JPH09323361A - Device for molding three-dimensional object - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten a time required for molding a three-dimensional object and dispense with a shaping operation as a fabricating procedure by supplying a molding material dissolved from a nozzle which is movable in a single axial to the surface of a working table which is rotated, moving vertically and controlling the working table and a nozzle based on the three-dimensional graphic data of the three-dimensional object to be molded. SOLUTION: When a work support 3 as a whole is rotated by a roller 9, a working table 5 is rotated at its own elevation, and at the same time, a dissolved wax begins to be supplied to the surface of the working table 5 from a nozzle 19. In this case, the working table 5 makes a single round of rotation following the movement of the work support 3, and the amount of the wax equivalent to the single round of rotation is fixed to the working table 5 to form an initial horizontal layer. Next, when the roller 9 is separated from the work support 33, a roller 7 for driving the working table 5 is moved to come into contact with the working table 5. On the other hand, the working table 5 continuously descends and during this period, the wax continues to be supplied from the nozzle 19 and is stacked on the previous layer, spiraling on the working table 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional object molding apparatus for supplying a molding material to a working table under computer control and laminating it to form a three-dimensional object.

[0002]

2. Description of the Related Art A three-dimensional object forming apparatus is used in various fields for producing a three-dimensional model, that is, for designing a product, designing, experimenting, making a mold, or as a prototype of a product. Used in. As such a three-dimensional molding apparatus, there is a three-dimensional molding apparatus disclosed in Japanese Patent Publication No. 5-11751. In this device, the mechanical operation of each part is controlled by a computer, and the computer supplies nozzles for supplying the molding material to the moving table side with respect to the moving table that can be moved arbitrarily within a plane range. It moves in the X, Y, and Z directions according to the stored data, and the molding material supplied from the nozzle is layered step by step. Further, conventionally, a so-called stereolithography apparatus has also been proposed. In this apparatus, the surface of a photocurable resin placed on a vertically movable movable table is scanned and exposed by a laser scanner movable in the X and Y directions to cure the solidified layers one by one. It is designed to be laminated.

[0003]

In these conventional three-dimensional object molding apparatuses, as described above, the molding materials are laminated one by one.
Since it is performed step by step, the speed of molding the desired three-dimensional object is slow and the molding time is long, and since the molding material can be connected to each laminated layer, the post-processing work of grinding and removing it can be performed. What is needed, and when laminating, if the temperature of the already solidified layer and the layer of the newly supplied molding material is not precisely controlled, the welding of both layers will be incomplete, so that Since the entire device must be placed in a greenhouse, and the nozzles that process the molding material are controlled to move in two or three axes, the number of component parts of the entire device increases and the mechanism and operation become complicated. ,
Only a specialized engineer who has three-dimensional design knowledge and experience and who has mastered one to three years can mold a three-dimensional object with a predetermined accuracy and shape, especially regarding the latter device, The entire device is extremely expensive, the molding material itself is special and expensive, and the running cost is high because the molding material is used in an amount larger than that required for molding the three-dimensional object due to the molding method. In addition, since the apparatus itself and the molding material are expensive, there is no large-scale apparatus for molding a large three-dimensional object, and as a result, various problems such as that the three-dimensional object to be molded is restricted to a small one, etc. there were.

The present invention has been made to solve the above-mentioned problems and to bring about unique and useful effects. That is, firstly, the present invention enables the molding time of the three-dimensional object to be significantly shortened and the joint as described above in the three-dimensional object cannot be formed, so that the shaping operation as the subsequent processing is unnecessary, and , A simple structure that can be easily operated by anyone, the overall cost of the device and the running cost can be reduced, and a large-scale device that can mold a large solid object can be realized. The purpose is to provide a device.

A second object of the present invention is to achieve a first object and to provide a three-dimensional object molding apparatus capable of uniforming the thickness, strength and accuracy of the contour portion of the three-dimensional object.

A third object of the present invention is to provide a three-dimensional object molding apparatus which achieves the above-mentioned second object and can cope with the molding of a contour portion where the angle changes abruptly.

Fourthly, the present invention achieves the first object, and can reliably weld the overlapping portion of the molding material supplied from the nozzle without the need for precise temperature control, thus keeping the greenhouse. It is an object of the present invention to provide a three-dimensional object molding apparatus that eliminates the need for.

Fifthly, the present invention provides a three-dimensional object molding apparatus which achieves the above-mentioned second object and which can mold a three-dimensional object having high lamination strength without precise temperature control by a greenhouse. The purpose is to do.

A sixth object of the present invention is to provide a three-dimensional object molding apparatus capable of simultaneously achieving all of the first to fifth objects.

[0010]

In order to achieve the above-mentioned object, a three-dimensional object molding apparatus according to the present invention is characterized by having the following structure. That is, the present invention is, firstly, a processing table that is continuously movable in the vertical direction while rotating, and a nozzle that is movable in one axial direction to supply a molten molding material onto the processing table. It is characterized by comprising a computer for controlling the operation of the working table and the nozzle based on the three-dimensional graphic data of the three-dimensional object to be molded.

Secondly, according to the present invention, a working table which is continuously movable in the vertical direction while being rotated, and one axially movable nozzle which supplies the melted molding material onto the working table. A computer for controlling the operation of the working table and the nozzle based on the three-dimensional graphic data of the three-dimensional object to be molded, and the nozzle is always the three-dimensional object based on a command from the computer. The angle is automatically adjusted so as to supply the molding material in a direction parallel to the tangent line of the contour line.

Thirdly, according to the present invention, a working table which can be continuously moved in the vertical direction while rotating, and an axially movable nozzle which supplies a molten molding material onto the working table. A computer for controlling the operation of the working table and the nozzle based on the three-dimensional graphic data of the three-dimensional object to be molded, and the nozzle is always the three-dimensional object based on a command from the computer. The angle is automatically adjusted so as to supply the molding material in a direction parallel to the tangent line of the contour line, and the material supply port in the nozzle is rectangular, and its long side is perpendicular to the tangent line. It is characterized by eggplant.

Fourthly, according to the present invention, there is provided a working table which is continuously movable in the vertical direction while rotating, and one axially movable nozzle which supplies the melted molding material onto the working table. A computer that controls the operation of the processing table and the nozzle based on the three-dimensional graphic data of the three-dimensional object to be molded, and has already been supplied from the nozzle and cured in front of the nozzle. A trowel for heating and melting the molding material is provided.

Fifth, according to the present invention, there is provided a processing table which is continuously movable in the vertical direction while rotating, and an axially movable nozzle which supplies the melted molding material onto the processing table. A computer for controlling the operation of the working table and the nozzle based on the three-dimensional graphic data of the three-dimensional object to be molded, and the nozzle is always the three-dimensional object based on a command from the computer. The angle is automatically adjusted so as to supply the molding material in a direction parallel to the tangent line of the contour line, and the molding material which is already supplied from the nozzle and hardened is heated and melted in front of the nozzle. It is characterized in that a trowel is provided.

Sixth, according to the present invention, there is provided a working table which is continuously movable in the vertical direction while rotating, and one axially movable nozzle which supplies the melted molding material onto the working table. A computer for controlling the operation of the processing table and the nozzle based on the three-dimensional graphic data of the three-dimensional object to be molded, and the nozzle is configured so that the contour line of the three-dimensional object is constantly generated based on a command from the computer. The angle is automatically adjusted so as to supply the molding material in a direction parallel to the tangent line, and the material supply port in the nozzle is rectangular, and its long side is perpendicular to the tangent line. In addition, a trowel that heats and melts the molding material that has been already supplied and cured from the nozzle is disposed in front of the nozzle.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings. For convenience of description, in the following description, an apparatus including the first to sixth inventions is shown.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 is a base, and a bearing 2 is provided on the top of the base to form a bottom wall 3A and a cylindrical side wall 3.
A work table support 3 having B is rotatably mounted. A spiral groove 3C is formed in the center of the bottom 3A of the worktable support 3.
Is formed, and the spiral protrusion 4A of the spiral shaft 4 extending in the vertical direction is engaged with the spiral groove 3C. A working table 5 formed, for example, in the shape of a disk is fixed to the upper part of the spiral shaft 4. Therefore, the working table 5 continuously rotates in a vertical direction, that is, a spiral motion while rotating with respect to the working table support 3. You can move while.

A working table driving roller 7 rotatably driven by a motor-driven rotating body (not shown) is rotatably supported on the working table support 3. A rubber coating 7A, for example, is formed on the peripheral surface of the processing table driving roller 7. Since the working table driving roller 7 can be brought into contact with and separated from the peripheral surface 5A of the working table 5 by a slide mechanism (not shown), when the working table driving roller 7 is in contact with the working table 5, the working table driving roller 7 Is transmitted to the processing table 5, so that the processing table 5 can be continuously moved upward or downward while rotating together with the spiral shaft 4. The rotation speed of the processing table driving roller 7 and thus the processing table 5 is appropriately changed according to the shape of the three-dimensional object to be molded.

Further, a roller 9 is provided on the side wall 3B of the worktable support 3 so as to be brought into contact with and separated from the sidewall 3B and driven by a motor (not shown). The roller 9 comes into contact with the side wall 3B when the work table driving roller 7 is separated from the peripheral surface 5A of the work table 5, and when the roller 9 rotates in this state, the entire work table support 3 is formed. Therefore, the processing table 5 can be rotated while maintaining the horizontal position at the same height without the above-described lifting movement.

The operation of these mechanical elements, that is, the contact and separation of the working table driving roller 7 from the working table 5, the rotational driving and the rotational speed,
Operations such as contact / separation of the roller 9 with respect to the worktable support 3 and rotational driving thereof are controlled in conjunction with the operation of a computer described later.

On the other hand, above the processing table 5, the processing table 5 is provided.
A material supply mechanism 10 for supplying a molding material for forming a three-dimensional object to be molded is provided above.
The material supply mechanism 10 includes a tank, a nozzle, a nozzle angle adjusting motor, and a trowel. More specifically, as shown in the enlarged view of FIG. 2, the tank 11 has a cavity 11D formed over a side wall 11B or a bottom wall 11C surrounding a containing portion 11A of the molding material 12, and a liquid filled inside the cavity 11D, for example. The oil 13 is heated by a heater 14 surrounding the oil 13 so that the molding material 12 is melted and kept at a required temperature. Also,
The accommodating portion 11A is provided with a pressure plate 16 as a pressing member for the molding material 12, and by lowering it,
A required pressure is applied to the contained material 12 and a required amount of the melted material 12 is supplied to the processing table 5 from a nozzle described later. Then, the tank 11 is parallel to the processing table 5 (in the direction perpendicular to the paper surface in FIG. 1) by the rotation of a tank drive motor (not shown) along a guide rule (not shown), and as shown in FIG. , Processing table 5
It is possible to move back and forth on one axis 17 that passes through the rotation center point O1 of the above and goes toward the peripheral portion of the processing table 5.

Molding material 12 accommodated in this tank 11
The material is a thermoplastic material that melts when heated and hardens when the temperature decreases, such as wax (wax), paraffin, ABS resin, plastic, earth for ceramics, glass, chocolate, ice cream, candy, etc. It

At the lower part of the tank 11, there is provided a rotating block 18 which is rotatable in a horizontal plane and in which a material flow passage 18A from the tank 11 is formed. At the lower part thereof, there is provided a material flow passage 18A from the accommodating portion 11A. Through molding material 1
A nozzle 19 for supplying 2 to the processing table 5 is attached. Opening 1 as material supply port in nozzle 19
As shown in FIG. 4, 9A has a short side L1 of 1 mm,
The long side L2 is formed to have a rectangular cross section of 3 mm. Since the center O2 of the nozzle 19 is aligned with the vertical center line of the tank 11, the nozzle 19 can move forward and backward along the above-described one axis 17 along with the tank 11. Further, as also shown in FIG. 5, the rotation block 18 is rotated in the range of 0 to 360 degrees by a nozzle angle control roller 20 attached to the tank 11 and rotationally driven by, for example, a motor (not shown) to adjust the angle. At the same time, the nozzle 19 is also rotated in that range so that the angle in the horizontal plane can be changed.

Specifically, the nozzle 19 has a long side L2 of the opening 19A when the molding process of the three-dimensional object is started.
The angle is controlled by the rotation of the nozzle angle control roller 20 so that the molding material is always supplied at a right angle to the tangent of the contour in the horizontal section of the three-dimensional object. That is, for example, when the horizontal cross section of the solid object to be molded as shown in FIG. 6 is elliptical, the processing table 5 rotates clockwise in the figure and the elliptical position changes from the position indicated by the solid line 22 to the chain line. 22A and then to a position indicated by a chain line 22B, that is, for example, A on the contour
A point (a point passing through the minor axis of the ellipse) and a point B (a point passing through points other than the major axis and the minor axis of the ellipse) are rotated by the processing table 5 to cause the nozzle 19 to move.
7A, since the tangent line 23 is perpendicular to the axis line 17 at the point A, the nozzle 19 does not rotate, that is, the angle does not change, and The long side L2 of the opening 19A forms a right angle with the tangent line 23 and maintains its original position, but at the point B, the tangent line 24 is perpendicular to the axis line 17 as shown in FIG. Since the nozzle 19 is rotated by the nozzle angle control roller 20 by an angle corresponding to the inclination, the angle changes and the long side L2 of the opening 19A is tangential line 2.
It makes a right angle to the 4.

The front of the nozzle 19 (the expression "front" means that the position of the nozzle 19 when viewed from the processing table 5 seems to be relatively forward in the direction opposite to the direction of rotation thereof, that is, apparently, The trowel 26 which is heated by a heater (not shown) is provided in the used one. This trowel 26, as shown in FIG.
The purpose is to heat the surface of the lower layer of the molding material 12 that has been supplied and has already been hardened, that is, the surface of the solidified layer 12A, and to ensure welding with the molding material 12B newly delivered from the nozzle 19. . The trowel 26 is integrally provided in proximity to the nozzle 19 via the rotation block 18 so as to follow the above-described change in the angle of the nozzle 19.

The computer 28 (FIG. 1) controls the operation of each of the above mechanical and electrical elements in accordance with the shape of the three-dimensional object to be molded. That is, the computer 28, as a program associated with these operations, draws a contour line on the horizontal plane of the solid body based on the desired three-dimensional shape designed by CAD, that is, the three-dimensional graphic data on the shape of the solid body to be molded. Is formed so as to continue spirally from the lower part to the upper part, and is composed of a spiral data group as processing information, and rotation, ascent and descent of the processing table 5 via the processing table drive roller 7 based on the spiral data. , A program for controlling the movement and angle adjustment of the tank 11 and thus the nozzle 19 on the axis 17, the heating temperature of the molding material 12 and the nozzle 19.
Required programs such as a program for adjusting the pressure of the molding material for adjusting the delivery amount from the mold, a program for adjusting the temperature of the iron 26, and a program for associating these programs with each other are installed.
Further, as will be described later, a program for forming the base portion and the crown portion of the three-dimensional object is also installed.

When an apparatus having such a structure is used to form a pot-shaped three-dimensional object 30 as shown in FIG. 9 as an original model, for example, it is carried out as follows. First, the computer 28 stores required three-dimensional graphic data for this model. Wax is used as the molding material 12. That is, first, for example, when the wax is filled in the tank 11 having the storage capacity of the molding material 12 of 1,000 cc, the wax is heated to 70 to 80 degrees Celsius by the oil 13 whose temperature is raised by energizing the heater 14.
It is in a state where it is dissolved by being kept warm to the nearest degree. Further, pressure is applied to the pressure plate 16 so that the wax is extruded at a maximum of about 300 mm / sec in the case of the nozzle 19 having the opening 19A of 1 × 3 mm. Further, the iron 26 is heated to about 200 degrees Celsius.

In this state, the work table drive roller 7 is initially separated from the work table 5, and the work table support 3 is supported by the roller 9.
The whole is rotated, so that the working table 5 rotates at the same height without ascending or descending, and at the same time, based on the data stored in the computer 28, the melted wax is discharged from the nozzle 19 to the working table 5. Begins to be fed on. At this time, by rotating the processing table support 3 and thus the processing table 5 as it is, the wax is fixed to the processing table 5 for one round of this rotation, and the first horizontal layer is formed. This first layer becomes the base portion 31A of the three-dimensional object to be molded (FIG. 10). The base portion 31A is formed in order to prevent a defect from occurring at the lowermost portion of the desired three-dimensional shape when the three-dimensional object is formed and is removed from the processing table 5 after the molding step is completed. To be resected. The program relating to the formation of the base portion 31A is of course also input to the computer 28.

When the layer as the first base portion 31A is formed, the roller 9 is then moved to the working table support 3
Further away, the worktable drive roller 7 moves and comes into contact with the worktable 5. Then, the working table 5 is continuously lowered while being rotated by the working table driving roller 7, while the wax is continuously supplied from the nozzle 19 continuously, that is, the wax continuously spirals on the working table 5. While drawing, it is layered on the previous layer. That is, the base portion 3
Body portion 31B formed after formation of 1A (FIG. 10)
Is not a layer-by-layer lamination, but is in a state of being continuously connected and laminated like a single stroke by spiral data.

While the wax is continuously supplied in this manner, the tank 11 and thus the nozzle 19 are connected to the model 3
A required amount is moved on the axis line 17 in accordance with the dimension data. In addition, the nozzle 19 has a long side L2 of the opening 19A.
Since the angle is adjusted by the nozzle angle control roller 20 so as to always make a right angle with the tangent line 17 of the contour line of the three-dimensional object 30, this makes the supply amount of wax uniform at any position of the contour part. , The thickness, strength and accuracy of the formed contour are kept constant.

Further, since the opening portion 19A of the nozzle 19 is rectangular as described above, the amount of wax supplied is 5 to 10 times that of the conventional apparatus, and the molding speed is correspondingly high. Further, since the wax supply width is increased due to the long side L2 of the nozzle 19, the angle E of the contour portion with respect to the vertical line V is large, as can be seen from FIG. 11 which is an enlarged view of portion D in FIG. Even in an abrupt region, the overlapping area of the layers 31D made of the supplied molding material becomes large, and reliable lamination is achieved.

In this way, the wax from the nozzle 19 is continuously supplied onto the previous layer,
At that time, the iron 19 is always positioned relatively in front of the nozzle 19 due to the rotation of the processing table 5. Therefore, as described above (FIG. 8), the nozzle 19 has the iron 26.
By this, the surface of the wax is melted horizontally and a new melted wax is layered on the layer of melted wax and connected. Therefore, the wax melted by the iron 26 serves as an adhesive, and easily and surely joins with the melted wax supplied from the nozzle 19 immediately thereafter.

When the wax is supplied from the nozzle 19 to the final stage, the work table driving roller 7 is separated from the work table 5, and the roller 9 is moved to come into contact with the work table support 3 and rotate it. Let As a result, the processing table 5
The wax is supplied from the nozzle 19 during one rotation at the same height without making a descending motion, and a crown portion 31C (FIG. 10) that is horizontally laid is formed. This top part 31C
Is for shaping the uppermost portion of the molded three-dimensional object 31, and is appropriately cut off. As for the formation of the crown portion 31C, a required program is stored in the computer 28 similarly to the above-mentioned base portion 31A.

The operation of each of the above parts is controlled by the computer 28 having the program as described above built therein. Thus, the wax is not layered stepwise by forming a horizontal plane as in the conventional case. No, processing table 5
In the continuous movement from the lowermost part to the uppermost part, that is, by drawing a spiral, the layers are stacked and the desired three-dimensional object 31 is molded in a short time. Then, due to such movement of the processing table 5, the three-dimensional object 31 is not formed with a joint that occurs in each layer in the case of stepwise layered molding by a conventional apparatus.

Although the present invention has been described with reference to the specific embodiments as described above, the present invention is not limited to this, and a person skilled in the art can claim the invention. It goes without saying that various changes and modifications can be made without departing from the above. That is, for example,
As a method of heating the molding material 12 in the tank 11, instead of using oil, water may be filled and heated. Further, the nozzle 19 is the tank 11
Instead of moving it together with the tank 11, for example, the tank 11 is fixed to the working table support 3, and only the nozzle 19 connected to the tank 11 via the material supply tube is movable on the axis 17 as described above. You can also do it. Furthermore,
The raising and lowering and rotation of the processing table 5 can be performed by a structure in which a rod-shaped member for driving the processing table is opposed to the peripheral surface thereof, and gears are provided on both to engage with each other.

[0036]

As described above, according to the present invention, the following effects can be obtained. That is, the first
According to the invention, the time required to complete the desired three-dimensional object can be significantly shortened, and the nozzle drive mechanism can be simplified to simplify the device, so that even a non-specialist can easily operate the device. In addition to the above, it is possible to obtain the effect that the cost of the entire apparatus can be reduced. According to the second invention, in addition to the effect obtained by the first invention, an effect that a three-dimensional object having uniform thickness, strength and accuracy of the contour portion can be produced is obtained. According to the third invention, in addition to the effect produced by the second invention, it is possible to cope with a case where the angle of the contour portion changes abruptly. can get. According to the fourth aspect of the invention, in addition to the effect of the first aspect of the invention, it is possible to obtain the effect that a three-dimensional object having high lamination strength can be molded and that precise temperature control by a greenhouse or the like is unnecessary. According to the fifth aspect of the invention, in addition to the effect of the second aspect, it is possible to obtain the effect that a three-dimensional object having a high stacking strength can be molded without performing precise temperature control such as a greenhouse. According to the sixth invention,
An even more excellent effect, which is a combination of all the effects of the first to fifth inventions, can be obtained at the same time.

In the present invention, in addition to these various effects, generally used inexpensive materials such as wax, plastic, vinyl, and nylon are used without waste in an amount necessary for molding a three-dimensional object. As a result, the running cost including the material cost can be reduced. Therefore, it becomes possible to realize a large-sized device capable of molding a large three-dimensional object by a synergistic effect with the above-mentioned cost reduction of the entire device. Further, the molded three-dimensional object has an advantage that it can be used also as a lost wax mold.

Therefore, the device of the present invention having such excellent characteristics can be applied to, for example, a living organ for practical use in the manufacturing industry, for design study, for experimental analysis, for fabrication of processed samples, and for surgical method study in the medical field. And skeleton models for designing artificial bones, molecular models in the field of chemistry, models of chemical plants, etc., expanded body models of microorganisms in the field of biology, organ models, precious metals in the field of jewelry and art. Casting jewelry, making busts, making duplicates of sculptures, etc. in the field of selling sweets, such as chocolate sales at stores, use of so-called three-dimensional copying machines as design tools at design offices, etc. It can be used in a wide range of fields.

[0039]

[Brief description of drawings]

FIG. 1 is a partially cutaway front view conceptually showing one embodiment of a three-dimensional object molding apparatus according to the present invention.

FIG. 2 is a partially cutaway enlarged front view conceptually showing a material supply mechanism.

FIG. 3 is a plan view conceptually showing the positional relationship between the processing table and the tank.

FIG. 4 is a horizontal enlarged sectional view of a nozzle.

FIG. 5 is a bottom view conceptually showing a nozzle, a nozzle angle control roller and the like.

FIG. 6 is a plan view conceptually showing movement of a contour line of a three-dimensional object.

FIG. 7 is an enlarged plan view conceptually showing the relationship between the movement of the contour line of the three-dimensional object and the angle of the nozzle.

FIG. 8 is a perspective view conceptually explaining welding of materials by a trowel.

FIG. 9 is a perspective view showing an example of a prototype model of a three-dimensional object to be molded.

FIG. 10 is a front view conceptually showing a molded three-dimensional object.

FIG. 11 is an enlarged cross-sectional view of portion D in FIG.

[Explanation of symbols]

 3 ・ ・ ・ ・ ・ ・ ・ ・ ・ Processing table support 4 ・ ・ ・ ・・ ・ Spiral shaft 5 ・ ・ ・ ・ ・ ・ ・ Processing table 7 ・ ・ ・ ・ ・ ・ ・ ・ ・ Processing table drive roller 12 ・ ・ ・ ・ ・ ・ ・ Molding material 17 ・ ・ ・ Axis 18 ・ ・ ・ ・ ・ ・ Rotating block 19 ・ ・ ・ ・ ・ ・ Nozzle 19A ・ ・ ・ ・・ Aperture 20 ・ ・ ・ ・ ・ ・ ・ Nozzle angle control roller 22, 22A, 22B ・ ・ ・ Outline line 23, 24 ・ ・ ・ ・ ・ ・ Tangent line 26 ・ ・ ・・ ・ ・ Iron 28 ・ ・ ・ ・ ・ ・ ・ ・ ・ Computer L2 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Long side

Claims (6)

[Claims] 1. A working table which is continuously movable in a vertical direction while rotating, a nozzle which is movable in one axial direction to supply a molten molding material onto the working table, and a solid body to be molded. A three-dimensional object molding apparatus comprising a computer for controlling the operation of the processing table and the nozzle based on three-dimensional graphic data of the object. 2. A working table which is capable of continuously moving in the vertical direction while rotating, a nozzle which is movable in one axial direction for supplying a molten molding material onto the working table, and a solid body to be molded. And a computer that controls the operation of the processing table and the nozzle based on the three-dimensional graphic data of the object, and the nozzle is always parallel to the tangent line of the contour line of the solid object based on a command from the computer. A three-dimensional object molding apparatus, wherein an angle is automatically adjusted so as to supply the molding material in various directions. 3. A working table which is continuously movable in the vertical direction while rotating, a nozzle which is movable in one axial direction to supply the melted molding material onto the working table, and a solid body to be molded. And a computer that controls the operation of the processing table and the nozzle based on the three-dimensional graphic data of the object, and the nozzle is always parallel to the tangent line of the contour line of the solid object based on a command from the computer. The angle is automatically adjusted to supply the molding material in various directions, and the material supply port in the nozzle is rectangular, and its long side is perpendicular to the tangent line. Three-dimensional object molding equipment. 4. A working table which is movable in the vertical direction continuously while rotating, a nozzle which is movable in one axial direction for supplying the melted molding material onto the working table, and a solid body to be molded. And a computer that controls the operation of the processing table and the nozzle based on the three-dimensional graphic data of the object, and heats and melts the molding material, which is already supplied from the nozzle and hardened, in front of the nozzle. A three-dimensional object molding apparatus having a trowel. 5. A working table which is continuously movable in the vertical direction while rotating, a nozzle which is movable in one axial direction for supplying the melted molding material onto the working table, and a solid body to be molded. And a computer that controls the operation of the processing table and the nozzle based on the three-dimensional graphic data of the object, and the nozzle is always parallel to the tangent line of the contour line of the solid object based on a command from the computer. The angle is automatically adjusted so as to supply the molding material in different directions, and a trowel that heats and melts the molding material that has already been supplied and hardened by the nozzle is arranged in front of the nozzle. A three-dimensional object molding device characterized in that 6. A working table which is continuously movable in the vertical direction while rotating, a nozzle which is movable in one axial direction to supply a molten molding material onto the working table, and a solid body to be molded. And a computer that controls the operation of the processing table and the nozzle based on three-dimensional graphic data of the object, and the nozzle is always in a direction parallel to the tangent line of the contour line of the three-dimensional object based on a command from the computer. The angle is automatically adjusted to supply the molding material to the nozzle, and the material supply port in the nozzle has a rectangular shape, the long side of which is perpendicular to the tangent line, and the front of the nozzle. A three-dimensional object molding apparatus, in which a trowel that heats and melts the molding material that has already been supplied and cured from the nozzle is disposed.