KR20140100713A - Motorized abrasive device - Google Patents

Motorized abrasive device Download PDF

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Publication number
KR20140100713A
KR20140100713A KR1020130013783A KR20130013783A KR20140100713A KR 20140100713 A KR20140100713 A KR 20140100713A KR 1020130013783 A KR1020130013783 A KR 1020130013783A KR 20130013783 A KR20130013783 A KR 20130013783A KR 20140100713 A KR20140100713 A KR 20140100713A
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KR
South Korea
Prior art keywords
polishing
floor
bracket
moving
grinding
Prior art date
Application number
KR1020130013783A
Other languages
Korean (ko)
Inventor
김희수
Original Assignee
김희수
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김희수 filed Critical 김희수
Priority to KR1020130013783A priority Critical patent/KR20140100713A/en
Publication of KR20140100713A publication Critical patent/KR20140100713A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0007—Movable machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0084—Other grinding machines or devices the grinding wheel support being angularly adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/04—Protective covers for the grinding wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/06—Hand moving equipment, e.g. handle bars

Abstract

The present invention relates to an electric polishing apparatus, and more particularly, to an electric polishing apparatus comprising: a polishing disk for polishing a substrate in contact with a floor; polishing means installed vertically including a driving motor for driving the polishing disk; A dust collecting means for sucking and removing dust generated due to polishing of the polishing disk; A moving truck equipped with wheels for collecting the grinding means and the dust collecting means and moving smoothly; A plunger provided at an upper rear end of the moving lane and having a handle at an end thereof so that an operator can easily move the plunger; And an operating portion provided on the rear side of the moving truck for operating the polishing means and the dust collecting means,
And a position changing means for changing the position of the wheel provided at the lower end of the moving bogie so as to be able to change the center of gravity of the electric polishing apparatus and adjust the pressing force of the grinding means in contact with the floor. An electric grinding apparatus is provided.
According to the present invention configured as described above, it is possible to easily adjust the polishing thickness according to the type and material of the floor through the positional correlation between the center of gravity of the polishing apparatus and the center of the wheel, It is possible to quickly and easily carry out the replacement and maintenance of the polishing pad by laying down the apparatus, thereby facilitating the storage of the pushing rod and allowing the polishing pad to always contact the surface of the floor regardless of the inclination and bend of the floor, There are advantages to be able to.

Description

[0001] The present invention relates to a motorized abrasive device,

The present invention relates to an electric polishing apparatus, and more particularly, to an electric polishing apparatus capable of adjusting a position of a wheel installed on a moving carriage by forward and backward movement, and by means of a positional correlation between a center of gravity of the polishing apparatus and a center of a wheel, The present invention relates to an electric polishing apparatus capable of easily adjusting a polishing thickness according to the type and material of a floor by changing the pressing force to be pressed.

Generally, the surface of the building floor made of marble, concrete, etc. is polished to smooth the surface, or the deck surface of the steel vessel is polished to remove the rust, or to remove the floor paint made of waterproof paint such as epoxy. do.

In this manner, a wet-type electric polishing apparatus is used to polish the bottom surface of a water-laid floor (hereinafter referred to as "floor") made of marble, concrete, steel, and paint with an abrasive tip such as diamond or carbon steel .

In the case of the above-mentioned wet method, since the polishing efficiency is low and the post-processing operation is complicated, an electric polishing apparatus for polishing the surface of the floor in a dry manner has recently been widely used.

Such an electric polishing apparatus is constituted by a driving device for mounting and rotating a polishing pad on a movable moving carriage. The driving apparatus is usually installed in front of a moving carriage and is configured to be in close contact with the floor.

In the electric polishing apparatus having such a structure, it is very difficult to replace the polishing pad mounted on the bottom of the driving magnetic body. In order to replace the polishing pad, the driving apparatus must be lifted up. This task was difficult and dangerous.

As shown in FIG. 1 for the above-mentioned problem, as proposed in a conventional 'polishing machine' of Japanese Patent Application Laid-Open No. 10-1171153, a moving carriage 100 having wheels for movement is provided. A driving device 200 mounted on the front of the moving carriage 100 for mounting and rotating one or more polishing pads on the floor; A first cylinder 300 installed vertically to the left and right of the moving carriage 100 for lifting the moving carriage 100 and the driving apparatus 200; And a second cylinder (400) installed between the moving carriage (100) and the driving device (200) for rotating the driving device (200) about the axis by pushing or pulling the driving device (200) The means for installing the first cylinder 300 on the left and right sides of the moving carriage 100 are connected in a horizontal direction from any one point of the first cylinder 300 and the intermediate point is connected to the left and right sides of the moving carriage 100 A lever 310 to be axially coupled; And a third cylinder 500 connected to the ends of the left and right levers 310. The upper and lower ends of the third and fourth cylinders 500 and 500 are bent in a ' A handle 110 axially coupled to an upper portion of a rear side of the handle 110; A pedestal 120 installed at the rear left and right of the moving carriage 100 to support the handle 110; And a footrest 130 axially coupled to the lower portion of the rear side of the moving carriage 100 and folded upward or downward to raise the foot with respect to the axis.

In the conventional structure as described above, the operation of replacing the polishing pad can be carried out conveniently and safely with the driving device lifted.

However, since the operation of the first, second and third chambers for replacing the polishing pad is driven by pneumatic or hydraulic pressure, A separate hydraulic or pneumatic supply device must be installed in addition to electric power, and the cost of equipment such as a joint structure for additional coupling to each cylinder is required, .

In the conventional electric polishing apparatus, the polishing pad is pressed to polish the surface of the floor by the load due to the entire weight, and the center of gravity is fixed at all times. Therefore, depending on the type of the floor to be polished, There is a problem that the load of the driving device is significant and the service life of the driving device is shortened.

In order to overcome the above-mentioned problems, the present invention provides a method of controlling the position of a wheel installed on a moving carriage by forward and backward movements of the wheel, And an object of the present invention is to provide an electric polishing apparatus capable of easily adjusting the polishing thickness according to the type and material of the floor by changing the pressing force to be pressed.

Further, the present invention is characterized in that, at the rear end of the moving carriage, a pivot for use of the polishing apparatus is pivotably hinged and includes locking means for fixing the pivot at a specified angle, Another purpose is to provide an electric grinding device that uses a storage as well as a grinding device that does not use a grinding device.

According to the present invention, there is provided an electric polishing apparatus in which a polishing surface can be obtained by bringing the polishing pad into contact with the surface of the floor at all times regardless of the inclination and bending of the floor, There is another purpose.

According to an aspect of the present invention, there is provided a polishing apparatus comprising: a polishing disk for polishing a substrate in contact with a floor; a polishing means installed vertically including a driving motor for driving the polishing disk; A dust collecting means for sucking and removing dust generated due to polishing of the polishing disk; A moving truck equipped with wheels for collecting the grinding means and the dust collecting means and moving smoothly; A plunger provided at an upper rear end of the moving lane and having a handle at an end thereof so that an operator can easily move the plunger; And an operating portion provided on the rear side of the moving truck for operating the polishing means and the dust collecting means,

And a position changing means for changing the position of the wheel provided at the lower end of the moving bogie so as to be able to change the center of gravity of the electric polishing apparatus and adjust the pressing force of the grinding means in contact with the floor. An electric grinding apparatus is provided.

Here, the position changing means comprises: a support plate installed at both lower ends of the moving carriage, each having a long hole formed in the horizontal direction, and two or more shaft fixing holes extending in the upward direction of the long hole; A wheel shaft formed in the slot formed in the support plate and having wheels at both ends thereof to be rotatable; And a pull-out handle protruding in a rear direction of the moving carriage at the center of the wheel axis so that the operator grips the wheel spindle and the wheel spindle is moved forward and backward along the slot of the support plate to be positioned in the shaft fixing hole. do.

In addition, the position changing means may include: a support plate installed at both lower ends of the moving carriage and having a long hole formed in the horizontal direction; A wheel shaft formed in the slot formed in the support plate and having wheels at both ends thereof to be rotatable; And a transfer jig which is coupled to any one part of the wheel shaft and moves back and forth along the slot of the support plate by the operation of the operation unit.

A rotating bracket is formed at the rear upper end of the moving carriage so that the end of the rotating shaft is rotatably hinged. A locking groove formed at an arbitrary interval around the rotating bracket is formed at the position of the locking groove And a locking means capable of arbitrarily fixing the position of the operator.

The locking means includes a lever which is exposed to a manipulation hole formed as a slot along the longitudinal direction on one side of the plunger and is operated by the operator in the forward and backward directions along the manipulation hole; A rod connected to one end of the lever and forward and backward in the longitudinal direction inside the plunger; A fixing bracket for fixing the rod to the plunger such that the rod is operated only in the longitudinal direction inside the plunger; A locking bracket connected to the other end of the rod and including a locking pin inserted into the locking groove; And a spring installed between the locking bracket and the fixing bracket for elastically returning the locking bracket to an original position.

In addition, a hinge bracket having a first hinge hole formed on both sides of the circumference of the grinding means and protruding upward, a support portion having a second hinge hole corresponding to the hinge bracket is formed on the front side of the moving bike, The first hinge hole of the bracket and the second hinge hole of the support portion are coupled by a pivot pin so that the polishing disc is always in contact with the floor regardless of the inclination of the moving pallet and the floor.

According to the present invention configured as described above, it is possible to easily adjust the polishing thickness according to the type and material of the floor through the positional correlation between the center of gravity of the polishing apparatus and the center of the wheel, It is possible to quickly and easily carry out the replacement and maintenance of the polishing pad by laying down the apparatus, thereby facilitating the storage of the pushing rod and allowing the polishing pad to always contact the surface of the floor regardless of the inclination and bend of the floor, There are advantages to be able to.

1 is a schematic diagram of a conventional electric polishing apparatus
2 is a diagram showing the configuration and operation state of the electric polishing apparatus according to the present invention
Figs. 3A and 3B are views showing a configuration of a position changing means and an operating state diagram
4 (a) and 4 (b) are cross-sectional views of the operating state according to the configuration of the locking means included in the plunger in the constitution of the present invention
Fig. 5 is a view showing the operation state of the plunger by the locking means in the constitution of the present invention
6A and 6B show the state of use of the polishing apparatus according to the position of the plunger in the constitution of the present invention
7 is a schematic view showing the polishing means in the constitution of the present invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the present invention is provided with a moving carriage 30 provided with a wheel 62 for easy movement.

A polishing disc 11 for polishing the floor E such as the floor of a building, the deck of a ship and a waterproofing agent-applied surface, and a driving motor 12 for driving the polishing disc 11 are provided in front of the moving carriage 30, Is provided on the polishing surface of the polishing pad.

The grinding means 10 may be configured such that one grinding disk 11 is directly connected to the motor shaft 14 of the drive motor 12 so as to be rotatable, A plurality of grinding discs 11 can be mounted by dispersing a plurality of drive shafts.

In addition, a cover body 17 for covering the polishing disk 11 is further included so as to prevent dispersion and diffusion of dust generated during polishing of the polishing disk 11.

A rubber or silicone skirt 18 is further formed at the lower end of the cover body 17 so that the dust is not scattered along the surface of the bottom E along the circumference.

In addition, dust collecting means 20 for sucking and removing dust generated due to the polishing of the polishing disk 11 is provided on the moving carriage 30.

The dust collecting means 20 is constructed of a general vacuum cleaner principle and generates a vacuum suction force by a vacuum motor (not shown) formed therein. The dust collecting means 20 is connected to the cover body 17 through a suction pipe 21, 17 to collect and remove the foamed dust.

Thus, the polishing apparatus 10 and the dust collecting means 20 are assembled on the moving carriage 30 to form the electric polishing apparatus 1 that moves smoothly.

At this time, a push rod 40 having a handle 41 at an end thereof is provided at the rear upper end of the moving carriage 30 so as to allow the operator to easily push the motorized polishing apparatus 1, And is rotatably installed.

An operating portion 80 capable of operating the polishing means 10 and the dust collecting means 20 is provided at one side of the moving truck 30. [

The center of gravity WP of the motorized polishing apparatus 1 thus configured is varied to adjust the pressing force of the polishing disk 11 contacting the bottom E of the polishing means 10, And a position changing means (60) for changing the position of the wheel (62) provided in the front and rear wheels.

As shown in FIG. 3A, the position changing means 60 is installed at both lower ends of the moving carriage 30 as a first embodiment, and has a long hole 65 formed in the horizontal direction, A support plate 64 provided with two or more shaft fixing holes 66 extending in an upward direction of the support plate 64 is provided in the support plate 64. The support plate 64 is formed in a slot 65 formed in the support plate 64, 62 are mounted on the left and right wheels.

The operator grasps the wheel shaft 61 and moves the wheel shaft 61 forward and backward along the slot 65 of the support plate 64 to be positioned at the shaft fixing hole 66, 61 are further formed at the center of the moving carriage 30 in the backward direction.

The worker grasps the pulling handle 63 and pulls or pushes the wheel shaft 61 back and forth along the elongated hole 65 to move the wheel shaft 61 to the shaft fixing hole 66, .

The shaft fixing hole 66 is formed at a predetermined distance along at least two long holes 65 on the upper side of the long hole 65 so that the wheel shaft 61 of the shaft fixing hole 66 can be positioned have.

3B, a supporting plate 64, which is installed at the lower ends of both sides of the moving carriage 30 as a second embodiment of the position changing means 60 and has a long hole 65 formed in the horizontal direction, And a wheel shaft 61 is installed on the long hole 65 formed in the support plate 64 and has wheels 62 at both ends to be rotatable.

At this time, a transfer jig (70) interlocked with any one part of the wheel shaft (61) and forward and backward along the slot (65) of the support plate (64) by the operation of the operation unit do.

Accordingly, the wheel shaft 61 is moved forward and backward along the slot 65 by the transfer jig 70 and is positioned at an arbitrary position.

The conveying jig 70 includes a conveying motor 71 installed at a lower end of the moving carriage 30, a conveying screw 72 connected to the conveying motor 71 for rotational operation, And a feed module 74 connected to the wheel axle 61 to move forward and backward in accordance with rotation of the feed screw 72.

The transfer jig 70 constructed as described above can be easily operated by the operation of the operation unit 80. [

As described above, according to the first and second embodiments, the wheel shaft 61 is inserted into the elongated hole (not shown) by the correlation of the center of gravity WP of the electric grinding apparatus 1 according to the position where the wheel shaft 61 is moved forward and backward 65, the distance from the center of gravity WP is increased so that the pressing force for pressing the bottom E of the polishing disc 11 is increased. On the other hand, when the wheel shaft 61 is moved in the longitudinal direction of the slot 65 The distance from the center of gravity WP is shortened so that the pressing force by which the polishing disk 11 presses the bottom E falls.

4 to 6, the push rod 40 is rotatably coupled to the pivot bracket 31 formed at the rear upper end of the moving carriage 30 by a hinge pin 33 at one end.

At this time, a locking groove 32 formed at an arbitrary interval is formed around the rotation bracket 31, and a locking means 32 is provided to allow the operator to positionally fix the locking bar 32 according to the position of the locking groove 32 (50).

The locking means 50 is provided at one side of the plunger 40 with a lever 51 which is exposed to the operation hole 42 formed as a long hole along the longitudinal direction and is operated by the operator in the forward and backward directions along the operation hole 42 Is formed.

And a rod 52 connected to one end of the lever 51 and forward and backward in the longitudinal direction inside the rod 40. The rod 52 is disposed in the longitudinal direction of the rod 40 A fixing bracket 53 for fixing the rod 52 to the plunger 40 is formed.

At this time, the fixing bracket 53 is fixed to one side of the inside of the plunger 40 by bolting or welding.

The locking bracket 55 includes a locking pin 54 connected to the other end of the rod 52 and inserted into the locking groove 32. The locking bracket 55 has a U- A locking pin 54 is formed through the through-hole formed on both sides.

At this time, a spring 56 is provided between the locking bracket 55 and the fixing bracket 53 to resiliently return the locking bracket 55 to the original position.

4 (a), 5 (b) and 5, when the operator pulls the lever 51 along with the manipulation hole 42, the locking pin 54 is pulled along the slot formed at the end of the push rod 40 Is released from the locking groove 32 formed in the pivotal bracket 31 so that the pivot 40 can be rotated around the hinge pin 33. [

6A, the worker can perform the polishing operation while holding the knob 41 formed on the plunger 40 in a state where the plunger 40 is horizontally installed to the outside of the moving carriage 30, When the push rod 1 is housed, the push rod 40 is rotated forward to be horizontally installed, so that utilization of the space to be accommodated can be increased.

6B, an operator grips the handle 41 in a state in which the plunger 40 is inclined along the locking groove 32 formed upwardly in the above-described locking groove 32 so that the plunger is moved downward The electric grinding apparatus 1 is laid down so that the grinding disk 11 is exposed to the naked eye so that replacement and repair work can be performed.

6C, the worker holds the handle 41 around the pivot pin 37 to lift the wheel 62 away from the floor E, and the wheel 62 can be easily moved back and forth .

7, a hinge bracket 13 having a first hinge hole 15 is formed on both sides of the grinding means 10 so as to protrude upward. On the front side of the moving carriage 30, A support portion 35 having a second hinge hole 36 formed corresponding to the hinge bracket 13 is extended forward and the first hinge hole 15 of the hinge bracket 13 and the support portion 35 The two hinge holes 36 are coupled by the pivot pin 37 so that the polishing disc 11 is always in contact with the bottom E regardless of the inclination of the moving pallet 30 and the bottom E. [

In addition, a lift device may be further provided at the rear lower end of the moving carriage 30 to allow the wheel shaft 61 to smoothly move back and forth along the slot 65 from the ground .

The electropolishing apparatus 1 of the present invention constructed as described above can operate the pressing force of the polishing disc 11 by changing the position of the wheel shaft 61 by the position changing means 60.

Accordingly, when the wheel axle 61 is advanced, it can be used for the paint sweeping work and the cleaning work with a load of 2 to 3 kg transmitted to the bottom E. When the wheel axle 61 is backward, ) Has a load of 30 ~ 40kg and can be used for polishing work such as rust removal, paint removal and polishing work.

According to the present invention configured as described above, it is possible to easily adjust the polishing thickness according to the type and material of the floor through the positional correlation between the center of gravity of the polishing apparatus and the center of the wheel, It is possible to quickly and easily carry out the replacement and maintenance of the polishing pad by laying down the apparatus, thereby facilitating the storage of the pushing rod and allowing the polishing pad to always contact the surface of the floor regardless of the inclination and bend of the floor, There are advantages to be able to.

The terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary terms. It should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Therefore, the configurations shown in the drawings and the embodiments described herein are merely the most preferred embodiments of the present invention, and are not intended to represent all of the technical ideas of the present invention. Therefore, It should be understood that various equivalents and modifications may be present.

1: electric polishing machine 10: polishing machine
11: polishing disc 13: hinge bracket
12: drive motor 20: dust collecting means
30: Moving carriage 31: Rotating bracket
32: locking groove 35:
36: second hinge pin 37: pivot pin
40: pin 41: handle
42: Handle 50: Locking means
51: lever 52: rod
53: locking bracket 54: locking pin
55: locking bracket 56: spring
60: position changing means 61:
62: Wheel 63: Drawer handle
64: support plate 65: long hole
66: shaft fixing hole 70; Conveying jig
80: Operation part E: Floor
WP: Center of gravity

Claims (6)

A grinding means 10 for grinding the bottom E; a dust collecting means 20 for sucking dust generated by the grinding means 10; a grinding means 10 and a dust collecting means 20; A motorized grinding machine (1) comprising a moving carriage (30) including a plunger (40) and an operating portion (80) and polishing the bottom (E)
The center of gravity WP of the electric grinding apparatus 1 is changed by changing the position of the wheel 62 provided at the lower end of the moving truck 30 by forward and backward movement so that the grinding means 10 is moved to the floor E, And a position changing means (60) for adjusting a pressing force to be brought into contact with the polishing pad (10). The method according to claim 1,
The position changing means 60 is installed at both lower ends of the moving carriage 30 and has a long hole 65 formed in the horizontal direction and has two or more shaft fixing holes 66 A support plate 64 extended at intervals;
A wheel shaft 61 axially installed in the slot 65 formed in the support plate 64 and having wheels 62 rotatably installed at both ends thereof;
The operator grips the wheel shaft 61 and moves the wheel shaft 61 so that the wheel shaft 61 is moved forward and backward along the slot 65 of the support plate 64, And a withdrawing handle (63) projecting rearward of the moving carriage (30) at the center of the moving carriage (30). The method according to claim 1,
The position changing means 60 includes a support plate 64 installed at both lower ends of the moving carriage 30 and having a long hole 65 formed in the horizontal direction;
A wheel shaft 61 axially installed in the slot 65 formed in the support plate 64 and having wheels 62 rotatably installed at both ends thereof;
And a transfer jig 70 interlocked with any one part of the wheel shaft 61 and forward and backward along the slot 65 of the support plate 64 by the operation of the operation unit 80 Characterized in that it comprises: The method according to claim 1,
A rotating bracket 31 is formed at the rear upper end of the moving truck 30 so that the end of the push rod 40 is rotatably hinged and a locking groove 32 , And a locking means (50) is built in which the pusher (40) can be fixed at an arbitrary position according to the position of the locking groove (32). 5. The method of claim 4,
The locking means 50 is provided at one side of the plunger 40 with a lever 51 which is exposed to the operation hole 42 formed in the longitudinal direction along the longitudinal direction and is operated by the operator in the forward and backward directions along the operation hole 42 ;
A rod (52) connected to one end of the lever (51) and forward and backward in the longitudinal direction inside the pusher (40);
A fixing bracket 53 for fixing the rod 52 to the plunger 40 so that the rod 52 is operated only in the longitudinal direction inside the plunger 40;
A locking bracket 55 connected to the other end of the rod 52 and including a locking pin 54 inserted into the locking groove 32;
And a spring (56) installed between the locking bracket (55) and the fixing bracket (53) to resiliently return the locking bracket (55) to the original position. The method according to claim 1,
A hinge bracket 13 having a first hinge hole 15 is formed on both sides of the periphery of the grinding means 10 so as to protrude upward and a hinge bracket 13 is provided on the front side of the hinge bracket 13 The first hinge hole 15 of the hinge bracket 13 and the second hinge hole 36 of the support portion 35 are connected to the pivot pin 37) so that the polishing disc (11) is always in contact with the floor (E) irrespective of the inclination of the moving bogie (30) and the floor (E).
KR1020130013783A 2013-02-07 2013-02-07 Motorized abrasive device KR20140100713A (en)

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KR1020130013783A KR20140100713A (en) 2013-02-07 2013-02-07 Motorized abrasive device

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107350930A (en) * 2017-08-08 2017-11-17 格林精密部件(苏州)有限公司 A kind of Novel workpiece sanding apparatus
CN107363680A (en) * 2017-08-08 2017-11-21 格林精密部件(苏州)有限公司 A kind of work-piece polishing device
CN108340262A (en) * 2018-03-01 2018-07-31 安徽理工大学 A kind of steel form sander
KR20190138340A (en) * 2018-06-05 2019-12-13 정상진 Power generator for the selection of agricultural products powered by internal combustion engine
CN113635162A (en) * 2020-04-27 2021-11-12 广东博智林机器人有限公司 Movable dust collector and grinding dust collection device
CN115446679A (en) * 2022-07-27 2022-12-09 马鞍山市申锐建设工程有限公司 Efficient wall surface grinding device for house decoration

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107350930A (en) * 2017-08-08 2017-11-17 格林精密部件(苏州)有限公司 A kind of Novel workpiece sanding apparatus
CN107363680A (en) * 2017-08-08 2017-11-21 格林精密部件(苏州)有限公司 A kind of work-piece polishing device
CN108340262A (en) * 2018-03-01 2018-07-31 安徽理工大学 A kind of steel form sander
KR20190138340A (en) * 2018-06-05 2019-12-13 정상진 Power generator for the selection of agricultural products powered by internal combustion engine
CN113635162A (en) * 2020-04-27 2021-11-12 广东博智林机器人有限公司 Movable dust collector and grinding dust collection device
CN113635162B (en) * 2020-04-27 2022-07-15 广东博智林机器人有限公司 Movable dust collector and grinding dust collection device
CN115446679A (en) * 2022-07-27 2022-12-09 马鞍山市申锐建设工程有限公司 Efficient wall surface grinding device for house decoration

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