JPH1148224A - Apparatus for molding elliptical container and elliptical container molded by the apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for molding which can mold an elliptical container in an extremely short time. SOLUTION: This apparatus for molding an elliptical container is provided with a motor 20, a main shaft 22 being rotatably driven by driving of this motor 20, a guide rail 25 fixed on the main shaft 22, a slide member 26 being fitted on the guide rail 25 and freely slided in the length direction, a ring member 27 through which the apex end side of the main body 22 is inserted and whose center is eccentrically fixed to the main shaft 22, a sliding member 32 having the first and the second slidably contacting parts 32b and 32c being fixed on the slide member 26 and being slidably brought into contact with the outer or inner peripheral face of the ring member 27, a supporting shaft 33 fixed on the slide member 32, a mold 9 being rotated by rotating the supporting shaft 33 and on the top face of which an elliptical recessed part 9a is formed and in the recessed part 9a of which a clay being a raw material of the container is fed, and a molding plate 6 fixed in this mold 9 in facing the inner peripheral face of this mold 9 at a specified interval.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for forming an oval container used for producing pots, kettles, dishes, pots and other containers, and an oval container formed by the apparatus for forming an oval container. In particular, the present invention relates to an apparatus for forming an oval container made of clay as a raw material and an oval container formed by the oval container forming apparatus.

[0002]

2. Description of the Related Art Conventionally, pots, pots,
Plates, pots and other containers have been manufactured for a long time, but when these containers are rectangular or other shapes, they are generally molded by a casting method using a gypsum mold. If the container has a circular shape, a method of molding with a potter's wheel is generally used.In recent years, when a container has a circular shape, a plaster mold is rotated without using a potter's wheel. Then, the clay is put into the circular concave portion formed in the gypsum mold, and the molding plate is fixed, and the clay has a predetermined thickness on the inner peripheral surface of the gypsum mold by the end surface of the molding plate. A method or an apparatus for molding by attaching to a gypsum mold is used.

This device comprises a gypsum mold having a circular concave portion formed on the upper surface, a drive motor for rotating the gypsum mold around a position corresponding to the center of the concave portion, and a concave portion formed in the plaster mold. And a formed plate having an end face facing the inner peripheral surface of the sheet. According to this apparatus, clay as a raw material for the container is put into the circular concave portion formed in the gypsum mold, and the gypsum mold is rotated by driving a drive motor, and the end surface of the molding plate and the concave portion are formed. By facing the peripheral surface at a predetermined interval, the clay put into the concave portion is gradually attached to the inner peripheral surface of the concave portion, and is shaped into an outer shape corresponding to the shape of the concave portion. The gypsum mold to which the clay adhered was dried for a predetermined time, released from the gypsum mold, coated with a glaze (in some cases, after a predetermined painting was performed), and fired to obtain a circle. The container having the shape is completed. By using such a device, the molding time can be remarkably reduced as compared with the case where a potter's wheel is used, and it is possible to manufacture efficiently.

[0004] By the way, pots, dishes, pots and other containers are generally circular in shape due to the history of the use of potter's wheel in the past. The molding technique in the case of manufacturing the container of the above is, of course, impossible with the technique using a potter's wheel, it is impossible to mold even in the case of the above-described apparatus, as a result,
It is inevitable to adopt a method in which the clay is put into a gypsum mold having the above-mentioned gypsum mold or a gypsum mold in which an oval-shaped concave portion is formed, and the clay is manually adhered. Moreover, in the casting method using a gypsum mold, clay (porcelain clay) is stirred to a hardness that is easy to flow,
When stones such as feldspar are added to this clay, the stones precipitate, making it impossible to produce a product in which the stones are evenly mixed.

[0005]

SUMMARY OF THE INVENTION The present invention has been proposed to solve the problems of the above-described conventional apparatus, molding method using a potter's wheel, casting method, and the like. An object of the present invention is to provide an elliptical container molding device capable of molding an elliptical container at a time and an elliptical container molded by the device.

[0006]

Means for Solving the Problems The present invention has been proposed to achieve the above object, and a first invention (the invention according to claim 1) relates to an apparatus for forming an oval container. A motor, a main shaft rotatably driven by driving the motor, a guide rail fixed to the main shaft, and a slide attached to the guide rail and slidable in the length direction of the guide rail. A member, a tip end of the main shaft is inserted therethrough, and the center is a ring member fixed eccentrically to the main shaft, and a ring member fixed to the slide member and slidably contacts an outer peripheral surface or an inner peripheral surface of the ring member. A foldable member having first and second foldable portions, a spindle fixed to the foldable member, and an elliptical recess formed on the upper surface while being rotated by rotation of the support shaft. Inside And type clay is turned as a raw material of the container and is characterized by comprising and a molded plate comprising fixed to face with a inner peripheral surface at a predetermined distance of this type.

Further, the second invention (the invention according to claim 2)
According to the first aspect of the present invention, the guide rail is provided inside the ring member, and the first fold portion and the second fold portion formed on the foldable member are different from each other. Also, the inner peripheral surface is formed so as to fold against the outer peripheral surface of the ring member.

The third invention (the invention according to claim 3)
Are a motor, a main shaft that is driven to rotate by driving the motor, a guide rail fixed to the main shaft, and a ring that has a distal end side of the main shaft inserted therethrough and whose center is eccentrically fixed to the main shaft. A slide fold which is attached to the guide rail and is slidable in the longitudinal direction of the guide rail and has first and second foldable portions which fold on an outer peripheral surface or an inner peripheral surface of the ring member; A moving member, a spindle fixed to the slide folding member, and an elliptical recess formed on the upper surface while being rotated by the rotation of the spindle, into which clay as a raw material of the container is put. And a forming plate fixed to the mold so as to face the inner peripheral surface of the mold at a predetermined interval.

The fourth invention (the invention according to claim 4)
In the first, second or third aspect of the present invention, the ring member is slidable from a tip end of the forming plate in a direction of an inner peripheral surface of the mold or in a direction opposite thereto. is there.

A fifth invention (an invention according to claim 5)
In the first, second, third or fourth invention, the molded plate is characterized in that the distance between the tip of the molded plate and the inner peripheral surface of the mold can be changed. It is.

The sixth invention (the invention according to claim 6)
Relates to an elliptical container, wherein the first, second,
It is characterized by being molded by the molding device for an oval container according to the third, fourth or fifth invention.

The elliptical container constituting each of the first to sixth aspects of the present invention refers to a pot, a pot, a dish, a pot, and other containers, and at least the outer shape and a concave portion formed on the inner side are formed. Any shape may be used as long as it has an elliptical shape and can accommodate any object in the concave portion.Furthermore, regardless of whether a handle or the like is attached to the container as a final product, As long as the intermediate produced in 1) has the outer shape and the concave portion formed inside as described above having an elliptical shape, this is also included in the concept of the container.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of an apparatus for forming an oval container according to the present invention (hereinafter simply referred to as a forming apparatus) will be described in detail with reference to the drawings.

As shown in FIG. 1, the molding apparatus 1 includes a casing 2 formed in a rectangular parallelepiped shape, and three enclosing plates 3, 4, 5 formed on an upper portion of the casing 2, A plate 6, a forming plate supporting device 7 for supporting the forming plate 6, a mold supporting member 8 driven to rotate on the housing 2, and a mold supporting member 8
And a mold 9 supported by the mold.

The housing 2 includes a front plate 2a and a left plate 2b.
, A right side plate and a back side plate (not shown), and a top plate 2c, and a driving mechanism described later is provided inside. In addition, the three shrouds 3, 4, 5
Are formed to stand upward from the upper ends of the left side plate 2b, the right side plate and the back plate (not shown), respectively. Also,
The molded plate supporting device 7 is a top plate 2 that constitutes the housing 2.
c, which is provided on the rear end side, as shown in FIG. 2, a cylindrically shaped support post 10 and a base end fixed to the upper end side of the support post 10, An abutment plate 11 protrudes in a direction perpendicular to the length direction, and an arm 12 whose base-side halfway portion is rotatably supported by the upper end of the support column 10. Two protruding pieces 13 (the right protruding piece is not shown) are formed at the upper end of the support column 10, and a bolt insertion hole (not shown) is formed on the upper end side of these protruding pieces 13. Has been drilled,
An unillustrated bolt insertion hole is also formed in a base-side halfway portion of the arm 12, and the arm 12 is inserted between the two projecting pieces 13 by a bolt 14 inserted into these bolt insertion holes.
Is supported rotatably about a shaft (not shown) of the bolt 14. The arm 12 has a weight 1 at one end.
2a is formed, and the arm 12 is attached at the tip to the bolt 1
Gripper 12 for the operator to rotate about the axis 4
b is formed, and the halfway portion is formed into a flat shape, and the halfway portion has an elongated hole 12 c in the length direction of the arm 12.
Are formed. A sliding plate 15, which is slid and guided in the longitudinal direction of the arm 12 by the elongated hole 12 c, is provided in the middle of the arm 12 and on the right side.
Is provided. This slide plate 15 is attached to the arm 12
A shaft (not shown) is inserted into the elongated hole 12c from the left side of the arm 12 and is supported by the arm 12 by one and the other screws 16, 16 whose head diameter is longer than the width of the elongated hole 12c.

The molded plate 6 constituting the present invention is fixed to the left side surface of the slide plate 15 guided by the long hole 12c. The upper end of the molded plate 6 is formed in a rectangular shape, and the lower end of the molded plate 6 is formed with a molding surface 6a for molding the shape of the inner peripheral surface of the elliptical container. In addition,
In the present embodiment, the molding surface 6a includes an arc-shaped portion 6b and a horizontal portion 6c for molding the upper surface of the bottom of the elliptical container. A position adjusting member 17 is screwed on the base end side of the arm 12 and slightly on the distal end side from the position where the two projecting pieces 13 are formed. The position adjusting member 17 includes a shaft 17b having a screw 17a threaded on the lower end and a lower end abutting on the upper surface of the contact plate 11, and a rotating operation unit formed on the upper end of the shaft 17b. 17c. That is, the position adjusting member 17 is turned by the turning operation of the turning operation portion (handle) 17c.
By adjusting the lower end position of b, the vertical position of the forming plate 6 is adjusted.

Therefore, according to the forming plate supporting device 7 constituting the forming device 1 according to this embodiment, the operator holds the holding portion 12b formed at the tip of the arm 12 and rotates vertically. By operating the arm 12
Is turned around the axis of the bolt 14, and the turning operation causes the forming plate 6 to move in the direction of a mold 9 described later and the mold 9.
Can be moved in a direction away from the camera. And
When the arm 12 is moved in the direction of the mold 9, the lower end of the shaft portion 17b constituting the position adjusting member 17 comes into contact with the upper surface of the contact plate 11, whereby the position of the forming plate 6 is fixed. Is done. Further, the fixing position of the formed plate 6 is as follows.
The turning operation of the turning operation part 17c constituting the position adjusting member 17 is adjusted in a direction away from the mold 9 or in the opposite direction, and the turning operation of the one and other screws 16, 16 causes the arm 12 to rotate. In the length direction (the direction away from the inner peripheral surface of the mold 9 or the opposite direction). In particular, by adjusting the forming plate 6 in the length direction of the arm 12,
The thickness of the elliptical container formed by the mold 9 and the forming plate 6 can be appropriately changed.

On the upper surface of the top plate 2c constituting the casing 2, a mold supporting member 8 supported by a support shaft constituting a driving mechanism described later provided in the casing 2 is provided. Have been. The mold support member 8 is formed integrally with gypsum, and has a concave portion 8a formed inside. A mold 9 whose bottom is inserted into a concave portion 8 a formed in the mold support member 8 is placed on the mold support member 8. The mold 9 is a gypsum mold integrally formed of gypsum similarly to the mold support member 8 described above. An elliptical concave portion 9a is formed to form an outer surface of the elliptical container having a predetermined thickness, and a flange portion 9b having a bottom surface mounted on the upper surface of the mold supporting member 8 is formed on the outer periphery. Have been.

The rotating mechanism provided in the housing 2 while rotating the mold support member 8 described above is shown in FIG.
Alternatively, as shown in FIG. 4, a driving motor 20 disposed in the housing 2, a driven pulley 21 that is driven to rotate by the driving motor 20, and a main shaft 22 fixed to the center of the driven pulley 21. It has. The drive motor 20 is an electric motor. As shown in FIG. 1, a front plate 2a of the housing 2 has an in-switch 1a for turning on power supply and an OF switch.
A switch box 1c having an F switch 1b is provided. In the molding apparatus 1 according to the present embodiment, the ON / O of the drive motor 20 is turned on with a foot during the molding operation.
A foot switch 1d is also provided to enable FF operation. The rotation shaft 20 that constitutes the drive motor 20
A drive pulley 23 is fixed to a, and a belt 24 is stretched from the drive pulley 23 to the driven pulley 21. The main shaft 22 has a lower end and an upper end rotatably supported by bearings (not shown). A guide rail 25 is fixed to an upper end of the main shaft 22, and a slide member is attached to the guide rail 25. 2
6 is provided slidably in the length direction of the guide rail 25. The guide rail 25 has a length in the horizontal direction, and has groove portions 25a, on which ball bearings 26a, 26b disposed in the slide member 26 rotate, on both side surfaces as shown in FIG. 25b are formed. As shown in FIG. 5, the sliding member 26 has a horizontal portion 26c facing the upper surface of the guide rail 25 and a side surface of the guide rail 25 which is suspended from one end of the horizontal portion 26c. It comprises one opposed hanging part 26d and another hanging part 26e which is suspended from the other end of the horizontal part 26c and faces the other side surface of the guide rail 25, and is formed in a substantially U-shape. The ball bearings 26a and 26b are rotatably disposed inside the one and other hanging portions 26d and 26e.

A ring member 27 constituting a rotating mechanism is fixed in the casing 2 constituting the molding apparatus 1 as shown in FIGS. This ring member 27
In the present embodiment, a circular ring portion 27a provided so as to surround the guide rail 25 provided with the slide member 26 from the outside, and the ring portion 27a
Fixing piece 27b protruding leftward from the lower surface of
And the other fixing piece 27c protruding rightward from the lower surface of the ring portion 27a. The ring 27a is fixed at a position whose center is eccentric with respect to the main shaft 22. Further, as shown in FIG. 4, long holes 27d and 27e are formed in the one and the other fixing pieces 27b and 27c, respectively, and the long holes 27d and 27e are formed.
It is fixed to the main forming apparatus 1 via bolts 30 and 31 inserted therein, and the center of the ring portion 27a is further eccentric than the main shaft 22 by the elongated holes 27d and 27e, or the opposite direction (ellipse). (The length direction of the two fixed points of the shaped container).

A sliding member 32 is fixed to the upper surface of the slide member 26. This folding member 32
The lower surface is fixed to the upper surface of the slide member 26, and has a horizontal plate portion 32a having a length substantially equal to the outer diameter of the ring portion 27a constituting the ring member 27; A first foldable plate portion 3 which is suspended from one end and whose inner peripheral surface folds on the outer peripheral surface of the ring portion 27a.
2b, and a second foldable plate portion 32c that hangs down from the other end of the horizontal plate portion 32a and folds on the outer peripheral surface of the ring portion 27a. The overall shape is substantially U-shaped. Have been. Then, on the upper surface of the folding member 32,
The lower end of the support shaft 33 is fixed, and the support shaft 33 has an intermediate portion inserted through a through-hole (not shown) formed in the top plate 2 c constituting the housing 2, and the upper end thereof is the mold. A mold support member 8 for supporting the lower surface 9 from below is fixed. That is, a screw 33 a is threaded on the upper end side of the support shaft 33, and the insertion hole 8 formed in the concave portion 8 a of the mold support member 8 is formed.
A nut 34 inserted into the mold b is screwed, and the support shaft 33 and the nut 34 fix the mold supporting member 8.

Hereinafter, the operation of the molding apparatus 1 according to the above configuration will be described in order. First, the main switch 1a provided on the front plate 2a of the housing 2 is turned on, and the foot switch 1d is operated with a foot to drive the drive motor 20. The driven pulley 21 rotates via the belt 24 by the driving of the drive motor 20, and the main shaft 22
Rotates. At this time, the rotation of the main shaft 22 causes the guide rail 25, the slide member 26, and the sliding member 32.
And the support shaft 33 rotate together, but the inner peripheral surfaces of the first and second sliding plate portions 32b and 32c constituting the sliding member 32 are
Since the main shaft 22 is slid on the outer peripheral surface of the ring portion 27a of the ring member 27, the center of which is eccentric, the slide member 2 to which the slidable member 32 is fixed is attached.
6 moves in the length direction of the guide rail 25 while being guided by the guide rail 25. Therefore, the folding member 3
The support shaft 33 fixed to 2 moves in the direction of the forming plate 6 or in the opposite direction while rotating. On the other hand, on the support shaft 33,
Since the mold 9 supported by the mold support member 8 is attached, the rotation of the support shaft 33 causes the mold 9 to rotate. Therefore, the distance between the inner surface of the elliptical concave portion 9a formed in the mold 9 and the fixed forming plate 6 is always constant. That is, by the rotation of the main shaft 22, the trajectory of the elliptical concave portion 9a formed on the mold 9 is in a state shown by a solid line as shown in FIG. When rotated from the closest position, the state shown by a dashed-dotted line is reached.
(The position of the support shaft 33 is the position farthest from the forming plate 6). That is, when the main shaft 22 rotates counterclockwise, the center of the mold 9 (the position of the support shaft 33) is positioned as shown in FIG.
As shown in the figure, the body moves while rotating from X ₁ to X ₂ to the position of X ₃ , so that the molding plate 6 and the inner surface of the elliptical concave portion 9 a formed in the mold 9 always have a fixed distance. Done.

Therefore, when clay as a raw material of an elliptical container is put into the mold 9, the clay C is moved by the fixed forming plate 6 and the rotating mold 9 as shown in FIG. It is gradually attached to the inside of the elliptical concave portion 9a formed in the mold 9 with a certain thickness, and is molded as an elliptical container. When the thickness of the elliptical container is to be reduced, for example, the thickness is adjusted so that the forming plate 6 approaches the inner peripheral surface of the mold 9 by rotating the one and other screws 16 and 16 described above. On the other hand, if the thickness is to be increased, it may be adjusted in the direction of separation. When the thickness of the bottom of the oval container to be formed is changed by adjusting the height of the forming plate 6, the turning operation portion 17c constituting the position adjusting member 17 is turned. The lower end position of the shaft portion 17b may be adjusted. When changing the size of the elliptical container formed by the forming apparatus 1, the size of the concave portion 9a formed in the mold 9 is changed, and the forming plate 6 is slid to an arbitrary position. Just do it.

As described above, according to the molding apparatus 1 according to the above embodiment, the main shaft 22, the guide rail 25, the slide member 26, the sliding member 32, and the fixed ring member are driven by the drive motor 20. 27 having a concave portion 9a formed into an elliptical shape by a rotating mechanism comprising
Since the mold 9 can be rotated while the molding end surface 6a of the fixed molding plate 6 and the concave portion 9a facing this end surface are always kept at a fixed distance, a conventionally used circle is used. An elliptical container can be produced very easily, as in a molding device having a concave part of a shape. Especially,
In this molding apparatus 1, the fixing position of the molding plate 6 can be changed and adjusted in the direction away from the inner circumference where the concave portion 9a of the mold 9 is molded and in the opposite direction. Can be appropriately changed, and the thickness of the bottom of the oval container to be formed can be easily changed by the rotation operation of the rotation operation portion 17c constituting the position adjusting member 17.

Further, when the size of the elliptical container is changed (especially so as to approach a circular shape or move away from the shape), the size of the concave portion 9a formed in the mold 9 is changed. If the center of the ring member 27 is brought closer to the center of the main shaft 22 through the elongated holes 27d and 27e, the fixed position of the ring member 27 can be a perfect circle or an elliptical container close to a perfect circle. If it is separated from 22, an elongated elliptical container can be obtained. Further, in the molding apparatus 1, the guide rail 25 fixed to the upper end of the main shaft 22 is used.
And the slide member 2 provided on the guide rail 25
Since 6 is provided inside the fixed ring member 27, the height of the entire rotation mechanism can be reduced.

In the molding apparatus 1 described above, the spindle 22
A guide rail 25 fixed to the upper end of the guide rail 25 and a slide member 26 provided on the guide rail 25 are provided inside a fixed ring member 27, and the slide member 26 and the slide member 32 are separately formed. However, the present invention is not limited to the above-described configuration. For example, the guide rail 41 and the sliding member 42 may be configured as in a modification of the rotation mechanism shown in FIG. May be provided above the fixed ring members 43, respectively. In other words, the rotating mechanism includes a driven pulley 47 that rotates via a belt 46 by driving a drive motor (not shown), a main shaft 48 fixed to the center of the driven pulley 47, and a center eccentric with the main shaft 48. The position of the ring member 43, a guide rail 41 above the ring member 43 and fixed to the upper end of the main shaft 47, and sliding in the longitudinal direction of the guide rail 41 and the ring member 43. Slide member 42 having first and second foldable portions 42a and 42b that rotate while the inner peripheral surface thereof folds on the outer peripheral surface of the slide member 42, and a fixing member 49 fixed to the center of the slide slide member 42. And a support shaft 50 fixed to the upper surface of the fixing member 48 and to which a mold supporting member for supporting a mold (not shown) is fixed. It is intended.

The ring member 43 includes a small-diameter lower ring portion 43a formed on the lower side and a lower-diameter lower ring portion 43a.
An upper ring portion 43b formed at an upper part of the upper ring portion and having a larger diameter than the lower ring portion 43a;
Fixing piece 43c protruding leftward from the lower end of
And the other fixed piece 43d protruding rightward. The one and the other fixed pieces 43c and 43d include:
A long hole 43 for adjusting the position of each ring member 43 in the same manner as the molding apparatus 1 according to the above-described embodiment.
e, 43f are formed. The guide rail 41 is disposed above the ring member 43. Grooves 41a for rotating a ball bearing (not shown) are formed on both side surfaces in the length direction of the ring member 43. ing. The slidable member 42 is slidable in the length direction of the guide rail 41, and an inner peripheral surface of the slidable member 42 is in contact with an outer peripheral surface of an upper ring portion 43b constituting the ring member 43 at one end. One of the folds 42a hangs down and the other end is the upper ring 43
The other fold portion 42b whose inner circumferential surface folds is formed on the outer circumferential surface of b. And in the center of this sliding member 42,
A U-shaped fixing member 48 is fixed, and a support shaft 50 is fixed to the center of the upper surface of the fixing member 49. On the outer peripheral surface side of the ring member 43, a large number of roller bearings 43e each having a part of the peripheral surface exposed on the outer peripheral surface are provided.
On the inner surfaces of the a and b, wear-resistant metals 42c and 42c whose inner surfaces fold the peripheral surfaces of the plurality of roller bearings 43e.
42d is fixed.

In the rotating mechanism having the above-described structure, a mold (not shown) and a mold supporting member for supporting the mold are provided in the same manner as the rotating mechanism constituting the molding apparatus 1 according to the embodiment. It can be rotated so that the forming surface of the forming plate not to be formed and the inner peripheral surface (formed into an ellipse) of the mold facing the forming plate always have an integral interval. In particular, in this rotating mechanism, the foldable member 42 has first and second foldable portions 42a and 42b which fold on the outer peripheral surface of the ring member 43 and is slidable with respect to the guide rail 41. Therefore, there is no need to provide a slide member as in the molding apparatus 1 according to the above-described embodiment, and the number of components can be reduced.

[0029]

As is apparent from the above description of the embodiment of the invention, according to the elliptical container forming apparatus of the present invention, the main shaft, the guide rail, the slide member, and the fold are driven by the drive motor. By the moving member and the fixed ring member, the mold can rotate the mold while always keeping a fixed distance between the molding surface of the fixed molding plate and the concave portion facing the molding surface. An elliptical container can be manufactured very easily, similarly to a molding device having a circular concave portion conventionally used.

In particular, the second invention (the invention according to claim 2)
In the above, the guide rail is provided inside the ring member, and the inner peripheral surface of each of the first fold portion and the second fold portion formed on the fold member is the ring member. , The height of the entire device can be reduced.

The third invention (the invention according to claim 3)
According to this, the sliding foldable member is attached to the guide rail so as to be slidable in the longitudinal direction of the guide rail, and slidably contacts the outer peripheral surface or the inner peripheral surface of the ring member. Since the slide member and the foldable member are integrated as compared with the first aspect, the number of parts can be reduced.

The fourth invention (the invention according to claim 4)
Then, since the ring member is slidable in the direction of the inner peripheral surface of the mold or in the opposite direction from the tip of the molding plate, the size of the elliptical container to be molded can be appropriately changed.

A fifth invention (an invention according to claim 5)
Then, since the distance between the tip of the molded plate and the inner peripheral surface of the mold can be changed, the thickness of the elliptical container to be molded can be appropriately changed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an apparatus for forming an elliptical container according to an embodiment of the present invention.

FIG. 2 is a side view showing a molded plate supporting device.

FIG. 3 is a perspective view showing a rotation mechanism constituting the molding device for the elliptical container shown in FIG.

FIG. 4 is a side view showing, in partial cross section, a rotation mechanism constituting the molding device for the elliptical container shown in FIG.

FIG. 5 is a sectional view of a guide rail and a slide member.

FIG. 6 is a schematic diagram illustrating a locus of rotation of an elliptical concave portion formed in a mold by a rotation mechanism.

FIG. 7 is a side view showing a modification of the rotation mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Forming apparatus of elliptical container 6 Forming plate 9 Mold 20 Drive motor 22 Main shaft 25 Guide rail 26 Slide member 27 Ring member 32 Folding member 33 Support shaft 41 Guide rail 42 Sliding member 43 Ring member 47 Main shaft 50 Support shaft

Claims (6)

[Claims] 1. A motor, a main shaft rotatably driven by driving the motor, a guide rail fixed to the main shaft, and a slide attached to the guide rail and slidable in the length direction of the guide rail. A member, a tip end of the main shaft is inserted therethrough, and the center is a ring member fixed eccentrically to the main shaft, and a ring member fixed to the slide member and slidably contacts an outer peripheral surface or an inner peripheral surface of the ring member. A foldable member having first and second foldable portions, a spindle fixed to the foldable member, and an elliptical recess formed on the upper surface while being rotated by rotation of the support shaft. A mold into which the clay, which is the raw material of the container, is charged, and a molding plate fixed to the inner peripheral surface of the mold so as to face the mold at a predetermined interval. Molding equipment Place. 2. The guide rail is provided inside the ring member, and a first fold portion and a second fold portion formed on the fold member are both inner peripheral surfaces. 2. The molding device for an elliptical container according to claim 1, wherein the outer surface of the ring member is slid on the outer peripheral surface of the ring member. 3. A motor, a main shaft rotatably driven by driving the motor, a guide rail fixed to the main shaft, a front end of the main shaft being inserted, and a center eccentrically fixed to the main shaft. And a first and a second foldable portion attached to the guide rail and slidable in the length direction of the guide rail and slidable on an outer peripheral surface or an inner peripheral surface of the ring member. A slide folding member, a spindle fixed to the slide folding member, and an elliptical recess formed on the upper surface while being rotated by the rotation of the spindle. Characterized in that it comprises: a mold into which is charged, and a molding plate fixedly opposed to the inner peripheral surface of the mold at a predetermined interval. 4. The elliptical container according to claim 1, wherein the ring member is slidable from a tip of the forming plate in a direction of an inner peripheral surface of the mold or in a direction opposite thereto. Molding equipment. 5. The elliptical container according to claim 1, wherein a distance between a tip of the molded plate and an inner peripheral surface of the mold is changeable in the molded plate. Molding equipment. 6. An elliptical container molded by the elliptical container molding apparatus according to claim 1, 2, 3, 4, or 5.