- 专利标题： Filament heaters configured to facilitate thermal treatment of filaments for extruder heads in three-dimensional object printers
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申请号： US15334851申请日： 2016-10-26
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公开(公告)号： US10814544B2公开(公告)日： 2020-10-27
- 发明人: David A. Mantell , Peter J. Nystrom , Christopher G. Lynn , Jun Ma , Mark A. Cellura , Gary D. Redding
- 申请人： Xerox Corporation
- 申请人地址： US CT Norwalk
- 专利权人： Xerox Corporation
- 当前专利权人： Xerox Corporation
- 当前专利权人地址： US CT Norwalk
- 代理机构： Maginot Moore & Beck LLP
- 主分类号： B29C48/80
- IPC分类号： B29C48/80 ; B29C48/00 ; B29C48/29 ; B29C48/36 ; B29C64/106 ; B29C48/92 ; B29C64/295 ; B29C64/209 ; B33Y70/00 ; B33Y30/00 ; B29K101/12
摘要：
An apparatus includes a heater for converting a filament of extrusion material into thermoplastic material. The heater has a channel configured to change the cross-sectional shape of the filament to a cross-sectional shape that has a greater surface area than the surface area of the filament before the heater receives the filament. The channel of the heater can also be configured to drive the center portion of the filament toward the heated walls of the channel and to mix thermoplastic material in the channel while exposing the center portion of the filament to the heated wall of the channel.
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