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公开(公告)号：US20230034476A1
公开(公告)日：2023-02-02
申请号：US17964151
申请日：2022-10-12
发明人： William Henderson , Ling Feng , Andrew Dovey
摘要： A method of performing an injection cycle having a duration comprising: beginning the injection cycle with the valve pins associated with two or more nozzles in a gate closed position, selecting a first one of the two or more nozzles and controllably driving its associated valve pin from the gate closed position to a selected first axial upstream position, upon downstream flow of the injection fluid through a cavity the preselected distance, controllably driving the valve pin associated with the other of the two or more nozzles to a selected second axial position upstream, holding or controllably driving the valve pin associated with the first one of the two or more nozzles in or to one or more reduced flow axial upstream positions that are partially closed.
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公开(公告)号：US11865755B2
公开(公告)日：2024-01-09
申请号：US17964151
申请日：2022-10-12
发明人： William Henderson , Ling Feng , Andrew Dovey
CPC分类号： B29C45/7613 , B29C45/22 , B29C45/231 , B29C45/77 , B29C2045/279 , B29C2945/76545 , B29C2945/76688 , B29C2945/76939
摘要： A method of performing an injection cycle having a duration comprising:
beginning the injection cycle with the valve pins associated with two or more nozzles in a gate closed position,
selecting a first one of the two or more nozzles and controllably driving its associated valve pin from the gate closed position to a selected first axial upstream position,
upon downstream flow of the injection fluid through a cavity the preselected distance, controllably driving the valve pin associated with the other of the two or more nozzles to a selected second axial position upstream,
holding or controllably driving the valve pin associated with the first one of the two or more nozzles in or to one or more reduced flow axial upstream positions that are partially closed.-
公开(公告)号：US20180133944A1
公开(公告)日：2018-05-17
申请号：US15833003
申请日：2017-12-06
发明人： William Henderson , Ling Feng , Andrew Dovey
CPC分类号： B29C45/7613 , B29C45/22 , B29C45/231 , B29C45/77 , B29C2045/279 , B29C2945/76545 , B29C2945/76688 , B29C2945/76939
摘要： A method of performing an injection cycle having a duration comprising: beginning the injection cycle with the valve pins associated with two or more nozzles in a gate closed position, selecting a first one of the two or more nozzles and controllably driving its associated valve pin from the gate closed position to a selected first axial upstream position, upon downstream flow of the injection fluid through a cavity the preselected distance, controllably driving the valve pin associated with the other of the two or more nozzles to a selected second axial position upstream, holding or controllably driving the valve pin associated with the first one of the two or more nozzles in or to one or more reduced flow axial upstream positions that are partially closed.
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公开(公告)号：US11491693B2
公开(公告)日：2022-11-08
申请号：US15833003
申请日：2017-12-06
发明人： William Henderson , Ling Feng , Andrew Dovey
摘要： A method of performing an injection cycle having a duration comprising: beginning the injection cycle with the valve pins associated with two or more nozzles in a gate closed position, selecting a first one of the two or more nozzles and controllably driving its associated valve pin from the gate closed position to a selected first axial upstream position, upon downstream flow of the injection fluid through a cavity the preselected distance, controllably driving the valve pin associated with the other of the two or more nozzles to a selected second axial position upstream, holding or controllably driving the valve pin associated with the first one of the two or more nozzles in or to one or more reduced flow axial upstream positions that are partially closed.
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公开(公告)号：US10899055B2
公开(公告)日：2021-01-26
申请号：US15181933
申请日：2016-06-14
发明人： Ling Feng , Li Liqiao , William Henderson , Vito Galati
摘要： An injection molding apparatus comprising: a manifold, a nozzle, A distal tip of the nozzle being comprised of a highly heat conductive insert and an insulation cap that is substantially less heat conductive than the insert, the downstream end portion of the insulation cap being disposed between the gate and the downstream end portion of the highly heat conductive insert forming a fluid seal around the gate, a valve pin, wherein when the valve pin is in a gate closed position, an axially interior surface of a fluid exit aperture of the insulation cap surrounds a gap enabling circumferential surface of the valve pin forming a spatial gap immediately upstream of the gate between the interior surface of the fluid exit aperture of the insulation cap and the gap enabling circumferential surface of the valve pin.
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