KR20150005286A

KR20150005286A - Dust collector of grinder

Info

Publication number: KR20150005286A
Application number: KR1020130079045A
Authority: KR
Inventors: 김성수
Original assignee: 김성수
Priority date: 2013-07-05
Filing date: 2013-07-05
Publication date: 2015-01-14

Abstract

The present invention relates to a grinder dust collecting apparatus, and more particularly, to a dust collecting apparatus for grinding dust on a shaft rim portion (2) of a grinder (1) in order to prevent dust from spreading and to improve working environment by collecting dust generated during a work A top plate 14 connected to a lower portion of the fixing band and covering an upper portion of the grinding wheel 4; and a side wall 15 extending downward from the outer circumference of the top plate so that the grinding wheel covers the side portion. A cover member 10 including an induction hole 16 formed at one side of the side wall and a suction pipe 17 extending from an outer surface of the side wall and communicating with the induction hole 16; An upper plate 22 connected to the upper plate 14 via a hinge 30 and an extending member 20 extending downward from one side of the upper plate 22 and including side walls 21 covering the side portions of the grinding wheel 20 The grinder dust collecting apparatus is characterized by comprising:

Description

[0001] DUST COLLECTOR OF GRINDER [0002]

The present invention relates to a dust collecting apparatus for a grinder, and more particularly to a dust collecting apparatus for a grinder capable of effectively collecting dust generated by friction with a grinding wheel during a grinding operation.

Generally, a grinder is a device for grinding a surface of an object by grinding a grinding wheel such as a disk-shaped charcoal or abrasive sandpaper and rotating it at a high speed.

However, most of the objects to be grinded are metallic materials, so that dusts such as metal powders generated during friction with the grinding wheel are spread around the work area by the grinding wheel rotating at a high speed, causing the following problems.

First, fine dust particles float in the air around the workplace, and when such dusts are inhaled, they can be unpleasant and can cause problems in the respiratory system.

Secondly, since the scattered dust is not treated separately, it will pollute the air and it can cause damage to people nearby.

Third, scattered dust is scattered like a guide, so it is hard to work precisely because it covers the field of view and it can cause safety accidents.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a grinder dust collecting apparatus capable of preventing dust from diffusing and improving working environment by collecting dust generated during grinding work.

In order to achieve the above object, according to the present invention, there is provided a grinding machine comprising a grinding wheel, a grinding wheel and a grinding wheel, A side wall 15 extending downward from the outer periphery of the upper plate so as to cover the sides of the grinding wheel; an induction hole 16 formed at one side of the side wall; (10) including a suction pipe (17) communicating with the suction port (16); An upper plate 22 connected to the upper plate 14 via a hinge 30 and an extending member 20 extending downward from one side of the upper plate 22 and including side walls 21 covering the side portions of the grinding wheel 20 ). &Lt; / RTI >

Preferably, a plate-shaped stopper 23 may be provided on the inner surface of the elongate member 20 to block dust that is ground by the grinding wheel.

The first auxiliary stopper 23a may be further extended downward from the inner surface of the upper plate 22 of the extension member 20 so as to prevent the dust that strikes against the stopper 23 from flowing backward.

On the inner surface of the upper plate 14 of the cover member, a second auxiliary stopper 23b in the form of a plate that separates the guide hole 16 from the center of the grinding wheel may be installed downward.

The present invention is characterized in that a first pin 41 is provided on the outer surface of the side wall 15 of the cover member and a second pin 42 is provided on the outer surface of the side wall 21 of the extending member, And a spring 40 interconnecting the first pin 42 and the second pin 42.

According to the present invention, a cover is provided around the grinding wheel, and the cover is connected to the vacuum suction device by a hose or the like. Particularly, by providing a stopper for preventing the dust from rotating on the inner wall of the cover, have.

As a result, scattering of dust can be minimized, so that it is possible to improve the working environment by improving the working environment without adding any harm to the worker or the surrounding people, and has a useful effect of producing a high quality product.

1 is an exploded perspective view of a grinder and a dust collecting apparatus according to an embodiment of the present invention;
FIG. 2 is an assembled perspective view of a grinder and a dust collecting apparatus according to an embodiment of the present invention; FIG.
3 is a sectional view of a grinder dust collecting apparatus according to an embodiment of the present invention;
4 is a side view of a grinder dust collecting apparatus according to an embodiment of the present invention;
5 is a side view showing the use state of the grinder dust collecting apparatus according to the embodiment of the present invention.
6 is a bottom view of a grinder dust collecting apparatus according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings, which show preferred embodiments of the present invention. It should be understood, however, that there is no intention to limit the invention to the particular form disclosed, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. A detailed description thereof will be omitted.

FIG. 1 is an exploded perspective view of a grinder and a dust collecting apparatus according to an embodiment of the present invention, FIG. 2 is an assembled perspective view of a grinder and a dust collecting apparatus according to an embodiment of the present invention, FIG. 4 is a side view of a grinder dust collecting apparatus according to an embodiment of the present invention. FIG.

1 to 3, the grinder 1 is generally provided with a shaft screw 3 capable of mounting a grinding wheel 4 on one side thereof and capable of rotating at a high speed, A shaft rim portion 2 for protecting the shaft is provided.

A grinder dust collecting apparatus of the present invention is detachably provided on a shaft rim portion (2) of a grinder (1) and is provided so as to cover at least an upper portion and a side portion of the grinding wheel (4).

More specifically, the grinder dust collecting apparatus of the present invention includes a fixing band 11 that can be detachably attached to the shaft rim portion 2 of the grinder 1. The flange 13 is formed at each end of the band so as to be opposed to each other and the bolts 12 formed in the flange 13 are fastened to each other by the fastening band 11 11) can be tightened or loosened to the shaft rim portion (2).

The grinder dust collecting apparatus comprises an upper plate 14 connected to a lower portion of the fixing band 11 and covering an upper portion of the grinding wheel 4, and a side wall 14 extending downward from the outer periphery of the upper plate, (15). The upper plate 14 may be, for example, a semicircular plate, and an inner portion thereof may be connected to a portion of the fixing band 11.

An induction hole 16 is formed in a part of the side wall 15 of the cover member and a suction pipe 17 is connected to the induction hole 16. That is, the suction pipe 17 is a tubular pipe in the form of a circular tube connected to the outer surface of the side wall 15 of the cover member, and a hole is formed in the side wall 15 to which the suction pipe 17 is connected, like the induction hole 16.

The suction pipe 17 sucks air to draw dust generated during grinding, and air suction means (not shown) such as a vacuum pump is connected thereto.

1 and 4, an extension member 20 is provided at one side of the cover member 10, and the cover member 10 and the extension member 20 are connected to each other via a hinge 30, do.

The extension member 20 includes an upper plate 22 and a side wall 21. The upper plate 22 of the extension member is connected to the upper plate 14 of the cover member via a hinge 30, The side wall 21 of the extension member may extend downward from the edge of the upper plate 22 to cover a side portion of the grinding wheel 4.

4, a first pin 41 is provided on the outer surface of the side wall 15 of the cover member 10 and a second pin 42 is provided on the outer surface of the side wall 21 of the extending member 20 The first pin 41 and the second pin 42 are interconnected through a coil spring 40, for example.

1, a plate-shaped stopper 23 may be provided on the inner surface of the extension member 20, and an upper plate 22 may be provided on the inner surface of the upper plate 22 of the extension member 20, And a second auxiliary stopper 23a extending in a downward direction from the center of the grinding wheel to the center of the grinding wheel. 22 may be installed downward, and the configuration and operation thereof will be described in the following description of the operation of the present invention.

FIG. 5 is a side view showing a grinder dust collecting apparatus according to an embodiment of the present invention, and FIG. 6 is a bottom view of a grinder dust collecting apparatus according to an embodiment of the present invention.

5, when the grinder is tilted to grind the object 5, the grinding wheel 4 abuts against the surface of the object 5 to be polished. At this time, So that the work can be continued by rotating the hinge 30 about the inclined angle. When the grinder is lifted, the extension member 20 is returned to the position shown in Fig. 4 by the elastic force of the spring 40. [

6, the front portion of the grinding wheel 4, that is, the portion of the grinding wheel 4 in contact with the object to be polished in FIG. 6, is in contact with the object to be polished at this time, To the elongate member 20 by the grinding wheel 4,

At this time, since the dust is sprayed at a very high speed, a part of the dust may not be sucked into the suction pipe 17 but may be scattered to the outside around the inner surface of the cover member 10.

Therefore, as shown in FIGS. 1 and 6, when the plate-shaped stopper 23 is provided on the inner surface of the elongate member 20 to block the dust that is grinded by the grinding wheel, the dust collides with the stopper 23 and decelerates All can be discharged to the suction pipe 17 by the suction force.

In order to prevent the dust that has struck the stopper 23 from flowing backward and scattered to the outside, a first auxiliary stopper 23a extending downward from the inner surface of the upper plate 22 of the extension member 20 is installed. In this case, the dust can be prevented from flowing backward by being reflected by the stopper 23.

A plate second auxiliary stopper 23b is provided on the inner surface of the upper plate 14 of the cover member so as to separate the guide hole 16 from the center of the grinding wheel. When the end portion is connected to the end portion of the first auxiliary stopper 23a, it is possible to effectively reduce backwash of the dust reflected by the stopper 23 in the other direction, thereby collecting almost all the dust.

The main feature of the present invention is that the stopper 23 and the auxiliary stoppers 23a and 23b are provided to minimize the scattering of dust to the outside without being sucked sufficiently when the dust is sprayed at a high speed. May be suitably modified or changed.

Although the present invention has been described in connection with the preferred embodiments described above, it will be appreciated by those skilled in the art that various other modifications and variations can be made without departing from the spirit and scope of the invention, All such changes and modifications are intended to be within the scope of the appended claims.

1: Grinder 2: Shaft edge portion
3: Screw thread 4: Grinding wheel
10: cover member 11: fixing band
12: Bolt 13: Flange
14: top plate 15: side wall
16: induction hole 17: suction pipe
20: extension member 21: side wall
22: top plate 23: stopper
23a: first auxiliary stopper 23b: second auxiliary stopper
30: Hinge 40: Spring
41: first pin 42: second pin

Claims

A fixing band 11 detachable from the shaft rim portion 2 of the grinder 1; an upper plate 14 connected to the lower portion of the fixing band and covering the upper portion of the grinding wheel 4; And a suction pipe (17) extending from an outer surface of the side wall and communicating with the induction hole (16), wherein the induction hole (16) is formed at one side of the side wall, (10);
An upper plate 22 connected to the upper plate 14 via a hinge 30 and an extending member 20 extending downward from one side of the upper plate 22 and including side walls 21 covering the side portions of the grinding wheel 20 );
And a dust collecting device for dust collecting the grinder.

The method according to claim 1,
Wherein a stopper (23) in the form of a plate is provided on the inner surface of the extension member (20) so as to block dust that is grinded by the grinding wheel and flying.

3. The method of claim 2,
Further comprising a first auxiliary stopper (23a) extending downward from an inner surface of the upper plate (22) of the extension member (20) so as to prevent dust that strikes the stopper (23) from flowing backward. .

The method according to claim 1,
And a second auxiliary stopper (23b) in the form of a plate that separates the guide hole (16) from the center of the grinding wheel is provided on the inner surface of the upper plate (14) of the cover member.

The method according to claim 1,
A first pin 41 is provided on the outer surface of the side wall 15 of the cover member and a second pin 42 is provided on the outer surface of the side wall 21 of the extending member, Further comprising a spring (40) interconnecting the pins (42).