公开(公告)号：US10766196B2

公开(公告)日：2020-09-08

申请号：US16223158

申请日：2018-12-18

申请人： Ultimaker B.V.

发明人： Kornelis Hermanus Welling

IPC分类号： B29C64/321 ,  B33Y30/00 ,  B29C64/118 ,  B65H51/10

摘要： A filament feeder for use in an additive manufacturing system, comprising a main feeder body having mounted thereon a first biasing roller and a driven first gripper roller arranged at an adjustable first roller distance from each other allowing a filament material to be received between the first biasing roller and the first gripper roller. The filament feeder further comprises a second biasing roller and a driven second gripper roller arranged at an adjustable second roller distance from each other for receiving the filament material. A biasing assembly is provided in resilient engagement with the first and second biasing rollers and configured to bias the first and second biasing rollers toward the first and second gripper rollers, respectively, during an additive manufacturing process.

公开(公告)号：US20220258428A1

公开(公告)日：2022-08-18

申请号：US17629795

申请日：2020-07-14

申请人： Ultimaker B.V.

发明人： Peter Brier ,  Kornelis Hermanus Welling

IPC分类号： B29C64/393 ,  G01B13/22 ,  B33Y50/02 ,  B33Y30/00 ,  B29C64/245

摘要： The invention relates to a fused filament fabrication device (1) comprising a print head (2) comprising a melt chamber (22) and a nozzle (4). The print head (2) is movably arranged relative to a build surface (10) in at least two perpendicular directions. A feeder (3) is arranged to feed filament material to the print head (2). A sensor is arranged to directly or indirectly measure a pressure in the melt chamber (22), the sensor producing pressure data. A flow sensor is arranged to measure a flow of filament into the print head (2) to obtain flow data. The device (1) also comprises a controller (7) arranged for a) controlling movement of the nozzle (4) over the build surface (10), b) controlling deposition of molten filament material on the build surface (10) during the movement of the nozzle (4), c) receiving the pressure data and the flow data, and d) determining a local height of the build surface (10) fora plurality of locations on the build surface (10), using the pressure data and the flow data.

公开(公告)号：US11801637B2

公开(公告)日：2023-10-31

申请号：US17798606

申请日：2021-01-19

申请人： Ultimaker B.V.

发明人： Kornelis Hermanus Welling

IPC分类号： B29C64/321 ,  B29C64/118 ,  B29C64/209 ,  B33Y30/00 ,  B33Y40/00

CPC分类号： B29C64/321 ,  B29C64/118 ,  B29C64/209 ,  B33Y30/00 ,  B33Y40/00

摘要： A filament feeder (1) for use in a fused filament fabrication printer comprises a feeder body (2) which comprises a channel (3) for guiding a filament (F) there through. A first and a second driven grip roller (4, 5) are arranged on opposing sides of the channel (3) for clamped engagement with the filament (F), wherein the first grip roller (4) is rotationally arranged about a first roller axis (4a) and the second grip roller (5) is rotationally arranged about a second roller axis (5a). The feeder comprises a first drive gear (6) for driving the first grip roller (4), the first drive gear (6) being rotatably arranged about the first roller axis (4a), a second drive gear (7) for driving the second grip roller (5), the second drive gear being rotatably arranged about the second roller axis (5a), and a suspension system (S) for suspension of the first and second grip roller (4,5) and of the first and second drive gear (6,7). The suspension system (S) is arranged to allow lateral movement of the first and second grip rollers (4, 5) with respect to the channel (3) for providing a variable distance (D+ΔD) between the first and second roller axes (4a, 5a).

公开(公告)号：US20230101979A1

公开(公告)日：2023-03-30

申请号：US17798606

申请日：2021-01-19

申请人： Ultimaker B.V.

发明人： Kornelis Hermanus Welling

IPC分类号： B29C64/321 ,  B29C64/118 ,  B29C64/209 ,  B33Y30/00 ,  B33Y40/00

摘要： A filament feeder (1) for use in a fused filament fabrication printer comprises a feeder body (2) which comprises a channel (3) for guiding a filament (F) there through. A first and a second driven grip roller (4, 5) are arranged on opposing sides of the channel (3) for clamped engagement with the filament (F), wherein the first grip roller (4) is rotationally arranged about a first roller axis (4a) and the second grip roller (5) is rotationally arranged about a second roller axis (5a). The feeder comprises a first drive gear (6) for driving the first grip roller (4), the first drive gear (6) being rotatably arranged about the first roller axis (4a), a second drive gear (7) for driving the second grip roller (5), the second drive gear being rotatably arranged about the second roller axis (5a), and a suspension system (S) for suspension of the first and second grip roller (4,5) and of the first and second drive gear (6,7). The suspension system (S) is arranged to allow lateral movement of the first and second grip rollers (4, 5) with respect to the channel (3) for providing a variable distance (D+AD) between the first and second roller axes (4a, 5a).

公开(公告)号：US20190193331A1

公开(公告)日：2019-06-27

申请号：US16223158

申请日：2018-12-18

申请人： Ultimaker B.V.

发明人： Kornelis Hermanus Welling

IPC分类号： B29C64/321 ,  B65H51/10 ,  B29C64/118 ,  B33Y30/00

摘要： A filament feeder for use in an additive manufacturing system, comprising a main feeder body having mounted thereon a first biasing roller and a driven first gripper roller arranged at an adjustable first roller distance from each other allowing a filament material to be received between the first biasing roller and the first gripper roller. The filament feeder further comprises a second biasing roller and a driven second gripper roller arranged at an adjustable second roller distance from each other for receiving the filament material. A biasing assembly is provided in resilient engagement with the first and second biasing rollers and configured to bias the first and second biasing rollers toward the first and second gripper rollers, respectively, during an additive manufacturing process.