JPH0957604A - Rubber caterpiller cutting method and cutting diamond wheel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the cutting time and to decrease cutting work by simultaneously cutting rubber of a rubber crawler and a wire. SOLUTION: A cutting method for a rubber caterpiller K formed by burying a wire in rubber is performed by using a jig S and a diamond wheel 50. The jig S is provided with a supporting part formed on the base part through a connecting part and above the base part. The rubber caterpiller K part on the supporting part is arranged by being raised higher than the other part by loading the caterpiller K on the jig S, and the raised caterpiller K part is cut by using the diamond wheel 50.

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 steel materials such as wires are integrated, and a diamond for cutting rubber caterpillar. Regarding the wheel.

[0002]

2. Description of the Related Art Generally, a rubber caterpillar is a long object, and a wire is buried inside in a long direction. When the rubber caterpillar is scrapped, the rubber caterpillar is cut into a size such that it can be carried.

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

[0004]

Since the technique of cutting the rubber portion with a cutter (cutting tool) and the wire portion with a grindstone as described above is performed by hand when cutting the rubber, fatigue There is a disadvantage in that it is not efficient because it is highly efficient, and it takes time to cut the rubber and the wire separately.

Therefore, it is conceivable to use a diamond wheel to simultaneously cut the rubber portion and the wire portion. However, since the diamond wheel rotates at a high speed, the rubber comes into contact with the side surface of the diamond wheel, and frictional heat is generated, which causes the rubber to melt. However, there is an inconvenience that the rubber cannot be cut because it obstructs the cutting of 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 and can shorten the cutting time and the cutting work. To provide.

[0007]

A method of cutting a rubber caterpillar according to the invention of claim 1 is a method of cutting a rubber caterpillar in which a wire is embedded in rubber, and a connecting portion is provided at a base portion. By placing the rubber caterpillar on a jig having a support portion formed above the base via the rubber caterpillar portion on the support portion of the jig, the rubber caterpillar portion is arranged so as to be higher than other portions. It is characterized in that the raised rubber caterpillar portion is cut using a diamond wheel.

The cutting diamond wheel according to the invention of claim 2 is a cutting diamond wheel used for cutting a caterpillar rubber formed by burying a wire in rubber. A metal circular substrate having a mounting hole formed in the substrate and a curved portion drawn from the predetermined position toward the outer peripheral side on both sides of the substrate, and a cut electrodeposited on the outer peripheral portion of the metal circular substrate. It is characterized by comprising a diamond layer to be a blade and a cooling hole formed in the substrate.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is to provide a method and a diamond wheel which are effective for cutting a rubber-made caterpillar, which is a long length in which rubber and a steel material such as a wire are integrated. By placing the rubber caterpillar on the jig having the support formed above the base via the connecting part, the rubber caterpillar part on the support of the jig is The raised rubber caterpillar portion is cut and cut with a diamond wheel.

Therefore, the portion of the rubber caterpillar placed on the jig is always pulled by the other portion of the rubber caterpillar, and when the diamond wheel is used for cutting, the cut rubber portion is They are separated as they are cut at the cut portion as a boundary (that is, the portion on the jig as a boundary). Therefore, the contact of the diamond wheel with the substrate surface is extremely reduced.

Further, as described in claim 2, on both sides of the substrate,
When a diamond wheel with a corrugated part is used, not only the rubber part cut by the cutting edge of the diamond wheel does not touch both sides of the substrate, but also the cooling effect by rotating the diamond wheel is synergized to maintain sharpness. To 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.

1 to 5 show 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 in which a rubber caterpillar is placed on the jig, FIG.
Is an explanatory view showing a state in which the rubber caterpillar is being cut by the 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 this example has a base 10 as a base.
And a connecting portion 20 and a supporting portion 30. As shown in FIGS. 1 and 2, the base 10 as the base of the present example has a plate 11 having a connection support 12 formed substantially at the center thereof. The connection support portion 12 of this example is formed in a U-shaped cross section with its opening facing upward. In addition, the connection support portion 12
Two connecting holes 14 are formed in each of the facing surfaces 13 (only one surface is shown in FIG. 1).

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

The second connecting rod 22 is formed with protrusions 22a, one end of which is connected to the support portion 30, overhanging on both sides, and the other end of which is engaged with a connecting hole 21c of the first connecting rod 21 described below. 22b are formed so as to project on both sides.

The first connecting rod 21 of the present example is U-shaped, and two first rods 21a connected to the base 20 side are formed to face each other. The two first rods 21a are formed. It is configured by being connected by the second rod 21b. A connecting protrusion 26 is formed so as to project from the free end side of the first rod 21a, and the connecting protrusion 26 is axially supported by the connecting hole 14 of the base 10.

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

As described above, the respective connecting rods 23, 2
Connecting protrusion 2 on the base 10 side of the first connecting rod 21 that constitutes the
6 is pivotally supported by the connecting hole 21c, and the second connecting rod 2
The second connecting protrusion 22 a is pivotally supported by the connecting hole 33 of the supporting portion 30.

In this embodiment, the height of the connecting rods 23 and 24 is adjusted and fixed by the adjusting rod 40. The operating rod 41 is provided at one end of the adjusting rod 40 of this example, and the other end is a screw rod 42. 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 this embodiment has a connecting portion 31 having a U-shaped cross section, which is open 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 smaller than the width of the base 10, the width can be increased within a range that does not impair the stability, and the support surface 32 can be attached or detached depending on the type of the rubber caterpillar. It can be configured and replaced.

With the above construction, the first connecting rod 21 and the second connecting rod 22 are the base 10, the supporting portion 30, the first connecting rod 21 and the second connecting rod. The connecting portion of 22 is movable, and the adjusting rod 4
By 0, the height is adjusted and fixed.

In the above construction, an example in which the first connecting rod 21 is formed in a U-shape is shown, but the first connecting rod 21 and the second connecting rod 2 are shown.
It is also possible to connect 2 and 2 with another connecting shaft or the like. Further, the pivotal support between the first connecting rod 21 and the base 10 and the pivotal support 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 mechanical modes can be used, but the point is that the height of the connecting portion 20 can be adjusted and fixed at a predetermined height position.
The support portion 30 is formed on the upper portion, and when the object to be cut is placed on the support portion 30, the portion placed on the support portion 30 is arranged at a position higher than other portions, and the other portion Therefore, any jig can be used so that it can be pulled to one side or both sides. Therefore, a fixing device (for example, a locking device for clips, needles, etc.) or the like can be arranged on the base 10 side.

Diamond wheel for cutting 50 of this example
As shown in FIGS. 4 and 5, the metal circular substrate 51
And the diamond abrasive grain layer 52 are constituent elements.

The board 51 of this example has a mounting hole 53 formed in the center thereof, and a curve is drawn from the predetermined position of the board (half the distance from the end of the mounting hole 53 to the outer circumference of the board in this example) toward the outer peripheral side. The corrugated portion 54 is formed on both surfaces of the substrate by drawing. Further, in the vicinity of the diamond abrasive grain layer 52 formed on the substrate 51, there are two cooling holes 55 formed of round holes for the purpose of cooling effect.
Four pieces (every 15 degrees) are formed.

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

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

First, the jig S is adjusted to a predetermined height. This adjustment is performed by rotating the operating portion 41 of the adjusting rod 40.
The connecting rods 23 and 24 facing each other are adjusted at the same time. 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 it to a desired height.

In this way, the rubber caterpillar K
Means that the portion of the jig S on the support portion 30 is arranged higher than the other portions. When this raised portion is cut, as the cutting progresses as shown in FIG. 3, the cut surface of the rubber caterpillar K is pulled away by the other caterpillar portion located below the support portion 30, and the cut rubber is removed. This prevents the diamond wheel 50 from coming into contact with the substrate 51. At the same time, since the corrugated portions 54 are formed on both sides of the substrate of the diamond wheel 50 so as to draw a curved line from the substrate predetermined position toward the outer peripheral side, contact with rubber portions located on both sides of the diamond wheel 50 is reduced by cutting. The cut and cut rubber substrate 5
Since the contact with 1 is prevented, the heat generated by cutting is greatly reduced and the melting of rubber is prevented.

As described above, it is possible to cut the rubber portion with the diamond wheel 50 while preventing the rubber from being melted. Since the diamond wheel 50 can be used, the wire portion buried in the rubber can be cut at the same time. .

[0032]

As described above, it is possible to simultaneously cut rubber and wire by cutting with a special diamond wheel having a diamond layer (cutting blade) on the outer peripheral portion of a metal circular substrate.

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

[Brief description of 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 in which a rubber caterpillar is placed on a jig.

FIG. 3 is an explanatory view showing a state in which a rubber caterpillar is being 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 body 12 connection support part 13 surface 14 connection hole 20 connection part 21 1st connection rod 21a 1st rod 21b 2nd rod 21c connection hole 21d screw hole 22 2nd connection rod 22a protrusion 22b connection protrusion 23, 24 a pair of connecting rods 26 connecting protrusions 30 supporting portions 31 connecting portions 32 supporting surfaces 33 connecting holes 40 adjusting rods 41 operating portions 42 screw rods 50 diamond wheels 51 metal circular substrates 52 diamond abrasive layer 53 mounting holes 54 corrugated portions 55 Cooling hole K Rubber caterpillar S Jig

Claims (2)

[Claims] 1. A method of cutting a rubber caterpillar in which a wire is embedded in rubber, the method comprising cutting a rubber on a jig having a support portion formed at a position above the base via a connecting portion. By placing the caterpillar made of rubber, the rubber caterpillar portion on the support portion of the jig is arranged so as to be higher than the other portions, and the raised rubber caterpillar portion is cut using a diamond wheel. How to cut rubber caterpillar. 2. A cutting diamond wheel used for cutting caterpillar rubber in which a wire is embedded in rubber, the cutting diamond wheel comprising:
A metal circular substrate having a mounting hole formed at the center and a curved portion drawn from the predetermined position toward the outer peripheral side of the substrate on both sides of the substrate, and electrodeposited on the outer peripheral portion of the metal circular substrate A diamond wheel for cutting, comprising: a diamond layer serving as a cutting edge; and a cooling hole formed in a substrate.