JPH0860839A - Heat-insulating fireproof panel - Google Patents

Abstract

PURPOSE: To prevent the bending strength from decreasing when a plurality of rectangular inorganic core materials are charged and sufficiently increase the strength in the thickness direction of a panel. CONSTITUTION: In a heat-insulating fireproof panel in which a plurality of rectangular inorganic core materials (c)... are arranged and charged in the width direction of a panel so as to position the longitudinal direction thereof to correspond to the lengthwise direction of the panel, between the metallic external skins (a), (b) of the front and rear sides, the inorganic core materials (c),... are longitudinally butt-jointed with each other. The butt-jointed edges 20, 20 are shifted to the width direction of the heat-insulating fireproof panel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-insulating refractory panel in which a plurality of strip-shaped inorganic core materials are filled between front and back metal skins and arranged in the width direction of the panel with the length direction thereof being the length direction of the panel. Regarding, in detail, in filling a plurality of strip-shaped inorganic core material, avoiding a decrease in bending strength for that,
The present invention relates to a technique for sufficiently increasing the strength of the panel in the thickness direction.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 12, in an adiabatic refractory panel in which an inorganic core material c is filled between metal outer skins a and b, the inorganic core material c is shorter than the length of the metal outer skins a and b. Therefore, a plurality of the inorganic core materials c are abutted in the length direction. The abutting edge 20 extends over the entire length of the panel in the width direction for abutting the plurality of inorganic core materials c.

[0003]

By the way, as described above, when the sheet-like inorganic core material c is used, the edge of the inorganic core material c is in a straight line along the entire length in the width direction of the panel. Since the abutting edges of the inorganic core materials c, c are straight in the width direction of the panel, the bending strength of the panel is greatly reduced at that location.

The present invention has been made in view of the above problems, and an object thereof is to fill the abutting edges of the inorganic core material in the width direction of the panel in order to fill the inorganic core material between the metal skins. It is an object of the present invention to provide a heat-insulating fire-resistant panel capable of sufficiently increasing the bending strength by avoiding the straight alignment and shifting the abutting edges of the inorganic core material.

[0005]

According to the first aspect of the present invention, a plurality of strip-shaped inorganic core materials c are provided between the front and back metal skins a and b.
.. is a heat-insulating fire-resistant panel A in which the length direction of the panel is the length direction of the panel and is lined in the width direction of the panel, and the inorganic core material c .. 20 is shifted in the width direction of the heat-insulating refractory panel A, and is characterized in that.

In the second aspect of the present invention, the inorganic core material c is composed of the inorganic fiber material d arranged in the central portion in the width direction of the panel and the inorganic material e, e arranged in both end portions in the width direction of the panel. It is characterized in that the fiber direction of the inorganic fiber material d is set in the thickness direction of the panel.

[0007]

According to the first aspect of the present invention, the abutting edges 20 are prevented from being aligned in a straight line in the width direction of the heat-insulating refractory panel A. Avoid making weak points in the bending strength of the adiabatic refractory panel A. Inorganic core material c with relatively weak bending strength
To increase the bending strength of the heat-insulating fire-resistant panel A obtained by filling the space between the metal skins a and b.

In the second aspect of the present invention, the strip-shaped inorganic core material c is formed in a strip shape and the butted edges 20 are shifted in the width direction of the heat-insulating refractory panel A so that the fiber direction of each strip-shaped inorganic core material c is increased. It is oriented in the thickness direction of the panel and further enhances the strength in the thickness direction of the panel.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. 2 and 3 are explanatory views of the production line of the heat-insulating refractory panel A. At the start end of the production line, uncoilers 2a and 2b serving as the feeding device 2 are provided above and below, and supplied from the uncoiler 2a above. The upper metal skin a to be rolled is roll-molded at both end portions in the width direction by the first bending device 3 provided during transportation. The molding shape is shown in FIGS. 7 and 8. Further, the lower metal skin b supplied from the lower uncoiler 2b has a punching hole 8 at a punching portion 9 provided at the feed start end at both widthwise ends thereof.
A and 8b are punched. Such punched holes 8a, 8b
5 is used for cutting and separating the preceding product part a and the following product part b, and at the cutting position L of the line, as will be described later, the bending finish of the lower metal skin b is performed. It is a thing.

Bending devices 3 and 3 are provided at two locations during the transportation of the lower metal outer cover b, and end holding pieces for holding a core material for holding a core material described later by these folding devices 3 and 3. 1, 1 are roll-formed. The end holding piece 1 serves as a panel connection piece 1a for connecting panels. The molding shape is shown in FIGS. A partial adhesive application device 10 is disposed on the downstream side of the folding devices 3 and 3, and the partial adhesive application device 10 partially applies the adhesive to both ends of the lower metal outer cover b in the width direction of the panel. Is applied. On the downstream side of the partial coating device 10, insertion portions 21 are arranged at both ends in the width direction of the panel, and the inorganic core materials c, c are inserted into the insertion portions 21. By the way, the inorganic core material c is composed of an inorganic fiber material d of rockwool material arranged in the central portion in the width direction of the panel and an inorganic material e of calcium silicate arranged in both end portions in the width direction of the panel. It is something.

Thus, the adhesive is applied to both widthwise ends of the lower metal skin b by the partial coating device 10, and the strip-shaped inorganic material of calcium silicate that is long in the feeding direction of the metal skin b is applied to the applied portion. e, e are loaded so that they can be bonded. The loading device 4 is disposed behind the insertion portion 21 into which the calcium silicate inorganic material e is inserted, and the calcium silicate inorganic materials e, e at both ends in the width direction of the panel are disposed.
Inorganic fiber material d ...
Can be loaded.

Inorganic fiber material d of such rock wool
.. is loaded between the inorganic materials e and e of calcium silicate, and the loading device 4 sets the fiber direction of the inorganic fiber material d in the thickness direction of the panel and loads it between the metal skins a and b. The configuration will be described in detail below. As shown in FIG. 9, the cutting device 6 for cutting rock wool into strips is provided with a roller conveyor 11 for receiving at the start end thereof, and stacks the plate-like inorganic fiber boards D so as to stand by. There is. A transfer machine 12 is arranged at the terminal end of the roller conveyor 11 so that one inorganic fiber board D transferred from the roller conveyor 11 can be moved and fed. A slitter 13 that constitutes a main part of the cutting device 6 is arranged at the end of the transfer machine 12 in the transfer direction, and the fiber direction of the slitter 13 is a horizontal direction orthogonal to the feeding direction of the metal outer skins a and b. The inorganic fiber board D oriented in the lateral direction is divided in a direction orthogonal to the fiber direction so that several strip-shaped inorganic fiber materials d ... Can be cut and separated.

A conveyor 61 having a stopper 14 is arranged downstream of the slitter 13 and
The strip-shaped inorganic fibrous materials d ... Received in step 2 can be transported in the horizontal lateral direction substantially orthogonal to the production line as shown by the arrow. Conveyor 61
A reversing device 7 is arranged at the terminal end of the reversing device 7. In the reversing device 7, each strip-shaped inorganic fiber material d transferred by the conveyor 61 is rotated by, for example, the reversing bar 15 to remove the inorganic fiber material d by 90. It is rotated so that the fiber direction is oriented vertically.

Adjacent to the reversing device 7, the feed conveyor 1
6, a side guide 22 and an elevating stopper 23 are provided, and the feed conveyor 16 collects several strip-shaped inorganic fiber materials d .. It can be transferred to the infeed conveyor 17. The feed-in conveyor 17 is composed of a horizontal portion 18 and an inclined portion 19, and conveys several bundled inorganic fiber materials d ..., Above the production line and downstream along the production line, and The calcium silicate inorganic materials e, e already attached with an adhesive on the lower metal skin b continuously fed in the production line while being made to flow down in the inclined portion 19.
It can be loaded in the meantime. in this case,
The tip of the inorganic material e ... Is brought into contact with the preceding inorganic material e .. By such packing, it is possible to avoid aligning the abutting edges 20 of the inorganic fiber materials d and d in a straight line in the width direction of the panel and shift the abutting edges 20, so that a portion of the product having a weak bending strength is I try to avoid it from happening.

Inorganic fiber material d of such rock wool
An adhesive application device 24 is provided upstream of the insertion point into the lower metal skin b so that the adhesive can be applied to both upper and lower surfaces of the upper and lower metal skins a and b in advance. There is. As shown in FIG. 10, the adhesive applying device 24 is
When the coating nozzle 25 is brought into contact with the metal skin b to be conveyed, the coating nozzle 25 is slightly retracted from the metal skin b by receiving the spray pressure of the adhesive sprayed at a predetermined pressure from the nozzle hole 26. It is formed on the surface of the coating nozzle 25 and the coating nozzle holding means 27 that forms a slight gap E with respect to the outer cover b, and the adhesive in the gap is evenly leveled so that the adhesive is planar on the metallic outer cover b. And a roll-shaped leveling section 28 for applying to the. In the figure, 29 is a cylinder, 30 is a spring, and 31 is a receiving roll.

According to such an adhesive applying device 24,
The coating nozzle 25 is brought into contact with the lower metal skin b, and the adhesive sprayed from the nozzle hole 26 causes the metal skin b and the receiving roll 3 to come into contact.
With the pressure received due to being received at 1, the coating nozzle 25 retreats from the metal outer cover b and forms a predetermined gap E with the metal outer cover b due to the ejection pressure. The adhesive sprayed from the nozzle holes 26 in the gap E is evenly applied to the metal outer skin b in a roll-shaped leveling portion 28 formed in the coating nozzle 25 and at a thickness corresponding to the gap E. To do. An adhesive is also applied to the upper metal skin a in the same manner. In this way, the application nozzle 25 is moved to the metal skin a, by the pressure receiving force caused by the pressure of ejecting the adhesive.
By retreating from b, a gap E is formed, and an adhesive is evenly applied in such a gap E to the metal skins a and b, so that the upper and lower surfaces of the upper and lower metal skins a and b to be transported are conveyed. It is possible to apply well even in the case of. Then, by changing the pressure at which the adhesive is ejected from the nozzle hole 26, the gap E at which the coating nozzle 25 separates from the metal outer skins a and b is changed due to the adhesive being jetted onto the metal outer skins a and b. However, the setting of the thickness of the adhesive is easily changed. Such an adhesive applying device 24 can be modified in various ways.

A guide roll (not shown) is provided at a downstream portion of the adhesive applying device 24, and an upper molding die 34 and a lower molding die 35 as a molding device 5 are provided at a downstream portion of the guide roll. It is formed in the form of a double conveyor which is rotatable like a conveyor. Such a molding device 5 has a known structure. A saw machine 36 in the form of a circular saw is disposed downstream of the molding apparatus 5, and at the cutting position L in FIG. , B and the inorganic core material c ... Are cut, and further, a pair of circular saws 41, 41 are arranged, as shown in FIG.
In the above, the upper metal skin a and the inorganic core materials c ... Can be cut and removed so as not to reach the lower metal skin b. When removing the unnecessary portion of the inorganic core material c ..., the release agent is applied in advance over the entire area between the punching holes 8a and 8b, so that the unnecessary portion can be easily removed. ing. Then, the end portion of the metal outer skin b left after the unnecessary portion of the inorganic core material c ... Is removed is assembled into a line by the end face bending machine 37, and the side end piece 42 shown by the X dimension in FIG. The heat-insulating fireproof panel A is obtained by bending at the position P where the core material c has been removed, and the product is delivered by the delivery roller conveyor 38. C in the figure
The second portion shows the removed portion by the circular saws 41, 41.

The shape of the panel connecting piece 1a for connecting the heat-insulating refractory panel A and the shape of the side end portion 42 can be changed in various ways. Further, the side end portion of the upper metal outer cover a may be bent like the side end piece 42 of the lower metal outer cover b, but may not be bent.

[0019]

According to the first aspect of the present invention, there is provided a heat-insulating fire-resistant panel in which a plurality of strip-shaped inorganic core materials are filled between the front and back metal skins so that the length direction of the inorganic core material is aligned in the width direction of the panel. The inorganic cores are butted in the length direction, and the butted edges are offset in the width direction of the heat-insulating refractory panel, so that the butted edges are not aligned in the width direction of the heat-insulating fire-resistant panel. It is possible to avoid forming weak points in the bending strength of the heat-insulating fire-resistant panel, and it is possible to increase the bending strength of the heat-insulating fire-resistant panel obtained by filling an inorganic core material having relatively weak bending strength between metal shells. There is an advantage that you can.

In the second aspect, the inorganic core material is composed of an inorganic fiber material arranged in the center of the panel in the width direction, and an inorganic material arranged in both ends of the panel in the width direction.
Since the fiber direction of the inorganic fiber material is set to the thickness direction of the panel, by making the strip shape and shifting the butt edges in the width direction of the heat-insulating refractory panel, while increasing the bending strength, each strip-shaped inorganic material The fiber direction of the core material is oriented in the thickness direction of the panel, which is advantageous in that the strength in the thickness direction of the panel can be further enhanced.

[Brief description of drawings]

FIG. 1 is a plan view showing a butted state of an inorganic core material according to an embodiment of the present invention.

FIG. 2 is a schematic explanatory view showing the above production line.

FIG. 3 is a schematic explanatory view showing the above production line.

4 (a) and 4 (b) are broken perspective views showing a bent shape at an end portion in a width direction of a lower metal outer cover.

FIG. 5 is a cutaway perspective view showing a punching hole formed in the same metal skin.

FIG. 6 (a) is a perspective view showing a relationship between a bent shape of a lower metal outer cover and a punching hole, and FIG. 6 (b) is a plan view of the punching hole.

FIG. 7 is a perspective view of an end portion of the above-described heat-insulating fire-resistant panel.

FIG. 8 is a cross-sectional view showing a joined state of the above heat-insulating refractory panel.

FIG. 9 shows the same inorganic core loading device, (a) is a schematic plan view for explaining the operation, and (b), (c), and (d) are partial side views.

FIG. 10 shows the application action of the above adhesive, (a)
(B) (c) is sectional drawing.

FIG. 11 shows the above cutting device, (a) is a schematic side view, (b) is an explanatory view showing the action, (c) is a front view showing a circular saw for cutting the upper and lower metal skins, (d) 4) is a front view showing a circular saw for cutting the upper metal skin and the inorganic core material.

FIG. 12 shows a conventional example, (a) is a partially broken perspective view, and (b) is a sectional view.

[Explanation of symbols]

 a metal skin b metal skin c inorganic core material d inorganic fiber material e inorganic material 20 butt edge

Claims (2)

[Claims] 1. A heat-insulating refractory panel in which a plurality of strip-shaped inorganic core materials are filled between the front and back metal skins in the width direction of the panel with the length direction thereof being the length direction of the panel.
The heat-insulating fire-resistant panel characterized in that the inorganic cores are butted in the length direction, and the butted edges are offset in the width direction of the heat-insulating fire-resistant panel. 2. The inorganic core material is composed of an inorganic fiber material arranged at a central portion in the width direction of the panel and an inorganic material material arranged at both end portions in the width direction of the panel, and the fiber direction of the inorganic fiber material. The heat-insulating fire-resistant panel according to claim 1, wherein is set in the thickness direction of the panel.