JP7440360B2 - Polishing equipment for angle steel materials - Google Patents

Description

The present invention relates to an apparatus for polishing the mountain side of an angle-shaped steel material while moving it in its longitudinal direction for the purpose of cleaning the surface before painting.

BACKGROUND ART Conventionally, a device described in Patent Document 1 is known as a keren machine in which a cup-shaped brush is attached to an electric drill driver-type main body.
On the other hand, Patent Document 2 describes a carriage for a cleaning device that cleans the wall surface of a large building made of large wave panels before painting, and is equipped with a magnetic roller that attracts the wall surface.

JP2003-231058A Japanese Unexamined Patent Publication No. 62-298474

None of the apparatuses described in Patent Documents 1 and 2 are capable of efficiently polishing angle steel materials.
Therefore, an object of the present invention is to provide an apparatus capable of efficiently polishing the mountain side of an angle steel material with a relatively small force while moving in its longitudinal direction.

The present invention will be described below with reference to the reference numerals in the accompanying drawings, but the present invention is not limited thereto.
A polishing apparatus 1 of the present invention for solving the above problems includes a traveling body 2 and a main body 3 supported by the traveling body 2. The traveling body 2 is equipped with magnetic wheels 6, 7, 8 which are attracted to the first and second mountain sides 303, 304 of the angle steel material 301, respectively, and by rolling the magnetic wheels 6, 7, 8, the angle shape is formed. It is movable in the longitudinal direction along the mountain sides 303, 304 of the steel material 301. The main body 3 includes a support frame 14 coupled to the traveling body 2, and a pair of polishing brushes 9, 10, 11, supported by the support frame 14 in contact with the first and second mountain sides 303, 304, respectively. 12, a drive device 13 supported by a support frame 14, and a transmission mechanism 16 supported by the support frame 14 so as to transmit the rotation of the drive device 13 to the polishing brushes 9, 10, 11, and 12. The support frame 14 includes a first support part 141 along the first mountain side 303 of the angle steel material 301 and a second support part 142 along the second mountain side 304. The polishing brushes 9, 10, 11, and 12 are such that the tips of the brush bristles touch at least the first or second mountain sides 303, 304 so that the pair can polish the entire width of the first or second mountain sides 303, 304. The swinging members 17, 18 are attached to the first or second support portions 141, 142 with their rotational axes 91, 101, 111, 121 perpendicular to the first or second mountain sides 303, 304. It is rotatably supported via. The swinging members 17, 18 are composed of first and second swinging members 17a, 17b, 18a, 18b, and are pivotally supported at the base end by the first or second support portions 141, 142 via coaxial shafts 19, 20. The angle-shaped steel members 301 extend in opposite directions along the longitudinal direction, and polishing brushes 9, 10, 11, and 12 are attached to the tips of the angle steel members 301, respectively. The first and second swinging members 17, 18 are elastic so as to position the polishing brushes 9, 10, 11, 12, respectively, in a position where they can work together to polish the entire width of the mountain sides 303, 304 of the angle steel material. It is rotatably biased and provided.

According to the polishing device of the present invention, the magnetic wheels 6, 7, 8 are attracted to the two mountain sides 303, 304 of the angle steel material 301, and the polishing brushes 9, 10, 11, 12 are attached to the two mountain sides 303, 304. The two mountain sides 303 and 304 can be efficiently polished at the same time by moving the angle steel material 301 in the longitudinal direction while they are in pressure contact with each other.

FIG. 1 is a perspective view showing a state in which the polishing apparatus according to the present invention is used. FIG. 2 is a front view of the polishing apparatus of FIG. 1. FIG. FIG. 2 is a rear view of the polishing apparatus of FIG. 1; FIG. 2 is a plan view of the polishing apparatus of FIG. 1. FIG. FIG. 2 is a right side view of the polishing apparatus of FIG. 1. FIG. FIG. 2 is a left side view of the polishing apparatus of FIG. 1. FIG.

Embodiments of the present invention will be described with reference to the drawings.
The angle-shaped steel material 301 shown in FIG. 1, which is the object of polishing by the polishing apparatus 1, is an angle-shaped steel material that constitutes four main pillars of a truss column built as an overhead wire column for a railroad track, for example.

The angle steel material 301 has first and second mountain sides 303 and 304 that are in contact with each other at right angles at a ridge portion 302 . The polishing device 1 is operated along the mountain side surfaces 303 and 304 of the angle steel material 301 in the longitudinal direction (hereinafter, this direction will be described as the vertical direction, the orthogonal direction to the horizontal direction or the horizontal direction, the mountain side as the rear, and the valley side as the front). This device polishes the two left and right mountain sides 303 and 304 at the same time while moving in directions (not limited to these directions depending on the usage situation).

As shown in FIG. 1, the polishing device 1 includes a running body 2 that is movable in the longitudinal direction along the mountain sides 303, 304 of an angle steel material 301, and a main body 3 supported by the running body 2.

As clearly shown in FIGS. 2 to 6, the traveling body 2 includes two upper and lower frames 4 and 5, and magnetic wheels 6, 7, and 8 supported by these frames 4 and 5.

The main body 3 includes a pair of left and right polishing brushes 9, 10, 11, and 12 for polishing each mountain side surface 303, 304 of the angle steel material 301, a drive device 13 for the brushes, and a support frame 14 for connecting the two. .

The traveling body 2 will be explained in more detail. As clearly shown in FIG. 4, the upper frame 4 constituting the traveling body 2 includes a pair of arm portions 41 and 42, a connecting portion 43 that connects the base ends of these arms, and a connecting portion 43 that extends downward from the connecting portion 43. It has a connecting part 44. The pair of arm parts 41 and 42 extend perpendicularly to each other along the mountain sides 303 and 304 of the angle steel material 301 (FIG. 1), and the connecting part 43 and the connecting part 44 are connected to the ridge part 302 of the angle steel material 301. opposite.

The magnet wheels 6 are supported at the tips of the arm parts 41 and 42 so as to be able to roll on the mountain sides 303 and 304 of the angle steel material 301 in the vertical direction. A V-grooved roller 15 (FIGS. 2 and 4) that rolls on the ridge 302 of the angle steel material 301 is provided inside the connecting portion 43, and a roller 15 with a V groove (see FIGS. A magnetic wheel 7 is supported so as to be able to roll vertically along it (FIG. 1). The attraction force of any of the magnetic wheels 6, 7, and 8 can be turned on and off. The support frame 14 of the main body 3 is fixed to the lower part of the connection part 44.

The lower frame body 5 constituting the traveling body 2 has a pair of arm parts 51 and 52 that extend orthogonally to each other along the mountain sides 303 and 304 of the angle steel material 301, and is connected to the drive device 13 by a clamp fitting 53. be done. A magnet wheel 8 is supported at the tip portions of the arm portions 51 and 52 so as to be able to roll on the mountain sides 303 and 304 of the angle steel material 301 in the vertical direction.

Next, the main body 3 will be explained. The main body 3 includes a support frame 14, polishing brushes 9, 10, 11, 12 supported by the support frame 14 via swinging members 17, 18, a drive device 13 for the brushes, and a transmission mechanism 16 (FIG. 4) between the two. It is connected to the upper frame body 4 of the traveling body 2 via the support frame 14 .

In the illustrated embodiment, the drive device 13 for the polishing brushes 9, 10, 11, and 12 is a commercially available cordless disc grinder, but is not limited thereto. The drive device 13 includes a handle portion 131 that extends in the vertical direction, a head portion 132 at the upper portion thereof, and a spindle 133 (FIG. 4) that is an output shaft that projects from the head portion 132 in the front-rear direction. The drive device 13 is connected to the lower frame 5 of the traveling body 2 through a clamp fitting 53 at a handle portion 131 .

The support frame 14 of the main body 3 has a case shape, and the head portion 132 of the drive device 13 is connected to the rear side. As shown by broken lines in FIG. 4, the spindle 133 protrudes into the support frame 14, and rotates the left and right pairs of polishing brushes 9, 10, 11, and 12 via a transmission mechanism 16 consisting of gears, belts, etc. It is connected to the shafts 91, 101, 111, and 121.

The support frame 14 includes a first support part 141 along the first mountain side 303 of the angle steel material 301 and a second support part 142 along the second mountain side 304.

The polishing brushes 9, 10, 11, and 12 are cup brushes, and their rotating shafts 91, 101, 111, and 121 are directed perpendicularly to the mountain sides 303, 304, and the polishing brushes 9, 10, 11, and 12 are rotated through the swinging members 17 and It is supported by two support parts 141 and 142. The polishing brushes 9, 10, 11, and 12 have rotating shafts 91, 101, 111, and 121 that are elastically supported in the axial direction by springs on rocking members 17 and 18, and have chevrons at their centers. It is equipped with magnets 92, 102, 112, and 122 that attract the mountain sides 302, 303 of the steel material. The axial elastic support of the rotating shafts 91, 101, 111, 121 and the magnetic force of the magnets 92, 102, 112, 122 combine to elastically press the tips of the brush bristles against the mountain sides 302, 303. . This provides a constant brush pressing force against the mountain sides 302, 303, prevents the device from rebounding due to unevenness, and provides a uniform polished surface.

The swinging members 17, 18 consist of two upper and lower swinging members 17a, 17b, 18a, 18b, respectively, and are pivoted on the first or second support portions 141, 142 by coaxial shafts 18, 19 at their base ends. be supported. The swinging members 17 and 18 extend in opposite directions (up and down) along the longitudinal direction of the angle steel material 301 from their base ends, and polishing brushes 9, 10, 11, and 12 are attached to their distal ends, respectively.

The polishing brushes 9, 10, 11, and 12 can polish the entire width with the tips of the brush bristles in contact with at least half the width of the mountain sides 303, 304, and with the upper and lower pairs offset in the width direction of the mountain sides 303, 304. The first and second swinging members 17a, 17b, 18a, 18b are placed in the basic position in which the upper and lower polishing brushes 9, 10, 11, and 12 are shifted, respectively, as shown by the arrows in FIG. It is provided to be elastically biased to rotate.

By elastically swinging the swinging members 17a, 17b, 18a, 18b as appropriate, each pair of polishing brushes 9, 10, 11, 12 can be polished like a bolt 305 protruding from the mountain sides 303, 304. The mountain sides 303 and 304 can be polished smoothly while avoiding protrusions.

When polishing the mountain sides 303, 304 of the angle steel material 301 using the polishing device 1, for example, grip the handle 131 of the drive device 13, direct the polishing device 1 toward the mountain sides 303, 304 of the angle steel material 301, The magnetic wheels 6, 7, 8 are attracted to the edge of the mountain side 303, 304 or the ridge 302. The drive device 13 is turned on, and while the brushes 9, 10, 11, and 12 are rotated, the polishing device 1 is manually moved up and down along the mountain sides 303, 304 for polishing. As shown in FIG. 1, when the bolts 305 and the like protrude in the middle of the mountain sides 303 and 304, when the brushes 9, 10, 11, and 12 are moved from the bottom to the top, the upper swinging member 18a is moved. In FIG. 1, it swings to the right against the urging force, avoids the bolt 305, polishes the right side of the bolt 305, and returns to its original position after passing through this. Next, the lower swinging member 18b swings to the left in FIG. 1 against the urging force, avoids the bolt 305 and grinds around the left side of the bolt 305, and returns to the original position after passing through this. .

The present invention is applicable not only to the embodiments described above, but also to angle steel materials in various other installation forms, such as use in angle steel materials used for horizontally arranged beams and the like.

1 Polishing device 2 Running body 3 Main body 4 Upper frame 41 Arm portion 42 Arm portion 43 Connection portion 44 Connection portion 5 Lower frame 51 Arm portion 52 Arm portion 53 Clamp fitting 6 Magnetic wheel 7 Magnetic wheel 8 Magnetic wheel 9 Polishing brush 91 Shaft 92 Magnet 10 Polishing brush 101 Shaft 102 Magnet 11 Polishing brush 111 Shaft 112 Magnet 12 Polishing brush 121 Shaft 122 Magnet 13 Drive device 131 Handle part 132 Head part 133 Spindle 14 Support frame 141 First support part 142 Second support part 15 Roller 16 Transmission mechanism 17 Swing member 17a Upper swing member 17b Lower swing member 18 Swing member 18a Upper swing member 18b Lower swing member 18 Connection portion 19 Shaft 20 Shaft 301 Angle steel material 302 Ridge portion 303 Mountain side 304 Mountain side 305 bolt

Claims (4)

An apparatus for polishing first and second mountain sides of an angle steel material while moving in the longitudinal direction,
A running body that is movable in the longitudinal direction along the mountain side of the angle steel material, and a main body that is coupled to the running body and polishes the first and second mountain sides,
The running body is configured to include magnetic wheels that are attracted to the first and second mountain sides, respectively, and to be movable in the longitudinal direction along the mountain sides of the angle steel material by rolling the magnetic wheels,
The main body includes a support frame coupled to the traveling body, a pair of polishing brushes supported by the support frame so as to be in contact with the first and second mountain sides, respectively, and a pair of polishing brushes supported by the support frame. comprising a drive device and a transmission mechanism supported by the support frame so as to transmit rotation of the drive device to the polishing brush,
The support frame includes a first support part along a first mountain side of the angle steel material and a second support part along a second mountain side,
The polishing brushes have tips of brush bristles in contact with at least half the width of the first or second mountain sides, and the rotation axis thereof is set in the direction of the rotation axis so that the pair of polishing brushes can polish the entire width of the first or second mountain sides. rotatably supported by the first or second support part via a swinging member, perpendicular to the first or second mountain side;
The rocking member is coaxially supported at the base end by a first or second support part, extends in mutually opposite directions along the longitudinal direction of the angle steel material, and the polishing brush is attached to each distal end. the pair of polishing brushes are elastically biased to rotate so as to work together to polish the entire width of the mountain side of the angle-shaped steel material; is,
Thereby, each pair of polishing brushes is configured to be able to polish the first or second mountain side surface of the angle steel material while avoiding protrusions from the first or second mountain side surface. Polishing equipment for angle-shaped steel materials. The main body is supported by the support frame so as to be attracted to the first or second mountain side surface of the angle steel material and press the bristles of the polishing brush against the first or second mountain surface of the angle steel material. 2. The angle iron polishing apparatus according to claim 1, further comprising a magnet. The polishing brush is a cup brush, and the magnet is attached to the center of the cup brush and to the first or second mountain side of the angle steel material, so that the bristles of the cup brush are attached to the angle steel material. 3. The angle steel polishing apparatus according to claim 2, wherein the apparatus is provided so as to be brought into pressure contact with the first or second mountain side. 4. The apparatus for polishing angle steel materials according to claim 3, wherein the rotation shaft of the polishing brush is elastically supported by the swinging member in the axial direction by a spring.

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