Constructing 3-dimensional parts using electrophotography

Patent metadata

Field	Value
Publication number	US-11738503-B2
Application number	US-202117532817-A
Country	US
Kind code	B2
Filing date	Nov 22, 2021
Priority date	Dec 28, 2018
Publication date	Aug 29, 2023
Grant date	Aug 29, 2023

Abstract

Systems and methods for constructing 3-dimensional (3D) parts are disclosed. A printing system may include a deposition system configured to print a plurality of 2-dimensional (2D) layers onto a plurality of carrier sheets. The printing system also includes a transferring system configured to transfer a 2D layer from a carrier sheet of the plurality of carrier sheets, onto the 3D part. The 3D part may be located on a base substrate. The printing system further includes a feed system configured to provide the plurality of carrier sheets from the deposition system to the transfer system in a successive fashion while maintaining the directionality of printing in the deposition and transferring systems.

First claim

What is claimed is:

1. A system for producing a 3-dimensional (3D) part, the system comprising:
a deposition system configured to print a plurality of 2-dimensional (2D) layers onto a plurality of carrier sheets, wherein the plurality of carrier sheets are spaced apart from one another and move through the deposition in a direction on a conveyor belt;
a transfer system configured to transfer at least one 2D layer from the plurality of carrier sheets, onto the 3D part, wherein the 3D part is located on a base substrate; and
a feed system configured to:
provide the plurality of carrier sheets from the deposition system to the transfer system; and
after the transfer of the at least one 2D layer from the plurality of carrier sheets, collect the carrier sheets in a tray and feed the carrier sheets from the tray to the conveyor belt to return to the deposition system.

2. The system of claim 1 , wherein a first 2D layer of the plurality of 2D layers defines a first pattern corresponding to a cross-section of the 3D part.

3. The system of clam 15 , wherein the first 2D layer further comprises a second pattern that does not correspond to the cross-section of the 3D printed part.

4. The system of claim 3 , wherein the first pattern comprises a first set of materials and the second pattern comprises a second material.

5. The system of claim 4 , wherein the first set of materials comprises a set of active materials and the second material comprises a support material.

6. The system of claim 1 , wherein the deposition system comprises an electromagnetic radiation emission device.

7. The system of claim 6 , wherein the electromagnetic emission device is configured to apply toner particles to the plurality of carrier sheets.

8. The system of claim 7 , wherein the toner particles comprise at least one of: a polymer, a metal, or a ceramic.

9. The system of claim 1 , further comprising a jetting print head configured to apply material to the plurality of carrier sheets.

10. The system of claim 9 , wherein the material comprises at least one of: a polymer, a dielectric, a metal, or a ceramic.

11. The system of claim 1 , wherein:
the deposition system is further configured to successively print the plurality of 2D layers onto the plurality of carrier sheets without changing the direction of the plurality of carrier sheets during a deposition process; and
the transfer system is configured to successively print the plurality of 2D layers onto the 3D part without changing the direction of the plurality of carrier sheets during a transfer process; and
the feed system is configured to maintain the directionality of motion of the carrier sheets in the deposition and transfer systems and produce the 3D part without reversing the print and transfer processing directions for the successive 2D layers.

12. The system of claim 1 , wherein the deposition system is further configured to align the 2D layers using at least one of:
a set of alignment features on the plurality of carrier sheets; a set of edges of the plurality of carrier sheets; and
a set of corners of the plurality of carrier sheets.

13. The system of claim 1 , wherein the plurality of 2D layers are successively printed onto the plurality of carrier sheets while the transfer system transfers at least one 2D layer onto the 3D part.

14. The system of claim 1 , wherein the transfer system transfers at least one 2D layer onto the 3D part after the plurality of 2D layers are successively printed onto the plurality of carrier sheets.

15. The system of claim 1 , wherein a first 2D layer of the plurality of 2D layers is transferred onto the 3D part using at least one of: heat, pressure, electromagnetic radiation, or a chemical agent.

16. The system of claim 1 , wherein all portions of the conveyor belt are driven at a uniform speed in the direction and a directionality of motion of the conveyer belt is maintained during the production of the 3D part.

17. The system of claim 1 , wherein the feed system is configured to clean the plurality of the carrier sheets before the plurality of carrier sheets are provided to the depositing system.

Assignees

• Palo Alto Res Ct Inc
• Xerox Corp

Inventors

• Plochowietz Anne
• Pattekar Ashish V
• Lu Jengping
• Hu Nan-Xing

Classifications

• Y02P10/25

  Process efficiency · CPC title

• B29C64/147 Primary

  using sheet material, e.g. laminated object manufacturing [LOM] or laminating sheet material precut to local cross sections of the 3D object · CPC title

• B29C64/205

  Means for applying layers · CPC title

• B29C64/321

  Feeding · CPC title

• G03G15/224

  Machines for forming tactile or three dimensional images by electrographic means, e.g. braille, 3d printing · CPC title