JP2002273658A - Polisher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an operator from inspiring chips, and dispense with a suctioning operation of them using a vacuum cleaner or the like or preclude them from being left not suctioned after a polishing operation, by preventing chips from scattering in the air during polishing. SOLUTION: A polisher 1 has a rotary plate 7 with a polishing surface 8 at the front, mounted on a rotary shaft 6 rotatively driven by a driving means 3. A dust collecting cover 9 is disposed over an outer circumference of the rotary plate 7 with a dust collecting clearance 10 formed in between. The dust collecting cover 9 has a discharge opening 11 at a part. A dust collecting mechanism 13 forms a dust collecting passage 12 between the discharge opening 11 and the dust collecting clearance 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing apparatus used for polishing wood, metal or plastic with woodwork, metalwork, hobby or the like.

[0002]

2. Description of the Related Art In general, a polishing apparatus of this type is configured such that a rotating plate having a polishing surface formed on the front surface is driven to rotate by a driving means, and the object to be polished is polished on the rotating polishing surface. I have. However, when the object to be polished is polished with such a rotating polishing surface, the polished chips are picked up by the rotating polishing surface and scattered around, and the scattered chips are sucked by a vacuum cleaner at the end of the work. I am trying to do it.

[0003]

In the above-mentioned conventional polishing apparatus, since chips are scattered in the air during polishing, the worker sucks the chips, which is a problem in hygiene.
In addition, since the swarf flying in the air is extensive,
There is also a problem that a lot of time and labor are required for suction with a vacuum cleaner or the like. In addition, the fine swarf is tatami eyes,
There is also a problem that a large amount of residue can be formed because the carpet is likely to enter the raised portion or a narrow gap. Therefore, the present invention has been proposed in view of the above-described problems, and prevents the cutting powder from being scattered in the air during polishing, and the worker sucks or
It is an object of the present invention to eliminate a suction operation using a vacuum cleaner or the like after the polishing operation and to remove residual suction.

[0004]

In order to achieve the above object, a polishing apparatus according to the present invention is a polishing apparatus in which a rotary plate having a polishing surface formed on a front surface is attached to a rotating shaft which is driven to rotate by a driving means. A dust collecting cover is disposed on the outer peripheral surface of the rotating plate with a dust collecting gap provided, and a discharge port is provided in a part of the dust collecting cover, and the dust collecting gap between the discharge port and the dust collecting gap is provided. A dust collecting mechanism for forming a dust collecting passage therebetween is provided.

Next, a centrifugal fan is provided between the rotating plate and the driving means and is driven to rotate by the driving means. The suction port of the outer centrifugal fan communicates with the dust collecting gap, and the outer peripheral portion of the centrifugal fan is used as the discharge port. It is also characterized in that a dust collection passage is formed so as to be in communication, and a dust collection bag is attached to the discharge port.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a polishing apparatus according to an embodiment of the present invention. FIG. 1 is a perspective view of a polishing apparatus, and FIG. 2 is a cross-sectional view thereof. In the figure, reference numeral 1 indicates the polishing apparatus as a whole. The polishing apparatus 1 includes a driving unit 3 incorporated in a casing 2 and a rotary polishing unit 4 on a front surface of the casing 2. The driving means 3 includes an electric motor 5 and a control device (not shown) for controlling on / off and rotation of the electric motor 5. The rotary polishing section 4 has a rotary plate 7 attached to an output shaft (rotary shaft) 6 of an electric motor 5, and a polishing surface 8 formed by attaching a sandpaper to a front surface of the rotary plate 7.

A dust collecting cover 9 is attached to the outer periphery of the rotating plate 7 with a suction gap 10 formed between the dust collecting cover 9 and the peripheral portion of the rotating plate 7.
Is open. In addition, the suction gap 10 and the discharge port 1 are provided on the output shaft 6 of the electric motor 5 on the back side of the rotary plate 7.
1 and a dust collecting mechanism 13 for forming a dust collecting passage 12 there between.
Is provided.

As shown in FIG. 3, the dust collecting mechanism 13 includes a blast blade 1 having a circular substrate 14 drawn in a gentle arc.
5 is formed radially, and a centrifugal fan 18 having a blast blade 15 attached to the front end face thereof and a rectifying disk 17 having a suction opening 16 formed in the center thereof is attached to the rear face of the rotating plate 7 by an electric motor. 5 is attached to the output shaft 6 portion, and an inflow gap 1 is provided between the suction opening 16 and the rotary plate 7.
8 are formed. In the drawing, reference numeral 20 denotes a work mounting table formed in front of the polishing surface 8, and reference numeral 21 denotes a breathable dust collection bag attached to the discharge port 11.

The procedure for using the polishing apparatus 1 formed as described above will be described below. First, the electric motor 5 of the driving means 3
Is started and the rotating plate 7 of the rotary polishing unit 4 is rotated.
The polishing surface 8 is driven to rotate. Next, the work 22 placed on the work mounting table 20 is brought into contact with the rotating polishing surface 8 to polish a desired portion thereof. At this time, the centrifugal fan 18 of the dust collecting mechanism 13 is driven to rotate by the activation of the electric motor 5, so that the swarf polished from the work 22 flows along the dust collecting passage 12 indicated by an arrow in FIG. From the suction gap 10 between the peripheral portion of the rotating plate 7 and the suction opening 16
After being sucked into the dust collecting cover 9, the dust is released from the discharge port 11 opened to the dust collecting cover 9 and is captured by the dust collecting bag 21.
No release to the outside.

In the above embodiment, the dust collecting cover 8 is used.
Although a dust bag 21 is provided in the discharge port 11 formed in the suction opening 16, for example, a suction hose of a vacuum cleaner is connected to the suction opening 16 (not shown),
To the outside by a duct or the like,
Can be omitted. When a suction hose of a vacuum cleaner is connected to the suction opening 16, the suction force of the vacuum cleaner is used as the dust collecting mechanism 13, and the centrifugal fan 18 can be omitted.

[0011]

As described above, in the polishing apparatus according to the present invention, the dust collecting cover is provided on the outer peripheral surface of the rotating plate having the polished surface on the front face with the dust collecting gap provided. A discharge port is provided in a part of the dust collection cover, and a centrifugal fan that is rotationally driven by a driving means is provided between the discharge port and the dust collection gap, and the suction port of the outer centrifugal fan communicates with the dust collection gap. A dust collecting mechanism in which the outer peripheral portion of the centrifugal fan communicates with the discharge port, or a suction path formed by connecting a suction port of, for example, an electric vacuum cleaner to the discharge port, so that chips generated on the polished surface Is sucked into the dust collecting gap without scattering to the surroundings.

As a result, unlike a conventional polishing apparatus, it is possible to prevent an operator from sucking chips generated during polishing, thereby eliminating a problem in hygiene. Also,
Chips generated during polishing are scattered into the air at almost the same time as the generated chips are scattered in the air. Therefore, there is no need to perform suction cleaning with a vacuum cleaner after polishing as in the past. There is also an advantage that a great deal of time and labor required for this cleaning operation can be eliminated. Furthermore, since the chips are sucked into the dust collecting gap almost simultaneously with the generation and the scattering is prevented, fine chips as in the prior art do not enter the tatami eyes or the raised part of the carpet, narrow gaps, etc. There is also an advantage that no suction residue can be generated.

[Brief description of the drawings]

FIG. 1 is a perspective view of a polishing apparatus according to the present invention.

FIG. 2 is a cross-sectional view of the polishing apparatus according to the present invention.

FIG. 3 is an exploded perspective view of a rotary polishing section of the polishing apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Polishing device 3 ... Driving means 6 ... Rotating shaft 7 ... Rotating plate 8 ... Polishing surface 9 ... Dust collection cover 10 ... Dust collection gap 11 ... Discharge Outlet 12: dust collecting passage 13: dust collecting mechanism 18: centrifugal fan 21: dust collecting bag

Claims (3)

[Claims] 1. A polishing apparatus comprising: a rotating plate having a polishing surface formed on a front surface thereof mounted on a rotating shaft which is rotationally driven by a driving means. A dust collecting cover is provided on an outer peripheral surface of the rotating plate, and a dust collecting gap is formed. The polishing is provided in a state where the dust collecting cover is provided, a discharge port is provided in a part of the dust collecting cover, and a dust collecting mechanism for forming a dust collecting passage between the discharge port and the dust collecting gap is provided. apparatus. 2. A centrifugal fan rotatably driven by the driving means is provided between the rotating plate and the driving means, the suction port of the outer centrifugal fan communicates with the dust collecting gap, and the outer peripheral portion of the centrifugal fan communicates with the discharge port. The dust collection passage is formed by performing the above operation.
3. The polishing apparatus according to claim 1. 3. The polishing apparatus according to claim 1, wherein a dust bag is attached to the discharge port.