WO2016052228A1 - Tête d'éjection d'imprimante 3d - Google Patents

Tête d'éjection d'imprimante 3d Download PDF

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Publication number
WO2016052228A1
WO2016052228A1 PCT/JP2015/076470 JP2015076470W WO2016052228A1 WO 2016052228 A1 WO2016052228 A1 WO 2016052228A1 JP 2015076470 W JP2015076470 W JP 2015076470W WO 2016052228 A1 WO2016052228 A1 WO 2016052228A1
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Prior art keywords
injection
turntable
nozzles
printer
injection nozzle
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Application number
PCT/JP2015/076470
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English (en)
Japanese (ja)
Inventor
大直 加藤
Original Assignee
合同会社Ｇｅｎｋｅｉ
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Publication date
Application filed by 合同会社Ｇｅｎｋｅｉ filed Critical 合同会社Ｇｅｎｋｅｉ
Publication of WO2016052228A1 publication Critical patent/WO2016052228A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor

Definitions

  • the present invention relates to an injection head provided in a 3D printer (3D modeling apparatus).
  • a plurality of injection nozzles for injecting a material for three-dimensional modeling (such as a plastic material) is attached to the injection head of the present invention.
  • the injection head of the present invention is controlled to move by an actuator or the like included in the 3D printer so that a desired three-dimensional object can be formed by the material injected from the injection nozzle.
  • the injection head of the present invention has a function capable of switching an injection nozzle for injecting a material.
  • a 3D printer (three-dimensional modeling apparatus) that models an actual three-dimensional object based on 3D data generated by computer graphics.
  • a 3D printer sets 3D data, which is basic data of a three-dimensional object, to an arbitrary posture on a computer screen, and a cross section cut along a plurality of surfaces parallel to the height direction based on the set posture.
  • Each two-dimensional data is generated.
  • the 3D printer sequentially stacks a material for three-dimensional modeling (for example, a plastic material) at a position specified by the orthogonal coordinate system of the X axis, the Y axis, and the Z axis based on the two-dimensional data regarding each layer.
  • Three-dimensional modeling is performed accordingly.
  • additive manufacturing is known as a technique for modeling three-dimensional solid objects. Yes.
  • three-dimensional CAD data of a three-dimensional object is sliced, a thin plate is superimposed on the original data for manufacturing, and a prototype such as a plastic material is stacked.
  • the 3D printer is effectively used.
  • the additive manufacturing method using a thermoplastic resin material includes an inkjet method in which a liquid resin is cured by irradiating ultraviolet rays or the like, and an FDM method in which a liquid resin melted by heat is stacked while being cooled (Fused) Deposition (Modeling) is known.
  • Patent Document 1 a 3D printer provided with a plurality of injection nozzles for injecting different materials in order to vary the color and physical properties of a three-dimensional object depending on the part.
  • Patent Document 1 a plurality of injection nozzles are attached in parallel to an injection head whose movement is controlled by an actuator.
  • the conventional 3D printer selects an injection nozzle that injects a material in accordance with 3D data that is the basis of a stereoscopic image, and performs fine adjustment to move the selected injection nozzle to an appropriate position, and then the injection nozzle.
  • the material is controlled to be ejected from.
  • the discharge ports of the injection nozzles are respectively in the plane direction (XY). It is located at a different position in the two-dimensional direction of the axis. For this reason, when switching the material to be ejected, the conventional 3D printer needs to control the movement of the entire ejection head in order to position the selected ejection nozzle at an appropriate position after selecting the ejection nozzle. .
  • the material A is injected up to the switching point ⁇ by the first injection nozzle, and then the material by the second injection nozzle. B injection starts.
  • the discharge port of the first injection nozzle is positioned at the switching point ⁇ , but the discharge port of the second injection nozzle is not positioned at the switching point ⁇ .
  • the movement of the entire injection head is controlled when switching the injection nozzle, it is necessary to program the movement distance of the injection head in advance, which causes a problem that the movement control becomes complicated.
  • the movement distance when switching from the first injection nozzle to the second injection nozzle and the movement distance when switching from the first injection nozzle to the third injection nozzle may be required.
  • the processing at the time of switching the injection nozzle is made dependent on software, the movement control becomes complicated, and if the program is wrong, the entire 3D printer malfunctions.
  • a first object of the present invention is to make it possible to instantaneously perform the switching operation of the material to be injected without moving the injection head to which a plurality of injection nozzles are attached.
  • a second object of the present invention is to avoid a situation in which an injection nozzle collides with a material that has been injected and stacked, or a different material is inadvertently mixed.
  • the present invention provides means for achieving at least one of the first and second objects described above.
  • the inventor of the present invention diligently studied the means for solving the problems of the conventional invention, and as a result, a plurality of injection nozzles are attached to a turntable, and the turntable is rotated by a servo mechanism, so that it can be used for a 3D printer. It was found that the injection head can be provided with a function for switching the position of the injection nozzle. In this way, by switching the position of the injection nozzle by rotating the turntable, the material to be injected can be instantaneously switched without controlling the movement of the entire injection head. In addition, by rotating the turntable so that the height of the injection nozzle changes, it is possible to avoid a situation where the tip of the injection nozzle collides with the stacked material or an inadvertent mixing of different materials.
  • the inventor has conceived that the problems of the prior art can be solved based on the above knowledge, and has completed the present invention. More specifically, the present invention has the following configuration.
  • the present invention relates to an ejection head 100 for a 3D printer.
  • the injection head 100 of the present invention is attached with a plurality of injection nozzles 1a, 1b... For injecting a material for three-dimensional modeling.
  • the injection head 100 is controlled to move by an actuator or the like provided in the 3D printer so as to form a desired three-dimensional object.
  • the ejection head 100 includes a turntable 10, a fixed base 20, and a servo mechanism 30.
  • the turntable 10 is a member in which a plurality of attachment portions 11a, 11b,... For attaching a plurality of injection nozzles 1a, 1b,.
  • the fixed base 20 is a member to which the rotary base 10 is rotatably fixed.
  • the servo mechanism 30 is a mechanism for performing control to switch the injection nozzles 1a, 1b... Positioned at the injection position by rotating the turntable 10 by a predetermined angle.
  • the injection head 100 of the present invention can switch the injection nozzles 1a, 1b,... For injecting the material for three-dimensional modeling by rotating the turntable 10 by the servo mechanism 30. For this reason, by using the injection head 100 of the present invention, an appropriate injection nozzle can be arranged at an appropriate position by simply rotating the turntable 10 when switching the material to be injected. That is, in the present invention, unlike the conventional invention, it is not necessary to control the movement of the entire injection head in order to position the injection nozzle at an appropriate position.
  • the material A is injected up to the switching point ⁇ by the first injection nozzle 1a, and then the second injection nozzle 1b.
  • the injection of the material B is started.
  • the discharge port of the first injection nozzle 1a is positioned at the switching point ⁇ , but the discharge port of the second injection nozzle 1b is not positioned at the switching point ⁇ . Therefore, in the present invention, the second injection nozzle 1b is instantaneously positioned at the switching point ⁇ by rotating the turntable 10.
  • the present invention employs a rotating structure, there is no movement switching time of the injection head 100, switching operation at zero distance is possible, and further, software dependency of movement distance control is reduced. Can do.
  • each of the plurality of injection nozzles 1a, 1b,... Preferably injects a material along the same straight line.
  • the injection nozzle selected to inject the material is moved to a certain injection position by the rotation of the turntable 10.
  • the plurality of injection nozzles are positioned at the injection positions at different timings, but all the injection nozzles positioned at the injection positions inject the material along the same straight line.
  • the turntable 10 has a shape in which the other adjacent mounting portions 11a, 11b,... Are inclined at a predetermined angle upward with respect to the mounting portions 11a, 11b,. It is preferable to do it.
  • the mounting heights of the injection nozzles 1a, 1b... By the mounting portions 11a, 11b of the turntable 10 are varied. As a result, it is possible to avoid a situation in which the material that has been injected and stacked and the tip of the injection nozzle that has not been injected cause a collision. Further, by preventing collision between the stacked material and the injection nozzle, it is possible to reduce the possibility that unnecessary materials are mixed with the stacked material. As a result, by using the injection head 100 of the present invention, a three-dimensional object according to 3D data can be formed more accurately.
  • the turntable 10 has a central portion 12 connected to a plurality of mounting portions 11a, 11b,...
  • the rotation axis of the turntable 10 is inclined at a predetermined angle with respect to the vertical direction because the center portion 12 is inclined.
  • the turntable 10 has turntable magnetic materials 14a, 14b ... corresponding to the mounting portions 11a, 11b ..., and the fixed table 20 is attached to the turntable magnetic materials 14a, 14b .... It is preferable to have the magnetic material 24 for a fixed base to adsorb.
  • the rotating table magnetic materials 14a, 14b, etc. corresponding to the mounting portions 11a, 11b,. It is preferable.
  • a permanent magnet, an electromagnet, or a ferromagnetic material such as iron may be used.
  • the switching operation of the material to be injected can be performed instantaneously without moving the injection head to which a plurality of injection nozzles are attached.
  • FIG. 1 is a perspective view showing an injection head according to an embodiment of the present invention.
  • FIG. 2 is a schematic view showing a state where the injection nozzle for injecting the material is switched by the injection head.
  • FIG. 3 is a perspective view and a plan view showing the operation of the injection head.
  • FIG. 4 is a perspective view and a side view showing a structure in which a turntable, a fixed base, and a base are extracted conceptually.
  • FIG. 5 is a cross-sectional view of a structure in which a turntable, a fixed base, and a base are extracted.
  • FIG. 6 is a perspective view showing an example of an ejection head according to another embodiment.
  • the present invention relates to an injection head 100 provided in a 3D printer.
  • 1 to 5 show examples of the configuration of an ejection head 100 according to an embodiment of the present invention.
  • FIG. 1 shows a state where a plurality of injection nozzles 1 a, 1 b and 1 c are attached to the injection head 100.
  • a maximum of three injection nozzles 1a, 1b, and 1c can be attached to the injection head 100.
  • an injection head 100 according to the present invention is a member for bundling and holding a plurality of injection nozzles 1a to 1c.
  • the injection head 100 according to the present invention can switch the positions of the plurality of injection nozzles 1a to 1c, and can fix one of them at an injection position suitable for the injection of the material.
  • each of the injection nozzles 1a to 1c is preferably one that injects a different material from its discharge port. Note that the present invention is directed to the injection head 100, and the injection nozzles 1a to 1c attached to the injection head 100 are not a constituent feature of the present invention.
  • a known material used in a general 3D printer can be used as a material for three-dimensional modeling supplied to the injection nozzles 1a to 1c.
  • a liquid resin having a property of being cured by ultraviolet rays or the like may be supplied to the injection nozzles 1a to 1c as a material for three-dimensional modeling.
  • the inkjet 3D printer may include an irradiation device (not shown) for emitting ultraviolet rays that cure the resin material.
  • a heat-melted liquid resin may be supplied to the injection nozzles 1a to 1c as a material for three-dimensional modeling.
  • the FMD 3D printer includes a heating device (not shown) for heating the resin material and a cooling device (not shown) for cooling the thermally melted resin material. It may be.
  • the movement of the injection head 100 according to the present invention is controlled by an actuator (not shown) provided in the 3D printer in order to adjust the position at which the material is injected from the injection nozzles 1a to 1c. That is, the injection head 100 of the present invention is based on CAD data that is the basis of three-dimensional molding, and is moved in the left-right direction (X-axis direction), depth direction (Y-axis direction), and vertical direction (Z-axis direction) by an actuator. Move controlled.
  • the actuator can adopt a known structure as appropriate. For example, the actuator may control the movement of the injection head 100 in the X-axis, Y-axis, and Z-axis directions.
  • the actuator may be one that moves the injection head 100 in the X-axis and Y-axis directions and moves a stage (not shown) on which the resin material is laminated in the Z-axis direction. Further, for example, the actuator may move the injection head 100 in the X-axis and Z-axis directions and move the stage on which the resin material is laminated in the Y-axis direction.
  • the structure of the 3D printer itself is not particularly limited, and the ejection head 100 of the present invention can be appropriately attached to a known 3D printer.
  • the injection head 100 of the present invention basically includes a rotating table 10, a fixed table 20, a servo mechanism 30, and a base 40.
  • the base 40 is connected to an actuator of a 3D printer.
  • the base 40 is formed in an L shape, the fixed base 20 is attached to the bottom wall 41, and the servo mechanism 30 is attached to the side wall 42.
  • the turntable 10 is fixed to the fixed base 20 so as to be rotatable.
  • a plurality of injection nozzles 1a to 1c can be attached to the turntable 10.
  • the base 40 is moved via the actuator, so that the rotary base 10, the fixed base 20, the servo mechanism 30, and the plurality of injection nozzles 1a to 1c mounted on the base 40 are entirely provided. It is designed to move.
  • the configuration of each part of the injection head 100 according to the present invention will be specifically described.
  • the turntable 10 is a member for mounting a plurality of injection nozzles 1a to 1c.
  • FIG. 4 shows the state of the turntable 10 before the injection nozzles 1a to 1c are attached.
  • the turntable 10 includes a plurality of mounting portions 11a, 11b, and 11c, a center portion 12, and a plurality of auxiliary portions 13a, 13b, and 13c. ing.
  • the turntable 10 is rotatably fixed to the fixed stand 20 at the center portion 12.
  • a plurality of attachment portions 11a to 11c extend from the center portion 12 toward the front end side with a predetermined angular interval.
  • a plurality of auxiliary portions 13a to 13c extend from the center portion 12 toward the rear end side (the side opposite to the extending direction of the attachment portions 11a to 11c) with a predetermined angular interval.
  • the attachment portions 11a to 11c are formed at three locations according to the number of the injection nozzles 1a to 1c.
  • the auxiliary portions 13a to 13c are provided at three locations in accordance with the number of the attaching portions 11a to 11c.
  • the turntable 10 has a shape in which the plurality of attachment portions 11a to 11c and the plurality of auxiliary portions 13a to 13c extend approximately radially from the center portion 12 as a center.
  • a plurality of injection nozzles 1a to 1c are attached to the plurality of attachment portions 11a to 11c, respectively.
  • screw holes may be formed in the attachment portions 11a to 11c.
  • the mounting portions 11a to 11c preferably hold the injection nozzles 1a to 1c so that the injection directions of the injection nozzles 1a to 1c coincide with the vertical direction.
  • the central portion 12 is connected to one end portions of a plurality of attachment portions 11a to 11c. As shown in FIG. 4, the turntable 10 is rotatably fixed to the fixed stand 20 at the central portion 12. For this reason, the rotation axis (R) of the turntable 10 passes through the central portion 12.
  • the central portion 12 is connected to one end portions of the plurality of auxiliary portions 13a to 13c.
  • the plurality of attachment portions 11a to 11c and the plurality of auxiliary portions 13a to 13c are formed in three places (6 places in total), so that the central portion 12 is an approximately hexagonal region. ing.
  • the auxiliary units 13 a to 13 c are parts for assisting the operation of the turntable 10.
  • the plurality of auxiliary portions 13a to 13c are provided corresponding to the plurality of attachment portions 11a to 11c, respectively.
  • the first auxiliary portion 13a is positioned on a straight line passing through the first attachment portion 11a and the center portion 12.
  • the second auxiliary portion 13b is positioned on a straight line passing through the second attachment portion 11b and the center portion 12.
  • the third auxiliary portion 13 c is located on a straight line passing through the third attachment portion 11 c and the center portion 12.
  • the auxiliary portions 13a to 13c are provided on the same straight line as the corresponding mounting portions 11a to 11c.
  • turntable magnetic materials 14a to 14c are attached to the auxiliary portions 13a to 13c, respectively.
  • the fixed base 20 is a member to which the rotary base 10 is rotatably attached. Specifically, the center 12 of the turntable 10 is fixed to the fixed base 20.
  • the fixed base 20 is divided into a fixed portion 21 and a base portion 22.
  • the fixed part 21 of the fixed base 20 is a part where the central part 12 of the rotary base 10 is rotatably fixed.
  • the base portion 22 of the fixed base 20 is a part that is fixed to the base 40 in a stationary manner. As described above, the fixed base 20 plays a role of relaying between the rotary base 10 and the base 40.
  • the servo mechanism 30 is a mechanism for rotating the turntable 10 by a predetermined angle.
  • FIG. 3 shows an operation example of the servo mechanism 30.
  • the servo mechanism 30 rotates the turntable 10 by a predetermined angle, so that the positions of the injection nozzles 1a to 1c attached to the turntable 10 are changed.
  • the injection position is a position specified as a position for injecting a material in the design of the 3D printer.
  • a three-dimensional object designed by CAD data can be accurately modeled by injecting the material from the injection nozzles 1a to 1c located at the injection position.
  • the turntable 10 preferably has a shape capable of holding the injection nozzles 1a to 1c so that the material is injected vertically from the injection nozzles 1a to 1c located at the injection position.
  • the servo mechanism 30 switches the injection nozzle located at the injection position among the plurality of injection nozzles 1a to 1c by rotating the turntable 10 by a predetermined angle.
  • the servo mechanism 30 includes a servo motor 31, a crank 32, and a rod 33 in the present embodiment.
  • the servo motor 31 is a member that converts electrical energy supplied from a battery (not shown) into mechanical rotational motion (rotational energy).
  • a crank 32 is fixed to the tip of the rotation shaft of the servo motor 31 so as not to rotate.
  • the crank 32 is a member that rotates clockwise or counterclockwise according to the rotation of the servo motor 31.
  • One end of the crank 32 is fixed to the rotation shaft of the servo motor 31 so as not to rotate, and the other end of the crank 32 is connected to a rod (connecting rod) 33 so as to be rotatable.
  • the rod 33 is a member for transmitting the rotary motion of the servo motor 31 and the crank 32 to the turntable 10.
  • One end of the rod 33 is rotatably connected to the crank 32, and the other end of the rod 33 is rotatably connected to an arbitrary part of the turntable 10.
  • the servo motor 31 rotates, the distance and positional relationship between the crank 32 and the turntable 10 change relatively.
  • the length of the rod 33 connecting the crank 32 and the turntable 10 is unchanged. Therefore, by rotating the servo motor 31 and adjusting the position of the crank 32, the posture (rotation angle) of the turntable 10 can be controlled via the rod 33.
  • the servo mechanism 30 can perform control to rotate the turntable 10 by a predetermined angle.
  • FIG. 2 (a) and 3 (a) show a state in which the first injection nozzle 1a is located at the injection position
  • FIGS. 2 (b) and 3 (b) show the second injection nozzle 1b
  • 2 (c) and FIG. 3 (c) show a state where the third injection nozzle 1c is located at the injection position.
  • the material A is injected from the first injection nozzle 1a
  • the material B is injected from the second injection nozzle 1b
  • the material C is injected from the third injection nozzle 1c. Yes.
  • the material A can be injected vertically from the first injection nozzle 1a in a state where the first injection nozzle 1a is located at the injection position. it can.
  • the material A can be stacked to form a part of a three-dimensional object.
  • the rotary base 10 is rotated using the servo mechanism 30 to switch the positions of the injection nozzles 1a to 1c, and the second injection is performed.
  • the nozzle 1b is positioned at the injection position.
  • the material B can be injected vertically from the second injection nozzle 1b.
  • the rotary base 10 is rotated using the servo mechanism 30 to switch the positions of the injection nozzles 1a to 1c, and the third injection is performed.
  • the nozzle 1c is positioned at the injection position.
  • the material C can be injected vertically from the third injection nozzle 1c.
  • the injection head 100 of the present invention basically switches the positions of the injection nozzles 1a to 1c for injecting a material by the above-described configuration and operation.
  • By rotating the turntable 10 and switching the injection nozzles 1a to 1c it is possible to position the discharge port of the injection nozzle before switching and the discharge port of the injection nozzle after switching at substantially the same position. .
  • the operation of switching the material to be injected only needs to rotate the turntable 10 by a predetermined angle, so that it is not necessary to move the entire injection head 100. Thereby, the material to be injected can be switched efficiently and quickly.
  • the turntable 10 has a special shape that is three-dimensionally inclined (raised) rather than a flat plane.
  • the plurality of mounting portions 11a to 11c of the turntable 10 have different heights and angles for holding the injection nozzles 1a to 1c, respectively. That is, as shown in FIG. 2, the turntable 10 has a shape in which the other mounting portions 11a to 11c are inclined upward by a predetermined angle with respect to the mounting portions 11a to 11c located at the injection position.
  • the angle at which the attachment portion adjacent to the attachment portion located at the injection position is inclined upward may be 3 to 60 degrees, 5 to 45 degrees, or 10 to 30 degrees. .
  • the first mounting portion 11a that holds the first injection nozzle 1a is located at the injection position.
  • the second mounting portion 11b and the third mounting portion 11c are inclined upward with respect to the first mounting portion 11a located at the injection position.
  • the second mounting portion 11b that holds the second injection nozzle 1b is located at the injection position.
  • the first attachment portion 11a and the third attachment portion 11c are inclined upward with respect to the second attachment portion 11b located at the injection position.
  • the third attachment portion 11c that holds the third injection nozzle 1c is located at the injection position.
  • the first mounting portion 11a and the second mounting portion 11b are inclined upward with respect to the third mounting portion 11c located at the injection position.
  • the injection nozzles 1a to 1c attached by these attachment portions 11a to 11c are developed in a three-dimensional direction, and each has a height and an angle. Will be different. Therefore, for example, in a state where the material A is being injected by the first injection nozzle 1a, it is possible to avoid a situation in which the other injection nozzles 1b and 1c collide with the stacked material.
  • FIG. 5 conceptually shows a cross-sectional shape of a part of the structure shown in FIG.
  • the central portion 12 of the turntable 10 and the fixed portion 21 of the fixed base 20 are fixed to each other while being inclined with respect to the vertical direction.
  • a fixing rod 23 that passes through the center portion 12 of the turntable 10 and the fixing portion 21 of the fixing stand 20 and fixes both of them rotatably is inclined.
  • the rotation axis (R) of the turntable 10 is inclined at a predetermined angle ( ⁇ ) with respect to the vertical direction.
  • the rotation axis (R) of the turntable 10 tilts toward the front end side where the injection nozzle is fixed.
  • the inclination angle ( ⁇ ) of the rotation axis (R) of the turntable 10 with respect to the vertical direction is preferably, for example, 3 ° to 45 °, or 5 ° to 30 °, and particularly preferably 10 ° to 20 °. preferable.
  • the turntable 10 is inclined at the center portion 12, whereas the mounting portion 11 located at the injection position and the auxiliary portion 13 corresponding thereto are on the ground (material is laminated).
  • the plate extends parallel to the plate.
  • the attachment part 11 located in an injection position can hold
  • the injection direction hereinafter referred to as “injection shaft” by the injection nozzle held by the mounting portion 11 located at the injection position is indicated by the symbol I.
  • the turntable 10 has a shape in which a plurality of mounting portions 11a to 11c are inclined. Nevertheless, by tilting the rotation axis (R) of the turntable 10 toward the front end side, as shown in FIG. 4, which of the mounting portions 11a to 11c is located at the injection position.
  • the injection axis (I) of the injection nozzle and the injection height can be kept constant.
  • the injection nozzle is changed before and after switching of the injection nozzle.
  • the position at which the material is discharged from can be kept constant. That is, the position and height of the ejection port of the injection nozzle before switching and the ejection port of the injection nozzle after switching can be kept constant. For this reason, when the injection nozzle is switched, there is no need to move the entire injection head 100 and finely adjust the discharge position of the material by the changed injection nozzle. This makes it possible to inject the material more smoothly and continuously.
  • the plurality of auxiliary portions 13a to 13c of the turntable 10 are provided with turntable magnetic materials 14a, 14b, and 14c, respectively.
  • a fixing base magnetic material 24 is attached to the base portion 22 of the fixing base 20.
  • rotating table magnetic materials 14a to 14c and fixed table magnetic material 24 members that are attracted (attracted) by magnetic force are selected.
  • both the rotating base magnetic materials 14a to 14c and the fixed base magnetic material 24 may be permanent magnets, or one may be a permanent magnet and the other may be a metal having ferromagnetism such as iron. It is also possible to employ electromagnets as the magnetic materials 14a to 14c for the rotary table and the magnetic material 24 for the fixed table.
  • the plurality of auxiliary portions 13a to 13c are provided corresponding to the plurality of mounting portions 11a to 11c for mounting the injection nozzles 1a to 1c.
  • assistant part 13a located on the extension line of this 1st attaching part 11a The object 14 a is attracted to the magnetic material 24 for the fixing table provided on the fixing table 20.
  • the second attachment portion 11b is located at the injection position, the second turntable provided in the second auxiliary portion 13b located on the extension line of the second attachment portion 11b.
  • the magnetic material 14b is attracted to the magnetic material 24 for the fixing base provided on the fixing base 20.
  • the magnetic parts 14a to 14c for the rotary table are provided on the auxiliary parts 13a to 13c of the rotary base 10 and the magnetic substance 24 for the fixed base is provided on the base part 22 of the fixed base 20, so that these magnetic substances are provided.
  • the state where the attachment portions 11a to 11c are located at the injection position can be stabilized by using the suction force. That is, in the state where the magnetic materials 14a to 14c for the rotary table and the magnetic material 24 for the fixed table are attracted, the mounting portions 11a to 11c are stabilized at the injection position.
  • pouring position blur Even if it exists, it can prevent that the attaching parts 11a-11c located in an injection
  • FIG. 6 shows an embodiment different from the embodiment described in FIGS.
  • the injection head 100 according to the present invention may have a structure to which two injection nozzles 1a and 1b are attached.
  • the injection head 100 according to the present invention may have a structure to which four injection nozzles 1a, 1b, 1c, and 1d are attached.
  • the injection head 100 according to the present invention may have a structure in which five or more injection nozzles are attached.

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Abstract

[Problème] Dans une imprimante 3D, changer instantanément la matière première à éjecter sans déplacer une tête d'éjection sur laquelle de multiples buses d'éjection sont montées. [Solution] La présente invention concerne une tête d'injection d'imprimante 3D (100) sur laquelle de multiples buses d'éjection (1a, 1b …) pour l'éjection de matière première pour une fabrication en trois dimensions sont montées et dont le mouvement est commandé de façon à fabriquer un objet tridimensionnel souhaité. La présente invention est équipée : d'un bloc de montage rotatif (10) pourvu de multiples parties de montage (11a, 11b...) pour monter les multiples buses d'éjection (1a, 1b …) à des intervalles angulaires; un bloc de montage fixe (20)sur lequel le bloc de montage rotatif (10) est fixé de permettant de changer la buse d'éjection (1a, 1b …) positionnée au niveau de la position d'éjection par rotation du bloc de montage rotatif (10) selon un angle prescrit.
PCT/JP2015/076470 2014-09-30 2015-09-17 Tête d'éjection d'imprimante 3d WO2016052228A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014200487A JP5950421B2 (ja) 2014-09-30 2014-09-30 ３ｄプリンタ用射出ヘッド
JP2014-200487 2014-09-30

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WO2016052228A1 true WO2016052228A1 (fr) 2016-04-07

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CN105946233A (zh) * 2016-06-17 2016-09-21 季鹏凯 多喷嘴3d打印喷头及打印方法及3d打印机
CN107364117A (zh) * 2017-09-12 2017-11-21 牛翠芹 一种采用双喷头技术的打印流畅的高精度3d打印机
DE102016213439A1 (de) 2016-07-22 2018-01-25 Robert Bosch Gmbh Extruder für 3D-Drucker mit variablem Materialdurchsatz
WO2018205149A1 (fr) * 2017-05-09 2018-11-15 黄卫东 Tête d'impression 3d, dispositif d'impression 3d, procédé de commande pour tête d'impression 3d
CN109435474A (zh) * 2018-09-11 2019-03-08 华中科技大学 一种具有多电极环电场控制功能的多喷嘴联合电喷印喷头
CN109664505A (zh) * 2019-01-15 2019-04-23 广州市妙伊莲科技有限公司 一种具有定量控制和切换功能的高效型3d打印机
CN111376475A (zh) * 2018-12-27 2020-07-07 精工爱普生株式会社 三维造型装置
CN112519204A (zh) * 2019-09-17 2021-03-19 三纬国际立体列印科技股份有限公司 喷嘴可电动升降的3d打印头
CN114833914A (zh) * 2022-07-01 2022-08-02 华南理工大学 一种用于智能建造的3d打印机械臂及其使用方法
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KR101974398B1 (ko) * 2018-11-16 2019-05-02 (주)세기산업 콘크리트 구조물 제조장치 및 그 노즐
JP7172566B2 (ja) 2018-12-21 2022-11-16 セイコーエプソン株式会社 三次元造形装置、および、三次元造形物の製造方法
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KR102464241B1 (ko) * 2021-06-14 2022-11-07 김주용 멀티 3ｄ 프린터

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Cited By (16)

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Publication number Priority date Publication date Assignee Title
CN105922579A (zh) * 2016-04-26 2016-09-07 杭州研智科技有限公司 3d打印机喷头结构
CN105946233A (zh) * 2016-06-17 2016-09-21 季鹏凯 多喷嘴3d打印喷头及打印方法及3d打印机
US10894359B2 (en) 2016-07-22 2021-01-19 Robert Bosch Gmbh Extruder for a 3D printer with a variable material throughput
DE102016213439A1 (de) 2016-07-22 2018-01-25 Robert Bosch Gmbh Extruder für 3D-Drucker mit variablem Materialdurchsatz
WO2018015092A1 (fr) 2016-07-22 2018-01-25 Robert Bosch Gmbh Extrudeuse pour une imprimante 3d présentant un débit variable de matière
US11104070B2 (en) 2017-05-09 2021-08-31 Weidong Huang 3D printing head, 3D printing device and control method of 3D printing head
WO2018205149A1 (fr) * 2017-05-09 2018-11-15 黄卫东 Tête d'impression 3d, dispositif d'impression 3d, procédé de commande pour tête d'impression 3d
CN107364117A (zh) * 2017-09-12 2017-11-21 牛翠芹 一种采用双喷头技术的打印流畅的高精度3d打印机
CN109435474A (zh) * 2018-09-11 2019-03-08 华中科技大学 一种具有多电极环电场控制功能的多喷嘴联合电喷印喷头
CN109435474B (zh) * 2018-09-11 2019-11-12 华中科技大学 一种具有多电极环电场控制功能的多喷嘴联合电喷印喷头
CN111376475A (zh) * 2018-12-27 2020-07-07 精工爱普生株式会社 三维造型装置
CN109664505A (zh) * 2019-01-15 2019-04-23 广州市妙伊莲科技有限公司 一种具有定量控制和切换功能的高效型3d打印机
US11865776B2 (en) * 2019-06-18 2024-01-09 Rem3dy Health Limited 3D printer
CN112519204A (zh) * 2019-09-17 2021-03-19 三纬国际立体列印科技股份有限公司 喷嘴可电动升降的3d打印头
CN114833914A (zh) * 2022-07-01 2022-08-02 华南理工大学 一种用于智能建造的3d打印机械臂及其使用方法
CN114833914B (zh) * 2022-07-01 2022-09-06 华南理工大学 一种用于智能建造的3d打印机械臂及其使用方法

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