KR20140130595A

KR20140130595A - Exchangable type grinder assembly

Info

Publication number: KR20140130595A
Application number: KR1020130049055A
Authority: KR
Inventors: 김진수
Original assignee: 김진수
Priority date: 2013-05-01
Filing date: 2013-05-01
Publication date: 2014-11-11

Abstract

The present invention relates to an exchangeable grinder assembly. The exchangeable grinder assembly according to the embodiment of the present invention includes a first grinder (100) and a second grinder (200) for sharpening a blade line by rotating and grinding a blade. The first and second grinders (100,200) include first and second inclined surfaces (110,120) and first and second non-inclined surfaces (120,220), respectively. A first fixture (F1) and a second fixture (F2) fix the first and second grinders (100,200) to be exchanged through first and second fixation shafts (S1,S2). First and second rotation shafts (130,230) are fixed in the first and second fixtures (F1,F2).

Description

[0001] EXCHANGABLE TYPE GRINDER ASSEMBLY [0002]

More particularly, the present invention relates to an interchangeable type grindstone assembly, which is capable of polishing a surface of an abrasive to be polished so that a cutting force can be improved by having a longer cutting edge and a longer cutting edge, The present invention relates to a replaceable grinding wheel assembly,

Generally, a grinding wheel is a kind of tool used to polish a metal or the like, and means a tool used to sharpen a blade of a knife or a work tool mainly in a home or a carpenter.

Particularly, a grindstone used for grinding a blade of a knife used in the home is traditionally the same as the example of Fig.

That is, when the worker uses a sense of his / her own knife on the surface of the inclined wheel 20 normally placed on the abrasive pedestal 10 as a general person rather than an expert, the blade is not uniform, The cutting object is not cut well and the object to be crooked or cut is stuck to the blade, which is very inconvenient and troublesome to use.

In addition, there is a problem that the surface of the grindstone 20, which is a grindstone, is dented and the life of the grindstone 20 is shortened.

For example, a fixed type in which a grinding stone (abrasive) of a ceramic or stainless steel is superimposed on each other in a V shape, and then a blade such as a knife is passed through the abrasive stone to sharpen it is disclosed.

However, in this case, since the grinding stone is of a fixed type, only one of the grinding wheels is worn out, so that it is not possible to carry out subsequent polishing by the unevenly worn portion as in the example of Fig.

2, a cemented carbide tip 30 having a surface of a 'V' shape is fixed to the support base 40, and the support base 40 is attracted to the floor surface by the suction cup 50 There is something to use.

In this case, it is very convenient because you can set the edge of the knife by pulling or pushing the knife blade against the 'V' groove. However, since the cutting edge is only changed, the cutting surface is not wide and the knife blade But also has a drawback that the cutting surface becomes rough.

In addition, although a plurality of grindstones such as those disclosed in Japanese Patent Application Laid-Open Nos. 2007-0099476, 1086984, and 1242043 are disclosed as related arts, the configuration is complicated in order to provide a convenient and efficient cutting surface. , And manufacturing costs are increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems in the prior art, and it is an object of the present invention to provide a polishing apparatus and a polishing apparatus which are structurally simple and easy to use while uniformly polishing a polished surface of a polished knife, The present invention provides a replaceable grinding wheel assembly which can reduce the cost by allowing only the grinding wheel to be detached when the grinding wheel is worn.

It is another object of the present invention to provide a replaceable grindstone assembly which can uniformly polish a knife or the like, sharpen a blade line, increase cutting force, and allow the cutting material to drop well.

According to another aspect of the present invention, there is provided a replaceable grindstone assembly including first and second grindstones (100, 200) for grinding a blade to rotate a blade, The first and second grindstones 100 and 200 have first and second non-oblique surfaces 120 and 220 extending from the first and second oblique surfaces 110 and 210 and the first and second oblique surfaces 120 and 220, respectively, And the first and second non-curved surfaces 120 and 220 are disposed in contact with each other; The first and second grinding wheels 100 and 200 are replaceably fixed through first and second fixing shafts S1 and S2 passing through the first and second grinding wheels 100 and 200 in the longitudinal direction, First and second fixing members F1 and F2 having diameters corresponding to the slopes 120 and 220, respectively; The first and second rotation shafts 130 and 230 are fixed to the center of one side of the first and second fixing bases F1 and F2, respectively; The first and second rotating shafts 130 and 230 are connected and fixed to the first and second driving motors 140 and 240 so as to rotate the first and second grinding wheels 100 and 200 in opposite directions facing each other. Lt; / RTI >

At this time, a plurality of embosses E are formed on the surfaces of the first and second grindstones 100 and 200 and the first and second fixing tables F1 and F2 facing each other to increase mutual bonding force, And the like.

The first and second fixing bases F1 and F2 are formed in the shape of a plastic bobbin having an inner diameter and the first and second keyways KH1 and KH2 are formed at corresponding positions of the inner diameter and the first and second rotation shafts 130 and 230 And the first and second keys K1 and K2 are inserted into the first and second keyways KH1 and KH2 so that the first and second fixing members F1 and F2 and the first and second rotation shafts 130 and 230 It is also characterized by mutual fixation.

In addition, the present invention provides a replaceable grindstone assembly including first and second grindstones (100, 200) for grinding a blade to grind the blade line; A pair of first and second holding frames (F1, F2) which are machined into a plastic bobbin in the shape of a truncated cone and are placed in contact with each other; The first and second grinding wheels 100 and 200 are formed on the outer circumferential surfaces of the first and second fixing tables F1 and F2, respectively; The first and second rotation shafts 130 and 230 are key-engaged with the center of one side of the first and second fixing tables F1 and F2, respectively. The first and second rotating shafts 130 and 230 are connected and fixed to the first and second driving motors 140 and 240 so as to rotate the first and second grinding wheels 100 and 200 in opposite directions facing each other. Lt; / RTI >

In this case, the first and second grindstones 110 and 120 are also characterized by being the abrasive leathers 100 'and 200'.

In addition, the first and second grindstones 100 and 200 are rotatably installed in a housing 300 which is hermetically sealed inside, and the sponge 310 is embedded in the housing 300 with water filled therein, The upper surface of the first grindstone 310 is held in contact with the first and second grindstones 100 and 200.

According to the present invention, since the knife blade is erected using the warp-processed rotary type grindstone, the time required for grinding the blade is shortened, the polishing operation is easy, the polished surface is uniform and uniform and the quality is good, The cutting line can be polished for a long time, and the cutting force is improved, and the cutting material does not stick to the cutter after cutting, so that it is easy to use.

In addition, since the present invention allows only the grinding wheel to be detached and replaced when the grinding wheel is worn, the maintenance cost can be reduced.

1 and 2 are illustrations of a grinding wheel according to the prior art.
3 is an exemplary internal structural view of a replaceable grindstone assembly according to the present invention.
4 is an exemplary view showing another example of a replaceable grindstone assembly according to the present invention.
FIGS. 5 and 6 are views showing still another example of a replaceable grindstone assembly according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

As shown in FIG. 3, the replaceable grindstone assembly according to an embodiment of the present invention includes two grindstones, that is, a first grindstone 100 and a second grindstone 200.

At this time, the first and second grinding wheels 100 and 200 are preferably manufactured by putting a grinding stone powder, that is, a grinding stone powder into a mold, followed by compression molding.

In addition, the first and second grindstones 100 and 200 have a truncated cone shape, that is, a shape in which the upper end of the cone is cut horizontally. That is, when viewed from the cross-section shown in FIG. 3, And first and second non-oblique faces 120 and 220 horizontally extending from the first and second oblique faces 110 and 210. First and second through holes H1 and H2 are formed in the center of the circle in the longitudinal direction do.

The first and second non-oblique planes 120 and 220 are configured to be rotated in contact with each other while being rotated in opposite directions to each other.

An angle formed from the point where the first and second inclined surfaces 110 and 210 meet the first and second non-curved surfaces 120 and 220 is an angle at which the blade of the object such as a knife can be polished.

At this time, in the present invention, the length of the first and second inclined surfaces 110 and 210 is longer than the length of the first and second non-curved surfaces 120 and 220 so that the blade of the object to be polished can be lengthened.

Particularly, since the first and second non-oblique faces 120 and 220 are rotated in contact with each other, wear is progressed for a long period of time. At this time, wear is not simply worn out, In the process of polishing, since it is automatically worn in the form of 'V' according to the blade line, the service life can be extended for a very long time, which is almost semi-permanent.

On the other hand, the first and second fixing tables F1 and F2 are closely fixed to the rear end surfaces of the first and second grinding wheels 100 and 200, respectively.

The first and second fixing tables F1 and F2 are fixing members having the same diameter as the first and second non-oblique surfaces 110 and 210 of the first and second grinding wheels 100 and 200, The shafts S1 and S2 are protruded and the cylindrical first and second bosses B1 and B2 protrude from the center of the other side.

The first and second through holes H1 and H2 of the first and second grinding wheels 100 and 200 are inserted into the first and second fixing shafts S1 and S2, The first and second nuts N1 and N2 are fastened to the ends of the first and second fastening shafts S1 and S2 with the washer interposed therebetween to fix the first and second grinding wheels 100 and 200 .

At this time, if a plurality of embosses E and grooves (not numbered) for accommodating the embosses E are formed on the surfaces of the first and second grindstones 100 and 200 and the first and second fixing bars F1 and F2 facing each other, It is possible to prevent the first and second grinding wheels 100 and 200 from being slipped from the first and second fixing tables F1 and F2 when the first and second grinding wheels 100 and 200 are rotated.

The first and second rotation shafts 130 and 230 are fitted to the first and second bosses B1 and B2 and the first and second bosses B1 and B2 are fixed to the first and second rotation shafts 130 and 230, The first and second fixing bolts FB1 and FB2 penetrated vertically to the inside are fastened to firmly fix the first and second fixing frames F1 and F2 and the first and second rotation shafts 130 and 230 to each other, First and second driving motors 140 and 240 are connected to the first and second rotating shafts 130 and 230, respectively.

The fixing structures of the first and second fixing tables F1 and F2 and the first and second rotating shafts 130 and 230 are not limited to the first and second fixing bolts FB1 and FB2, The key and the key groove may be mutually assembled, and the coupling structure of the key and the key groove may be referred to another embodiment described later.

That is, as shown in FIG. 4 (a), the first and second fixing members F1 and F2 are formed into a plastic bobbin shape having an inner diameter, And the first and second keyways KH1 and KH2 are inserted into the first and second keyways KH1 and KH2.

In addition, the first and second fixing bases F1 and F2 of the plastic bobbin type may be formed into a truncated cone shape while the key coupling structure is maintained as described above, and then the first and second grinding wheels 100 and 200 may be directly formed on the outer circumferential surface The first and second grinding wheels 100 and 200 are manufactured by compression molding the grinding powder as described above. Therefore, when the first and second grinding wheels 100 and 200 are compression molded, ) Can be easily produced.

As another example, as shown in FIG. 4B, the first and second grindstones 100 and 200 may be made of abrasive leather (100'200 '), especially leather (100'200' You can also use a razor blade at a barber shop. This structure is applied to a structure in which the first and second fixing tables F1 and F2 themselves have a frustum shape.

As is well known, the abrasive leather (100 ', 200') is very tough and soft and suitable for raising a knife-like blade. Here, the meaning of raising the knife blade is to grind the completely blunt blade It is a concept that the blades made of alloy such as stainless steel are thinner than the blades which are made of stainless steel, so that the parts are oxidized by contact with oxygen, and the blades are removed by removing fine oxide remaining on the surface.

Therefore, the example shown in Fig. 4 (b) can be used when the already polished blade is finely finished so as to have a fine and sharp blade.

In addition, although not shown, the first and second driving motors 140 and 240 may be fixed to a motor base (not shown).

Of course, it is a matter of course that the inventive replacement type wheel-grinding assembly including the first and second driving motors 140 and 240 is constituted as a single unit, and it is natural for the present invention to describe only the main core configuration. This is because it is not necessary to limit the number of units because various variations are possible.

As shown in FIG. 5, in order to increase the polishing efficiency of polishing the blade by rotating the first and second grinding wheels 100 and 200, water should be used. In order to make the first and second grinding wheels 100 and 200 more convenient, And a sponge 310 built in the housing 300. The sponge 310 may be provided with a predetermined amount of water absorbed in the sponge 310, The first and second grindstones 100 and 200 may be rotated while being in contact with the sponge 310.

In this case, since the first and second grindstones 100 and 200 do not rotate as fast as industrial tools, the polishing by-products and water are not scattered much at a long distance during polishing, and almost all of the first and second grindstones 100, There is no big problem because it is the level that sinks to the room directly after it goes up.

In addition, although not shown, it is common that water is filled into the housing 300 between the spaces where the first and second grindstones 100 and 200 are installed to rotate. However, It is of course possible to form a hole (not shown).

Further, as shown in FIG. 6, one of the abrasive leathers 100 'and 200' may be further used to make one set of grindstone GS.

That is, a first grindstone 400 having a shape of grinding using a grinding stone is provided on one side of the housing 300, and a second grindstone 500 for finishing the shape of the first grindstone 400 So that the blade can be finely and sharply erected.

However, in this case, the second grindstone 500 uses leather, and since it does not directly grind the blade, it is preferably spaced apart from the sponge 310 so as not to contact with water.

Further, although not shown, the first grindstone 400 may be further subdivided so that a rough grindstone or two grindstones are provided, and then the grindstone is further polished so that finer and more precise grinding operations can be achieved. However, in this case, since the above-described configuration can be combined, the illustration is omitted.

In addition, the first and second driving motors 140 and 240 rotate in a direction opposite to each other, in particular, when the interchangeable type grindstone assembly is viewed from the top, so that when the user inserts the grindstone to be polished, It is desirable to allow the user to press the knife simply and naturally and conveniently so that the knurling operation is performed.

If it rotates in the opposite direction, it is sucked in at the moment of pushing the blade to grind the knife, so it should be careful to cause a safety accident.

Therefore, when viewed from the drawing, the first drive motor 140 has to rotate in the counterclockwise direction and the second drive motor 240 has to rotate in the clockwise direction.

According to another embodiment of the present invention, the grindstone of any one of the first and second grindstones 100 and 200 may not be formed with an inclined surface, so that only one side of the blade can be cut and polished.

The working relationship of the present invention having such a configuration is as follows.

If you want to polish the object and set the blade, first apply power.

The first and second driving motors 140 and 240 rotate in directions opposite to each other.

In this way, while the first and second driving motors 140 and 240 are rotating, the user grasps the knife to which the blade is to be set, and the blade rotates about the first and second inclined surfaces 110 and 210 and the first and second non- ), With the end of the knife facing upwards.

Then, the blade is polished while the first and second grindstones 100 and 200, i.e., the first and second slanted surfaces 110 and 210 are in contact with each other, and is attempted to be released by the rotational force.

In this state, when the user holds the knife and pulls it slightly, the knife moves in the oblique direction while the knife is moved.

Therefore, the polishing surface of the blade is formed by the first and second driving motors 140 and 240, which are driven to rotate at a uniform RPM, and the polishing surface is uniformly and uniformly maintained.

Therefore, when the sharpened knife is used, the ability to cut the object to be cut is improved, and even after the cutting, the surface of the blade is smooth and even, so that the object to be cut does not stick,

100: first grindstone 110: first inclined surface
120: first non-oblique face 130: first rotation axis
140: first driving motor 200: second wheel
210: second slope 220: second non-slope surface
230: second rotating shaft 240: second driving motor
300: housing 310: sponge
400: first grinding stone 500: second grinding stone

Claims

A first and a second grindstones (100, 200) for grinding the blade to grind the blade line, the grindstone assembly comprising:
The first and second grindstones 100 and 200 have first and second non-oblique surfaces 120 and 220 extending from the first and second oblique surfaces 110 and 210 and the first and second oblique surfaces 120 and 220, respectively, And the first and second non-curved surfaces 120 and 220 are disposed in contact with each other;
The first and second grinding wheels 100 and 200 are replaceably fixed through first and second fixing shafts S1 and S2 passing through the first and second grinding wheels 100 and 200 in the longitudinal direction, First and second fixing members F1 and F2 having diameters corresponding to the slopes 120 and 220, respectively;
The first and second rotation shafts 130 and 230 are fixed to the center of one side of the first and second fixing bases F1 and F2, respectively;
The first and second rotating shafts 130 and 230 are connected and fixed to the first and second driving motors 140 and 240 so as to rotate the first and second grinding wheels 100 and 200 in opposite directions facing each other. .

The method of claim 1,
A plurality of embossments E are formed on the surfaces of the first and second grinding wheels 100 and 200 and the first and second fixing tables F1 and F2 facing each other to increase the mutual coupling force and prevent mutual slip phenomenon Wherein the grindstone assembly includes a plurality of grindstones.

The method of claim 1,
The first and second fixing bases F1 and F2 are formed in a plastic bobbin shape having an inner diameter and the first and second keyways KH1 and KH2 are formed at corresponding positions of the inner diameter and the first and second rotation shafts 130 and 230 And the first and second keys K1 and K2 are inserted into the first and second keyways KH1 and KH2 so that the first and second fixing members F1 and F2 and the first and second rotation shafts 130 and 230 are mutually fixed Of the grinding wheel.

A first and a second grindstones (100, 200) for grinding the blade to grind the blade line, the grindstone assembly comprising:
A pair of first and second holding frames (F1, F2) which are machined into a plastic bobbin in the shape of a truncated cone and are placed in contact with each other;
The first and second grinding wheels 100 and 200 are formed on the outer circumferential surfaces of the first and second fixing tables F1 and F2, respectively;
The first and second rotation shafts 130 and 230 are key-engaged with the center of one side of the first and second fixing tables F1 and F2, respectively.
The first and second rotating shafts 130 and 230 are connected and fixed to the first and second driving motors 140 and 240 so as to rotate the first and second grinding wheels 100 and 200 in opposite directions facing each other. .

The method of claim 4,
Wherein the first and second grindstones (110, 120) are abrasive leather (100 ', 200').

The method according to any one of claims 1 to 4,
The first and second grindstones 100 and 200 are rotatably installed in an enclosed housing 300. The sponge 310 is embedded in the housing 300 so that the sponge 310 is filled with water. Is held in contact with the first and second grindstones (100, 200).