DEVICE AND METHOD FOR CONSTRUCTING A LAMINAR BODY COMPRISING AT LEAST ONE POSITION ADJUSTABLE BODY DEFINING THE WORKING AREA
First Claim
1. A device for constructing a layered body from a plurality of superimposed layers of free-flowing material, on a build platform within a build space, the layers being solidified and joined together in locally predetermined areas by the action of a binder, so that at least one molding is formed by the solidified and joined areas of the layers, the device comprising:
- a discharging device which is movable back and forth over the build space in at least one discharge direction and which has at least one discharge opening from which the free-flowing material is discharged in individual superimposed layers during the movement, of the. discharging device,wherein at least one body delimiting the build space in at least one discharge direction of the discharging device and the build platform are adjustable vertically relative to each other in such a way that a surface of the at least one body facing the discharge opening is aligned flush with a topmost layer of the layer body yet to be produced or already produced, in order to close the discharge opening of the discharging device and to prevent the discharging device form discharging free-flowing material or to discharge free-flowing material that is not used for layering into a collecting container when the discharge opening is located above the body.
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Accused Products
Abstract
The invention relates to a device (13) for constructing a laminar body (5) from a plurality of superimposed layers of free-flowing material, in particular particulate material, an a build platform (6) within a working area (11). The layers are solidified in locally predetermined regions by the action of binders and are joined together so that at least one moulded body (4) is formed by the solidified and joined regions of the layers. The device comprises a discharging device (1) movable back and forth over the working area (11) in at least one discharge direction and having at least one discharge opening (14) from which the free-flowing material can be discharged in individual superimposed layers during the movement of the discharging device (1) and the build platform (6) are adjustable vertically relative to each other in accordance with the specific progress with which the laminar body (5) is being constructed, in such a manner that a surface of the at least one body (8, 8a) facing the discharge opening (14) is aligned flush with a laminar body (5) topmost layer that is yet to be produced or has already been produced, in order to dose the discharge opening (14) of the discharging device (1) and prevent the discharging device from discharging free-flowing material or in order to discharge free-flowing material not used for laminar construction into a collecting container (7) when the discharge opening (14) is located above the body (8, 8a).
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Citations
22 Claims
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1. A device for constructing a layered body from a plurality of superimposed layers of free-flowing material, on a build platform within a build space, the layers being solidified and joined together in locally predetermined areas by the action of a binder, so that at least one molding is formed by the solidified and joined areas of the layers, the device comprising:
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a discharging device which is movable back and forth over the build space in at least one discharge direction and which has at least one discharge opening from which the free-flowing material is discharged in individual superimposed layers during the movement, of the. discharging device, wherein at least one body delimiting the build space in at least one discharge direction of the discharging device and the build platform are adjustable vertically relative to each other in such a way that a surface of the at least one body facing the discharge opening is aligned flush with a topmost layer of the layer body yet to be produced or already produced, in order to close the discharge opening of the discharging device and to prevent the discharging device form discharging free-flowing material or to discharge free-flowing material that is not used for layering into a collecting container when the discharge opening is located above the body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 11)
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8. (canceled)
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10. (canceled)
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12. A method for constructing a layered body from a plurality of superimposed layers of free-flowing material, on a build platform (6) within a build space, the layers being solidified and joined together in locally predetermined areas by the action of a binder, so that at least one molding is formed by the solidified and joined areas of the layers, a discharging device being movable back and forth over the build space in at least one discharge direction and having at least one discharge opening from which the free-flowing material is discharged in individual superimposed layers during the movement of the discharging device,
wherein at least one body delimiting the build space in at least one discharge direction of the discharging device and the build platform are adjusted vertically relative to each other as the construction of the layer body progresses, in such a way that a surface of the at least one body facing the discharge opening is aligned flush with a topmost layer of the layer body yet to be produced or already produced, in order to close the discharge opening of the discharging device and to prevent the discharging device from discharging free-flowing material or to collect free-flowing material that is not used for layering when the discharge opening is located above the at least one body.
Specification