, a controller that is configured for performing a comparison of a variable pressure setpoint with a target pressure value. The controller is configured to, when the target pressure value is less than the variable pressure setpoint by at least a predetermined lower bound, (i) decrease the variable pressure setpoint to a reduced variable pressure setpoint and (ii) not further decrease the variable pressure setpoint from the reduced variable pressure setpoint until the pump assembly operates for a plurality of stabilizing cycles at the reduced variable pressure setpoint.
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