公开(公告)号：US20220305710A1

公开(公告)日：2022-09-29

申请号：US17838915

申请日：2022-06-13

Applicant: HUSKY INJECTION MOLDING SYSTEMS LTD.

Inventor： ABDESLAM BOUTI ,  Hakimuddin Boxwala ,  Nathan Gabriel Southwick ,  Maciej Brelski ,  Dietmar Tiemo Brand ,  Adam Christopher Ulemek ,  Dirk Holger Schlums

IPC: B29C45/30 ,  B29B11/08 ,  B29C45/16 ,  B29C45/27

Abstract: A co-injection hot runner nozzle comprises an inner melt flow channel and an annular outer melt flow channel that surrounds the inner melt flow channel. The inner and outer melt flow channels have a first common source. The nozzle further comprises an annular intermediate melt flow channel disposed between the inner and outer melt flow channels. The annular intermediate melt flow channel is at least partly defined by a plurality of spiral grooves, each spiral groove having a respective inlet and defining a helical flow path. Lands between adjacent spiral grooves increase in clearance in a downstream direction. An annular axial flow path is defined over the lands. A plurality of feeder channels having a second common source is configured to supply melt to the plurality of inlets of the spiral grooves. The relationship of feeder channels to spiral grooves may be one-to-one. The inlets may be longitudinal channels.

公开(公告)号：US11358313B2

公开(公告)日：2022-06-14

申请号：US16481683

申请日：2018-01-12

Applicant: HUSKY INJECTION MOLDING SYSTEMS LTD.

Inventor： Abdeslam Bouti ,  Hakimuddin Boxwala ,  Nathan Gabriel Southwick ,  Maciej Brelski ,  Dietmar Tierno Brand ,  Adam Christopher Ulemek ,  Dirk Holger Schlums

IPC: B29C45/30 ,  B29B11/08 ,  B29C45/16 ,  B29C45/27

Abstract: A co-injection hot runner nozzle comprises an inner melt flow channel and an annular outer melt flow channel that surrounds the inner melt flow channel. The inner and outer melt flow channels have a first common source. The nozzle further comprises an annular intermediate melt flow channel disposed between the inner and outer melt flow channels. The annular intermediate melt flow channel is at least partly defined by a plurality of spiral grooves, each spiral groove having a respective inlet and defining a helical flow path. Lands between adjacent spiral grooves increase in clearance in a downstream direction. An annular axial flow path is defined over the lands. A plurality of feeder channels having a second common source is configured to supply melt to the plurality of inlets of the spiral grooves. The relationship of feeder channels to spiral grooves may be one-to-one. The inlets may be longitudinal channels.

公开(公告)号：US12194666B2

公开(公告)日：2025-01-14

申请号：US17838915

申请日：2022-06-13

Applicant: HUSKY INJECTION MOLDING SYSTEMS LTD.

Inventor： Abdeslam Bouti ,  Hakimuddin Boxwala ,  Nathan Gabriel Southwick ,  Maciej Brelski ,  Dietmar Tiemo Brand ,  Adam Christopher Ulemek ,  Dirk Holger Schlums

IPC: B29C45/30 ,  B29B11/08 ,  B29C45/16 ,  B29C45/27

Abstract: A co-injection hot runner nozzle comprises an inner melt flow channel and an annular outer melt flow channel that surrounds the inner melt flow channel. The inner and outer melt flow channels have a first common source. The nozzle further comprises an annular intermediate melt flow channel disposed between the inner and outer melt flow channels. The annular intermediate melt flow channel is at least partly defined by a plurality of spiral grooves, each spiral groove having a respective inlet and defining a helical flow path. Lands between adjacent spiral grooves increase in clearance in a downstream direction. An annular axial flow path is defined over the lands. A plurality of feeder channels having a second common source is configured to supply melt to the plurality of inlets of the spiral grooves. The relationship of feeder channels to spiral grooves may be one-to-one. The inlets may be longitudinal channels.