JPH0911196A - Manufacture of columnar body of soft elastic body and device thereof - Google Patents

Abstract

PURPOSE: To easily form a long columnar body out of a soft elastic body by sliding a material in the direction of a cylindrical cutter and circular cutters, rotating the cylindrical cutter while the material is pressed against these cutters, and receiving the columnar body in a cylinder while cutting the pressed material into a columnar diameter. CONSTITUTION: In the condition of rotating a cylindrical cutter 4 by driving a motor 6 and simultaneously rotating circular cutters 10, a material 11 of soft elastic body is opposed to the edge on the extreme end of the cylindrical cutter, and the material 11 is pressed against the cutters. Then the material 11 is divided into an object entering a cylinder of the cylindrical cutter 4, and an object along an outer circumferential part, and the object entering the cylinder is formed into a columnar body. Meanwhile, the object along the outer circumferential part is cut off in the lengthwise direction by the rotating circular cutters 10. By cutting by means of the circular cutters 10, feed operation of the material 11 is prevented from being obstructed because the outer circumferential part of the material is brought in contact with the sprocket wheel 5 and the like of the cylindrical cutter 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a columnar body of a soft elastic material such as rubber or EVA.

[0002]

2. Description of the Related Art Conventionally, a material having a diameter larger than a desired diameter is cut by the method shown in FIG. In this cutting method, both ends of a cylindrical or prismatic material 1 are held and rotated by rotating shafts 2 and 2, a tip of a blade 3 is applied to the peripheral surface of the material 1, and a tip of the blade 3 is sequentially slid. This is a method of finishing the material 1 into a cylinder.

[0003]

In this method, the material 1
Since it is made of a soft elastic material, when both ends are supported by the rotating shaft, the material 1 bends if it is long and it is very difficult to cut it to the same diameter, and only a short cylindrical body can be manufactured.

It is an object of the present invention to provide a method and an apparatus for easily forming a long columnar body as well as a short columnar body with a soft elastic body.

[0005]

[Means for Solving the Problems] A tip end opening edge forms a blade, and a rotating cylindrical blade is provided close to the outer periphery of the cylindrical blade,
And, a circular blade that rotates in an imaginary plane that passes through the central axis of the tubular blade, or a blade that is arranged and fixed in a radial manner with respect to the outer peripheral surface of the tubular blade, facing the material of the soft elastic body. , The tubular blade, and, in the direction of the fixed blade or circular blade, slide in the direction of the fixed blade, while cutting a part of the material with the tubular blade to press into the tubular blade to form a cylindrical body,
At the same time, the outer peripheral portion of the pressed portion of the material is cut and separated in the longitudinal direction by the circular blade or the fixed blade to manufacture a columnar body of a soft elastic body.

[0006]

[Function] The material slide mechanism slides the material in the direction of a cylindrical blade, a circular blade, or a fixedly arranged blade, and presses the material against the blades. The cylindrical blade is rotated and pressed. While cutting the material into a cylindrical diameter, the cylindrical body is placed inside the cylinder. A circular blade or a blade arranged and fixed in a radial shape sequentially cuts and separates the outer peripheral portion of the formed cylindrical body in the longitudinal direction in the pressed material.

[0007]

An embodiment according to the present invention will be described with reference to the drawings. A string 9 or a belt is suspended between a sprocket wheel 5 attached to a tubular cutter 4 having a tubular shape and a blade formed at one end, and a sprocket wheel 8 attached to a rotating shaft 7 of a motor 6 to suspend the motor 6. The tubular blade 4 is rotated by the operation.

The cylindrical blade 4 is supported by a support (not shown) via a bearing (not shown).

Further, in contact with the tip of the cylindrical blade 4 and
A circular blade 1 that rotates on an imaginary plane that passes through the center line of the cylindrical blade 4.
0 is provided. One or more circular blades 10 are provided. It is preferable that the outer peripheral tip of the circular blade 10 slightly protrudes from the tip blade of the tubular blade 4. The circular blade 10 is rotated by interlocking with the rotation of the rotating shaft of the motor 6 using a gear, a sprocket wheel, a string (not shown), or is rotated by a separate motor.

When using this device, the cylindrical blade 4
Is rotated by the motor 6 and at the same time the circular blade 10 is rotated so that the soft elastic material 11 faces the blade at the tip of the tubular blade 4, and the material 11 is slid toward the blade to face the rotating blade. And push.

The raw material 11 is divided into a material that enters the inside of the cylindrical blade 4 while being cut and an outer peripheral portion thereof. The material that enters the cylinder forms a cylindrical body, and the outer peripheral portion rotates the circular blade 10. Is cut in the longitudinal direction. This cutting with the circular blade 10 prevents the outer peripheral portion of the material 11 from coming into contact with the sprocket wheel 5 or the like of the tubular blade 4 and preventing the material 11 from sliding. The operation of the device may be stopped, the cylindrical body may be taken out, and cut into a desired length.

FIG. 2 shows an apparatus using a fixed blade 12 instead of the circular blade 10 of the embodiment shown in FIG. The fixed blade 12 has a through hole, the cylindrical blade 4 is inserted through the through hole, and the front surface of the fixed blade 12 faces the front end of the cylindrical blade 4 1
Alternatively, it has a plurality of blades 13 in the shape of a center of gravity. It is preferable to incline the front surface of the base of the fixed blade 12 in a conical shape. The fixed blade 12 is supported by the support 14 and does not rotate.

When this apparatus is used, as in the case of the above-described embodiment, the material 11 is slid toward the tip of the rotating cylindrical blade 4 and pressed, so that the material 11 is cut and cut. The part enters the cylindrical blade 4, and the outer peripheral part is pushed and cut by the blade 13 in the longitudinal direction. Since the outer peripheral portion cut by this cutting goes away from the cylindrical blade 4, the material is not prevented from sliding.

The cylindrical blade 4 having various diameters is prepared. When replacing with a different caliber, the sprocket wheel 5 and the fixed blade 12 that match are replaced. Also, the rotational position of the circular blade 10 is adjusted.

[0015]

According to the method and apparatus of the present invention, a columnar body having a desired length and short diameter and a desired diameter can be easily manufactured from a soft elastic material.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a main part of an embodiment of an apparatus according to the present invention.

FIG. 2 is an explanatory view of a main part of another embodiment of the device according to the present invention.

FIG. 3 is an explanatory view of a conventional method for manufacturing a cylindrical body.

[Explanation of symbols]

 1 material 2 rotary shaft 3 blade 4 cylindrical blade 5 sprocket wheel 6 motor 7 rotary shaft 8 sprocket wheel 9 string 10 circular blade 11 material 12 fixed blade 13 blade 14 support

Claims (3)

[Claims] 1. A rotating cylindrical blade having a tip opening edge forming a blade, and a circular blade which is close to the outer periphery of the cylindrical blade and rotates on an imaginary plane passing through the central axis of the cylindrical blade, or , The blade which is arranged and fixed in a radial manner with respect to the outer peripheral surface of the cylindrical blade, is made to face the material of the soft elastic body, and is slid in the cylindrical blade or the circular blade or the fixed blade direction. , While cutting a part of the material with a cylindrical blade to press into the cylindrical blade to form a cylindrical body, at the same time the outer peripheral portion of the pressed portion of the material in the longitudinal direction with the circular blade or a fixed blade. A method for producing a columnar body of a soft elastic body, characterized by cutting and separating. 2. A rotating cylindrical blade whose one opening edge forms a blade and a rotating outer cutting edge are close to the outer peripheral surface of the cylindrical blade and pass through the central axis of the cylindrical blade. One or a plurality of circular blades that rotate in a virtual plane, a drive mechanism that rotates the tubular blade and the circular blade, and a soft elastic material slide in the blade blade direction in correspondence with the cylindrical blade and the circular blade. An apparatus for manufacturing a columnar body of a soft elastic body, characterized by comprising: 3. A rotating cylindrical blade having one opening edge forming a blade, a drive mechanism for rotating the cylindrical blade, and a radial arrangement with respect to the outer peripheral surface of the cylindrical blade. In addition, one or a plurality of blades and a mechanism for sliding the material of the soft elastic body in the direction of the blades corresponding to the cylindrical blade and the fixed blade are provided. Machine for manufacturing cylinders.