JPH105649A - Apparatus for continuously forming pattern coating film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus capable of continuously forming a pattern coating film on the surface of a base material by using a sprinkling roll traversing the flow direction of the base material at a right angle and suppressing the wastefulness of a coating agent in low cost. SOLUTION: This apparatus is equipped with a continuously sent out base material 1, at least one sprinkling roll 2 traversing the flow of the base material 1 at a right angle and sprinkling a coating agent B, the receiving roll 3 formed so as to come into contact with the outer periphery of the sprinkling roll 2 in a freely rotatable manner, a coating agent supply nozzle 4 supplying a coating material B being a raw material to the sprinkling roll 2 and the coating agent receiver 5 provided under the coating agent supply nozzle 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for continuously forming a pattern coating film at low cost.

[0002]

2. Description of the Related Art As a conventional apparatus, Japanese Utility Model Laid-Open No. 2-10
No. 7364, Japanese Utility Model Laid-Open Publication No. 4-61656, and the like.

[0003]

However, the above-mentioned air spray gun can sufficiently atomize a large amount of high-viscosity paint and can obtain a large pattern diameter. However, the vertical axis spraying apparatus shown in FIGS. 3 and 4 could not eliminate the waste of the paint and the base material in the △ W portion. In addition, the spraying device can handle objects to be coated with a circular cross section,
Similarly, there was no technique for producing a large particle size paint piece. Furthermore, the conventional sputter coating apparatus is generally a vertical axis coating apparatus shown in FIGS. 3 and 4, and has a drawback that it is not possible to prevent waste of the paint or increase the speed.

[0004]

SUMMARY OF THE INVENTION In order to eliminate such a drawback, the present invention uses a scatter roll which traverses the flow direction of the substrate at right angles to continuously apply a pattern coating film on the substrate surface. In addition, the present invention provides an apparatus which can be formed at low cost and suppresses waste of paint.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The apparatus according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing an apparatus A according to the present invention, FIG. 2 is a sectional view of the apparatus A taken along the line E, and FIGS.
(D) is an explanatory view showing the order of coating film generation, and FIGS.
(C) is an explanatory view showing an example of spraying when a plurality of spraying rolls 2 are formed, FIGS. 5 (a) and 5 (b) are schematic views showing an apparatus using a conventional spray gun, and FIGS. 6 (a) to 6 (f). 8)
(A) to (f) are explanatory diagrams showing another embodiment of the spraying roll 2, FIGS. 9 (a) to (f) are explanatory diagrams showing another embodiment of the combination of the apparatus A, and FIG. 10 (a). 14 (a) to 14 (e) are explanatory views showing other examples of the substrate 1. FIG.

The apparatus A, as shown in FIG. 1, sprays a large-diameter paint piece 6 on the surface of a substrate 1 and includes a spray roll 2, a receiving roll 3, a paint supply nozzle 4, and a paint receiver 5.

The base material 1 is formed by connecting a long body or a short body, and includes a metal plate, a synthetic resin plate, a synthetic resin foam plate, a curing material made of an inorganic material, a fired material, or a composite plate made of the above combination. And so on. Examples of the metal material include iron, aluminum, copper, stainless steel, and titanium. Examples of the synthetic resin include polyethylene, polypropylene, polystyrene, vinyl chloride resin, styrene resin, methacrylic resin, polyurethane, phenolic resin, and urea resin (urea resin). ), Melamine resin, fluorine resin, silicon resin, fiber reinforced plastic, and the like. The extruded product of vinyl chloride is excellent in productivity, price and performance. The inorganic material is a kind of clay or the like.

The sprinkling roll 2 is disposed above the substrate 1 so as to cross the flow direction B at right angles.
Width W = about 500 to 1250 mm, diameter d = 100 to 1
A metal roll of about 000 mm, a synthetic resin roll, a rubber roll, etc., and a diameter △ d = 1 to 1 with respect to the substrate 1
This is for randomly and randomly spraying paint pieces 6 of about 0 mm. In addition to the case of a raw roll as shown in FIG. 6A, a U groove 9 which is parallel and continuous in the width direction as shown in FIG. Or a hollow portion 2 at the center of the roll as shown in FIG.
A communication hole 10 may be formed radially from a, and the paint pieces 6 oozing out of the communication hole 10 may be sprayed by centrifugal force. The number of rotations of the spraying roll 2 is 200 to 1000 r.
pm, which is appropriately determined by the viscosity of the coating material B.

The receiving roll 3 has substantially the same size as that of the spraying roll 2 and is in contact with the spraying roll 2 and has a paint reservoir 7.
To realize stable spraying.

The paint supply nozzle 4 continuously supplies the paint B from the outside, and the supply amount is appropriately determined according to the wide base material 1. The supply place can be installed above the spraying roll 2 shown in FIG. 1, can be connected to the paint receiver 5, and can also be supplied to the hollow part 2 a at the center of the spraying roll 2.

The paint receiver 5 receives the supplied and overflowing paint B, and functions as a pool when circulating through an external pump.

The coating material B is composed of an organic coating material such as fluorine, acrylic, polyester, modified silicon or an inorganic coating material, and has a viscosity of 10 to 40 seconds (the viscosity is expressed by the time of flowing out of a container having a fixed amount, and is slow. Higher viscosity).

Next, the operation of the apparatus according to the present invention will be described with reference to FIG.
This will be briefly described with reference to FIGS. As shown in FIGS. 3A to 3D, a roll coater,
An undercoat 8 made of a fluororesin paint having a thickness of Δt = 10 to several tens of microns and a viscosity of 10 to 40 seconds by the above-mentioned measuring method is applied by a kind of a spray coater, a curtain flow coater or the like. The uncured undercoat 8 is also sprayed with uncured paint pieces 6 from the spray roll 2, and the sprayed paint pieces 6 fall within the thickness of the undercoat 8 as shown in FIG. Diffusion integrated, no irregularities on the surface. Further, it is crosslinked in the next drying step (not shown) to complete the coating film.

Further, the undercoat 8 and the paint piece 6 will be described. If the viscosity of the paint piece 6 is set slightly lower (for example, 15 seconds) than the viscosity of the undercoat 8 (for example, 30 seconds), the finish is obtained. It will be good. If the setting is reversed, lunar crater-like projections are likely to occur. In addition, it is preferable that the temperature of the raw material of the coating material B is always set to about 30 ° C.

[0015]

[Other Embodiments] The above description is only one embodiment of the apparatus A according to the present invention, and FIGS. 4 (a) to 4 (c) and FIG.
(A)-(f) -FIG. 14 (a)-(e) can be formed. That is, FIGS. 4A to 4C show an example in which a plurality of scatter rolls 2 are installed to enable a multicolor pattern. FIG. In this case, (c) shows a case where two units are juxtaposed and the rotation is reversed. 6 (a) to 6 (f) show another embodiment of the spraying roll 2, and FIG. 6 (a) shows a case where the surface treatment of the roll is omitted to make a raw roll.
(B) to (f) show U-shaped grooves 9 formed in a grid pattern, an annular shape, a staggered shape, a spiral shape, and a partial annular shape on the outer periphery of the roll, and knurled flat convex portions. a) ~
(F) is a view in which the knurl finish of the flat convex portion of the spraying roll 2 in FIG. 6 is omitted.

FIGS. 8A to 8F show another embodiment of the spraying roll 2, wherein FIG. 8A shows a case where U grooves 9 are formed at six locations, and FIG. a) U in the figure
The groove 9 is formed deeply. (C) is a U-shaped groove 9 shown in (a).
Are formed in 12 places, (d) is a view in which fins 11 are formed in 6 places, (e) is a view in which a wide groove 9a is formed, and (f) is a view from the hollow portion 2a to the U groove 9. The communication holes 10 are formed radially.

FIGS. 9 (a) to 9 (f) show another embodiment in the vicinity of the spreading roll 2 and the receiving roll 3 as viewed from the side, and FIG. (B) is a diagram in which a receiving roll 3 is belt-mounted, (c) is a diagram in which a sponge-attached receiving roll 3 and a wiping roll 3a are provided, and (d) is a diagram in which a receiving roll 3 and a wiping roll 3a are provided. (E) shows two receiving rolls 3, and (f) shows a spraying roll 2 and a wiping roll 3a.

FIGS. 10 (a) to 10 (e) to 14 (a) to
(E) shows another embodiment of the base material 1, and FIGS. 10 (a) to (e) show examples of the dry wall material 12 made of a composite plate. Three-stage armored shape,
(D) and (e) show wide shallow grooves formed in the horizontal direction.

FIGS. 11 (a)-(e) -FIG. 13 (a)-
(G) is an example used for the roofing material 13, and FIGS.
As shown in FIG. 2, it can be used as a horizontally long roof material 13a, or as shown in FIG. 13, a short roof material (metal tile) 13b.

FIGS. 14A to 14E show examples of the extruded material 14, FIGS. 14A to 14D show the hollow extruded material 14a, and FIG. 14E shows the dense extruded material 14b.

[0021]

As described above, according to the apparatus according to the present invention, waste of the paint and the substrate can be eliminated as compared with the conventional method. The pattern is not limited to the spotted pattern as in the conventional method, and a pattern continuous in the flow direction such as a brick tone, a wood texture, and the like, and a combination thereof can be freely obtained. Paint particles having a large particle size, which cannot be obtained with a conventional air or airless gun, can be easily generated. Line speed of several meters /
min to 30 to 40 m / min. With a simple device, the operation rate can be improved. A pattern that cannot be formed by the conventional device can be formed, and a new design can be formed. There are features and effects such as.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a pattern coating film continuous forming apparatus according to the present invention.

FIG. 2 is a cross-sectional view of an E-section of the continuous pattern coating film forming apparatus according to the present invention.

FIG. 3 is an explanatory diagram showing an order of forming a coating film using the pattern coating film continuous forming apparatus according to the present invention.

FIG. 4 is an explanatory diagram showing an example in which a plurality of scatter rolls according to the present invention are arranged.

FIG. 5 is a schematic diagram showing an operation when a conventional device is used.

FIG. 6 is a perspective view showing another embodiment of the spraying roll of the pattern coating film continuous forming apparatus according to the present invention.

FIG. 7 is a perspective view showing another embodiment of the spray roll of the pattern coating film continuous forming apparatus according to the present invention.

FIG. 8 is a cross-sectional view showing another embodiment of the spraying roll of the pattern coating continuous forming apparatus according to the present invention.

FIG. 9 is an explanatory view showing another example of the combination in the vicinity of the spraying roll of the apparatus for continuously forming a patterned coating film according to the present invention.

FIG. 10 is a cross-sectional view showing another embodiment of a dry wall material manufactured using the pattern coating continuous forming apparatus according to the present invention.

FIG. 11 is a cross-sectional view showing another embodiment of a roofing material manufactured using the pattern coating continuous forming apparatus according to the present invention.

FIG. 12 is a cross-sectional view showing another embodiment of a roofing material manufactured using the pattern coating continuous forming apparatus according to the present invention.

FIG. 13 is a perspective view showing another embodiment of a roofing material manufactured by using the pattern coating continuous forming apparatus according to the present invention.

FIG. 14 is a cross-sectional view showing another example of an extruded material manufactured using the pattern coating continuous forming apparatus according to the present invention.

[Explanation of symbols]

 Reference Signs List A pattern coating film continuous forming apparatus B paint 1 base material 2 spraying roll 2a hollow part 3 receiving roll 3a wiping roll 4 paint supply nozzle 5 paint receiver 6 paint piece 7 paint reservoir 8 undercoat 9 U groove 9a wide groove 10 communication hole 11 Fin 12 Dry wall material 13 Roof material 13a Horizontal long roof material 13b Short roof material 14 Extruded material 14a Hollow extruded material 14b Solid extruded material

Claims (2)

[Claims] 1. A base material which is continuously fed and at least one or more spray rolls which traverse the flow direction of the base material at right angles and spray the paint, and which are in contact with the outer periphery of the spray roll. A pattern coating film continuous forming apparatus comprising a rotatable receiving roll, a paint supply nozzle for supplying a paint material to the spraying roll, and a paint receiver below the paint supply nozzle. 2. The continuous pattern coating film forming apparatus according to claim 1, wherein a U groove is formed on the outer periphery of the spraying roll, or a communication hole is radially formed from the center of the spreading roll to the outer periphery.