Pattern-Forming Three-Dimensional Printing System and Method Thereof

Patent metadata

Field	Value
Publication number	US-2016144561-A1
Application number	US-201314899393-A
Country	US
Kind code	A1
Filing date	Jun 20, 2013
Priority date	Jun 20, 2013
Publication date	May 26, 2016
Grant date	—

Abstract

Examples of the present disclosure describe a system and method for pattern-forming three-dimensional printing. According to one implementation, a layer of material curable by energy in a predetermined wavelength range is provided, and a pattern of ink opaque to energy in the predetermined wavelength range is printed onto a moveable element. Moreover, energy in the predetermined wavelength is applied through the moveable element and onto the deposited material so as to cure the material in those regions on which no ink is printed.

First claim

What is claimed is:

1 . A method of pattern-forming three-dimensional printing comprising:
providing a layer of curable material, wherein the curable material is curable by energy in a predetermined wavelength range; printing a pattern of ink onto a moveable element, wherein the ink is opaque to energy in the predetermined wavelength range; and applying energy in the predetermined wavelength through the moveable element and onto the deposited material so as to cure the material in those regions on which no ink is printed.

2 . The method of claim 1 , further comprising:
transitioning regions of the moveable element from a printing source to an illumination source and back to the printing source.

3 . The method of claim 2 , further comprising:
receiving, at a processing device, a three-dimensional model of an object to be printed; dividing, via the processing device, the three-dimensional model of the object into a plurality of object layers to be printed; and providing a plurality layers of curable material for each of the plurality of object layers to be printed, wherein a layer of curable material is formed on top of a previously-formed layer of curable material until each of the object layers are printed.

4 . The method of claim 2 , further comprising
removing, via an ink removal unit, the pattern of ink from the moveable element after the layer of curable material has been cured.

5 . The method of claim 4 , further comprising:
determining, via sensors coupled to the processor, whether a sufficient amount of ink has been removed from the moveable band.

6 . The method of claim 1 , wherein a plurality of pattern features are printed on the moveable element prior to the pattern of ink being removed from the moveable element.

7 . The method of claim 1 , wherein the movable band represents a flexible plastic band.

8 . The method of claim 3 , wherein the ink removal unit and the printing source are formed on both adjacent sides of the illumination source.

9 . A pattern-forming three-dimensional printing system comprising:
a deposition control module configured to deposit a monomer layer, wherein the monomer layer is curable by light in a predetermined wavelength range. a printing element configured to print a pattern of ink onto a flexible band, wherein the ink is opaque to light in a predetermined wavelength range; and an illumination source configured to apply light in the predetermined wavelength through the band and onto a deposited monomer layer so as to cure the monomer layer in those regions on which no ink is printed.

10 . The system of claim 9 , further comprising:
a plurality of roller members for transitioning regions of the flexible band from the printing element to the illumination source and back to the printing source.

11 . The system of claim 9 , further comprising:
a processing unit coupled to the printing element, illumination source, and deposition control module, wherein the processing unit is configured to receive a three-dimensional model of an object to be printed and divide the three-dimensional model of the object into a plurality of object layers to be printed; wherein a layer of curable material is deposited on top of a previously-formed layer of curable material until each of the plurality of object layers are printed.

12 . The system of claim 9 , further comprising:
an ink removal unit configured to remove the pattern of ink formed on the flexible band after the monomer layer has been cured.

13 . The system of claim 12 , wherein the ink removal unit includes an ink wiper, ink washer, ink scraper, and a band drying element.

14 . The system of claim 13 , further comprising:
a sensor device coupled to the processor for detecting whether a sufficient amount of ink has been removed from the flexible band.

15 . A method for pattern-forming three-dimensional printing, the method comprising:
providing, via a deposition module, a monomer layer curable by light in a predetermined wavelength range; printing, via an ink loading element, a pattern of ink onto a flexible band, wherein the printed ink is opaque to light in the predetermined wavelength range; and applying, via an illumination source, light in the predetermined wavelength onto the monomer layer to cure the monomer layer in those regions on which no ink is printed; transitioning, via a plurality of roller elements, the flexible band from the ink loading element to the illumination source and back to the ink loading element; removing, via an ink removal unit, the pattern of ink from the flexible band after the layer of monomer layer has been cured; determining, via a processor, whether a desired three-dimensional object has been completed based on the previously cured monomer layer; determining, via sensors coupled to the processor, whether a sufficient amount of ink has been removed from the moveable band via sensors; and depositing, via the deposition module, an additional monomer layer on top of the previously cured monomer layer if it is determined that the object has not been completed.

Assignees

• Hewlett Packard Development Co

Inventors

• Nauka Krzysztof
• Ganapathiappan Sivapackia
• Ng Hou T

Classifications

• B29C64/393

  for controlling or regulating additive manufacturing processes · CPC title

• B33Y30/00

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

• B29K2105/0002

  monomers or prepolymers · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B41J2/435

  characterised by selective application of radiation to a printing material or impression-transfer material · CPC title