KR20190001186U - Cutting wheel - Google Patents

Abstract

Since the present invention forms several discharge grooves on the cutting wheel body surface from the edge to the center, it is possible to discharge dust and heat generated when cutting the object to be cut with the cutting wheel to the outside of the object to be cut, It is possible to cut the object to be cut safely and accurately according to the dimensions. Particularly, in the present invention, the discharge grooves are formed on both sides of the cutting wheel body, and the discharge grooves formed on both sides of the cutting wheel body are formed at positions displaced from each other, so that even when any part of the cutting wheel contacts the object, Dust and heat can be discharged through the grooves. In addition, since the present invention forms the discharge groove integrally with the cutting wheel body when the cutting wheel body is molded, it can be easily manufactured without using a process of molding the discharge groove separately and can be used conveniently and safely.

Description

Cutting wheel {CUTTING WHEEL}

The present invention relates to a cutting wheel, and more particularly, to a cutting wheel having at least one of both sides of a cutting wheel body formed with a discharge groove so as to face the center thereof at an edge thereof to discharge dust or heat, In particular, when the cutting wheel body is molded, the discharge groove is also formed, so that it can be easily and conveniently manufactured and used safely.

The cutting apparatus C is configured to cause the cutting wheel W to rotate at a high speed as shown in Figs. 1 and 2, and to cut the pipe, the wood, and the plate with the cutting wheel W Refers to a device used to cut the object P (P). At this time, the cutting wheel W is made of various materials according to the object P to be cut, and is called various names such as a cutting stone or a cutting blade. In the following Patent Documents 1 and 2, a technique relating to such a cutting wheel (cutting stone) is disclosed.

(Patent Document 1) Korean Patent No. 1353315

And a cutting wheel comprising the same, wherein the composition for a cutting wheel comprises 100 parts by weight of a cutting particle mixture, 15 to 40 parts by weight of a cutting aid, and 15 to 30 parts by weight of a binder, Wherein the binder contains at least one of a melamine resin, a phenol resin, an acrylic resin, an epoxy resin and a urea-formaldehyde resin, wherein the binder contains at least one of barium, cobalt, sulfur, iron oxide, dimethylglyoxime and kerosene , The dimethylglyoxime and the binder are contained in a weight ratio of 1: 3 to 1: 8.

(Patent Document 2) Korean Patent Publication No. 10-2016-0136974

The present invention relates to a cutting stone for a hand grinder, and more particularly, to a cutting stone for a hand grinder, which comprises a disk-shaped disk body in which a cutting member and a binder are mixed by rotating at a high speed to cut the workpiece, And is formed to have a thickness of 0.5 to 2.0 mm and has a through hole corresponding to the fastening hole formed at the center thereof so as to have an annular shape And a reinforcement pad formed on one surface thereof with an adhesive surface coated with an adhesive so as to be adhered to the cutting stone by an adhesive force and having an exposed surface printed with letters or images on the other surface thereof. The cutting stone for a hand grinder thus constructed can reinforce the edge of the fastening hole in which the clamp comes into contact while maintaining the weight reduction through the simple structure of attaching reinforcement pads made of paper or synthetic resin to both sides of the fastening hole As a result, it is possible to suppress local deformation or damage of the contact portion due to the clamping force of the clamp, thereby preventing the occurrence of eccentricity during high-speed rotation. In addition, since it is adhered in the form of a sticker, it is easy to manufacture and economical manufacturing is possible, and it is expected to have a useful effect of enhancing the competitiveness and reliability of the product for the cutting stone applied thereto.

However, existing cutting wheels (cutting stones) have the following problems as described with reference to Fig. 2.

(1) When the object P to be cut is cut, the gap G 'between the cutting wheel W and the object P to be cut is not sufficiently secured, so that dust, The working efficiency is lowered because it can not be discharged easily, and the cutting wheel W is easily heated and there is a fear of breakage.

(2) That is, the cutter wheel W contacts the cut object P with the thickness portion thereof being rotated, so that the cutting action takes place on both sides of the actual cutter wheel W. [ The gap G 'between the side surface of the cutting wheel W and the object P is narrow and the dust and the heat cut into the thickness portion of the cutting wheel W are separated through the gap G' There is a difficulty in discharging it.

(3) If the dust generated by the cutting of the cutting wheel W is not sufficiently discharged out of the object to be cut P, the foreign object may deteriorate the health of the operator. Particularly, when the dust thus formed is sandwiched between the cutting wheel W and the object P to be cut or the rotating part of the cutting wheel W, it interferes with the cutting action.

(4) In addition, the heat generated at the cutting portion causes deformation of the object P to be cut and the cutting wheel W so that the cutting wheel W is easily broken, It can not be cut.

Korean Registered Patent No. 1353315 (Registered on April 1, 2014) Korean Patent Laid-Open No. 10-2016-0136974 (Published on 2016.11.30)

The present invention has been made in consideration of this point, and it is an object of the present invention to provide a cutting wheel body in which a plurality of discharge grooves are formed on at least one side of both sides of a cutting wheel body so as to be directed from the edge to the center, It is an object of the present invention to provide a cutting wheel that can cut out an object to be cut safely and accurately to a desired dimension while enhancing a heat radiating effect.

Particularly, in the present invention, the discharge grooves are formed on both sides of the cutting wheel body, and the discharge grooves formed on both sides of the cutting wheel body are formed at positions shifted from each other, so that any portion of the cutting wheel, Another object is to provide a cutting wheel that allows the discharge of dust and heat through the discharge groove.

In addition, the present invention provides such a cutting wheel that can easily and safely use such a discharge groove without forming the discharge groove separately since the discharge groove is integrally formed when the cutting wheel body is molded together, There is a purpose.

In order to achieve the above object, a cutting wheel according to the present invention is a cutting wheel including a main body 10 formed by mixing an abrasive material and a binder into a disk-like shape, and the main body 10 is provided with at least one And a plurality of discharge grooves (11) are formed so as to face the center of the main body (10) at the edges.

Particularly, the discharge groove 11 is formed in a straight line from the edge of the main body 10 toward the center of the main body 10, and is arranged radially.

The discharge groove 11 is formed to be inclined away from the center of the main body 10 at the edge of the main body 10.

In addition, the discharge groove 11 is formed in an arc shape.

On the other hand, the discharge grooves 11 are formed on both sides of the main body 10, and the discharge grooves 11 formed on both sides are formed so as to be displaced from each other.

Finally, the discharge groove 11 is formed at a time when the main body 10 is molded.

The cutting wheel according to the present invention has the following effects.

(1) Sufficient space can be ensured between the cutting surface of the object to be cut and the discharge groove formed in the cutting wheel between the cutting wheel. Thus, dust or heat generated when cutting through this space can be discharged outside the object to be cut.

(2) Thus, it is possible to solve a problem that may be caused by dust, for example, a problem that the cutting wheel is caught by the cut surface of the object to be cut and is interrupted by the high-speed rotation or the object to be cut is not properly cut.

(3) It is also possible to prevent the cutting wheel from being heated by heat generated by cutting the object to be cut. Accordingly, it is possible to minimize the deformation or breakage of the cutting wheel into such heat, thereby extending the durability and lifetime of the cutting wheel.

(4) On the other hand, the discharge grooves are formed on both sides of the cutting wheel body so that the discharge grooves formed on both sides are formed at positions displaced from each other, so that even if the cutting wheel cuts the object at a certain position, And heat can be discharged to the outside.

(5) Since the discharge groove is formed integrally with the cutting wheel body, the discharge groove is not required to be formed separately. Therefore, the discharge groove can be easily and quickly formed and used safely and conveniently.

1 is a perspective view showing an example of a cutter for cutting a pipe with a conventional cutting wheel mounted thereon.
[Fig. 2] is an operational state view showing a part of cutting a pipe by a conventional cutting wheel.
[Fig. 3] is a perspective view showing a configuration of a cutting wheel according to the present invention. [Fig.
[Fig. 4] is an operational state diagram showing a state in which a cutting object such as a pipe is cut by a cutting wheel according to the present invention.
Fig. 5 is a plan view showing an example in which the shape of the discharge groove formed on the surface of the cutting wheel is differently formed according to the present invention. Fig. 5 (a) is an example in which the discharge groove is formed obliquely, Each shows an example.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings, and the inventor shall appropriately define the concept of the term in order to best describe its own design It should be construed as meaning and concept consistent with the technical idea of this invention.

Therefore, the embodiments shown in the drawings and the drawings are only exemplary embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents And variations may be present.

(Configuration)

The cutting wheel according to the present invention has a plurality of discharge grooves 11 so as to face the center of the main body 10 at an edge on at least one side of both sides of the main body 10 as shown in Figs. Dust and heat generated when the cutting object P is cut by the cutting wheel can be discharged through the discharge groove 11, so that it is safe and can be cut according to a predetermined standard. In addition, the cutting wheel is heated and damaged or deformed And the like.

Particularly, the discharge groove 11 is formed in a straight line shape toward the center of the main body 10 from the edge of the main body 10, or formed in a slant line or arc shape, thereby cutting dust and heat generated by cutting the object P So that the object P can be effectively discharged.

The discharge grooves 11 are formed on both sides of the main body 10 so that the discharge grooves 11 formed on both sides of the main body 10 are aligned with each other so that when cutting the object P with the cutting wheel Dust and heat can be discharged from the object P to the outside through the discharge groove 11 irrespective of which part of the body 10 touches the object P so that the cutting operation can be performed safely will be.

Finally, since the discharge groove 11 is formed at a time when the main body 10 is molded, a separate manufacturing process can be omitted, and even if the discharge groove 11 is complicated or fine, It is possible.

Hereinafter, this configuration will be described in more detail with reference to the accompanying drawings. Here, the reference numeral " P " represents an object to be cut by using a cutting wheel such as a pipe, a wood, and a steel plate or a plate, and an example of the pipe is shown as an example in the drawing.

The main body 10 has a disc shape as shown in [Fig. 3] and [Fig. 4], and is manufactured by mixing an abrasive and a binder. Here, the abrasive refers to a material capable of producing a cutting effect through a polishing method such as a diameter, a natural or artificial diamond, a synthetic abrasive, a silicon carbide abrasive, and an alumina abrasive. Further, the binder refers to a material produced by a conventional technique used for fixedly bonding the above abrasive particles, such as an adhesive, clay, and an inorganic material.

On the other hand, in the main body 10, as shown in Fig. 3 and Fig. 4, discharge grooves 11 are formed on at least one of both surfaces of the disk. The discharge groove 11 is used as a path through which dust or heat generated when the cutting target P is cut by the main body 10 can be discharged outside the cut target P between the cut target P and the main body 10 .

That is, as shown in Fig. 4, the discharge groove 11 is formed in such a manner that the surface of the discharge groove 11, which is formed by the main body 10 and the surface of the object P cut by the main body 10, The distance between the main body 10 and the cut object P can be made larger than the gap G 'between the cutting wheel W and the cut object P as shown in FIG. 2, So that it is possible to discharge the dust and the heat generated between the object P to be cut out.

This makes it possible to eliminate the cause of obstruction which prevents the dust from interfering with the rotation between the main body 10 and the object P or cutting the body 10 according to the predetermined standard due to deformation or breakage of the main body 10 by the heat.

In the preferred embodiment of the present invention, the discharge groove 11 is formed in a straight line from the edge of the main body 10 toward the center of the main body 10 as shown in Figs. 3 and 4, It is preferable to perform molding. This is because when the discharge grooves 11 are formed on both sides of the main body 10 and the discharge grooves 11 formed on both sides are formed to be shifted from each other, So that the dust and the heat can be discharged to the outside through the discharge groove 11 at all times.

5A, the discharge groove 11 may be formed so as to deviate from the center of the body 10 by being inclined at a predetermined angle with a virtual line starting from the edge of the body 10 toward the center of the body 10, As shown in Fig. 5 (b).

In addition, the discharge groove 11 may be inclined in various arc shapes or inclined shapes while being directed toward the center of the main body 10 by a predetermined length starting from the edge of the main body 10, It will be understood by those skilled in the art that the present invention can be embodied in other forms without departing from the scope of the present invention.

It is preferable that the discharge groove 11 is formed on both sides of the main body 10 as shown in Fig. 4 as described in the case of forming the discharge groove 11 from the edge of the main body 10 toward the center of the main body 10 Do. At this time, the discharge grooves 11 formed on both sides of the discharge grooves 11 are formed so that the forming positions are shifted from each other, regardless of the position where the edge portions of the main body 10 abut against the object P to be cut It is preferable that a space for discharging dust or heat through the discharge groove 11 is always ensured.

Finally, the discharge groove 11 may be formed after the main body 10 is molded, but it is preferable to form the main body 10 when the main body 10 is molded. This is because the main body 10 is manufactured by mixing the abrasive and the binder into a predetermined mold so that the discharge groove 11 can be formed in advance in the mold so that the process of molding the discharge groove 11 separately And it is also possible to form the discharge groove 11 integrally at a time when the main body 10 is molded, so that the working efficiency can be improved.

As described above, according to the present invention, since the discharge groove is formed on at least one of the both surfaces of the main body used for cutting the object to be cut, dust or heat generated when the object is cut by the main body is discharged through the discharge groove to the outside of the object to be cut . Accordingly, it is possible not only to increase the cooling efficiency, but also to prevent the main body from being damaged or broken as well as to prevent the main body from being cut to a desired length by heat deformation or the like, So that it can be conveniently used.

10: Body
11: Discharge groove
P: object to be cut

Claims (6)

In a cutting wheel including a main body (10) formed by mixing an abrasive and a binder into a disk shape,
In the main body 10,
And a plurality of discharge grooves (11) are formed on at least one side of both sides so as to face the center of the main body (10) from the edge.
The method of claim 1,
The discharge groove (11)
And a radial shape is formed in a straight line from the edge of the main body (10) toward the center of the main body (10).
The method of claim 1,
The discharge groove (11)
Is formed to be inclined away from the center of the main body (10) at an edge of the main body (10).
The method of claim 1,
The discharge groove (11)
Wherein the cutting wheel is formed in an arc shape.
The method of claim 1,
The discharge groove (11)
Are formed on both sides of the main body (10), and the molding positions of the discharge grooves (11) formed on both sides are formed to be shifted from each other.
6. The method according to any one of claims 1 to 5,
The discharge groove (11)
Wherein the main body (10) is formed at one time when the main body (10) is molded.

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