JPH0526167U - Coating equipment for sheet pile joints - Google Patents

Abstract

(57) [Summary] [Purpose] When applying the coating material to the sheet pile joint, it is possible to easily, completely and quickly. [Structure] A coating machine tool for a sheet pile joint having a coating material supply nozzle and a template for evenly distributing the coating material supplied from the nozzle, while supplying the coating material from the nozzle,
The sheet pile joint is painted by moving the nozzle forward along the sheet pile joint.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a coating machine for sheet pile joints (hereinafter simply referred to as coating machine). More specifically, the present invention relates to a coating machine tool capable of easily, completely and quickly coating a coating material on a sheet pile joint (hereinafter simply referred to as a joint).

[0002]

[Prior Art]

 In general, when sheet piles are used for civil engineering works that require high waterproofness, bitumen or water-swellable paint is applied to the joints before construction to improve the waterproofness. However, since these coating materials are relatively high-viscosity viscous fluids and the joint part has a complicated shape, it is necessary to coat the entire joint part evenly when spray painting with a spray gun. Was very difficult. Therefore, the current situation is that these coating materials are unavoidably applied manually by brush coating.

[0003]

[Problems to be solved by the device]

 However, brush painting by hand requires a large amount of manpower and time, which often causes a delay in work. Furthermore, it is very difficult to paint the entire joint with a uniform thickness by painting with a brush, so that water resistance is insufficient in areas where the coating thickness is thin, and conversely in areas where it is too thick. When the sheet pile is driven, the coating film peels off due to the friction between the joints, which both causes water leakage and has the drawback that the original performance of the coating material is not exhibited.

[0004]

[Means for Solving the Problems]

 As a result of intensive studies to eliminate the drawbacks of the conventional coating work, the present inventors have combined and fixed a nozzle for supplying a coating material and a template for evenly distributing the coating material. It was found that the purpose can be achieved by using a coating device that is made up of the following, and the present invention has been completed.

That is, the present invention has a nozzle for supplying the joint material with the coating material fed by the pressure feeder, and a template for evenly distributing the supplied coating material, which is meshed with the joint portion. The present invention relates to a coating device that can paint a joint by moving it along the joint.

Next, a coating machine tool of the present invention will be described with reference to the drawings. In FIG. 1, since the nozzles 2 and 3 are required to have organic solvent resistance and durability, it is desirable to use metal, ceramics or the like as the material, and plastics having excellent organic solvent resistance should also be used. You can The number of nozzles may be single or plural depending on the shape of the joint portion to be coated, but the range of 1 to 5 is desirable. As for the shape of the nozzle, since the coating material is poured into the inside of the joint as well, it is desirable that its diameter is smaller than or almost the same as the opening width of the joint.

The template 1 for evenly smoothing the coating material supplied to the inside and outside of the joint portion is preferably made of metal, ceramics, or the like, and plastic having excellent organic solvent resistance, wood, or the like can also be used. it can. As shown in Fig. 2, Fig. 4, and Fig. 5, the shape of the template 1 is determined according to the difference in the joint portion that comes from the type of sheet pile and the coating range of the coating material. The corresponding portion is processed so that a constant gap is formed between the template 1 and the surface of the joint portion.

The gap is preferably 0.5 mm to 5 mm, and if the gap is less than 0.5 mm, the film thickness of the coating material becomes thin and a sufficient water blocking effect cannot be obtained. Further, if the gap becomes larger than 5 mm, the film thickness of the coating material becomes too thick, and the coating film is likely to peel off due to friction between the joint portions when the sheet pile is driven. Further, the template 1 may be tapered in the thickness direction of the template 1 in order to easily spread the coating material.

[0009]

[Action]

 Furthermore, a method of using the coating device of the present invention will be described with reference to FIG. That is, when the joint portion is coated using this coating device, the coating device is first attached to the joint portion to be coated. At this time, the nozzles 2 and 3 are brought forward with respect to the moving direction of the coating machine tool, and the template 1 is engaged so as to fit the joint portion.

Next, the coating material in the coating material tank 14 is pressure-fed by the coating material pressure-feeding pump 13 through the coating material pressure-feeding hose 12 and the iron pipe 11 to the coating material introduction pipe 5 of the coating machine tool. In this way, the coating material supplied from the nozzles 2 and 3 adheres to the inside and the outside of the joint. Then, with the coating device still engaged with the joint, the nozzles 2 and 3 are moved along the joint with the nozzles 2 and 3 facing forward. As a result, the coating material attached to the inside and outside of the joint is evened out by the template 1 located behind the nozzles 2 and 3, and the gap between the template 1 and the surface of the joint causes the coating material to paint. Spread evenly over the entire area.

In this case, as a method of moving the coating equipment, a person holds the coating equipment by hand or moves it, or moves it by a machine such as a reciplocation or a belt conveyor that horizontally moves. On the contrary, the coating equipment may be fixed and the sheet pile may be moved.

Further, in this case, as a method of feeding the coating material to the coating machine, it is usual to pump the coating material by a pump for pumping the coating material, but an oil jug or the like directly feeds the coating material introduction pipe leading to the nozzle. It may be poured, and in short, any method can be adopted as long as the coating material can be continuously supplied.

[0013]

[Effect of the device]

 The coating machine tool of the present invention is mounted on the joint part, and the coating material is discharged along from the nozzle while moving along the joint part. Can be painted uniformly. In this way, the coating equipment of the present invention improves workability of foundation construction using sheet piles and fully exerts the original water-stopping performance of the coating material, thereby making it possible to perform earth retaining work in excavation and deadlines in rivers and oceans. It is an excellent product that can improve the efficiency and safety of water stop work.

[0014]

[Examples and Comparative Examples]

 Examples and comparative examples of the present invention will be described below with reference to the drawings.

Example 1 A water-swellable coating material was applied to an FSP-III type steel sheet pile by using the coating equipment shown in FIG. In other words, the coating equipment used has two nozzles 2 and 3 made of steel and supplying the coating material to the inside and outside of the joint portion at the same time, but with different mounting angles. The mold plate 1 is made of iron and conforms to the shape inside and outside the joint, and in the coating range, the gap between the mold plate 1 and the surface of the joint is 3 mm. The template 1 is fixed to the metal fitting 4 with bolts so that the template 1 is located at a specific position with respect to the nozzles 2 and 3.

An iron pipe 11 as shown in FIG. 6 is connected to the coating machine tool, and a coating material pressure-feeding pump 13 is attached to the tip of the iron pipe 11 via a coating material pressure-feeding hose 12. It was connected to the coating material tank 14. The coating material is pumped from the coating material tank 14 by the coating material pressure-feeding pump 13, flows in the order of the coating material pressure-feeding hose 12 and the iron pipe 11, and from the nozzles 2 and 3 to the inside and outside of the joint portion at the same time. Supplied.

As a concrete coating method, a coating machine tool is attached so that the template 1 is engaged with the joint portion of the FSP-III type steel sheet pile having a length of 5 m, and the feeding of the coating material is started. When the coating material starts to be supplied from the nozzles 2 and 3 to the joint, hold the iron pipe 11 and continue the coating by moving the nozzles 2 and 3 forward along the joint. When the joint on one side has been painted, the other side is painted in the same way. At this time, the coating amount of the coating material was 200 g per 1 m of the joint portion.

Twenty sheets of steel sheet pile coated with the coating material in this manner were driven into a river on the day after coating, and the state of the water stop was examined as a water stop wall having a height of 4 m and a length of 10 m. The results are shown in Table 1.

Comparative Example 1 A 5 m long FSP-III type steel sheet pile similar to that used in Example 1 was applied with a water-swellable paint by brushing. As for the coating method, first, with an oil jug, 200 g of the coating material per 1 m of the joint portion is poured inside the joint portion. Next, spread this coating material on the coating area inside and outside the joint with a brush. When the joint on one side is finished, the other side is also coated in the same way.

Twenty steel sheet piles coated with the coating material in this manner were driven into a river on the day after coating as in the case of Example 1 to form a water-stop wall having a height of 4 m and a length of 10 m, which was then stopped. The water condition was checked. The results are shown in Table 1.

[Table 1]

As is clear from the results of Table 1, in Example 1 using the coating machine of the present invention, the coating speed of the coating material was about 10 as compared with Comparative Example 1 using brush coating. Twice as fast, the dry film thickness of the coated coating material was 1.2 to 1.5 mm, and there was no uncoated portion. In Comparative Example 1, the coating speed was about the same as in Example 1. The film thickness was 1/10, and the dry film thickness was 0.4 to 2.8 mm, which was a large variation, and moreover, there were uncoated areas. Further, as for the water blocking effect of the water blocking wall, in the case of Example 1, there was no water leakage at all, whereas in Comparative Example 1, water leakage from two locations was observed.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a coating machine tool of the present invention.

FIG. 2 is a front view showing a state where the coating machine tool of the present invention shown in FIG. 1 is attached to a joint portion.

FIG. 3 is a right side view showing a state in which the coating machine tool of the present invention shown in FIG. 1 is attached to a joint portion.

FIG. 4 is a front view of a lightweight steel sheet pile template mounted on a joint portion of steel sheet piles having different shapes.

FIG. 5 is a front view of a linear steel sheet pile template mounted on a joint portion of steel sheet piles having different shapes.

FIG. 6 is a system diagram showing a state of use of the coating machine tool of the present invention.

[Explanation of symbols]

 1 Template 2, 3 Nozzle 4 Metal Fitting 5 Coating Material Introduction Pipe 6 Steel Sheet Pile Joint 7 Lightweight Steel Sheet Pile Template 8 Light Steel Sheet Pile Joint 9 Linear Steel Sheet Pile Template 10 Linear Steel Sheet Pile Joint 11 Iron Pipe 12 Coating material pressure feeding hose 13 Coating material pressure feeding pump 14 Coating material tank

Claims (2)

[Scope of utility model registration request] 1. A coating machine tool for a sheet pile joint, comprising a nozzle for supplying a coating material and a template for evenly distributing the supplied coating material. 2. The coating machine tool for a sheet pile joint according to claim 1, wherein the coating is performed by being attached to the sheet pile joint and moving along the sheet pile joint while supplying the coating material.