公开(公告)号：US11230063B2

公开(公告)日：2022-01-25

申请号：US16878785

申请日：2020-05-20

Applicant: Xerox Corporation

Inventor： David A. Mantell

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/118 ,  B29C64/209 ,  B29C48/92 ,  B29C64/227 ,  B29C48/05 ,  B29C64/112 ,  B29C48/345 ,  B29C48/25 ,  B29K55/02 ,  B29K67/00 ,  B29K77/00

Abstract: An additive manufacturing system operates an extruder to extrude a swath of thermoplastic material through at least two nozzles of the extruder to form a swath of thermoplastic material along a path of relative movement between the extruder and a platform. The speed of the extruder along the path corresponds to a predetermined speed selected with reference to an orientation of the extruder and the angle for the path of relative movement between the extruder and the platform. A controller in the system operates at least one actuator operatively connected to at least one of the extruder and the platform to move the at least one of the extruder and the platform relative to the other of the extruder and the platform along the path of relative movement at the predetermined speed to make the swath of the thermoplastic material contiguous in a cross-process direction.

公开(公告)号：US11220056B2

公开(公告)日：2022-01-11

申请号：US16686566

申请日：2019-11-18

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Peter J. Nystrom ,  Christopher G. Lynn

IPC: B29C64/321 ,  B29C48/21 ,  B29C48/92 ,  B29C64/209 ,  B29C48/02 ,  B29C64/343 ,  B29C64/118 ,  B33Y10/00 ,  B33Y30/00 ,  B29L9/00

Abstract: A method of operating an extruder assembly in a three-dimensional object printer translates and rotates an extruder body having an extrusion slot to produce three-dimensional objects more quickly and with greater precision. The method also includes rotating and moving one or more shutter bodies with respect to the extrusion slot to form a continuous filament of material of various sizes and shapes.

公开(公告)号：US20210276254A1

公开(公告)日：2021-09-09

申请号：US16812779

申请日：2020-03-09

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Christopher G. Lynn ,  Jason O'Neil ,  Priyaanka D. Guggilapu ,  Peter J. Nystrom

IPC: B29C64/209 ,  B29C64/118 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02

Abstract: An additive manufacturing system has a controller configured to operate an actuator to move a multi-nozzle extruder in an XY plane and rotate the multi-nozzle extruder about an axis perpendicular to the XY plane while operating the multi-nozzle extruder to form swaths in the XY plane. The controller operates the actuator and the multi-nozzle extruder to keep the nozzles of the extruder within perimeters formed for an object and to vary the speed and rotation of the extruder while extruding material to form precise structures.

公开(公告)号：US11034074B2

公开(公告)日：2021-06-15

申请号：US16405206

申请日：2019-05-07

Applicant: Xerox Corporation

Inventor： Barry P. Mandel ,  David A. Mantell ,  Peter J. Nystrom

IPC: B29C48/92 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C48/02 ,  B29C48/25 ,  B29C64/118

Abstract: A controller operates a first actuator to produce relative movement between a multi-nozzle extrusion printhead and a support member along a predetermined path for one layer of a three-dimensional printed object. The multi-nozzle extrusion printhead includes a housing with a chamber, a valve assembly having a plurality of passageways, and a planar member having a plurality of nozzles. The passageways of the valve assembly and the nozzles of the planar member are connected to one another in a one-to-one correspondence and valve members of the valve assembly are operated to open and close melted extruded material flow to the nozzles selectively and independently.

公开(公告)号：US20200316851A1

公开(公告)日：2020-10-08

申请号：US16908908

申请日：2020-06-23

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Andrew W. Hays ,  Linn C. Hoover ,  Ron E. Dufort ,  Erwin Ruiz ,  Patrick J. Howe

IPC: B29C64/112 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  B33Y40/00 ,  B29C64/171 ,  B29C71/00 ,  B29C64/176 ,  B29C64/182 ,  B29C64/40 ,  B29C64/35 ,  B05B11/00

Abstract: A system for producing three-dimensional objects forms fluid paths within the support structure to facilitate the removal of the support structure following manufacture of the object. The system includes a first ejector configured to eject a first material towards a platen to form an object, a second ejector configured to eject a second material towards the platen to form support for portions of the object, at least one portion of the support having a body with at least one fluid path that connects at least one opening in the body to at least one other opening in the body, and a fluid source that connects to the at least one fluid path of the support to enable fluid to flow through the at least one fluid path to remove at least an inner portion of the support from the object.

公开(公告)号：US10791245B2

公开(公告)日：2020-09-29

申请号：US16371516

申请日：2019-04-01

Applicant: Xerox Corporation

Inventor： Howard A. Mizes ,  David A. Mantell

IPC: B29C64/393 ,  H04N1/40 ,  B29C64/112 ,  B41J25/308 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A three-dimensional object printer is configured to generate a printed predetermined test pattern on a substrate in the printer with a plurality of ejectors in a printhead. An image sensor generates image data of the printed test pattern and a controller identifies a z-axis distance between the printhead and the substrate using a dispersion identified between cross-process direction distances separating printed marks in the test pattern.

公开(公告)号：US20200061912A1

公开(公告)日：2020-02-27

申请号：US16667155

申请日：2019-10-29

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Christopher G. Lynn ,  Mark A. Cellura ,  Peter J. Nystrom

IPC: B29C64/232 ,  B33Y50/02 ,  B33Y30/00 ,  B33Y10/00 ,  B29C64/393 ,  B29C64/118 ,  B29C64/227

Abstract: A method for identifying an angular deviation in the orientation of a multi-nozzle extruder includes moving the multi-nozzle extruder in a first process direction to form a first extrusion material swath and moving the multi-nozzle extruder in a second process direction opposing the first process direction to form a second extrusion material swath. The method further includes identifying widths and heights of the swaths from scanned image data and identifying a component of angular deviation for the multi-nozzle extruder with reference to at least one of a difference between the first swath width and the second swath width and another difference between the first swath height and the second swath height.

公开(公告)号：US20200023579A1

公开(公告)日：2020-01-23

申请号：US16042125

申请日：2018-07-23

Applicant: Xerox Corporation

Inventor： Christopher G. Lynn ,  Peter J. Nystrom ,  David A. Mantell

IPC: B29C64/209 ,  B29C47/08 ,  B33Y30/00 ,  B29C47/06

Abstract: An extruder has a valve assembly configured to move pins to open and close the nozzles in a multi-nozzle extruder head independently. The pins of the valve assembly that are driven by actuators into and out of engagement with nozzles in the extruder head are positioned within sleeves that extend between the valve assembly and the extruder head. A gap is provided between the extruder head and the end of the sleeves proximate the extruder head to enable thermoplastic material leaking from the extruder that contacts the pins to remain in a melted or plastic state so the thermoplastic material does not interfere with the movement of the pins.

公开(公告)号：US20190255755A1

公开(公告)日：2019-08-22

申请号：US16405206

申请日：2019-05-07

Applicant: Xerox Corporation

Inventor： Barry P. Mandel ,  David A. Mantell ,  Peter J. Nystrom

IPC: B29C48/92 ,  B29C48/02 ,  B33Y30/00 ,  B33Y50/02 ,  B29C48/25 ,  B33Y10/00 ,  B29C64/386 ,  B29C64/106

Abstract: A controller operates a first actuator to produce relative movement between a multi-nozzle extrusion printhead and a support member along a predetermined path for one layer of a three-dimensional printed object. The multi-nozzle extrusion printhead includes a housing with a chamber, a valve assembly having a plurality of passageways, and a planar member having a plurality of nozzles. The passageways of the valve assembly and the nozzles of the planar member are connected to one another in a one-to-one correspondence and valve members of the valve assembly are operated to open and close melted extruded material flow to the nozzles selectively and independently.

公开(公告)号：US10291816B2

公开(公告)日：2019-05-14

申请号：US14603710

申请日：2015-01-23

Applicant: Xerox Corporation

Inventor： Howard A. Mizes ,  David A. Mantell

IPC: B29C67/00 ,  H04N1/40 ,  B29C64/393 ,  B41J25/308 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A method of operating a three-dimensional object printer includes generation of a printed predetermined test pattern on a substrate in the printer with a plurality of ejectors in a printhead. An image sensor generates image data of the printed test pattern and a controller identifies a z-axis distance between the printhead and the substrate that receives the test pattern with reference to an identified dispersion between cross-process direction distances separating printed marks in the test pattern.