JP4272921B2 - Powder spraying device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The invention of this application relates to a powder particle disperser. More specifically, the invention of this application relates to a powder particle dispersion device capable of randomly dispersing powder particles such as sand and aggregate on the surface of a base material of an exterior material.
[0002]
[Prior art]
Various exterior decorations are applied to exterior materials such as outer wall materials and roofing materials, and powders such as sand and aggregate are spread on the surface of the base material to make it look like a natural stone. Yes. As a device used for this purpose, there is known a spraying device for a granular material, which has a concave filling portion on the surface portion, and is provided with a spraying roll for spraying the granular material filled in the filling portion by rotation onto the substrate surface. (For example, refer to Patent Document 1).
[0003]
[Patent Document 1]
JP-A-11-291227 [0004]
[Problems to be solved by the invention]
However, the powder particle dispersion device described in the above-mentioned patent document was developed with the intention of uniformly distributing the powder particles on the surface of the base material, and randomly distribute the powder particles. I can't. Random dispersion of powder particles is effective for realizing an exterior material having a design that is rich in change.
[0005]
The invention of this application has been made in view of such circumstances, and a powder particle spraying device that can randomly spray powder particles such as sand and aggregate on the surface of a base material of an exterior material. Providing is a problem to be solved.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the invention of this application has a powder filling roll having a concave filling portion on the surface portion and spraying powder particles filled in the filling portion by rotation on the surface of the substrate. In the particle dispersion device, a plurality of collection boxes, which are arranged in parallel in the width direction of the dispersion roll and operate independently of each other, are disposed below the spreader roll so as to be movable back and forth. Part of the granular material that falls freely from the filling portion is collected so as not to be dispersed on the surface of the base material.
[0007]
In the invention of this application, the collection box has an opening at the bottom, a collection receiving pan is disposed below the collection box, and the granular material collected by the collection box is discharged to the collection receiving pan through the opening at the bottom. (Claim 2) is provided as an embodiment.
[0008]
Hereinafter, the powder particle dispersion device of the invention of this application will be described in more detail with reference to the drawings.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is an exploded perspective view showing an embodiment of a powder particle spraying device of the invention of this application.
[0010]
For example, as shown in FIG. 1, the powder particle dispersion device of the invention of this application has a concave filling portion (1) on the surface portion, such as sand, aggregate, etc. filled in the filling portion by rotation. The dispersion | distribution roll (3) which spreads a granular material on the surface of a base material (2) is provided. Near the spreading roll (3), there is a scraper (5) that scrapes off the excess of the powder supplied to the surface of the spreading roll (3) from the tank (4) for storing the powder. It can be arranged.
[0011]
In the powder and particle distribution device according to the invention of this application, a plurality of recovery boxes (6) that are arranged in parallel in the width direction of the distribution roll (3) and that operate independently are located below the distribution roll (3). Further, it is arranged so as to be able to advance and retract in the direction of the arrow shown in FIG. In order to make such a collection box (6) advance and retract freely, for example, as shown in FIG. 2, a drive source (7) such as a pneumatic cylinder can be connected to each collection box (6). . A part of the collection box (6) is a spray roll (3) when the granular material filled in the filling part (1) of the spray roll (3) freely falls downward by the rotation of the spray roll (3). Advance below and collect the powder. Thereby, on the surface of the base material (2), as shown in FIG. Thus, in the powder particle dispersion device of the invention of this application, the collection box (6) collects a part of the powder particles that fall freely from the filling portion (1) of the dispersion roll (3). In FIG. 1, the granular material is not uniformly distributed on the surface of the base material (2) conveyed in the direction of the arrow in FIG. It is randomly distributed on the surface of 2). Such a random dispersion of powder particles makes it possible to realize an exterior material having a design that is rich in change.
[0012]
In the powder particle dispersion device of the invention of this application, the recovery box (6) can have an open bottom as shown in FIG. 2, for example. In this case, below the recovery box (6) A collection receiving pan (8) can be arranged on the top. The collection receiving pan (8) can be, for example, an integrated body extending in the width direction of the spray roll (3). As described above, the collection box (6) advances and retreats below the spray roll (3) by, for example, a controlled operation of the drive source (7), and the powder box sprayed from the spray roll (3) when advanced. Collect a portion. When the collection box (6) moves backward, the collected granular material is discharged from the opening (9) on the bottom to the collection pan (8). Thus, the granular material discharged | emitted by the collection | reception receiving pan (8) can be made to transfer to a tank (4), for example, in order to be able to spread again.
[0013]
In addition, as shown in FIG. 1, in order to disperse | distribute the granular material disperse | distributed from a distribution roll (3) uniformly as shown in FIG. (10) can be arranged below the spreading roll (3). The positional relationship with the collection box (6) is preferably such that the mesh (10) is located above the collection box (6) as shown in FIG. This is because the granular material spread on the surface of the substrate (2) is uniformly dispersed.
[0014]
Of course, the invention of this application is not limited by the above embodiments. It goes without saying that various modes are possible for details such as the structure of the spreading roll and the collecting means.
[0015]
【The invention's effect】
As described above in detail, according to the invention of this application, powders such as sand and aggregate can be randomly distributed on the surface of the base material, and an exterior material having a rich design can be realized.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an embodiment of a powder particle spraying device of the invention of this application.
FIG. 2 is a cross-sectional view of a main part of the embodiment shown in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Filling part 2 Base material 3 Spreading roll 4 Tank 5 Scraper 6 Recovery box 7 Drive source 8 Recovery receiving pan 9 Opening 10 Mesh

Claims (2)

In a spraying device for a granular material, which has a concave filling portion on the surface portion and has a spraying roll for spraying the granular material filled in the filling portion by rotation to the surface of the substrate, there is no gap in the width direction of the spraying roll. A collection box, which is arranged in parallel and each of which operates independently, is disposed so as to be able to advance and retreat below the spray roll. With this collection box, a part of the powder particles that fall freely from the filling section of the spray roll is collected. And spraying the granular material so as not to be sprayed on the surface of the substrate. The collection box according to claim 1, wherein a bottom of the collection box is opened, a collection receiving pan is disposed below the collection box, and the particles collected by the collection box are discharged to the collection receiving pan through the opening on the bottom. Spraying equipment.

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