KR20040025618A - Apparatus and method for making product having oval shape - Google Patents

Abstract

PURPOSE: An apparatus and method for producing an article having an elliptical shape are provided to produce an article having an elliptical shape by a tool for molding and finishing a workpiece while rotating the workpiece. CONSTITUTION: The apparatus, which produces an article having an elliptical shape at least some part by molding and finishing a workpiece by relative motion of a workpiece and a tool, includes: a workpiece retainer(26) for mounting the workpiece; a revolution and rotation driving unit(24) having a revolution driver for revolving the workpiece retainer around a first axis and a rotation driver for rotating the workpiece retainer around a second axis parallel to the first axis; and a tool rest(28) for supporting the workpiece and maintaining the workpiece to be located at a predetermined position with respect to the first axis.

Description

Apparatus and method for manufacturing article having elliptical shape {APPARATUS AND METHOD FOR MAKING PRODUCT HAVING OVAL SHAPE}

The present invention relates to an apparatus and method for making an article having an elliptical shape.

An example of an article having an oval shape is an oval ceramic bowl. Conventional methods for forming such oval ceramic bowls include injection molding and press molding operations. Injection molding combines several molds to form a cavity that fits into an oval bowl in it, and then pours soil there. This molding method has a problem in forming a good bowl because the density of the soil is low. In addition, in the press forming operation, a die (die) and a pressing punch are used. A die (former) is formed in the mold with a lower (or upper) shape, and a press punch descending from the upper part has a die (former) with an upper (or lower) shape. Form. In the press molding operation, the density of the soil can be increased to a certain degree, but the quality is lower than that of a bowl (round bowl) manufactured by a spinning wheel method. On the other hand, it is possible to produce a circular bowl with a rotary formulation, by applying pressure to the soil in the circumferential direction to arrange the particles of the soil, there are many advantages, such as to increase the strength of the bowl and reduce deformation. However, it was difficult to produce an oval bowl, not a garden, using a conventional spinning wheel, a molding wheel, an automatic molding machine, etc., which can only mold garden-type articles.

It is a primary object of the present invention to provide an apparatus and method for making an article having an elliptical shape. Specifically, the present invention provides an apparatus and method for manufacturing an article having an elliptical shape as a tool for forming or processing a workpiece while rotating the workpiece.

Another object of the present invention is to provide a formulation for molding an oval porcelain bowl.

Another object of the present invention is to provide an article manufacturing apparatus having an elliptical shape which can change the eccentricity (degree of death) of an ellipse possessed by the article to be manufactured.

Another object of the present invention is to provide an apparatus for producing an article having an elliptical shape that can change the size of an ellipse possessed by the elliptical article.

It is still another object of the present invention to provide an apparatus for producing an article having an elliptical shape, which can also produce articles of various sizes.

Still another object of the present invention is to provide a molding roller for molding and a method and apparatus for molding an article using the roller.

1 is a plan view, a right side view and a front view, and a part of a right side view and a front view, in a cross-sectional view, of a vessel to be manufactured with a formulation spinning wheel according to one embodiment of an apparatus for manufacturing an article having an elliptical shape according to the present invention

2 is a schematic representation of a formulation wheel according to one embodiment of an apparatus for making an elliptical article of the present invention.

FIG. 3 is a perspective view of a revolving-rotating drive device of the formulation of FIG.

FIG. 4 is a front view of the revolving-rotating drive of the formulation of FIG. 2 showing the drum in cross section. FIG.

FIG. 5 is a plan view of the revolving-rotation drive of the formulation of FIG.

Figures 6a-6e illustrate the principle of elliptic forming operation using the revolution-rotating drive of the formulation of Figure 2;

7A-7C show the relationship between the distance between the center of revolution and the center of rotation of the idle-rotation drive of the formulation of FIG. 2 and the ellipse shape of the article being molded;

FIG. 8 is a diagram showing a relationship between an elliptic shape and a distance between a central axis of revolution and a tool of an idle-rotating drive device of the formulation of FIG.

9 is a perspective view showing an idle-rotating drive device of another structure for use in a formulation according to another embodiment of the present invention.

10A-10I illustrate various examples of tools for use in the apparatus for making an elliptical article of the present invention.

According to one aspect of the present invention, an apparatus for manufacturing an article having an elliptical shape in at least a part of forming or processing the workpiece by the relative movement of the workpiece and the tool,

A workpiece support for mounting the workpiece

A revolution-rotation drive device having a revolution driver for revolving the workpiece support about a first axis and a rotation driver for rotating the workpiece support about a second axis parallel to the first axis;

A tool post for supporting the tool and for maintaining the tool at a predetermined position with respect to the first axis,

The idle-rotating drive device is provided with an article manufacturing apparatus having an elliptical shape that maintains the revolution direction and the rotation direction of the workpiece support the same and maintains the magnitude of the revolution speed and the magnitude of the rotation speed at 2: 1.

In one embodiment, the rotational actuator of the idle-rotation drive device has a fixed rotational central axis located on a first axis, a rotational central axis located on the second axis and connected to a workpiece support, and A medial axis parallel to the central axis of rotation, a first link connecting between the orbital axis and the intermediate axis, a second link connecting the intermediate and rotational axis, the orbital axis and the intermediate axis And a pair of gears fixed to and engaged with each other, and a pair of gears fixed to the intermediate shaft and the rotational center axis and engaged with each other. In addition, the revolving actuator has a drum that rotates about a first axis and covers the rotating driving mechanism, and a connecting rod connecting the inside of the drum and the rotating central axis.

In one embodiment, the idle driver includes a drum which surrounds the rotating driver and rotates about a first axis, and a linear movement mechanism extending radially across the inside of the drum and passing through the first axis and the second axis. Thus, the distance between the rotational central axis and the revolving central axis can be adjusted. The linear transfer mechanism is arranged in parallel with a support block fixed inside the drum, a transfer block connected to the central axis of rotation, a lead screw extending between the support blocks through the transfer block, and the lead screw. It may have a guide rod that is fixed to the support block past the transfer block.

In another embodiment, the idle driver may include a drive shaft rotatably mounted inside the fixed idle center shaft, and a drive link connecting the drive shaft and the autorotation central shaft. In another embodiment, the idle driver may include a revolving motor for revolving drive, and the revolving driver may include a revolving motor for revolving drive.

In one embodiment, the apparatus for producing an article having an elliptical shape is an apparatus for manufacturing an elliptical bowl. At this time, the workpiece support may be a mold having a shape that matches the shape of a part of the oval bowl. The tool may be a formulation roller. Alternatively, it may be a formulation spatula.

An apparatus for producing an article having an elliptical shape can process wood or metal, wherein the tool is a cutter for processing the wood or metal.

According to another aspect of the present invention, there is provided a method for producing an article having an elliptical shape in at least a part,

Mounting the workpiece to be shaped or machined on the workpiece support,

Rotating the workpiece support about the second axis while simultaneously rotating the workpiece support about the first axis;

A method of making an article having an elliptical shape for positioning a tool at a distance from the first axis is provided.

In one embodiment, the method further comprises adjusting a distance between the first axis and the second axis. The method further includes adjusting a distance between the first axis and the tool.

According to another aspect of the present invention, there is provided a method of manufacturing a workpiece having a circular or elliptical shape by processing a workpiece of a moldable material such as soil by a formulation,

Mounting the formable workpiece on the mold;

Rotating the mold about a rotation axis;

A method of manufacturing an article is provided, comprising positioning a formulation roller that rotates about a rotation axis different from the rotation axis of the die at a predetermined position with respect to the rotation axis of the die.

According to still another aspect of the present invention, there is provided a formulation spinning wheel which is manufactured by molding a workpiece having a circular or elliptical shape by processing a workpiece of a molding material such as soil,

A mold for mounting the moldable workpiece,

A driving device for rotating the mold about a rotation axis;

A formulation spinning wheel is provided which has a formulation roller that rotates about a rotation axis different from the rotation axis of the mold.

According to yet another aspect of the present invention, there is provided a formulation roller, which is mounted on a formulation wheel to form a workpiece of a moldable material such as soil,

Rotation axis,

A formulation roller provided with a cylinder having a circumferential surface fixed to a rotating shaft and in contact with the workpiece is provided.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Referring to Figure 1, an oval bowl to be molded into a formulation according to an embodiment of the elliptical article manufacturing apparatus of the present invention is shown. For example, the oval bowl 10 shown in FIG. 1 has a long diameter Da of about twice the short diameter Db, a height of the front 12 low, a thickness t thin, and a low heel 14. It is a common oval plate with. The hatched portion in the figure represents the cross section of the vessel. The oval bowl 10 formed in the formulation is then slightly larger than the size of the final product because it shrinks during drying and roasting and chaebol.

2, there is shown a formulation spinning wheel 20 according to one embodiment of an elliptical article manufacturing apparatus of the present invention. The formulation wheel 20 has a frame 22, an idle-rotating drive 24, a mold 26, and a tool post 28. Pedestal 22 is provided with a base frame 30 made of steel and a support cover 32 having a rigidity enough to support the rotation of the drum to be described later to be covered on the base. In Figure 2 the support cover 32 is shown in cross section. The drive motor 34 is mounted to the base frame 30. As an apparatus for providing a driving force, the present invention is not limited to the driving motor. The drive motor 34 is, for example, equipped with a reduction gear (or transmission gear, etc.) and includes a motor shaft 36 and a belt pulley 38 mounted at the end thereof.

The idle-rotating drive device 24 receives the driving force of the motor 36 to transmit the power to the mold 26 to rotate and rotate as described below. The mold 26 is placed on the mold 26, the soil to be formed, and the elliptical bowl 10 is formed after molding. In FIG. 2, the mold 26 is shown in cross section and an elliptical bowl 10, which is a workpiece on it, is also shown in cross section. On the other hand, the formulation wheel 20 has a tool post 28. The tool holder 28 is a lever support 42 fixed to the frame 30 and a rotary roller 44 pivotably pivoted on the lever support 42 and a formulation roller which is a tool mounted under the rotary lever 44 ( 46).

The formulation roller 46 is rotatably mounted about its central axis. The rotational axis of the formulation roller is preferably mounted so as to cross the rotational center axis of the idle-rotation drive device 24. The lever 46 extending beyond the pivot point is equipped with a roller drive motor 47 and the axis of the motor is connected to the axis of the roller 46 to rotate the formulation roller 46. In actual work, while holding down the end handle 48 of the lever 44, the roller 46 rotates while pressing while pressing the soil that is the workpiece. Rotating at a speed several times faster than the rotation of the mold by the drive device connected to the central axis of the roller, smoothes the surface of the bowl and makes the particle arrangement of the soil more uniform and dense.

2 to 5, the idle-rotation drive device 24 is largely provided with a revolution drive unit, a rotation drive unit and a linear transfer device. In the illustrated embodiment, as will be described later, the linear transfer device also functions as part of the idle drive. The idle drive unit includes a drum 50. The drum 50 is connected to the pulley 38 by the belt 52 and rotates by receiving the power of the motor 34. At this time, the drum 50 is rotatably supported by the upper support bearing 54 mounted on the support cover 32. A lower support bearing 56 is mounted between the fixed shaft to be described later and rotatably supported (see FIG. 4).

As shown in detail in Figs. 3 to 5, the rotating drive portion rotates the mold 26 connected to the mold shaft by using a link and a gear between three axes. The idle-rotating drive device 24 has a fixed shaft 58 which is connected to each other by a link and is parallel to each other, and a fixed shaft 58 and an intermediate shaft 60 and a mold shaft 62 which functions as a rotating center axis. The fixed shaft 58 is fixed to the frame 30 and is located on the rotation center line of the drum 50. The mold shaft 62 is coupled to the mold 26 and rotates about the fixed shaft 58 and rotates itself. A first link 64 is connected between the fixed shaft 58 and the intermediate shaft 60. Although not shown in detail, a bearing is interposed between the first link 64 and the fixed shaft 58 and between the first link 64 and the intermediate shaft 60. Meanwhile, a second link 66 is also connected between the intermediate shaft 60 and the mold shaft 62. Although not shown in detail, a bearing is interposed between the second link 66 and the mold shaft 62 and between the second link 66 and the intermediate shaft 60. The second link 66 is located above the first link 64. In the present embodiment, the lengths of the two links 64 and 66 are the same, but the present invention is not limited thereto.

3 to 5, a fixed gear 68 is fixed to the fixed shaft 58. The first intermediate gear 70 meshing with the fixed gear 68 is fixed to the intermediate shaft 60. A second intermediate gear 72 is also fixed to the intermediate shaft 60 above the first intermediate gear 70. The second intermediate gear 72 is a magnetized gear fixed to the mold shaft 62, that is, a mold. Meshes with gear 74.

3 to 5, the first intermediate link 64 and the second intermediate link 66 have the same length. That is, the distance between the fixed shaft 58 and the intermediate shaft 60 and the distance between the intermediate shaft 60 and the mold shaft 62 are equal. In this embodiment, the ratio of the diameters of the pitch gears of the fixed gear, the first intermediate gear, the second intermediate gear, and the mold gear is 1.5: 1.5: 1: 2. However, the present invention is not limited thereto, and the ratio between the lengths of the links 70 and 72 and the diameter of the pitch circle of each gear may be different. The mold shaft 62 revolves about the fixed shaft 58 twice. As long as the mold shaft 62 rotates once, any combination of ratios of gear pitch circles can be used.

The idle-rotation drive device 24 includes a linear transfer device 76 for linearly feeding the mold shaft 62 toward or away from the fixed shaft 58. The linear transport device 76 is provided at both ends in the radial direction and has a support block 78 fixed to the drum 50. The transfer block 80 is positioned between the two support blocks 78. The transfer block 80 is extended to the mold shaft 62 is rotatably coupled via a bearing. The lead screw 82 extends from one support block 78 and passes through the transfer block 80 to the other support block 78. One end of the lead screw 82 is projected past the support block 78, the end of which is a rotatable dial 84 is coupled. The lead screw 82 is rotatably supported by the support block 78. The lead screw 82 may linearly move the transfer block 80 when the dial 84 is rotated by interacting with a transfer nut (not shown) provided in the transfer block 80. In this embodiment, the lead screw is used for the linear movement of the transfer block 90, but the configuration of the linear movement mechanism is not limited. Guide rods 86 are provided on both sides of the transfer screw 82 side by side. The guide rod 86 is fixed to both support blocks 78 and extends through the transfer block (80). The linear movement of the transfer block 80 is guided by the guide rod (86). On the other hand, since the linear transfer device 76 is fixed to the drum 50 and coupled to the mold shaft 62, the rotation of the drum 50 is transmitted to the mold shaft 62 so that the idle shaft 62 revolves. It also functions as a link.

Subsequently, with reference to FIGS. 3 to 5, the operation of the mold shaft 62 to rotate and rotate will be described. The drum 50, which receives power from the motor 34 via the belt 52, rotates about the fixed shaft 58. In the present embodiment, as shown in Figure 3 to rotate in the clockwise direction, but the present invention is not limited thereto. Rotation of the drum 50 rotates the entire linear feeder 76 and further revolves the mold shaft 62 and the intermediate shaft 60 connected by the link about the fixed shaft 58. At this time, the first intermediate gear 70 rotates with respect to the center line of the intermediate shaft 60 while revolving in engagement with the fixed gear 68. This rotation is transmitted to the intermediate shaft 60 and it is transmitted to the mold gear 74 through the second intermediate gear 72.

At this time, the rotating direction of the mold shaft 62 is the same as the rotating direction, and the size of the rotating speed is 1/2 of the size of the rotating speed. In detail, in general, when a rotation axis that is a distance from a center line rotates clockwise with respect to the center line, assuming that there is no medium between the rotation axis and the center line, one rotation clockwise during one revolution Rotate However, in the present embodiment, between the fixed shaft 58 and the mold shaft 62, which is a rotating shaft, there is a medium between the fixed gear 68, the intermediate gears 70 and 72, and the mold gear 74. Power is generated that causes the mold gear 74 to rotate in a counterclockwise direction at a speed equal to half the size of the idle speed and is transmitted to the mold shaft. Therefore, the actual rotation speed of the mold shaft is reduced by 1/2, and the mold shaft is rotated at a speed of 1/2 the size of the revolution speed in the same direction as the revolution direction.

6A to 6E, when the direction is the same between the revolution and the rotation and the speed is 2: 1 as described above, when the workpiece is subjected to such movement and the tool is fixed, an elliptical shape is formed on the workpiece. Explain the process. 6a to 6e illustrate a process of one revolution. In Fig. 6, P is the position of the mold shaft, T is the position of the fixed shaft, and S is one point of the tool, and in Fig. 6A, the point S represents the end of the long diameter of the ellipse to be molded. Also, in Fig. 6A, the point R is the end of the short diameter of the ellipse to be formed by the S point. In the description related to Fig. 6, TS denotes the distance between the T point and the S point, L denotes the distance between the mold axis and the centerline of the drive shaft (i.e., the distance between the P point and the T point), and the circle represents the revolution of the mold axis. Represents an orbit. In FIGS. 6A to 6E, the elliptic shape to be formed is indicated by a dotted line, and the elliptic shape actually generated by passing the work point S on the tool is indicated by the solid line. 6B and 6C are shown in order to compare the positions of the ellipses when the gears 68, 70, 72 and 74 are absent in the present embodiment and are not directly related to the present invention.

The state shown in Fig. 6A is an example of a start position, in which the tool S, the idle center T, and the mold axis center P are located on the same straight line. At this time, the distance PS between the center of the mold shaft and the tool, that is, the sum of TS and L is half of the long diameter Da of the ellipse to be formed. The difference between TS and L is half of the short diameter Db of the ellipse to be formed. The long axis of the ellipse coincides with the PS, and the short axis is orthogonal to it.

The state shown in Fig. 6B is a state in which the mold shaft is idle by 90 degrees on the orbit. At this time, the workpiece is rotated by 45 degrees. The long and short axis of the ellipse to be formed thus meet 45 degrees with the line segment TS between the center of revolution and the tool. While coming to the position as shown in Fig. 6B, as many ellipses as solid lines are formed.

The mold shaft shown in Fig. 6C is in a state of revolving 180 degrees on the orbit. At this time, the workpiece is rotated 90 degrees. The long axis of the ellipse to be shaped is thus orthogonal to the line segment TS between the central axis of revolution and the tool and the short axis is coincident. While coming to the position as shown in Fig. 6C, as many ellipses as solid lines are formed.

The mold shaft shown in Fig. 6D is in a state of revolving at an angle of 180 degrees or more and 360 degrees or less on the orbit. At this time, the workpiece is rotated by 1/2 of its revolution angle. While coming to the position as shown in Fig. 6D, ellipses as many as solid lines are formed.

The form shaft shown in Fig. 6E is in a state of revolving 360 degrees on the orbit. At this time, the workpiece is rotated 180 degrees. Thus, the long axis of the ellipse to be formed coincides with the line segment TS between the central axis of revolution and the tool and the short axis is orthogonal. While at the position as shown in Fig. 6E, as much as indicated by the solid line, i.e., half of the ellipse is formed.

6A to 6E revolves one more revolution so that the other half of the ellipse is molded. In this way, the workpiece is subjected to orbiting and rotating but the ratio of revolution speed (rotation speed) and rotation speed (rotation speed) is 2: 1, and the point S is placed at a distance away from the center of revolution T. The points on the workpiece passing through the point S can be traced to the ellipse to form an ellipse.

Next, a method of changing the ratio between the long diameter and the short diameter of the ellipse will be described with reference to FIG. This is possible by changing the distance between the center of the mold shaft 62 and the center of the fixed shaft 58 by linearly moving the mold shaft 62 in FIG. For example, referring to FIG. 7A, if the distance between the center of revolution T and the tool S is TS and the distance between the center of revolution T and the rotation center P is L, the long diameter is twice TS + L and the short diameter is TS −. 2 times L As shown in Fig. 7A, when TS is 16.5 and L is 1.5, the long diameter Da is 36 and the short diameter Db is 30. As shown in Fig. 7B, when TS is 17.5 and L is 7.5, the long diameter Da is 50 and the short diameter Db is 20. In this way, ellipses having different ratios between the long and short diameters of the ellipse can be formed. Also, as shown in Fig. 7C, when the revolution center T coincides with the rotation center P, L becomes zero. If TS is 10, a circle having the same long diameter and short diameter, that is, a diameter D of 20 is formed.

Referring to Figure 8 it can be seen the effect of the position change of the tool. If the center of revolution T and the center of rotation P are fixed to keep the distance L between them constant, and the position of the tool is changed to change the distance TS between the center of revolution and the tool, the ellipse changes. For example, when TS1 is 17.5 and L is 2.5, the long diameter Da1 is 40 and the short diameter Db1 is 30. Here, if only TS2 is changed to 7.5, the long diameter Da2 becomes 20 and the short diameter Db2 becomes 10. That is, the difference between the long diameter and the short diameter is always constant, but an ellipse having a different size and eccentricity can be obtained. In Figures 7A-7C and 8, point I points to the center of the intermediate axis, and the solid line between each point points to the intermediate link.

9 is a revolution-rotation drive device 924 of the formulation according to another embodiment is largely provided with a revolution drive and a rotation drive. Also in this embodiment, as will be described later, the linear transfer device also functions as a part of the idle drive. Unlike the previous embodiment, the idle drive unit has a central drive shaft 950 that receives rotational force from the motor instead of the drum 50. The central drive shaft 950 extends through the center of the fixed shaft 958 and a bearing is interposed therebetween.

9, the rotating drive unit rotates the mold connected to the mold shaft by using a link and a gear between three axes. The idle-rotating drive 924 has a fixed shaft 958 connected to each other and parallel to each other, the intermediate shaft 960 and the mold shaft 962. The fixed shaft 958 is fixed to the frame. The mold shaft 962 is coupled to the mold and revolves about the fixed shaft 958 and rotates itself. A first link 964 is connected between the fixed shaft 958 and the intermediate shaft 960. It is fixed to the first link 64 and the central drive shaft 950, and a bearing is interposed between the first link 964 and the intermediate shaft 960. Meanwhile, a second link 966 is also connected between the intermediate shaft 960 and the mold shaft 962. Although not shown in detail, a bearing is interposed between the second link 966 and the mold shaft 962 and between the first link 964 and the intermediate shaft 960. The second link 966 is located above the first link 964.

9, the fixed gear 968 is fixed to the fixed shaft 958. As shown in FIG. A first intermediate gear 970 meshing with the fixed gear 968 is fixed to the intermediate shaft 960. In the intermediate shaft 960, a second intermediate gear 972 is also fixed to the first intermediate gear 970. The second intermediate gear 972 meshes with a magnetism gear fixed to the mold shaft 962, that is, the mold gear 974.

In the embodiment shown in FIG. 9, the first intermediate link 964 and the second intermediate link 966 have the same length. That is, the distance between the fixed shaft 958 and the intermediate shaft 960 and the distance between the intermediate shaft 960 and the mold shaft 962 are equal. Further, in this embodiment, the ratio of the diameter of each pitch circle of the fixed gear, the first intermediate gear, the second intermediate gear, and the mold gear is 1: 2: 1.5: 1.5.

The idle-rotating drive device 924 includes an idle drive link 976 and a drive link holder 978 that rotate by the rotation of the central drive shaft 950. The holder 978 is fixed to the drive shaft 950. The mold shaft 962 is fixed to the idle drive link 976. A hole is formed in the upper part of the holder 978, and the driving link 976 extends through the hole. In operation, the holder 978 and the driving link 976 are fixed. If necessary, the holder 978 and the driving link 976 are fixed, and the driving link 976 (the mold shaft 962) can be linearly moved through the hole of the holder 978. have. It will be understood by those skilled in the art that such fastening and loosening of the fastening can be appropriately carried out by fastening stop screws. Moving the drive link 976 with respect to the holder 978 may change the distance between the center of the drive shaft 950 which is the center of revolution and the center of the mold shaft 962 which is the center of rotation. In addition, although not described in detail, it is also possible to combine the first intermediate link 964 between the drive shaft 950 and the holder 978 and the drive shaft 950 with fixing screws that can be fixed and released for fine adjustment. Those skilled in the art will understand.

9, when the drive shaft 950 rotates, the holder 978 and the drive link 976 rotate to rotate the mold shaft 962. Meanwhile, at this time, the intermediate shaft 960 connected by the links 964 and 966 also rotates, and the first intermediate gear 970 rotates with respect to the center line of the intermediate shaft 960 while the first intermediate gear 970 engages with the fixed gear 968. Will be This rotation is transmitted to the intermediate shaft 960 and it is transmitted to the form gear 974 through the second intermediate gear 972. As a result, the mold shaft 974 having a desired direction and speed obtains a rotational motion. The rotation direction is the same as the revolution direction, and the magnitude of the rotation speed is 1/2 of the magnitude of the revolution speed.

10A-10I, various examples of tools used in the elliptical article manufacturing apparatus of the present invention are shown. 10A and 10B are cross-sectional views, respectively, in a perspective view and a plane extending radially from the center of rotation axis of the formulation roller 46 shown in FIG. The roller 46 has an intermediate shaft 88 and a cylinder 90 provided on the shaft. The cylinder 90 has two truncated cones arranged in the axial direction so that the radius thereof becomes smaller toward the center, that is, the vertices face each other, and a groove 92 is provided between the two truncated cones. The groove 92 is formed by the groove 92. The angle formed by the inclined surfaces of the two truncated cones constituting the cylinder 90 is the angle between the bottom of the bowl and the transition.

10A and 10B illustrate an example of a formulation roller according to the present invention, and the present invention is not limited thereto. Two truncated cones may be attached but the bottom of the truncated cone may be attached (see FIG. 10C), or the cylinder may be connected to the truncated cone (see FIG. 10D). In the case of a truncated cone or cylindrical roller, the outline (the line formed by the roller surface) cut by a plane extending radially from the center of rotation appears as a straight line (see FIGS. 10B, 10C and 10D). It may have a shape such as a concave curve (see FIG. 10E) or a convex curve (see FIG. 10F) or a combination of a straight line and a curve. Formulation roller according to the above example may be used in the manufacture of a circular bowl in a conventional formulation in addition to molding an elliptical vessel in the formulation according to the present invention.

FIG. 10G is to mold the vessel 10 using a formulation spatula (also called hera) 46a. The spatula is formed with a shape that matches the shape of the bottom, the heel, and the front of the bowl. 10H shows a formulation spatula 46b forming the inside of the vessel 10. The shape is formed to match the shape of the inner bottom and the inner side of the vessel.

Fig. 10I shows an example of machining an elliptical shape on the workpiece 10d such as metal or wood using the bite 46d. The workpiece 10d is driven by an idle-rotating drive as in the previous embodiment and the bite 46d is fixed. In addition to the bite 46d, an elliptical shape can be processed using a cutting tool such as a milling cutter or a grinding tool such as a grinding wheel.

The present invention has been described above through the above embodiments, but the present invention is not limited thereto. In the above embodiment, the whole workpiece is described as being elliptical, but it also belongs to the present invention to manufacture an article having an elliptic shape in part as shown in FIG. 10I. In addition, in the above embodiment, but was described to form the soil as a workpiece by the formulation spinning wheel, it is also possible to mold the workpiece of other moldable materials, such as rubber clay, flour dough, etc. can be molded with a certain viscosity in addition to the soil.

The idle-rotation drive in the above embodiment uses a mechanical power transmission element to set the ratio of the revolution speed and the rotation speed to 2: 1, but other types of idle-rotation drive devices may be considered. For example, in another embodiment, the idle drive motor and the rotate drive motor may be provided separately. That is, the idle drive motor rotates the mold shaft, and the rotate drive motor rotates the mold shaft. At this time, the rotating drive motor transmits the driving force to the mold shaft to the size 1/2 of the idle speed in the direction opposite to the idle direction. Then, the mold shaft is rotated at a speed of 1/2 the size of the revolution speed in the revolution direction by the rotation caused by the rotation of the rotation motor and the rotation naturally occurring due to the revolution.

According to the configuration of the present invention, it is possible to achieve all the objects of the present invention mentioned above. According to the configuration of the present invention, there is provided an apparatus for manufacturing an article in which some or all of the shape of the article is elliptical. For example, an apparatus for forming an oval bowl, that is, a formulation, is provided. This formulation can be used to produce a high quality oval bowl, such as a conventional garden bowl. As a result, it is possible to automatically or semi-automatically produce the oval bowl, not the garden, by means of a spinning wheel, a molding wheel, an automatic molding machine, etc., by rotating the shaft, which was considered to be possible only for existing garden molding.

According to the configuration of the present invention, it is possible to manufacture an article having an elliptical shape having different eccentricity (degree of roughness) or different sizes in one manufacturing apparatus. Furthermore, a garden article can be manufactured by one manufacturing apparatus. In addition, according to the configuration of the present invention, there is also provided a formulation roller for molding a moldable material such as soil into a formulation wheel.

Claims (27)

An apparatus for forming an article having an elliptical shape at least in part by forming or processing a workpiece by a relative movement of the workpiece and the tool, A workpiece support for mounting the workpiece, A revolution driver having a revolution driver for revolving the workpiece support about a second axis parallel to the first axis and a revolution driver for revolving the workpiece support about a first axis; Rotating drive, A tool post for supporting the tool and for maintaining the tool at a predetermined position with respect to the first axis, The idle-rotating drive device has an elliptical shape that maintains the rotational direction and the rotational direction of the workpiece support the same, and maintains the magnitude of the revolution speed and the magnitude of the rotation speed to 2: 1. 2. The rotating driver of claim 1, wherein the rotating driver of the idle-rotating drive device A fixed revolution center shaft located at the first axis, A rotation center shaft located at the second axis and connected to the workpiece support; An intermediate shaft parallel to the orbital axis and the rotational axis, A first link connecting the idle central axis and the intermediate axis, A second link connecting the intermediate axis and the rotational axis; A pair of gears fixed to the orbital central axis and the intermediate shaft and engaged with each other; Apparatus for producing an article having an elliptical shape having a pair of gears fixed to the intermediate shaft and the rotational center axis and engaged with each other. The apparatus of claim 2, wherein the first link and the second link have an elliptical shape having the same length. According to claim 2, wherein the idle driver A drum surrounding the rotating driver and rotating about a first axis; Apparatus for producing an article having an elliptical shape having a connecting rod connecting the inside of the drum and the center of rotation. According to claim 2, wherein the idle driver A drum covering the rotating drive mechanism and rotating about a first axis; A linear movement mechanism extending radially across the interior of the drum and passing through a first axis and a second axis, the article having an elliptical shape for adjusting a distance between the rotational center axis and the revolving center axis; Manufacturing equipment. The method of claim 5, wherein the linear transfer mechanism A support block fixed to the drum, A transfer block connected to the rotational axis; A lead screw extending between the support block and past the transfer block; Apparatus for producing an article having an elliptical shape associated with the lead screw and having a guide rod fixed to the support block passing through the transfer block. According to claim 2, wherein the idle driver A drive shaft rotatably mounted inside the fixed idle central shaft; Apparatus for producing an article having an elliptical shape having a drive link connecting the drive shaft and the rotation center axis. The apparatus of claim 1, wherein the revolving driver has a revolving motor for revolving driving, and the revolving driver has a revolving motor for revolving driving. 2. The apparatus of claim 1, wherein the idle-rotating drive further comprises a linear movement mechanism for adjusting the distance between the first axis and the second axis. The apparatus for producing an article according to any one of claims 1 to 9, having an elliptical shape for producing an elliptical vessel. The apparatus of claim 10, wherein the workpiece support is a mold having a shape that matches a shape of a portion of the elliptical bowl, and the other portion of the elliptical bowl is shaped by a tool. The apparatus of claim 11, wherein the tool is a roller that rotates about an axis and forms a bowl. 13. The apparatus of claim 12 wherein the roller has an elliptical shape arranged such that its center of rotation meets the axis of revolution. 13. The apparatus of claim 12 wherein the roller has an elliptical shape formed by two cones arranged along its center of rotation axis. The apparatus of claim 10, wherein the workpiece support is a mold having a shape that matches the shape of a portion of the elliptical bowl, and the tool is a formulation spatula for forming another portion of the elliptical bowl. The apparatus of claim 1, wherein the workpiece is wood or metal, and the tool is a cutter for processing the wood or metal. A method of making an article having an elliptical shape at least in part, Mounting the workpiece to be shaped or machined on the workpiece support, Rotating the workpiece support about a second axis while simultaneously rotating the workpiece support about a first axis; Positioning the tool at a distance from the first axis. 18. The method of claim 17, further comprising adjusting a distance between the first axis and the second axis. 18. The method of claim 17, further comprising adjusting the distance between the first axis and the tool. 18. The method of claim 17 wherein positioning the tool comprises positioning a formulation roller that is a tool and rotating the formulation roller. A method of manufacturing a product having a round or elliptical shape by processing a workpiece of a moldable material with a formulation, Mounting a workpiece of moldable material to the mold; Rotating the mold about a rotation axis; And positioning a formulation roller which rotates about a rotation axis different from the rotation axis of the die at a predetermined position with respect to the rotation axis of the die. The method of claim 21, further comprising rotating the formulation roller. A formulation spinning wheel manufactured by processing a workpiece of a moldable material to mold an article having a circular or elliptical shape, A mold for mounting the workpiece of the moldable material; A driving device for rotating the mold about a rotation axis; Formulation wheel having a formulation roller that rotates about a rotation axis different from the rotation axis of the mold. The formulation spinning wheel of claim 23 wherein the formulation roller is configured such that its axis of rotation meets the axis of rotation of the form. The formulation spinning wheel of claim 23 wherein the formulation roller has a drive for rotationally driving. A formulation roller mounted on a formulation wheel to form a workpiece of a moldable material. Rotation axis, A formulation roller fixed to a rotating shaft and having a cylinder having a circumferential surface in contact with the workpiece. 27. The dosage form roller of claim 26 further comprising a drive device for rotating the rotary shaft.