JP2013067018A - Three-dimensional shaping apparatus and shaping system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a three-dimensional shaping apparatus that can automatically start shaping processing so as to end it at a time designated by a user.SOLUTION: The three-dimensional shaping apparatus is composed of: a shaping data storage means that holds shaping data including the arrangement form indicating the three-dimensional shape of a shaping object and the position and posture of the shaping object on a shaping stage 112; a shaping processing part 402 that executes shaping processing for forming a shaping object on the shaping stage 112 based on the shaping data; an estimated shaping time storage means that holds the estimated shaping time calculated on the basis of the three-dimensional shape of the shaping object and the position and posture of the shaping object on the shaping stage 112 and required for the shaping processing; a scheduled start time setting part 403 that is capable of receiving the designation of the scheduled start time of the shaping processing; a scheduled end time calculating part 404 that calculates the scheduled end time on the basis of the estimated shaping time and the scheduled start time; and a scheduled time display means that displays the scheduled start time and the scheduled end time. The shaping processing part 402 starts the shaping processing at the scheduled start time.

Description

  The present invention relates to a three-dimensional modeling apparatus and a modeling system, and more particularly, to an improvement of a three-dimensional modeling apparatus that sequentially forms a modeling material layer made of a modeling material on a modeling stage.

  In recent years, a three-dimensional model is simply manufactured using an additive manufacturing method. The additive manufacturing method is a forming method for forming a three-dimensional object by forming a thin plate having the same two-dimensional shape as each layer when a modeling object is divided into a number of thin layers, and rapid prototyping. It is used for. Such additive manufacturing methods include stereolithography, powder bonding, sheet deposition, resin extrusion, and ink jet methods (for example, Patent Document 1).

  Inkjet modeling is a modeling method that utilizes inkjet printer technology. Instead of ink, a photocurable modeling material such as ultraviolet (UV) curable resin is used, and the modeling material is ejected from a nozzle to form a modeling stage. The modeling material deposited on top is irradiated with light and solidified. In this modeling method, a slice layer made of a modeling material is formed by two-dimensionally scanning a modeling material nozzle in which a large number of discharge ports for discharging the modeling material are arranged substantially linearly, in parallel with the modeling stage, A three-dimensional model is formed by sequentially laminating slice layers.

JP 2004-90530 A

  In the case of an inkjet type modeling apparatus, a model material that constitutes a modeling object and a support material that supports an overhang portion of the modeling object are used as the modeling material. In such a modeling apparatus, if the modeled object formed on the modeling stage is left as it is, the support material may be deliquescent and spilled from the modeling stage. For this reason, it is desirable to take out the molded object immediately after the modeling process is completed.

  However, since the modeling process requires several hours to several tens of hours, the user may not be near at the end of the modeling process, and the modeled object may be left for a long time after the modeling process ends. There was a problem. If the modeling process ends at the time desired by the user, such a problem can be solved. Therefore, it is conceivable to start the modeling process so that the modeling process ends at a desired time. In order to end the modeling process at a desired time, it is necessary to start the modeling process at an appropriate timing in consideration of the time required for the modeling process. For this reason, the user has to calculate the start time from the time required for the modeling process and the end time, and to start the modeling process when the start time arrives, and there is a problem that the work is complicated.

  Moreover, the modeling material used for modeling processing is accommodated in the tank. For this reason, if the remaining amount of the modeling material in the tank decreases, it is necessary to replace the tank and replenish the modeling material. If the modeling material disappears during the modeling process, the modeling process is stopped. In this case, if the tank is left without being replaced, there is a problem that the modeling process is not completed even if the predetermined modeling process end time is reached.

  This invention is made in view of the said situation, and it aims at providing the three-dimensional modeling apparatus and modeling system which can start a modeling process automatically so that it may complete | finish at the time designated by the user. To do. It is another object of the present invention to provide a three-dimensional modeling apparatus that can easily make a modeling reservation specifying a scheduled start time or a scheduled end time.

  Another object of the present invention is to provide a three-dimensional modeling apparatus that allows a user to recognize in advance whether or not the modeling material tank needs to be replaced during the modeling process. It is another object of the present invention to provide a three-dimensional modeling apparatus that allows a user to recognize in advance an appropriate timing for exchanging a modeling material tank during the modeling process.

  Another object of the present invention is to provide a three-dimensional modeling apparatus that can prompt the user to replace the modeling material tank or notify the end of the modeling process.

  The three-dimensional modeling apparatus according to the first aspect of the present invention is a three-dimensional modeling apparatus that sequentially stacks and forms a modeling material layer made of modeling material on a modeling stage. The three-dimensional modeling apparatus forms a modeling object on the modeling stage. Modeling data storage means for holding modeling data including an arrangement mode indicating the position and orientation of the object, and modeling processing means for performing modeling processing for forming a modeling object on the modeling stage based on the modeling data. An estimated modeling time storage means for holding an estimated modeling time required for the modeling process calculated based on the three-dimensional shape of the modeling object and the position and orientation on the modeling stage; The scheduled time receiving means capable of accepting the designation of one of the scheduled end times, and the estimated modeling time and the scheduled time receiving means. A modeling time calculation means for obtaining the other scheduled time based on the scheduled time of the other, a schedule time of the other scheduled time calculated by the modeling time calculation means and the one scheduled time received by the scheduled time receiving means Time modeling means, and the modeling processing means is configured to start the modeling processing at the scheduled start time.

  In this three-dimensional modeling apparatus, the modeling process can be automatically started so that the modeling process ends at the time specified by the user. For this reason, since a modeling process is complete | finished at the time which a user desired, it can suppress that a modeling thing is left as it is after the completion of a modeling process. Further, since the user only has to specify the scheduled start time or the scheduled end time, the modeling reservation can be easily performed.

  The three-dimensional modeling apparatus according to the second aspect of the present invention detects, in addition to the above configuration, a removable modeling material tank for housing the modeling material before use, and the remaining amount of the modeling material in the modeling material tank. Based on the remaining amount detecting means, the tank replacement determining means for determining whether or not the modeling material tank needs to be replaced during execution of the modeling process based on the remaining amount, and the determination result before starting the modeling process. And a determination result display means for displaying.

  According to such a configuration, the determination result of whether or not the tank needs to be replaced is displayed before the start of the modeling process. Therefore, the user determines in advance whether or not the modeling material tank needs to be replaced during the modeling process. Can be recognized. For example, the user can recognize whether or not tank replacement is necessary when designating the scheduled start time or the scheduled end time of the modeling process.

  In addition to the above-described configuration, the three-dimensional modeling apparatus according to the third aspect of the present invention includes an estimated usage calculation means for obtaining an estimated usage of the modeling material in the modeling processing based on the modeling data, and the remaining of the modeling material. A recommended time calculating means for obtaining a recommended time for tank replacement based on the amount and the estimated usage amount, and the determination result display means is configured to display the recommended time before the modeling process is started. The

  According to such a configuration, since the recommended time for tank replacement is obtained from the remaining amount of modeling material and the estimated usage amount and displayed before the modeling process starts, the user can display the modeling material tank during the modeling process. It is possible to recognize in advance the appropriate timing for replacement.

  A three-dimensional modeling apparatus according to a fourth aspect of the present invention includes, in addition to the above configuration, a reserved time storage unit that holds the scheduled start time and the scheduled end time in association with the modeling data, and the tank replacement determination unit determines When there is a modeling process scheduled to be executed before the target modeling process, the necessity of tank replacement is determined based on the estimated usage amount of the modeling material in the planned modeling process and the current remaining amount of the modeling material Configured to do.

  According to such a configuration, the necessity determination is simply performed as compared to the case where the necessity of tank replacement is determined by comparing the estimated usage amount of the modeling material in the modeling process to be determined with the current remaining amount of the modeling material. Accuracy can be improved.

  The three-dimensional modeling apparatus according to the fifth aspect of the present invention, in addition to the above-described configuration, prompts the exchange of the tank when the recommended time arrives, and the transmission destination address storage means that holds the transmission destination address of the notification mail in association with the modeling data And a notification mail transmitting means for transmitting the notification mail including the message to the transmission destination designated by the transmission destination address. According to such a configuration, since the notification mail is transmitted when the recommended time for tank replacement arrives, it is possible to prompt the user to replace the modeling material tank.

  In addition to the above-described configuration, the three-dimensional modeling apparatus according to the sixth aspect of the present invention includes a transmission destination address storage unit that holds a transmission destination address of a notification mail in association with the modeling data, and a modeling process when the scheduled end time arrives. A notification mail transmission unit configured to transmit the notification mail including a message for informing the end to the transmission destination designated by the transmission destination address. According to such a configuration, since the notification mail is transmitted when the modeling process is scheduled to end, the user can be notified of the completion of the modeling process.

  A modeling system according to a seventh aspect of the present invention is connected to the modeling data creation device that generates modeling data for forming a modeling target and the modeling data creation device via a communication network, and based on the modeling data, A modeling system including a three-dimensional modeling apparatus that performs a modeling process in which a modeling material layer composed of modeling materials is sequentially formed on a modeling stage, wherein the modeling data creation apparatus includes the three-dimensional shape of the modeling object and the modeling Based on the modeling data generating means for generating modeling data including an arrangement mode indicating the position and orientation of the modeling object on the stage, the three-dimensional shape of the modeling object and the position and attitude on the modeling stage, the modeling Estimated modeling time calculating means for calculating the estimated modeling time required for the process, and either one of the scheduled start time and the scheduled end time of the modeling process Scheduled time receiving means capable of receiving a specified time, modeling time calculating means for obtaining the other scheduled time based on the estimated modeling time and one scheduled time received by the scheduled time receiving means, and the scheduled time A modeling setting transmission unit configured to transmit one scheduled time received by the receiving unit and the other scheduled time calculated by the modeling time calculating unit together with the modeling data to the three-dimensional modeling apparatus, and the three-dimensional modeling apparatus However, when the scheduled start time arrives, the modeling time based on the modeling data associated with the scheduled start time when the scheduled start time arrives. And a modeling processing means for starting the processing.

  According to the present invention, it is possible to automatically start the modeling process so that the modeling process ends at the time specified by the user. Further, since the user only has to specify the scheduled start time or the scheduled end time, the modeling reservation can be easily performed.

  Further, in the three-dimensional modeling apparatus according to the present invention, the determination result of whether or not the tank needs to be replaced is displayed before the modeling process is started, so whether or not the user needs to replace the modeling material tank during the modeling process. Can be recognized in advance. Furthermore, since the recommended time for tank replacement is obtained from the remaining amount of modeling material and the estimated usage amount and displayed before the modeling process starts, the user is appropriate to replace the modeling material tank during the modeling process. The timing can be recognized in advance.

  Further, in the three-dimensional modeling apparatus according to the present invention, a notification mail is transmitted when the recommended time for tank replacement arrives, or when the planned end time for modeling processing arrives, so the user can replace the modeling material tank. Or the end of the modeling process can be notified.

1 is a system diagram illustrating a configuration example of a modeling system 100 including a three-dimensional modeling apparatus 10 according to an embodiment of the present invention. FIG. 2 is a perspective view illustrating a configuration example of the three-dimensional modeling apparatus 10 in FIG. 1, and illustrates a state in the work space 110 and the cartridge housing unit 130. It is the figure which showed an example of schematic structure of the head unit 111 of FIG. 2, and the mode that the head unit 111 was seen from the x, y, z direction is shown. It is explanatory drawing which showed typically an example of the operation | movement at the time of modeling in the three-dimensional modeling apparatus 10 of FIG. 2, and a mode that the three-dimensional molded item is formed on the modeling stage 112 is shown. It is explanatory drawing which showed typically an example of the operation | movement at the time of modeling in the three-dimensional modeling apparatus 10 of FIG. 2, and the mode of the main scanning forward path | route in the x direction and the main scanning backward path | route is shown. It is explanatory drawing which showed typically a mode that four passes (scan of an x direction) were performed with respect to each field Fd1-Fd4 formed on the modeling stage 112. FIG. It is the figure which showed an example of the arrangement | positioning aspect of a modeling target object. It is the block diagram which showed the example of 1 structure of the modeling requester terminal 20 of FIG. It is the block diagram which showed an example of the function structure in the three-dimensional modeling apparatus 10 of FIG. It is the figure which showed an example of the operation | movement at the time of modeling reservation in the three-dimensional modeling apparatus 10 of FIG. 9, and the modeling setting reception screen 50 and the reservation modeling setting screen 60 are shown. It is the figure which showed an example of the operation | movement in the three-dimensional modeling apparatus 10 of FIG. 9, and the standby screen 70 of reservation modeling and the monitor screen 80 in process of modeling are shown. It is the figure which showed an example of the operation | movement at the time of modeling setting in the modeling requester terminal 20 of FIG. 8, and the notification mail setting screen 230 is shown. It is the flowchart which showed an example of the operation | movement at the time of modeling reservation in the three-dimensional modeling apparatus 10 of FIG. It is the flowchart which showed an example of the operation | movement at the time of the modeling process in the three-dimensional modeling apparatus 10 of FIG. It is the figure which showed another example of the operation | movement at the time of modeling reservation in the three-dimensional modeling apparatus 10 of FIG. 9, and the case where the reservation jobs J1 and J2 exist before the determination target job J3 is shown. It is the figure which showed an example of remaining amount change in case there exists overlap period T3 in the recommendation period T1 of the model material cartridge 13M, and the recommendation period T2 of the support material cartridge 13S. It is the block diagram which showed the other structural example of the modeling requester terminal 20 of FIG. FIG. 18 is a diagram showing an example of an operation at the time of modeling setting in the modeling requester terminal 20 of FIG. 17, and shows a security lock setting screen 240. It is the block diagram which showed another example of the function structure in the three-dimensional modeling apparatus 10 of FIG. It is the figure which showed an example of the operation | movement at the time of remodeling in the three-dimensional modeling apparatus 10 of FIG. 19, and the log | history list screen 90 displayed on the display part 122 at the time of browsing of a modeling log | history is shown. FIG. 20 is a diagram illustrating an example of an operation at the time of remodeling in the three-dimensional modeling apparatus 10 of FIG. 19, and an authentication screen 92 and an error screen 95 displayed on the display unit 122 are illustrated. It is the flowchart which showed an example of the operation | movement at the time of remodeling in the three-dimensional modeling apparatus 10 of FIG. It is the flowchart which showed an example of the operation | movement at the time of completion | finish of the modeling process in the three-dimensional modeling apparatus 10 of FIG.

  First, a schematic configuration of an ink jet type modeling apparatus premised on a three-dimensional modeling apparatus according to the present invention will be described with reference to FIGS.

<Modeling system 100>
FIG. 1 is a system diagram showing a configuration example of a modeling system 100 including a three-dimensional modeling apparatus 10 according to an embodiment of the present invention. This modeling system 100 includes a three-dimensional modeling apparatus 10, a modeling requester terminal 20 and an administrator terminal 21 connected to the three-dimensional modeling apparatus 10 via a LAN (Local Area Network) 1, and a mail server on the Internet 23. 24 and the router 22. The router 22 is a relay device that relays data transmission between the LAN 1 and the Internet 23. The mail server 24 transmits and receives electronic mail.

  The three-dimensional modeling apparatus 10 is an ink-jet layered modeling machine, and uses a predetermined UV curable resin as a modeling material, and sequentially forms a modeling material layer made of a modeling material on a modeling stage to be described later. A three-dimensional model is formed. The modeling requester terminal 20 is a PC (personal computer) in which an application program for three-dimensional modeling is installed, and functions as a modeling data creation device that generates modeling data for producing a desired three-dimensional modeled object.

  The modeling data includes shape information indicating the three-dimensional shape of the modeling target and modeling conditions other than the shape information. The modeling data is created based on, for example, CAD data, and is processed into data for each layer as layered data used in the three-dimensional modeling apparatus 10 as necessary. However, data processing in units of layers may be performed on the 3D modeling apparatus 10 side. The modeling conditions other than the shape information are modeling information that can be specified regardless of the modeling target, and modeling parameters such as the type of modeling material, the thickness of the modeling material layer, and the scanning speed, and the modeling stage. It consists of the arrangement information which shows the arrangement mode of the modeling object above.

  The modeling data created in the modeling requester terminal 20 is transmitted to the three-dimensional modeling apparatus 10. In the three-dimensional modeling apparatus 10, a plurality of modeling data received from the modeling requester terminal 20 via the LAN 1 is managed as a modeling job. That is, the modeling job includes modeling data and attribute information held in association with the modeling data. This attribute information includes modeling data identification information, modeling data transmission / reception date and time, modeling requester identification information, and the like. The modeling requester terminal 20 is a terminal device used by a requester of such modeling processing, and the administrator terminal 21 is a terminal device used by an administrator who manages the three-dimensional modeling apparatus 10.

  The three-dimensional modeling apparatus 10 includes a reservation modeling function for performing a modeling process by specifying an execution time in advance, and by specifying in advance a modeling job for a reservation modeling target and an end time of the reserved modeling, The modeling process for forming can be started automatically.

  The time required for modeling can be calculated from the shape information of the modeled object, the modeling parameters, and the arrangement information of the modeled object. Therefore, if designation of either the scheduled start time or the planned end time of modeling is received from the operator, both the planned start time and the planned end time of modeling can be determined based on the calculated modeling time. The modeling time may be calculated by the 3D modeling apparatus 10 based on the modeling data received from the modeling requester terminal 20, but is calculated in advance by the modeling requester terminal 20 and is combined with the modeling data. You may transmit to the three-dimensional modeling apparatus 10. Moreover, designation | designated of the start time of modeling or the scheduled end time may be designated using the operation part mentioned later of the three-dimensional modeling apparatus 10, or it designates beforehand with the modeling requester terminal 20, and combines with modeling data. It is good also as a structure transmitted to the three-dimensional modeling apparatus 10. FIG.

  In addition, the three-dimensional modeling apparatus 10 urges replacement of the tank that stores the modeling material before use, or transmits a notification mail for notifying that the modeling process is finished. The notification mail is transmitted via the mail server 24 to the transmission destination specified by the mail address. The modeling requester terminal 20 can be designated as the transmission destination of the notification mail. The transmission destination address indicating the transmission destination of the notification mail is, for example, specified in the modeling requester terminal 20 and transmitted to the three-dimensional modeling apparatus 10 together with the modeling data. Further, the administrator terminal 21 can be designated as a transmission destination common to a plurality of modeling jobs.

  In addition, the three-dimensional modeling apparatus 10 includes a security lock function that restricts remodeling and restricts unlocking of the upper door 11 based on a password specified by the modeling requester when creating modeling data. The password specified by the modeling client at the modeling client terminal 20 is transmitted to the three-dimensional modeling apparatus 10 together with the modeling data. This password is stored in association with the modeling data, and is necessary for unlocking the upper door 11 after the modeling of the modeled object is completed by the modeling process based on the modeling data. Since the password is stored in association with each modeling data, a different password can be set for each modeling data. Accordingly, when a single three-dimensional modeling apparatus 10 is shared and used by a plurality of operators, it is possible to set individual passwords for modeling data for which each operator gives a modeling instruction.

  The setting of the password is not limited to the configuration in which the modeling requester terminal 20 transmits the data to the 3D modeling apparatus 10 in association with each modeling data, but the modeling is scheduled using the operation display unit 12 of the 3D modeling apparatus 10. It is good also as a structure which selects one from modeling data and sets a password with respect to the selected modeling data.

  The three-dimensional modeling apparatus 10 is provided with an upper door 11, an operation display unit 12, and a front door 13. The upper door 11 is an openable / closable shut-off door for restricting access to a work space 110 to be described later from outside and preventing a molding material from scattering into the external space, and lifts the front side. Thus, the work space 110 can be accessed. The operation display unit 12 includes, for example, a touch panel, accepts an operation by a user, and displays an operation state and various error messages on the screen. The front door 13 is an open / close door for the cartridge housing portion 130 that houses a modeling material cartridge and the like, and the cartridge housing portion 130 described later can be accessed by moving the upper portion to the near side.

<3D modeling apparatus 10>
FIG. 2 is a perspective view showing an example of the configuration of the three-dimensional modeling apparatus 10 of FIG. 1, and shows the inside of the work space 110 and the cartridge housing part 130. In the figure, the three-dimensional modeling apparatus 10 in a state where the upper door 11 and the front door 13 are opened is shown.

  The work space 110 is a space for two-dimensionally scanning the head unit 111 that discharges the modeling material and depositing the discharged modeling material on the modeling stage 112, and on the top plate 116 as a work table. Is formed. The top plate 116 is provided with an x-scanning engagement groove 113, a purge tray 114, and a light receiving hole 115.

  The modeling stage 112 has a horizontal and flat modeling surface, is a movable stage for depositing a modeling material on the modeling surface to form a three-dimensional modeled object, and can be moved in the vertical direction. The modeling stage 112 is disposed at the center of the top plate 116. The head unit 111 is a movable unit that is two-dimensionally scanned in parallel with the modeling stage 112 by a driving device (not shown).

  In this three-dimensional modeling apparatus 10, if the vertical direction is the z direction and the horizontal directions orthogonal to each other are the xy directions, the x direction which is the left and right direction when viewed from the user is the main scanning direction, and the front and rear direction when viewed from the user. Two-dimensional scanning is performed with the y direction as the sub-scanning direction. The modeling material is discharged during scanning in the main scanning direction. The head unit 111 can be moved to an arbitrary position in the rectangular area by the two-dimensional scanning, and the rectangular area becomes a movable area.

  Further, in other words, the y direction here is an arrangement direction in which a plurality of orifices (discharge ports 2 described later) included in each of the model material nozzle unit 32 and the support material nozzle unit 31 described later are arranged, The x direction is a direction orthogonal to the y direction in the horizontal plane.

  The x-scanning engagement groove 113 is a groove for engaging the head unit 111 with a driving device that scans in the main scanning direction, and is formed in the front end portion and the rear end portion of the top plate 116. The purge tray 114 is a modeling material storage unit that temporarily stores the modeling material discharged from the head unit 111. The purge tray 114 is disposed in the movable area of the head unit 111 and on the left side of the modeling stage 112.

  In the three-dimensional modeling apparatus 10, a purge process is periodically performed during the modeling process. The purge process moves the head unit 111 from the modeling stage 112 as a modeling area onto the purge tray 114 and forcibly discharges the modeling material from the modeling material nozzles 312 and 322 mounted on the head unit 111. The discharge port 2 for discharging the modeling material and the residue remaining in the modeling material supply path for supplying the modeling material to the discharge port 2 are removed, and the surface of the modeling material nozzles 312 and 322 is not illustrated. This is a process of cleaning the surface of the modeling material nozzle by bringing a rubber member into contact therewith and sliding it. Here, the modeling material discharged from the nozzle is collected in a waste liquid tank 13H described later.

  The light receiving hole 115 is a light receiving window for an illuminance sensor that detects the illuminance of UV light for curing the modeling material, and includes a through hole formed in the top plate 116. The light receiving hole 115 is disposed on the opposite side of the purge tray 114 with the modeling stage 112 interposed therebetween. As a specific operation, the lamp unit 35 provided on the operation display unit 12 is pressed down and the head unit 111 is driven to automatically position the lamp unit 35 directly above the light receiving hole 115, The unit 35 is turned on, and the illuminance of the UV light is detected by an illuminance sensor provided inside the light receiving hole 115.

  In the cartridge accommodating portion 130, two model material cartridges 13M, two support material cartridges 13S, and a waste liquid tank 13H are accommodated. The modeling material discharged from the head unit 111 includes a model material M constituting the modeling object itself, and a support material S that supports an overhang portion or an isolated portion of the modeling object and is finally removed. is there.

  In the present embodiment, the support material S includes a material having higher solubility in water for removing the support material S than the model material M. Here, the overhang portion means a portion in which the modeled object protrudes in the xy plane from the modeled part positioned below in the z direction (that is, the height direction), in other words, has an overhang shape. The modeled object is a modeled object having a part (overhang part) in which a slice of a new model material is molded on the upper surface of a part where a slice of the model material that has already been formed does not exist.

  The model material cartridge 13M is a detachable modeling material tank that accommodates the model material M before use. The support material cartridge 13S is a detachable modeling material tank that accommodates the support material S before use. That is, the modeling material before being discharged from the modeling material nozzles 312 and 322 of the head unit 111 is accommodated in the model material cartridge 13M and the support material cartridge 13S.

  The waste liquid tank 13H is a storage container for accumulating waste liquid collected from the purge tray 114 and a roller drain tray (not shown) in the head unit 111 described later, and can be removed and replaced. The waste liquid tank 13H is provided with a sensor for detecting the liquid level, a weight sensor for detecting the weight of the waste liquid tank 13H itself, etc., so that the level of the waste liquid in the waste liquid tank 13H is detected and notified to the operator. It has a function to do.

  In the cartridge housing portion 130, two model material cartridges 13M and two support material cartridges 13S can be accommodated. By alternately using both cartridges, the modeling process can be performed without interruption. The replaced cartridge can be replaced.

<Head unit 111>
FIG. 3 is a diagram illustrating an example of a schematic configuration of the head unit 111 in FIG. 2. FIG. 3A illustrates the head unit 111 viewed from the y direction (the sub scanning direction of the head unit 111). (B) shows the state seen from the x direction (main scanning direction of the head unit 111), and (c) shows the state seen from the z direction.

  The head unit 111 includes a support material nozzle unit 31, a model material nozzle unit 32, a y scanning holder unit 33, a roller unit 34, and a lamp unit 35. These units 31 to 35 are integrally held. ing. The units 31 to 35 are arranged in the x direction in this order.

  The basic concept of the arrangement of the support material nozzle unit 31, the model material nozzle unit 32, the roller unit 34, and the lamp unit 35 along the x-axis direction is as follows. Considering the forward direction of the main scanning direction of the head unit 111 as a base, one of the support material nozzle unit 31 and the model material nozzle unit 32 may be positioned in front of the other. In contrast to such a nozzle unit layout, when the roller unit 34 and the lamp unit 35 are desired to perform the roller action in the forward path, the support material nozzle unit 31 and the model material nozzle unit 32 are arranged in the forward travel direction. When the roller unit 34 and the lamp unit 35 are arranged in this order in the rear, and the roller function is to be performed on the return path, the roller unit 34 is positioned rearward in the traveling direction of the support material nozzle unit 31 and the model material nozzle unit 32 in the return path. The lamp units 35 may be arranged in this order.

  Moreover, in the said Example, after discharging resin for becoming a new uppermost layer from the head unit 111, with respect to the uncured uppermost resin layer in the middle of modeling, the excess resin by the roller unit 34 After scraping, a method of irradiating UV light for curing at least the uppermost resin layer by the lamp unit 35 was adopted.

  However, in addition to this, after discharging the resin for forming a new uppermost layer from the head unit 111, the uppermost layer including the surplus resin layer is once irradiated with light by the lamp unit 35, and then the molding is in progress. There is also a method in which the upper resin layer in the uncured state is scraped off with the roller unit 34 and then irradiated with UV light for curing at least the uppermost resin layer by the lamp unit 35 again. is there.

  In this case, the lamp unit 35 includes a pair of lamp units 35 in the head unit 111 in the front-rear direction sandwiching the support material nozzle unit 31 and the model material nozzle unit 32 in the x direction, that is, the main scanning direction of the head unit 111. By providing, irradiation as described above can be performed twice. In this case, the first irradiation and the second irradiation are combined to finally achieve the desired degree of curing of the resin, so the resin after the first irradiation is not in a cured state, For the subsequent scraping operation by the roller unit 34, the fluid unit is in a semi-cured state. For this reason, also in this case, the state of the uppermost layer before scraping off the resin by the roller unit 34 is expressed as an uncured or flowable state.

  The model material nozzle unit 32 is a nozzle unit for discharging the model material M supplied from the model material cartridge 13M. The model material nozzle unit 32 temporarily stores the model material M and the modeling material 112 with respect to the modeling stage 112. A plurality of ejection ports 2 for ejecting M are formed of modeling material nozzles 322 arranged in the y direction.

  The support material nozzle unit 31 is a nozzle unit for discharging the support material S supplied from the support material cartridge 13 </ b> S, a reserve tank 311 for temporarily storing the support material S, and a plurality of discharges for the support material S. Are formed of molding material nozzles 312 arranged in the y direction.

  The model material M and the support material S become droplets from the discharge port 2 by using the vibration of the piezoelectric element provided in the nozzle unit for each discharge port 2 provided in each of the modeling material nozzles 322 and 312. It is injected. The discharge ports 2 are arranged on a straight line in the y direction at a constant pitch.

  The head unit 111 scans in the x direction while discharging the modeling material from the modeling material nozzles 312 and 322, thereby corresponding to the arrangement length of all the discharge ports 2 provided in each of the modeling material nozzles 312 and 322. A modeling material layer having a width can be formed on the modeling stage 112 by one main scanning.

  The y-scanning holder unit 33 is supported by a bridge body connecting between the x-scanning engaging grooves 113 in order to scan the head unit 111 in the sub-scanning direction. The y-scanning holder unit 33 is supported by the bridge body, and an axis extending in the y direction (sub-scanning direction of the head unit 111) provided in the bridge body by a drive unit (not shown) provided on the bridge body. The head unit 111 is driven along the head. As a driving method of the head unit 111 in the y direction (sub scanning direction of the head unit 111), a driving unit may be built in the head unit 111 itself and moved on the above-described axis.

  From the outermost surface of the modeling material layer formed on the modeling stage 112 by the film thickness adjusting roller 341, a driving unit (not shown) that rotates the roller 341, and the film thickness adjusting roller 341. It consists of a roller drain tray (not shown) for temporarily storing the scraped modeling material.

  The film thickness adjusting roller 341 adjusts the thickness of the modeling material film discharged and deposited on the modeling stage 112. More specifically, the film thickness adjusting roller 341 has a predetermined thickness before the lamp unit 35 cures a part of the outermost surface layer formed by the modeling material discharged from the modeling material nozzles 312 and 322. The thickness of the outermost surface layer is optimized by scraping off the thickness. The film thickness adjusting roller 341 is also a roller for flattening the surface of the modeling material film, and rotates about the rotation axis in the y direction. More specifically, the film thickness adjusting roller 341 rotates in the forward direction with respect to the traveling direction of the head unit 111 when the film thickness adjusting roller 341 acts. The modeling material scraped off by the film thickness adjusting roller 341 and accommodated in the roller drain tray is sent to the waste liquid tank 13H as a drainage made of the used modeling material.

  The lamp unit 35 includes a UV lamp 351 for irradiating the modeling material film discharged and deposited on the modeling stage 112 with UV light, and an irradiation area wider than the arrangement length of the discharge ports 2 is formed on the modeling stage 112. Can be formed.

  When the layout of the lamp unit 35 shown in FIG. 3 is adopted, the lamp unit 35 precedes the modeling material nozzles 312 and 322 in the so-called main scanning forward path in which the head unit 111 is moved from the left to the right in the figure. Therefore, UV light is not irradiated on the surface of the molded object discharged on the outward path. Therefore, in order to facilitate lighting control, the lamp may be constantly lit. Actual UV light irradiation is performed on the outermost surface after the film thickness adjusting roller 341 optimizes the thickness of the outermost surface of the modeled object on the return path.

  The lamp unit 35 here is not limited to a UV light irradiation lamp as long as it is a light source that irradiates UV light, and includes an LED light source that irradiates UV light. That is, it is a resin irradiating means for irradiating light of a specific wavelength necessary for resin curing such as UV light. Furthermore, if a thermoplastic resin that cures at a predetermined temperature is adopted as the modeling resin instead of the photo-curing resin, the resin curing means may be used as a resin curing means instead of the lamp unit 35 of the present invention. A heating means may be employed or may not be necessary in some cases.

<Modeling process>
FIG. 4 is an explanatory view schematically showing an example of an operation at the time of modeling in the three-dimensional modeling apparatus 10 of FIG. 2, and shows how a three-dimensional model is formed on the modeling stage 112. In the drawing, a state of a cut surface when the head unit 111 and the modeling stage 112 in the three-dimensional modeling apparatus 10 that is modeling a three-dimensional model is cut along a vertical plane parallel to the zx plane is shown.

  The model material M and the support material S are discharged as droplets 3 from the head unit 111 to the modeling stage 112 while scanning in the main scanning direction (x direction). The modeling material layer made of these modeling materials discharged and deposited on the modeling stage 112 during the main scanning forward path is adjusted in thickness by the film thickness adjusting roller 341 in the main scanning return path, and the UV lamp 351 emits UV light. Hardens upon irradiation. In the above description, the ejection of the model material M and the support material S may be performed in the forward direction of the main scanning and also in the return path of the main scanning of the head unit 111. Further, the ejection of the model material M and the support material S may be performed only in the main scanning return path of the head unit 111.

  The model material M and the support material S in the present embodiment are both UV curable resins, and are cured by being irradiated with UV light from the same UV lamp 351. As the resin that can be used for the three-dimensional modeling apparatus 10, a thermosetting resin that is cured by applying heat or a thermoplastic resin that is cured by natural cooling can be used in addition to the photocurable resin. .

  A band-like region having a constant width corresponding to the length (head width) in the y direction of the head unit 111 is called a field. When the formation of the modeling material layer is completed for a certain field, the head unit 111 is moved in the sub-scanning direction ( In the y direction, formation of the modeling material layer for the adjacent field is started. The degree to which the head unit 111 is moved in the sub-scanning direction (y direction) is determined by the position at which the modeled object to be formed on the modeling stage 112 is arranged, and the determination is determined by the modeling client terminal. This is performed based on the requester's input at 20.

  The head unit 111 is supported by a gate-type bridge that spans between the x-scanning engagement grooves 113 in the y-direction, and is scanned along the pair of x-scanning engagement grooves 113 in the main scanning direction. In the present embodiment, the head unit 111 is supported by the gate-shaped bridge body, and the head unit 111 is moved in the main scanning direction along the pair of x scanning engaging grooves 113. The number of the engagement grooves 113 may be one, and the head unit 111 may be moved in the main scanning direction with the cantilever supported.

  Since the width in the y direction that can be modeled by the model material nozzle unit 32 and the support material nozzle unit 31 disposed in the head unit 111 is shorter than the modeling area on the modeling stage 112, the head unit 111 is moved in the main scanning direction. When the modeling for one field is completed by reciprocating, the adjacent unit field is modeled by moving the head unit 111 in the sub-scanning direction (y direction). When the three-dimensional object set by the user fits in one field, the head unit 111 is not moved in the sub-scanning direction. If the width in the y direction that can be modeled by the head unit 111 is the same or larger than the width in the y direction of the modeling area on the modeling stage 112, the head unit 111 needs to be modeled while moving in the sub-scanning direction. No moving mechanism in the sub-scanning direction is required.

  On the modeling stage 112, a modeling material layer is formed for each field by the main scanning and the sub scanning of the head unit 111 described above, and one resin layer constituting the three-dimensional modeled object is formed. This resin layer is called a slice layer, and when the formation of the slice layer is completed at a position in a certain z direction, the modeling stage 112 is moved downward (z direction) by a distance corresponding to the thickness of the slice layer, Formation of the next slice layer is started.

  In this three-dimensional modeling apparatus 10, the upper surface of the removable portable plate 41 is the modeling stage 112, and moves in the z direction from the portable plate 41 and the plate mounting base 42 on which the portable plate 41 is placed. A possible z moving unit 40 is configured. The position of the z moving unit 40 in the z direction is adjusted by the z driving device 43. The z driving device 43 is vertical driving means that changes the relative position in the height direction between the head unit 111 and the modeling stage 112. The portable plate 41 is made of a rectangular metal plate, and can be removed from the plate mounting base 42 with the three-dimensional object being placed when all the modeling instructed from the modeling client terminal 20 is completed. it can. The plate mounting base 42 is provided with a fixing mechanism (not shown) for fixing the portable plate 41.

  The three-dimensional structure is constituted by the model material M, and the support material S supports an overhang portion or an isolated portion of the three-dimensional structure and is finally removed by a predetermined method. For example, if a resin that is insoluble or hardly soluble in water is used as the model material M and an easily soluble resin is used as the support material S, the modeled object formed on the portable plate 41 is taken out and immersed in water. Thus, only the modeling material layer made of the support material S can be easily removed. Needless to say, the support material S may be removed from the model material M as a conventional method by removing the support material S from the model material M as a modeled object.

  In this example, a desired three-dimensional structure is formed by stacking and forming a slice layer made of the model material M and the support material S on the base layer SS formed on the portable plate 41. The base layer SS is made of a support material S that absorbs the inclination of the portable plate 41 and the surface irregularities and makes it easy to peel off the modeled object. Furthermore, as long as the foundation layer SS can absorb the inclination of the portable plate 41 and the unevenness of the surface, a hollow structure such as a lattice shape is adopted in addition to the solid structure in the modeling conditions at the modeling client terminal 20. Thus, the amount of material used can be reduced.

<Main scan>
FIG. 5 is an explanatory diagram schematically showing an example of an operation during modeling in the three-dimensional modeling apparatus 10 of FIG. 2, and (a) in the drawing shows the state of the main scanning forward path in the x direction. , (B) shows the state of the main scanning return path. In the main scanning forward path, the position of the modeling stage 112 is fixed at a position separated from the head unit 111 in the z direction, and the model material M and the support material S are discharged from the modeling material nozzles 312 and 322. A modeling material layer 4 made of these modeling materials is formed on the modeling stage 112.

  It should be noted that the distance between the head unit 111 and the modeling stage 112 disclosed in FIG. 5A is clearly different from the distance between the head unit 111 and the modeling stage 112 disclosed in FIG. This is for the purpose of explaining the contents of the operation in an easy-to-understand manner. Actually, the distance between the head unit 111 and the modeling stage 112 in the state of FIG. 5A is 2 mm or less. The distance in 5 (b) is such that the modeling stage 112 is moved a distance of 1 mm or less from the state of FIG. 5 (a) so as to approach the head unit 111 in the z direction.

  The thickness of the modeling material layer 4 can be determined by the user from the viewpoint of modeling accuracy and modeling speed. That is, if the user chooses to give priority to modeling accuracy, the thickness of the modeling material layer 4 is set to the minimum thickness that can be set or the thickness in the vicinity thereof, and if the user chooses to give priority to the modeling speed, What is necessary is just to set to the thickness which maintained the modeling precision. Such a selection can be selected and set as modeling conditions other than the shape information in the modeling client terminal 20.

  The scanning of the main scanning return path is performed in a state where the modeling stage 112 is moved upward to a position where the film thickness adjusting roller 341 contacts the modeling material layer 4. In this main scanning return path, the modeling material M and the support material S can be discharged from the modeling material nozzles 312 and 322 in addition to the discharge of the modeling material in the main scanning forward path, and are discharged and accumulated in the main scanning forward path and the return path. The upper layer portion of the formed modeling material layer 4 is scraped off by the film thickness adjusting roller 341.

  There is an individual difference in the discharge amount of the modeling material from each nozzle arranged in the modeling material nozzles 312 and 322, and the modeling material nozzle is obtained so that the modeling material layer 4 having a preset thickness can be accurately obtained. Since it is difficult to control the discharge amount of the modeling material from 312 and 322, at least a unit of forming each modeling layer, the modeling material nozzles 312 and 322 discharge a modeling material having a thickness greater than the set thickness, By collecting excess modeling material by the film thickness adjusting roller 341, the modeling material layer 4 having a preset thickness can be maintained, and the modeling material layer 4 having a uniform thickness can be stacked. However, the timing for bringing the film thickness adjusting roller 341 into contact with the outermost surface of the modeling layer at that time does not need to be performed on the outermost surface in each slice layer data unit as modeling data, and various objectives of modeling For example, it can be performed at a necessary timing from the viewpoint of compatibility between modeling accuracy and modeling speed.

  The film thickness adjusting roller 341 rotates in the same direction at a constant rotational speed regardless of the forward and backward paths of main scanning. The UV lamp 351 is lit at a predetermined light intensity corresponding to the type of modeling material, the thickness of the modeling material layer 4, and the scanning speed in the x direction, and mainly the modeling material layer after film thickness adjustment by the film thickness adjustment roller 341. 4 is cured by irradiation with UV light.

<Fields Fd1 to Fd4 on the modeling stage 112>
FIG. 6 is an explanatory view schematically showing how four passes (scanning in the x direction) are performed on each of the fields Fd1 to Fd4 formed on the modeling stage 112. FIG. The head unit 111 can be moved to an arbitrary position in the modeling area by main scanning in the x direction and sub-scanning in the y direction with respect to the modeling area formed of a rectangle on the modeling stage 112.

  In the inkjet layered manufacturing method, scanning in the x direction is referred to as a pass, and a band-like region having a constant width corresponding to the modeling material nozzles 312 and 322 is referred to as a field Fd. The modeling material layer in one field Fd is formed by a plurality of passes. In this example, in order to improve the resolution in the y direction up to four times the resolution defined by the arrangement pitch of the ejection ports 2 in the modeling material nozzles 312 and 322, four passes in which the positions in the y direction are different from each other. Thus, a modeling material layer in the field Fd is formed.

  When the formation of the modeling material layer is completed for the field Fd1, the head unit moves in the y direction by one field, and the formation of the modeling material layer for the field Fd2 is started. If formation of a modeling material layer is completed about each field Fd1-Fd4 in a modeling area, one slice will be completed.

  The thickness of the modeling material layer for one slice is defined by the scanning speed in the x direction of the modeling material nozzles 312 and 322 and the ejection amount of the modeling material per unit time. Therefore, the time required to form the modeling material layer for one field and the usage amount of the modeling material can be estimated based on modeling data including modeling parameters such as the thickness of the modeling material layer and the scanning speed.

  FIG. 7 is a diagram illustrating an example of an arrangement mode of the modeling object. (A) in the figure shows a case where the same model is placed in one field Fd1 (placement mode A1) and a case where the same model is placed across two fields Fd1 and Fd2 (placement mode A2). Has been.

  Since the modeling process is performed for each field Fd, if the modeling object has the same shape and size, the arrangement to fit within one field Fd extends over a plurality of fields Fd. In comparison, the time required to laminate the modeling object is short. That is, the modeling time is shorter in the arrangement mode A1 than in the arrangement mode A2.

  In (b) in the figure, there are a case where the same shaped object is arranged so that the height in the z direction is low (arrangement mode A3) and a case where the same shaped object is arranged so as to be high (arrangement mode A4). It is shown. Since the modeling process is performed by stacking slices, if the modeling object has the same shape and size, it is arranged so that the one arranged so that the height in the z direction becomes low becomes high. Compared to the above, the time required to laminate the modeling object is short. That is, the modeling time is shorter in the arrangement mode A3 than in the arrangement mode A4.

  When the modeling requester terminal 20 creates modeling data, the time required for the modeling process and the amount of modeling material used in the modeling process are estimated. This estimated modeling time consists of the total modeling time that is the sum of the time required to model each slice layer and the time required for the purge process, and is included in the modeling data. It is calculated by referring to the shape information, arrangement, posture, scanning speed, and thickness of each slice layer.

  The estimated usage amount of the modeling material includes an estimated usage amount of the model material M and an estimated usage amount of the support material S, and each is calculated based on the modeling data. In addition, the total usage amount that is the sum of the usage amount of the model material M and the support material S necessary for modeling each slice layer and the estimated usage amount in the purge process is the modeling data. Is calculated based on

<Modeling client terminal 20>
FIG. 8 is a block diagram illustrating a configuration example of the modeling requester terminal 20 of FIG. The modeling requester terminal 20 includes a CAD data storage unit 201, an operation unit 202, a modeling data generation unit 203, a modeling estimation unit 204, a transmission destination setting unit 205, a modeling setting storage unit 206, a network communication unit 207, and an email acquisition unit 208. , A notification mail storage unit 209, a display unit 210, and an authentication code setting unit 211.

  The CAD data storage unit 201 holds CAD data of the modeling object. The CAD data is composed of three-dimensional shape data of a three-dimensional structure created using CAD (Computer Aided Design) software. When the operation unit 202 receives an operation by the modeling client, the operation unit 202 outputs an operation signal corresponding to the operation content to the modeling data generation unit 203, the transmission destination setting unit 205, and the mail acquisition unit 208.

  The modeling data generation unit 203 converts CAD data, generates modeling data 221 including shape information, arrangement information, and modeling parameters of the modeling target, and stores the modeling data 221 in the modeling setting storage unit 206. Specifically, the CAD data is first converted into, for example, STL (Stereo Lithography Data) data, and further, slice data obtained by slicing the STL data into a plurality of thin slices is generated. Then, transmission is performed to the three-dimensional modeling apparatus 10 in a batch or in units of slice layers. At this time, corresponding to the determination of the posture on the modeling stage 112 of model data (actually, STL data after conversion) designed by three-dimensional CAD or the like, the model formed by the model material M in this posture is supported. The position where the support material S is provided is set for the necessary space or location, and slice data corresponding to each layer is formed based on these data.

  The modeling data 221 is generated based on, for example, a creation instruction from the modeling client, and the arrangement information and modeling parameters are specified by the modeling client. The arrangement information is an arrangement mode of the modeling object on the modeling stage 112. When one modeling object is produced, the position of the modeling object on the modeling stage 112 and the posture of the modeling object are specified by the modeling client. . Moreover, when producing a some modeling object by one modeling process, the position and attitude | position of each modeling object are designated as an arrangement | positioning aspect.

  Based on the modeling data 221, the modeling estimation unit 204 calculates an estimated modeling time 222 required for the modeling process for forming the modeling object and an estimated usage amount 223 of the modeling material in the modeling process, and a modeling setting storage unit It stores in 206. In addition, it is good also as a structure which provides the modeling estimation part 204 in the three-dimensional modeling apparatus 10, and calculates the estimated modeling time and the estimated usage-amount with the three-dimensional modeling apparatus 10 based on the modeling data 221 received from the modeling requester terminal 20.

  The transmission destination setting unit 205 sets a mail address indicating the transmission destination of the notification mail, and stores it in the modeling setting storage unit 206 as the transmission destination address 224. The transmission destination address 224 is designated by, for example, a modeling requester, and a plurality of mail addresses can be designated.

  The authentication code setting unit 211 sets an authentication code in association with each modeling data 221 and stores it in the modeling setting storage unit 206. The authentication code is identification information for user authentication, and can be set individually for each modeling data 221. Here, a password 225 consisting of an array of characters and symbols is set as an authentication code, and is held in association with the modeling data 221.

  The modeling data 221, the estimated modeling time 222, the estimated usage amount 223, the transmission destination address 224, and the password 225 are held in association with each other as modeling setting data. The network communication unit 207 transmits this modeling setting data to the three-dimensional modeling apparatus 10 via the LAN 1.

  The mail acquisition unit 208 transmits a notification mail download request to the mail server 24 via the network communication unit 207 and the LAN 1, and acquires the notification mail from the three-dimensional modeling apparatus 10. The notification mail storage unit 209 holds the acquired notification mail. The display unit 210 displays the acquired notification mail on the screen.

  FIG. 9 is a block diagram showing an example of a functional configuration in the three-dimensional modeling apparatus 10 of FIG. The three-dimensional modeling apparatus 10 includes an operation unit 121, a display unit 122, a network communication unit 400, a modeling job storage unit 401, a modeling processing unit 402, a scheduled start time setting unit 403, a scheduled end time calculation unit 404, and a remaining amount detection unit. 405, a tank replacement determination unit 406, a recommended time calculation unit 407, and a notification mail transmission unit 408.

  The network communication unit 400 stores the modeling setting data received from the modeling requester terminal 20 via the LAN 1 in the modeling job storage unit 401, and transmits a notification mail to the modeling requester terminal 20 and the administrator terminal 21 via the LAN 1. To do. The modeling job storage unit 401 holds a plurality of modeling jobs acquired from the modeling requester terminal 20.

  A modeling job consists of modeling data and its attribute information, and is held in association with identification information of the modeling job. The attribute information of the modeling data includes an estimated modeling time, an estimated usage amount, a transmission destination address and a password (authentication code) acquired from the modeling requester terminal 20, and a reservation time described later.

  The modeling processing unit 402 performs modeling processing for forming a modeling object on the modeling stage 112 based on the modeling data in the modeling job storage unit 401. This modeling process is started based on, for example, a modeling instruction by a modeling operator, and xy drive control of the head unit 111, z drive control of the modeling stage 112, and drive control of the piezoelectric elements in the modeling material nozzles 312 and 322 are performed. Is called.

  If the operator of the 3D modeling apparatus 10 is called a modeling operator, the operation unit 121 outputs an operation signal corresponding to the operation content to the scheduled start time setting unit 403 when an operation by the modeling operator is accepted. To do. The scheduled start time setting unit 403 sets a scheduled start time for reservation modeling, and outputs the scheduled modeling time to the scheduled end time calculation unit 404. Scheduled modeling is a modeling process that is performed by specifying the execution time in advance, and the scheduled modeling start scheduled time is based on, for example, an operation input performed by the modeling operator specifying a modeling job to be reserved for modeling, Is set.

  The scheduled end time calculation unit 404 ends the reserved modeling based on the estimated modeling time of the modeling job to be reserved modeling in the modeling job storage unit 401 and the scheduled start time set by the scheduled start time setting unit 403. Find the scheduled end time. This scheduled end time is obtained as a time after the cumulative modeling time from the scheduled start time. The scheduled start time and the scheduled end time of reserved modeling are stored in the modeling job storage unit 401 as reserved times.

  In this embodiment, it is configured to calculate the modeling end scheduled time by accepting the designation of the modeling start scheduled time, but it may be configured to calculate the modeling start scheduled time by receiving the designation of the modeling end scheduled time. Needless to say, it is good. In addition, the designation of time here is not limited to the designation of a specific scheduled start time, but also includes designation of how many hours later the modeling starts.

  Further, the scheduled start time setting unit 403 and the scheduled end time calculation unit 404 are not necessarily provided in the three-dimensional modeling apparatus 10 and may be provided on the modeling requester terminal 20. Specifically, one of the scheduled start time and the scheduled end time is set at the modeling requester terminal 20, the other scheduled time is calculated, and transmitted to the three-dimensional modeling apparatus 10 together with the modeling data. You can also Alternatively, either the scheduled start time or the scheduled end time is set on the modeling requester terminal 20 and the other scheduled time is calculated by the three-dimensional modeling apparatus 10.

  The modeling processing unit 402 automatically starts modeling processing based on modeling data when the start time arrives for a modeling job for which a reserved time is specified.

  The remaining amount detection unit 405 detects the remaining amount of the modeling material in the modeling material tank, and outputs the detection result to the tank replacement determination unit 406 and the recommended time calculation unit 407. Specifically, the remaining amount of the model material M in each model material cartridge 13M and the remaining amount of the support material S in each support material cartridge 13S are detected. For detecting these remaining amounts, for example, a method of measuring the weight of the model material cartridge 13M or the support material cartridge 13S using a piezoelectric element and subtracting the weight of the cartridge itself is used.

  The tank replacement determination unit 406 determines whether or not the modeling material tank needs to be replaced during the execution of the modeling process based on the remaining amount detected by the remaining amount detection unit 405, and outputs the determination result to the display unit 122. . Whether the tank needs to be replaced is determined for the model material M and the support material S by comparing the current remaining amount of the modeling material with the cumulative usage amount of the modeling material in the modeling process.

  The display unit 122 displays the determination result by the tank replacement determination unit 406 on the screen at least before the modeling process is started. For example, the determination result of the tank replacement is displayed when the modeling operator specifies the end time of the reserved modeling.

  The recommended time calculation unit 407 obtains a recommended time for tank replacement based on the remaining amount of the modeling material detected by the remaining amount detection unit 405 and the estimated usage amount stored in the modeling job storage unit 401. The recommended tank replacement time is a time at which replacement of the modeling material tank is recommended during the modeling process, and is calculated for the model material cartridge 13M and the support material cartridge 13S.

  Specifically, for the model material cartridge 13M, a period from when one cartridge becomes empty until the remaining amount of the other cartridge falls below a specified amount is set as a recommended period for cartridge replacement, and the end time of this recommended period Is calculated as the recommended time. For the support material cartridge 13S, the recommended time is calculated in the same manner as for the model material cartridge 13M.

  The display unit 122 starts at least the modeling process with the recommended time calculated by the recommended time calculation unit 407 when either the model material cartridge 13M or the support material cartridge 13S must be replaced during the modeling process. Display before the screen.

  When the recommended time for tank replacement arrives, the notification mail transmission unit 408 generates a notification mail including a message for prompting tank replacement, and transmits the notification mail to the transmission destination specified by the transmission destination address. Further, when the end time of the modeling process arrives, the notification mail transmission unit 408 generates a notification mail including a message for notifying the end of the modeling process, and transmits the notification mail to the transmission destination specified by the transmission destination address. The notification mail is transmitted before the recommended time or the end time. For example, the notification mail is transmitted a predetermined time before the recommended time or the end time.

  The notification email is sent when the recommended time for tank replacement during the modeling process is reached or when the modeling process is completed, at the end of the previous modeling process, at the abnormal end or interruption of the modeling process, It may be transmitted when canceling the reserved modeling process or when the maintenance time of the head unit 111 comes. Such notification e-mail notification timing can be arbitrarily designated for each modeling job.

<Modeling reservation>
FIG. 10 is a diagram illustrating an example of an operation at the time of modeling reservation in the three-dimensional modeling apparatus 10 of FIG. (A) in the drawing shows a modeling setting reception screen 50 displayed on the display unit 122 when a modeling job to be modeled is specified.

  The reception screen 50 includes a reception time 51, an estimated time 52, an estimated usage amount 53 of the support material S, and an estimated usage amount 54 of the model material M in association with the job name of the modeling job designated as a modeling target by the user. It is displayed. In addition, on the reception screen 50, a modeling button 55 and a timer reservation button 56 are arranged.

  The reception time 51 is a time when a modeling job designated as a modeling target by the user is received. In this example, 10:37 on May 16, 2011 is displayed. The estimated time 52 is the cumulative modeling time held in association with the modeling job as modeling job data, and 4 hours and 20 minutes are displayed.

  The estimated usage amount 53 is the cumulative usage amount of the support material S held in association with the modeling job as modeling job data, and 30 g is displayed. The estimated usage amount 54 is the cumulative usage amount of the model material M held in association with the modeling job as modeling job data, and 150 g is displayed.

  Necessity of tank replacement is displayed in the display fields for the estimated usage amounts 53 and 54, respectively. That is, when it is determined that the support material cartridge 13S or the model material cartridge 13M must be replaced during the modeling process, a message indicating that the tank needs to be replaced is displayed. On the other hand, when tank replacement is unnecessary, it is displayed that tank replacement is unnecessary.

  The modeling button 55 is an operation icon for immediately starting the modeling process. The timer reservation button 56 is an operation icon for setting the scheduled start time or the scheduled end time of reservation modeling. By operating the timer reservation button 56, a setting screen 60 is displayed.

  The user can confirm in advance the total modeling time of the modeling job and the total usage amount of the modeling material by using such a reception screen 50. In addition, it is possible to recognize in advance whether or not the cartridges 13M and 13S need to be replaced during the modeling process. Therefore, the user can start the modeling process after replenishing the modeling material by exchanging the modeling material tank estimated to be replaced.

  (B) in the figure shows a reservation modeling setting screen 60 displayed when the timer reservation button 56 in the reception screen 50 is operated. The setting screen 60 displays a time input field 61, an end time 62, recommended cartridge replacement times 63 and 64, and a reservation set button 65 and a cancel button 66.

  The time input field 61 is an input field for designating how many hours after the reception time 51 the modeling process is to be started. By operating the increment button or the decrement button, the time from 0 hour to 99 hours is displayed. Can be specified in units of one hour. The scheduled end time 62 is a time when the modeling process is estimated to end when the modeling process is started based on the time specified in the time input field 61.

  The recommended time 63 is a recommended time for tank replacement when the modeling process is started based on the time specified in the time input field 61, and the support material cartridge 13S must be replaced during the modeling process. Displayed when it is determined. If tank replacement is not required, a message indicating that tank replacement is not required is displayed.

  The recommended time 64 is a recommended time for tank replacement when the modeling process is started based on the time specified in the time input field 61, and the model material cartridge 13M must be replaced during the modeling process. Displayed when it is determined. If tank replacement is not required, a message indicating that tank replacement is not required is displayed.

  The reservation set button 65 is an operation icon for confirming the time specified in the time input field 61 and switching the operation mode to a standby mode for reserved modeling. The cancel button 66 is an operation icon for canceling the time specified in the time input field 61 and returning to the reception screen 50.

<Standby screen 70 and monitor screen 80>
FIG. 11 is a diagram showing an example of the operation in the three-dimensional modeling apparatus 10 of FIG. 9, and (a) in the figure shows a standby screen 70 displayed in the standby mode of the reserved modeling, ) Shows a monitor screen 80 during the modeling process.

  The standby screen 70 displays the scheduled start time and scheduled end time of the reserved modeling job, the recommended time for cartridge replacement, and a cancel button 71. The user confirms the standby mode, the scheduled start time and scheduled end time of the reserved job, and the replacement timing of the cartridges 13M and 13S at an arbitrary timing after the modeling reservation by using such a standby screen 70. be able to.

  During the standby mode, setting a new reservation job or executing a modeling job other than the reservation job is restricted. The cancel button 71 is an operation icon for canceling the standby mode and returning to the normal mode.

  On the monitor screen 80, the remaining amount of the model material M for each model material cartridge 13M, the remaining amount of the support material S for each support material cartridge 13S, the recommended replacement time of the cartridges 13M and 13S, and the cartridge in use are displayed. An icon to be displayed and the amount of modeling material in the waste liquid tank 13H are displayed.

  The remaining amounts of the model material M and the support material S are updated at regular time intervals, and the recommended time for cartridge replacement is corrected based on the actual usage amount of the modeling material. The user can check the remaining amount of the cartridges 13M and 13S, the replacement timing, and whether or not the waste liquid tank 13H needs to be replaced on such a monitor screen.

  In addition, in this Embodiment, although it was set as the structure which designates the start time of modeling or the scheduled end time via the operation display part 12 of the three-dimensional modeling apparatus 10, the start scheduled time or the end scheduled time is a modeling requester terminal. It is good also as a structure designated beforehand by 20 and transmitting to the three-dimensional modeling apparatus 10 together with modeling data.

<Notification Mail Setting Screen 230>
FIG. 12 is a diagram showing an example of the operation at the time of modeling setting in the modeling requester terminal 20 of FIG. 8, and shows a setting screen 230 for notification mail. The setting screen 230 is an input screen for setting a notification mail transmission condition, and includes a mail transmission selection field 231, a transmission destination address input field 232, and notification timing selection fields 233 to 236.

  The selection column 231 is an input column for selecting whether to notify by a notification mail. In the input field 232, an email address indicating the transmission destination of the notification mail is input when notification by notification mail is performed. The selection column 233 is an input column that is selected when notifying the fact by a notification mail when the modeling process is normally completed. The selection column 234 is an input column to be selected when notifying the fact by a notification mail when the modeling process is abnormally interrupted, abnormally terminated, or canceled.

  The selection column 235 is an input column that is selected when notifying the fact by a notification mail when the replacement time of the cartridges 13M and 13S approaches. The selection column 236 is an input column that is selected when a notification mail is notified when the previous modeling job is completed. The modeling requester can set the notification mail transmission destination and notification timing from such a setting screen 230.

  Steps S101 to S107 in FIG. 13 are flowcharts showing an example of an operation at the time of modeling reservation in the three-dimensional modeling apparatus 10 in FIG. First, the scheduled start time setting unit 403 sets a scheduled start time for reservation modeling based on a user operation (step S101). The scheduled end time calculation unit 404 calculates the scheduled finish time of the reserved modeling from the scheduled start time and the cumulative modeling time (step S102).

  Next, the tank replacement determination unit 406 compares the remaining amount of the modeling material with the accumulated usage amount, and determines whether or not the tank replacement is necessary during the execution of the modeling process (step S103). At this time, if the tank replacement is necessary, the recommended time calculation unit 407 calculates the recommended time for tank replacement (step S104). The necessity of tank replacement and the recommended time are displayed in the setting screen 60 (step S105).

  If the reservation set button 65 is operated, the modeling processing unit 402 confirms the setting contents and shifts to the standby mode (steps S106 and S107). On the other hand, when the cancel button 66 is operated, the setting contents are discarded, and this process ends.

  Steps S201 to S211 in FIG. 14 are flowcharts illustrating an example of the operation during the modeling process in the three-dimensional modeling apparatus 10 in FIG. When the scheduled start time of the reservation job arrives during the standby mode, the modeling processing unit 402 reads the corresponding modeling data from the modeling job storage unit 401 and starts the modeling process. During this modeling process, the recommended time for cartridge replacement is corrected based on the actual amount of modeling material used for display on the monitor screen 80. In addition, a notification mail is sent to notify that the cartridge replacement time and the shaping process end time are near.

  That is, the three-dimensional modeling apparatus 10 detects the remaining amount in the cartridges 13M and 13S, and calculates actual usage amounts of the model material M and the support material S based on the detection result (steps S201 and S202). The three-dimensional modeling apparatus 10 corrects the estimated usage amount per unit time based on the calculated usage amount, and corrects the recommended time for cartridge replacement (step S203). If the replacement times of the cartridges 13M and 13S are approaching, the process proceeds to step S205, otherwise the process proceeds to step S207 (step S204).

  Next, when the recommended time for cartridge replacement approaches, the notification mail transmission unit 408 transmits a notification mail (step S205). This notification mail is repeatedly transmitted every predetermined time a predetermined number of times, unless the cartridges 13M and 13S are replaced.

  If the recommended time comes without the cartridges 13M and 13S being replaced, the modeling processing unit 402 interrupts the modeling processing (steps S206, S209, and S210).

  Next, the notification mail transmission unit 408 transmits a notification mail when the cartridges 13M and 13S are exchanged (step S206 or S211), and then the modeling process is scheduled to end (step S207). This notification mail is repeatedly transmitted every predetermined time for a predetermined number of times unless a predetermined stop condition is cleared. The processing procedure from step S201 to step S206 is repeated until the scheduled end time of the modeling process comes.

  In the three-dimensional modeling apparatus 10 of FIG. 9, an example in which the necessity of tank replacement is determined by comparing the current remaining amount of modeling material with the cumulative amount of modeling material used in the reservation job at the time of modeling reservation. However, the present invention does not limit the necessity determination. For example, if there is a modeling job scheduled to be executed before the modeling job to be judged, tank replacement based on the estimated usage amount of modeling material and the current remaining modeling material in the modeling job scheduled to be executed It may be configured to perform necessity determination.

  FIG. 15 is a diagram showing another example of the operation at the time of modeling reservation in the three-dimensional modeling apparatus 10 of FIG. 9, and shows a case where there are reserved jobs J1 and J2 before the determination target job J3. . When there are reservation jobs J1 and J2 scheduled to be executed before the determination target job J3, the tank replacement determination unit 408 compares the cumulative amount of modeling material used in the reservation jobs J1 and J2 with the current remaining amount of modeling material. Thus, the necessity of tank replacement during the period of the modeling process to be determined is determined.

Reservations job J1 is a modeling job of the scheduled start time t ₁ and the scheduled end time t _2, the reservation job J2 is a modeling job of the scheduled start time t ₃ and the scheduled end time t _4, the determination target job J3 is, it is a modeling job of the scheduled start time t ₅ and the expected completion time t _6.

  Whether or not the condition (G1 + G2) <G0 <(G1 + G2 + G3) is satisfied, with the accumulated usage amounts in the reserved jobs J1 and J2 and the determination target job J3 being G1 to G3 and the current remaining amount of the modeling material being G0, respectively. Based on this, it is determined whether or not tank replacement is required during execution of the determination target job J3. With this configuration, when there are scheduled jobs J1 and J2 scheduled to be executed before the determination target job J3, the cumulative amount of modeling material used in the scheduled jobs J1 and J2 scheduled to be executed and the current modeling material Since the necessity of tank replacement is determined from the remaining amount, the accuracy of the necessity determination can be improved.

  Further, in the three-dimensional modeling apparatus 10 of FIG. 9, for the model material cartridge 13M and the support material cartridge 13S, the example in which the end time in the recommended replacement period of the cartridge is displayed as the recommended time has been described. The recommended replacement time is not limited to this. For example, the model material cartridge 13M and the support material cartridge 13S may be configured to display a recommended cartridge replacement period. Further, if there is an overlap period in the recommended period between both cartridges, a configuration in which the overlap period is displayed may be used.

FIG. 16 is a diagram showing an example of a change in the remaining amount when there is an overlap period T3 between the recommended period T1 of the model material cartridge 13M and the recommended period T2 of the support material cartridge 13S. Model material M has one of the cartridge 131 at time _{t 11} is the remaining amount _{m 1} becomes empty at time _{t 12} the remaining amount in the other cartridge 131 has a _{m 2.} Recommended period T1 is a period from the time _{t 11} to time _{t 12.}

On the other hand, support material MSA, one of the cartridge 132 at time _{t 21} is next _{s 1} remaining amount is emptied, at time _{t 22} the remaining amount in the other cartridge 132 has a _{s 2.} Recommended period T2 is a period from the time _{t 21} to time _{t 22.} Overlapping period T3 is a period from time t ₂₁ to time t _12, if within this time period, without interrupting the molding process, both cartridges 13M, can be exchanged simultaneously 13S.

  In addition, in FIG. 10, the example in which the scheduled modeling start scheduled time is specified by inputting time in the time input field 61 has been described, but the present invention does not limit the reserved modeling time specification to this. Absent. For example, the modeling requester designates the scheduled end time of the reserved modeling, and is configured to display the estimated start time for starting the modeling process from the scheduled end time and the estimated modeling time of the modeling process. Also good. By configuring in this way, the modeling process can be automatically started at the time designated by the modeling client, and the scheduled end time of the modeling process can be recognized in advance.

  Next, a security lock function for restricting remodeling and restricting unlocking of the upper door 11 based on a password designated by the modeling requester when creating modeling data will be described with reference to FIGS. 17 to 23. .

  FIG. 17 is a block diagram showing another configuration example of the modeling requester terminal 20 of FIG. The modeling requester terminal 20 includes a CAD data storage unit 201, an operation unit 202, a modeling data generation unit 203, a modeling setting storage unit 206, a network communication unit 207, a display unit 210, and a modeling setting screen generation unit 212. The CAD data storage unit 201, the operation unit 202, the modeling data generation unit 203, the modeling setting storage unit 206, the network communication unit 207, and the display unit 210 have the same configuration as that in the modeling requester terminal 20 of FIG.

  When the modeling requester instructs creation of modeling data, the modeling data generation unit 203 generates modeling data 221 based on the creation instruction and stores the modeling data 221 in the modeling setting storage unit 206. The modeling setting screen generation unit 212 generates a screen data for inputting a password (authentication code) when the modeling requester selects whether or not the modeling information is to be protected. Output to the display unit 210. The display unit 210 displays a modeling setting screen based on the screen data from the modeling setting screen generation unit 212.

  In the modeling setting storage unit 206, a password input during display of the modeling setting screen is stored in association with modeling data. The password is held as modeling setting data. The network communication unit 207 transmits modeling setting data including a password to the three-dimensional modeling apparatus 10 based on a transmission instruction from the modeling client. The password can be set individually for each modeling data.

<Security lock setting screen 240>
FIG. 18 is a diagram showing an example of the operation at the time of modeling setting in the modeling client terminal 20 of FIG. The setting screen 240 is an input screen for allowing the modeling requester to select whether or not the modeling information is to be protected, and includes a password setting selection field 241 and a password input field 242.

  The selection column 241 is an input column for selecting whether or not the modeling information is protected by setting a password. The password is an authentication code for user authentication, and an arbitrary character string made up of numerals or letters can be specified as the password. In the input field 242, when setting a password, a character string constituting the password can be input.

  If a password is set, user authentication is performed at the time of instructing remodeling using the modeling history and at the time of unlocking the upper door 11. For this reason, it is possible to prevent the modeling data from being known to a person other than the modeling requester by remodeling, or the manufactured modeled object from being taken out by a person other than the modeling requester. The user authentication is not limited to the above case, and the user authentication may be performed when an initial modeling instruction is given via the operation display unit 12 of the three-dimensional modeling apparatus 10 or when a modeling reservation is made.

  FIG. 19 is a block diagram showing another example of the functional configuration in the three-dimensional modeling apparatus 10 of FIG. The three-dimensional modeling apparatus 10 includes an operation unit 121, a display unit 122, a network communication unit 400, a modeling job storage unit 401, a modeling processing unit 402, a modeling history storage unit 421, a history list generation unit 422, an authentication screen generation unit 423, A code comparison unit 424, a blocking door lock unit 425, and a lock release unit 426 are included. The operation unit 121, the display unit 122, the network communication unit 400, the modeling job storage unit 401, and the modeling processing unit 402 have the same configuration as that in the three-dimensional modeling apparatus 10 of FIG.

  The modeling processing unit 402 stores the modeling data for which the modeling process has been completed in the modeling history storage unit 421 as a modeling history. In the modeling job storage unit 401, the password received together with the modeling data as the modeling setting data from the modeling requester terminal 20 is held in association with the modeling data. The password is held as attribute information of the modeling job, and is used as a registration code during user authentication. The modeling history includes modeling data and attribute information including a password.

  The history list generation unit 422 generates screen data for displaying a history list screen including a plurality of modeling histories based on a history display instruction from the modeling operator, and outputs the screen data to the display unit 122. The display unit 122 displays a history list screen based on the screen data from the history list generation unit 422, and causes the modeling operator to select one of the modeling histories as a remodeling target.

  The authentication screen generation unit 423 generates screen data for displaying an authentication screen that allows the modeling operator to input a verification code, and outputs the screen data to the display unit 122. The verification code is an input code for verification with the registration code. The display unit 122 displays an authentication screen for remodeling based on the screen data from the authentication screen generation unit 423. This authentication screen is displayed based on a modeling instruction that specifies a modeling history to be remodeled while the history list screen is being displayed.

  The code comparison unit 424 compares the verification code input during the display of the authentication screen with the corresponding registration code, and outputs the comparison result to the modeling processing unit 402 and the lock release unit 426. That is, the verification code input when selecting the remodeling target is compared with the corresponding registration code.

  The modeling processing unit 402 performs modeling processing using a modeling history selected as a remodeling target based on the comparison result of the code comparison unit 424. Specifically, if the verification code matches the registration code, the modeling process based on the modeling history designated as the remodeling target is started. On the other hand, if the verification code does not match the registration code, the modeling process based on the modeling history is not performed, and the modeling instruction by the modeling operator is invalidated. That is, if the authentication code is associated with the modeling history selected as the remodeling target, the modeling processing unit 402 performs the modeling process only when the verification code matches the authentication code associated with the modeling history. Do. However, in the case of a modeling history for which no password is set, if a modeling instruction specifying such a modeling history is detected, a modeling process based on the modeling history is immediately executed.

  The blocking door lock unit 425 locks the upper door 11 during the modeling process. The lock release unit 426 releases the lock state based on the comparison result of the code comparison unit 424 after the modeling process is completed. Specifically, the upper door 11 is locked based on a lock request from the modeling processing unit 402. The lock request is generated in synchronization with the modeling start instruction of the modeling data, and the modeling processing unit 402 starts the modeling process based on the lock completion response from the blocking door lock unit 425.

  The display unit 122 displays an authentication screen for unlocking at the end of the modeling process. The code comparison unit 424 compares the verification code input during the display of the authentication screen with the corresponding registration code. The lock release unit 426 releases the lock state of the upper door 11 when the verification code matches the registration code. On the other hand, if the verification code does not match the registration code, the lock is not released and the locked state of the upper door 11 is maintained. That is, if the authentication code is associated with the modeling data for which the modeling process has been completed, the lock release unit 426 locks the upper door 11 only when the verification code matches the authentication code associated with the modeling data. Is released.

  However, in the case of the modeling process in which no password is set, the lock state of the upper door 11 is automatically released after the modeling process is completed. In this case, in consideration of the time required for the temperature around the head unit 111 to drop to a certain temperature, the locked state is released after a certain time has elapsed after the completion of the modeling process. The unlocking authentication screen may be displayed immediately after the modeling process is completed, or may be displayed immediately before the modeling process is completed.

<History list screen 90>
FIG. 20 is a diagram illustrating an example of an operation at the time of remodeling in the three-dimensional modeling apparatus 10 of FIG. 19, and shows a history list screen 90 displayed on the display unit 122 when browsing a modeling history. The history list screen 90 displays job names and execution times of modeling processing for a plurality of modeling jobs held as modeling history, and a remodeling button 91 is arranged in association with the modeling job. In this example, a remodeling button 91 is provided for each modeling job.

  The execution time is time information when the modeling process is executed, and includes a scheduled start time and a scheduled end time. The remodeling button 91 is an operation icon for starting a modeling process using a modeling history. In the case of a modeling job for which no password is set, the modeling process based on the corresponding modeling history is immediately started by operating the remodeling button 91. On the other hand, in the case of a modeling job for which a password is set, by operating the remodeling button 91, an authentication screen for remodeling is displayed.

<Authentication screen 92>
FIG. 21 is a diagram illustrating an example of an operation at the time of remodeling in the three-dimensional modeling apparatus 10 of FIG. 19. In FIG. 21A, a modeling history in the history list screen 90 is designated and remodeling is performed. An authentication screen 92 displayed when the user authentication is instructed is shown, and an error screen 95 displayed when the user authentication fails is shown in (b).

  On the authentication screen 92, a password input field 93 and a character input button 94 are arranged. The input field 93 is an input field for inputting a verification code for verification with a registered code. By operating the character input button 94, a character string made up of numbers or English characters can be specified as the verification code.

  The character input button 94 is a keyboard type input button in which a plurality of operation icons are arranged, and can input numbers 0 to 9 and English letters A to Z. After inputting the verification code into the input field 93, the verification process between the input verification code and the registration code is started by operating the confirmation button in the character input button 94.

  The error screen 95 is an authentication error screen displayed when the verification code does not match the registration code, and the authentication screen 92 can be displayed again by operating the return button.

  Steps S301 to S307 in FIG. 22 are flowcharts illustrating an example of operations at the time of remodeling in the three-dimensional modeling apparatus 10 in FIG. First, the authentication screen generation unit 423 associates a password with the modeling data held as the modeling history when a modeling instruction specifying any of the modeling histories on the history list screen 90 as a remodeling target is detected. If so, an authentication screen 92 for remodeling is displayed on the display unit 122 (steps S301 and S302). On the other hand, when the password is not associated with the modeling data held as the modeling history, the process proceeds to step S306, and the modeling process based on the modeling history is started.

  Next, when a verification code is input on the authentication screen 92, the code comparison unit 424 compares the code with the corresponding registration code, and outputs the comparison result to the modeling processing unit 402 (steps S303 and S304). If the verification code matches the registration code, the modeling processing unit 402 starts modeling processing based on the modeling history (steps S305 and S306).

  On the other hand, if the verification code does not match the registration code, the modeling processing unit 402 displays the error screen 95 without performing the modeling process based on the modeling history, and ends this process (steps S305 and S307).

  Steps S401 to S409 in FIG. 23 are flowcharts illustrating an example of an operation at the end of the modeling process in the three-dimensional modeling apparatus 10 in FIG. First, when a certain time has elapsed after the UV lamp 351 is turned off (steps S401 and S402), the authentication screen generation unit 423 performs unlocking authentication if a password is associated with the processed modeling data. The screen 92 is displayed on the display unit 122 (steps S403 and S404). On the other hand, if no password is associated with the modeling data, the process proceeds to step S408, and the upper door 11 is unlocked.

  Next, when a verification code is input on the authentication screen 92, the code comparison unit 424 compares it with the corresponding registered code, and outputs the comparison result to the lock release unit 426 (steps S405 and S406). If the verification code matches the registration code, the unlocking unit 426 unlocks the upper door 11 (steps S407 and S408).

  On the other hand, if the verification code does not match the registration code, the lock release unit 426 does not release the lock, displays the error screen 95, and repeats the processing procedure of step S404 (steps S407 and S409).

  According to the present embodiment, the modeling process can be automatically started so that the modeling process ends at the time specified by the modeling operator. Thereby, since the timing at which modeling is completed can be matched with the timing desired by the modeling operator, modeling is completed when the modeling operator is absent, and the modeled object is left in the 3D modeling apparatus 10 for a long time. The liquefaction of the modeling material by, and the removal of the modeled product completed by a third party can be prevented.

  In addition, since the modeling operator only needs to specify either the scheduled start time or the scheduled end time, it is possible to easily make a modeling reservation. Furthermore, since the determination result of necessity of tank replacement is displayed before the start of the modeling process, the modeling operator recognizes in advance whether the modeling material tank needs to be replaced during the modeling process. Can do. In addition, since the recommended time for tank replacement is obtained from the remaining amount of modeling material and estimated usage, it is displayed before the modeling process starts, so the modeling operator can replace the modeling material tank during the modeling process Appropriate timing can be recognized in advance.

  For example, if the modeling material tank needs to be replaced when the modeling operator is absent, the modeling operator cannot replace the modeling material tank. In this case, the modeling material is insufficient, and the modeling process is interrupted. Therefore, by displaying the recommended time for tank replacement, if the modeling operator determines that tank replacement is difficult during the recommended time, the modeling start scheduled time is set so that the recommended time falls within the time zone in which tank replacement is possible. Since reservations can be made by shifting, it is possible to prevent the modeling process from being interrupted.

  In addition, a notification email is sent when the recommended time for tank replacement arrives and when the modeling process scheduled end time arrives, prompting the modeling client to replace the tank or ending the modeling process I can inform you.

  In the present embodiment, an example in which the z moving unit 40 is configured by the portable plate 41 and the plate mounting base 42 has been described. However, the present invention includes the portable plate 41 and the plate mounting base 42. The unit is not limited to a movable type, and may be a fixed type. That is, the present invention includes a configuration in which a modeling material layer is stacked on the modeling stage 112 by moving the head unit 111 in the vertical direction.

  Moreover, although this Embodiment demonstrated the example in case the three-dimensional modeling apparatus 10 is an inkjet type | mold lamination-type modeling machine, this invention does not limit the modeling method of a modeling target object to this, modeling. Any other method may be used as long as the modeling material layers are sequentially stacked on the stage 112. For example, the present invention can also be applied to a modeling apparatus that employs an optical modeling method in which a UV curable resin is solidified by irradiation with laser light. In the optical modeling method, the resin liquid surface is selectively exposed and solidified by irradiating the resin liquid surface with laser light from above the container containing a liquid made of UV curable resin and scanning the laser light two-dimensionally. Or this invention is applicable also to the modeling apparatus which employ | adopted the powder bonding method, the sheet | seat lamination method, and the resin extrusion method. In the powder bonding method, a powder layer made of thermoplastic powder is selectively melted and solidified by irradiating a laser beam, or a powder layer is selectively applied by applying a binder liquid to a powder such as sand. It is a modeling method that solidifies. The sheet lamination method is also called a LOM (Laminated Object Manufacturing) method, and is a modeling method in which sheet materials such as paper are bonded to each other, and the upper sheet material is cut using a knife or the like to cut a predetermined shape. . The resin extrusion method is also called an FDM (Fused Deposition Molding) method, and is a modeling method in which a resin layer is formed by scanning a nozzle while extruding it from a nozzle in a molten state.

DESCRIPTION OF SYMBOLS 100 Modeling system 10 Three-dimensional modeling apparatus 11 Upper door 110 Work space 111 Head unit 112 Modeling stage 113 x Scanning engagement groove 114 Purge tray 116 Top plate 12 Operation display part 121 Operation part 122 Display part 130 Cartridge storage part 13 Front door 13M Model material cartridge 13S Support material cartridge 13H Waste liquid tank 20 Modeling requester terminal 21 Administrator terminal 23 Internet 24 Mail server 31 Support material nozzle unit 311 Support material reserve tank 312 Support material modeling material nozzle 32 Model material nozzle Unit 321 Reserve tank 322 for model material Modeling material nozzle 33 for model material y Scan holder unit 34 Roller unit 341 Film thickness adjusting roller 35 Lamp unit 351 UV lamp 0 z moving unit 41 portable plate 42 plate mounting base 43 z drive device 50 reception screen 60 reservation modeling setting screen 400 network communication unit 401 modeling job storage unit 402 modeling processing unit 403 scheduled start time setting unit 404 scheduled termination time calculation unit 405 Remaining amount detection unit 406 Tank replacement determination unit 407 Recommended time calculation unit 408 Notification mail transmission unit 1 LAN
2 Discharge port 3 Droplet 4 Modeling material layer Fd1 to Fd4 Field M Model material S Support material SS Underlayer

Claims (7)

In a three-dimensional modeling apparatus that sequentially forms a modeling material layer made of modeling material on a modeling stage,
Modeling data storage means for holding modeling data including a three-dimensional shape of the modeling object and an arrangement mode indicating the position and orientation of the modeling object on the modeling stage;
Based on the modeling data, modeling processing means for performing modeling processing for forming a modeling target on the modeling stage;
An estimated modeling time storage means for holding an estimated modeling time required for the modeling processing calculated based on the three-dimensional shape of the modeling object and the position and orientation on the modeling stage;
A scheduled time receiving means capable of receiving designation of either one of the scheduled start time and the scheduled end time of the modeling process;
Based on one estimated time received by the estimated modeling time and the scheduled time receiving means, a modeling time calculating means for obtaining the other scheduled time;
A scheduled time display means for displaying one scheduled time received by the scheduled time receiving means and the other scheduled time calculated by the modeling time calculating means,
The three-dimensional modeling apparatus, wherein the modeling processing unit starts the modeling processing at the scheduled start time. Removable modeling material tank for accommodating the modeling material before use,
A remaining amount detecting means for detecting the remaining amount of the modeling material in the modeling material tank;
Tank replacement determination means for determining whether or not the modeling material tank needs to be replaced during execution of the modeling process based on the remaining amount;
The three-dimensional modeling apparatus according to claim 1, further comprising determination result display means for displaying the determination result before the modeling process is started. Based on the modeling data, estimated usage calculation means for obtaining an estimated usage of the modeling material in the modeling process;
Based on the remaining amount of the modeling material and the estimated usage, a recommended time calculating means for obtaining a recommended time for tank replacement,
The three-dimensional modeling apparatus according to claim 2, wherein the determination result display unit displays the recommended time before the modeling process is started. Reservation time storage means for holding the scheduled start time and the scheduled end time in association with the modeling data,
When there is a modeling process scheduled to be executed before the modeling process to be determined, the tank replacement determination unit is based on the estimated usage amount of the modeling material and the current remaining modeling material in the modeling process scheduled to be executed. The three-dimensional modeling apparatus according to claim 2, wherein the necessity of tank replacement is determined. A transmission destination address storage means for holding a transmission destination address of the notification mail in association with the modeling data;
4. A notification mail transmitting means for transmitting the notification mail including a message for prompting tank replacement to the transmission destination designated by the transmission destination address when the recommended time arrives. The three-dimensional modeling apparatus described. A transmission destination address storage means for holding a transmission destination address of the notification mail in association with the modeling data;
A notification mail transmission unit that transmits the notification mail including a message for notifying the end of the modeling process to the transmission destination specified by the transmission destination address when the scheduled end time arrives. Item 5. A three-dimensional modeling apparatus according to any one of Items 1 to 4. A modeling material that forms modeling data for forming a modeling object, and a modeling material that is connected to the modeling data generation device via a communication network and is formed on a modeling stage based on the modeling data In a modeling system consisting of a three-dimensional modeling apparatus that performs modeling processing for sequentially laminating layers,
The modeling data creation device includes modeling data generating means for generating modeling data including a three-dimensional shape of the modeling target and an arrangement mode indicating the position and orientation of the modeling target on the modeling stage;
Estimated modeling time calculating means for calculating an estimated modeling time required for the modeling process based on the three-dimensional shape of the modeling object and the position and orientation on the modeling stage;
A scheduled time receiving means capable of receiving designation of either one of the scheduled start time and the scheduled end time of the modeling process;
Based on one estimated time received by the estimated modeling time and the scheduled time receiving means, a modeling time calculating means for obtaining the other scheduled time;
A modeling setting transmitting unit that transmits one scheduled time received by the scheduled time receiving unit and the other scheduled time calculated by the modeling time calculating unit to the three-dimensional modeling apparatus together with the modeling data;
The three-dimensional modeling apparatus includes a scheduled time storage unit that holds the scheduled time received from the modeling data creation apparatus in association with the modeling data;
A modeling system comprising: modeling processing means for starting the modeling processing based on modeling data associated with the scheduled start time when the scheduled start time arrives.

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