JP6464996B2 - Control device for 3D printer device - Google Patents

Description

  The present invention relates to a control device for a three-dimensional (3D) printer device, for example, a control device for a 3D printer device that supplies powder using a squeegee.

  Patent Document 1 discloses a 3D printer device in which powders are stacked through a powder supply groove provided inside a squeegee. In the 3D printer device of Patent Document 1, a squeegee extending in one direction in a horizontal plane is slid while being inclined with respect to the traveling direction, and the powder is supplied to the inside of the modeling tank.

Japanese Patent Laid-Open No. 2015-020328

  In order to prevent the powder from being supplied to the lamination region due to clogging of the powder in the powder supply groove, it is conceivable to attach a vibration device to the squeegee. However, in addition to the lateral direction (direction perpendicular to the direction in which the powder is laminated, the X-axis direction and the Y-axis direction), the squeegee is also vibrated in the longitudinal direction (the direction in which the powder is laminated, the Z-axis direction). Therefore, the powder may be supplied excessively.

  The present invention has been made to solve such a problem, and can suppress clogging of powder in a powder supply groove while suppressing excessive supply of powder to a lamination region. A device control device is provided.

  A control apparatus for a 3D printer apparatus according to an aspect of the present invention is a control apparatus for a 3D printer apparatus that stacks powder through a powder supply groove provided inside a squeegee, and the powder is stacked on the squeegee. A lateral vibration unit is provided that vibrates in a direction perpendicular to the direction in which the vibration is applied and does not impart vibration in the stacked direction, and the powder is supplied to the squeegee from the powder supply groove. The vibration in only the vertical direction is applied by the lateral vibration unit. With such a configuration, it is possible to suppress clogging of the powder in the powder supply groove while suppressing excessive supply of powder to the lamination region.

  Further, in the control device of the 3D printer device, in the direction in which the layers are stacked with respect to the modeling tank by the vertical vibration unit separately provided in the modeling tank only at the time of the powder supply in the powder filling process of the layer including the work base part. The vibration is applied. By adopting such a configuration, in the layer including the workpiece base portion, the bulk density and flatness of the workpiece base portion can be improved by vertical vibration, and the quality of the modeling portion formed thereon can be improved. .

  The present invention provides a control device for a 3D printer apparatus that can suppress clogging of powder in a powder supply groove while suppressing excessive supply of powder to a lamination region.

It is sectional drawing which illustrated the 3D printer apparatus which concerns on embodiment. It is sectional drawing which illustrated the modeling tank of the 3D printer apparatus which concerns on embodiment. It is a flowchart figure which illustrates the control method of the 3D printer apparatus which concerns on embodiment.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. However, the present invention is not limited to the following embodiment. In addition, for clarity of explanation, the following description and drawings are simplified as appropriate.

(Embodiment)
A 3D printer apparatus according to an embodiment will be described.
FIG. 1 is a cross-sectional view illustrating a 3D printer apparatus according to an embodiment.
As shown in FIG. 1, the 3D printer apparatus 100 according to the present embodiment includes a base 1, a surface plate 2, a modeling tank 3, a modeling tank support unit 4, a modeling tank drive unit 5, a column 6, a support unit 7, and a laser scanner. 8, an optical fiber 9, a laser oscillator 10, a squeegee 11, a basket 12, a powder distributor 13, a powder supply unit 14, and a control device 20. The control device 20 includes a vibration control unit 21, a longitudinal vibration unit 22, a lateral vibration unit 23, a passive vibration detection unit 24, and an antiphase vibration unit 25.

  The base 1 is a table for fixing the surface plate 2 and the column 6. The base 1 is installed on the floor so that the upper surface on which the surface plate 2 is placed is horizontal. In FIG. 1, an xyz orthogonal coordinate system is introduced for convenience of explanation. The z-axis direction is a vertical direction and is a direction perpendicular to the upper surface of the base 1. The x-axis direction and the y-axis direction are horizontal directions and are parallel to the upper surface of the base 1. The vertical direction refers to the vertical direction, and the horizontal direction refers to the horizontal direction.

  The surface plate 2 is placed and fixed on the horizontal upper surface of the base 1. The upper surface of the surface plate 2 is also horizontal, and powder is spread on the upper surface of the surface plate 2 to form a shaped object 50. In the example of FIG. 1, the surface plate 2 is a quadrangular columnar member. As shown in FIG. 1, a flange-like convex portion 2 a that protrudes in the horizontal direction is formed on the entire periphery of the upper surface of the surface plate 2. Since the outer peripheral surface of the convex portion 2 a is in contact with the inner surface of the modeling tank 3 throughout, the laminated powder 51 can be held in the space surrounded by the upper surface of the surface plate 2 and the inner surface of the modeling tank 3. it can. Here, by providing a seal member (not shown) made of felt, for example, on the outer peripheral surface of the convex portion 2 a that is in contact with the inner side surface of the modeling tank 3, the holding power of the laminated powder 51 can be increased.

  The modeling tank 3 is a cylindrical member that holds the powder spread on the upper surface of the surface plate 2 from the side surface. In the example of FIG. 1, since the surface plate 2 has a quadrangular prism shape, the modeling tank 3 is a square pipe having a flange portion 3a at the upper end. The modeling tank 3 is made of, for example, a stainless steel plate having a thickness of about 1 to 6 mm (preferably about 3 to 5 mm) and is lightweight. A powder layer is formed on the upper opening end 3b of the modeling tank 3, and a hardened layer is formed by irradiating the powder layer with a laser beam LB. The shape of the upper opening end 3b is, for example, 600 mm × 600 mm.

  The modeling tank 3 is installed so as to be movable in the vertical direction (z-axis direction). Each time a hardened layer is formed, the modeling tank 3 is raised by a certain amount relative to the surface plate 2 to form a modeled object 50. Here, in the 3D printer device 100 according to the embodiment, only the modeling tank 3 having a constant weight and a light weight is raised. Therefore, the powder layer can be formed with high accuracy every time. As a result, the molded article 50 can be formed with high accuracy.

  The modeling tank support part 4 is a support member that supports the lower surface of the flange part 3a at three points so that the upper surface of the flange part 3a of the modeling tank 3 is horizontal. The modeling tank support part 4 is connected to a connecting part 5c of a modeling tank drive unit 5 that moves the modeling tank 3 in the vertical direction (z-axis direction).

  The modeling tank drive unit 5 is a drive mechanism for moving the modeling tank 3 in the vertical direction (z-axis direction). The modeling tank driving unit 5 includes a motor 5a, a ball screw 5b, and a connecting portion 5c. When the motor 5a is driven, the ball screw 5b extending in the z-axis direction rotates. When the ball screw 5b rotates, the connecting portion 5c moves in the vertical direction (z-axis direction) along the ball screw 5b. Since the modeling tank support part 4 which supports the modeling tank 3 is connected with the connection part 5c as above-mentioned, the modeling tank 3 becomes movable by the modeling tank drive part 5 to an up-down direction (z-axis direction). The drive source of the modeling tank drive unit 5 is not limited to a motor, and a hydraulic cylinder or the like may be used.

  Here, the modeling tank drive unit 5 is fixed to an upper portion of a support column 6 that is erected substantially vertically (that is, in a vertical direction) from the base 1. As described above, in the 3D printer device according to the present embodiment, the modeling tank driving unit 5 is installed outside the modeling tank 3, and thus has excellent maintainability.

The laser scanner 8 irradiates the powder layer formed on the upper opening end 3 b of the modeling tank 3 with the laser beam LB. The laser scanner 8 has a lens and a mirror (not shown). Therefore, as shown in FIG. 1, the laser scanner 8 can focus the laser beam LB on the powder layer regardless of the position on the horizontal plane (xy plane) in the powder layer.
Here, the laser beam LB is generated in the laser oscillator 10 and introduced into the laser scanner 8 via the optical fiber 9.

  The laser scanner 8 is fixed to the flange portion 3 a of the modeling tank 3 through the support portion 7. Therefore, the distance between the laser scanner 8 and the powder layer that is the irradiation target of the laser beam LB can be kept constant. Therefore, the 3D printer device according to the embodiment can manufacture the modeled object 50 with high accuracy.

  The squeegee 11 includes a first squeegee 11a and a second squeegee 11b. Both the first squeegee 11a and the second squeegee 11b extend in the y-axis direction. A gap between the first squeegee 11a and the second squeegee 11b is a powder supply groove 11c. The powder supply groove 11c is also extended in the y-axis direction. Further, the squeegee 11 can slide in the x-axis direction from the one flange portion 3 a to the opposite flange portion 3 a via the upper opening end 3 b of the modeling tank 3.

  The basket 12 and the powder distributor 13 are for uniformly distributing the powder dropped from the powder supply unit 14 in the longitudinal direction of the powder supply groove 11c. The powder supply unit 14 is a small tank in which powder is stored. The powder is made of an inorganic material (metal or ceramic) or an organic material (plastic). Preferably, iron powder having an average particle size of about 20 μm is used.

Next, the control device 20 will be described. The control device 20 is a control device 20 of a 3D printer device that stacks powder through a powder supply groove 11 c provided inside the squeegee 11.
The vibration control unit 21 is connected to the longitudinal vibration unit 22, the lateral vibration unit 23, the passive vibration detection unit 24, and the antiphase vibration unit 25 by a signal line or the like. The vibration control unit 21 transmits drive and stop signals to the longitudinal vibration unit 22 and the lateral vibration unit 23. Thereby, the vibration control unit 21 controls the longitudinal vibration unit 22 and the lateral vibration unit 23. Further, the vibration control unit 21 receives information on vibration detected by the passive vibration detection unit 24. Further, the vibration control unit 21 transmits a signal to the anti-phase vibration unit 25 so as to generate a vibration having a phase opposite to that detected by the passive vibration detection unit 24.

  The longitudinal vibration unit 22 is provided in the modeling tank 3. For example, the longitudinal vibration unit 22 is provided on the surface plate 2 in the modeling tank 3. The longitudinal vibration unit 22 applies vertical vibration to the modeling tank 3. Driving and stopping of the longitudinal vibration unit 22 are controlled by a signal from the vibration control unit 21.

  The lateral vibration unit 23 is provided in the squeegee 11. For example, the lateral vibration unit 23 is provided on the side surface of the squeegee 11. The lateral vibration unit 23 applies horizontal vibration to the squeegee 11. For example, the lateral vibration unit 23 applies vibration in the X-axis direction. Alternatively, the lateral vibration unit 23 applies vibration in the Y-axis direction. The lateral vibration unit 23 may not only give vibration in one direction in the horizontal direction but also give vibrations in a plurality of directions in the horizontal direction. Driving and stopping of the lateral vibration unit 23 are controlled by a signal from the vibration control unit 21. As described above, the squeegee 11 is provided with the lateral vibration portion 23 that gives vibration in a direction perpendicular to the direction in which the powder is laminated and does not give vibration in the direction in which the powder is laminated.

  The passive vibration detection unit 24 is provided in the squeegee 11. The passive vibration detection unit 24 is provided above and below the side surface of the squeegee 11. The passive vibration detection unit 24 detects, for example, triaxial vibration including the x axis, the y axis, and the z axis. The passive vibration detection unit 24 transmits a signal to the vibration control unit 21 when detecting vibration.

  The passive vibration detection unit 24 is also provided in the support unit 7. The passive vibration detection unit 24 is provided, for example, at a portion extending in the vertical direction of the support unit 7.

  The antiphase vibration unit 25 is provided in the squeegee 11. The antiphase vibration unit 25 is provided on the side surface of the squeegee 11, for example. The antiphase vibration unit 25 generates an antiphase vibration with respect to the vibration detected by the passive vibration detection unit 24. Thereby, the vibration detected by the passive vibration detection unit 24 is canceled. Driving and stopping of the anti-phase vibration unit 25 are controlled by a signal from the vibration control unit 21.

  The antiphase vibration part 25 is also provided in the support part 7. The passive vibration detection unit 24 is provided, for example, at a portion extending in the vertical direction of the support unit 7.

Next, the formation method of the molded article 50 using the 3D printer apparatus 100 according to the present embodiment and the control method of the control device 20 in forming the molded article 50 will be described.
FIG. 2 is a diagram illustrating a modeling tank of the 3D printer apparatus according to the embodiment. As shown in FIG. 2, the modeled object 50 formed in the modeling tank 3 of the 3D printer apparatus 100 is divided into a work base part 52 and a modeling part 53. The modeling tank 3 is divided into a layer 62 including the workpiece base portion 52 and a layer 63 including the modeling portion 53 formed on the layer 62 including the workpiece base portion 52. Therefore, the formation method of the molded object 50 is divided into a formation method of the layer 62 including the workpiece base portion 52 and a formation method of the layer 63 including the modeling portion 53. Among these, the formation method of the layer 62 including the workpiece | work base part 52 includes the powder filling process. The method for forming the layer 63 including the modeling part 53 includes a stacking step and a melting and solidifying step.

  FIG. 3 is a flowchart illustrating the control method of the control device in the 3D printer device according to the embodiment. As shown in FIG. 3, the control method in the formation of the modeled object 50 is the same as the control method (step S201 to step S204) in the formation of the layer 62 including the workpiece base portion 52 and the control in the formation of the layer 63 including the modeling portion 53. The description will be divided into the method (steps S205 to S215). The control method in forming the layer 62 including the workpiece base 52 includes the control method in the powder filling process (steps S201 to S204). The control method in forming the layer 63 including the modeling part 53 includes a control method in the stacking process (steps S205 to S210) and a control method in the melt-solidifying process (steps S211 to S215).

  First, a method for forming the layer 62 including the workpiece base 52 and a control method (steps S201 to S204) in forming the layer 62 including the workpiece base 52 will be described.

  As shown in FIG. 2, the layer 62 including the work base portion 52 is a portion that is a basis of the modeling portion 53. The base height 52 a is a height from the upper surface of the surface plate 2 to the upper surface of the work base portion 52. In addition, when the modeling part 53 is formed on the upper surface of the work base part 52, the base height 52a is up to the upper surface of the work base part 52, but the modeling part 53 is higher than the upper surface of the work base part 52. When formed on the lower side, for example, on the side surface of the workpiece base portion 52, the foundation height 52 a is the lowermost surface of the modeling portion 53 formed on the side surface of the workpiece base portion 52. In this case, the upper surface of the layer 62 including the work base portion 52 other than the work base portion 52 is the lowermost surface of the modeling portion 53 formed on the side surface of the work base portion 52.

  First, the workpiece base 52 is installed on the upper surface of the surface plate 2. The workpiece base 52 is formed by cutting or machining a solid metal block, for example. Next, powder is filled between the workpiece base 52 and the side wall of the modeling tank 3. Examples of the powder filling method include the following methods. (A) The squeegee 11 is slid in the x-axis direction, and the powder is filled between the workpiece base portion 52 and the side wall of the modeling tank 3 from the powder supply groove 11c. Alternatively, the powder is filled with an apparatus that supplies powder other than the squeegee 11. (B) An operator directly fills the powder between the workpiece base 52 and the side wall of the modeling tank 3. Any other method may be used as long as powder can be filled between the workpiece base 52 and the side wall of the modeling tank 3.

  Next, as shown in step S201 in FIG. 3, it is determined whether or not the powder filling process for filling the powder up to the base height 52a is completed. In the case of (A), the determination is determined by a stop signal from the squeegee 11 or other powder supply device. In the case of (B), it is determined by a work completion switch that the worker puts in when work is completed. If not completed (No), powder is filled between the workpiece base 52 and the side wall of the modeling tank 3. On the other hand, if the process is completed (Yes), the process proceeds to step S202.

  As shown in step S202, when the powder filling up to the base height 52a is completed, the longitudinal vibration unit 22 is activated. Thereby, longitudinal vibration is given to the powder filled between the work base portion 52 and the side wall of the modeling tank 3. The thickness of one layer stacked in the stacking process of forming the modeling portion 53 is 20 to 50 μm. For this reason, longitudinal vibration is given before a lamination process, and the filling rate improvement of the powder between the work base part 52 and the side wall of the modeling tank 3 is performed, or the surface is flattened. In order to improve the bulk density of the powder, that is, the filling rate, the longitudinal vibration is effective. Therefore, the tapping effect is generated in the filled powder by the longitudinal vibration. In this way, the vibration in the direction to be laminated on the modeling tank 3 is given by the vertical vibration unit 22 separately provided in the modeling tank 3 only at the time of powder supply in the powder filling process of the layer including the workpiece base 52. The

  Note that lateral vibration may be added as long as other functions and devices are not affected. Further, when the modeling unit 53 is formed below the upper surface of the workpiece base unit 52, for example, on the side surface of the workpiece base unit 52, the foundation height 52 a is set to the modeling unit 53 formed on the side surface of the workpiece base unit 52. Therefore, the powder filling step is completed by filling the powder up to the lowermost surface of the modeling portion 53.

  Next, as shown in step S203, it is determined whether or not the powder filling step of filling the powder up to the base height 52a is completed. Since the upper surface of the filled powder moves downward due to the application of longitudinal vibration, the determination is made again in this step S203. The discrimination is determined by a filling detection sensor (not shown) that detects the upper surface position of the powder in the modeling tank 3. In addition to the filling detection sensor, the present invention is not limited to this as long as powder filling up to the base height 52a can be detected, such as image processing, weight measurement, and the number of times of supply when the squeegee 11 supplies the powder. If not complete (No), refill with powder. If completed (Yes), the process proceeds to step S204.

  As shown in step S204, when the powder filling step of filling the powder up to the base height 52a is completed, the longitudinal vibration unit 22 is stopped. In this way, the layer 62 including the work base portion 52 is formed.

  Next, a method for forming the layer 63 including the modeling portion 53 and a control method (steps S205 to S215) in forming the layer 63 including the modeling portion 53 will be described. First, the lamination process in the formation method of the layer 63 including the modeling part 53 and the control method (steps S205 to S210) in the lamination process will be described.

  As shown in step S205, the lateral vibration unit 23 provided in the squeegee 11 is activated. Thereby, generation | occurrence | production of the clogging by powder agglomerating within the squeegee 11 can be suppressed. On the other hand, when longitudinal vibration is applied to the squeegee 11 when the powder is stacked by the squeegee 11, the amount of powder falling from the squeegee 11 increases or decreases and does not become a constant amount. Therefore, when the powder is laminated by the squeegee 11, a lateral vibration is given. As described above, the lateral vibration unit 23 causes the lateral vibration unit 23 to vibrate only in the lateral direction (direction perpendicular to the direction in which the powder is laminated) with respect to the squeegee 11 when the powder is supplied from the powder supply groove 11c. Is granted.

  Next, as shown in step S206, the passive vibration detection unit 24 provided in the squeegee 11 is activated. And as shown to step S207, the antiphase vibration part 25 is started. When the passive vibration detection unit 24 detects longitudinal vibration, the passive vibration detection unit 24 transmits a signal to the vibration control unit 21. In analyzing the detected vibration, the frequency, period, amplitude, wavelength, wave number, and propagation direction are taken into consideration. The analysis may be performed by the passive vibration detection unit 24 or may be performed by the vibration control unit 21. The vibration control unit 21 that has received the signal from the passive vibration detection unit 24 transmits a signal to the antiphase vibration unit 25. The anti-phase vibration unit 25 that has received the signal from the vibration control unit 21 generates vibration having a phase opposite to that of the longitudinal vibration detected by the passive vibration detection unit 24. In this way, the longitudinal vibration detected by the passive vibration detector 24 is suppressed.

  Next, as shown in FIG. 1, the powder is supplied to the powder supply groove 11 c in a state where the squeegee 11 b is installed on the flange portion 3 a on the −x axis side. Lateral vibration is also applied to the powder supplied into the squeegee 11. Here, the powder for forming the powder layer for 2 times is supplied. That is, when the squeegee 11 slides from the flange portion 3 a on the −x axis side to the flange portion 3 a on the + x axis side (outward), a powder layer for one time is formed on the upper opening end 3 b of the modeling tank 3. Then, when the squeegee 11 slides from the flange portion 3a on the + x axis side to the flange portion 3a on the -x axis side (return path), another powder layer is formed on the upper opening end 3b of the modeling tank 3.

  For example, when the formation region of the hardened layer in which the powder is hardened by laser beam irradiation is narrow, the squeegee 11 is not slid to the maximum from the flange portion 3a on the −x axis side to the flange portion 3a on the + x axis side. In addition, the region where the hardened layer is formed may be covered and the slide may be stopped halfway. The amount of powder for forming the powder layer can be saved and the time can be shortened.

  Next, as shown in step S208, it is determined whether or not a single powder layer laminating step has been completed. The discrimination is performed by detecting the position of the squeegee 11 and the supply state of the powder to the squeegee 11. If the single powder layer laminating process is not completed (No), the laminating process is continued. When the single powder layer stacking step is completed (Yes), the process proceeds to step S209.

  As shown in step S <b> 209, when one powder layer stacking process is completed, the antiphase vibration unit 25 is stopped. And as shown to step S210, the horizontal vibration part 23 is stopped. In this way, a single powder layer is formed.

  Next, the melt-solidification process in the formation method of the layer 63 including the modeling part 53 and the control method (steps S211 to S215) in the melt-solidification process will be described.

  As indicated by a broken line in FIG. 1, the powder layer is irradiated with a laser beam LB. At this time, if an optical system device such as the laser scanner 8 or the laser oscillator 10 is vibrated, the optical path is blurred. Therefore, during the laser irradiation, these devices should not be vibrated. While the hardened layer is formed by irradiation with the laser beam, the squeegee 11 stands by on the flange portion 3a on the + x axis side. The hardened layer is a portion of the powder layer in which the powder is hardened.

  First, as shown in step S211, the passive vibration detection unit 24 provided in the support unit 7 is activated. And as shown to step S212, the antiphase vibration part 25 is started. When the passive vibration detection unit 24 detects not only longitudinal vibration and lateral vibration but also vibration, the passive vibration detection unit 24 transmits a signal to the vibration control unit 21. In analyzing the detected vibration, the frequency, period, amplitude, wavelength, wave number, and propagation direction are taken into consideration. The analysis may be performed by the passive vibration detection unit 24 or may be performed by the vibration control unit 21. The vibration control unit 21 that has received the signal from the passive vibration detection unit 24 transmits a signal to the antiphase vibration unit 25. The anti-phase vibration unit 25 that has received the signal from the vibration control unit 21 generates vibration having a phase opposite to that detected by the passive vibration detection unit 24. In this way, the vibration detected by the passive vibration detector 24 is suppressed. Thereby, since the antiphase vibration is given with respect to the optical system apparatus, the influence of the vibration which an optical system apparatus receives can be suppressed.

  Next, as shown in step S213, it is determined whether or not the melting and solidifying process is completed. The determination is made by, for example, an ON / OFF signal of the laser scanner 8 or the laser oscillator 10. If not completed (No), the melt solidification process is continued. If completed (Yes), the process proceeds to step S214.

  Next, as shown in step S214, when the melting and solidifying process is completed, the antiphase vibration unit 25 is stopped, and the process proceeds to step S215.

  Next, as shown in step S215, it is determined whether or not the formation of the modeling portion 53 is completed. If not completed (No), the process returns to step S205. If completed (Yes), the process is terminated. In this way, the formation of the shaped object 50 is completed.

Next, the effect of this embodiment will be described.
According to the 3D printer device 100 of the present embodiment, the control device 20 drives the longitudinal vibration unit 22 so as to impart longitudinal vibration to the modeling tank 3 when the layer 62 including the workpiece base portion 52 is formed. Let Thereby, the bulk density (filling rate) of the workpiece | work base part 52 can be increased effectively. In addition, since the flatness of the layer 62 including the workpiece base 52 is improved, the thickness of the stack in the stacking process can be made uniform, and the quality of the modeling portion 53 formed thereon can be improved. it can. Further, in the formation of the layer 63 including the modeling part 53, the longitudinal vibration by the longitudinal vibration part 22 is stopped. Thereby, in formation of the layer 63 containing the modeling part 53, the influence of the longitudinal vibration part 22 can be excluded.

  Further, when forming the layer 63 including the modeling portion 53, the control device 20 applies only the lateral vibration and causes the squeegee 11 to stack the powder. Thereby, it can suppress that powder is supplied excessively to a lamination field. Further, the thickness of the stack in the stacking process can be made uniform. Furthermore, powder clogging in the powder supply groove 11c can be suppressed. In addition, when the longitudinal vibration is detected by the passive vibration detection unit 24 provided in the squeegee 11, the control device 20 drives the anti-phase vibration unit 25 to generate the anti-phase vibration. Thereby, since a vertical vibration is not provided with respect to the squeegee 11, it can suppress that powder is supplied excessively to a lamination | stacking area | region.

  In addition, when the control device 20 melts and solidifies, when the vibration is detected by the passive vibration detection unit 24 provided in the support unit 7, the control device 20 drives the anti-phase vibration unit 25 to generate the anti-phase vibration. generate. Thereby, the occurrence of blurring in the optical path can be suppressed. Moreover, the quality of the modeling part 53 can be improved.

  As described above, according to the 3D printer apparatus 100 of the present embodiment, different vibrations are given to the powder filling process, the stacking process, and the melting and solidifying process, so that the quality of the modeling portion 53 can be improved.

  The embodiment of the control device of the 3D printer apparatus 100 according to the present invention has been described above. However, the present invention is not limited to the configuration described above, and can be changed without departing from the technical idea of the present invention.

  For example, in this embodiment, the laser beam is irradiated after the squeegee 11 is slid from the −x-axis side flange portion 3a to the + x-axis side flange portion 3a, but this is not restrictive. The laser beam may be irradiated after one reciprocation.

DESCRIPTION OF SYMBOLS 1 Base 2 Surface plate 2a Convex part 3 Modeling tank 3a Flange part 4 Modeling tank support part 5 Modeling tank drive part 6 Column 7 Support part 8 Laser scanner 9 Optical fiber 10 Laser oscillator 11 Squeegee 11a First squeegee 11a
11b Second squeegee 11b
11c Powder supply groove 12 樋 13 Powder distributor 14 Powder supply device 20 Control device 21 Vibration control unit 22 Longitudinal vibration unit 23 Horizontal vibration unit 24 Passive vibration detection unit 25 Antiphase vibration unit 50 Modeling object 51 Laminated powder 52 Work base 52a Base height 53 Modeling part 52, 62 layers

Claims (1)

A control device for a 3D printer device for laminating powder through a powder supply groove provided inside a squeegee,
The squeegee is provided with a lateral vibration portion that gives vibration in a direction perpendicular to the direction in which the powder is laminated, and does not give the vibration in the lamination direction,
A control device for a 3D printer in which the vibration in only the vertical direction is applied to the squeegee by the lateral vibration unit when powder is supplied from the powder supply groove ,
Control of the 3D printer in which the vibration in the stacking direction is applied to the modeling tank by a vertical vibration unit separately provided in the modeling tank only when the powder is supplied in the powder filling step of the layer including the workpiece base Equipment .

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