KR101786191B1

KR101786191B1 - Control device of grinding angle for blade

Info

Publication number: KR101786191B1
Application number: KR1020150117128A
Authority: KR
Inventors: 장성진; 조혁상
Original assignee: 조혁상; 장성진
Priority date: 2015-08-20
Filing date: 2015-08-20
Publication date: 2017-10-17
Also published as: KR20170022320A

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a blade sharpening angle adjusting device capable of supporting a cutter on a surface of a sharpener such as a grinding wheel at an accurate sharpening angle when polishing a blade of a cutlery, And a pair of first rollers rotatably coupled to both ends of the rotary shaft, respectively.

Description

Technical Field [0001] The present invention relates to a grinding angle adjusting device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blade sharpening angle adjusting device, and more particularly, to a blade sharpening angle adjusting device that enables a blade to be supported on a surface of a sharpener such as a grinding wheel at an accurate sharpening angle.

Knives, such as knives, scissors, sickles, axes, etc., are worn when used for a long time and need to be sharpened again for reuse.

However, cutlery such as knives and scissors has various uses ranging from general items used at home to specialized fields such as peacocks or beauty and beauty. In addition, knives and scissors used in professional fields such as peacock, beauty, and beauty are expensive and require high precision of the product.

In particular, ordinary knives and scissors used at home are rarely used for grinding and reusing abrasive blades. However, expensive knives and scissors used in the field of specialty are frequently used when the blades become dull.

The angle of the blade and the smoothness of the surface are important for reproducing the blade of the blade used by the expert.

In general, however, such a polishing operation requires a considerable amount of time and a high degree of skill because the grinding operation is a method of reciprocating the grinding wheel while spraying water with the grinding blade. If you do not get skilled workers or if you are chased by time, you have to do your own polishing, but there is a high risk of safety accidents and poor precision of grinding, which makes you an uneconomical choice to buy new cutlery.

On the other hand, in the case of polishing the surface of the abrasive wheel rotating at high speed by abutting the abrasive wheel, there is a problem that the abrasive wheel is expensive and a considerable cost is incurred when the equipment is initially purchased and the abrasive wheel is worn out .

In addition, the accuracy of polishing depends largely on the skill level of the operator. In recent years, it is difficult to secure a skilled worker, and there is a problem that the cost and time are considerably long, and the blade of the blade is greatly damaged There are many cases.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a blade sharpening angle adjusting device which is simple in structure and simple in operation so that even a novice user can easily polish a cutting blade with a desired angle .

The above-described object of the present invention can be achieved by a rotary shaft, A guide plate having an engaging portion bent at one end so as to surround one circumferential surface of the rotary shaft and a guide portion extending from the engaging portion to the outside of the rotary shaft; And a pair of first rollers rotatably coupled to both ends of the rotary shaft, respectively.

According to a preferred aspect of the present invention, the guide plate may be rotatably coupled to the rotation shaft about the coupling portion.

According to another preferred aspect of the present invention, a magnetic body may be further provided on one surface of the guide plate.

According to another preferred aspect of the present invention, the guide plate may further include a washer interposed between the guide plate and the first roller.

According to another preferred aspect of the present invention, the apparatus may further include a second roller spaced apart from the first roller along the longitudinal direction of the rotation shaft and rotatably coupled to the rotation shaft.

According to another preferred aspect of the present invention, the apparatus may further include an elastic O-ring interposed between the first roller and the second roller.

According to the blade sharpening angle adjusting device of the present invention, the blade attached to the guide plate is tilted at a predetermined angle to the grindstone of the grindstone or the polishing pad, so that it can be precisely polished at a desired blade angle.

Further, according to the blade sharpening angle adjusting device of the present invention, it is possible to easily grind the blade of the blade by a non-expert, so that it is possible to reduce the time and cost required for reproducing the worn blade.

1 is a perspective view of a blade polishing angle adjusting device according to an embodiment of the present invention;
2 is an exploded perspective view of a blade polishing angle adjusting device according to an embodiment of the present invention.
3 is a use state view of a blade sharpening angle adjusting device according to an embodiment of the present invention.
4 is a sectional view taken along the line AA of Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the embodiments described below are only for explanation of the embodiments of the present invention so that those skilled in the art can easily carry out the invention, It does not mean anything. In describing various embodiments of the present invention, the same reference numerals are used for components having the same technical characteristics.

Example

FIG. 1 is a perspective view of a blade sharpening angle adjusting device according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of a blade sharpening angle adjusting device according to an embodiment of the present invention.

1 and 2, a blade sharpening angle adjusting device 100 according to an embodiment of the present invention includes a rotary shaft 200, one end coupled to the rotary shaft 200 and the other end coupled to the rotary shaft 200, And a pair of first rollers 400 rotatably coupled to both ends of the rotating shaft 200. The first roller 400 rotatably couples the first roller 400 and the second roller 400 to each other.

Here, the rotation shaft 200 serves as a body to which the guide plate 300 and the first roller 400 are coupled. The rotation shaft 200 may be formed in the shape of a hollow shaft. The dimensions such as the diameter and the length may be appropriately selected .

One end of the guide plate 300 is rotatably coupled to the outer circumferential surface of the rotary shaft 200 and the other end is extended to the outside of the rotary shaft 200. More specifically, a coupling portion 310 having a circular cross-sectional shape is formed at one end of the guide plate 300 so as to surround the outer circumferential surface of the rotary shaft 200, (320) is extended.

The engaging portion 310 of the guide plate 300 is bent in a circular cross section so as to surround the outer circumferential surface of the rotating shaft 200. The engaging portion 310 of the guide plate 300 and the outer circumferential surface of the rotating shaft 200 have a predetermined A gap is formed, and the guide plate 300 can rotate about the rotation axis 200. [

A magnetic body 330 is provided on one surface of the guide plate 300 and the cutter 10 to be polished is detachably attached to the guide plate 300 by the magnetic force of the magnetic body 330. The blade 10 attached to the guide plate 300 by the magnetic body 330 is inclined at an angle equal to the angle of inclination of the guide plate 300 and the surface of the polishing pad 20 At a blade polishing angle.

As an example, the magnetic body 330 may be coupled to the upper surface of the guide plate 300 by welding, adhesion, or the like. As another example, the receiving groove may be formed in the upper surface of the guide plate 300, and the magnetic body 330 may be received in the receiving groove. In this case, the thickness of the magnetic body 330 may be determined corresponding to the depth of the receiving groove so that the upper surface of the guide plate 300 and the upper surface of the magnetic body 330 are flush with each other.

A pair of first rollers 400 are rotatably coupled to both ends of the rotating shaft 200. That is, the guide plate 300 is coupled between a pair of first rollers 400 provided at both ends of the rotary shaft 200. The rotating shaft 200 passes through the center of the pair of first rollers 400, and thus the first roller 400 can rotate around the rotating shaft 200.

A pair of first rollers 400 are supported on the surface of the polishing mouth 20 and a pair of second rollers 400 are mounted on the surface of the guide plate 300. When the blade polishing angle adjusting device 100 is seated on the polishing pad 20 such as a grindstone, And the other end extends obliquely toward the front of the rotary shaft 200.

That is, since the guide portion 320 of the guide plate 300 extends forward from the upper end of the engaging portion 310, the end portion of the guide portion 320 is downwardly moved toward the surface of the engaging portion 20 by its own weight It will rotate. The blade of the blade 10 attached to the guide part 320 is brought into contact with the surface of the polishing tool 20 at the time of polishing the actual blade 10, This will be described later with reference to FIG. 3 and FIG.

A fastener 210 such as a bolt or nut is coupled to the outside of each first roller 400 to prevent the first roller 400 from moving along the axial direction of the rotary shaft 200. For example, in the case of bolts, they may be respectively coupled to both ends of the rotating shaft 200 through the first roller 400. Further, in the case of a nut, the first roller 400 can be screwed to a thread of a rotating shaft 200 formed on the outer side of the first roller 400 to prevent the rotation of the rotating shaft 200 of the first roller 400.

A pair of second rollers 500 may be provided between the pair of first rollers 400 according to a standard such as the length of the rotating shaft 200 and the thickness of the first roller 400. [

The pair of second rollers 500 are spaced apart from the first roller 400 by a predetermined distance so as to be in close contact with both sides of the guide plate 300, And is also supported on the surface of the polishing tool 20 so as to smoothly move the blade 10 attached to the guide plate 300 in the forward and backward directions. As an example, the first roller 400 and the second roller 500 may be made of bearings.

At this time, between the second roller 500 and the guide plate 300, abrasion due to the relative rotation of the second roller 500 and the guide plate 300 is prevented, and when the second roller 500 rotates, A washer 600 may be interposed between the upper and lower plates 300 and 300 to prevent the upper plate 300 from being lifted up.

The first roller 400 and the second roller 500 are prevented from flowing along the axial direction of the rotary shaft 200 between the first roller 400 and the second roller 500, At least one or more O-rings 700 may be interposed to prevent the generation of fricatives.

The number of the O-rings 700 interposed between the first roller 400 and the second roller 500 is greater than the number of O-rings 700 disposed between the first roller 400 ) And the second roller 500, the thickness of the O-ring 700, and the like.

FIG. 3 is a use state diagram of a blade sharpening angle adjusting apparatus according to an embodiment of the present invention, and FIG. 4 is a sectional view taken along the line A-A in FIG.

3, one side of the cutter 10 is detachably attached to the magnetic body 330 provided on the guide plate 300. At this time, the blade of the cutter 10 is inserted into the opening of the grinding wheel, (20).

The rotation shaft 200 passes through the center of the first roller 400 and the second roller 500 and is guided from the upper end of the engaging part 310 of the guide plate 300 coupled to surround the outer circumferential surface of the rotation shaft 200, The blade of the blade 10 attached to the guide plate 300 also comes into contact with the surface of the polishing tool 20 in an oblique manner as the blade 320 is inclined downward.

At this time, the angle? Formed by the surface of the polishing tool 20 and the one side of the cutter 10 is the blade polishing angle. The blade polishing angle depends on the diameter of the first and second rollers 400 and 500, Can be appropriately adjusted by changing the length of the light source.

For example, increasing the diameter of the first and second rollers 400, 500 or decreasing the length of the guide portion 320 increases the blade sharpening angle and, conversely, reduces the diameters of the first and second rollers 400, Or the length of the guide portion 320 is increased, the blade polishing angle is reduced.

The user can appropriately select the diameter of the first and second rollers 400 and 500 and the length of the guide part 320 to contact the blade of the blade 10 with the desired blade polishing angle on the surface of the polishing tool 20, The polishing operation is performed by reciprocating the cutter 10 in the forward and backward directions.

At this time, the blade polishing angle adjusting device 100 integrally moves along the surface of the polishing tool 20 in the front-rear direction together with the blade 10, and while the blade 10 is being polished, The angle is maintained by the guide plate 300 at the desired blade polishing angle. Therefore, it is possible to prevent the blades from being changed or the blades from being damaged during the grinding process, thereby ensuring the precision of grinding. Even if the grinder is a beginner, the grinding operation can be carried out easily and accurately at a desired blade angle.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

10: Cutlery
20:
100: blade polishing angle adjusting device
200:
210: fastener
300: guide plate
310:
320: guide portion
330: magnetic body
400: first roller
500: second roller
600: Washer
700: O ring

Claims

A rotating shaft;
And a guide portion extending from the coupling portion to an outer side of the rotation shaft, the guide portion being rotatably coupled to the rotation shaft about the coupling portion, ;
A magnetic body provided on one surface of the guide plate;
A pair of first rollers rotatably coupled to the rotating shaft;
A washer interposed between the guide plate and the first roller;
A second roller rotatably coupled to the rotation shaft at a predetermined distance from the first roller along a longitudinal direction of the rotation shaft; And
And an O-ring made of an elastic material interposed between the first roller and the second roller.

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