JP3226197B2 - Manufacturing method and apparatus for insulated fireproof panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing an insulated fire-resistant panel, and more particularly to a technique for easily and continuously producing an insulated fire-resistant panel in which an inorganic core material is filled between metal shells. It is.

[0002]

2. Description of the Related Art Conventionally, in the production of a heat-insulated fireproof panel in which an inorganic core material is filled between metal outer skins, upper and lower metal outer skins can be continuously fed out. It is difficult to fill to the thickness of
It is difficult to increase the bonding strength between the upper and lower metal shells and the inorganic core material,
Thus, a heat-insulating fire-resistant panel in which an inorganic core material is filled between upper and lower metal shells is difficult to commercialize, and it is more difficult to continuously produce it.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and an object of the present invention is to provide an insulated fireproof panel in which an inorganic core material is filled between metal shells. An object of the present invention is to provide a method and an apparatus for manufacturing a heat-insulated fire-resistant panel that can sufficiently increase the bonding strength between a metal sheath and an inorganic core material and can continuously produce such a product.

[0004]

According to a first aspect of the present invention, there is provided a method of manufacturing an insulated fireproof panel in which an inorganic core material c is filled between upper and lower metal shells a and b. b is continuously fed, and an end bending accompanied with a turn is performed at both ends in the panel width direction of the lower metal skin b.
Ends at both ends in the panel width direction of the metal outer skin a
In order to perform partial bending , an adhesive is applied to the lower surface of the upper metal shell a and the upper surface of the lower metal shell b, and the inorganic core material c shaped in a predetermined shape in advance on the lower metal shell b. Supply,
Upper and lower metal shells a and b are introduced between the molding devices 5 in which the upper and lower molding dies 34 and 35 are rotatable in the form of an endless conveyor, and an inorganic core material c is placed between the upper and lower metal shells a and b. To form a long panel body B, and then cut the long panel body B into an appropriate length.

In the second aspect, the upper and lower metal shells a,
A device for manufacturing an insulated fireproof panel in which an inorganic core material c .. is filled between b, a feeding device 2 for continuously feeding upper and lower metal shells a and b, and a lower metal shell b in the panel width direction. Perform end bending with folding at both ends
At the both ends in the panel width direction of the upper metal skin a
A bending device 3 for performing bending, an adhesive applying means S for applying an adhesive to the lower surface of the upper metal skin a and the upper surface of the lower metal skin b, and applying a predetermined shape on the lower metal skin b in advance. The supply device 4 for supplying the shaped inorganic core material c, the upper molding die 34 and the lower molding die 35 are each rotatable in the form of an endless conveyor, and the upper and lower metal shells a and b are introduced and the upper and lower metal members are introduced. A molding device 5 for filling and bonding an inorganic core material c between outer skins a and b to form a long panel body B, and a cutting machine 36 for cutting the long panel body B to an appropriate length. It is characterized by the following.

[0006]

An inorganic core material c formed in a predetermined shape is supplied onto a metal outer skin b having an adhesive applied on the upper surface. Then, the metal outer skin a on which an adhesive is applied to the lower surface
At the same time, the upper molding die 34 and the lower molding die 35 are respectively introduced between the molding devices 5 rotatable in an endless conveyor shape. A long panel body B is formed by filling and bonding an inorganic core material c between the upper and lower metal skins a and b. Thereafter, the long panel body B is cut into an appropriate length to obtain the heat-insulated fireproof panel A. The bonding strength between the inorganic core material c to be filled and the upper and lower metal shells a and b is increased. Easy production of insulated fireproof panels.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 and FIG. 2 are explanatory diagrams of a production line of the insulated fireproof panel A. At the starting end of the production line, upper and lower uncoilers 2a and 2b are provided as a delivery device 2 and supplied from the upper decoiler 2a. The upper metal cover a is roll-formed at both ends in the width direction by the first bending device 3 provided in the middle of the conveyance. The molding shape is shown in FIG. 7 and FIG. The lower metal shell b supplied from the lower uncoiler 2b has a punching hole 8 formed in a punching portion 9 provided at the feed start end at both ends in the width direction.
a and 8b are punched. Such punched holes 8a, 8b
As shown in FIG. 5, is used for cutting and separating the preceding product part A and the following product part B, and at the cutting and separating point of the line, the lower metal sheath b is bent and finished as described later. Things.

Bending devices 3 and 3 are provided at two places in the middle of the transportation of the lower metal sheath b, and end holding pieces for holding a core material to be described later in these bending devices 3 and 3. 1,1 is roll formed. This end holding piece 1 serves as a panel connecting piece 1a for connecting a panel. The molded shape is shown in FIGS. Adhesive applying means S is provided downstream of these folding devices 3 and 3.
The adhesive partial application device 10 is provided as
As shown in FIG. 3, the partial coating apparatus 10 sends pressure air from a pipe 66 to a sealed adhesive tank 65 filled with an adhesive from a pipe 66, and opens the valve 67 so that the adhesive is supplied from a nozzle 68. It is one that can squirt. The adhesive is partially applied to both ends in the width direction of the panel of the metal outer skin b by the partial application device 10. On the downstream side of the partial coating apparatus 10, insertion portions 21 are provided at both ends in the width direction of the panel.
An inorganic material e as an inorganic core material c is inserted. By the way, the inorganic core material c is an inorganic fiber material d of rock wool material arranged at the center in the width direction of the panel,
And an inorganic material e of calcium silicate disposed at both ends in the width direction of the panel.

Then, 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 long in the feeding direction of the metal skin b is applied to the applied portion. The e and e are loaded and adhered, so that the calcium silicate inorganic materials e and e at both ends in the width direction of the panel are provided.
An inorganic core material c .. of rock wool material can be easily inserted between e.

A supply device 4 is disposed behind the insertion portion 21 for inserting the inorganic material e of calcium silicate, and a rock wool material is used between the inorganic materials e of calcium silicate at both ends in the width direction of the panel. The formed inorganic fiber material d can be loaded. The supply device 4 for loading the rock wool inorganic fiber material d .. between the calcium silicate inorganic materials e, e is provided with the inorganic fiber material d.
The direction of the fiber is set in the thickness direction of the panel,
It is to be loaded between b and its configuration will be described in detail below.

As shown in FIG. 9, a cutting device 6 for cutting rock wool into strips is provided with a roller conveyor 11 for receiving at its starting end, and stacks plate-shaped inorganic fiber plates D and waits. It is made to let. A transfer machine 12 is disposed at the end of the roller conveyor 11 so that one inorganic fiber board D transferred from the roller conveyor 11 can be moved and fed. At the end of the transfer machine 12 in the transfer direction, a slitter 13 that constitutes a main part of the cutting device 6 is disposed, and the fiber direction of the slitter 13 is substantially orthogonal to the feed direction of the metal sheaths a and b. The inorganic fiber board D oriented in the horizontal direction is divided in a direction orthogonal to the fiber direction, and several strip-shaped inorganic fiber materials d are cut.
Can be cut and separated.

A conveyor 61 provided with a stopper 14 is disposed downstream of the slitter 13.
The strip-shaped inorganic fiber material d .. received at the step (a) can be transported in a horizontal and transverse direction substantially orthogonal to the production line as shown by an arrow. Conveyor 61
In the reversing device 7, each of the strip-shaped inorganic fiber materials d conveyed by the conveyor 61 is turned, for example, by rotation of a reversing bar 15 so that the inorganic fiber materials d are turned into 90. The fiber direction is turned up and down by rotating by °.

Adjacent to the reversing device 7, the feed conveyor 1
6, side guides 22 and lifting stoppers 23 are provided, and several (five in this embodiment) strip-shaped inorganic fiber materials d whose fiber directions are vertically adjusted by the feed conveyor 16 are collectively collected. It can be transferred to the infeed conveyor 17. The infeed conveyor 17 is composed of a horizontal portion 18 and an inclined portion 19, and transports the combined several inorganic fiber materials d .. above the production line and downstream along the production line, and While falling in the inclined portion 19, the inorganic material e, e of calcium silicate already attached with an adhesive on the lower metal skin b continuously fed in the production line.
It can be loaded in between. in this case,
The tip of the inorganic material e... Is brought into contact with the preceding inorganic material e. By such stuffing, in the width direction of the panel, the butting edges 20 of the inorganic fiber materials d, d are prevented from being aligned in a straight line, and by shifting the butting edges 20, a portion having low bending strength in the product can be formed. It is designed to avoid this.

Such an inorganic fiber material d of rock wool
An adhesive applying device 24 as an adhesive applying means S is provided at an upstream portion of the insertion position into the metal outer skin b below, and an adhesive is previously applied to both upper and lower surfaces of the upper and lower metal outer skins a and b. It can be applied. As shown in FIG. 10, when the application nozzle 25 is brought into contact with the conveyed metal skin b, the adhesive application device 24 receives the ejection pressure of the adhesive ejected at a predetermined pressure from the nozzle hole 26. The application nozzle 25 is slightly retracted from the metal skin b to form a slight gap E with respect to the metal skin b.
And a roll-shaped leveling portion 28 formed on the surface of the application nozzle 25 to uniformly level the adhesive in the gap and apply the adhesive to the metal outer surface b in a planar manner. In the figure, 29 is a cylinder, 30 is a spring, and 31 is a receiving roll.

According to such an adhesive coating device 24,
The application nozzle 25 is brought into contact with the lower metal skin b, and the adhesive ejected from the nozzle hole 26 is applied to the metal skin b and the receiving roll 3.
The application nozzle 25 recedes from the metal sheath b by the receiving pressure caused by being received at 1, and forms a predetermined gap E with the metal sheath b due to the jet pressure. The adhesive ejected from the nozzle hole 26 in such a gap E is applied to the metal outer surface b in a roll-like equalizing portion 28 formed in the application nozzle 25 in a planar manner and at a thickness corresponding to the gap E. I do. An adhesive is similarly applied to the upper metal sheath a. As described above, the application nozzle 25 is caused to receive the metal sheath a, by the receiving pressure caused by the pressure for ejecting the adhesive.
b, the gap E is formed, and the adhesive is leveled in such a gap E and applied to the metal outer shells a, b, so that the upper and lower surfaces of the upper and lower metal outer shells a, b being conveyed are formed. Can be applied well. Then, by changing the pressure at which the adhesive is ejected from the nozzle holes 26, the gap E at which the application nozzle 25 separates from the metal sheaths a and b is changed, and the setting of the thickness of the adhesive is easily changed. Such an adhesive application device 24 can be variously changed in design.

A guide roll (not shown) is provided downstream of the adhesive coating device 24, and a forming device 5 is provided downstream of the guide roll. It is formed in the form of a double conveyor in which the lower mold 34 and the lower mold 35 are rotatable in a conveyor shape. Such a molding device 5 has a known configuration. A cutting machine 36 in the form of a circular saw as cutting means is provided downstream of the molding device 5.
Is arranged, and the upper and lower metal sheaths a and b and the inorganic core material c are cut by the upper and lower circular saws 39 and 40 at the cutting position L in FIG. 4A. Further, as shown in FIG. 4 (a), a pair of circular saws 41, 41 are provided as cutting and removing means, and at a position R which enters before and after the cutting position L, the upper metal sheath a and the inorganic material are removed. Cut the core material c so that it does not reach the metal skin b below,
So that it can be removed. When removing such an unnecessary portion of the inorganic core material c, a releasing agent is previously applied to the entire area between the punched holes 8a and 8b by the coating device 46, so that the unnecessary portion can be easily removed. It has been made like that. In this case, release paper may be stuck instead of the release agent. Then, the end portions of the metal outer shells a and b left after the unnecessary portions of the inorganic core materials c... Have been removed are subjected to an X-dimension shown in FIG. The side end piece 42 indicating the width is bent at the position P where the inorganic core material c has been removed to obtain the heat-insulating fireproof panel A, and the product is fed out by the feed roller conveyor 38. C and D in the figure indicate portions removed by circular saws 41, 41.

The shape and shape of the panel connecting piece 1a for connecting the heat-insulating fireproof panel A and the shape of the side end 42 can be variously changed. Further, the side end portion of the upper metal shell a may be bent like the side end piece 42 of the lower metal shell b, but need not be bent. Further, the side end piece 42 of the lower metal sheath b may be opposed to the side surface of the inorganic core material c by forming a gap of about several millimeters.

In the inorganic material e of calcium silicate, a nailing portion or the like for connection is impregnated with a resin so that the inorganic material e of calcium silicate may be used at the time of nailing or the like.
It is advisable to avoid cracks and the like.

[0019]

According to the first aspect of the present invention, there is provided a method for manufacturing an insulated fireproof panel in which an inorganic core material is filled between upper and lower metal shells, wherein the upper and lower metal shells are continuously fed out, and the lower metal shell panel is provided. At the both ends in the width direction, bends are made with folding back, and the upper metal skin in the panel width direction
Bends are applied to both ends, and an adhesive is applied to the lower surface of the upper metal shell and the upper surface of the lower metal shell, and an inorganic core material shaped into a predetermined shape is supplied on the lower metal shell. And
The upper and lower metal hulls are introduced between the upper and lower molding dies, each of which is rotatable in the form of an endless conveyor, and the inorganic core material is filled and bonded between the upper and lower metal hulls to form a long panel body. Forming, then, since the long panel body is cut to an appropriate length, an inorganic core material formed in a predetermined shape is supplied on the lower metal outer skin coated with an adhesive on the upper surface, and Then, the upper mold and the lower mold are introduced between the upper and lower molds, each of which is rotatable in an endless conveyor shape, together with the upper metal coat having an adhesive applied to the lower surface thereof, and an inorganic core material is placed between the upper and lower metal coats. The long panel body can be formed by filling and bonding, and then the long panel body can be cut into an appropriate length to obtain an insulated fireproof panel.
There is an advantage that the continuous production of the heat-insulated fireproof panel can be easily performed while the joining strength between the filled inorganic core material and the upper and lower metal shells can be increased.

According to a second aspect of the present invention, there is provided an apparatus for manufacturing a heat-insulated refractory panel in which an inorganic core material is filled between upper and lower metal shells, and a delivery device for continuously feeding the upper and lower metal shells, and a lower metal shell. Fold at both ends in the panel width direction
Of metal covering the top of the performs bent end accompanied by return
A bending device that performs end bending at both ends in the panel width direction, adhesive applying means for applying an adhesive to the lower surface of the upper metal shell and the upper surface of the lower metal shell, and A supply device that supplies an inorganic core material shaped into a shape, and an upper molding die and a lower molding die are each rotatable in an endless conveyor shape to introduce upper and lower metal shells and between the upper and lower metal shells. Since a molding device for forming a long panel body by filling and bonding an inorganic core material and a cutting machine for cutting the long panel body to an appropriate length are provided, the filling is performed in the same manner as in claim 1. There is an advantage that continuous production of a heat-insulated fireproof panel can be easily performed while increasing the bonding strength between the inorganic core material and the upper and lower metal shells.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing a production line according to an embodiment of the present invention.

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

FIG. 3 is a schematic explanatory view showing the partial coating apparatus according to the first embodiment.

FIGS. 4A and 4B are cutaway perspective views showing a bent shape at an end in a width direction of a lower metal shell.

FIG. 5 is a cutaway perspective view showing a punched hole formed in the metal outer shell.

FIG. 6A is a perspective view showing a relationship between a bent shape of a lower metal shell and a punched hole in the above, and FIG. 6B is a plan view of the punched hole in the same.

FIG. 7 is an end perspective view of the heat-insulating fireproof panel according to the third embodiment.

FIG. 8 is a cross-sectional view of the same thermally insulated fireproof panel in a joint state.

9A and 9B show a supply device of the inorganic core material, and FIG. 9A is a schematic plan view for explaining the operation, and FIGS. 9B, 9C, and 9D are partial side views.

FIG. 10 shows the action of applying the adhesive of the above, and (a)
(B) and (c) are sectional views.

11 shows a cutting machine of the above, (a) is a schematic side view,
(B) is an explanatory view showing the operation, (c) is a front view showing a circular saw cutting the upper and lower metal shells, and (d) is a front view showing a circular saw cutting the upper metal shell and the inorganic core material. FIG.

[Explanation of symbols]

 2 Feeding device 4 Supply device 5 Molding device 6 Cutting device 34 Upper molding die 35 Lower molding die a Metal skin b Metal skin c Inorganic core material S Adhesive coating means

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Noboru Yoshida 3-2-1, Kise Minamishinmachi, Amagasaki City, Hyogo Prefecture Inside Daido Steel Co., Ltd. (56) References JP-A-64-62221 (JP, A) Akira Tokubo 53-28137 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) B23P 23/00 302 B21D 47/04 B32B 13/00

Claims (2)

(57) [Claims] 1. A method for manufacturing an insulated fire-resistant panel in which an inorganic core material is filled between upper and lower metal shells, wherein the upper and lower metal shells are continuously fed out, and the lower metal shell is provided at both ends in the panel width direction. on Oko a Utotomoni bent end involves wrapping
Bend the metal skin at both ends in the panel width direction.
An adhesive is applied to the lower surface of the upper metal shell and the upper surface of the lower metal shell, and an inorganic core material shaped in a predetermined shape is supplied on the lower metal shell, and the upper mold and the lower The upper and lower metal shells are introduced between the molding dies and the respective molding devices which are rotatable in the form of an endless conveyor, and the inorganic core material is filled and bonded between the upper and lower metal shells to form a long panel body. A method for manufacturing a heat-insulated fireproof panel, comprising cutting a long panel body into an appropriate length. 2. A manufacturing apparatus of insulation refractory panels is filled with the inorganic core material between the upper and lower metal covering, and the feeding device feeds continuously the upper and lower metal covering, the panel width direction of the metal covering of the lower both ends of the panel width direction of the metal covering on to put a Utotomoni bent end involving folded at both ends
A bending device that performs end bending on the part, adhesive applying means for applying an adhesive to the lower surface of the upper metal shell and the upper surface of the lower metal shell, and shaping into a predetermined shape on the lower metal shell in advance. A supply device for supplying the inorganic core material, and an upper molding die and a lower molding die are rotatable in the form of an endless conveyor, and the upper and lower metal shells are introduced and the inorganic core material is filled between the upper and lower metal shells. An apparatus for manufacturing a heat-insulated fire-resistant panel, comprising: a forming apparatus for forming a long panel body by bonding; and a cutting machine for cutting the long panel body to an appropriate length.