JPH08112743A - Method and device for removing efflorescence or the like in concrete pole - Google Patents

Abstract

PURPOSE: To make polishing capable without scattering dust to fly in a work site by sucking to a dust collector the dust generated at polishing time, by polishing while sucking by the dust collector the dust in a polishing box, while advancing a polisher from an end opening side toward an original opening side. CONSTITUTION: In a condition that an abrasive of a plurality of polishers, juxtaposed in a polishing box 29, is brought into contact with a surface of a concrete pole, an operation is started, simultaneously with driving a rotary device to rotate this pole, so as to polish this pole surface. Dust, generated during polishing work, passing through a duct hose 36 from a hood 35, is sucked to be collected by a dust collector 37. While a polishing device is advanced to an original opening side, a diameter of this pole is gradually enlarged, but in accordance with changing this diameter, the polishing box 29 is lifted by a motor block 23, also to make the abrasive advance polishing the surface of this pole under almost a fixed pressure by action of front/rear spring balances 33, 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for removing dirt and the like generated on the surface of a concrete pole due to adhesion of white smelt or a release agent. More specifically, the present invention relates to a concrete pole manufacturing process. Medium, immediately after demolding after completion of steam curing, primary white sinter may occur on the surface of the concrete pole due to temperature difference between the outside air and the surface temperature of the concrete pole. In addition, the mold release agent or the like applied to the inner surface of the mold at the time of demolding may adhere to the concrete pole and become dirty. The present invention relates to a method and an apparatus for removing white sinter in a concrete pole in which the surface is automatically thinly polished by a machine without manually manipulating a portion that significantly deteriorates the appearance of such a concrete pole.

[0002]

2. Description of the Related Art Conventionally, concrete poles for distribution lines, which are erected on the streets of cities and the like, for lighting, etc. are contaminated by exhaust gas emitted from automobiles and soot emitted from chimneys of factories, There was a phenomenon that the surface of the concrete pole gradually changed its color and the scenery of the townscape deteriorated.

Therefore, recently, in order to be harmonized with the surrounding environment in advance by beautifying the local environment, for example, a Japanese mouse,
We have developed concrete poles that are colored in calm colors such as usmidori, ivory brown, and kogane tea, and concrete poles with a color tone that matches the environment around the installation location are used.

The color pole is manufactured by adding a pigment to a concrete material, removing the product from the product, and then forming a transparent synthetic resin film on the surface of the product with an automatic coating machine to obtain a color pole. There is a method of painting a colored paint on the surface with an automatic coating machine to form a color pole.

However, the color pole manufactured by such a method is not always satisfactory in quality. That is, a soluble salt such as calcium hydroxide, which is a component of cement, leaches on the surface of the concrete pole during the hardening process, and primary white sinter that precipitates on the surface after evaporation of water is generated. Further, after the mold is removed from the mold, the surface of the concrete pole may be contaminated by a release agent, stains, rust, and other harmful substances for coating.

[0006] When such swelling and deposits are attached, the appearance is extremely poor and the coating in the next step is adversely affected. I am manually scraping off with a polisher,
Since the work is manual work, it requires a lot of labor and the mass production system is difficult.

Therefore, Japanese Patent Laid-Open No. 3-149174 proposes a surface polishing apparatus and a surface polishing method for a concrete column, which mechanically performs the above-mentioned shaving operation and automatically performs without labor. This invention, while moving the trolley with the frame standing in the longitudinal direction of the concrete pillar,
After polishing the surface of the concrete pillar linearly with the sandpaper roll attached to the frame, rotate the concrete pillar little by little by the rotating device by the amount corresponding to the width of the sandpaper roll, and repeat the polishing work. There is.

[0008]

However, according to this polishing method, after the entire length of the concrete column is ground by the width of the sandpaper roll, the concrete column is rotated by the amount corresponding to the width of the sandpaper roll. Since the portion adjacent to the polishing-finished portion is polished by the sandpaper roll in the same manner as described above, the work efficiency is very poor, and a great amount of time was spent polishing one concrete column.

Further, there is a problem that dust is scattered during the work of scraping off with a sandpaper roll and the environment of the work place is deteriorated, and that automation is detrimental to the health of workers in the work place. .

The present invention has been researched and developed with the object of solving the problems as described above. The polishing work can be automated to improve the efficiency of the polishing work without any manual labor, and dust generated during polishing can be eliminated. It is an object of the present invention to provide a method and an apparatus for removing white sinter in a concrete pole that can be aspirated by a dust collector and can be polished in a workplace without dust scattering.

[0011]

As means for solving the above problems and achieving the object, in the present invention, a demolded concrete pole is transferred in a direction orthogonal to the length direction of the concrete pole. Place it on the feed cart, convey it to the lower position where the polishing device runs, transfer the concrete pole to the rotating device arranged at that position, and align it with the polishing device waiting in advance at the end end. At the same time, by rotating the rotating device to rotate the concrete pole, the surface of the concrete pole is sharpened by a plurality of polishing machines arranged in parallel in the polishing box, and the polishing device is moved from the end opening side to the front opening side. We have developed and adopted a method for removing white sinter on concrete poles, which is characterized in that the dust in the polishing box is sucked and abraded by a dust collector while advancing.

Further, in the present invention, in the method for removing white sinter or the like in the concrete pole configured as described above, the concrete pole is rotated once in the forward direction by the rotating device, and then is rotated once in the reverse direction. We have developed and adopted a method for removing white sinter on concrete poles that are polished by alternating rotation.

Further, according to the present invention, at least two feed carriages for transferring the demolded concrete poles in a direction orthogonal to the length direction of the concrete poles and the concrete poles transferred from the feed carriages are provided. A plurality of rotating devices that are rotatably supported, a polishing box in which a plurality of polishing machines mounted in parallel are present, a dust collector that suctions and collects dust generated in the polishing box, and a polishing material. We have developed and adopted a descaling device that consists of a balancer that contacts the surface of a concrete pole in a well-balanced manner, an elevator that moves the polishing box up and down, and a traveling carriage that travels inside the frame.

Further, in the present invention, in the device for removing white sinter etc. in the concrete pole constructed as described above,
The polishing machine is 1 for the polished surface of the concrete pole.
A device for removing white sinter on a concrete pole mounted at an inclination angle of 0 to 30 degrees, and a polishing machine is a polishing surface of the concrete pole via a link mechanism that is interlocked by the operation of cylinders provided on both sides of the polishing box. We have developed and adopted a device for removing white sinter on concrete poles that can be freely moved in and out of.

[0015]

According to the present invention, the length direction can be adjusted by driving the vertical feed motor of the feed carriage to rotate the roller when the concrete pole is transferred to the rotating device which is rotatably supported. It can be precisely aligned with the polishing device on standby, and the polishing start position is accurate and reliable.

[0016] At the same time when the polishing material of a plurality of polishing machines arranged in parallel in the polishing box is in contact with the surface of the pole, the rotation device is driven to rotate the pole, and the surface of the pole is removed. Since polishing is performed, a wide range can be polished, polishing efficiency is improved, and dust generated during polishing can be sucked into a dust collector to prevent scattering of dust.

Although the diameter of the pole increases with the progress of the polishing device, the polishing material can polish the surface of the pole with a constant pressing force by means of spring balancers provided at both ends of the elevator and the polishing box.

[0018]

EXAMPLES Examples of the present invention will be described below with reference to the accompanying drawings. 1 is 10 to 17 m in length colored in a soothing basic color such as a Japanese mouse, Usmidori, Ivory brown, and Koge brown. It is a colored concrete pole with a diameter of 140-240 mm and a taper of 1/75 or a taper of 1/180 with a smaller original diameter.

Reference numeral 2 denotes a feed carriage that travels on a rail laid in a direction orthogonal to the length direction of the colored concrete pole 1, and one carriage is provided on each of the front side 1a and the end side 1b of the pole 1. . This feed carriage 2 is provided with a rectangular frame 5 on both side plates 3 and 3 of a base via bearings 4 and 4, a roller 6 for receiving the pole 1 on one side and a horizontal plate 7 on the other side. An air cylinder 8 is disposed below the horizontal plate 7 so that the rectangular frame 5 can be tilted about a pivot 9.

Reference numeral 10 is a traveling motor for traveling the feed carriage 2 provided on one side of the frame 5, and 11 is a main opening side 1a.
With the vertical feed motor provided only in the feed carriage
When the pole 1 is transferred to a rotating device described later, the roller 6 can be rotated to adjust the movement in the length direction, and the end opening end is adjusted to the position of the polishing device described later.

Reference numeral 12 is a rotating device for transferring and rotatably supporting the poles 1 carried on the feed carriage 2 and plurally installed at appropriate intervals in the longitudinal position of the poles 1. . In this rotating device 12, two rotating rollers 12a, 12a made of urethane rubber which are opposed to each other are mounted on a base frame 13 via bearings 14, 14, and an air cylinder 15 is arranged below the base frame 13. The underframe 13 can be raised and lowered.

A plurality of the rotating devices 12 are installed at appropriate intervals in the position of the pole 1 in the longitudinal direction.
As shown in FIGS. 6 and 7, the pedestal includes rotating rollers 12a and 12a.
Among them, one rotating roller 12a is rotationally driven by a motor 16 via a chain 16a,
Other rotating devices may be motorless.

A polishing device 17 reciprocates along the length of the concrete pole 1. The polishing device 17 is
It is composed of a traveling carriage, an elevating device, a polishing device, and a dust collecting device, which will be described later, and the elevating device, the polishing device, and the dust collecting device respectively move as the traveling carriage travels.

In the traveling carriage 18, wheels 18a, 18a are mounted on channel-shaped rails 19a, 19a at both lower ends of a gate-shaped frame 19 disposed in the longitudinal direction above the concrete pole 1, and the wheels 18a, 18a are placed inside the frame 19. To drive. A traveling motor 20 is installed on the upper surface of the bogie frame 18b, and a hanging frame 21 vertically extending downward from a side plate of the bogie frame 18b is integrally connected.

The elevating device 22 moves up and down along the hanging frame 21, and the hook 24 of the elevating machine 23 such as a motor block is locked to the upper frame 22a of the frame body so that the side frames 22b and 22b are secured. Wheels 25, 25, 25, 2 up and down
5 is attached to the elevator 23 such as a motor block.
It moves up and down by winding and unwinding. Also the lower frame 22c
The guide rods 26, 26, 26, 26 are inserted in the front, rear, left and right, and the ends thereof are penetrated through the bottom plate 21a of the hanging frame 21 to be connected to the upper surface of the polishing box described later. Lower frame 22c
And the compression coil springs 27, 27 between the hanging frame 21 and
27, 27 are fitted.

The polishing apparatus 28 comprises a polishing box 29 and a plurality of air polishing machines 30, 30, 30 ... Installed in parallel in the polishing box 29 in the longitudinal direction. Rings 32, 32 are provided on the front and rear portions of the top plate 31 of the polishing box 29, and are connected to the chains 33a, 33a unwound from the spring balancer 33 to maintain the front and rear balance.

The dust collector 34 is provided with a hood 35 provided at a substantially central portion of the top plate 31 of the polishing box 29 and a bottom hose 21 of the hanging frame 21 via a duct hose 36 connected to the hood 35.
The dust collector 37 is mounted on one side of a.

In the polishing machine 30 in the polishing box 29, a circular or quadrangular polishing material 38 made of a material such as paper, cloth, fiber, non-woven fabric, grindstone, and hard sand is mounted on the rotary disk. The abrasive 38 is attached to the surface of the pole 1 at an inclination angle of 10 to 30 degrees, preferably 17 to 20 degrees.

To attach the polishing machines 30 arranged side by side in the polishing box 29, the long levers 3 arranged on both sides of the body of the polishing machine 30 are attached.
An inverted U-shaped metal fitting 39 that holds the polishing machine 30 in the rear part of 9, 39
It is connected to the long levers 39, 39 at a, and the long lever 3
9, 39 have a bearing portion 40 at one end thereof on the rear surface of the polishing box 29.
Is rotatably attached to the shaft 41, and the other end is pivotally attached 43 to one end of the connecting rod 42.

One end of the connecting rod 42 is pivotally attached 46 to one end of a short lever 45 attached to a bearing portion 44 on the front surface of the polishing box 29. A pivot shaft 47 at the other end of the short lever 45 is connected to an air cylinder described later.

Numeral 48 is a fastening ring for preventing the movement of the short lever 45 fitted on the pivot 47, and numeral 49 is a two-piece split fitting inside the fastening ring 48 as shown in FIGS. One fitting piece 49a is provided with vertical pieces 50, 50 standing upright with an appropriate interval, and a semicircular notch 51 into which the pivot 47 is fitted is formed at one side edge. And screw holes 52, 52 are formed in the upper and lower portions thereof, and the push-up body 5 that pushes up the short lever 45 on the lower end side.
3 is integrally formed, and the other fitting piece 49b is
A semi-circular cutout 51 into which the pivot 47 is fitted is formed at one side edge thereof. Then, the fitting pieces 49a and 49b are fitted to the pivot shaft 47 by aligning the semicircular notches 51 and 51 and tightening them with screws 54 and 54.

Reference numeral 55 is an air cylinder provided on each side of the polishing box 29. The tip of a piston rod 56 is connected to a swing lever 58 via a connecting tool 57. The swing lever 58 is centered on a pivot shaft 47. Swings left and right as. The pivot shaft 47 is arranged in the longitudinal direction of the polishing box 29, and the above-mentioned polishing machine 30 is pushed up by the operation of the air cylinder 55.

Reference numeral 59 denotes a movement control panel, which is a device in which the length of the pole 1, the taper, the position of the end opening of the pole 1, the position of the original opening, and the height of the end opening are stored in advance.
Although the pole 1 is described as a colored concrete pole in the above-mentioned embodiment, it is needless to say that the pole 1 can also be used.

A method for removing white sinter and the like by the white sinter removing device thus constructed will be described. The color concrete pole 1 released from the mold is transferred in a direction orthogonal to the length direction of the pole 1. It is received by the rollers 6 and 6 of the feed carriages 2 and 2, and is conveyed to the position of the rotating device 12 arranged below the gate frame 19. Therefore, the vertical feed motor 11 installed on the feed carriage 2 on the source side 1a is driven to align the end of the pole 1 on the end side with the polishing device 17 which is waiting at the end of the end in advance. And transfer to the rotating device 12.

At the same time when the polishing material 38 of the polishing machine 30 is in contact with the upper surface of the pole 1 to start the operation, the rotating device 12
Rotating rollers 12a, 12a of the pole 1 in the forward direction 1
Rotate.

When the polishing is completed after one rotation, as shown in FIG. 12, the air cylinder 55 is actuated to operate the piston rod 56.
Is extended and the swing lever 58 is rotated via the connecting tool 57 to push up the bottom surfaces of the short levers 45, 45 by the push-up body 53 of the one fitting piece 49a fitted to the pivot shaft 47.
Connecting rods 42, 42, long levers 39, 39 for connecting with it
Goes up and the polishing machine 30 separates from the polishing surface of the pole 1. In this state, the polishing device 17 advances toward the front opening side 1a by a length of ⅕ of the distance between the abrasives 38, 38.

Next, when the operation of the air cylinder 55 is released, the short levers 45, 45 are pivoted to the pivot shaft 47 by the own weight of the polishing machine 30.
The lower ends of the long levers 39, 39 are also lowered about the shaft 41 via the connecting rod 42 so that the polishing material 38 of the polishing machine 30 contacts the polishing surface of the pole 1.

Therefore, this time, the rotating rollers 12a, 12a
Polish the pole by rotating it once in the reverse direction. When the polishing is completed, the air cylinder 55 is operated to release the polishing machine 30 upward as described above, and the polishing device 17 advances toward the front opening side 1a by a 1/5 length between the polishing materials 38 and 38. When this polishing operation is repeated four times, the concrete surface between the polishing materials 38, 38 is also polished. Then, it advances to the front opening side 1a at the pitch between the abrasives 38 on both sides. Polishing is performed by sequentially repeating this operating state. Dust generated during the polishing work is sucked and collected by the dust collector 37 from the hood 35 through the duct hose 36.

The diameter of the pole 1 gradually increases as the polishing device 17 advances toward the main opening side 1a. In accordance with the change, the polishing box 29 is raised by the motor block 23 and the front and rear By the action of the spring balancers 33, 33, the polishing material 38 polishes the surface of the pole 1 with a substantially constant pressure, and when it reaches the ground line (a position of a dimension of 1/6 of the total pole length from the main opening), it polishes. The device 17 is stopped, and the rotation of the polishing machine 30 and the suction of the dust collector 37 are stopped.

Therefore, the motor block 23 is operated to raise the elevating device 22 to raise the polishing box 29, and the polishing device 17 is retracted to put it in the standby state at the original position on the trailing end side 1b. After that, the rollers 12a, 12 of the rotating device 12 are
a is lowered, and the finished pole 1 is conveyed to the previous process.

[0041]

According to the method for removing white sinter or the like in the concrete pole of the present invention constructed as described above, the polishing work can be performed automatically without any labor, and the efficiency of the polishing work is further improved and the polishing work is further improved. The dust that is sometimes generated is sucked by the dust collector, so that the dust does not scatter and the working environment is improved, the health of workers is not impaired, and the workability is improved.

Further, since the concrete pole is rotated by alternately rotating in the normal direction and the reverse direction for polishing, the concrete pole can be accurately polished without shifting in the length direction. Furthermore, since the angle between the polishing surface of the concrete pole and the polishing material is inclined, the polishing area is large and the polishing efficiency is good.

Further, according to the present invention, the polishing efficiency is improved because the pole is rotated by the rotating device and the polishing is performed at the same time when the polishing device is running. Further, since the polishing machines arranged in parallel in the polishing box bring the polishing material into contact with the polishing surface of the pole by the operation of the air cylinders provided on both side surfaces of the polishing box, the contact becomes more reliable. Furthermore, since the polishing box is raised by the elevator and spring, even if the pole diameter changes,
The polishing material can polish the surface of the pole with a constant pressing force.

[Brief description of drawings]

FIG. 1 is a simplified front view of the whole of the present invention.

FIG. 2 is a front view of a main part of the present invention.

FIG. 3 is a side view of an essential part of the present invention.

FIG. 4 is a plan view of a feed carriage on the front end side.

5 is a vertical cross-sectional view taken along the line AA of FIG.

FIG. 6 is a plan view of a rotating device.

FIG. 7 is a side view of the rotating device.

FIG. 8 is a partially cutaway front view of the polishing apparatus.

FIG. 9 is a bottom view of the polishing apparatus.

FIG. 10 is a side view of the polishing box showing a state of the cylinder when the polishing material is in contact with the pole.

FIG. 11 is a vertical cross-sectional side view showing a state where the abrasive is in contact with the pole.

FIG. 12 is a side view of the polishing box showing a cylinder state when the polishing material is separated from the pole.

FIG. 13 is a vertical cross-sectional side view showing a state where the abrasive is separated from the pole.

FIG. 14 is a front view of a fitting piece.

FIG. 15 is a side view of one fitting piece.

[Explanation of symbols]

 1 Concrete Pole 2 Feeding Cart 12 Rotating Device 17 Polishing Device 18 Traveling Carriage 22 Elevator 29 Polishing Box 30 Polishing Machine 33 Balancer 37 Dust Collector 55 Air Cylinder

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yomi Koide 5-14-10 Nishitenma, Kita-ku, Osaka City Kinki Concrete Industries Co., Ltd. (72) Inventor Yoshimi Okuda 5-14 Nishitenma, Kita-ku, Osaka No. 10 Inside Kinki Concrete Industry Co., Ltd. (72) Inventor Toshiro Tsutsumi 3-25-29 Takanawa, Minato-ku, Tokyo Inside Nakamichi Machine Industry Co., Ltd.

Claims (5)

[Claims] 1. A demolded concrete pole is placed on a feed carriage that moves in a direction orthogonal to the length direction of the concrete pole, conveyed to a lower position where a polishing device travels, and disposed at that position. The concrete pole is transferred to the rotating device and is aligned with the polishing device that is waiting at the end of the mouth beforehand, and the rotating device is rotated to rotate the concrete pole, and at the same time, it is installed side by side in the polishing box. The concrete is characterized by sharpening the surface of the concrete pole with a plurality of polishing machines, and advancing the polishing device from the end opening side to the original opening side, while aspirating the dust in the polishing box with the dust collector. How to remove white flowers on the pole. 2. The white sinter according to claim 1, wherein the concrete pole is rotated once in a forward direction by a rotating device, then rotated once in a reverse direction, and then alternately rotated forward and backward to perform polishing. Removal method. 3. At least two feed carriages for transferring the demolded concrete poles in a direction orthogonal to the length direction of the concrete poles, and rotatably supporting the concrete poles transferred from the feed carriages. A plurality of rotating devices, a polishing box in which a plurality of polishing machines mounted in parallel are present, a dust collector that suctions and collects dust generated in the polishing box, and an abrasive material on the surface of a concrete pole. Is a balancer for abutting against each other in a well-balanced manner, an elevator for vertically moving a polishing box, and a traveling carriage that travels in a frame. 4. The removing device for white sinter or the like according to claim 3, wherein the polishing machine is mounted at an inclination angle of 10 to 30 degrees with respect to the surface polishing surface of the concrete pole. 5. The removing device for white sinter or the like according to claim 3, wherein the polishing machine can be brought into and out of contact with the polishing surface of the concrete pole through a link mechanism that is interlocked with the operation of cylinders provided on both sides of the polishing box. .