JP3021342B2 - Insulation panel manufacturing method and manufacturing apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-insulating material which is filled between two metal shells, and a fitting projection thinner than the thickness of the panel on one side edge of the heat-insulating panel and on the other side edge. Regarding a manufacturing method and a manufacturing apparatus of a heat insulating panel formed in which a fitting concave portion in which a fitting convex portion fits is surrounded by a metal outer skin,
The surrounding edges of the panel are adjacent to the edges where the fitting protrusions and the fitting recesses are formed, while surrounding the fitting protrusions and the fitting recesses with a metal outer cover to increase the airtightness and watertightness of the uneven connection portions. In order to easily obtain a heat insulating panel that protects the side end surfaces of the heat insulating material including the fitting protrusions and the fitting recesses, and that ensures sufficient airtightness and watertightness at both ends of the side end surface connection piece. It is related to the technology to be performed.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 11 (a), a heat insulating material 3 is filled between two metal shells 1 and 2, and a fitting projection 4 is provided at one side edge of a heat insulating panel. In the heat insulating panel Aa in which the fitting concave portion 5 in which the fitting convex portion 4 is fitted to the other side edge portion is surrounded by the metal shells 1 and 2, the fitting convex portion 4 is formed.
And the fitting concave portion 5 are fitted to each other so as to achieve airtightness and watertightness.

[0003]

However, in such a structure, as shown in FIGS. 12 (a) to 12 (d), a side edge different from the concave / convex fitting edge portion has a side edge surface. The connecting pieces 6a are formed by bending, and these side end face connecting pieces 6a are connected by connecting means as shown in FIG. 11 (b). In the figure, b is a backup material, c is a caulking agent, and d is a heat insulating material.

By the way, both end edges of the side end face connection piece 6a are cut and removed as shown in FIG.
The edge of the side end face connection piece 6a and the metal cover 1 of the fitting projection 4 and the fitting recess 5 of the concave / convex fitting edge are cut off, and the side end face connection piece 6
At both ends of a, rainwater easily penetrates, rapidly deteriorating the heat insulating material 3 in the fitting convex portion 4 and the fitting concave portion 5 and making it difficult to obtain sufficient airtightness and watertightness. This requires a cutting step of cutting and removing both ends of the piece 6a. As described above, conventionally, the fitting projection 4
And the fitting recess 5 are substantially surrounded by the metal shell 1 to improve airtightness and watertightness, but it is difficult to obtain airtightness and watertightness at the side edge adjacent to the uneven fitting edge.
The original function of the heat insulating panel, which substantially surrounds the fitting projection 4 and the fitting recess 5 with the metal shell 1, cannot be sufficiently exhibited, and a step of cutting both end portions of the side end face connection piece 6a is required. It is what becomes.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has a structure in which a fitting convex portion and a fitting concave portion are surrounded by a metal sheath to increase the airtightness and watertightness of the concavo-convex connection portion. At both side edges of the panel adjacent to the edge where the portion and the fitting concave portion are formed, the side end surfaces of the heat insulating material including the fitting convex portion and the fitting concave portion are protected, and both end portions of the side end surface connecting piece. It is an object of the present invention to provide a method and an apparatus for manufacturing a heat insulating panel capable of easily obtaining a heat insulating panel capable of sufficiently achieving watertightness and airtightness / watertightness in the present invention.

[0006]

According to the manufacturing method of the first aspect, the space between the two metal shells is filled with the heat insulating material and the one side edge of the panel in the width direction is smaller than the thickness of the panel. The thin fitting protrusion 4 is surrounded by metal outer skins 1 and 2 around the fitting recess 5 for fitting the fitting protrusion 4 to the other side edge of the panel in the width direction to produce a panel intermediate product X. At both ends of the panel intermediate product X in the panel length direction, one of the metal outer skins 2 and the heat insulating material 3 is cut, and the other metal outer skin 1 is left so as to protrude in the panel length direction. In this portion, the fitting projection outer skin portion 4a near the side end surface of the heat insulating material 3 is bent and formed on the inner surface side as a substantially bent preliminary bent portion 9, and then the side end surface connecting piece 6 is formed on the side end surface of the heat insulating material 3. Along with being bent so as to face each other, the pre-bent portion 9 is folded so that one side of the side end face connection piece 6 It is folded as a continuous strip 7 folded previous bending portion 9 over the fitting convex portion skin portion 4a which are continuous to the contrary is characterized in.

In the manufacturing apparatus according to the second aspect, the heat insulating material is filled in the space between the two metal skins, and the fitting protrusion which is thinner than the thickness of the panel is provided on one side edge in the width direction of the panel.
At both ends in the panel length direction of the panel intermediate product X in which the fitting concave portion 5 in which the fitting convex portion 4 is fitted to the other side edge portion in the width direction of the panel is surrounded by the metal shells 1 and 2. Cutting means 28 which cuts the metal outer skin 2 and the heat insulating material 3 and leaves the other metal outer skin 1 so as to protrude in the longitudinal direction of the panel, and the heat insulating material 3 including the fitting projection 4 and the fitting recess 5. In order to form the side end face connection piece 6 by bending the remaining metal outer part 1 so as to oppose the side end face of the heat insulating material 3, the remaining metal outer part 1 is fitted near the side end face of the heat insulating material 3. A preliminary bending device 18 that bends the outer skin portion 4 a as a preliminary bent portion 9 having a substantially mountain shape on the inner surface side, and the preliminary bending device 18 that bends the side end surface connection piece 6 so as to face the side end surface of the heat insulating material 3. The bent portion 9 is folded, and one side edge of the side end face connection piece 6 and a fitting convex portion outer skin portion connected thereto are connected. It is characterized in that comprising a folding device 19 folded the previous bending portion 9 as folding a continuous strip 7 over and 4a.

According to the manufacturing method of the first aspect, in the obtained heat insulating panel A, the fitting projection outer skin portion 4a connected to one side edge of the side end face connection piece 6 and one metal outer skin 1 is formed. The metal outer part is folded inward as a continuous piece and protects the heat insulating material 3, enhances the weather resistance, and reliably prevents the intrusion of dew condensation water and rainwater. In addition, in the manufacturing method of the first aspect, the step of cutting the side end face connection piece 6 protruding from the heat insulating material 3 is omitted, and the preliminary bending portion 9 is preliminarily bent into a substantially mountain shape. , A normal folding device 19
By performing the bending, the bending process of folding the continuous folding piece 7 can be performed, and the apparatus can be simplified.

According to the manufacturing apparatus of the second aspect, in the manufactured heat insulating panel A, the fitting projection outer skin portion 4a connected to one side edge of the side end face connection piece 6 and one metal outer skin 1 is provided.
The metal outer cover is folded inward as a continuous piece to protect the heat insulating material 3, enhance the weather resistance, and reliably prevent the infiltration of dew condensation and rainwater. Watertightness can be made sufficient, and
Since the pre-bending device 18 for pre-bending the pre-bent portion 9 into a substantially mountain shape is provided in the manufacturing apparatus according to claim 2, the pre-bending portion 9 is pre-bent in the pre-bending device 18 in a substantially mountain shape. By performing bending with the normal bending device 19, the bending process of folding the continuous folding piece 7 can be performed, and the bending process of folding the preliminary bending portion 9 can be performed with the simple bending device 19, thereby simplifying the device. Can be

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. As shown in FIG. 1 and FIG. 2, both ends of the upper and lower metal outer skins 1 and 2 which are sent out by the feeder and become a product are formed by a roll forming machine 25 and fitted fitting outer skin portions 4 a. And fitting recess outer skin portion 5a
Is formed, and while these two metal shells 1 and 2 pass through a forming conveyor C in which a conveyor is opposed vertically, a foaming resin material is injected from a nozzle between the two metal shells 1 and 2, The foamed resin is foam-filled between the two metal outer skins 1 and 2 by foaming resin, and cut into appropriate lengths by a cutting device 26 to produce a panel intermediate product X.

At one end in the longitudinal direction of the panel adjacent to the edge where the fitting projection 4 and the fitting recess 5 of the panel intermediate product X are formed, as shown in FIG. A cutting cut is made in the metal outer cover 2 and the heat insulating material 3 which are on the upper side at the time of manufacture by the cutter 27. Thereafter, the metal outer cover 2 and the heat insulating material 3 below the metal outer cover 2 are separated from the cut cut, and the lower cut is made. , And only the lower metal skin 1 protrudes in the longitudinal direction of the panel. Then, as shown in FIG.
The side end face connecting piece 6 is formed by being bent so as to face the side end face of the heat insulating material 3. In this case, FIG.
As shown in (a), the metal outer skin portion is folded inward on the inner surface side over one side edge of the side end surface connection piece 6 and the fitting convex outer skin portion 4a connected to the one metal outer skin 1 to form a continuous piece 7 as a series. It is folded. Hereinafter, such a folding device will be described in detail. The cutting means 28 may drive or manually drive the rotary cutter 27,
The panel intermediate product X may be transferred.

FIG. 5 is a perspective view of the manufacturing apparatus. A panel intermediate product X is left at one end in the longitudinal direction of a base 31 having opposed channel members 29 and 29 connected by a connecting member 30. A pre-bending device 18 for pre-bending the fitting convex portion skin portion 4a with the metal skin 1 thus formed, and the side end face connecting piece 6 in the pre-bending portion 9 pre-bent by the pre-bending device 18 are formed at substantially right angles. And a bending device 19 for bending the paper.

The pre-bending device 18 is, as shown in FIG.
A slide table 33 is provided for the support table 32 fixed to the base 31, and is slidably provided in a direction orthogonal to the length direction of the base 31 using a groove fitting structure.
2, and an elevating die 11 that is moved up and down with respect to the receiving die 12.
0 is formed, and a concave portion 13 is formed in the elevating die 11, and the elevating die 11 is screwed down by rotating operation of the rotary handle to lower the preformed portion 9 on the fitting convex portion 4 side of the side end face connection piece 6. Is to bend. The chevron 10 has an outer end which is higher and the other end gradually lower. The design of such a pre-bending device 18 can be variously changed.

Behind the pre-bending device 18, a bending device 19 is arranged. As shown in FIG. 9, the bending device 19 includes a receiving mold 15 having a receiving surface 15a formed in a vertical direction.
And a holding mold 17 guided by the annular guide 24 and raised and rotated in the direction of arrow a. A receiving recess 16 is formed in the receiving surface 15a. The side end face connection piece 6 is erected by a standing or turning operation manually or powered by an actuator or the like to erect the side end face connection piece 6, and the pre-bent portion 9 formed on the side end face connection piece 6 is pushed into the receiving recess 16. Thus, the side end face connection piece 6 can be bent at a substantially right angle with respect to the metal sheath 1. In this case, FIG.
As shown in (a), the folded continuous piece 7 is pressed against the surface side of the metal outer skin 1, as shown in FIG. 10, as compared with the folded continuous piece 7 pressed against the side end face connecting piece 6 side. The bent edge L may appear at the upper edge of the side end face connection piece 6 to enhance the appearance.

By the way, at the end of the side end face connecting piece 6, the portion where the folded piece 14 exists is doubled, and at the place where the folded continuous piece 7 exists, it is quadrupled. In this case, the thickness becomes thicker. Therefore, a receiving recess 16 is formed in the receiving mold 15 which performs the bending process, and the increase in the thickness of the quadrupled portion is absorbed. Thus, the side end face connection piece 6 can be bent substantially at right angles to the metal sheath 1.

Then, as shown in FIG. 9B, the receiving surface 15a of the receiving die 15 has an angle θ exceeding a right angle, that is, about 93 °.
°, the side end face connection piece 6 is bent and formed to an angle exceeding a right angle, and is returned by the spring back action to be a right angle. As shown in FIG. 5, a traveling body 37 travels in the longitudinal direction of the base 31 on a pair of traveling rails 35, 35 via a rack and pinion mechanism 36 at the other end in the longitudinal direction of the base 31. The preliminary bending device 18 and the bending device 19 are mounted on the traveling body 37, and the traveling body 37 is moved via the rack and pinion mechanism 36 by the rotation operation of the rotary handle 38, and the traveling body 37 is moved to the construction site. The other end portion of the panel intermediate product X cut to the matching length is bent to form the side end face connection piece 6, and the traveling of the traveling body 37 causes the panel intermediate product X to be bent. Variations in the various lengths of X can be easily handled.

At the time of folding by the folding device 19, the intermediate portion in the length direction of the panel intermediate product X is placed on the loading rollers 40... Are clamped by the clamp devices 39, 39. Such a clamp device 39 may be a screw type such as a vise, or a hydraulic actuator using hydraulic pressure may be used. The operation of the preliminary bending device 18 may also use a hydraulic actuator utilizing hydraulic pressure.

In the heat insulating panel A thus obtained, the fitting protrusion 4 and the fitting recess are formed at both side edges of the panel adjacent to the edge where the fitting protrusion 4 and the fitting recess 5 are formed. One of the metal shells 1 is bent to face the side end surface of the heat insulating material 3 including the side 5 and the side end surface connecting piece 6 is formed, and the side of the fitting convex portion 4 and the fitting concave portion 5 of the heat insulating material 3 is formed. The end face is covered with the side end face connecting piece 6 to prevent the heat insulating material 3 from deteriorating and to enhance the weather resistance. Then, one side edge of the side end face connection piece 6 and one fitting outer skin portion 4 connected to one metal outer skin 1
The metal outer skin portion is folded inward over a.
To prevent rainwater from infiltrating at both ends of the end face connection piece 6 without fail. In addition, air-tightness and water-tightness at both ends of the side end face connection piece 6 can be made sufficient.

Further, in bending the side end face connection piece 6,
The preliminary bending portion 9 is preliminarily bent into a substantially mountain shape and is bent. By performing the bending with the normal bending device 19, the folding process of folding the continuous folding piece 7 can be performed. Part 9
Can be folded by a simple folding device 19 to simplify the device.

[0020]

According to the manufacturing method of the first aspect, a heat insulating material is filled between the two metal shells, and a fitting projection thinner than the thickness of the panel is formed on one side edge in the width direction of the panel. A panel intermediate product is manufactured by surrounding a fitting concave portion, which fits the fitting convex portion to the other side edge of the panel in the width direction, with a metal shell, and at both ends in the panel length direction of the panel intermediate product, One of the metal shells and the heat insulating material is cut, and the other metal shell is left so as to protrude in the longitudinal direction of the panel. On the side, a bent portion is formed as a preliminarily bent portion, and then, as the side end face connection piece is bent so as to face the side end face of the heat insulating material, the preliminarily bent portion is folded to form a side end face connection piece. Preliminary bending part over one side edge and the mating convex part outer skin part connected to this Since it is folded as a foldable continuous piece, in the obtained heat insulating panel, the metal outer skin portion is folded inward over one side edge of the side end face connection piece and the fitting convex outer skin portion connected to one metal outer skin as a continuous continuous piece. Being folded in series, it protects insulation, enhances weather resistance, can reliably prevent the ingress of dew condensation and rainwater, and can achieve sufficient airtightness and watertightness. In the manufacturing method of (1), since the step of cutting the side end face connection piece protruding from the heat insulating material is omitted and the preliminary bending portion is preliminarily bent into a substantially mountain shape, the folding is continuously performed by folding using a normal bending device. There is an advantage that the bending process of folding the piece can be performed, and the device can be simplified.

In the manufacturing method according to the second aspect, a heat insulating material is filled between the two metal skins, and a fitting projection thinner than the thickness of the panel is provided at one side edge in the width direction of the panel. At the both ends in the panel length direction of the panel intermediate product in which the fitting concave portion in which the fitting convex portion is fitted to the other side edge in the direction is surrounded by a metal outer skin, one of the metal outer skin and the heat insulating material is cut and the other is cut. Cutting means for leaving the metal outer skin so as to protrude in the length direction of the panel, and bending the remaining metal outer skin portion so as to face the side end surface of the heat insulating material including the fitting protrusion and the fitting recess. A pre-bending device for forming a side end surface connection piece, bending a fitting convex portion outer skin portion near the side end surface of the heat insulating material as a pre-bending portion having a substantially mountain shape on the inner surface side with the remaining metal skin portion, As the end face connection piece is bent so as to face the side end face of the heat insulating material It is manufactured by folding the pre-bent portion and including a bending device that folds the pre-bent portion as a continuous piece over one side edge of the side end face connection piece and the fitting convex portion outer skin portion connected thereto. In the heat insulating panel, the metal outer skin portion is folded inward over one side edge of the side end face connection piece and the fitting convex outer skin portion connected to the one metal outer skin, and is successively folded as a continuous piece. In addition, in the manufacturing apparatus according to claim 2, it is possible to enhance the weather resistance, to reliably prevent dew or rainwater from entering, and to achieve sufficient airtightness and watertightness. Since a pre-bending device is provided to pre-bend the pre-bending portion into a shape, pre-bending the pre-bending portion into a substantially mountain shape with the pre-bending device, and then bending using a normal bending device , Can be performed bending of folding the folded continuous piece,
There is an advantage that the bending process for folding the preliminary bending portion can be performed by a simple bending device, and the device can be simplified.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a manufacturing process of a heat insulating panel of the present invention.

2 (a), 2 (b) and 2 (c) are process drawings showing bending of a side end face connection piece, and FIG. 2 (d) is a schematic sectional view.

FIG. 3 is a partially cutaway perspective view of the obtained heat insulating panel.

FIG. 4A is a partially perspective view of the fitting end of the side end face connection piece, partly omitted when viewed from the back, and FIG. 4B is a back view of the fitting recess side end of the side end face connection piece. It is the partial perspective view which omitted a part viewed from FIG.

FIG. 5 is a schematic perspective view of the manufacturing apparatus of the above.

FIG. 6 is a perspective view showing the preliminary bending device according to the first embodiment;

FIG. 7 is a partial side view of the same preliminary bending apparatus.

FIG. 8 is a schematic exploded perspective view of the preliminary bending device according to the first embodiment;

FIG. 9A is a partial perspective view of a bending device, and FIG. 9B is an explanatory diagram showing an operation of a holding die.

FIG. 10 is a partial perspective view showing another embodiment of the above and showing a partly omitted view of the fitting protrusion side end of the side end face connection piece as viewed from the back.

11A and 11B show a conventional example, in which FIG. 11A is a cross-sectional view partially omitted, and FIG. 11B is a cross-sectional view in a connected state.

12 (a), (b) and (c) are process diagrams showing a conventional example of bending a side end face connection piece, and FIG. 12 (d) is a schematic sectional view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal outer shell 2 Metal outer shell 3 Heat insulating material 4 Fitting convex part 4a Fitting convex part outer skin part 5 Fitting concave part 6 Side end surface connection piece 7 Folding continuous piece 9 Preliminary bending part 18 Preliminary bending device 19 Folding device 28 Cutting means X Panel Intermediate product

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04B 1/80 E04C 2/34 E04D 3/35 E04F 13/12

Claims (2)

(57) [Claims] An insulating material is filled between two metal outer skins, and a fitting protrusion thinner than the thickness of the panel is provided on one side edge of the panel in the width direction of the panel. A panel intermediate product is manufactured by surrounding the fitting concave portion to be fitted with the fitting convex portion with a metal skin, and at one end of the panel intermediate product in the panel length direction, one metal skin and a heat insulating material are cut. The other metal skin is left so as to protrude in the length direction of the panel, and the fitting metal outer skin near the side end surface of the heat insulating material is bent to the inner surface side as a preliminary bent portion having a substantially mountain shape with the remaining metal skin. After that, as the side end face connecting piece is bent so as to face the side end face of the heat insulating material, the pre-bent portion is folded, and one side edge of the side end face connecting piece and a fitting connected thereto are connected. Fold the pre-bent part over the joint convex part skin as a continuous piece. And a method for manufacturing a heat insulating panel. 2. A heat-insulating material is filled between two metal outer skins, and a fitting projection thinner than the thickness of the panel is provided on one side edge of the panel in the width direction, and on the other side edge in the width direction of the panel. At both ends in the panel length direction of the panel intermediate product in which the fitting concave portion is fitted with the fitting concave portion surrounded by the metal skin, one metal skin and the heat insulating material are cut, and the other metal skin is cut into the length of the panel. Cutting means to be left so as to protrude in the vertical direction, and forming the side end surface connection piece by bending the remaining metal outer skin portion so as to face the side end surface of the heat insulating material including the fitting convex portion and the fitting concave portion. In addition, a pre-bending device that bends the fitting convex outer skin portion near the side end surface of the heat insulating material as a pre-bending portion having a substantially mountain shape on the inner surface side with the remaining metal skin portion, and a side end surface connecting piece of the heat insulating material. Along with bending to face the side end surface, fold the pre-bent part A heat-insulating panel manufacturing apparatus, comprising: a folding device that folds a pre-bent portion as a continuous piece by folding a pre-bent portion over one side edge of the side end face connecting piece and a fitting convex portion outer skin portion connected thereto.