JPH062326B2 - Patterning method on board - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a patterning method for a plate material, which is configured such that unevenness patterning and coating are applied to the surface of the plate material for makeup.

[Background Art] Since the surface condition of rock wool and other plate materials is rough,
The surface is painted to make ceiling boards. And
In addition to painting, the surface of the plate material is provided with a concavo-convex pattern to improve the appearance of the ceiling board. Conventionally, the surface of the plate material 7 is painted and provided with a concavo-convex pattern as shown in FIGS. 5 and 6. Was being carried out. That is, the fifth
As shown in the figure, a natural roll 10 and a reverse roll 2 are arranged above the transport roll 1 with a gap therebetween, the doctor rolls 5 and 11 are brought into close contact with the rolls 2 and 10, and the plate material 7 is transported. The coating material 6 is applied to the entire surface of the plate material 7 by the natural roll 10 and the reverse roll 2 while being conveyed onto the sheet 1. Thereafter, as shown in FIG. 6, a mold 9 having an uneven surface 8 formed on the lower surface of the plate material 7 having the coating material 6 applied to the entire surface is pressed to form an uneven pattern on the surface of the plate material 7. Of. However, in this method, when the die 9 is pressed, the paint 6 scatters from the surface of the plate material 7 and adheres to equipment around the plate material 7 and the like, which causes a problem in continuous production.
In addition, 18 is a scraper.

[Object of the Invention] The present invention has been made in view of the above points, and improves the productivity without causing the paint to scatter from the surface of the plate material when the surface of the plate material is coated and an uneven pattern is formed. It is an object of the present invention to provide a patterning method for a plate material capable of performing the above.

DISCLOSURE OF THE INVENTION That is, according to the patterning method for a plate material of the present invention, the reverse roll 2 which is rotationally driven in the same direction as the rotation direction of the transport roll 1 is disposed above the transport roll 1, and the reverse roll 2 is provided.
End projections 3 are provided on the circumferential surfaces of both ends of the reverse roll 2 over the entire circumference, and a central projection 4 that is long in the axial direction of the reverse roll 2 is provided on the circumferential surface of the reverse roll 2. , 3, and the doctor roll 5 is disposed in the vicinity of the reverse roll 2, and the doctor roll 5 is provided on the outer peripheral surface of the end side protrusion 3 and the center side protrusion 4 of the reverse roll 2. , The coating material 6 is supplied between the reverse roll 2 and the doctor roll 5 to adhere the coating material 6 to the peripheral surface of the reverse roll 2, and the plate material 7 is supplied between the transport roll 1 and the reverse roll 2. The end side projection 3 of the reverse roll 2 is pressed against the side end surface of the plate 7 and the center side projection 4 is pressed against the front and rear end surfaces of the plate 7 on the conveying direction side. Transfer the paint 6 from the reverse roll 2 and then apply the paint 6 to the surface. Uneven surface 8 to surface of the plate material 7
It is characterized in that the die 9 having the above-mentioned structure is pressed, and by projecting the end side protrusion 3 and the center side protrusion 4 on the outer circumference of the reverse roll 2, these protrusions 3, 3 are formed. In 4, the plate material 7 is surrounded by a portion where the paint 6 is not applied.

Hereinafter, the present invention will be described in detail based on examples. As shown in FIG. 1, a natural roll 10 and a reverse roll 2 are rotatably driven above the transport roll 1 with a gap therebetween. Natural roll 10 is transport roll 1
It is driven to rotate in the opposite direction, and a doctor roll 11 is rotatably arranged at a lateral position of the natural roll 10 in close contact with the peripheral surface of the natural roll 10.
Further, the reverse roll 2 is rotationally driven in the same direction as the transport roll 1, and a doctor roll 5 is closely rotatably arranged at a lateral position of the reverse roll 2 in close contact therewith. As shown in FIGS. 3 and 4, both ends of the reverse roll 2 are provided with end-side projections 3, 3 having a slightly larger diameter over the entire circumference. In the central portion, a central portion side protrusion 4 which is long in the axial direction of the reverse roll 2 is provided so as to extend between both end portion side protrusions 3, 3. The doctor roll 5 is adapted to come into contact with the outer peripheral surfaces of the end-side protrusion 3 and the center-side protrusion 4, and the center portion of the reverse roll 2 where the center-side protrusion 4 is not formed. In the above, a slight gap 12 is formed between the doctor roll 5 and the doctor roll 5.

Then, when a plate material 7 such as a rock wool plate is placed on the upper surface of the transport roll 1 and transported, the plate material 7 is supplied between the transport roll 1 and the natural roll 10 and between the transport roll 1 and the reverse roll 2. The coating material 6 is applied to the surface of the plate material 7 by the natural roll 10 and the reverse roll 2. The paint 6 is supplied into the recess 13 formed between the natural roll 10 and the doctor roll 11 and the recess 14 formed between the reverse roll 2 and the doctor roll 5, and first of all, The paint 6 attached to the peripheral surface is transferred to the surface of the plate material 7. Here, a small amount of the coating material 6 is applied to the surface of the plate material 7, and since the coating material 6 is pushed into the plate material 7, there is no problem of scattering of the coating material 6. Next, the paint 6 supplied in the recess 14 formed between the reverse roll 2 and the doctor roll 5 adheres to the peripheral surface of the reverse roll 2 and a large amount of paint 6 is applied thickly on the surface of the plate material 7. Will be transcribed. Here, the width dimension of the plate material 7 is set substantially to the width dimension of the reverse roll 2, and the coating material 6 spreads from the gap 12 formed between the reverse roll 2 and the doctor roll onto the peripheral surface of the reverse roll 2. Since the reverse roll 2 and the doctor roll 5 are in close contact with each other at the both end side protrusions 3 and 3 of the reverse roll 2 which are applied, the paint 6 does not adhere to the both ends of the plate member 7. Space 1 where paint 6 is not applied
5 will be formed along the edges. Further, a central portion side protruding portion 4 is formed on the outer circumference of the reverse roll 2, and the central portion side protruding portion 4 forms a space 16 which is not painted on the plate material 7 and is long in the width direction. Therefore, the length of the plate material 7 is set to be equal to the circumferential length of the reverse roll 2, and the rotation speed of the reverse roll 2 and the feed speed of the plate material 7 are synchronized with each other so that the central portion side protrusion 4 moves toward the plate material 7 in the conveying direction. By arranging the coating material 6 at the front and rear ends thereof, it is possible to form the voids 16 where the paint 6 is not transferred at the front and rear ends of the plate material 7.

Next, the plate material 7 on which the coating material 6 is not applied to the four circumferences in this manner is conveyed to the lower surface of the press machine, and then the mold 9 having the uneven surface 8 formed on the lower surface as shown in FIG. The surface of the plate 7 is transferred with an uneven pattern by pressing the surface of the plate 7. Here, since the coating material 6 is not attached to the periphery of the plate material 7, the coating material 6 does not scatter at the time of pressing, and the surrounding equipment is not polluted, and the process management is easy. It will be.

[Advantages of the Invention] As described above, according to the present invention, the end side projections are provided at both ends of the reverse roll, and the central projection is provided on the circumferential surface of the reverse roll. Position the doctor roll at the same position and bring the doctor roll into contact with the outer peripheral surfaces of the end-side protrusion and the center-side protrusion of the reverse roll, and supply the plate material between the transport roll and the reverse roll to feed the reverse roll. Since the end side protrusion is pressed against the side end surface of the plate material and the center side protrusion is pressed against the front and rear end surfaces on the conveying direction side of the plate material, the paint is transferred from the reverse roll to the surface of the plate material. The paint is to be applied to the surface of the plate except the surroundings.Next, since the mold with the uneven surface formed on the surface of the plate coated with this paint is pressed, The paint applied to the surface of the board is The unevenness pattern can be attached to the plate material without scattering to the surroundings during the absence of the pressure, and the productivity of the plate material can be improved without contaminating surrounding equipment with paint unlike the conventional case. The process management becomes easy.

[Brief description of drawings]

FIG. 1 is a perspective view showing a makeup method according to an embodiment of the present invention, and FIG.
3 (a) and 3 (b) are schematic front views showing the pressing method of the same, and FIG.
(a) and (b) are a front view and a side view of the reverse roll of the same as above, No. 4
The figure shows the front view of the reverse roll and the doctor roll.
FIG. 5 is a perspective view showing a conventional makeup method, and FIGS. 6 (a) and (b).
[Fig. 3] is a schematic front view showing the above-mentioned pressing method. 1 is a transport roll, 2 is a reverse roll, 3 is an end side protrusion, 4 is a center side protrusion, 5 is a doctor roll, 6 is paint, 7 is a plate material, 8 is an uneven surface, and 9 is a mold. .

Claims (1)

[Claims] 1. A reverse roll, which is rotationally driven in the same direction as the rotation direction of the transport roll, is provided above the transport roll, and end side protrusions are provided on the peripheral surfaces of both ends of the reverse roll over the entire circumference. At the same time as projecting, a central-side projecting portion that is long in the axial direction of the reverse roll is projectingly provided between both end-side projecting portions on the circumferential surface of the reverse roll, and a doctor roll is arranged in the vicinity of this reverse roll. The doctor roll is brought into contact with the outer peripheral surface of the end side projection and the central part side projection of the reverse roll, and the paint is supplied between the reverse roll and the doctor roll to adhere the paint to the peripheral surface of the reverse roll and convey it. The plate material is supplied between the roll and the reverse roll to press the end side projections of the reverse roll against the side end surface of the plate material and the center side projections to the front and rear end surfaces of the plate material in the conveying direction. Let it be on the surface of the plate The paint is transferred from Bath roll,
Next, a method of patterning a plate material, which comprises pressing a mold having an uneven surface formed on the surface of the plate material having a paint applied to the surface thereof.