KR101310756B1 - Rotation blade assembly of grinder - Google Patents

Rotation blade assembly of grinder Download PDF

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Publication number
KR101310756B1
KR101310756B1 KR1020120028566A KR20120028566A KR101310756B1 KR 101310756 B1 KR101310756 B1 KR 101310756B1 KR 1020120028566 A KR1020120028566 A KR 1020120028566A KR 20120028566 A KR20120028566 A KR 20120028566A KR 101310756 B1 KR101310756 B1 KR 101310756B1
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South Korea
Prior art keywords
sandpaper
assembly
grinder
cap
fiber
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KR1020120028566A
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Korean (ko)
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이기천
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이기천
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/02—Backings, e.g. foils, webs, mesh fabrics

Abstract

PURPOSE: A rotary blade assembly of a grinder is provided to improve work efficiency by simultaneously grinding entire surfaces such as curved surface or edges. CONSTITUTION: A rotary blade assembly of a grinder comprises a fiber, a lower cap, an assembly sandpaper, and an upper cap. The fiber forms a through hole in the center and has a recessed groove on the outer circumference. The lower cap is installed at a lower part of the fiber. The assembly sandpaper is installed at an upper part of the fiber and two sandpapers are laminated and assembled by being mutually inserted. The upper cap is installed to an upper part of the assembly sandpaper and is assembled with the lower cap. A through hole is formed in the center of the upper cap and a lower end part is penetrated through the assembly sandpaper. The upper cap has the structure fixated by being curved and pressurized relative to the lower cap.

Description

그라인더의 회전날 조립체{rotation blade assembly of grinder}Rotary blade assembly of grinder

본 발명은 예를들어, 용접 작업 후 그 거칠어진 용접 표면을 평탄화하기 위해 연마하는 그라인더장치의 회전체인 회전날 조립체에 관한 것이다
The present invention relates to a rotary blade assembly, for example a rotating body of a grinder device that polishes to smooth its roughened weld surface after a welding operation.

[문헌1] 실용신안등록 20-870446(2004. 12. 06)[Document 1] Utility Model Registration 20-870446 (2004. 12. 06)

[문헌2} 공개특허공보 88-3689(1988. 05. 28)
[Patent 2] Publication No. 88-3689 (May 28, 1988)

그라인더 작업시 대체로 평탄한 표면에서는 그라인딩 작업에 있어 문제가 없으나, 굴곡이 있는 곡면 또는 모서리 부분에서는 일부 접촉면만 평면으로 접촉하여 갈아지므로 부분적이 그라인딩 작업을 여러 번 반복하여야 하는 단점이 있다. 따라서 작업 작업효율이 떨어진다In the grinder work, there is no problem in grinding work on a generally flat surface, but only a part of the contact surface is ground in a curved curved or corner portion, so that the grinding work has to be repeated several times. Therefore, work efficiency is inferior

아울러 도 1 에서 보듯이, 종래의 그라인더 회전날은 연마면(50)이 호 형상으로 이루어져, 원주상에 배열되어 일일이 하나하나 접착되어 있어서 그 조립 및 부착 작업이 매우 번거롭고 힘들면 제조 시간이 오래 걸리고 제조비도 상승되는 단점이 있다. 또한 연마면(50)이 방사상으로 부분적으로 형성되어 있어 그 연마 효율도 떨어진다In addition, as shown in Figure 1, the conventional grinder rotary blade is made of an arc shape, the polishing surface 50 is arranged on the circumference is bonded one by one, so the assembly and attachment work is very cumbersome and difficult to take a long manufacturing time and manufacture Rain also has the disadvantage of being raised. In addition, since the polishing surface 50 is partially formed radially, the polishing efficiency is also reduced.

본 발명은 상기한 점을 감안하여 발명한 것으로, 굴곡이 있는 곡면 또는 모서리 부분에서도 좌우 모든 면에 대하여 그라인딩 작업이 동시에 이루어질 수 있어 작업 효율이 크게 향상되며, 아울러 그라인더 회전날의 조립 및 제작이 매우 간편하고 제조비도 저렴하며, 종래 보다 더욱 장기간 사용 가능한 회전연마 조립체를 제공함에 본 발명의 목적에 있다
The present invention has been invented in view of the above-mentioned, and the grinding work can be performed simultaneously on both the left and right surfaces even in the curved surface or the corner with the bend, and the work efficiency is greatly improved, and the assembly and fabrication of the grinder rotary blade is very It is an object of the present invention to provide a rotary polishing assembly which is simple and inexpensive, and which can be used longer than before.

본 발명을 달성하기 위한 본 발명의 주요 구성은, 그라인더의 회전날 조립체에 있어서, 중앙에 통공이 형성되고 그 외주에 오목한 홈을 갖는 화이버(21)와, 상기 화이버(21) 하부에 설치되는 하부캡(22)과, 상기 화이버(21)의 상부에 설치되며 2 장의 사포를 적층하여 상호 끼워져 들어가게 조립된 조립사포(20)와, 상기 조립사포(20) 상부에 설치되어 상기 하부캡(22)과 조립되어 고정되는 상부캡(25)을 포함하는 것을 특징으로 하며, 상기 조립사포(20)는, 방사상으로 절개된 형상의 방사절개부(3)와, 방사절개부(3) 하단부에서 가로로 절개되는 가로절개부(4)를 갖는 전면사포(1)와, 전면사포(1) 후방에서 겹쳐지게 끼워지도록, 방사상으로 절개된 구조의 방사절개부(11)에 의하여 절개편(12)이 형성되게 구성된 후면사포(10)를 포함하는 것을 특징으로 하며, 상기 상부캡(25)은 중앙에 통공이 형성되며 그 하단부(26)는 조립사포(20)를 관통하여 끼워져 설치됨과 동시에 절곡되어 하부캡(22)에 대하여 가압되어 고정되는 구조인 것을 특징으로 하며, 상기 후면사포(10)는 전면사포(1) 후방에서 2 장 설치되는 것을 특징으로 하며, 상기 전면사포(1)와 후방사포(10)는 사포의 조도가 상이한 것을 특징으로 한다
The main configuration of the present invention for achieving the present invention, in the rotary blade assembly of the grinder, a fiber 21 having a through-hole formed in the center and a concave groove in the outer periphery, and a lower portion provided below the fiber 21 Cap 22 and the assembly sandpaper 20 is installed on the top of the fiber 21, the two sandpapers are assembled to be sandwiched and fitted into each other, and the lower cap 22 is installed on the assembly sandpaper 20 And characterized in that it comprises a top cap 25 is fixed and assembled, the assembly sandpaper 20, the radial cut portion 3 of the radially cut shape, and the radial cut portion 3 horizontally from the lower end A cut piece 12 is formed by a front sandpaper 1 having a horizontal cut portion 4 to be cut and a radial cut portion 11 of a radially cut structure so as to be overlapped at the rear of the front sandpaper 1. Characterized in that it comprises a rear sandpaper 10, the upper 25 is a through-hole is formed in the center and the lower end 26 is inserted through the assembly sandpaper 20 is installed and bent at the same time is characterized in that the structure is fixed by pressing against the lower cap 22, The cotton sandpaper 10 is characterized in that two pieces are installed in the rear of the front sandpaper (1), the front sandpaper (1) and the rear sandpaper (10) is characterized in that the roughness of the sandpaper is different.

본 발명에 의하면 굴곡면이나 모서리면에서 평탄작업이 종래 경우 여러 번 작업해야하고 그 작업이 어려우나 본 발명은 그러한 곡면 부분에서도 부드럽게 연속 작업 가능하여 작업 효율이 높다According to the present invention, if the flat work on the curved surface or the corner surface is conventionally required to work several times and the work is difficult, but the present invention can be smoothly continuous work even on such curved parts, the work efficiency is high.

아울러 전체적으로 연마면이 형성되어 연마 효율이 우수하고, 마모된 표면뒤에 겹쳐진 연마면이 지속적으로 나타나므로 그라인더의 사용 수명이 길다In addition, the grinding surface is formed as a whole, the polishing efficiency is excellent, and the surface of the polished surface that is superimposed behind the worn surface is continuously present, so the life of the grinder is long.

또한 본 발명에 의하면, 사포가 종래와 같이 본딩 작업으로 구성되지 않고 조립방식이어서 그 조립이 용이하다. 또한 상부캡(25)의 리벳작업으로 조립하므로 그 조립작업이 더욱 신속 편리하다
In addition, according to the present invention, the sandpaper is not composed of a bonding operation as in the prior art, and is easy to assemble because it is an assembly method. In addition, assembling by riveting the upper cap 25, the assembly work is more convenient quickly.

도 1 은 종래의 연마날을 예시하는 도면
도 2 는 본 발명에 따른 전면사포와 후면사포를 예시하는 도면
도 3 은 두 사포를 겹친 형상을 보여주는 도면
도 4 는 조립사포 뒤에 화이버가 설치되는 것을 설명하기 위한 도면
도 5 는 본 발명에 따른 회전체(30)에 대한 조립 단면도1 illustrates a conventional polishing blade
2 is a diagram illustrating a front sandpaper and a rear sandpaper according to the present invention;
3 shows a shape in which two sandpapers are overlapped;
Figure 4 is a view for explaining that the fiber is installed behind the assembly sandpaper
5 is an assembled cross-sectional view of the rotating body 30 according to the present invention.

이하, 본 발명을 첨부 도면에 의거 상술한다EMBODIMENT OF THE INVENTION Hereinafter, this invention is explained in full detail based on an accompanying drawing.

도 2 는 본 발명에 따른 그라인더의 회전체 표면에 드러나는 사포를 예시한다2 illustrates sandpaper exposed on the rotor surface of the grinder according to the present invention.

본 발명에서는 사포를 2 개를 겹치도록 하였다. 전면에 설치되는 전면사포(1)에는 중앙에 통공(2)이 형성되고 방사상으로는 방사절개부(3)가 형성되고 그 하부에는 가로로 가로절개부(4)가 형성된다In the present invention, two sandpapers were overlapped. In the front sandpaper (1) installed on the front surface is formed with a through hole (2) in the center, the radial cut portion (3) is formed radially and the horizontal cut portion (4) is formed in the lower portion

전면사포(1)의 후방에서 상기 전면사포(1)에 겹쳐지도록 설치되는 후방사포(10)는 방사절개부(11)만 형성한다. 이 두개를 겹치면, 도 3 과 같은 상태가 된다. 즉, 도 2 에서 후방사포(10)의 절개편(12)을 전면사포(1)의 방사절개부(3)를 통하여 끼운 후, 전면사포(1)에 형성된 가로절개부(4) 방향으로, 즉 원주 방향으로 돌리면 도 3 과 같이 절개편(12)들이 사이사이에 끼워진 상태가 된다The rear sandpaper 10 installed to overlap the front sandpaper 1 at the rear of the front sandpaper 1 forms only the radiation cutout 11. When these two overlap, it will be in the state like FIG. That is, after inserting the cut piece 12 of the rear sandpaper 10 through the radial cut portion 3 of the front sandpaper 1 in FIG. 2, in the direction of the horizontal cut portion 4 formed on the front sandpaper 1, That is, when turned in the circumferential direction, the incision pieces 12 are sandwiched between them as shown in FIG. 3.

도 2 에서 방사절개부(3,11)는 도면에서는 비록 6 개 형성하였으나 그 이상의 갯수로 형성할 수 있음은 물론이다In FIG. 2, although six radiation cutouts 3 and 11 are formed in the drawing, the radiation cutouts 3 and 11 may be formed in a larger number.

도 4 는 도 3 과 같이 조립된 조립사포(20) 후방에 화이버(21)가 조립되는 것을 보여주기 위해 나란히 배열한 도면이다FIG. 4 is a view arranged side by side to show that the fibers 21 are assembled behind the assembly sandpaper 20 assembled as in FIG. 3.

도 5 는 그라인더이 회전축에 조립되는 그라인더 회전체(30)에 대한 조립 단면을 설명하기 위한 도면이다FIG. 5 is a view for explaining an assembly section of the grinder rotating body 30 in which the grinder is assembled to the rotating shaft.

도시한 바와 같이, 회전체(30)의 조립 구성은, 조립사포(20)를 화이버(21)에 적층시킨 후, 화이버(21) 하부에는 하부캡(22)을 위치시키고 상부에서 중앙공(31)을 통하여 상부캡(25)를 끼워 넣는다. 화이버(21)는 플라스틱 등의 재질로 형성된다. 이때 상부캡(25)의 하단은 직선으로 가공되어 있다As shown, the assembly structure of the rotating body 30, after the assembly sandpaper 20 is laminated on the fiber 21, the lower cap 22 is positioned below the fiber 21 and the central hole 31 from the top. Insert the upper cap 25 through the). The fiber 21 is formed of a material such as plastic. At this time, the lower end of the upper cap 25 is processed in a straight line.

이렇게 조립한 후, 상부캡(25)의 직선형상이 하단부(26)를 리벳조립하듯 펀칭작업 등으로 두둘겨 외측으로 굽혀서 전체를 일체로 조립한다.
After assembling this, the straight shape of the upper cap 25 is doubled by punching work or the like as the rivet assembly of the lower end portion 26, and the whole is integrally assembled.

이상과 같이 제작되는 본 발명에 따른 그라인더 회전체(30)를 사용하여 그라인더 작업하면 2 장이 적층된 상태의 조립사포(20)가 회전하므로 2 장의 사포가 작업 표면에 대하여 상하로 너덜거리는 동작이 이루어지므로, 굴곡면이나 모서리면에서도 골고루 원활한 작업이 가능하고, 2 장의 사포가 충분히 겹쳐 있어 사포가 비록 마모하여도 마모 후에도 새로운 새 사포면이 나타나므로 연속적으로 장기간 사용이 가능하다.When the grinder work using the grinder rotating body 30 according to the present invention manufactured as described above, since the assembly sandpaper 20 rotates in a state where two sheets are stacked, two sandpapers are rattled up and down with respect to the work surface. Since it is possible to work smoothly even on the curved surface or the edge surface, and two sandpapers are sufficiently overlapped, even if the sandpaper is worn out, a new new sandpaper surface appears even after abrasion, so that it can be used continuously for a long time.

본 발명은 다른 실시 예로 사포를 3 장도 적층되게 끼울 수도 있다According to another embodiment of the present invention, three sheets of sandpaper may be sandwiched.

예를들어, 전면사포(1) 후방에 끼우는 후면사포(10) 외에 추가로 한장의 사포를 후방사포(10)와 유사한 형상으로 가공하여, 전면사포(1)에 추가로 더 끼워 넣을 수도 있다.For example, in addition to the rear sandpaper 10 to be fitted behind the front sandpaper 1, by processing a single sandpaper in a shape similar to the rear sandpaper 10, it may be further inserted into the front sandpaper (1).

또 다른 실시 예로는 전면사포(1)와 후방사포(10)의 사포의 조도를 달리하여 조립할 수도 있다. 이 경우, 한번의 회전체(3) 회전으로, 한번은 강하게 연마하고 그 다음은 약하게 연마하는 작업이 동시에 연속으로 이루어져, 한번에 강하게 연마하기 조심스러운 면에 대하여 가공하기에 유리하다.Another embodiment may be assembled by varying the roughness of the sandpaper of the front sandpaper 1 and the rear sandpaper 10. In this case, with one rotation of the rotating body 3, once the grinding operation is performed strongly and then the grinding operation is performed continuously at the same time, it is advantageous to work on the surface which is careful to grind hard at once.

본 발명의 실시 예는 바람직한 한 실시예로 설명하였으며 본 발명의 실시 범위 내에서 여러 변형 실시가 가능함은 물론이다.
The embodiment of the present invention has been described as a preferred embodiment, and various modifications are possible within the scope of the present invention.

1 전면사포 2 통공
3 방사절개부 4 가로절개부
10 후면사포 11 방사절개부
12 절개편 20 조립사포
21 화이버 22 하부캡
25 상부캡 26 하단부
30 회전체 50 연마면1 front sandpaper 2 through
3 Radial Incision 4 Transverse Incision
10 Rear sandpaper 11 Radiation incision
12 cut pieces 20 assembly sandpaper
21 Fiber 22 Lower Cap
25 Upper Cap 26 Lower Section
30 Rotating Body 50 Polishing Surface

Claims (5)

그라인더의 회전날 조립체에 있어서,
중앙에 통공이 형성되고 그 외주에 오목한 홈을 갖는 화이버(21)와
상기 화이버(21) 하부에 설치되는 하부캡(22)과,
상기 화이버(21)의 상부에 설치되며 2 장의 사포를 적층하여 상호 끼워져 들어가게 조립된 조립사포(20)와,
상기 조립사포(20) 상부에 설치되어 상기 하부캡(22)과 조립되어 고정되는 상부캡(25)을 포함하며,
상기 상부캡(25)은 중앙에 통공이 형성되며 그 하단부(26)는 조립사포(20)를 관통하여 끼워져 설치됨과 동시에 절곡되어 하부캡(22)에 대하여 가압되어 고정되는 구조인 것을 특징으로 하는 그라인더의 회전날 조립체 In the rotary blade assembly of the grinder,
Fiber 21 having a through hole formed in the center and having a concave groove on its outer circumference
A lower cap 22 installed below the fiber 21;
An assembly sandpaper 20 installed at the top of the fiber 21 and assembled to stack two sandpapers into each other;
It is installed on the assembly sandpaper 20 and includes an upper cap 25 is assembled and fixed to the lower cap 22,
The upper cap 25 has a through-hole is formed in the center and the lower end 26 is inserted through the assembly sandpaper 20 is installed and bent at the same time is pressed to the lower cap 22 is characterized in that the structure is fixed Rotary blade assembly of grinder 제 1 항에 있어서, 상기 조립사포(20)는,
방사상으로 절개된 형상의 방사절개부(3)와, 방사절개부(3) 하단부에서 가로로 절개되는 가로절개부(4)를 갖는 전면사포(1)와,
전면사포(1) 후방에서 겹쳐지게 끼워지도록, 방사상으로 절개된 구조의 방사절개부(11)에 의하여 절개편(12)이 형성되게 구성된 후면사포(10)를 포함하는 것을 특징으로 하는 그라인더의 회전날 조립체 According to claim 1, The assembly sandpaper 20,
A front sandpaper (1) having a radial incision (3) in the shape of a radial incision, a horizontal incision (4) cut horizontally at the lower end of the radiation incision (3),
Rotation of the grinder, characterized in that it comprises a rear sandpaper (10) configured to form the cutting piece 12 by the radial incision 11 of the radially cut structure so as to overlap the rear of the front sandpaper (1) Blade assembly 삭제delete 제 2 항에 있어서,
상기 후면사포(10)는 전면사포(1) 후방에서 2 장 설치되는 것을 특징으로 하는 그라인더의 회전날 조립체 3. The method of claim 2,
The rear sandpaper 10 is a rotary blade assembly of the grinder, characterized in that two pieces are installed in the rear of the front sandpaper (1) 제 2 항에 있어서,
상기 전면사포(1)와 후방사포(10)는 사포의 조도가 상이한 것을 특징으로 하는 그라인더의 회전날 조립체
3. The method of claim 2,
The front sandpaper (1) and the rear sandpaper (10) is a rotary blade assembly of the grinder, characterized in that the roughness of the sandpaper is different
KR1020120028566A 2012-03-21 2012-03-21 Rotation blade assembly of grinder KR101310756B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018226068A1 (en) * 2017-06-09 2018-12-13 김점용 Fixing assembly and grinder including same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004050355A (en) 2002-07-19 2004-02-19 Niyuurejisuton Kk Laminated-type rotation polishing device and its using method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004050355A (en) 2002-07-19 2004-02-19 Niyuurejisuton Kk Laminated-type rotation polishing device and its using method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018226068A1 (en) * 2017-06-09 2018-12-13 김점용 Fixing assembly and grinder including same

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