JPH0796400A - Production of building board - Google Patents

Abstract

PURPOSE:To produce a building board which can be used a raw material most effectively, whose workability is remarkably excellent, and which can be made into an enclosing body with remarkably excellent dynamic strength after being worked. CONSTITUTION:A main sheet forming part Po1 and on that both sides, vertical like forming parts Po3, Po3 are formed on a sheet Po to be formed. Next, a circular arc like bent corner part forming roll consisting of an outer roll part 24 forming a formed bulging streak 24a1 along the forming circumferential side surface 24a, and an inner side roll part 25 forming a forming groove streak 25a1 corresponding to the formed bulging streak 24a1 on the forming circumferential side surface 25a is passed through the corner's place of the main sheet forming part Po1 and the vertical like forming parts Po3, Po3. The circular arc like bent corner parts 2, 2 to bulge out facing upward outside after bulging with facing upward inside are formed on the corner's place (c).

Description

Detailed Description of the Invention

[0001]

INDUSTRIAL APPLICABILITY The present invention makes it possible to use the raw material most effectively, and the workability is very good, and it is possible to obtain an enclosure having a very good mechanical strength after the work. The present invention relates to a manufacturing method of a building board that can be used.

[0002]

2. Description of the Related Art Conventionally, roof tile type roof made of metal,
Many enclosures such as walls are constructed, and various types are manufactured. However, in most of them, both side edges of a flat main plate in the width direction are bent vertically to form a rising portion, and the corner portions of the main plate and the vertical portion are bent and formed at right angles. The molding machine is also configured to mold the building board having the above-mentioned shape.

[0003]

The building board for roof tile roofing of the conventional type described above can be satisfactorily constructed without any problems when the ground surface is flat, but the ground surface is curved. When it is formed, the construction is not only extremely troublesome, but when the base surface has a curved portion and a flat portion, the working width of the curved portion and the straight portion may be different. In order to solve such an inconvenience in construction, a bulging portion that bulges in an arc shape may be formed inside at a corner portion between a flat main plate and a rising portion that is vertically bent. A molding apparatus for molding a building board having such an arcuate bulge has an extremely complicated structure and is expensive.

[0004]

Therefore, as a result of earnest studies to solve the above problems, the inventor of the present invention has found that the present invention makes it possible to form a plate to be formed into a main plate forming part by a group of upper and lower forming rolls, and to form the plate vertically on both sides. An outer roll part formed by forming a shaped part forming part and then forming a forming bulge along the molding circumferential side surface, and an inner roll part forming a forming groove corresponding to the forming bulge on the forming circumferential side surface. After passing through the corner portion of the main plate forming portion and the vertical portion forming portion to the arc-shaped bent corner forming roll composed of and, bulging upward inward to the corner portion, and then protruding upward outward. By using the method for manufacturing a building board in which arc-shaped bent corners are formed, the raw material can be used most effectively, and a good-quality building board can be provided without applying excessive load or strain to the raw material. The present invention solves the above problems.

[0005]

EXAMPLE First, the shape of a building board P formed by the manufacturing method of the present invention will be explained. As shown in FIG. 9, it is arc-shaped above both side edges of the flat main board 1 in the width direction. Bending corners 2 and 2 are formed, and the arc-shaped bending corners 2 and 2 are formed.
The vertical portions 3 and 3 are formed from the upper end of, and the curved portion S is formed at an appropriate position in the longitudinal direction.

As shown in FIG. 1, the molding machine A for molding the building board P from the molded board Po which is a raw material is, as shown in FIG. 2, a first molding section A ₁ and a second molding section A ₁ . It consists molding unit a _2, the upper and lower molding rolls R ₀ is provided, and the second molding portion a ₂ in arc-shaped bent corner molding roll of the molding roll of the plurality of groups in the first mold portion a ₁ R ₁ , R ₁ and final forming roll R ₂ are provided.

First, in the first forming portion A ₁ , as shown in FIGS. 2 and 14, the main plate forming portion Po ₁ and the vertical portion forming portions Po ₃ , Po ₃ are formed from the plate Po to be formed. The main plate forming part Po ₁ becomes the main plate 1 when the building plate P is completed, and both vertical part forming parts Po ₃ , Po ₃ become the vertical parts 3, 3 when completed. The arcuate bent corners 2 and 2 are not yet formed in the first molded portion A ₁ (see FIG. 2).

The first molding portion A ₁ is shown in FIGS.
As shown in (a) and (b), the first to n-th plurality of n
And it provided the upper and lower portions forming rolls R ₀ consisting of stage forming rolls of the molded plate Po by upper lower forming rolls R ₀
Main plate forming part Po ₁ and vertical part forming parts Po ₃ , Po ₃
Is formed.

Assuming that the first forming roll is the first upper and lower forming rolls 11 and the nth forming roll is the upper and lower forming rolls n, the nth upper and lower forming rolls n.
Is a forming roll at the final stage in the upper and lower forming roll groups R ₀ in the first forming portion A ₁ .

The n-th upper and lower forming rolls n are
An appropriate numerical value is entered. Here, the n-th is the sixth as shown in FIG. 2, and it is assumed that the upper and lower forming roll groups R ₀ are provided with a total of six forming rolls. All the upper and lower forming rolls n will be described as the upper and lower forming rolls 16.

However, in explaining the present invention, this is to embody the forming step of the building board P by the upper and lower forming rolls R ₀ of the first forming section A ₁ , and therefore, the nth The upper and lower forming rolls n are not necessarily limited to the sixth upper and lower forming rolls. By increasing the number of stages in the upper and lower forming roll group R ₀ , You may change according to it.

First, the first to sixth upper and lower forming rolls are respectively referred to as upper and lower forming rolls 11 to 16, and FIG.
As shown in, the first to sixth upper and lower forming rolls are arranged from the left side to the right side of the first forming portion A ₁ .
The upper and lower part forming rolls 11 to 16 are the upper rolls 11
a to 16a and lower rolls 11b to 16b.

The roll surfaces of the upper and lower forming rolls of the plurality of stages are provided so as to always rotate at a constant speed. These upper and lower forming rolls 11 to 16 form the first forming portion A.
It is axially supported via side plates 17, 17 and bearings 18, 18 on both sides of the main body of ₁ . The upper and lower forming rolls 11 to 1
6 is an upper gear 19 and a lower gear 20 provided on the roll shaft thereof, and always maintains a meshed state even if the upper and lower rolls are slightly changed.

First to sixth upper and lower forming rolls 11 to 16 are interlocked with side plates 17 and 17 on both sides of the main body by a chain wheel 22 via a variable speed motor and a chain (not shown), or an appropriate number of stages. Only the upper and lower forming rolls are driven, and the other upper and lower forming rolls may be in a free state.

First, the upper and lower forming rolls 11 to 16 of the first forming portion A ₁ are connected to the plate Po to be formed into the connecting portion forming portion P.
o ₄ and Po ₄ are formed, and further, the main plate forming portion Po ₁ and the vertical portion forming portions Po ₃ and Po ₃ are sequentially formed (see FIG. 1).

The step of forming the plate Po to be formed into a desired shape is shown in FIG. 1. First, the connecting portion forming part P is formed on the plate Po by the first and second upper and lower forming rolls 11 and 12.
o ₄ and Po ₄ are formed (see FIG. 1 and FIG. 1). Next, the main plate molding portion Po ₁ and the vertical portion molding portions Po ₃ , Po ₃ are gradually formed by the _third to sixth upper and lower molding rolls 13 to 16 (see FIGS. 1 to).

The first and second upper and lower forming rolls 11,
As shown in FIGS. 3 (a) and 3 (b), the shape of 12 is such that, in the first upper and lower forming rolls, the axially opposite side portions of the upper roll 11a gradually become conical in diameter as they go outward. The lower roll 11b is formed such that both side portions in the axial direction gradually increase in diameter.
It works to lift both widthwise ends of o upward.

Further, in the second upper and lower forming rolls 12, the upper roll 12a has a perfect cylindrical shape, and the axial ends of the lower roll 12b are each formed with a disk portion having a larger diameter. The both sides in the width direction are bent vertically to complete the forming of the connecting portion forming portions Po ₄ , Po ₄ . The manner in which the connecting portion molding portions Po ₄ and Po ₄ are formed on the above-described molding target plate Po is shown in FIGS. 3A and 3B. Further, the forming of the connecting portion forming portions Po ₄ , Po _{4 on} the plate to be formed Po by the first and second upper and lower forming rolls 11, 12 corresponds to and in the forming process diagram of FIG. 1.

Also, the third to fifth upper and lower forming rolls 1
3 to 15, FIGS. 4 (a), (b) and (c), the main plate forming portion Po ₁ and the main plate forming portion Po vertical shaped portion forming portion from both ends in the width direction of the ₁ Po _3, Po ₃ The vertical portion forming portions Po ₃ , Po ₃ gradually approach the vertical state from the horizontal state.

The third to fifth upper and lower forming rolls 13
In Nos. 15 to 15, as in the case of the first upper and lower forming rolls 11, the axial sides of the upper forming rolls 13a to 15a are gradually reduced in diameter, and the axial sides of the lower rolls 13b to 15b are gradually increased in diameter. It was formed. The main plate forming part Po ₁ and the vertical part forming parts Po ₃ , Po ₃ are gradually formed on the plate Po to be formed by the upper and lower forming rolls 13 to 15 having such a shape.
Formed plate Po by the upper and lower forming rolls 13 to 15
The molding steps of are shown in FIG.

Further, the sixth step of the final stage of the first molding part A ₁
The upper and lower forming rolls 16 are for vertically forming the vertical portion forming portions Po ₃ , Po ₃ from both ends in the width direction of the main plate forming portion Po ₁ , and as shown in FIG. 16a is formed in the shape of a thin disk wheel, and the thin disk wheel-shaped upper roll 16a applies an appropriate pressing force to the corner portion c between the main plate forming part Po ₁ and the vertical part forming part Po ₃ . By pressing, the vertical portion molding portions Po ₃ , Po ₃ can be formed perpendicularly to the main plate molding portion Po ₁ . This molding process corresponds to that shown in FIG.

Further, when the vertical portion forming portions Po ₃ , Po ₃ are not completely right angles to the main plate forming portion Po ₁ but have a slight inclination, the fifth upper and lower forming rolls 15 are formed. The degree may be the final stage. As described above, the first to sixth upper and lower forming rolls 11 to 16 are mounted in the first forming portion A ₁ , and when this is shown in FIG. Is.

Next, in the second molding portion A ₂ , the first molding portion A 2
The main plate forming portion of the molded plate Po molded at ₁ Po ₁ and both vertical-like portion forming part Po _3, corner portions between the Po ₃ c, to form an arc-shaped bent corner portions 2 to c. Further, if necessary, a curved portion S is formed along the longitudinal direction of the main plate forming portion Po ₁ as shown in FIGS. 2, 7 (b) and 7 (c).

The second molding part A ₂ is the first molding part A
It is arranged so as to be in the same direction as the direction in which _one molded plate Po is sent out. A circle forming arc-shaped bent corners 2 and 2 at the corners between the main plate forming part Po ₁ and both vertical part forming parts Po ₃ , Po ₃ of the plate Po to be formed sent out from the first forming part A _1. Arc-shaped bent corner forming rolls R ₁ and R ₁ are provided at positions corresponding to the both corners c and c (FIG. 5).
reference).

The arc-shaped bent corner forming rolls R ₁ , R ₁
Is attached to the frame bodies 23, 23, 23 of the second molding portion A ₂ , and more specifically, FIG. 5 and FIG.
As shown in, the upper frame 23a provided above the frame bodies 23, 23 is equipped with arc-shaped bent corner forming rolls R ₁ , R ₁ .

The arc-shaped bent corner forming roll R ₁ has an outer roll portion 24 and an inner roll portion 25, as shown in FIG.
And more specifically, as shown in FIG. 6A, the outer roll portion 24 and the inner roll portion 25 are formed into a flat cylindrical shape, and first, on the molding circumferential side surface 24 a of the outer roll portion 24. A molding bulge 24a ₁ is formed. The molding groove 2 is formed on the molding circumferential side surface 25a of the inner roll portion 25.
5a ₁ is formed, and the molding bulge 24a ₁ of the outer roll portion 24 is accommodated in the molding groove 25a ₁ .

Further, the forming groove 25 of the inner roll portion 25
bottom of a ₁ is formed as a circumferential edge 25a ₂ of substantially arcuate cross section, its circumference edge 25a ₂ is the main plate forming portion Po
The corner portion c between ₁ and the vertical portion molding portion Po ₃ is shown in FIG.
As shown in (b), it is bent and formed in a substantially arc shape.

The outer roll portion 24 and the inner roll portion 25 of the arcuate bent corner forming roll R ₁ are provided so that the rotation surface thereof is inclined, as shown in FIGS. 5 and 6. Specifically, the rotating shaft 24b of the outer roll portion 24
Also, the rotation shaft 25b of the inner roll portion 25 is provided so as to be slightly inclined with respect to the vertical direction.

The arc-shaped bent corner forming rolls R ₁ , R ₁
Are provided on both sides of the frame bodies 23, 23 of the second forming portion A ₂ and are simultaneously bent into arcuate bending corners at both corners c, c of the plate Po sent from the first forming portion A _1. The parts 2 and 2 are molded.

To describe the forming process, as shown in FIGS. 6 (a) and 6 (b), first, the forming bulge 24a ₁ of the outer roll portion 24 is located below the vertical portion forming portion Po ₃ to the main plate forming portion. Pressing to the Po ₁ side, forming groove 25a of the inner roll portion 25
_1, receiving the vertical-shaped portion forming portion Po ₃ which is pressed by the forming bulging strip 24a _1, below the vertical-shaped portion forming part Po ₃ is sandwiched between the molding bulging strip 24a ₁ and the molding groove line 25a ₁ To form an arcuate bulge.

Further, the peripheral edge 25a of the inner roll portion 25
₂ can be a bent portion having a small radius by pressing outward the corner portion c between the main plate forming portion Po ₁ and the vertical portion forming portion Po ₃ by utilizing its arcuate cross-sectional shape. With the arc-shaped bent corner forming rolls R ₁ and R ₁ , the forming state of the plate Po to be formed has a shape corresponding to that shown in FIG. 1.

Further, both arc-shaped bent corner forming rolls R ₁ ,
As shown in FIG. 5, a support roll 26 is provided below R ₁ , and the main plate forming part Po ₁ of the plate to be formed Po is placed on the support roll 26 and moves in the longitudinal direction. Has become.

Further, the arc-shaped bent corner forming roll R
_A final forming roll R ₂ is provided as a subsequent stage of ₁ and R ₁ . As shown in FIG. 2, the final forming roll R ₂ forms a desired building plate P from the plate to be molded Po, and has a curved portion in an appropriate range in the longitudinal direction of the building plate P. S is formed or a corrugated surface w is formed on the main plate 1 (see FIG. 1 and FIG. 2).

The final forming roll R ₂ is composed of an upper final forming roll 27a and a lower final forming roll 27b. As an example of the upper final forming roll 27a and the lower final forming roll 27b, there are cylindrical side surfaces. The corrugated convex-concave molding surfaces 27a ₁ and 27b ₂ are formed so as to have a corrugated shape, and the main-plate molding portion Po ₁ (here, the main plate 1
(Having the same shape as the above), the corrugated surface w is formed on the main plate forming portion Po ₁ by passing through the final forming roll R ₂ .

The final forming roll R ₂ is composed of the frame members 23, ₂
3 is configured to be movable in the vertical direction, and may be a type that is free or driven by itself, and its upper final forming roll 27a and lower final forming roll 2
Upper roll shaft 28a and lower roll shaft 2 supporting 7b
8b is configured to move in the vertical direction.

Then, as shown in FIG. 7A, the passing point of the plate Po to be formed by the upper final forming roll 27a and the lower final forming roll 27b of the final forming roll R ₂ is another arcuate bent corner forming. Rolls R ₁ , R ₁ and first forming part A ₁
When the passage points of the plate to be molded Po of the first to sixth upper and lower forming rolls 11 to 16 coincide with each other, the linear building plate Ps is formed as shown in FIG.

Further, as shown in FIG. 7B, the passing point of the plate Po between the upper final forming roll 27a and the lower final forming roll 27b of the final forming roll R ₂ is formed into another arc-shaped bent corner portion. the roll R _1, R ₁ and the first forming unit a ₁ 1
To sixth molded plate P of sixth upper and lower molding rolls 11 to 16
By forming a step below (or above) the passage point of o, the curved portion S is formed at an appropriate position in the longitudinal direction.
It is possible to form a building board P having

Further, in FIG. 7C, the final forming roll R
Obtained by the flat without forming on the surface of the _second upper final forming rolls 27a and lower final forming roll 27b waveforms uneven shaping surface 27a ₁ and 27b _2, as shown in FIG. 12, the corrugated surface w in the main plate 1 Not formed.

The construction board P formed from the molding target board Po will be described. The arc-shaped bent corners 2 and 2 are the main board 1
It is formed so as to bulge toward the main plate 1 side at a corner portion c between the vertical portions 3 and 3. The vertical parts 3 and 3 are
It is formed in a substantially vertical shape with respect to the main plate 1, and connecting bent portions 4 and 4 are formed at the upper ends of the vertical portions 3 and 3, and are connected to the connected portion of the cap material. .

Next, the plate Po to be molded is transferred to the first molding portion A ₁
The construction plate P formed by the second forming portion A ₂ will be described. As shown in FIG. 10A, arc-shaped bent corners 2, 2 are formed from both side edges of the main plate 1 in the width direction. Vertical portions 3, 3 are formed from above the arc-shaped bent corners 2, 2 and connecting portions 4, 4 are formed at the upper ends of the vertical portions 3, 3.

Specifically, the dimension of the main plate 1 in the width direction is set to the width dimension W ₁ of the main plate 1, and the dimension of the interval between the two vertical portions 3 and 3 formed at the ends of the main plate 1 in the width direction is set to the both vertical states. Part 3,
The facing width dimension W ₃ is ₃ . Is formed to be slightly larger than its main plate width W ₁ and a comparison of the counter width W ₃ facing width W ₃ is the width W ₁ of the two vertical-shaped portions 3, 3 of 1.

[0042] That is, the width dimension W ₁ of the main plate 1 and the face width W ₃ of the two vertical-shaped portion 3, 3, the horizontal direction of both arc-shaped bent corner portions 2 as shown in FIG. 10 (b) They are different in the amounts of both dimensions W ₂ and W ₂ (on the same plane as the main plate 1).

Further, when the arc-shaped bent corner portion 2 is specifically shown, as shown in FIG. 10A, the main plate 1 is inwardly directed upward from both lateral ends of the main plate 1 via the bent pieces 1a (main plate 1). A bulging bent piece 2a that bulges in the direction toward the center) is formed.

Next, a top bent piece 2b is formed which projects further outward from above the bulging bent piece 2a.
As shown in FIGS. 10B and 10C, the arcuate bent corner 2 is formed by the top bent piece 2b and the bulging bent piece 2a.

The top bending piece 2b is an arc-shaped bending corner 2
Is the top portion (including a substantially top portion), and vertical portions 3 and 3 are formed from the top portion. Here, the bent portions of the main plate 1 and the arc-shaped bent corner portion 2 are bent and formed upward of the main plate 1 without protruding downward from the main plate 1.

As shown in FIGS. 10 (a) and 10 (b), the main plate 1 has its width dimension W ₁ including both bending pieces 1a, 1a, and its arcuate bending corners. By forming the outer ends of the top bending pieces 2b, 2b which are the tops of the portions 2, 2 to be larger than the width dimension W ₁ of the main plate 1, the opposing width dimension W of the vertical portions 3, 3 ₃ is the width W ₁
Is bigger than

[0047] Thus, for the width W ₁ of the main plate 1 is smaller than the counter width W ₃ of the two vertical-shaped portion 3, 3, as shown in FIG. 10 (c), the arc-shaped bent corner 2 The total length of L ₂
Is configured from a predetermined range Lo of the corner portion c before the formation of the arc-shaped bent corner portion 2.

Therefore, the total height H from the main plate 1 to the top of the vertical portion 3 before forming the arcuate bent corner 2 is as shown in FIG.
As shown in (c), even after the arc-shaped bent corner portion 2 is formed, the height can be the same without changing. Furthermore, the opposing width W ₃ of the two vertical-shaped portion 3, 3, the same dimensions can be maintained unchanged in both corners point c, previous and the subsequent forming an arcuate bent corner portions 2 to c It is a thing.

As shown in FIG. 9 (a), the building board P has a curved shape in the longitudinal direction, and an outer body such as a roof or wall having an arch-shaped curved portion can be constructed. That is, the building board P is entirely curved in the longitudinal direction, or, as shown in FIG. 9B, a curved portion S is formed in a predetermined range in the longitudinal direction, and the curved shape is formed. It has a radius of curvature ρ. There is also an example in which the other portion is formed flat.

As shown in FIGS. 11 (a) and 11 (b), the cap member Pc has connected portions 6, 6 formed at both widthwise ends of the upper surface portion 5. The plurality of building boards P, P
Is fixed on the base portion 8 by the hangings 7, and both building boards P,
It is folded and connected to the connecting portions 4 and 4 of P facing each other.

Further, as an example of the connecting portions 4 and 4 of the building board P, it is of a type bent and formed in an arc shape as shown in FIG. 17, and FIG. 15 shows a molding process diagram of this example. It is shown.

Further, as another embodiment of the connecting portions 4 and 4, as shown in FIG. 18, one connecting portion 4 is on the main plate 1 side,
Further, the other connecting portion 4 is formed so as to face the outside of the main plate 1, and FIG. 16 shows a molding process diagram of this embodiment. In this embodiment, the cap material Pc is unnecessary.

[0053]

According to the first aspect of the present invention, the plate Po to be molded is formed by the upper and lower forming roll groups R ₀ into the main plate forming part Po ₁ and the vertical part forming parts Po ₃ , Po ₃ on both sides thereof, and then the forming circle. an outer roll section 24 forming a molded bulging strip 24a ₁ along the circumferential surface 24a, the inner roll 25 forming a molded groove line 25a ₁ corresponding to the forming bulging strip 24a ₁ to the forming circumferential side 25a The arc-shaped bent corner forming rolls R ₁ and R ₁ are formed on the main plate forming portion Po ₁ and the vertical portion forming portion Po.
₃ and Po ₃ are passed through the corner point c, and the corner point c
First of all, by using the method for manufacturing a building board, which is formed by forming arc-shaped bent corners 2 and 2 that bulge upward inward and project outward upward, In addition to being able to efficiently form the building board P, it is also possible to form the building board P from a conventional type roof tile roofing building material, and secondly, to apply an unreasonable load or strain from the formed board Po. It is possible to form a high quality building board P with almost no occurrence of the above.

To explain the above effect in detail, the plate to be molded Po is molded into the main plate molding part Po ₁ and the vertical part molding parts Po ₃ and Po ₃ on both sides thereof by the upper and lower molding rolls R ₀ , and then the main plate molding is performed. Part Po ₁ and vertical part forming parts Po ₃ , Po ₃
The arc-shaped bent corners 2 and 2 are formed in the corner position c of the above, and the construction board P can be manufactured consistently. Further, the building board P can be formed by passing a conventional type building material through the arc-shaped bent corner forming rolls R ₁ and R ₁ .

Further, since the conventional roof tile type building material is formed and then the arcuate bent corners 2 are formed on it, the upper and lower forming roll groups R _{0 related} to this forming are formed.
As the first molding portion A ₁ having the above, a conventional type can be used. Therefore, the second molding portion A ₂ having an arcuate bend corner forming rolls R _1, R ₁ to the first molding section A ₁
By connecting the above, a series of molding of the building board P in which the arc-shaped bent corners 2 and 2 are formed can be performed, and there is an advantage that a conventional type molding machine can be fully utilized (see FIG. 14).

Next, corner portions of the after forming the main plate forming portion Po ₁ a vertical shaped portion forming portion Po _3, Po ₃ to the molded plate Po, a main plate forming portion Po ₁ a vertical shaped portion forming portion Po ₃ The arcuate bending corners 2 and 2 are provided on the c side of the arcuate bending corner forming roll R ₁ ,
By forming through R ₁ , it is possible to minimize an unreasonable load applied to the plate to be molded Po at the time of pressing, and to form the plate to be molded Po.
The building board P can be formed without causing distortion.

Next, in claim 2, the molded plate Po
The main plate forming part Po ₁ and the vertical part forming parts Po ₃ and Po ₃ are formed on both sides of the main plate forming part Po ₁ by the upper and lower forming roll group R ₀ , and then the forming bulge 24a ₁ is formed along the forming circumferential side surface 24a. In the arc-shaped bent corner forming rolls R ₁ and R _{1 including the} outer roll part 24 and the inner roll part 25 in which the forming groove 25a ₁ corresponding to the forming bulge line 24a ₁ is formed on the forming circumferential side surface 25a. An arcuate shape that passes through a corner portion c between the main plate forming portion Po ₁ and the vertical portion forming portions Po ₃ and Po ₃ and bulges upward inward at the corner portion c and then protrudes upward and outward. A method for manufacturing a building board, in which bent corners 2 and 2 are formed, and then a plate to be molded Po is passed through a final forming roll R ₂ which is movable in the vertical direction to form a curved portion S in the longitudinal direction. As a result, the building board P molded from the molded board Po has a good shape. Architectural plate P with a Do curved shape
Can be molded. That is, by arranging the final forming roll R ₂ movable in the vertical direction at the final stage,
It is possible to form the curved portion S that is hard to lose its shape.

Next, in the claim 3, wherein the opposing width W ₃ of the two vertical-shaped portion forming part Po _3, Po ₃ is formed larger than the width W ₁ of the main plate forming portion Po _1, their respective parts By using the method for manufacturing a building plate in which the longitudinal direction is curved to have an appropriate curvature, when the arc-shaped bent corners 2 and 2 are formed, the arc-shaped bent corner 2 and the main plate forming portion Po ₁ or the vertical The shaped part Po ₃ does not greatly expand,
It is possible to mold a good quality building board P that does not cause distortion inside.

Next, in the fourth aspect of the present invention, the step of forming the building board P is carried out by the method for producing a building board in which the corrugated surface w is formed on the main plate 1 by the final forming roll R ₂ . In, the corrugated surface w can be accurately and orderly formed along the longitudinal direction of the main plate 1, and the working efficiency can be made extremely good.

[Brief description of drawings]

1] Molding process diagram of a building board molded by a molding machine

FIG. 2 is a schematic view of a molding machine.

FIG. 3A is a schematic view of a first upper and lower part forming roll, and FIG. 3B is a schematic view showing a part of a second upper and lower part forming roll.

FIG. 4 (a) is a schematic view of a third upper and lower part forming roll, (b) is a schematic view showing a part of a fourth upper and lower part forming roll, and (c) is a part of a fifth upper and lower part forming roll. Schematic diagram

FIG. 5 is a front view showing a forming portion of an arc-shaped bent corner forming roll of a second forming portion.

6A is a cross-sectional view of an arc-shaped bending corner forming roll, and FIG. 6B is an arc-shaped bending corner forming roll in which an arc-shaped bending corner is formed between a main plate forming portion and a vertical portion forming portion. Schematic diagram showing how it is formed

FIG. 7 (a) is a schematic view showing the molding of a building board having no curved portion (b) is a schematic view showing the molding of a building board having a curved portion (c) is a wavy shape Schematic diagram showing the molding of a building board that does not have

FIG. 8A is a perspective view showing an embodiment of a final forming roll, and FIG. 8B is a front view showing an embodiment of a final forming roll.

9A is a perspective view of a building board, and FIG. 9B is a schematic side view of the building board.

10A is a vertical sectional front view of a building board, and FIG. 10B is a vertical sectional front view of a building board centered on an arcuate bending corner portion. FIG. Front view in section

FIG. 11 (a) is a schematic view of an enclosure in which roof tiles, roofs, walls, etc. have been constructed with building boards, and FIG. 11 (b) is a vertical sectional front view of the tile bar portion.

FIG. 12 is a perspective view of a building board having no corrugated shape.

FIG. 13 is a perspective view of an embodiment of a building board that does not have a curved portion.

FIG. 14 is a schematic perspective view showing an embodiment of a first molding portion and a second molding portion.

FIG. 15 is a molding process diagram of a building board of another embodiment molded by a molding machine.

FIG. 16 is a molding process diagram of a building board of another embodiment molded by a molding machine.

FIG. 17 is a perspective view of a roof tile part constructed with the building board shown in FIG.

FIG. 18 is a perspective view of a roof tile part constructed with the building board shown in FIG.

[Explanation of symbols]

1 ... main plate Po ... the molded plate Po ₁ ... main plate forming portion Po ₃ ... vertical shaped portion forming portion c ... corner portion 2 ... arcuate bent corner R ₀ ... upper and lower molding rolls R ₁ ... arcuate bent corners forming roll 24 ... outer roll portion 24a ... forming circumferential side 24a ₁ ... molded bulging Article 25 ... inner roll section 25a ... forming circumferential side 25a ₁ ... molding groove line R ₂ ... final forming roll W ₁ ... width W ₃ … Width of opposing width S… curved part w… corrugated surface

Claims (4)

[Claims] 1. An outer roll part formed by forming a main plate forming part and vertical part forming parts on both sides of the main plate forming part by a group of upper and lower forming rolls, and then forming a forming bulge along the side surface of the forming circumference. , An arc-shaped bent corner forming roll consisting of an inner roll part having a forming groove corresponding to the forming bulge on the side surface of the forming circumference and passing through a corner part between the main plate forming part and the vertical part forming part After bulging upward inward at the corner,
A method for manufacturing a building board, which is characterized by forming arc-shaped bent corners that project upward and outward. 2. An outer roll part formed by forming a main plate forming part and vertical part forming parts on both sides of the main plate forming part by a group of upper and lower forming rolls, and then forming a forming bulge along the side surface of the forming circumference. , An arc-shaped bent corner forming roll consisting of an inner roll part having a forming groove corresponding to the forming bulge on the side surface of the forming circumference and passing through a corner part between the main plate forming part and the vertical part forming part To form an arc-shaped bent corner portion that bulges upward inward at the corner portion and then protrudes upward and outward, and then pass the sheet to be formed through a final forming roll that is vertically movable. A method for manufacturing a building board, characterized by forming a curved portion in the longitudinal direction. 3. The building according to claim 1, wherein the opposing width dimension of the both vertical portion molding portions is formed larger than the width dimension of the main plate molding portion, and the longitudinal direction of each portion is curved to an appropriate curvature. Board manufacturing method. 4. The method for manufacturing a building board according to claim 2, wherein a corrugated surface is formed on the main board by the final forming roll.