公开(公告)号：US11691335B2

公开(公告)日：2023-07-04

申请号：US16684065

申请日：2019-11-14

Applicant: The ExOne Company

Inventor： Jake Flick ,  Michael John McCoy ,  Joseph J. Bolt ,  Alec Hydock ,  Travis Maxwell Inks ,  Anthony S Dugan ,  Thomas Lizzi

IPC: B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/329 ,  B29C64/255 ,  B29C64/209 ,  B29C64/35 ,  B29C64/205 ,  B07B1/40 ,  B22F12/52 ,  B22F12/67 ,  B22F10/14 ,  B22F10/28 ,  B22F12/90

CPC classification number: B29C64/153 ,  B07B1/40 ,  B22F12/52 ,  B22F12/67 ,  B29C64/205 ,  B29C64/209 ,  B29C64/255 ,  B29C64/329 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B22F10/14 ,  B22F10/28 ,  B22F12/90 ,  B22F2999/00 ,  B22F10/28 ,  B22F10/14 ,  B22F2999/00 ,  B22F12/52 ,  B22F12/67 ,  B22F3/004 ,  B22F2202/01

Abstract: The present invention relates to powder-layer three-dimensional printers (2) having a discrete supply hopper (340) and a recoater (20). The discrete supply hopper (340) is configured to transfer a build powder to the recoater (20) in a manner that enhances the uniformity of build powder layers that are dispensed from the recoater (20). In some embodiments, at least one of the discrete supply hopper and the powder hopper of the recoater is adapted to selectively contact the other, seal against the other, and/or have one partially inserted inside the other so as to diminish or prevent powder pluming during the transfer of build powder from the discrete supply hopper to the recoater.

公开(公告)号：US20160052054A1

公开(公告)日：2016-02-25

申请号：US14829757

申请日：2015-08-19

Applicant: The ExOne Company

Inventor： Michael J. Orange ,  RIck D. Lucas ,  Kimberly E. Kanzler ,  Travis Maxwell Inks

IPC: B22F3/10 ,  B22F3/00

CPC classification number: B33Y30/00 ,  B22F3/003 ,  B22F3/008 ,  B22F2999/00 ,  B29C64/165 ,  B29C64/20 ,  B22F2201/00

Abstract: Apparatuses are disclosed for three-dimensionally printing reactive materials which utilize a powder spreading step followed by a binder-jet deposition step. Some such apparatuses include a binder jet three-dimensional printing device, a curing device, and a depowdering device contained within an environmental enclosure which provides an inert atmosphere sufficient to allow a reactive material to be used as a build material without fire or explosion hazards. Some such apparatuses include one or more conveying systems for moving a removable build box among the various devices. Environmental enclosures having unique designs and features are disclosed.

Abstract translation: 公开了用于三维打印反应性材料的装置，其利用粉末扩散步骤，随后进行粘合剂 - 喷射沉积步骤。 一些这样的设备包括粘合剂喷射三维打印装置，固化装置和包含在环境外壳内的沉积装置，其提供足够的惰性气氛，以使反应性材料用作构建材料而没有火灾或爆炸危险。 一些这样的设备包括用于在各种设备之间移动可移动构建箱的一个或多个输送系统。 公开了具有独特设计和特征的环境外壳。

公开(公告)号：US11691334B2

公开(公告)日：2023-07-04

申请号：US16620696

申请日：2018-06-12

Applicant: The ExOne Company

Inventor： Lawrence Joseph Voss ,  Joseph J. Bolt ,  Anthony S. Dugan ,  Michael John McCoy ,  Daniel T. Brunermer ,  Travis Maxwell Inks ,  Paul P. Knor

IPC: B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/329 ,  B29C64/255 ,  B29C64/209 ,  B29C64/35 ,  B29C64/205 ,  B07B1/40 ,  B22F12/52 ,  B22F12/67 ,  B22F10/14 ,  B22F10/28 ,  B22F12/90

CPC classification number: B29C64/153 ,  B07B1/40 ,  B22F12/52 ,  B22F12/67 ,  B29C64/205 ,  B29C64/209 ,  B29C64/255 ,  B29C64/329 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B22F10/14 ,  B22F10/28 ,  B22F12/90 ,  B22F2999/00 ,  B22F10/28 ,  B22F10/14 ,  B22F2999/00 ,  B22F12/52 ,  B22F12/67 ,  B22F3/004 ,  B22F2202/01

Abstract: The present invention relates to apparatuses for distributing build powder in powder-layer three-dimensional printers (2) and for the collection of particulates of the build powder that have become suspended in the gaseous atmosphere in the vicinity of the build platform of the three-dimensional printer. These apparatuses include recoaters (20) that are particularly useful in providing uniform distribution of fine build powder across the width of the build platform or powder bed. The present invention also includes powder-layer three-dimensional printers (2) which comprise such apparatuses for distributing build powder and/or apparatuses for collecting such suspended particulates. The improved fine powder recoater (20) uses an ultrasonic transducer (30) to move powder through a sheet screen (28). The sheet screen (28) may be presented to the powder fed onto it in a narrow dispensing slot to limit the flow rate of powder from the dispenser and to provide control over the amount of powder dispensed. The width of the slot may extend to cover the entire build box fill zone. The ultrasonic transducer (30) is preferably adapted to periodically sweep through a range of frequencies during operation. The ultrasonic vibration system may be augmented with a low frequency vibration system. The dust collection system (160) draws air from the perimeter of the build box (172) down through the deck plate (170) of the printer (2) and out of the printer's housing (164) to an external dust collector (250).

公开(公告)号：US10850493B2

公开(公告)日：2020-12-01

申请号：US14829757

申请日：2015-08-19

Applicant: The ExOne Company

Inventor： Michael J. Orange ,  Rick D. Lucas ,  Kimberly E. Kanzler ,  Travis Maxwell Inks

IPC: B29C67/00 ,  B33Y30/00 ,  B22F3/00 ,  B29C64/165 ,  B29C64/25 ,  B29C64/371 ,  B29C64/379

Abstract: Apparatuses are disclosed for three-dimensionally printing reactive materials which utilize a powder spreading step followed by a binder-jet deposition step. Some such apparatuses include a binder jet three-dimensional printing device, a curing device, and a depowdering device contained within an environmental enclosure which provides an inert atmosphere sufficient to allow a reactive material to be used as a build material without fire or explosion hazards. Some such apparatuses include one or more conveying systems for moving a removable build box among the various devices. Environmental enclosures having unique designs and features are disclosed.

公开(公告)号：US20200180227A1

公开(公告)日：2020-06-11

申请号：US16620696

申请日：2018-06-12

Applicant: The ExOne Company

Inventor： Lawrence Joseph Voss ,  Joseph J. Bolt ,  Anthony S. Dugan ,  Michael John McCoy ,  Daniel T. Brunermer ,  Travis Maxwell Inks ,  Paul P. Knor

IPC: B29C64/329 ,  B29C64/205 ,  B07B1/40

Abstract: The present invention relates to apparatuses for distributing build powder in powder-layer three-dimensional printers (2) and for the collection of particulates of the build powder that have become suspended in the gaseous atmosphere in the vicinity of the build platform of the three-dimensional printer. These apparatuses include recoaters (20) that are particularly useful in providing uniform distribution of fine build powder across the width of the build platform or powder bed. The present invention also includes powder-layer three-dimensional printers (2) which comprise such apparatuses for distributing build powder and/or apparatuses for collecting such suspended particulates. The improved fine powder recoater (20) uses an ultrasonic transducer (30) to move powder through a sheet screen (28). The sheet screen (28) may be presented to the powder fed onto it in a narrow dispensing slot to limit the flow rate of powder from the dispenser and to provide control over the amount of powder dispensed. The width of the slot may extend to cover the entire build box fill zone. The ultrasonic transducer (30) is preferably adapted to periodically sweep through a range of frequencies during operation. The ultrasonic vibration system may be augmented with a low frequency vibration system. The dust collection system (160) draws air from the perimeter of the build box (172) down through the deck plate (170) of the printer (2) and out of the printer's housing (164) to an external dust collector (250).

公开(公告)号：US20200147884A1

公开(公告)日：2020-05-14

申请号：US16684065

申请日：2019-11-14

Applicant: The ExOne Company

Inventor： Jake Flick ,  Michael John McCoy ,  Joseph J. Bolt ,  Alec Hydock ,  Travis Maxwell Inks ,  Anthony S Dugan ,  Thomas Lizzi

IPC: B29C64/329 ,  B22F3/00 ,  B33Y40/00 ,  B29C64/255 ,  B33Y30/00 ,  B29C64/209 ,  B33Y10/00 ,  B29C64/35 ,  B29C64/153

Abstract: The present invention relates to powder-layer three-dimensional printers (2) having a discrete supply hopper (340) and a recoater (20). The discrete supply hopper (340) is configured to transfer a build powder to the recoater (20) in a manner that enhances the uniformity of build powder layers that are dispensed from the recoater (20). In some embodiments, at least one of the discrete supply hopper and the powder hopper of the recoater is adapted to selectively contact the other, seal against the other, and/or have one partially inserted inside the other so as to diminish or prevent powder pluming during the transfer of build powder from the discrete supply hopper to the recoater.