JP2524671B2 - Aston paint sanding machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an Earthton paint sand spreader.

[0002]

2. Description of the Related Art Earthton coating is used for coarse sand with different particle sizes.
By adhering a mixture of fine sand to the outer wall panel, etc., a fine-grained appearance is obtained.

The conventional Earthton coating sand spreader is configured to spray the sand supplied from the hopper onto the work conveyed by the conveyor.

Incidentally, Japanese Utility Model Publication No. 60-36208 discloses a spraying device for spraying wood flakes onto a work.

[0005]

However, in the conventional Earthton coating sand spreader, there is no consideration of classifying and dispersing the mixed sand according to the particle size. For this reason, there arises a problem that fine sand adheres to the surface of the work first, which reduces the adhesion force of the sand to the surface of the work and reduces the service life of the outer wall or the like, or causes uneven appearance.

[0006] Also, even in the one disclosed in Japanese Utility Model Laid-Open No. 60-36208, the wood flakes are merely scattered, and there is no consideration of classification according to the size of the wood flakes.

It is an object of the present invention to classify mixed sand according to particle size in an Earthton coating sand spreader to improve sand adhesion to the surface of a work and appearance.

[0008]

According to the present invention as set forth in claim 1, in an Earthton coating sand spreader for spraying sand supplied from a hopper onto a work conveyed by a conveyer, the lower part of the hopper. Multiple mesh plates with different roughness are arranged so that the mesh plate with a large roughness is located on the upstream side of the conveyor, and the sand supplied from the hopper is
The mesh plate is made to pass from a mesh plate having a small roughness to a mesh plate having a large roughness in order.

The present invention according to claim 2 is the same as the invention according to claim 1, further comprising a mesh plate located on a more downstream side of the conveyer than a mesh plate located on a more upstream side. It is arranged so as to be inclined at the upper stage so as to have a downward slope toward the upstream side.

According to a third aspect of the present invention, in addition to the second aspect of the present invention, the mesh plate positioned on the most upstream side of the conveyor is further positioned downstream in a horizontally arranged state. It is arranged so as to extend below all the mesh plates.

The present invention according to claim 4 provides the invention according to claims 1 to 3.
In any one of the present inventions, the classification plate is vertically provided below the mesh plate at the boundary of the mesh plate.

The present invention according to claim 5 is based on claims 2 to 4.
In any one of the present inventions, further, a classifying plate is erected above the lower end side of the mesh plate in the inclined arrangement state with a space therebetween.

[0013]

According to the present invention, there are the following actions. A plurality of mesh plates with different roughness is placed below the hopper so that the mesh plate with the higher roughness is located on the upstream side of the conveyor, and the sand supplied from the hopper is removed from the mesh plate with the lower roughness. By sequentially passing the mixed sand toward a mesh plate having a large size, it is possible to classify and mix the mixed sand on the surface of the work according to the particle size, first the coarse sand and then the fine sand. As a result, coarse sand adheres to the work surface first, and fine sand adheres around the coarse sand, improving sand adhesion and improving the service life of outer walls, etc., or making the appearance even. Can be improved.

By mixing the mesh plates located on the downstream side of the conveyor with the mesh plates located on the upstream side in an inclined manner so as to form a downward gradient toward the upper side and toward the upstream side, The sand passes through the mesh plate having a smaller roughness on the upper side or passes through without passing through the mesh plate, and the above-mentioned classification and dispersion is performed with a simple structure.

By extending the mesh plate located on the most upstream side of the conveyor in a horizontal arrangement state to extend below all other mesh plates located on the further downstream side,
The natural falling speed of the sand that has passed through the mesh plate on the downstream side and is falling can be relaxed by the collision with the mesh plate on the most upstream side, and the sand can be reliably and stably attached without bouncing from the work surface.

Below the mesh plate, a classifying plate is hung on the boundary of the mesh plate, so that the sand having a certain particle size range that has permeated each mesh plate falls on the surface of the work and is adjacent to another mesh plate. The mixture is prevented from being mixed with sand that has passed through the mesh plate and having a different particle size range and falling (see FIG. 3), and the above-mentioned classification degree of the sand to be attached to the work surface is improved.

By vertically arranging the classifying plate above the lower end side of the mesh plate in the inclined arrangement state with a space therebetween,
Sand falling on the upper surface of the mesh plate in the inclined arrangement state is once received by this classification plate, and the mesh plate suitable for the sand can be transmitted (see FIG. 2).
Improves the above-mentioned classification degree of sand that adheres to the work surface.

[0018]

1 is a schematic diagram showing a first embodiment, FIG. 2 is a schematic diagram showing an upper classifying plate, FIG. 3 is a schematic diagram showing a lower classifying plate, and FIG.
Is a schematic diagram showing the second embodiment, and FIG. 5 is a process drawing of Earthton coating.

Earthton coating is as shown in FIG.
A step of undercoating an acrylic emulsion-based paint or the like on the work surface such as an outer wall panel, (2) a drying step, (3) a step of applying a main agent such as an acrylic emulsion-based paint for sand fixing, (4) a sand sprinkling step, (5) Sand holding process for sand fixing,
(6) Drying process, (7) Non-sand removal process to remove unadhered sand, (8) Process of overcoating acrylic emulsion transparent paint to ensure sand fixation, (9) Drying process Will be done at.

(Embodiment 1) (See FIGS. 1 to 3) The Arston coating sand spreader 10 is a mixed sand (white granule (coarse sand) 2: off-uniformity meter sand (fine sand)) supplied from a hopper 11.
1) is sprinkled on the work 1 conveyed by the conveyor 12. The conveyance speed of the work 1 is 12 m / min, for example.

A sand supply rotor 13 and a clearance adjusting plate 14 are provided at the outlet of the hopper 11 so that the amount of sand sprayed can be adjusted.

Below the hopper 11, there are first
-Fifth five mesh plates 15A to 15E are arranged such that the mesh plate having a large roughness (15E has a maximum roughness and 15A has a minimum roughness) is positioned on the upstream side of the conveyor 12. Then, the sand supplied from the hopper 11
The mesh plate 15A having a small roughness is sequentially passed toward the mesh plate 15E having a large roughness.

At this time, each of the first to third mesh plates 15A to 15C located on the downstream side of the conveyor 12 is placed above and further upstream of the mesh plate located on the upstream side. It is inclined to form a downward slope toward. Fourth and fifth mesh plates 15D, 1
5E is horizontally arranged.

The fifth mesh plate 15E located on the most upstream side of the conveyor 12 extends horizontally below all the other mesh plates 15A to 15D located on the further downstream side. .

Further, below the mesh plates 15A to 15E, at the boundaries of the mesh plates, the first to sixth lower classification plates 1 are provided.
6A to 16F are provided vertically.

Further, each mesh plate 15A in the inclined arrangement state
First to third upper classifying plates 17A to 17C are erected on the upper side of the lower end side of to 15C with a space therebetween.

Further, the first to fifth mesh plates 15A-1
A vibrator 18 is attached to an outer frame (not shown) supporting 5E. The vibrator 18 applies vibration to each of the mesh plates 15A to 15E and prevents clogging due to sand.

In the Earthton coating sand spreader 10, the roughness of the mesh plates is 1.5 mm for the first mesh plate 15A, 2.0 mm for the second mesh plate 15B, and 3 mm for the third mesh plate 15C.
2.5 mm, the fourth mesh plate 15D is 3.5 mm, and the fifth mesh plate 15E is 5.0 mm.

Further, the first to third mesh plates 15A-1
The inclination angle of 5C is 35 ± 5 degrees.

Further, the first to sixth lower classifying plates 16A to 16
The distance between the lower end of F and the upper surface of the conveyor 12 is 35 mm or more, and the distance between the lower end of the first to third upper classifying plates 17A to 17C and the mesh plates 15A to 15C is 10 to 15 mm. is there.

The set distance X made by the upper classifying plates 17A to 17C with respect to the lower ends of the corresponding mesh plates 15A to 15C is X ≦ 1 when the length of the mesh plates 15A to 15C is L. / 2L (see FIG. 2 (A)).

The operation of this embodiment will be described below. Below the hopper 11, a plurality of mesh plates 1 having different roughnesses
5A to 15E, the mesh plate with a large roughness is the conveyor 1
2 is arranged so as to be located on the more upstream side, and the sand supplied from the hopper 11 is sequentially passed from the mesh plate 15E having a small roughness to the mesh plate 15A having a large roughness, so that the surface of the work 1 is It is possible to classify and mix the mixed sand according to the particle size, the coarse sand first, and the fine sand later.
As a result, coarse sand adheres to the surface of the work 1 first, and fine sand adheres around the coarse sand to improve the sand adhering power to improve the service life of the outer wall or the like, or to provide a uniform appearance. Can be improved.

By arranging the mesh plate located on the more downstream side of the conveyor 12 with respect to the mesh plate located on the more upstream side so as to incline so as to have a downward slope toward the upstream side, The mixed sand passes through the mesh plate having a lower roughness on the upper stage side or passes through without passing through the mesh plate, and the above-mentioned classification and dispersion is performed with a simple structure.

The mesh plate 15E located on the most upstream side of the conveyor 12 is horizontally arranged to extend below all the other mesh plates 15A to 15D located on the further downstream side. Mesh plate 15A ~
The natural falling speed of the sand that has passed through 15D and is falling is relaxed by the collision with the mesh plate 15E on the most upstream side, and the sand can be reliably and stably attached without bouncing from the surface of the work 1.

Below the mesh plates 15A to 15E and at the boundaries of the mesh plates 15A to 15E, the lower classification plates 16A to 16A to
By making 16F hang vertically, each mesh plate 15A
It is possible to prevent the sand having a certain particle size range that has passed through 15E from being mixed with the sand having a different particle size range that has passed through another adjacent mesh plate and dropping in the process of falling onto the surface of the work 1 (see FIG. 3).
), Improve the above-mentioned classification degree of the sand that adheres to the surface of the work 1.

Mesh plates 15A to 15 in an inclined arrangement state
Upper classifying plates 17A to 17A above the lower end side of C via a space.
By standing 7C, the sand rolling on the upper surface of the mesh plates 15A to 15C in the inclined arrangement state is once received by the upper classifying plates 17A to 17C, and the mesh plate suitable for the sand is transmitted. Differently (see FIG. 2), the above-mentioned classification degree of the sand that adheres to the surface of the work 1 is improved.

(Second Embodiment) (See FIG. 4) The point that the earth blasting sand spreader 20 is substantially different from the sand spreader 10 is that it comprises lower classifying plates 16A to 16F and upper classifying plates 17A to 17C. I didn't do it. In the sand spreader 20, the first to fourth mesh plates 15A to 15D are used.
Was inclined and only the fifth mesh plate 15E was horizontally arranged. An outer frame 21 supports the mesh plates 15A to 15D.

[0038]

As described above, according to the present invention, it is possible to improve the adhesion of sand to the surface of the work and the appearance by classifying the mixed sand according to the particle size in the Earthton coating sand spreader.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a first embodiment.

FIG. 2 is a schematic diagram showing an upper classification plate.

FIG. 3 is a schematic diagram showing a lower classification plate.

FIG. 4 is a schematic diagram showing a second embodiment.

FIG. 5 is a process drawing of Earthton coating.

[Explanation of symbols]

 1 Work 10 Aston Paint Sanding Machine 11 Hopper 12 Conveyor 15A to 15E Mesh Plate 16A to 16F Lower Classification Plate 17A to 17C Upper Classification Plate

Claims (5)

(57) [Claims] 1. In an Earthton coating sand spreader for spraying sand supplied from a hopper onto a work conveyed by a conveyor, a plurality of mesh plates having different roughness are provided below the hopper. Arthton is characterized in that the large mesh plate is arranged so as to be located on the upstream side of the conveyor, and the sand supplied from the hopper is sequentially passed from the mesh plate having the small roughness to the mesh plate having the large roughness. Painting sand spreader. 2. The mesh plate located on the downstream side of the conveyor is arranged so as to be inclined to the upper side of the mesh plate located on the upstream side so as to have a downward slope toward the upstream side. 2. The Earthton coating sand spreader according to claim 1. 3. The mesh plate located on the most upstream side of the conveyor is horizontally arranged and extends below all other mesh plates located on the further downstream side.
Earthton paint sanding machine described. 4. The Earthton coating sand spreader according to claim 1, wherein a classification plate is vertically provided below the mesh plate and at a boundary of the mesh plate. 5. The Earthton coating sand spreader according to any one of claims 2 to 4, wherein a classification plate is provided upright above the lower end side of the mesh plate in the inclined arrangement state with a space therebetween.