KR20100084590A

KR20100084590A - A grinder with suction hood

Info

Publication number: KR20100084590A
Application number: KR1020090003960A
Authority: KR
Inventors: 김태훈
Original assignee: 김태훈
Priority date: 2009-01-17
Filing date: 2009-01-17
Publication date: 2010-07-27

Abstract

The present invention relates to a polishing machine equipped with a suction hood, comprising a driving device, a polishing pad vertically coupled to the driving device, and a polishing hood for collecting dust, wherein the suction hood comprises the driving device and the polishing pad. The inner bowl is in close contact with the outer circumferential surface of the driving device, the lower inner circumferential surface is spaced apart from the side surface of the polishing pad, and the end portion of the suction hood is formed between the lower surface and the upper surface of the polishing pad, so Is generated and prevents the dust from being polished by the rotation of the polishing pad from scattering to the side of the polishing pad. Significantly reduced and the complete suction of ground dust and dirt reduces the time to polish the workpiece There is an effect that can be a lot more polished workpiece control.

Description

A grinder with suction hood {A grinder with suction hood}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing machine equipped with a dust hood, and more particularly, to a polishing machine equipped with a dust hood for absorbing dust generated by surface polishing in automobile coating or woodworking.

In general, the grinding machine is used to polish the surface of the workpiece of the metal, wood and stone by the frictional force of the polishing pad installed on the lower surface, in addition to the air used for various purposes such as rust removal, painting removal of the metal surface It is a tool.

Conventionally, an air inlet port, an air discharge port, and a suction port are provided in the main body, and a polishing pad is attached to the polishing pad having a suction hole formed at a lower side thereof while being rotated by the force of air, and the polishing pad is rotated by air introduced through the air inlet port. An air sander, which is driven and is introduced into the compressor or dust collecting device, receives dust generated from the work through the suction hole and is discharged to the suction port.

1 is a schematic diagram in which dust is absorbed in a conventional air sander.

As shown in FIG. 1, the dust generated from the workpiece is sucked into the suction port 6 through the suction hole 5 formed in the polishing pad 4 or by the rotation of the polishing pad 4. 4) It is scattered to the outside.

However, such a conventional grinding machine is to suck the dust by rotating the force of the air flowing into the main body, so the suction force is very weak and does not properly collect all the dust generated from the workpiece.

In addition, there is a problem that the polishing surface and the suction surface is matched to reduce the efficiency of suction into the suction hole, as well as the non-suction dust is scattered to the operator by the rotation of the polishing pad.

2 is a cross-sectional view of a conventional polishing machine equipped with a suction hood.

As shown in FIG. 2, the suction hood 7 is mounted on the polishing machine, and the suction hood 7 is coupled to the driving device 2 side of the polishing machine, and is spaced apart from the upper surface of the polishing pad 4. Is fitted. Dust which cannot be sucked into the suction hole 5 is sucked into the dust hole 8 formed in the suction hood 7.

However, such a conventional grinding machine equipped with a dust hood has a problem that the separation distance between the polishing surface and the dust hole is far intake suction efficiency, and prevents dust from scattering to the side of the polishing pad.

The present invention has been made in order to solve the above problems, an object of the present invention is to mount the suction hood equipped with a suction hole in the polishing machine to recover dust more effectively inhaled by the driving force of the motor built into the main body A grinder equipped with a hood is provided.

In addition, the present invention is to provide a polishing machine equipped with a dust absorption hood dust is not scattered to the outside of the polishing pad.

In order to achieve the above object, the present invention provides a polishing device comprising a driving device, a polishing pad vertically coupled to the driving device, and a dust absorption hood for absorbing dust, wherein the suction hood comprises the driving device and the polishing pad. The inner bowl is in close contact with the outer circumferential surface of the driving device, the lower inner circumferential surface is spaced apart from the side surface of the polishing pad, and the end portion of the suction hood is formed between the lower surface and the upper surface of the polishing pad, so Is generated and prevented from being scattered by the rotation of the polishing pad to the side of the polishing pad.

Preferably, the suction hood is formed in a hollow ring shape in the lower side of the suction hole is formed in the lower direction from the outer surface in which the suction coupling portion is in close contact with the inner circumferential surface and the outer surface of the suction hole is formed; It is characterized by consisting of a dust collecting hood spaced apart from the side of the polishing pad and a predetermined distance spaced apart from the lower surface of the polishing pad, the dust collecting port communicated to the outer peripheral surface of the polishing coupling portion in a cylindrical shape.

Preferably, the coupling groove is formed on the inner peripheral surface of the abrasive coupling portion is characterized in that the transmission device is tightly coupled to the coupling groove.

Preferably, the suction hole is characterized in that a plurality is formed along the lower circumferential surface of the abrasive coupling portion.

Preferably, the dust collector is characterized in that the coupling device is coupled to the vacuum suction device having a power supply device is coupled to the vacuum suction device.

As described above, the present invention is to produce a vacuum hood including a suction hole spaced apart from the polishing pad of the polishing machine,

First, there is an effect that the work avoidance rate of the worker is significantly reduced by changing the workplace where the ground dust and dust were scattered into a pleasant environment.

Second, the polished dust and dust are completely sucked in, which reduces the time for polishing the workpiece, thereby polishing more workpieces.

Hereinafter, with reference to the accompanying drawings, a grinding machine equipped with a suction hood according to the present invention will be described in detail.

Figure 3 is a perspective view of a polishing machine equipped with a suction hood according to a preferred embodiment of the present invention, Figure 4 (A, B) is a perspective view of the suction hood according to a preferred embodiment of the present invention.

As shown in Figure 3, 4, the present invention is a drive device 2 including a drive shaft and a polishing pad (4) which rotates in combination perpendicular to the drive shaft and the suction is mounted on the outer peripheral surface of the drive device (2) It is composed of a hood (10) is a basic structure of a polishing machine for polishing the workpiece, in the present invention, the structure and principle of the polishing machine is made of metal, wood and stone by the frictional force of the polishing pad (4) installed on the lower surface Since the invention is based on the principle of polishing the surface of the workpiece and is mounted on the side of the auxiliary member rather than the driving principle and structure of the polishing machine, a detailed description thereof will be omitted.

The suction hood 10 is a bowl-shaped synthetic resin material surrounding the driving device 2 and the polishing pad 4, and an abrasive coupling part 20 having an upper inside in close contact with an outer circumferential surface of the driving device 2. The inner peripheral surface is spaced apart from the side of the polishing pad (4), but the end of the suction hood 10 is formed between the lower surface and the upper surface of the polishing pad (4) dust removal that the step is generated with the surface of the polishing pad (4) The hood cover 30 and the dust collecting port 40 communicated with the upper portion of the abrasive coupling portion 20, the basic configuration.

Each configuration will be described in more detail as follows.

The abrasive coupling portion 20 is a hollow ring shape so that the grinding machine is inserted or penetrated in the lower side is a suction hole 34 which is a passage through which dust is sucked, but a plurality of suction holes 34 are formed along the circumferential surface thereof. The dust scattered by the rotation of the polishing pad 4 is sucked in 360 °.

An outer circumferential surface of the driving device 2 of the polishing machine and an inner circumferential surface of the abrasive coupling portion 20 are coupled, but a coupling groove 22 may be formed on the annular inner circumferential surface of the annular inner circumferential surface so as to be firmly coupled to the polishing machine or to prevent separation from the polishing machine. .

The suction hood cover 30 has a bowl shape surrounding a portion of the driving device 2 and the polishing pad 4 in a downward direction from an outer surface of the suction hole 34 formed in the abrasive coupling portion 20. Side part.

The driving device 2 and the polishing pad 4 may be spaced apart from each other by a predetermined distance, but the suction hood cover 30 may be spaced apart from the inner surface of the polishing pad 4 by 2 to 4 mm. If the interval is too wide, the suction force decreases by that amount, which reduces the efficiency of sucking dust. If the interval is narrowed, the suction force increases, but the dust that cannot be sucked up and scatters more.

In addition, an end portion of the suction hood cover 30 is positioned between the upper surface and the lower surface of the polishing pad 4 to form a step with the workpiece, and the step is preferably 0.5 to 1 mm. If the same as the surface of the polishing pad (4) is damaged by the lower surface of the dust absorption hood cover 30, and if the step is large, the efficiency of sucking dust should be lowered to maintain the optimum height.

The dust collector 40 has a cylindrical shape, one end of which is in communication with the upper side of the abrasive coupling portion 20, and the other end thereof is connected to the suction port or the discharge port of the polishing machine.

Preferably, since the driving force of the grinding machine is weak to suck the dust, it is preferable that the coupling hole 42 is adjusted in width so as to be combined with a separate dust collector.

However, as shown in FIG. 3, a certain amount of dust is sucked out through the suction hole 5 formed in the polishing pad 4 as in the related art.

Mounting the suction hood to the polishing machine of the present invention as described above as a basic technical idea, which is merely exemplary, and those skilled in the art that various modifications and equivalent embodiments are possible from this. As will be appreciated, the true technical protection scope of the present invention should be defined only by the appended claims.

1 is a cross-sectional view of a conventional grinding machine.

3 is a perspective view of a polishing machine equipped with a suction hood according to a preferred embodiment of the present invention.

Figure 4 (A, B) is a perspective view of a dust hood according to a preferred embodiment of the present invention.

2: drive unit 4: polishing pad

5: suction hole 6: suction port

7, 10: Dust collection hood 8: Dust

20: abrasive coupling portion 22: coupling groove

30: dust cover 34: vacuum hole

40: dust collector 42: coupling sphere

Claims

In the polishing machine comprising a drive device, a polishing pad coupled to the drive device perpendicularly and a dust absorption hood to suck up dust,

The suction hood,

A bowl shape surrounding the driving device and the polishing pad, the upper inner side is in close contact with the outer circumferential surface of the driving device, the lower inner circumferential surface is spaced apart from the side of the polishing pad, the end of the suction hood between the lower surface and the upper surface of the polishing pad Formed in the polishing pad surface and the step is made,

A suction hole is formed at the lower side of the hollow ring shape and is in contact with the inner circumferential surface and is bonded to the outer circumferential surface of the driving device. Spaced apart and a dust cover is formed in the upper step than the lower surface of the polishing pad, and a dust collecting port communicated to the outer peripheral surface of the one side of the polishing coupling portion in a cylindrical shape,

A coupling groove is formed on the inner circumferential surface of the abrasive coupling part so that the transmission device is tightly coupled to the coupling groove.

The suction hole,

A plurality is formed along the lower circumferential surface of the abrasive coupling portion,

The dust collector,

The dust collector is characterized in that the coupling is coupled to the vacuum suction unit having a power supply device is fastened to the vacuum suction unit,

And a dust extraction hood, wherein the dust is prevented from being scattered by the rotation of the polishing pad to the side of the polishing pad.