JPH0871804A - Manufacture of sphere and device therefor - Google Patents

Abstract

PURPOSE: To obriate the kill fullness and generate no recession and hole to a sphere after cutting so as not require cutting. CONSTITUTION: The opening of a container 2, and a cutting member 6 or 15 with the filing face or the cutting edge are opposed to each other with either one placed above, and cut material 1 larger than a sphere to be completed is placed between the container 2 and the cutting member 6 or 15. While pressing the cut material 1 by either one or both of the container 2 and cutting member 6 or 15, the container 2 is rotated horizontally, and the cutting member 6 is rotated horizontally, or the cutting member 15 is rotated vertically. While being automatically rolled, the cut material 1 is cut by the filing face or cutting edge of the cutting member 6 or 15 to form a sphere. In the case of rotating the container 2 and the cutting member 6 horizontally, it is desirable to rotate them reversely.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sphere manufacturing method and a device for forming spheres such as balls by cutting.

[0002]

2. Description of the Related Art Conventionally, in order to manufacture a sphere by cutting a cutting material such as wood or synthetic resin foam, the cutting material is supported and rotated at two symmetrical points, and the tip of a cutting tool is pressed against it. It is cutting.

[0003]

SUMMARY OF THE INVENTION In the above-mentioned conventional method,
In order to cut a cutting material into a sphere, a very skilled technique is required. Also, even if you have skillful skills,
Since it is not possible to cut at two points that support the cutting material, it is necessary to change the position at which it is supported. In that case, since the recess or hole due to the tip of the support tool remains at the last support point, the recess or the like must be filled with another material or re-cut.

It is an object of the present invention to provide a method and an apparatus for manufacturing a sphere that does not require skill and is free from dents and holes in the sphere after cutting and does not need to be re-shaved. .

[0005]

[Means for Solving the Problems] An opening of a container and a cutting member having a file surface or a blade are made to face each other, and a cutting material larger than a sphere to be completed is cut into the container and the cutting material. While sandwiching it with a member, pressing the cutting material with either or both of the container and the cutting member, horizontally rotating the container and horizontally or vertically the cutting member, while automatically rolling the cutting material. The sphere is formed by cutting with the file surface or the blade. When the container and the cutting member are horizontally rotated, it is preferable to rotate them in reverse.

[0006]

[Function] The container and the cutting member sandwich the cutting material, the container rotates horizontally, the cutting member rotates horizontally or vertically, and the container and the cutting member roll the cutting material, The cutting member sequentially cuts the cutting material from its corners to make the cutting material spherical. If the bottom of the container is a file,
The bottom surface also scrapes the cutting material to promote spheroidization. When the container and the cutting member are horizontally rotated in the reverse direction, rolling of the cutting material is smoothed and spheroidization of the cutting material is promoted.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described based on an embodiment of a manufacturing apparatus shown in the drawings.

A rotary shaft 3 is provided below a container 2 having a shallow bottom on which the cutting material 1 is placed, and a pulley 4 is attached to the rotary shaft 3.

Above the container 2, a cutting member 6 whose lower surface 6a forms a file surface is vertically movably attached to the lower end of the rotary shaft 5, and a pulley 7 is attached to the rotary shaft 5.

It is preferable that an elastic body 8 such as a spring or a leaf spring is attached to the rotary shaft 5 between the pulley 7 and the cutting member 6 to urge the cutting member 6 downward. Container 2
May be biased toward the cutting member 6 direction.

A belt 12 or a string or a chain is installed between the pulley 4 and a pulley 11 attached to a rotary rod 10 connected to a rotary shaft of a motor 9, and a pulley 7 is provided.
And the belt 14 on the pulley 13 attached to the rotating rod 10.
Or install a string or chain.

The container 2 and the cutting member 6 may be rotated by connecting the respective rotary shafts 3 and 5 to the rotary shafts of individual motors.

The file surface of the lower surface 6a of the cutting member 6 may be a flat surface as shown in FIG. 3, but as shown in FIG.
It is preferable to provide a spherical concave surface 6b and use that surface as a file surface.

The rotating shafts 3 and 5 are supported by a supporting member (not shown).

FIG. 2 shows an outline of an apparatus using a cutting member 15 instead of the cutting member 6. The cutting member 15 has a shape in which a cylindrical body that rotates in the vertical direction above the container 2 is laid down, and the peripheral surface 15a is a file surface.

The cutting member 15 may be a cylindrical body as shown in FIG. 4, but as shown in FIG. 2, it is provided with arcuate recessed surfaces 15a at the top and bottom in a longitudinal cross section so as to have a three-dimensional drum shape. Is preferred. The cutting member 15 is also an elastic body (not shown)
It is preferable to urge downward with. Container 2 for cutting member 1
It may be configured to urge in five directions.

As shown in FIG. 5, the bottom surface 2a of the container 2 is
It may be a spherical concave surface 2b. The bottom surface 2a or the recessed surface 2b of the container 2 is also preferably a file surface.

It is preferable that a part of the rotary shaft 3 of the container 2 is made of a spring-like elastic body, and when the container 2 is rotated by the rotation of the rotary shaft 3, the peripheral edge of the bottom surface 2a is gradually raised and lowered.

In the apparatus shown in FIG. 1, the container 2 and the cutting member 6 may rotate in the same direction, but the rotating shaft 10
It is preferable that a gear is combined and attached to and the gear is connected to the pulley 13 so that the rotating direction of the cutting member 6 is opposite to the rotating direction of the container 2.

Instead of providing a filing surface on the cutting member 6 or 15, the lower surface of the cutting member 6 or the cutting member 15
A blade may be provided on the outer peripheral surface of the.

In any of the above embodiments, the container 2
With its opening, the bottom surface 2a or the file surface of the recessed surface 2b facing downward, and below the lower surface 6a of the cutting member 6
Alternatively, the recessed surface 6b faces upward, or the cutting member 1
The container 2 may be positioned above and the cutting member 15 may be positioned below, with the peripheral surface 15a or the recessed surface 15b of 5 facing each other.

Cutting member 6 or 15 or container 2
Instead of being urged downwards or upwards by an elastic body, it may be moved downwards or upwards by using another mechanism, for example, a gear or a crank arm interlocked with the motor 9.

In order to make the cutting material 1 into a sphere using these devices, the cutting material 1 having a volume slightly larger than the entire outer shape of the sphere to be completed is put in the container 2. When the container 2 is located below the cutting member 6 or 15,
The cutting material 1 is sandwiched between the container 2 and the cutting member 6 or 15. The cutting material 1 may have any form such as a cube, a rectangular parallelepiped, and a columnar body, but it is preferable that the cutting material 1 is a polyhedron with the corners thereof cut.

At this time, the cutting member 6 or 15 is urged downward or upward by the elastic body, and the lower surface 6a or the peripheral surface 15a presses the cutting material 1 toward the bottom surface 2a or the recessed surface 2b of the container 2. . When the container 2 is biased by the elastic body, the bottom surface 2a or the recessed surface 2b of the container 2 presses the cutting material 1 toward the cutting member 6 or 15.

Next, when the motor 9 is operated to rotate the container 2 and the cutting member 6 or 15, the file surface or the blade of the cutting member 6 or 15 scrapes the corner of the cutting material 1 to cause the container 2 to move. When the bottom surface is also a file surface, the file surface is also cut from the corner of the cutting material 1.

As the corners of the cutting material 1 are removed, the cutting material 1 rolls in the container 2 and the cutting member 6 or 15 is cut.
Is rounded by. After a predetermined time has passed, the cutting material 1 becomes a sphere.

If the motor 9 is connected to a timer and a predetermined time is set in the timer, the motor 9 will automatically start operating and stop.

If the lower surface 6a of the cutting member 6 is provided with a spherical recess surface 6b and the cutting member 15 is provided with a recess surface 15b, or if the bottom surface of the container 2 is a spherical recess surface 2b, the recess The surface 6b, 15b or 2b cuts the corner of the cutting material 1 quickly and efficiently.

When the horizontal rotation directions of the container 2 and the cutting member 6 are reversed, the cutting material 1 is placed between the bottom surface of the container 2 and the sanding surface 6a of the cutting member 6 as if rolling the rice ball with the palms of both hands. Rolls between them, and the cutting material 1 is efficiently and promptly cut into a spherical shape.

When the container 2 is supported via the elastic body, as described above, the peripheral edge of the bottom surface of the container 2 rotates while sequentially moving up and down, so that the cutting material 1 rotates in each direction,
Cutting into a spherical shape more efficiently and quickly.

[0031]

EFFECTS OF THE INVENTION The sphere manufacturing method and apparatus according to the present invention do not support the cutting material at two points and cut the cutting material while rolling to form a sphere, so that the surface of the sphere has no recesses or holes due to the support. It does not occur and does not require a special process to fill the recess or hole. In addition, it does not require skill to create a sphere, and the sphere is completed by automatically cutting by putting a cutting material into a container and operating a motor.
Production time is shortened and costs are reduced.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of an apparatus.

FIG. 2 is a schematic explanatory diagram of an apparatus.

FIG. 3 is a schematic explanatory view of a cutting member.

FIG. 4 is a schematic explanatory view of a cutting member.

FIG. 5 is a schematic explanatory view of a container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cutting material 2 Container 2a Bottom surface 2b Cavity surface 3 Rotating shaft 4 Pulley 5 Rotating shaft 6 Cutting member 6a Lower surface 6b Cavity surface 7 Pulley 8 Elastic body 9 Motor 10 Rotating rod 11 Pulley 12 Belt 13 Pulley 14 Belt 15 Cutting member 15a Peripheral surface 15b Recessed surface

Claims (3)

[Claims] 1. An opening of a container and a cutting member having a file surface or a blade are made to face each other, and a cutting material larger than a sphere to be completed is sandwiched between the container and the cutting member. While pressing the cutting material with either or both of the container and the cutting member, the container is rotated horizontally, the cutting member is rotated horizontally or vertically, the cutting material is automatically rolled, and the file surface is used. Alternatively, a method of manufacturing a sphere that is cut with a blade into a sphere. 2. The method for manufacturing a sphere according to claim 1, wherein the container and the cutting member are horizontally and reversely rotated. 3. A container having an opening, a cutting member having a file surface or a blade facing the opening of the container, and either or both of the container and the cutting member, or upward. A sphere manufacturing apparatus comprising: a mechanism that urges or shifts downward, and a drive mechanism that horizontally rotates the container and horizontally or vertically rotates the cutting member.