JP2844559B2 - Rubber caterpillar cutting method and diamond wheel for cutting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cutting a long piece (hereinafter, referred to as "rubber caterpillar") in which rubber and a steel material such as a wire are integrated, and a diamond for cutting a rubber caterpillar. About the wheel.

[0002]

2. Description of the Related Art In general, a rubber caterpillar is a long object, and a wire is buried in a long direction inside the caterpillar. When the rubber caterpillar is discarded, the rubber caterpillar is cut and processed into a size that can be carried around.

[0003] Regarding the cutting of the rubber caterpillar, a cutting method has not been established, and cutting is performed by various various methods. For example, when cutting a rubber and wire portion of a rubber caterpillar, the rubber portion is cut with a cutter (blade), and the wire portion is cut with a grindstone.

[0004]

The technique of cutting the rubber portion with a cutter (blade) and cutting the wire portion with a grindstone as described above is performed by hand when cutting the rubber. It is disadvantageous in that it is expensive, takes a long time to cut rubber and wire by different methods, and is inefficient.

Therefore, it is conceivable to simultaneously cut the rubber portion and the wire portion using a diamond wheel. However, because the diamond wheel rotates at high speed, the rubber comes into contact with the side surface of the diamond wheel and generates frictional heat, which melts the rubber. To prevent the rubber from being cut, thereby making it impossible to cut the rubber.

An object of the present invention is to provide a method for cutting a rubber caterpillar and a diamond wheel for cutting, which can cut the rubber and the wire of the rubber caterpillar at the same time, shorten the cutting time and reduce the cutting work. To provide.

[0007]

The method for cutting a rubber caterpillar according to the first aspect of the present invention is a method for cutting a rubber caterpillar formed by burying a wire in rubber, and a connecting portion is provided at a base portion. By placing a rubber caterpillar on a jig provided with a support portion formed at a position higher than the base portion via the base portion, the rubber caterpillar portion on the support portion of the jig is arranged so as to be higher than other portions. The raised rubber caterpillar portion is cut using a diamond wheel.

[0008] A diamond wheel for cutting according to the invention of claim 2 of the present application is a diamond wheel for cutting used for cutting a caterpillar rubber formed by burying a wire in rubber, and the diamond wheel for cutting has a center. A metal circular substrate in which a mounting hole is formed and a curved portion is formed on both surfaces of the substrate by drawing a curve from a predetermined position toward the outer peripheral side, and a cutout electrodeposited on the outer peripheral portion of the metallic circular substrate. A diamond layer serving as a blade and a cooling hole formed in the substrate are provided.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is to provide a method and a diamond wheel which are effective for cutting a rubber caterpillar which is a long one in which rubber and a steel material such as a wire are integrated. By mounting a rubber caterpillar on a jig provided with a support portion formed above the base portion via a connecting portion, the rubber caterpillar portion on the support portion of the jig is more than other portions. The raised rubber caterpillar portion is cut out using a diamond wheel.

[0010] Therefore, the portion of the rubber caterpillar mounted on the jig is constantly pulled by the other portion of the rubber caterpillar, and when cut with a diamond wheel, the cut rubber portion is removed. As the cutting part is cut at the boundary (that is, at the part on the jig), the distance is increased. Therefore, contact of the diamond wheel with the substrate surface is extremely reduced.

[0011] Further, as described in claim 2, on both sides of the substrate,
When using a diamond wheel with a corrugated part, not only does the rubber part cut by the cutting edge on the periphery of the diamond wheel not touch both surfaces of the substrate, but also synergistic cooling effect by rotation of the diamond wheel, keeping sharpness Is what you do.

[0012]

An embodiment of the present invention will be described below with reference to the drawings. The members, arrangements, and the like described below do not limit the present invention, and can be variously modified within the scope of the present invention.

FIGS. 1 to 5 illustrate the present invention.
FIG. 1 is a schematic side view of a jig according to the present invention, FIG. 2 is an explanatory view showing a state where a rubber caterpillar is mounted on the jig, FIG.
Is an explanatory view showing a state in which a rubber caterpillar is cut by a diamond wheel, FIG. 4 is a front view of the diamond wheel, and FIG. 5 is a sectional view taken along line AA of FIG.

The jig S of the present embodiment includes a base 10 as a base.
, A connecting portion 20, and a supporting portion 30. As shown in FIG. 1 and FIG. 2, a base 10 as a base of the present example has a connection support portion 12 formed substantially at the center of a plate 11. The connection support portion 12 of the present example has a substantially U-shaped cross section and is formed with the opening facing upward. Also, the connection support 12
On the opposite surface 13 (only one surface is shown in FIG. 1), two connection holes 14 are formed.

The connecting portion 20 of the present embodiment includes a pair of connecting rods 23 and 24 comprising a first connecting rod 21 and a second connecting rod 22, and an adjusting rod for connecting these connecting rods 23 and 24 to adjust the height. 4
0.

The second connecting rod 22 has a projection 22a, one end of which is connected to the support portion 30, formed on both sides thereof, and the other end of which is engaged with a connecting hole 21c of the first connecting rod 21, which will be described later. 22b is formed projecting on both sides.

The first connecting rod 21 of the present embodiment has a U-shape, and two first rods 21a connected to the base 20 are formed to face each other, and the two first rods 21a are They are connected by a second rod 21b. A connecting protrusion 26 is formed on the free end side of the first rod 21a so as to project therefrom. The connecting protrusion 26 is pivotally supported by the connecting hole 14 of the base 10.

A connecting hole 21c is formed on the second rod 21b side of the first rod 21a in this embodiment. A screw hole 21d is formed in the center of the second rod 21b. In the present embodiment, the connection protrusion 22b of the second connection rod 22 is movably pivotally supported by the connection hole 21c.

As described above, each connecting rod 23, 2
Connecting projection 2 on the base 10 side of the first connecting rod 21 constituting
6 is pivotally supported by the connecting hole 21c, and the second connecting rod 2
The two connection protrusions 22 a are pivotally supported by connection holes 33 of the support 30.

In this embodiment, the height of the connecting rods 23 and 24 is adjusted and fixed by the adjusting rod 40. The adjusting rod 40 of this example has an operating portion 41 at one end and a screw rod 42 at the other end. The screw rod 42 of the adjusting rod 40 is screwed into the opposing screw hole 21d of the second rod 21b.

The supporting portion 30 of the present embodiment includes a connecting portion 31 having a U-shaped cross section opened downward, a supporting surface 32 disposed above the connecting portion 31, and a connecting hole 3 formed in the connecting portion 31.
And 3. Although the width of the support surface 32 in this example is configured to be smaller than the width of the base 10, the width can be increased within a range that does not impair stability, and the support surface 32 can be attached or detached depending on the type of rubber caterpillar. And can be replaced.

Since the first connecting rod 21 and the second connecting rod 22 are constructed as described above, the first connecting rod 21 and the second connecting rod 22 are connected to the base 10, the supporting part 30, the first connecting rod 21 and the second connecting rod 21. 22 are movable, and the adjusting rod 4
With 0, the height is adjusted and fixed.

In the above configuration, an example in which the first connecting rod 21 is formed in a U-shape has been described, but the first connecting rod 21 and the second connecting rod 2
2 may be connected by another connection shaft or the like. Further, the pivot between the first connecting rod 21 and the base 10 and the pivot between the second connecting rod 22 and the support portion 30 can be connected using another connecting shaft.

Regarding the structure of the jig S, various types of mechanisms can be used. The point is that the height of the connecting portion 20 can be adjusted and fixed at a predetermined height position.
The support part 30 is formed on the upper part, and when the object to be cut is placed on the support part 30, the part placed on the support part 30 is arranged at a position higher than other parts, and the other parts Accordingly, any jig that can be pulled by one or both sides may be used. Therefore, a device for fixing the object to be cut (for example, a locking device such as a clip or a needle) or the like can be arranged on the base 10 side.

The cutting diamond wheel 50 of this embodiment
Is a metal circular substrate 51, as shown in FIGS.
And the diamond abrasive layer 52 as constituent elements.

The mounting hole 53 is formed at the center of the substrate 51 of the present embodiment, and a curve is formed from a predetermined position of the substrate (in this example, approximately half the distance from the end of the mounting hole 53 to the outer periphery of the substrate) toward the outer peripheral side. The corrugated portions 54 are formed on both sides of the substrate. In the vicinity of the diamond abrasive grain layer 52 formed on the substrate 51, a cooling hole 55 made of a round hole for the purpose of cooling effect is provided.
Four (every 15 degrees) are formed.

A diamond abrasive layer 52 serving as a cutting blade is electrodeposited (by electroplating) on the entire outer peripheral portion of the metal circular substrate 51.

Next, a method for cutting the rubber caterpillar K, which is the object to be cut, using the jig S having the above configuration and the diamond wheel 50 will be described. The rubber caterpillar K of this example is a long one in which rubber and a steel material such as a wire are integrated, and is formed by burying a wire in rubber.

First, the jig S is adjusted to a predetermined height. This adjustment is performed by rotating the operation portion 41 of the adjustment rod 40,
The adjustment is performed by simultaneously adjusting the connecting rods 23 and 24 facing each other. Next, as shown in FIG. 2, the cut portion of the rubber caterpillar K to be cut is placed on the support portion 30 on the jig S. Alternatively, first, the portion of the rubber caterpillar K to be cut is placed on the jig S, and then the operating portion 41 of the adjusting rod 40 of the jig S is rotated to adjust the height to a desired height.

By doing so, the rubber caterpillar K
Means that the portion of the jig S on the support portion 30 is arranged so as to be higher than other portions. When the raised portion is cut, as shown in FIG. 3, as the cutting progresses, the cut surface of the rubber caterpillar K is pulled apart by another caterpillar portion located below the support portion 30 to separate the cut rubber. This prevents contact with the substrate 51 of the diamond wheel 50. At the same time, the corrugated portions 54 are formed on both sides of the substrate of the diamond wheel 50 so as to draw a curve from a predetermined position toward the outer peripheral side, so that the cutting makes less contact with the rubber portions located on both sides of the diamond wheel 50. And cut rubber substrate 5
Since the contact with 1 is prevented, the heat generated by cutting is significantly reduced, and the dissolution of rubber is prevented.

As described above, the rubber portion can be cut by the diamond wheel 50 while preventing the rubber from being melted. Since the diamond wheel 50 can be used, the wire portion embedded in the rubber can be cut at the same time. .

[0032]

As described above, the rubber and the wire can be cut at the same time by cutting with a special diamond wheel having a diamond layer (cutting edge) on the outer peripheral portion of the metal circular substrate.

Therefore, the rubber and the wire of the rubber caterpillar can be cut at the same time, so that the cutting time and the cutting work can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a jig according to the present invention.

FIG. 2 is an explanatory view showing a state where a rubber caterpillar is placed on a jig.

FIG. 3 is an explanatory view showing a state in which a rubber caterpillar is cut by a diamond wheel.

FIG. 4 is a front view of a diamond wheel.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Base (base) 11 Plate 12 Connection support part 13 Surface 14 Connection hole 20 Connection part 21 First connection rod 21a First rod 21b Second rod 21c Connection hole 21d Screw hole 22 Second connection rod 22a Projection 22b Connection projection 23, 24 A pair of connecting rods 26 Connecting protrusions 30 Supporting part 31 Connecting part 32 Supporting surface 33 Connecting hole 40 Adjusting rod 41 Operating part 42 Screw rod 50 Diamond wheel 51 Metal circular substrate 52 Diamond abrasive grain layer 53 Mounting hole 54 Corrugated part 55 Cooling hole K Rubber caterpillar S Jig

Claims (2)

(57) [Claims] 1. A method for cutting a rubber caterpillar formed by burying a wire in rubber, wherein a rubber is provided on a jig having a support portion formed at a position higher than the base portion via a connecting portion at the base portion. By placing a caterpillar made of rubber, the rubber caterpillar portion on the support portion of the jig is arranged so as to be higher than other portions, and the raised rubber caterpillar portion is cut using a diamond wheel. Rubber caterpillar cutting method. 2. A cutting diamond wheel used for cutting a caterpillar rubber formed by burying a wire in rubber, the cutting diamond wheel comprising:
A metal circular substrate having a mounting hole formed at the center and a curved portion formed on both sides of the substrate by drawing a curve from a predetermined position toward the outer peripheral side, and electrodeposited on the outer peripheral portion of the metallic circular substrate. A diamond wheel for cutting comprising a diamond layer serving as a cutting blade and a cooling hole formed in a substrate.