Modeling apparatus, modeling method, and program

Abstract

To obtain a good quality molding layer by reducing excess / deficiency of soaking of a molding liquid.SOLUTION: A three-dimensional molding apparatus 100 includes: a molding tank 22 which is an example of a placing part on which a powder 20 is placed; a flattening roller 12 which is an example of a rotating member that flattens a surface of the powder fed into the molding tank 22 to form a powder layer 31 by rotating while moving; a head 52 which is an example of a solidifying part that applies a molding liquid 10 to the powder layer 31 placed in the molding tank 22 and solidifies the powder layer 31 to which the molding liquid 10 is applied to form a molding layer 30; and a control part 500 which forms a second powder layer 31B on a first powder layer 31A by controlling the flattening roller 12 after the first powder layer 31A is formed by controlling the flattening roller 12. The control part 500 controls the flattening roller 12 so that a rugged shape whose phase matches a periodic rugged shape formed on the first powder layer 31A is formed on the second powder layer 31B.SELECTED DRAWING: Figure 8

Claims

1. A placement portion on which powder is placed; a rotating member that rotates while moving to flatten a surface of the powder supplied to the placement section, thereby forming a powder layer; a solidification unit that applies a modeling liquid to the powder layer placed on the placement unit and solidifies the powder layer to which the modeling liquid has been applied, thereby forming a modeling layer; a control unit that controls the rotating member to form a first powder layer, and then controls the rotating member to form a second powder layer on the first powder layer; Equipped with the control unit controls the rotating member so that a portion of the rotating member in contact with the powder moves in the same direction as a direction in which the rotating member moves to form the powder layer; the control unit controls the rotating member such that a moving speed of the rotating member when moving to form the second powder layer matches a moving speed of the rotating member when moving to form the first powder layer; The control unit of the molding device controls the rotating member so that a concave-convex shape that is in phase with the periodic concave-convex shape formed on the first powder layer is formed on the second powder layer.

2. The control unit is forming the powder layer by controlling a rotating member to move in a first direction parallel to a surface of the powder supplied to the placement portion; 2. The molding apparatus according to claim 1, wherein the rotating member is controlled so that a rotational phase of the rotating member when it starts to move in the first direction to form the first powder layer coincides with a rotational phase of the rotating member when it starts to move in the first direction to form the second powder layer.

3. The control unit is forming the first powder layer by controlling a rotating member to move in a first direction parallel to a surface of the powder supplied to the placement portion; forming the second powder layer by controlling the rotating member to move in a second direction opposite to the first direction; 2. The molding apparatus according to claim 1, wherein the rotational phase of the rotating member when starting to move in the second direction is controlled so that the phase of the periodic uneven shape formed on the first powder layer and the phase of the periodic uneven shape formed on the second powder layer match.

4. The control unit: A molding apparatus according to any one of claims 1 to 3, wherein the rotating member is controlled so that the rotational speed of the rotating member when the rotating member moves to form the second powder layer matches the rotational speed of the rotating member when the rotating member moves to form the first powder layer.

5. The control unit: A molding apparatus according to any one of claims 1 to 4, wherein after forming the first powder layer by controlling the rotating member, the second powder layer is formed on the unsolidified first powder layer by the rotating member, and a molding liquid is applied to the powder layer including at least the first powder layer and the second powder layer by controlling the solidification unit, thereby solidifying the molding layer.

6. The control unit: In all the powder layers including the first powder layer and the second powder layer, A molding apparatus as described in any one of claims 1 to 5, wherein the rotating member is controlled so that, when the rotation speed per unit time of the rotating member is A [rpm] and the moving speed of the rotating member when moving to form the powder layer is B [mm / s], the difference in B / A [mm] is within 10% and the difference in the rotational phase of the rotating member when it starts to move to form the powder layer is within 10%.

7. a flattening step of flattening a surface of the powder supplied to the placement section, by rotating a rotating member while moving the rotating member in contact with the powder and controlling the rotating member so that a portion of the rotating member in contact with the powder moves in the same direction as a direction in which the rotating member moves to form the powder layer on the placement section, thereby forming the powder layer; a solidification step of applying a modeling liquid to the powder layer placed on the placement part and solidifying the powder layer to which the modeling liquid has been applied to form a modeling layer; Equipped with a molding method in which, in the planarizing step, after forming a first powder layer, the rotating member is controlled so that a moving speed of the rotating member when moving to form a second powder layer on the first powder layer matches a moving speed of the rotating member when moving to form the first powder layer, thereby forming the second powder layer and forming on the second powder layer a concave-convex shape that is in phase with the periodic concave-convex shape formed on the first powder layer.

8. A placement portion on which powder is placed; a rotating member that rotates while moving to flatten a surface of the powder supplied to the placement section, thereby forming a powder layer; a solidification unit that applies a modeling liquid to the powder layer placed on the placement unit and solidifies the powder layer to which the modeling liquid has been applied, thereby forming a modeling layer; A program for controlling a molding apparatus comprising: controlling the rotating member so that, when forming the powder layer on the placement portion, a portion of the rotating member that comes into contact with the powder moves in the same direction as a direction in which the rotating member moves to form the powder layer; a program for controlling the rotating member to form a first powder layer, and then forming a second powder layer on the first powder layer by controlling the rotating member so that a moving speed of the rotating member when moving to form a second powder layer on the first powder layer matches a moving speed of the rotating member when moving to form the first powder layer, and controlling the rotating member so that an uneven shape that is in phase with the periodic uneven shape formed on the first powder layer is formed on the second powder layer.

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