JPH0938596A - Washing device for provisional material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To wash the upper surface of a provisional material uniformly and efficiently without generating washing nonuniformity. SOLUTION: In a device for automatically washing a provisional material which is mounted on a washing conveyer 1 to be transferred, high pressure water ejecting nozzle heads 2A-2E having nozzles 2a-2g for ejecting high pressure water toward the provisional material P on the conveyer 1 are installed on the upper side of the conveyer 1 to be dislocated from each other in the transfer direction and the perpendicular width direction, and high pressure water is ejected from the nozzles 2a-2g with the nozzle heads 2A-2E rotated.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a scaffolding board, a universal board,
The present invention relates to a cleaning device for a building frame such as a scaffolding frame or a construction temporary material such as steel sheet pile.

[0002]

2. Description of the Related Art On the above-mentioned temporary materials, solidified materials such as concrete mortar and earth and sand adhere to the temporary materials at the work site, and these solidified materials must be removed from the temporary materials in order to reuse them. .

The conventional removal of these solidified substances from the temporary material, that is, cleaning, is done mechanically by a scraping rod or a metal brush.

[0004]

According to this conventional apparatus, since it is a mechanical removal method, not only the solidified matter adhered to the surface of the temporary material but also the coated surface or the plated surface of the surface is peeled off. In some cases, temporary materials need to be painted or plated again before reuse.

Therefore, the present invention decides to clean the surface of the temporary material by the fluid pressure, which is the injection pressure of high-pressure water, rather than the mechanical cleaning method. However, when cleaning the surface of the temporary material by the jet pressure of the high-pressure water, a problem is that it is difficult to spray the high-pressure water uniformly on the surface of the temporary material. The present invention aims to solve these problems.

[0006]

In order to solve the above-mentioned problems, in the invention according to claim 1, if it is shown with the reference numerals shown in the embodiment, it is mounted on the cleaning conveyor 1. A device for automatically cleaning the transferred temporary material P, comprising high-pressure water jet nozzle heads 2A to 2E having a plurality of nozzles 2a to 2g for jetting high-pressure water toward the temporary material P on the cleaning conveyor 1. , The cleaning conveyor 1 is disposed above the cleaning conveyor 1 with its transfer direction and the width direction orthogonal to the transfer direction displaced from each other, and the high-pressure water jet nozzle heads 2A to 2E rotate while rotating the nozzles 2a. ~ 2g
It is configured to jet higher pressure water.

According to the second aspect of the present invention, there is provided an apparatus for automatically cleaning the temporary material P mounted on the cleaning conveyer 1 and transferred to the cleaning conveyor 1. A plurality of nozzles 2a to 2g for injecting high-pressure water
The high-pressure water jet nozzle heads 2A to 2E having the above are respectively arranged on the upper side of the cleaning conveyer 1 while being displaced from each other in the transfer direction and the width direction orthogonal to the transfer direction.
High-pressure water jet nozzle heads 2A at both ends in the width direction,
2E is located on the diagonally upper side of the temporary material P, and the temporary material P
The upper surface P1 of each of the nozzles 2a to 2E is jetted from diagonally above the both end portions P2 and both side surfaces P3 of the nozzles 2a to 2E while rotating.
It is configured to inject high-pressure water from g.

Further, in the invention according to claim 3, the high-pressure water jet nozzle 2a is first transferred to the temporary material P mounted on the cleaning conveyor 1 and transferred as shown in FIG. There is no cleaned portion C1 in which the upper surface P of the temporary material P is washed at an appropriate interval in the width direction by spraying high-pressure water at an appropriate interval in the width direction while rotating ~ 2 g, and between the cleaned portions C1 and C1 in the next stage. Uncleaned part C2 and cleaned part C
1, the high-pressure water jet nozzles 2a to 2g are similarly rotated to jet high-pressure water to jet the high-pressure water from the upper surface P1 of the temporary material P to both side surfaces P3 without omission. It is a thing.

Further, in the invention according to claim 4, the transfer speed of the cleaning conveyor 1 is 0.6 to 1.5 m / min, and the water injection pressure from each nozzle 2a to 2g is 900 to 1200k.
The rotation speed of each nozzle 2a to 2g is 40 at gf / cm ^2.
The configuration according to any one of claims 1 to 3 is set at 0 to 1000 times / minute.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view showing an embodiment of the present invention, showing a scaffolding plate P cleaning apparatus which is a kind of temporary material as indicated by an arrow. A solidified material G such as concrete mortar or earth and sand adheres to the surface of the scaffolding plate P, and the solidified material G also adheres to the longitudinal side surface, and is a point that stands out from the outside. Therefore, it is necessary to clean the surface P1 (P2) and the long side surface P3 of the scaffolding plate P.

Explaining the outline of the cleaning device, a scaffolding board P which is a member to be cleaned is placed on the supply conveyor 3, and the scaffolding board P is transferred from this position onto the cleaning conveyor 1 composed of a mesh belt. Machine frame 4 above the cleaning conveyor 1
The high-pressure water jet nozzle heads 2A to 2E are disposed in the above-mentioned. Further, the machine frame 4 has a nozzle head width adjusting handle 5 for adjusting the widthwise intervals of the high-pressure water jet nozzle heads 2A to 2E and a height of the high-pressure water jet nozzle heads 2A to 2E. Nozzle height adjusting handle 6 is provided, a transfer gate of the cleaning conveyor 1 is provided with a restriction gate 7 for restricting the thickness of the temporary material P that can be washed, and a drain tank 8 is provided below the cleaning conveyor 1. And a filter 9 are provided. Further, a drainer blower 10 for removing cleaning water adhering to the surface of the scaffolding plate P passing under the high-pressure water jet nozzle heads 2A to 2E is installed in the machine casing 4. The scaffolding plate P after the cleaning work is transferred to the discharge conveyor 11.

FIG. 2 shows high pressure water jet nozzle heads 2A to 2E used in the present invention. High pressure water jet nozzles 2a to 2g are provided at 60 ° intervals at seven locations in the circumferential direction of the head. Although not shown, the high-pressure water jet nozzle heads 2A to 2E are designed to rotate at high speed as indicated by arrows by a drive source from an electric motor and a transmission mechanism such as a transmission gear that transmits the drive source. The high-pressure water jet nozzle head 2
The number of the heads or nozzles of the nozzles A to 2E or the high-pressure water jet nozzles 2a to 2g is of course not limited, and the number of nozzles may be two or three or more.

FIG. 3 is a view showing an arrangement state of the high-pressure water jet nozzle heads 2A to 2E shown in FIG. 2, which is located above the scaffolding plate P transferred in the arrow direction on the cleaning conveyor 1. As can be seen from the illustrated state, the high-pressure water jet nozzle heads 2A to 2E are displaced from each other in the transfer direction of the scaffolding plate P and the width direction of the scaffolding plate P orthogonal thereto, that is, arranged in a staggered manner. Has been done. For this reason, if the scaffolding plate P is transferred by being mounted on the cleaning conveyor 1 in the direction of the arrow in the figure, during the transfer, first, the high-pressure water jet nozzle heads 2A, 2C, 2E in the previous stage,
The high-pressure water jet nozzles 2a to 2g are rotated to jet high-pressure water at appropriate intervals in the width direction to wash the surface of the scaffolding plate P at appropriate intervals in the width direction to form a cleaned portion C1. The nozzle heads 2B and 2D also cover the unwashed portion C2 between the washed portions C1 and C1 and a part of the washed portion C1 so that the high-pressure water jet nozzles 2a to
High-pressure water is jetted while rotating 2 g, and high-pressure water is jetted all over the surface of the scaffolding plate P.

As shown in FIG. 4, of the high-pressure water jet nozzle heads 2A to 2E, the high-pressure water jet nozzle heads 2A and 2E at both ends in the width direction are located diagonally above both side surfaces of the scaffolding plate P. Then, the fuel is sprayed from diagonally above to both side surfaces P3 of the scaffolding plate P. Because of this
By the high-pressure water jet nozzle heads 2A and 2E at both ends jetting high-pressure water from diagonally above, the high-pressure water is jetted to both end portions P2 and both side faces P3 of the upper surface P1 of the scaffolding plate P, With the conventional mechanical cleaning method, it is impossible to clean both side surfaces P3 of the scaffolding plate P, but both side surfaces P3 can be reliably cleaned, and the high-pressure water is used for the upper surface of the scaffolding plate P. Since both side ends P2 of P1 can be cleaned simultaneously by the high-pressure water jet nozzle heads 2A and 2E, there is an advantage that it is not necessary to provide another high-pressure water jet nozzle head at these portions.

Each high-pressure water jet nozzle head 2A-2
Since E is configured to inject high-pressure water to the scaffolding plate P that linearly moves in the arrow direction from each nozzle 2a to 2g while rotating, the high-pressure water draws a circle as shown in FIG. The scatter plate P is sprayed, and the spray pattern is a kind of surface. For this reason, the high-pressure water can be sprayed uniformly on the scaffolding plate P, and uneven cleaning does not occur.

6 and 7 show another embodiment of the present invention, which has a structure in which a so-called gate-shaped building frame P is washed from above and below. The high-pressure water jet nozzle head 2 in which the nozzles 2a to 2g face the upper and lower surfaces of the building frame P vertically in the sandwich
A to 2E are arranged in a zigzag manner, and the upper and lower surfaces of the building frame P are cleaned at once by these cleaning nozzles. Since this gate-shaped building frame P is made of a round pipe, it is possible to reliably wash not only the upper and lower surfaces of the building frame P but also the side surfaces thereof by injecting high-pressure water from above and below.

As a result of the experiment, the transfer speed of the cleaning conveyor 1 is preferably in the range of 0.6 to 1.5 m / min. At the transfer speed of 0.6 m or less, the cleaning work efficiency is poor and the high pressure water is wasted. It is known that if the transfer speed is 1.5 m or more, the high-pressure water cannot be sufficiently sprayed and the cleaning efficiency is poor. Moreover, each nozzle 2a-
Water injection pressure from 2g is 900-1200kgf / cm
² range is preferable, water injection pressure is 900kgf / cm
^If it is ² or less, a sufficient cleaning effect cannot be obtained, and if it is 1200 kgf / cm ² , the surface of the temporary material P such as a scaffolding plate is likely to have an adverse effect on the coated surface and the plated surface, and the use of high pressure water is not possible. It turns out to be unnecessary and useless. Further, the rotation speed of each nozzle 2a to 2g is preferably in the range of 400 to 1000 times / minute, and when the rotation speed is 400 times / minute or less, the injection pattern for the temporary material P becomes close to a line, and the cleaning is performed. It has been found that unevenness is likely to occur, and that if the rotation speed exceeds 1000 revolutions / minute, the high-pressure water is severely scattered and the cleaning effect is rather reduced.

[0018]

According to the invention of claim 1, a high-pressure water jet nozzle head having a plurality of nozzles for jetting high-pressure water toward the temporary material on the washing conveyor is provided above the washing conveyor. Since the high pressure water jet nozzle heads are arranged so as to be displaced from each other in the transfer direction and the width direction orthogonal to the transfer direction, and each high pressure water jet nozzle head is designed to jet high pressure water from each nozzle, The upper surface can be cleaned uniformly and efficiently without causing cleaning unevenness.

According to the second aspect of the present invention, both side surfaces of the temporary material, which were difficult with the conventional mechanical cleaning device, can be simultaneously cleaned, and both end portions of the upper surface of the temporary material can be simultaneously cleaned. Since it is possible to do so, it is not necessary to wash the both end portions with separate washing devices, and there is an advantage that the washing can be performed more efficiently.

According to the third aspect of the invention, the upper surface of the temporary material can be cleaned uniformly and efficiently without causing cleaning unevenness.

Further, according to the invention of claim 4, the transfer speed of the cleaning conveyor, the water injection pressure from each nozzle, and the rotation speed of each nozzle are used in an optimum state, so that the cleaning work efficiency and the cleaning effect are achieved. Can be fully exerted.

[Brief description of drawings]

FIG. 1 is a front view of a cleaning device for carrying out the present invention.

FIG. 2 is a perspective view of a high-pressure water jet nozzle head that is a main part of the present invention.

FIG. 3 is a plan view of an embodiment of the present invention.

FIG. 4 is a side view of the same.

FIG. 5 is an explanatory diagram for explaining the operation of the high-pressure water jet nozzle head, which is the main part of the present invention.

FIG. 6 is a plan view of another embodiment of the present invention.

FIG. 7 is a side view of the same.

[Explanation of symbols]

 P Temporary material (scaffolding board) P1 Temporary material upper surface P2 Both side edges of the temporary material upper surface P3 Temporary material both side surfaces 1 Cleaning conveyor 2a nozzle 2b nozzle 2c nozzle 2d nozzle 2e nozzle 2f nozzle 2g nozzle 2A high pressure water jet nozzle head 2B High-pressure water jet nozzle head 2C High-pressure water jet nozzle head 2D High-pressure water jet nozzle head 2E High-pressure water jet nozzle head C1 Washed portion C2 Unwashed portion

Claims (4)

[Claims] 1. A device for automatically cleaning temporary materials mounted on and transferred to a cleaning conveyor, the high-pressure water injection nozzle having a plurality of nozzles for injecting high-pressure water toward the temporary materials on the cleaning conveyor. The heads are disposed above the cleaning conveyer and displaced from each other in the transfer direction and in the width direction orthogonal to the transfer direction, and the high-pressure water jet nozzle heads rotate while the high-pressure water is discharged from the nozzles. Cleaning device for temporary materials that is designed to spray. 2. A device for automatically cleaning temporary materials mounted on and transferred to a cleaning conveyor, the high-pressure water injection nozzle having a plurality of nozzles for injecting high-pressure water toward the temporary materials on the cleaning conveyor. The heads are arranged on the upper side of the cleaning conveyer by shifting their positions in the transfer direction and in the width direction orthogonal to the transfer direction, and the high-pressure water jet nozzle heads at both ends in the width direction are side surfaces of the temporary material. It is located diagonally above and sprays diagonally from both sides and both sides of the upper surface of the temporary material. Furthermore, each high-pressure water jet nozzle head rotates to jet high-pressure water from each nozzle. Cleaning equipment for temporary materials. 3. The surface of the temporary material, which is transferred to the temporary material that is loaded on the cleaning conveyor, is sprayed with high-pressure water at appropriate intervals in the width direction while rotating the high-pressure water injection nozzle in the previous stage during the transfer. Is a cleaned part that has been cleaned at appropriate intervals in the width direction, and in the next step, the high-pressure water jet nozzle is rotated while covering the uncleaned part between the cleaned parts and a part of the cleaned part. A temporary material cleaning device that sprays high-pressure water onto all surfaces of the temporary material. 4. The transfer speed of the cleaning conveyor is from 0.6 to 1.
At 5 m / min, the water injection pressure from each nozzle is 900-12
The rotation speed of each nozzle is 400 to 100 kgf / cm ^2.
The temporary material cleaning device according to any one of claims 1 to 3, which is set to 1000 times / minute.