JP3098960B2 - Panel manufacturing method and panel 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 method for manufacturing a panel such as an insulated refractory panel in which an insulated refractory core is loaded between two metal shells and an apparatus for producing the panel.

[0002]

2. Description of the Related Art Conventionally, a panel A in which an inorganic fiber material d which is a heat insulating refractory core material c is loaded between two metal skins a and b.
Is formed by applying an adhesive to one surface of each of the metal skins a and b, and bonding the surfaces of the metal skins a and b to which the adhesive has been applied to both surfaces of the inorganic fiber material d. . As the adhesive, an adhesive was used in which the components of a two-part adhesive composed of a urethane resin and water were mixed before being applied to the metal shells a and b.

[0003]

However, in the above-mentioned conventional method for manufacturing a panel, it is necessary to mix the components of the two-part adhesive before applying it to the metal shells a and b. The application time of the adhesive to the metal shells a and b must be controlled in consideration of the time from the mixing of each component of the mold adhesive to the hardening thereof, which simplifies the panel manufacturing process. There was a problem that it was not possible.

Further, in the above-mentioned conventional panel manufacturing apparatus, an apparatus for mixing each component of a two-part adhesive before applying to the metal outer layers a and b is required. There was a problem that it could not be simplified. The present invention has been made in view of such a problem, and an object of the present invention is to provide a panel manufacturing method capable of simplifying a process, and to simplify a device. It is an object of the present invention to provide an apparatus for manufacturing a panel.

[0005]

According to a first aspect of the present invention, there is provided a panel manufacturing method comprising the steps of: loading an inorganic fiber material d between two metal sheaths a and b; One component 50 of the two-component adhesive is applied to each of the lower surface of the upper metal sheath a and the upper surface of the lower metal sheath b, and the two-component adhesive is applied to each of the upper and lower surfaces of the inorganic fiber material d. Applying the other component 51, bonding the lower surface of the upper metal shell a and the upper surface of the lower metal shell b to the upper and lower surfaces of the inorganic fiber material d and reacting and bonding the two-component adhesive. It is characterized by the following.

According to a second aspect of the present invention, in addition to the structure of the first aspect, a urethane resin is used as the one component 50 of the two-part adhesive and the two-part adhesive is used. Wherein water is used as the other component 51. The panel manufacturing apparatus according to claim 3 of the present invention is an apparatus for manufacturing a panel by loading an inorganic fiber material d between two metal outer shells a and b, and the lower surface of the upper metal outer shell a An outer coating device 24a for applying one component 50 of the two-component adhesive to each of the upper surfaces of the lower metal shell b, and the other component 51 of the two-component adhesive on the upper and lower surfaces of the inorganic fiber material d. Fiber side coating device 2 for coating
4b, and a molding device 5 that combines the lower surface of the upper metal shell a and the upper surface of the lower metal shell b on the upper and lower surfaces of the inorganic fiber material d and reacts and adheres the two-component adhesive. It is characterized by comprising.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 2 is an explanatory view of a production line for a panel A which is an insulated fireproof panel. At the start end of the production line, uncoilers 2a as a delivery device 2 are provided.
2b is provided, and the metal outer skin a on the hoop material supplied from the upper decoiler 2a is provided on the first
The both side ends in the width direction are roll-formed by the bending device 3 of FIG. The molding shape is shown in FIG. 3 and FIG. Further, punching holes 8a and 8b are punched in a punching portion 9 provided at a feed start end at both ends in the width direction of the metal outer skin b provided under the hoop material supplied from the lower uncoiler 2b. These punched holes 8a and 8b are used for cutting and separating the preceding panel body part A and the succeeding panel body part B as shown in FIG. 5, and as described later, the bending of the lower metal shell b. Finishing is performed at the cutting position of the line.

Bending devices 3, 3 are provided at two places in the middle of the transport of the lower metal sheath b, and end devices for holding a core material to be described later are held by the bending devices 3, 3. Pieces 1 and 1 are 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. An adhesive partial application device 10 is disposed downstream of the folding devices 3, 3, and the adhesive is partially applied to both ends in the width direction of the panel of the lower metal skin b by the partial application device 10. Applied.

Downstream of the partial coating apparatus 10, insertion portions 21 are provided at both ends in the width direction of the panel. In the insertion portions 21, hard refractory core members c and c formed of calcium silicate are used. It is to be inserted. The refractory core material c is composed of an inorganic fiber material d of rock wool material disposed 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. It is.
Then, the adhesive is applied to the both ends in the width direction of the lower metal shell b by the partial coating device 10, and the strip-shaped inorganic material e, e of elongate in the feed direction of the metal shell b is applied to the applied portion. Are loaded and can be bonded.

A loading device 4 is disposed behind the calcium silicate insertion portion 21, and inorganic fibers e formed of rock wool material between the calcium silicate inorganic materials e at both ends in the width direction of the panel. Material d ... can be loaded. The loading device 4 for loading the inorganic fiber material d of rock wool between the inorganic materials e and e of calcium silicate sets the fiber direction of the inorganic fiber material d in the thickness direction of the panel and sets the metal sheath a. , B, and the configuration will be described in detail below.

As shown in FIG. 7, 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 stands by. 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 perpendicular 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, so that several strip-shaped inorganic fiber materials d 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 collected inorganic fiber materials d... To a position above the production line and downstream along the production line. Part 1
While flowing down at 9, it can be loaded between the calcium silicate inorganic materials e, e, already attached by adhesive, on the lower metal shell b, which is continuously fed in the production line. I can do it. In this case, the tip of the inorganic material e ... is brought into contact with the preceding inorganic material e ...
It can be packed. By such packing, the inorganic fiber material d, in the width direction of the panel,
By avoiding that the butting edges 20 of d are aligned in a straight line, and by shifting the butting edges 20, it is possible to avoid the occurrence of a portion having low bending strength in the product.

Such an inorganic fiber material d of rock wool
In the upstream part of the insertion point into the metal shell b below, a skin-side coating device 24a is disposed, and the lower surface of the upper metal shell a guided by the guide roll 60 and the lower metal shell a Urethane resin, which is one component 50 of the two-component adhesive, can be applied to the upper surface of b in advance. As shown in FIG. 8, when the coating nozzle 25 is brought into contact with the conveyed metal skin b, the outer coating device 24 a is one of two-part adhesives ejected at a predetermined pressure from the nozzle hole 26. Receiving the ejection pressure of the component 50
Nozzle holding means 27 for slightly retreating from metal shells a and b to form a small gap E with metal shells a and b
And a roll-shaped equalizing portion 28 formed on the surface of the application nozzle 25 and uniformly applying one component 50 of the two-component adhesive in the gap to apply it to the metal skins a and b in a planar manner.
And When one component 50 of the two-part adhesive is a urethane resin, the coating amount is 400 g / m ^2.
It is about. In the figure, 29 is a cylinder, 30 is a spring, and 31 is a receiving roll.

According to such an outer coating device 24a, the coating nozzle 25 is brought into contact with the lower surface of the upper metal shell a and the upper surface of the lower metal shell b, and the two-liquid type ejected from the nozzle hole 26 is provided. The application nozzle 25 recedes from the metal shells a and b due to the received pressure caused by the one component 50 of the adhesive being received by the metal shells a and b and the receiving roll 31, and the connection between the coating nozzle 25 and the metal shells a and b occurs. A predetermined gap E resulting from the ejection pressure is formed therebetween. One component 50 of the two-component adhesive ejected from the nozzle hole 26 in the gap E is applied to the application nozzle 2.
The metal outer shells a and b are formed in a flat shape and at a thickness corresponding to the gap E in the roll-shaped leveling portion 28 formed in FIG.
Apply to.

Thus, one component 5 of the two-part adhesive is
Coating nozzle 25 at the receiving pressure resulting from the pressure at which the pressure
Is retracted from the metal shells a and b to form a gap E, and one component 50 of the two-component adhesive is flattened in such a gap E and applied to the metal shells a and b. It is possible to satisfactorily apply the coating on the lower surface of the upper metal shell a and the upper surface of the lower metal shell b to be conveyed. Then, by changing the pressure at which one component 50 of the two-component adhesive is ejected from the nozzle hole 26, the one component 50 of the two-component adhesive is ejected to the metal sheaths a and b. ,
This is to change the gap E at which the application nozzle 25 separates from the metal sheaths a and b, and easily change the setting of the thickness of one component 50 of the two-part adhesive. Such a skin-side coating device 2
4 can be variously changed in design.

Downstream of the skin-side coating device 24a, a fiber material-side coating device 24b is provided above and below the inorganic fiber material d. The fiber material-side application device 24b is formed by a nozzle or the like that sprays water, which is the other component 51 of the two-component adhesive, and the other component 51 of the two-component adhesive is supplied from the upper fiber material-side application device 24b. Are sprayed onto the upper surface of the inorganic fiber material d, and the other component 51 of the two-component adhesive is sprayed onto the lower surface of the inorganic fiber material d from the lower fiber material-side application device 24b, and the upper surface and the lower surface of the inorganic fiber material d. The other component 51 of the two-component adhesive can be adhered in the form of a mist (mist). The other component of the two-part adhesive 5
When 1 is water, the coating amount is about 50 g / m ² .

A guide roll (not shown) is provided at a downstream portion of the fiber material side application device 24b. An upper forming die 34 as a forming device 5 is provided at a downstream portion of the guide roll.
It is formed in the form of a double conveyor in which the lower mold 35 and the lower mold 35 are rotatable in a conveyor shape. Such a molding device 5 can be variously changed in design. Then, the metal shells a and b and the inorganic fiber material d are introduced between the upper molding die 34 and the lower molding die 35, and are pressed together, so that the two-pack adhesive applied to the metal shells a and b is removed. The one component 50 and the other component 51 of the two-component adhesive adhered to the inorganic fiber material d come into contact with each other and react to bond the metal outer shells a and b and the inorganic fiber material d.

The metal sheaths a and b and the inorganic fiber material d bonded as described above are sent to a heating furnace, and the two-component adhesive is cured by heating in the heating furnace, and the metal skins a and b and the inorganic fiber material d are heated. The fiber material d is fixed with the two-component adhesive. As the heating furnace, for example, a heating furnace capable of heating to 55 ° C. or higher with a total length of 20 m can be used. By sending the metal sheaths a and b and the inorganic fiber material d at a line speed of about 3 m / min to the heating furnace, The fixation can be completed in about 7 minutes.

At the downstream of the molding apparatus 5 and the heating furnace, FIG.
A sawing machine 36 in the form of a circular saw as a cutting means 43 as shown in FIG. 6 is provided, and at the cutting position L in FIG. 6A and FIG. The upper and lower metal shells a and b and the refractory core materials c are cut. Further, as shown in FIG. 6A and FIG. 10C, a pair of circular saws 41, 41 are arranged as the cutting and removing means 44, and the position R which has entered the front and rear from the cutting position L is provided.
In FIG. 10, the upper metal shell a and the refractory core members c... Are cut so as not to reach the lower metal shell b and can be removed (see FIG. 10D). When removing the unnecessary portions of the refractory core materials c, the release agent is previously applied to the entire area between the punched holes 8a and 8b by the coating device 46, so that the unnecessary portions can be easily removed. It is made to be able to do. In this case, release paper may be stuck instead of the release agent. Then, the end portions of the metal shells a and b left after the unnecessary portions of the refractory cores c have been removed are connected to the connecting piece 42 having the width in the X dimension of FIG. Is bent at the position P where the refractory core material c has been removed to obtain a heat-insulating refractory panel A, and the product is fed out by a feed roller conveyor. C and D in the figure are circular saws 4
The portions removed by 1 and 41 are shown. 10 in FIG.
Reference numeral 2 denotes a connection fitting for connecting the heat-insulating fireproof panels A, A. 63 is a caulking agent and 64 is a heat insulating material such as a ceramic fiber.

By the way, the feeding speed of the feeding device 2 for the metal outer shells a and b, and the conveyance of the upper forming die 34 and the lower forming die 35 of the forming device 5 for filling the refractory core material c between the upper and lower metal outer skins a and b. The line speed up to the cutting means 43, such as the speed, is about 3 m / min. After the cutting by the cutting means 43, the panel body part A from which the refractory core material c at the cutting position L has been removed is fed. The conveyor is brought to the folding means at a high speed of about 40 m / min by a conveyor, and the folding means stops the panel body and performs the bending at a slow speed.

[0022]

As described above, according to the first aspect of the present invention, one component of the two-part adhesive is applied to each of the lower surface of the upper metal shell and the upper surface of the lower metal shell. At the same time, the other component of the two-component adhesive is applied to each of the upper and lower surfaces of the inorganic fiber material, and the lower surface of the upper metal outer skin and the upper surface of the lower metal outer skin are aligned with the upper and lower surfaces of the inorganic fiber material, respectively. To make the two-part adhesive react and adhere,
There is no need to mix the two-part adhesive and then apply it to the metal skin, and at the same time, consider the time from mixing each component of the two-part adhesive to hardening, and applying the adhesive to the metal skin. There is no need to control the application time, and the process can be simplified.

According to the invention of claim 2 of the present invention, the urethane resin is used as the one component of the two-component adhesive, and water is used as the other component of the two-component adhesive. By spraying water on the fiber material, water can be applied to the inorganic fiber material in a non-contact manner, and the inorganic fiber material having a soft surface can be prevented from being damaged by the application of the adhesive.

According to a third aspect of the present invention, there is provided a skin coating device for applying one component of a two-part adhesive to each of a lower surface of an upper metal shell and an upper surface of a lower metal shell. A fiber material-side application device for applying the other component of the two-component adhesive to the upper and lower surfaces of the inorganic fiber material, and the lower surface of the upper metal skin and the upper surface of the lower metal skin to the upper and lower surfaces of the inorganic fiber material And a molding device for reacting and bonding the two-component adhesive together with each other, so that a device for mixing each component of the two-component adhesive before application to the metal skin is not required, and the device is not required. Can be simplified.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing an embodiment of the present invention.

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

FIG. 3 is a partially cutaway perspective view of the heat-insulating fireproof panel according to the first embodiment.

FIG. 4 is a cross-sectional view of the same heat-insulated fireproof panel as in the first embodiment.

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

FIGS. 6A and 6B are cutaway perspective views showing a bent shape at an end in a width direction of a lower metal shell.

FIGS. 7A and 7B show the refractory core material loading device of the above, wherein FIG. 7A is a schematic plan view for explaining the operation, and FIGS. 7B, 7C, and 7D are partial side views.

8 (a) and 8 (b) show the application action of the adhesive according to the embodiment.
(C) is a sectional view.

FIG. 9 shows the cutting device 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 refractory core material. FIG.

10 shows a production process of the above, and (a) to (f) are schematic explanatory diagrams.

[Explanation of symbols]

 a Metal skin b Metal skin d Inorganic fiber material A Panel 5 Molding device 24a Skin coating device 24b Fiber coating device 50 One component of two-component adhesive 51 The other component of two-component adhesive

Claims (3)

(57) [Claims] 1. A method for manufacturing a panel in which an inorganic fiber material is loaded between two metal skins, wherein a two-part adhesive is provided on each of a lower surface of an upper metal skin and an upper surface of a lower metal skin. One component is applied and the other component of the two-component adhesive is applied to the upper and lower surfaces of the inorganic fiber material, respectively, and the lower and upper metal skins of the upper metal outer skin are applied to the upper and lower surfaces of the inorganic fiber material. Characterized by reacting the two-part adhesive with each other to bond the upper surfaces of the two to each other. 2. The panel manufacturing method according to claim 1, wherein a urethane resin is used as the one component of the two-component adhesive, and water is used as the other component of the two-component adhesive. Method. 3. An apparatus for manufacturing a panel by loading an inorganic fiber material between two metal skins, wherein a two-part adhesive is applied to each of a lower surface of an upper metal skin and an upper surface of a lower metal skin. A coating device for applying one of the two components, a coating device for coating the other component of the two-component adhesive on the upper and lower surfaces of the inorganic fiber material, and an upper coating device on the upper and lower surfaces of the inorganic fiber material. A panel manufacturing apparatus, comprising: a molding device that combines a lower surface of a metal shell and an upper surface of a lower metal shell to react and bond a two-part adhesive.