JP2010052330A - Three-dimensional shaping machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To considerably reduce the cost of a drive system and to miniaturize the whole drive system (to reduce an occupied space). <P>SOLUTION: A shaping machine is equipped with a carriage mechanism Mc having an injection head 3 for injecting a shaping material R to a shaping table 2, an X-direction movement mechanism Mx which relatively moves the injection head 3 in the X direction to the shaping table 2, a Y-direction movement mechanism My which relatively moves the injection head 3 in the Y direction to the shaping table 2, and a Z-direction movement mechanism Mz which moves the shaping table 2 in the Z direction to the injection head 3. The shaping machine also includes: a cleaning roller 4 for cleaning the shaping material R on the shaping table 2, in the carriage mechanism Mc; and a cleaning roller driving mechanism Mr having a movement amount conversion part 5 which converts the movement amount in the Y direction of the Y-direction movement mechanism My into a rotational movement amount and a movement amount transmission part 6 which transmits the rotational movement amount to the cleaning roller 4 to rotate the cleaning roller 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a three-dimensional modeling machine including a carriage mechanism having an injection head for injecting a modeling material onto a modeling table and a moving mechanism for moving the injection head relative to the modeling table.

  Conventionally, as a three-dimensional modeling machine including an injection head for injecting a modeling material onto a modeling table and a moving mechanism for moving the injection head relative to the modeling table in the X, Y, and Z directions, Patent Document 1 discloses The disclosed three-dimensional modeling apparatus is known.

The three-dimensional modeling apparatus disclosed in the same document 1 includes a control unit, a binder applying unit electrically connected to the control unit, a modeling unit, a powder supply unit, a powder diffusion unit, and an infrared lamp, in particular. The control unit includes a computer and a drive control unit electrically connected to the computer, and the drive control unit further moves the nozzle head for injecting the binder (modeling material) in the horizontal XY plane. A driving unit for driving the direction moving unit and the XY direction moving unit is provided. The powder diffusion unit includes a blade that diffuses the powder (modeling material) supplied from the powder supply unit, a guide rail that regulates the operation of the blade, and a drive unit that moves the blade.
JP 2001-334580 A

  However, conventional 3D modeling machines, including the 3D modeling apparatus described above, generally have the following problems to be solved.

  First, the 3D modeling apparatus described above includes a blade that diffuses the powder (modeling material) supplied from the powder supply unit. Usually, in the 3D modeling machine, the modeling supplied to the modeling table. It has a cleaning mechanism that arranges materials. In this case, an independent drive system having a vertical drive unit for moving the blades up and down in the vertical direction (Z direction) and a horizontal drive unit for reciprocating the blades in the horizontal direction (X direction) is required. There is room for further improvement from the viewpoint of cost reduction and downsizing and compactness, such as an increase in cost and an increase in the size of the entire drive system (expansion of occupied space) cannot be ignored.

  Second, the 3D modeling apparatus described above includes an XY direction moving unit that moves the nozzle head in the horizontal XY plane and a drive unit that drives the XY direction moving unit. An X-direction moving mechanism that relatively moves the ejection head in the X direction with respect to the table and a Y-direction movement mechanism that relatively moves the X-direction moving mechanism including the ejection head in the Y direction are provided. In this case, it is necessary for the Y-direction moving mechanism to move the entire heavy X-direction moving mechanism including the drive motor, etc., and the response and controllability are reduced, and vibration that increases with the square of the weight (M / C vibration) There is room for further improvement from the viewpoint of solving these problems, such as generation of noise, reduction in control accuracy, and increase in power consumption.

  The object of the present invention is to provide a three-dimensional modeling machine that solves the problems in the background art.

  In order to solve the above-described problems, the present invention provides a carriage mechanism Mc having an injection head 3 for injecting the modeling material R onto the modeling table 2, and X for moving the injection head 3 relative to the modeling table 2 in the X direction. A direction moving mechanism Mx, a Y direction moving mechanism My that moves the injection head 3 relative to the modeling table 2 in the Y direction, and a Z direction moving mechanism Mz that moves the modeling table 2 relative to the injection head 3 in the Z direction. When the three-dimensional modeling machine 1 is provided, the carriage mechanism Mc is provided with a cleaning roller 4 for cleaning the modeling material R injected onto the modeling table 2, and the Y-direction moving mechanism My moves in the Y direction. Is transferred to the cleaning roller 4, and the cleaning roller 4 is rotated. Characterized in that a cleaning roller drive mechanism Mr with momentum transfer section 6.

  In this case, according to a preferred aspect of the invention, the modeling material R includes a modeling material Ra that models the three-dimensional model A and a support material Rs that fills a space other than the three-dimensional model A. On the other hand, the X-direction moving mechanism Mx includes an X-direction drive unit 11 provided separately from the carriage mechanism Mc and an X-direction transmission unit that transmits the amount of movement of the X-direction drive unit 11 to the ejection head 3 of the carriage mechanism Mc. 12 can be configured. At this time, the X-direction drive unit 11 can be configured to include an X-direction rotation drive unit 13 and a guide shaft 14 that is rotated by the X-direction rotation drive unit 13 and has a circumferential direction restriction unit 14c along the Y direction. At the same time, the X-direction transmission unit 12 is inserted into the first transmission gear 15 through which the guide shaft 14 is inserted, is slidable in the axial direction (Y direction), and is regulated in the circumferential direction by the circumferential direction regulation unit 14c. A second transmission gear 18 that transmits the rotation of the gear 15 to one pulley 17 that spans the timing belt 16 that supports the injection head 3 can be provided. On the other hand, the movement amount conversion unit 5 includes a conversion gear (first conversion gear) 22 that meshes with the tooth portion 21c of the timing belt 21 spanned between a pair of pulleys 19 and 20 that move the carriage mechanism Mc in the Y direction. The movement amount transmission unit 6 can be configured to include a second conversion gear 23 that meshes with the first conversion gear 22 and converts the rotation direction.

  According to the three-dimensional modeling machine 1 according to the present invention having such a configuration, the following remarkable effects can be obtained.

  (1) The carriage mechanism Mc is provided with a cleaning roller 4 for cleaning the modeling material R injected onto the modeling table 2, and a movement amount conversion unit 5 that converts the Y-direction movement amount of the Y-direction movement mechanism My into a rotational movement amount. In addition, since the cleaning roller driving mechanism Mr having the movement amount transmitting portion 6 for transmitting the rotational movement amount to the cleaning roller 4 and rotating the cleaning roller 4 is provided, an independent drive system for rotating the cleaning roller 4 becomes unnecessary, and driving is performed. The cost of the system can be greatly reduced, and the entire drive system can be made compact and compact (occupation space can be reduced). Therefore, the desktop three-dimensional modeling machine 1 that can be placed on a desk or the like can be easily realized.

  (2) According to a preferred embodiment, the X-direction moving mechanism Mx is provided separately from the carriage mechanism Mc, and the amount of movement of the X-direction driving unit 11 is transferred to the ejection head 3 of the carriage mechanism Mc. If it comprises the transmission part 12 which transmits, it can implement | achieve size reduction and weight reduction of the moving part in the X direction moving mechanism Mx. Therefore, it is possible to improve responsiveness (controllability), reduce vibration (M / C vibration) that increases with the square of weight, increase control accuracy, and reduce power consumption.

  (3) According to a preferred embodiment, the X-direction drive unit 11 is rotated by the X-direction rotation drive unit 13 and the X-direction rotation drive unit 13, and the guide shaft 14 along the Y direction has a circumferential-direction regulating unit 14c. And a first transmission gear 15 through which the guide shaft 14 is inserted, slidable in the axial direction (Y direction), and restricted in the circumferential direction by the circumferential restriction portion 14c. If the second transmission gear 18 that transmits the rotation of the first transmission gear 15 to one pulley 17 that spans the timing belt 16 that supports the injection head 3 is provided, the responsiveness and controllability at the time of control can be provided. The X-direction moving mechanism Mx that can improve the speed can be realized easily and reliably, and in particular, the moving direction and moving speed of the injection head 3 can be easily achieved by interposing the second transmission gear 18. It can be constant.

  (4) According to a preferred embodiment, the shift amount conversion unit 5 is meshed with the gear portion 21c of the timing belt 21 spanned between a pair of pulleys 19 and 20 that move the carriage mechanism Mc in the Y direction (first gear). If the shift amount transmission unit 6 includes the second conversion gear 23 that meshes with the first conversion gear 22 and converts the rotation direction, the cleaning roller 4 is rotated. The cleaning roller drive mechanism Mr that does not require an independent drive system can be easily and reliably realized, and in particular, the rotation direction and the rotation speed of the cleaning roller 4 can be easily set by interposing the second conversion gear 23. it can.

  Next, the best embodiment according to the present invention will be given and described in detail with reference to the drawings.

  First, the configuration of the three-dimensional modeling machine 1 according to the present embodiment will be specifically described with reference to FIGS.

  In FIG. 7, the external appearance structure of the three-dimensional modeling machine 1 which concerns on this embodiment is shown. The three-dimensional modeling machine 1 is entirely covered with a housing 70, and is configured as a desktop type so that the size can be placed on a desk or the like. Reference numeral 71 denotes an open / close door, and 72 denotes a power switch. In addition, the housing 70 includes a main part configuration of the three-dimensional modeling machine 1 illustrated in FIG. 1 and a modeling machine control unit 75.

  Next, the configuration of the main part of the three-dimensional modeling machine 1 will be described. In FIG. 1, Mc is a carriage mechanism, Mx is an X direction moving mechanism, My is a Y direction moving mechanism, and Mz is a Z direction moving mechanism. The carriage mechanism Mc includes a carriage frame 31, and the carriage frame 31 is slidably supported by a pair of Y direction guide rails 32p and 32q arranged along the Y direction. The positions of the Y-direction guide rails 32p and 32q are fixed with respect to the housing 70. The carriage mechanism Mc includes an injection head 3 that injects the modeling material R onto the modeling table 2 and a cleaning roller 4 that cleans the modeling material R injected onto the modeling table 2, and a part of the X-direction moving mechanism Mx. To support. The injection head 3 has a function of injecting a liquid modeling material R from a nozzle by an inkjet method, and injects a nozzle group and a support material Rs for injecting a modeling material Ra of different colors including yellow, magenta, and cyan. Has a nozzle. Further, as shown in FIG. 2, the cleaning roller 4 is arranged on the back side of the carriage frame 31, that is, on the opposite side to the side where the ejection head 3 is arranged, and is rotated to a position fixed to the carriage frame 31. It is supported movably. Further, although not shown, an ultraviolet (UV) lamp for curing the modeling material R is provided on the bottom surface of the carriage frame 31.

  A part of the X-direction moving mechanism Mx disposed on the carriage mechanism Mc includes a pair of pulleys 17 and 33 rotatably disposed on both sides of the carriage frame 31 and a timing belt 16 spanned between the pulleys 17 and 33. A head moving mechanism Mh, a second transmission gear 18 arranged coaxially with the pulley 17 and rotating integrally with the pulley 17, and a first transmission gear 15 meshing with the second transmission gear 18 are included. . The ejection head 3 is fixed to a predetermined position of the timing belt 16 via a connecting member 34 and is slidably supported by an X-direction guide rail 35 disposed along the moving direction of the timing belt 16. The pulley 17 is provided with a rotary encoder 36 for detecting the rotational speed. The rotary encoder 36 may be an increment type or an absolute type.

  The X-direction moving mechanism Mx further includes an X-direction drive unit 11 provided separately from the carriage mechanism Mc. The X-direction drive unit 11 includes an X-direction rotation drive unit 13 and a guide shaft 14 that is rotated by the X-direction rotation drive unit 13 and has a circumferential direction restriction unit 14c along the Y direction. The X direction rotation drive unit 13 incorporates a drive motor such as a stepping motor or a servo motor. The guide shaft 14 penetrates the carriage frame 31 and is inserted into the first transmission gear 15 described above. FIG. 4 shows the first transmission gear 15 and the guide shaft 14. The peripheral surface of the guide shaft 14 has concave grooves 37i and 37j along one or two or more axial directions (Y direction), and the first transmission gear 15 formed in a donut shape in the concave grooves 37i and 37j. The convex portions 38i and 38j provided on the inner peripheral surface engage with each other. The concave grooves 37 i and 37 j serve as a circumferential direction restricting portion 14 c provided on the guide shaft 14. Accordingly, the first transmission gear 15 is slidable in the axial direction with respect to the guide shaft 14, and the rotational displacement in the circumferential direction is restricted by the circumferential direction restricting portion 14c. In this case, the configuration from the first transmission gear 15 to the injection head 3 becomes the X-direction transmission unit 12 that transmits the movement amount of the X-direction drive unit 11 to the injection head 3. As described above, the X-direction drive unit 11 includes the X-direction rotation drive unit 13 and the guide shaft 14 that is rotated by the X-direction rotation drive unit 13 and that has the circumferential direction restriction unit 14c along the Y direction. In addition, the first transmission gear 15 is inserted into the X-direction transmission portion 12 through the guide shaft 14, is slidable in the axial direction (Y direction), and is regulated in the circumferential direction by the circumferential direction regulation portion 14c. If the second transmission gear 18 that transmits the rotation of the transmission gear 15 to the one pulley 17 that spans the timing belt 16 that supports the injection head 3 is provided, the responsiveness and controllability during control can be improved. The X-direction moving mechanism Mx can be easily and surely realized, and in particular, the advantage that the moving direction and moving speed of the injection head 3 can be easily set by interposing the second transmission gear 18. A.

  The Y-direction moving mechanism My is a carriage moving mechanism Mg including a timing belt 21 that spans between a pair of pulleys 19 and 20 that move the carriage mechanism Mc in the Y direction along the pair of Y-direction guide rails 32p and 32q. Is provided. For this reason, the carriage frame 31 is fixed to a predetermined position of the timing belt 21, particularly the timing belt 21 located on the upper side. The Y-direction moving mechanism My includes a Y-direction rotation drive unit 41, and the rotation axis of the Y-direction rotation drive unit 41 is coupled to the axis of one pulley 19 via the transmission shaft 42. The Y direction rotation drive unit 41 incorporates a drive motor such as a stepping motor or a servo motor. The pulley 20 is provided with a rotary encoder 39 for detecting the rotation speed. The rotary encoder 39 may also be an incremental type or an absolute type.

  On the other hand, the carriage frame 31 has a movement amount converter 5 that converts the Y-direction movement amount of the Y-direction movement mechanism My into a rotational movement amount, and a movement that transmits the rotational movement amount to the cleaning roller 4 and rotates the cleaning roller 4. A cleaning roller drive mechanism Mr having a quantity transmission unit 6 is attached. As shown in FIGS. 2 and 5, the cleaning roller driving mechanism Mr includes a sub frame 45 fixed to the carriage frame 31, and meshes with the first conversion gear 22 and the first conversion gear 22 in the sub frame 45. Each of the second conversion gears 23 is rotatably attached. In this case, the first conversion gear 22 meshes with the timing belt 21, particularly the tooth portion 21 c of the lower timing belt 21. Further, the second conversion gear 23 is arranged at a floating position with respect to the tooth portion 21 c, and the rotation direction is converted by the second conversion gear 23. Therefore, the first conversion gear 22 constitutes the movement amount conversion unit 5, and the second conversion gear 23 constitutes the movement amount transmission unit 6. Further, the second conversion gear 23 and the cleaning roller 4 are arranged coaxially, and the transmission shaft 46 of the second conversion gear 23 is coupled to the cleaning roller 4 via an electromagnetic clutch 47. Thus, the conversion gear (first conversion gear) 22 meshes with the tooth portion 21c of the timing belt 21 spanned between the pair of pulleys 19 and 20 that move the carriage mechanism Mc in the Y direction. If the moving amount transmission unit 6 includes the second conversion gear 23 that meshes with the first conversion gear 22 to change the rotation direction, an independent drive system that rotates the cleaning roller 4 is provided. The cleaning roller driving mechanism Mr that eliminates the need for the cleaning roller 4 can be easily and reliably realized, and in particular, the rotation direction and the rotation speed of the cleaning roller 4 can be easily set by interposing the second conversion gear 23.

  The Z direction moving mechanism Mz has a function of moving the modeling table 2 in the Z direction with respect to the injection head 3. The modeling table 2 is arranged below the injection head 3, and the modeling table 2 is moved up and down by the Z-direction moving mechanism Mz. The Z-direction moving mechanism Mz includes a Z-direction drive unit 51. The Z-direction drive unit 51 converts the Z-direction rotation drive unit 52 and the rotation of the Z-direction rotation drive unit 52 into a vertical displacement (Z-direction displacement). A motion conversion unit 53 using a ball screw mechanism or the like is provided. Then, the output shaft 53 e that moves up and down in the motion conversion unit 53 is coupled to the leg of the modeling table 2. The Z-direction rotation drive unit 52 incorporates a drive motor such as a stepping motor or a servo motor. Reference numeral 55 denotes a modeling object base attached to the modeling table 2 placed on the upper surface of the modeling table 2.

  On the other hand, as shown in FIG. 7, the 3D modeling machine 1 according to this embodiment is connected to another computer 80 to configure a 3D modeling system when used. In this case, the modeling machine control unit 75 and the computer 80 in the three-dimensional modeling machine 1 are connected by wired means (USB cable or the like) 81 or wireless means (wireless LAN or the like). As the computer 80, various computing devices such as a general-purpose personal computer (personal computer) can be used. Therefore, the computer 80 stores or registers application software and various data (database) for comprehensively controlling the 3D modeling machine 1. In FIG. 6, reference numeral 61 denotes a control system including the modeling machine control unit 75 and the computer 80. At least the rotary encoders 36 and 39, the X-direction rotation drive unit 13, the Y-direction rotation drive unit 41, and the Z-direction rotation drive unit 52 are connected to the modeling machine control unit 75, respectively, and the injection head 3 and the electromagnetic clutch. 47 is connected.

  Next, operation | movement (usage method) of the three-dimensional modeling machine 1 which concerns on this embodiment is demonstrated with reference to FIGS.

  First, each operation of the X direction moving mechanism Mx, the Y direction moving mechanism My, the Z direction moving mechanism Mz, and the cleaning roller driving mechanism Mr will be described.

  In the X-direction moving mechanism Mx, the guide shaft 14 is rotated by the rotation operation of the X-direction rotation driving unit 13, and the first transmission gear 15 is rotated by the rotation of the guide shaft 14. That is, since the guide shaft 14 has the circumferential restricting portion 14c by the concave grooves 37i and 37j along the axial direction, the first transmission gear 15 in which the convex portions 38i and 38j engage with the concave grooves 37i and 37j is integrated. Rotate to. The second transmission gear 18 meshing with the first transmission gear 15 is rotated by the rotation of the first transmission gear 15, and the pulley 17 integrally provided on the second transmission gear 18 is also rotated. Thus, the timing belt 16 in the head moving mechanism Mh moves, and the ejection head 3 fixed to the timing belt 16 moves in the X direction along the X direction guide rail 35. At this time, the ejection head 3 can be moved in the forward and reverse directions of the X direction by controlling the rotational direction of the X direction rotational drive unit 13. On the other hand, the rotational speed of the pulley 17 is detected by the rotary encoder 36 and given to the modeling machine control unit 75. Thereby, feedback control with respect to the X direction position of the injection head 3 is performed.

  In the Y-direction moving mechanism My, the transmission shaft 42 is rotated by the rotation operation of the Y-direction rotation drive unit 41, and the pulley 19 provided integrally on the transmission shaft 42 is rotated. Accordingly, the timing belt 21 in the carriage moving mechanism Mg moves, and the carriage frame 31 (carriage mechanism Mc) fixed to the timing belt 21 moves in the Y direction along the Y direction guide rails 32p and 32q. That is, the ejection head 3 provided in the carriage mechanism Mc also moves in the Y direction. At this time, by controlling the rotation direction of the Y-direction rotation drive unit 41, the ejection head 3 can be moved in the forward and reverse directions of the Y direction. On the other hand, the rotational speed of the pulley 20 is detected by the rotary encoder 39 and given to the modeling machine control unit 75. Thereby, feedback control with respect to the Y direction position of the ejection head 3 is performed.

  Incidentally, since the first transmission gear 15 described above is supported on the guide shaft 14 so as to be displaceable in the axial direction, even if the carriage mechanism Mc moves in the Y direction, it does not affect the movement of the carriage mechanism Mc. Does not affect. Further, the X-direction rotation drive unit 13 and the guide shaft 14 that constitute a part of the X-direction moving mechanism Mx are not mounted on the carriage mechanism Mc. Accordingly, the carriage mechanism Mc can be reduced in size and weight, improved in response (controllability) when controlling the Y-direction moving mechanism My, and reduced in vibration (M / C vibration) that increases with the square of the weight. Therefore, it is possible to improve control accuracy and reduce power consumption.

  On the other hand, when the Y-direction moving mechanism My operates, the timing belt 21 moves, and the first conversion gear 22 in the cleaning roller driving mechanism Mr meshes with the tooth portion 21c in the lower timing belt 21, so that the first The conversion gear 22 rotates, and the rotation of the first conversion gear 22 is transmitted to the second conversion gear 23 that meshes with the first conversion gear 22. Thereby, the transmission shaft 46 integrally provided on the same axis of the second conversion gear 23 also rotates. Therefore, if the electromagnetic clutch 47 is switched to the connection mode or the disconnection mode, the cleaning roller 4 can be rotated or stopped.

  As described above, according to the three-dimensional modeling machine 1 according to this embodiment, the cleaning roller 4 for cleaning the modeling material R injected to the modeling table 2 is provided in the carriage mechanism Mc, and the Y-direction moving mechanism My of the Y direction moves. Since the cleaning roller drive mechanism Mr having the movement amount conversion unit 5 that converts the direction movement amount into the rotation movement amount and the movement amount transmission unit 6 that transmits the rotation movement amount to the cleaning roller 4 and rotates the cleaning roller 4 is provided. An independent drive system for rotating the cleaning roller 4 is not required, and the cost of the drive system can be greatly reduced, and the entire drive system can be reduced in size and size (occupied space can be reduced). Therefore, the desktop three-dimensional modeling machine 1 that can be placed on a desk or the like can be easily realized.

  In the Z-direction moving mechanism Mz, if the Z-direction rotation driving unit 52 rotates, this rotation is converted into a vertical displacement (Z-direction displacement) of the output shaft 53e by the motion conversion unit 53 using a ball screw mechanism or the like. Thereby, the modeling table 2 supported by the output shaft 53e is also moved up and down (displaced in the Z direction). At this time, the modeling table 2 can be moved in the forward and reverse directions of the Z direction by controlling the rotation direction of the Z direction rotation driving unit 52. Thereby, the raising / lowering displacement of the modeling table 2 becomes a relative displacement in the Z direction of the injection head 3 located above.

  Next, an actual modeling operation will be described. First, since modeling data for the three-dimensional model A to be modeled is set in the computer 80, modeling processing is performed based on the modeling data. FIG. 3 shows the operation (action) during modeling. The modeling principle is laminated by sequentially printing a thin modeling layer on the modeling table 2 (modeled object base 55) according to the same principle as an ink jet printer. That is, by controlling the injection head 3 in the X direction and the Y direction, the modeling material Ra corresponding to the modeling data in the first layer in the Z direction is injected. Further, the support material Rs is injected into a portion other than the portion corresponding to the three-dimensional structure A from which the modeling material Ra is injected. The thickness of the first layer is about 0.1 [mm], and the layer surface of the first layer is entirely filled with the modeling material Ra and the support material Rs.

  Further, the first layer is cured by the irradiation of ultraviolet rays from the ultraviolet lamp, and before being completely cured, the cleaning roller 4 prepares (cleans) the upper surface to be a flat surface. Thereafter, the modeling table 2 is lowered in the Z direction by a displacement corresponding to the second layer. Then, the modeling process of the second layer is performed by the same procedure, and the modeling process is sequentially performed by the same procedure from the third layer to the n-th layer (final layer). When the modeling process is completed up to the final layer, the target three-dimensional model A can be obtained by removing the support material Rs by, for example, immersing the modeled body in a chemical solution.

  Although the best embodiment has been described in detail above, the present invention is not limited to such an embodiment, and departs from the gist of the present invention in the detailed configuration, shape, material, quantity, numerical value, and the like. It can be changed, added, or deleted as long as it is not.

  For example, although the carriage mechanism Mc is shown integrally with the ejection head 3 and the cleaning roller 4, it is not necessarily required to be integrated. For example, the first carriage mechanism and the second carriage mechanism configured separately are provided. The ejection head 3 may be disposed on the first carriage mechanism, and the cleaning roller 4 may be disposed on the second carriage mechanism. Moreover, although the Z direction moving mechanism Mz showed the case where the modeling table 2 was moved to a Z direction with respect to the injection head 3, the structure which moves the injection head 3 side to a Z direction may be sufficient. On the other hand, the X-direction moving mechanism Mx has been shown to be moved by the timing belt 16, but may be moved by another moving mechanism such as a ball screw mechanism. In this case, the rotation of the second transmission gear 18 may be transmitted to a rotation input unit such as a ball screw mechanism. Further, the Y-direction moving mechanism My is also moved by the timing belt 21, but may be moved by another moving mechanism such as a ball screw mechanism. In this case, the same operation can be performed by arranging a separate rack with which the first conversion gear 22 is engaged. On the other hand, although the configuration using the first transmission gear 15, the second transmission gear 18, the first conversion gear 22, and the second conversion gear 23 has been illustrated, the number and size of these gears can be arbitrarily selected. The rotary encoders 36 and 39 may be linear encoders (linear scales) that directly detect the position of the injection head 3 or the carriage frame 31. Note that the 3D modeling machine 1 according to the present invention can be downsized and compact, and is particularly optimally configured as a desktop type, but can also be used for various types of 3D modeling machines such as a floor-mounted type. .

The perspective view which shows the principal part structure of the three-dimensional modeling machine which concerns on the best embodiment of this invention, A perspective view clearly showing the cleaning roller drive mechanism in the main part configuration of the 3D modeling machine, Operation (action) explanatory diagram of the 3D modeling machine, The block diagram which specifies the 1st transmission gear and the 2nd transmission gear in the X direction movement mechanism of the 3D modeling machine, The block diagram which specifies the 1st conversion gear and the 2nd conversion gear in the cleaning roller drive mechanism of the 3D modeling machine, A schematic plane configuration diagram including the control system of the main part of the 3D modeling machine, System configuration diagram including external view of the 3D modeling machine,

Explanation of symbols

  1: three-dimensional modeling machine, 2: modeling table, 3: injection head, 4: cleaning roller, 5: movement amount conversion unit, 6: movement amount transmission unit, 11: X direction driving unit, 12: transmission unit, 13: X direction rotation drive unit, 14: shaft, 14c: circumferential direction regulating unit, 15: first transmission gear, 16: timing belt, 17: pulley, 18: second transmission gear, 19: pulley, 20: pulley, 21: Timing belt, 21c: tooth portion of timing belt, 22: first conversion gear, 23: second conversion gear, R: modeling material, Ra: modeling material, Rs: support material, Mc: carriage mechanism, Mx: X direction Moving mechanism, My: Y direction moving mechanism, Mz: Z direction moving mechanism, Mr: Cleaning roller driving mechanism, A: Three-dimensional structure

Claims (5)

  A carriage mechanism having an injection head for injecting a modeling material onto a modeling table, an X-direction moving mechanism for relatively moving the injection head in the X direction with respect to the modeling table, and the Y injection head with respect to the modeling table A three-dimensional modeling machine comprising: a Y-direction moving mechanism that relatively moves in a direction; and a Z-direction movement mechanism that moves the modeling table in the Z direction relative to the injection head, wherein the modeling mechanism is mounted on the carriage mechanism. A cleaning roller for cleaning the modeling material injected on the table is provided, a movement amount conversion unit for converting the Y-direction movement amount of the Y-direction movement mechanism into a rotation movement amount, and the rotation movement amount are transmitted to the cleaning roller. A cleaning roller driving mechanism having a movement amount transmitting portion for rotating the cleaning roller. Three-dimensional modeling machine and said.   The three-dimensional modeling machine according to claim 1, wherein the modeling material includes a modeling material for modeling the three-dimensional modeling object and a support material for filling a space other than the three-dimensional modeling object.   The X-direction moving mechanism includes an X-direction drive unit provided separately from the carriage mechanism, and an X-direction transmission unit that transmits the movement amount of the X-direction drive unit to the ejection head of the carriage mechanism. The three-dimensional modeling machine according to claim 1 or 2.   The X-direction drive unit includes an X-direction rotation drive unit and a guide shaft that is rotated by the X-direction rotation drive unit and has a circumferential direction restricting unit along the Y direction. A first transmission gear that is inserted through the guide shaft, is slidable in the axial direction (Y direction), and is regulated in the circumferential direction by the circumferential direction restricting portion, and a timing at which the rotation of the first transmission gear is supported by the injection head The three-dimensional modeling machine according to claim 3, further comprising a second transmission gear that transmits to one pulley across the belt.   The movement amount conversion unit includes a conversion gear (first conversion gear) that meshes with a tooth portion of a timing belt spanned between a pair of pulleys that move the carriage mechanism in the Y direction, and the movement amount transmission unit includes: The three-dimensional modeling machine according to claim 1, further comprising a second conversion gear that meshes with the first conversion gear and converts a rotation direction.

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