JPH11179245A - Resin coating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a resin coating device to uniformly apply resin over the whole surface of a coating surface. SOLUTION: In the resin coating device by which either one of a resin discharging part A for discharging resin 2 or a coating surface 1 coated with a resin 2 discharged from the resin discharging part A is moved and the resin 2 discharged from the resin discharging part A is applied on the coating surface 1, a revolving disc 5 for forming the resin 2 fed to the central part into a film form with a centrifugal force due to rotation is provided on the resin discharge part A and also projecting stripes are radially formed on the revolving disc 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin coating apparatus for uniformly coating a resin such as a foamable resin on a coating surface.

[0002]

2. Description of the Related Art Generally, when backing a heat insulating material on the back of a board such as a gypsum board, a foaming resin is applied to the back of the board, and if necessary, is surrounded by a mold and heated and pressed. The foaming resin is foamed. And conventionally,
When applying the resin 2 such as a foaming resin to the application surface 1 such as the back surface of the board 7, the resin is discharged from the discharge port 4 of the jacket 3 such as a mixing jacket as shown in FIG. The coating is performed by moving one of the side and the discharge port 4 side.

[0003]

However, in the above-mentioned conventional example, since the resin 2 is simply discharged from the discharge port 4, the resin application width does not become wider than a predetermined width. Cannot be applied uniformly over the entire surface of
When foaming is used as a heat insulating material, there is a problem that heat insulating performance is not stable.

SUMMARY OF THE INVENTION The present invention has been made in view of the above description, and an object of the present invention is to provide a resin coating apparatus capable of uniformly applying a resin over the entire coating surface.

[0005]

According to a first aspect of the present invention, there is provided a resin coating apparatus for discharging a resin, wherein the resin is discharged from the resin discharging section. The resin 2 discharged from the resin discharge portion A by applying one of the coating surfaces 1 to the application surface 1, the resin 2 supplied to the center portion of the resin discharge portion A is rotated. Rotating disk 5 formed into a membrane by centrifugal force caused by
Are provided, and convex veins 6 are formed radially on the rotating disk 5. The resin 2 supplied to the center of the rotating disk 5 by rotating the rotating disk 5
Is spread in the form of a film by the centrifugal force generated by the rotation of the rotating disk 5 and is guided by the convex vein 6 to drop from the outer periphery of the rotating disk 5 so that the resin 2 is uniformly applied in a spiral shape and the resin 2 is applied uniformly over a wide width, and the resin 2 can be evenly applied to the application surface 1. Further, by adjusting the number of rotations of the rotating disk 5, it is possible to freely adjust the resin application density and the application width applied to the application surface 1.

[0006] The resin coating apparatus according to claim 2 of the present invention comprises:
In Claim 1, the radial convex vein 6 is formed spirally in the rotation direction. Since the convex vein 6 is spiral in the rotation direction, the application amount of the resin applied to the application surface 1 is not uneven, and uniform application is possible. According to a third aspect of the present invention, there is provided the resin coating apparatus according to the first or second aspect, wherein the convex vein 6 has a mountain-shaped cross section. Since the convex vein 6 has a mountain-shaped cross section, the supply of the resin to the application surface 1 is smoothly performed.

[0007] The resin coating apparatus according to claim 4 of the present invention comprises:
In any one of claims 1 to 3, the height of the convex vein 6 is gradually increased from the center of rotation to the outside. Since the height of the convex vein 6 gradually increases toward the outer periphery, the supply of the resin to the application surface 1 is smoothly performed. According to a fifth aspect of the present invention, there is provided a resin coating device according to any one of the first to fourth aspects, wherein the resin 2 applied to the application surface 1 is a foamable resin. Since the foamable resin is uniformly applied to the application surface 1, the foamed resin can be foamed and expanded so that the thickness of the foamed layer formed can be uniform.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An application surface 1 on which a resin 2 is applied by a resin application device of the present invention is a back surface of a board 7 such as a gypsum board. As shown in FIG. 4, a frame portion 8 is integrally provided around the back side of the board 7, and the coating surface 1 on the back side of the board 7 is provided.
A resin 2 such as a foaming resin is applied to the resin, and the resin 2 such as a foaming resin is heated and foamed to fill a portion surrounded by a frame portion 8, and the back surface of the board 1 is filled with a heat insulating material. It has become.

In the resin discharge section A of the resin coating apparatus, a cylindrical body 9 is disposed in the vertical direction on the side of the jacket 3 such as a mixing jacket. It is inserted rotatably. A resin supply path 11 is provided concentrically with the rotating shaft 10 in the cylindrical body 9, and the jacket 3 and the resin supply path 11 are connected to each other by a liquid feed hose 12. The rotating disk 5 is attached to the lower end of the rotating shaft 10 so as to be integral with the rotating shaft 10, and the resin 2 is supplied from the resin supply path 11 onto the rotating disk 5. A pair of convex veins 6 are radially provided on the rotating disk 5. 2 and 3, the convex vein 6 having a rectangular cross section is provided straight in the radial direction of the rotating disk 5.

[0010] In this embodiment, the board 7 is placed on a conveyor 13, and the board 7 is replaced by the board 7 on the conveyor 13.
The resin 2 discharged from the resin discharge portion A is applied to the application surface 1 by moving the resin 2 at a constant speed in the longitudinal direction.
When applying the resin, the resin 2 is supplied from the jacket 3 and the rotating disk 5 is rotated by the rotation of the rotating shaft 10, and the resin 2 supplied from the jacket 3 is supplied from the resin supply path 11 to the rotating disk 5. The resin 2 is spread in the form of a film by the rotation of the rotating disk 5 and is guided by the convex veins 6 so as to be dropped from the outer periphery of the rotating disk 5 so that the resin 2 is evenly distributed in a spiral shape. In some cases, the resin 2 is applied evenly over a wide width, and the resin 2 is
Can be applied evenly. At this time, by adjusting the number of rotations of the rotating disk 5, the resin application density and application width applied to the application surface 1 can be freely adjusted. As described above, the resin 2 such as a foamable resin is evenly applied to the entire surface of the application surface 1 of the board 7.
A heat insulating material is formed on the back surface of the board 7 by setting the whole surface of the upper surface of the portion enclosed by the box 7 in a press device or the like so as to close it with a lid or the like as necessary, and heating and pressing to foam the resin 2. When the heat insulating material is formed in this way, the density of the heat insulating material becomes uniform throughout and the heat insulating performance is stabilized. In addition, the viscosity of the phenol resin as an example of the resin 2 is 800 to 2000 m.
Pa · s. The rotating disk 5 having the structure shown in FIG. 3 has, for example, a diameter a of 65 mm, a width b of the convex vein 6 of 2 mm, and a height c of the convex vein 6.
Is 1 mm, and is rotationally driven at 300 to 1000 rpm.

FIG. 5 shows another example. In the case of this example, the convex vein 6 provided on the upper surface of the rotating disk 5 has a spiral shape in the rotating direction of the rotating disk 5. When the convex veins 6 are spirally formed in the rotation direction of the rotating disk 5 as described above, the flow of the resin 2 can be guided by the convex veins 6 so as not to be uneven, and the amount of the resin applied to the application surface 1 can be applied. Uniform application is possible without causing unevenness. FIG. 6 shows another example. In the case of this example, the convex vein 6 provided on the upper surface of the rotating disk 5 has a mountain-shaped cross section. When the convex veins 6 have a mountain shape in this manner, the resin 2 flows smoothly along the convex veins 6, and the supply of the resin 2 to the application surface 1 is further smoothly performed. FIG. 7 shows another example. In the case of this example, the convex vein 6 provided on the upper surface of the rotating disk 5 has a mountain-like cross section, and the height of the convex vein 6 gradually increases from the inner periphery to the outer periphery. When the convex veins 6 are formed as described above, the resin flows more smoothly along the convex veins 6, and the supply of the resin 2 to the application surface 1 is further smoothed. In the structure shown in FIG. 7, for example, the width d of the convex vein 6 is 10 m.
m, height e is 2 mm, 1000-2000 rpm
Is driven to rotate.

[0012]

According to the present invention, as described above, one of the resin discharge portion for discharging the resin and the application surface to which the resin discharged from the resin discharge portion is applied is moved to discharge the resin from the resin discharge portion. In the case of applying the resin on the application surface, a rotating disk for forming the resin supplied to the center portion thereof into a film shape by centrifugal force due to rotation is provided at the resin discharge portion and radially convex on the rotating disk. Since the pulse was formed, the resin supplied to the center of the rotating disk was spread by the centrifugal force generated by the rotation of the rotating disk, and the resin was guided by the convex pulse by rotating the rotating disk. Is dropped from the outer periphery of the rotating disk, the resin is evenly applied in a spiral shape, and the resin is evenly applied over a wide width.
The resin can be evenly applied to the application surface, and the resin application density and the application width applied to the application surface can be freely adjusted by adjusting the rotation speed of the rotating disk.

Further, the invention of claim 2 of the present invention relates to claim 1
Since the radial convex pulse is formed in a spiral shape in the rotation direction, the application amount of the resin applied to the application surface guided by the spiral convex pulse does not occur, and uniform application is possible. is there. According to a third aspect of the present invention, in the first or second aspect, since the convex vein has a mountain-like cross section, the resin is smoothly supplied to the application surface.

According to a fourth aspect of the present invention, a first aspect is provided.
In any of the third to third aspects, since the height of the convex pulse gradually increases from the center of rotation to the outside, the supply of the resin to the application surface is smoothly performed. According to a fifth aspect of the present invention, in any one of the first to fourth aspects, since the resin applied to the application surface is a foamable resin, the foamable resin is evenly applied to the application surface, The thickness of the foamed layer formed by foaming and expanding this can be made uniform.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the above.

FIG. 3 is a perspective view of the rotating disk according to the first embodiment;

FIG. 4 is a perspective view showing a back surface of the board.

FIG. 5 is a plan view showing another example of the rotating disk of the above.

6A and 6B show another example of the rotating disk of the above, wherein FIG. 6A is a perspective view and FIG. 6B is a sectional view taken along line XX of FIG.

7A and 7B show another example of the rotating disk of the above, wherein FIG. 7A is a perspective view, and FIG. 7B is a sectional view taken along line YY of FIG.

FIG. 8 is a perspective view showing a conventional example.

[Explanation of symbols]

 A resin discharge section 1 coating surface 2 resin 5 rotating disk 6 convex vein

Claims (5)

[Claims] 1. A method according to claim 1, wherein one of a resin discharge portion for discharging the resin and an application surface to which the resin discharged from the resin discharge portion is applied is moved to apply the resin discharged from the resin discharge portion to the application surface. In the resin coating device, the resin discharge section is provided with a rotating disk for forming the resin supplied to the center portion thereof into a film by centrifugal force due to rotation, and radially convex veins are formed on the rotating disk. A resin coating device characterized by the above-mentioned. 2. The resin coating apparatus according to claim 1, wherein the radial convex veins are spirally formed in the rotation direction. 3. The resin coating apparatus according to claim 1, wherein the convex vein has a mountain-shaped cross section. 4. The resin coating apparatus according to claim 1, wherein the height of the convex pulse gradually increases outward from the center of rotation. 5. The resin coating device according to claim 1, wherein the resin applied to the application surface is a foamable resin.