JPH0827698A - Production of mineral fiber plate - Google Patents

Abstract

PURPOSE:To provide a mineral fiber plate having the fragile surface with an uneven pattern having an excellent natural feeling and high decoration. CONSTITUTION:Dense parts 4,4... of plural adjoining or continuous recessed holes 4 are formed on the surface of a mineral fiber plate 3 by plural presses 1 or plural rolls 2 equipped with projection parts 5 while shifting the positions of the recessed holes 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a mineral fiber having excellent sound absorption and design on the surface of a mineral fiber board and capable of forming a concave pattern close to a natural marble pattern or travertine pattern. The present invention relates to a method for patterning a board.

[0002]

2. Description of the Related Art Conventionally, as a method for forming a concave pattern excellent in sound absorption and design on the surface of a mineral fiber board, a plate or roll in which a pin aggregate is planted in a travertine pattern is used. There is a method of pressing on the to pattern, or a method of pressing a plate or roll provided with an uneven pattern on the mineral fiber board (not shown),
The uneven pattern is simple and the surface makeup is poor in nature.

Therefore, in Japanese Patent Publication No. 1-30602, in order to improve this point as much as possible, a pressing step of biting a needle-like material on the surface of a mineral fiber board to form a large number of pin hole patterns, and a peripheral surface. The fiber board is fed into a roll in which needle-like projections are planted, and the surface layer portion of the fiber board is linearly scraped off by the rotation of the roll to form a discontinuous linear concave pattern. This is combined with a rolling process to expose a part of the pin hole pattern on the bottom surface of the linear concave pattern, but it is still insufficient as compared with the natural travertine pattern.

That is, since the mineral fiber board (3) has an extremely weak surface strength, a large number of pin aggregates () are planted on the surface of the roll (2) in order to form a large pattern "concave (7)". If you press 5), the tissue on the surface of the fiberboard (3) will be destroyed, and not only the protruding portion but also the surrounding area will be peeled off and it will become hollow, so if you try to avoid it ,
A large concave pattern could not be formed. Even if it can be done by the conventional method, it is at most about 10 to 20 mm in size. Therefore, the recessed holes (4) could not be densely packed and only simple patterning could be realized. In other words, the surface strength is weak and the adjacent recessed holes (4) have a few meters at most.
Since they can be adjacent to each other only up to about m, there is a drawback in that they cannot express the extreme density of the pattern on the fiberboard (3) and inevitably become an artificial pattern.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of such conventional drawbacks. The problem to be solved by the present invention is that a mineral fiber board having a fragile surface has an excellent natural feeling. It is to be able to form an uneven pattern having higher cosmetic properties.

[0006]

According to the method of the present invention as set forth in claim 1, "a plurality of presses (1) or a plurality of rolls (2) provided with convex portions (5) are provided with concave holes (4)". While displacing the positions, the dense portions (4) (4) of adjacent or continuous recessed holes (4) are formed on the surface of the mineral fiber board (3) ”. To do.

According to this, a plurality of presses (1) or a plurality of rolls (2) provided with protrusions (pins) (5) are used to form protrusions (5) on the surface of the mineral fiber board (3). By gradually shifting the pressing position of, the small concave holes (4) are gradually formed adjacent to or continuous with the surface of the mineral fiber board (3), so the mineral fiber board (3) with extremely weak surface strength is formed. A large number of substantially continuous concave holes (4) and concave holes (4) closely contacted with each other up to about 1 mm are formed without destroying the structure of the surface of (4). As a result, the dense portions (4) (4) of the recessed holes (4), which has been impossible in the past, can be easily obtained.

According to the method of the present invention as set forth in claim 2,
With a plurality of presses (1) or a plurality of rolls (2) provided with (5), while shifting the position of the recessed hole (4), a portion where a plurality of adjacent or continuous recessed holes (4) are dense ( 4) (4) ... the mineral fiber board
Formed on the surface of (3), and thereafter, the recessed hole dense portion (4) (4) formed on the surface of the mineral fiber board (3) is brushed to form the dense portion (4) (4) )… Recessed hole with continuous recesses (4)
(7) is formed ”.

Dense hole dense portion (4) (4) formed as described above
By brushing ... with, for example, a soft brush roll (8), a concave hole (4) that is almost continuous in a mineral fiber board with weak surface strength ... or a concave hole (4) that is close to an interval of 1 mm Are integrated into a large recess (7) with a continuous and complicated shape. Moreover, since the brush (8) is used for brushing, not only the inside of the recess (7) is vertical as shown in FIG. 9 (a) but also the overhang shape and the same as shown in FIG. 9 (b). c) Since it can be expressed by an irregular shape such as the R shape shown in (d), a more natural-looking pattern can be obtained, and it is also effective in terms of sound absorption. Furthermore, when the convex part (5) of the press (1) or roll (2) comes out of the fiber board (3), the burr (protrusion) of the pattern formed around the concave hole (4) is the brush (8).
Since it is scraped off with, a pattern similar to that obtained by smoothing marble with a Fisher pattern into a mirror surface can be obtained. In addition,
If you leave this "kaeri" as it is, when the fiberboard (3) is attached to the ceiling, etc., when you observe the ceiling surface with oblique rays, a shadow will appear on the ceiling surface and it will appear black, and the ceiling surface will appear dirty. Since it looks like, it is not desirable to eliminate "burr", but this can be eliminated by the brush (8).

According to the method of the present invention as set forth in claim 3,
(5) provided a plurality of press (1) or a plurality of rolls (2) while shifting the position of the recessed hole (4), a portion where a plurality of adjacent or continuous recessed holes (4) are dense (4 ) (4)… the mineral fiberboard (3)
On the surface of the mineral fiber board (3), and then, by brushing the concave hole dense parts (4) (4) ... Formed on the surface of the mineral fiber board (3). Concave (7) with continuous recesses (4)
Then, the deposits (6) on the surface of the mineral fiber board (3) are removed ”.

According to this, when the pattern is formed on the surface of the fiber board (3) by the press (1), the roll (2) or the brush (8), the substrate (6) scraped off is the fiber board. (3) Attached to the surface or recess
Although it accumulates in (7), a clearer and more natural pattern can be obtained by removing it with compressed air.

[0012]

The present invention will be described in detail below with reference to the illustrated embodiments. The fiber board (3) used in the present invention is composed of rock wool, slag wool, glass fiber, etc., and its manufacturing method is to form a fiber mat by a known papermaking method, and cut it into a predetermined size. Fiberboard (3). Then this fiberboard
(3) is sanded to adjust the thickness and smooth the surface. Then, a base coat is applied.

Next, a travertine pattern or a marble pattern is formed on the surface of the fiber board (3), which is shown in FIGS. In Figure 1 (a), the press (1) has a number of protrusions.
(5) is planted, and the press (1) is pressed against the surface of the fiber board (3). Of course, as shown in Fig. 1 (a "), many convex parts (5) are planted on the surface of the roll (2) and pin-punched, so that the first concave hole is formed on the surface of the fiberboard (3). You may form (4).

Next, the fiber board (3) is sent to the next step (FIG. 2), and is similarly pinned by the press (1) or roll (2). Here, with respect to some of the many recessed holes (4) formed last time, the recessed holes (4) are formed adjacently or continuously. This is shown in FIG. 2 (b '). As a method of forming the recessed hole (4) after the second time, prepare presses or rolls the number of which is equal to the number of pin hits, and slightly shift the relative positions of the convex portions (5) of these presses or rolls. The method of saving is taken.

As a method for changing the pattern of the press (1) or the roll (2), referring to the position of the convex portion (5) in the previous step, the number of pins and the pushing depth, the convex portion (5) in the next step is referred to. ) Position, number of pins, pushing depth, roll
By changing the diameter of (2), the circumference of the roll (2) is changed, and a method of changing the repeating pattern of the pattern is adopted. The position and the number of pins for the convex portion (5) to be hit on the roll (2) and the press (1) or the thickness and depth of the pin (5) are determined by the pattern to be formed.

In the embodiment shown in FIGS. 1 (a ") to 5 (e"), the roll is
The pin (5) hitting the (2) has the position of the pin (5) changed little by little (up to about 1 mm interval) on the first to fifth rolls, and the rotation speed of each roll (2) is made uniform. The pin hole (4) is slightly shifted in the order of the second, and as shown in the figure so that it is recessed in the surface of the fiberboard (3), and when the final roll (2) is passed, the contour of the pattern Is almost complete. If the thickness and depth of the recesses (4) adjacent to or continuous with each other are changed, a more natural feeling can be obtained.

When the pin punching process is completed in this way,
The product may be used as it is, but a travertine pattern or marble pattern having a more natural feeling can be obtained by passing through the subsequent brushing step. As shown in Fig. 6, the surface of the fiberboard (3) is brushed with a soft brush roll (8), and pin holes (4) that are almost continuously arranged and dense are scraped off, and finally pin holes are formed. (4) Form a recess (7) pattern through. In this embodiment, two brush rolls (8) are arranged side by side for brushing in order to perform the work efficiently. Of course, the number of brushing rolls (8) may be two or more, or one. Alternatively, a flat brush having a soft brush planted therein may be used instead of the roll shape. (Not shown).

Further, in the above-mentioned pin driving operation, when the pin (5) is driven into the surface of the fiber board (3), the portion displaced by the pin (5) moves to the periphery of the recessed hole (4). Then, the circumference of the pin hole (4) is raised. Further, even when the pin (5) comes off, the fibers are entangled with the pin (5), and the periphery of the pin hole (4) is made into an irregular shape. In the brushing step, the swelling and the bounce of the fibers are smoothed, and at the same time, as shown in FIGS. Reveals complex shapes such as hang shapes and R shapes. The result is a travertine or marble pattern that is very close to the natural travertine or marble pattern.

Finally, if necessary, use a compressed air recess (7)
After removing the scraps (6) scraped off during brushing that remain in the concave holes (4), they are cut to the required size. or,
If necessary, the side surface of the fiberboard (3) is subjected to actual processing or groove processing. Finally, a mineral fiber board (3) having a more natural surface pattern can be obtained by single-color coating by spray coating or two-color coating by offset coating.

[0020]

According to the method of the present invention, when a plurality of presses or a plurality of rolls provided with convex portions (pins) are used to press the convex portions on the mineral fiber board substrate to form concave holes, By gradually shifting the pressure of the part, a small recess hole is gradually formed on the surface of the mineral fiber board, so that the surface of the mineral fiber board, which has extremely weak strength, is not destroyed and the recess hole is almost completely removed. A continuous recess or a recess in which recesses are closely contacted with each other up to about 1 mm is formed. Therefore, a large pattern (recess)
It also has the advantage of being able to form a dense and random pattern of depressions and recesses, and to obtain a natural surface pattern similar to that of real marble or travertine. Further, by brushing the formed recesses, the boundary portion of the recessed holes is scraped off to form recesses having substantially continuous recessed holes. Also, 1 mm
Concave holes that are close to each other can be integrated into a large continuous recess. Also, since the brushing is done with a soft brush, not only the inside of the recess is vertical, but also irregular shapes such as overhang shape and R shape can be expressed, a more natural pattern can be obtained, and it is also effective in terms of sound absorption. .
Furthermore, the pattern burr (protrusion) that is created when the protrusions (pins) of the press or roll come out of the fiberboard is scraped off with a brush, so it is similar to the mirror-like smoothing of marble with a Fisher pattern. A pattern can be obtained, and even when it is applied to the ceiling, black shadows due to oblique rays do not appear, resulting in a beautiful finish.

[Brief description of drawings]

FIG. 1A is a front view of the first patterning by a press, and FIG. 1A 'is a partial perspective view showing the first patterning state.
(a ") is a front view of the first patterning with a roll.

FIG. 2 (b) is a front view of the second patterning by a press, (b ′) is a partial perspective view showing the second patterning state,
(b ") is a front view of the second patterning with a roll.

FIG. 3 (c) is a front view of the third patterning by the press, (c ′) is a partial perspective view showing the third patterning state,
(c ") is a front view of the third patterning by a roll.

FIG. 4 (d) is a front view of the fourth patterning by the press, (d ′) is a partial perspective view showing the fourth patterning state,
(d ") is a front view of the fourth patterning by a roll.

FIG. 5 (e) is a front view of the fifth patterning by a press, (e ′) is a partial perspective view showing the fifth patterning state,
(e ") is a front view of the fifth patterning by a roll.

FIG. 6 (f) is a front view when brushing a concave hole formed by a press, (f ′) is a perspective view of a large recess formed by brushing, and (f ″) is formed by a roll. It is a front view at the time of brushing the formed recessed hole.

7 (g) and (g ") are front views of a state in which the surface of the fiber plate after brushing is cleaned with compressed air, and (g ') is a perspective view of the cleaned large recess. .

FIG. 8 is a perspective view of a fiberboard manufactured by the method of the present invention.

9A is a sectional view of a recess having a rectangular cross section, FIG. 9B is a sectional view of a recess having an overhang-shaped eave, and FIGS. 9C and 9D are overhang-shaped eaves on one side. It is sectional drawing of a recessed part.

FIG. 10 (a) is a front view when a conventional roller is used to form a concave hole, and FIG. 10 (b) is a front view when the surface of a fiberboard is scraped off by a roll pin.

[Explanation of symbols]

 (1)… Press (2)… Roll (3)… Fiberboard (4)… Concave hole (5)… Convex section (7)… Concave

Claims (3)

[Claims] 1. A plurality of presses or a plurality of rolls provided with convex portions are formed on the surface of a mineral fiber board while arranging the positions of the recessed holes while arranging a plurality of adjacent or continuous recessed holes densely. A method for producing a mineral fiber board, which is characterized in that 2. A plurality of presses or a plurality of rolls provided with convex portions are formed on the surface of the mineral fiber board while displacing the positions of the recessed holes while forming a plurality of adjacent or continuous recessed holes. After that, a method for producing a mineral fiber board, characterized in that an adjacent or continuous recessed hole forming portion formed on the surface of the mineral fiber board is brushed to form a recess in which the recessed holes are connected. 3. A plurality of presses or a plurality of rolls provided with convex portions are used to position the positions of the recessed holes while forming a dense portion of a plurality of adjacent or continuous recessed holes on the surface of the mineral fiber board. After that, an adjacent or continuous recessed hole forming portion formed on the surface of the mineral fiber board is brushed to form a recess in which the recessed holes are connected, and subsequently, a deposit on the surface of the mineral fiber board. A method for producing a mineral fiber board, which comprises removing