Method for applying particle material including a metering system and leveling element
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B05D-003/12
B05D-001/26
B05C-019/04
B05C-019/06
B22F-003/00
B29C-041/12
B29C-041/52
B29C-067/00
출원번호
US-0327856
(2011-12-16)
등록번호
US-9463488
(2016-10-11)
발명자
/ 주소
Ederer, Ingo
Kashani-Shirazi, Kaveh
출원인 / 주소
VOXELJET AG
대리인 / 주소
The Dobrusin Law Firm, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
95
초록▼
This document describes a process and a device for applying fluids, specifically particle material, on an area to be coated, which is viewed in forward moving direction of the coater, chat fluid is applied on the area to be coated and then a levelling element is run over the applied fluid, whereby t
This document describes a process and a device for applying fluids, specifically particle material, on an area to be coated, which is viewed in forward moving direction of the coater, chat fluid is applied on the area to be coated and then a levelling element is run over the applied fluid, whereby the fluid is led from a metering system provided with an opening, which oscillates when applying the fluid. The opening shall be designed in such a way that when the metering system is at a standstill this is closed by forming an angle of repose of the fluid.
대표청구항▼
1. A process for the application of a fluid on an area to be coated comprising the steps of: metering the fluid through an opening in a container of a metering system while the metering system is moving in a forward direction;applying the fluid on the area to be coated;levelling the fluid applied on
1. A process for the application of a fluid on an area to be coated comprising the steps of: metering the fluid through an opening in a container of a metering system while the metering system is moving in a forward direction;applying the fluid on the area to be coated;levelling the fluid applied on the area using a levelling element while metering system is moving in the forward direction, andstopping the metering system by placing it at a standstill;wherein the metering system performs an oscillation at least when applying the fluid,wherein the opening is closed when the metering system is at a standstill by the fluid forming an angle of repose in the opening;wherein the container has a bottom wall so that vertical flow out of the container is prevented;wherein the opening is located above the levelling element, andwherein the opening is located on a wall of the metering system that is perpendicular to the area to be coated;wherein the container of the metering system and the leveling element travel together in the forward direction, and the step of leveling the applied fluid occurs immediately after the step of applying the fluid wherein the method includes a step of selectively applying a binding agent over the levelled fluid. 2. The process of claim 1, wherein the oscillation includes horizontal oscillating or/and vertical oscillating or/and rotational oscillating, and the levelling element is designed as a blade, which oscillates with the metering system. 3. The process of claim 1, wherein the levelling element is designed as a rotating roller, whose rotary motion is positioned against the forward direction of the coater. 4. The process of claim 1, wherein a metering quantity of the fluid is always smaller than a residue volume of the fluid available in the metering system. 5. The process of claim 1, wherein the levelling element sets an amount of the fluid vertically to the area to be coated. 6. The process of claim 1, wherein the opening is located in a first aperture fixed in the wall, the wall is an upright wall, and the first aperture is generally perpendicular to a build platform located below the device; and wherein the container includes a second aperture at the top of the container for filling the container wherein the second aperture remains open during the steps of metering, applying, levelling, and forming an angle of repose in the opening. 7. The process of claim 6, comprising breaking down the angle of repose formed in the opening when the vibration mechanism is activated; and a step of filling the container; and wherein a generally horizontal orientation of the first aperture and a generally upward orientation of the second aperture is maintained during the steps of metering, applying, levelling and forming an angle of repose in the opening, the filling the container. 8. A process for the application of a fluid including a particle material, comprising the steps of: a) metering the fluid through an opening in a side wall of a container of a metering system while the metering system is moving in a forward direction, wherein the opening is located on the forward side of the container;b) oscillating the metering system while the fluid is being metered, including oscillating the container at least in the forward direction, so that the particle material fluidizes and flows out the side opening;c) levelling the applied fluid while the metering system is moving in the forward direction andd) stopping the oscillation of the metering system so that an angle of repose of the fluid is formed in the opening and the particle material remains in the container;wherein the container has a bottom wall, and the bottom wall is parallel to an area to be coated;wherein the container of the metering system and the leveling element travel together in the forward direction, and the step of leveling the applied fluid occurs immediately after the step of applying the fluid wherein the method includes a step of selectively applying a binding agent over the levelled fluid. 9. The process of claim 8, wherein the oscillating step includes horizontal oscillating, vertical oscillating, rotational oscillating, or any combination thereof. 10. The process of claim 9, wherein the step of levelling is performed using a blade that oscillates with the metering system. 11. The process of claim 10, wherein the oscillating is performed by eccentric driven rocker. 12. The process of claim 9, wherein the step of levelling is performed by a rotating roller. 13. The process of claim 12, wherein the oscillating is performed by eccentric driven rocker. 14. The process of claim 8, wherein the step of levelling is performed using a blade that oscillates with the metering system. 15. The process of claim 8, wherein the step of levelling is performed by a rotating roller. 16. The process of claim 8, wherein the amount of fluid being metered is smaller than a residual amount of fluid in the metering system. 17. The process of claim 8, wherein the oscillating is performed by eccentric driven rocker. 18. The process of claim 8, wherein the metering system comprises: a. an oscillatable rocker having an external wall;b. an inclined sheet opposite the rocker forming a container between the rocker and the inclined sheet; andc. the levelling element located below the container andd. the bottom wall is connected to the inclined sheet;wherein the opening is formed below the oscillatable rocker so that the levelling element prevents the fluid from being vertically applied. 19. The process of claim 18, wherein the opening is located in a first aperture fixed in the side wall, the side wall is an upright wall, and the first aperture is generally perpendicular to a build platform located below the device; the process includes a step of filling the container; and wherein the container includes a second aperture at the top of the container for filling the container wherein the second aperture remains open during the steps a through d of metering, oscillating, leveling and stopping and during the step of filling the container. 20. The process of claim 19, comprising breaking down the angle of repose formed in the opening when the vibration mechanism is activated; a step of filling the container; and wherein a generally horizontal orientation of the first aperture and a generally upward orientation of the second aperture is maintained during the steps a through d of metering, oscillating, leveling and stopping and during the step of filling the container. 21. A process for building a 3-dimensional part in layers comprising the steps of: metering a fluid through an opening in a container of a metering system while the metering system is moving in a forward direction;applying the fluid over an area to be coated;levelling the fluid applied on the area using a levelling element while the metering system is moving in the forward direction, andselectively applying a binding agent over the levelled fluid;stopping the metering system by placing it at a standstill;wherein the metering system performs an oscillation at least when applying the fluid,wherein the opening is closed when the metering system is at the standstill by the fluid forming an angle of repose in the opening;wherein the container has a bottom wall so that vertical flow out of the container is prevented;wherein the opening is located above the levelling element, andwherein the opening is located on a wall of the metering system that is perpendicular to the area to be coated;wherein the container of the metering system and the leveling element travel together in the forward direction, and the step of leveling the applied fluid occurs immediately after the step of applying the fluid.
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