JPH09279842A - Scraping device of metal work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To economize pressure water and to reduce an equipment cost of a scraping treatment and a treatment cost in scraping of a metal work making use of water jet. SOLUTION: First and second scraping machines 16 and 17 are provided on a carrying way 11 for sending a metal work, and a pair of nozzle heads 25, 25 and 40, 40 for jetting pressure water are provided to both scraping machines 16 and 17 respectively in an approachable and separable manner. The second scraping machine 17 is capable of moving back and forth to the first scraping machine 16, and pressure water is economized to make scraping treatment by moving the nozzle heads 25, 25 and 40, 40 in accordance with a plane shape of the metal work.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal work scraper device, and more particularly to a scraper device for removing deposits such as temporary scaffolding construction frames and scaffolding plates used in construction work by a water jet.

[0002]

2. Description of the Related Art Since concrete, paints, etc. adhere to building frames and scaffolding boards for temporary scaffolding used in construction work,
After the used product is collected, the deposits should be removed to prepare for reuse.

Conventionally, as a cleaning device for removing the deposits on the building frame or scaffolding plate as described above, a dresser for turning a large number of striking wheels is arranged and moved on a conveying path for transferring the building frame or scaffolding plate. It is known that a building frame or a scaffolding plate is hit with a hitting wheel to remove and remove the attached matter.

[0004]

By the way, the keren device using the striking wheel hits the steel pipes and the scaffolding plate constituting the building frame, so that noise is generated during the keren work and the striking force is high when the hitting force is high. There is a problem of causing damage to the frame and scaffolding board.

Further, in the case of hitting a ball, the adhered material that has peeled off scatters around and deteriorates the working environment, and in the case of a pipe structure such as a building frame, the hitting ring collides with the entire outer surface of the building frame. It is difficult to do so due to its structure, and there is also a problem that the deposits cannot be completely removed.

Therefore, an object of the present invention is to reduce the noise generated during the work of removing the deposits such as the building frame and the scaffolding plate, not to deteriorate the working environment, and to efficiently remove the deposits on the entire surface. An object of the present invention is to provide a metal work scraper device that can be performed at low cost.

[0007]

In order to solve the above problems, the invention of claim 1 is capable of moving a plurality of nozzle heads for injecting pressurized water in parallel with each other while rotating with respect to a metal work. In this configuration, the work is scraped with pressurized water while moving at least one of the nozzle head and the metal work with respect to the traveling direction of the metal work.

According to a second aspect of the present invention, a pair of nozzle heads for injecting pressure water while swirling with respect to a metal work are arranged so as to move toward and away from each other in a parallel direction, and while swirling similarly. It comprises a second keren machine in which a pair of nozzles for injecting pressured water to a metal work are arranged so as to move toward and away from each other in the parallel direction and integrally move in the parallel direction. It adopts a configuration that allows the aircraft to move relatively closer to and farther from each other.

Here, the nozzle head is provided with a plurality of jet nozzles on the surface facing the workpiece at positions equidistant from the center of rotation, and the nozzle head is rotated to supply pressure water supplied from a high-pressure water supply source from the nozzles. By spraying, the adhered substances are peeled and removed.

When the nozzle head is moved along the shape of the work, the planar shape of the work is input to the storage device in advance, and the nozzle head is moved by an output signal from the device during the cleaning operation.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

First, a building frame, which is one of the workpieces to be subjected to keren treatment, is made of steel pipe and is formed into a generally gate type or torii type.
Different width and height dimensions and different pattern shapes are used, and FIGS. 9 to 11 show examples of building frames with different pattern shapes.

In a building frame 1 shown in FIG. 9, a pair of vertical pipes 2 and 2 parallel to each other are connected at their upper ends by a horizontal bar 3, and reinforcing bars 4 are arranged in a V shape on both lower sides of the horizontal bar 3. The structure is provided.

A building frame 1 shown in FIG. 10 includes vertical pipes 2 on both sides,
The upper ends of 2 are connected by a horizontal bar 3, and reinforcing bars 4 parallel to the vertical pipes 2 are provided on both lower sides of the horizontal bar 3, and an intermediate bar 5 is provided between the adjacent vertical pipes 2 and reinforcing bars 4. It is structured.

The building frame 1 shown in FIG. 11 includes a vertical pipe 2 on both sides,
The upper ends of the horizontal rails 3 are connected by the horizontal rails 3, and the reinforcing rails 4 parallel to the vertical pipes 2 are provided at positions on both sides of the lower portion of the horizontal rail 3, and the middle rail is provided between the adjacent vertical pipes 2 and 2. 5 is provided, and an auxiliary horizontal rail 6 is provided directly below the horizontal rail 3 between the reinforcing rails 4 and 4.

As shown in FIG. 1, the cleaning device for removing deposits on the surface of the vertical frame 1 is constructed in the middle of a conveying path 11 for horizontally supporting the building frame 1 and transferring it in the longitudinal direction. A surface cleaning device 12 for cleaning the upper surface of the frame 1 and a lower surface cleaning device 12 for cleaning the lower surface of the building frame 1 in front of the surface cleaning device 12 in the feeding direction of the building frame 1. Are formed by arranging, and both keren machines 12 and 13 are basically the same structure except that they are arranged upside down. Therefore, only the surface keren machine 12 located above will be described.
The lower part of the scraper machine 13 is attached to the same part and will not be described.

In the conveying path 11, a large number of feed rollers 14 which are forcibly driven are arranged horizontally at a fixed interval, and on the feed roller 14 group, at the front and rear positions of each of the scraper machines 12 and 13,
It is formed by arranging a pinch roller 15 that pushes down the horizontally supported building frame 1, and even if the building frame 1 is of a different type, the center in the width direction thereof matches the center in the width direction of the transport path 11,
While being guided by a suitable guide or the like, the transport path 11 is
The building frame 1 can be fed and stopped.

As shown in FIGS. 1 to 6, the front surface shaving machine 12 and the first shaving machine 16 are arranged on the conveying path 11 so as to straddle the conveying path 11. It is arranged as described above, and is configured by a combination with the second keren machine 17 which is located at the rear of the first frame machine 16 in the transfer direction of the building frame 1.

The first cleaning device 16 is arranged such that the conveyance path 1 is provided between the upper ends of the support walls 18 provided on both sides of the conveyance path 11.
1. A horizontally long fixed frame 19 that crosses over 1 is erected and fixed, and two guide rails 20, 20 are provided in the length direction on the fixed frame 19.
And a screw shaft 21 formed with a male screw in the opposite direction from the central portion located on the center line in the width direction of the transport path 11, and the screw shaft 21 is driven by a motor 22 in the forward and reverse directions.

Two gear boxes 23 and 24 are mounted on the fixed frame 19 so as to be movable along the guide rails 20, 20, and one gear box 23 is one male screw of the screw shaft 21. The other gearbox 24 is screwed to the other male screw, and both gearboxes 23,
The reference numeral 24 moves toward and away from the left and right at a constant speed based on the center of the conveyance path 11 in the width direction by the forward and reverse rotations of the screw shaft 21.

A nozzle head 25, which will be described later, is rotatably attached to the lower surfaces of the tips of the gear boxes 23 and 24 projecting toward the second skeleton machine 17, and the gear boxes 23 and 24 have gears. Through the nozzle head 2
A motor 26 for rotating and driving 5 is installed.

The second skeleton machine 17 includes the support walls 27, 2 on both sides.
A horizontally long movable base 29 between the fixed bases 28 provided on the 7
Is installed along the rails 30 and 30 so as to move toward and away from the first cleaning device 16 by expansion and contraction of the cylinders 31 and 31, and a guide rail 32 provided on the movable table 29 along the length direction, A pair of left and right gear boxes 33, 3 on the 32.
4 and the movable body 35 are movably mounted, a screw shaft 37 is installed between the movable body 35 and a bearing 36 provided at an end of the movable base 29, and the movable body 35 is driven by a motor for driving the screw shaft 37. 38 are provided.

The screw shaft 37 is provided with a male screw in the opposite direction from the central portion, both gear boxes 33 and 34 are screwed and coupled to the respective male screws, and the motor 38 rotates the screw shaft 37 in the normal direction or in the reverse direction to both gear boxes. 33 and 34 are transport paths 1
While approaching or separating left and right at a constant speed in the width direction of 1,
By expanding and contracting a cylinder 39 provided between the movable body 35 and the movable base 29, a screw shaft 37 supported by the movable body 35 is provided.
Moves in the axial direction, which causes both gearboxes 33,
34 moves integrally with the movable table 29 in the longitudinal direction.

The first gear box 33 and the second gear box 34 have a first
Nozzle heads 40 and 40 that are rotatable on the lower surface of the tip end portion that projects toward the scraper machine 16, and the nozzle head 4
Motors 41, 41 for rotating 0, 40 are provided.

As described above, the first scraper machine 16 is arranged at a fixed position on the conveying path 11, and the nozzle heads 25, 25 provided on the gear boxes 23, 24 are based on the widthwise center line of the conveying path 11. As a result, it moves back and forth in synchronization with the left and right.

On the other hand, the nozzle heads 40, 40 of the second cleaning device 17 move toward and away from each other on the conveying path 11 in synchronism with each other in the left-right direction, and move integrally to the left and right and move back and forth relative to the first cleaning device 16. FIG. 3 shows a state in which the four nozzle heads 25, 25, 40, 40 are most closely gathered on the transport path 11, and FIG. 4 shows both nozzle heads in the first cleaning device 16. 25, 25 are separated from each other to the left and right, and both nozzle heads 40, 4 in the second cleaning device 17 are separated.
0 moves forward in the closest state, and four nozzle heads 2
5, 25, 40, and 40 are shown aligned on the same line in the width direction of the transport path 11.

The nozzle heads 25, 25, 40, described above,
As shown in FIGS. 6 and 7, the reference numeral 40 denotes a cylindrical head 43 at the lower end of a vertical axis 42 which is rotatably supported by bearings passing through a gear box in the vertical direction and is driven by a motor through gears.
A plurality of jet nozzles 44 for jetting the pressurized water downward are provided at a position near the outer periphery on the lower surface of the head 43, and the nozzle 44 has a passage provided along the axis of the vertical axis 42. 45 and a distribution passage 46 provided in the head 43
And a rotary joint 47 provided at the upper end of the vertical axis 42
High pressure water is supplied from the pressure water supply source via the and hose 48, and the injected pressure water is swirled by the rotation of the nozzle heads 25 and 40.

Another example of the nozzle heads 25 and 40 shown in FIG. 18 is a vertical axis 42 rotatably supported by a gear box.
A disc-shaped head 43 is provided at the lower end of the nozzle pipe 4, and the nozzle pipe 4 is bent on both sides of the head 43 toward the lower part in an arc shape.
9 and 49 are mounted, a jet nozzle 50 is provided at the tip of both pipes 49 and 49, and a passage 51 provided along the axis of the vertical axis 42 and both nozzle pipes 49 and 49 are attached to the head 4.
3 jetting nozzles 50, 5
It is designed to rotate while injecting pressure water from 0.

The embodiment of the present invention is configured as described above, and a specific method of removing the building frame will be described.

Since there are several types of building frames subject to keren treatment, the planar pattern shape of each building frame is entered in the storage device in advance, and the information of the building frame to be processed is extracted. Supply to the control device. The control device is the transport path 1
In accordance with the pattern shape of the building frame 1 supplied onto the first frame 1, the first and second cleaning machines 16 and 17 and the transport path 11 are controlled. Before the start of skeleton, the nozzle head 25 of the first skeleton machine 16,
No. 25 and the nozzle heads 40 of the second keren machine 17 are in a state of gathering in the central portion in the width direction of the transport path 11, and the building frame 1 supplied on the transport path 11 is sent forward.
The horizontal rails 3 are the nozzle heads 25, 2 of the first kerren machine 16.
When it faces directly below 5, it is detected by a sensor or the like, and the conveyance path 1
Stop 1

9 (A) to 9 (D), the operation of the first and second keren machines 16 and 17 in the keren of the building frame 1 in which the reinforcing bars 4 are arranged in a V shape, that is, each nozzle head 25. Two
5 and 40, 40, and FIG. 9 (A) shows a state in which the building frame 1 is stopped by the cross rail 3 immediately below the nozzle heads 25, 25 of the first shaving machine. As shown in (B), when the nozzle heads 25 and 25 spread and move on the horizontal rail 3 to the left and right, the second cleaning device 17 moves forward and the nozzle heads 40 and 40 face the horizontal rail 3 and expand to the left and right. It opens and stops at the position of the upper ends of the reinforcing bars 4, 4.

When the transport path 11 operates in this state and the building frame 1 is moved forward, the vertical pipes 2 on both sides pass directly under the nozzle heads 25, 25, as shown in FIG. 9C.

Further, by gradually expanding the nozzle heads 40, 40 on both sides, the inclined reinforcing bars 4, 4 pass directly below the nozzle heads 40, 40 and pass through the lower ends of the reinforcing bars 4, 4. Nozzle heads 40, 40 are vertical pipes 2,
2, the vertical pipes 2 and 2 move below the nozzle heads 25, 25 and 40, 40, and the lower ends of the vertical pipes 2 and 2 extend toward these nozzles as shown in FIG. After passing under the head, the surface-side cleaning process is completed, and the nozzle heads 25, 25, 40, 40 move to the collecting position shown in FIG. 9A and return.

The above nozzle heads 25, 25, 40, 4
When 0 is located on each of the constituent pipes of the building frame 1, it is driven by a motor to rotate, and as shown in FIG. 7, jetted pressure water is ejected downward from the jet nozzle 44 on the lower surface to remove deposits on the surface of the pipe. Peel and remove with water pressure.

FIG. 8 shows the relationship between the swirling pressure water and the building frame constituting pipe. The relative movement of the swirling pressure water and the building frame constituting pipe causes the pressure water to draw a spiral shape relatively. The entire surface of the above can be subjected to keren treatment, and the kelen treatment diameter D obtained by swirling the pressure water is set to be larger than the maximum diameter of the pipe constituting the building frame.

As described above, each nozzle head 25, 2
By moving 5, 40, 40 in accordance with the planar shape of the building frame 1, it is possible to clean the surface of the building frame without leaving the entire surface, and at the same time, it is possible to perform the cleansing process with the minimum consumption of pressure water.
At the same time as there is no waste of pressure water, the pressure water supply source can be miniaturized, and equipment costs and treatment costs can be significantly reduced.

FIGS. 10A to 10E show the vertical pipe 2,
2 shows the movement pattern of the nozzle heads 25, 25, 40, 40 for culling the building frame 1 having the reinforcing crosspieces 4 and 4, and FIGS. 11 (A) to 11 (F) show the auxiliary crosspiece 5 2 shows a movement pattern of a nozzle head for carrying out a skeleton treatment on a building frame 1 provided with, and in each of the examples, the nozzle heads 25, 25 in the first skeleton machine skeleton the horizontal rail 3 and the vertical pipes 2, 2 on both sides, and the second skeleton. The nozzle heads 40, 40 of the machine clean the horizontal pipe 3 or the auxiliary horizontal pipe 6 and the vertical pipes 2, 2.

Further, as for the portion of the middle crosspiece 5, the nozzle heads 25, 25 in the first cleaning machine are shown in FIG. 10 (C) or FIG.
As shown in (E), the nozzle heads 25, 25, 40, 40 may be moved by moving inward and then returning to the outside again, and the movement of each of these nozzle heads 25, 25, 40, 40 is based on a command of the pattern shape of the building frame. Automatically.

Further, in each example, when the horizontal rail 3 and the vertical pipes 2 and 2 are simultaneously removed by the nozzle heads 25, 25, 40 and 40 in the first and second keren machines, the feed speed of the heads and Increase the feed speed of the transport path 11,
You may make it possible to aim at shortening of the skeleton processing time.

Further, in the illustrated example, the method of driving the conveying path 11 to move the building frame 1 at the time of the skeletal treatment is shown, but separately from this, the first and second skeletal machines 16 and 17 are connected to the conveying path 11.
Are arranged so as to move at the same time along the building frame transfer direction, and the first and second cleaning devices 16, 17 are moved as a whole while the building frame 1 is stopped at a fixed position. You may comprise so that 25, 40, 40 may be moved along the shape of the building frame 1 and a keren process may be performed.

In FIG. 1, as described above, the building frame 1 whose front surface has been removed by the front surface cleaning device 12 is sent to the lower surface cleaning device 13 by the transport path 11 and the front surface cleaning process described above is performed. Similarly to the above, the cleaning process on the lower surface side is automatically performed.

FIGS. 12 to 17 show different examples of the specific layout of the keren device, and FIGS. 12 and 13 show a supply carrier table 61 and an outlet side on the inlet side of the carrier path 11 for transferring the building frame 1. The take-out transfer tables 62 are installed at right angles, the front surface cleaning device 12 and the lower surface cleaning device 13 are provided in the middle of the transfer path 11, and the building frame combination work table 63 is provided on the output side of the transfer path 11. It is installed. In this case, both keren machines 12 and 13 are in a fixed position.

In this example, the pair of building frames 1 which are turned upside down on the feeding and carrying base 61 are sent to the entrance side of the carrying path 11, and the worker takes out the building frames one by one to keep the direction constant. Meanwhile, the building frames which have been supplied onto the transport path 11 and have been scraped off are assembled again on the table 63 by turning them upside down, and are supplied onto the take-out transfer table 62.

In the example shown in FIG. 14 and FIG. 15, in the substantially same arrangement as described above, two surface cleaning units 12 and 12 and a work reversing device 64 are installed on the conveying path 11 from the front side. The entire surface can be processed only by the keren treatment. In this example, while the work is being inverted, the skelton machines 12 and 12 are configured so that the skeletal processing is performed before and after the shunt.
It is arranged movably along.

In the example shown in FIGS. 16 and 17, in order to make the whole compact, the surface cleaning device 12 is provided on the conveying path 11.
And the work reversing device 64 is installed on the exit side, and the building frame 1 whose one side has been subjected to the kelen treatment by the kelen machine 12 is sent to the reversing device 64 to invert the front and back, and this is returned to the kelen machine 12 again, and the other surface The cleaning device on the side is adapted to be carried out, and the cleaning device 12 is also movable in this example.

FIGS. 19 and 20 show the case where the work to be scraped is the scaffolding plate 7. There are two types of scaffolding plate 7 as wide and narrow as shown in FIG. 20, and the scaffolding plate 7 has different types. Since deposits are generated only on the surface, only the surface needs to be subjected to the keren treatment, and inversion is not necessary.

Therefore, in the case of scaffolding the scaffolding plate 7,
In the layouts shown in FIG. 14 and FIG. 15, the use of the reversing device 64 is omitted, and the surface cleaning device 12 is provided on the transport unit 11.
The layout is provided by arranging 12 and 12 side by side.

FIG. 19 and FIG. 20 (A) show an example in which the wide scaffolding plate 7 is subjected to the skeletal treatment, and the surface skeletal machine 12 located on the upstream side is the nozzle heads of the first and second skeletal machines 16 and 17. 25, 25 and 40, 40 are arranged in four equal parts under the condition that they are accommodated in the width direction of the scaffolding plate 7, and the surface cleaning device located further downstream has the nozzle heads 25, 25, 40, 40 arranged as described above. As a condition of displacing in the width direction by half a pitch,
If the scaffolding plate 7 is continuously moved along the transportation path, the
As shown in (A), the entire surface of the scaffolding plate 7 can be surely subjected to the keeling treatment.

FIG. 20 (B) shows the skeleton treatment of the narrow scaffolding plate 7, in which the nozzle heads 25, 25, 40, 40 of the skeleton machine 12 on the upstream surface and the skeleton machine on the downstream surface are attached to the scaffolding board 7. The nozzle heads on the upstream side and the downstream side are wrapped around each other so that the nozzles are arranged so that they fit within the width.

[0050]

As described above, according to the present invention, a plurality of nozzle heads for ejecting pressure water while swirling are movably arranged in a parallel direction, and at least one of each nozzle head and a metal work is moved. Since the work is cleaned with pressure water, the work can be cleaned with pressure water, the environment of the cleaning process can be improved, and the pressure water is effective for the work by selecting the position of the nozzle head. For example, by eliminating waste of pressure water on a deformed work such as a building frame, it is possible to reduce equipment cost and treatment cost by downsizing the pressure water generation source.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a main part of a keren device.

FIG. 2 is a perspective view showing a surface cleaning device in the above.

FIG. 3 is a plan view showing a state where the above nozzle heads are assembled.

FIG. 4 is a plan view showing a nozzle head expanded state.

FIG. 5 is a vertical sectional front view showing a portion of the second keren machine.

FIG. 6 is a vertical cross-sectional side view of the surface cleaning machine.

FIG. 7 is an enlarged sectional view in which a main part of a nozzle head is cut away.

FIG. 8 is an explanatory diagram showing the relationship between pressure water of the nozzle head and the kelen treatment pipe.

9A to 9D are plan views showing a relationship between a building frame and a nozzle head for carrying out a cleaning process.

10A to 10E are plan views showing a relationship between a building frame and a nozzle head for carrying out a cleaning process on the building frame.

11 (A) to (F) are plan views showing the relationship between a building frame and a nozzle head for cleaning the building frame.

FIG. 12 is a plan view of a first example showing the layout of the keren device.

FIG. 13 is a longitudinal sectional front view of the above.

FIG. 14 is a plan view showing a second layout example.

FIG. 15 is a vertical sectional front view of the above.

FIG. 16 is a plan view showing a third example of the layout.

FIG. 17 is a vertical sectional front view of the same.

FIG. 18 is an enlarged sectional view showing another example of the nozzle head.

FIG. 19 is a plan view showing scaffolding of the scaffolding board.

20A and 20B are plan views showing the positional relationship between the scaffold plate and the nozzle head.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building frame 2 Scaffolding board 11 Conveyance path 12 Front surface cleaning machine 13 Bottom surface cleaning machine 14 Feed roller 16 First cleaning machine 17 Second cleaning machine 25, 40 Nozzle head

Claims (2)

[Claims] 1. A plurality of nozzle heads for ejecting pressure water while swirling with respect to a metal work are movably arranged in a parallel direction, and each nozzle head and the metal work are arranged in a traveling direction of the metal work. A metal work scraping apparatus for scraping the work with pressured water while moving at least one of the above. 2. A first scraper machine in which a pair of nozzle heads for injecting pressured water while swirling with respect to a metal work are arranged so as to move toward and away from each other in a parallel direction, and also with respect to a metal work while swiveling. A pair of nozzles for injecting pressurized water to move toward and away from each other in the parallel direction and integrally move in the parallel direction. The first and second kelen machines are relatively arranged. A scraper device for metal workpieces that is designed to move toward and away from each other.