JPH0847830A - Manufacture of heat-insulating/fereproof panel and device thereof - Google Patents

Abstract

PURPOSE:To easily confront inorganic core materials with each other in the longitudinal direction while using many narrow-tablet-like inorganic core materials, for manufacturing a heat-insulating/fireproof panel in which the inorganic core materials are filled between metallic skins. CONSTITUTION:This is a manufacturing method of a heat-insulating/fireproof panel in which a plurality of narrow-tablet-like inorganic core materials (c),... are filled between metallic skins (a), (b). The metallic skins (a), (b) of hoop material are continuously fed. Core material holding parts are formed on both end parts in the width direction of the metallic skins (a), (b). Narrow-tablet-like inorganic core materials (c),... of which lengthwise direction is set along the feed direction of the metallic skins (a), (b), are collected in a mass between the upper/lower skins (a), (b), and this collected core material group is fed between the core material holding parts on the lower skin (b) in the flowing down state obliquely frontward and downward. The extreme end faces of the core materials (c),... are confronted with the rear end faces of the preceding core materials (c),.... The upper skin (a) is brought closer to the lower skin (b), so as to fill the inorganic core materials (c) between the skins (a), (b).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for manufacturing a heat-insulating refractory panel, and more specifically, a strip-shaped inorganic core material for manufacturing a heat-insulating fire-resistant panel in which an inorganic core material is filled between metal skins. The present invention relates to a technique for easily abutting the inorganic core materials with each other in the length direction while using a large number of the above.

[0002]

2. Description of the Related Art Conventionally, in order to manufacture a heat-insulating refractory panel in which a plurality of strip-shaped inorganic core materials are filled between upper and lower metal skins, a long hoop metal skin is continuously fed, and A plurality of strip-shaped inorganic core materials whose lengthwise direction is lengthened in the direction along the feeding direction of the metal outer shell face between such metal outer shells.

[0003]

By the way, in order to feed the strip-shaped inorganic core material elongated in the direction along the feeding direction of the metal skin in the lengthwise direction between the metal skins, the strip-shaped inorganic core material is used. There is a problem that a gap is likely to occur between the inorganic core materials in the lengthwise direction, and the strength is likely to be reduced. The present invention has been made in view of such a problem, and an object thereof is to produce a large number of inorganic core materials in order to produce a heat-insulating refractory panel filled with an inorganic core material between metal skins. A method for manufacturing a heat-resistant fire-resistant panel capable of suppressing the generation of defective products while surely abutting the front and rear ends of each inorganic core material while using and avoiding the occurrence of a low-strength portion due to a gap And in trying to provide the device.

[0004]

According to the first aspect of the present invention, a plurality of strip-shaped inorganic core materials c are provided between the upper and lower metal skins a and b.
.. A method for manufacturing a heat-insulating refractory panel filled with
The metal skins a and b of the hoop material are continuously sent out, and the core material holding portions 1b are formed at both ends of the metal skins a and b in the width direction, and the length direction thereof is set in the feeding direction of the metal skins a and b. The strip-shaped inorganic core materials c, which are long along the direction, are gathered together between the upper and lower metal skins a and b, and the gathered inorganic core materials c ,. Is fed between the core material holding portions 1b, 1b on the metal outer shell b of FIG. 1, the front end surface of the inorganic core material c ... Is butted against the rear end surface of the preceding inorganic core material c. It is characterized in that an inorganic core material c is filled between the metal skins a and b so as to be close to the metal skin b.

In the second aspect, the upper and lower metal skins a,
A device for manufacturing a heat-insulating refractory panel in which a plurality of strip-shaped inorganic core materials c ... Are filled between b, and a sending device 2 for continuously sending out the metal skins a and b of the hoop material, and a metal skin. Core material holding portion forming means for forming core material holding portions 1b at both ends of a and b in the width direction, and a strip-shaped inorganic core material whose length direction is long in the direction along the feeding direction of the metal skins a and b. .. are grouped together, and these grouped inorganic cores c .. .. are slanted forward and downwardly on the lower metal skin b between the core material holding portions 1b and 1b. , B, a feed-in conveyor 17 that feeds at a speed higher than the feed speed, and the upper metal outer skin a and the lower metal outer skin b.
And a molding device 5 for filling the inorganic core material c between the metal outer skins a and b in close proximity to.

[0006]

In the first aspect of the present invention, a large number of inorganic core materials c.
Inorganic core materials c, which are grouped together, ················································································································. While using many inorganic core materials c ..., these inorganic core materials c, c
It is possible to prevent a gap from being formed at the abutting portion in the length direction of the. Suppress the occurrence of weak areas due to the formation of gaps. Suppress the generation of defective products. By abutting in the flowing state, the strip-shaped inorganic core material is not broken by the abutting force.

According to the second aspect, a group of inorganic core materials c ..., In which a large number of inorganic core materials c .. It is fed at a speed faster than the feeding speeds of a and b. The front end surface of the inorganic core material c ... Is easily butted against the rear end surface of the preceding inorganic core material c. Inorganic core material c
While using a large number of .., it is possible to avoid a gap from being formed at the abutting points of these inorganic core materials c, c in the longitudinal direction. Suppress the occurrence of weak areas due to the formation of gaps. Suppress the generation of defective products

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 are explanatory views of the production line of the heat-insulating refractory panel A. At the starting end of the production line, uncoilers 2a and 2b serving as a feeding device 2 are provided at the top and bottom, 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. 6 and 7. 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
4 is used for cutting and separating the preceding product part (a) and the following product part (b), and at the cutting and separating part of the line, the bending finish of the lower metal skin b is performed as described later. It is a thing.

Bending devices 3 and 3 are provided at two places 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 parts 21 are arranged at both ends in the width direction of the panel, and in the insertion parts 21, the hard inorganic core materials c and c made of calcium silicate are inserted. Is done. Then, the adhesive is applied to both widthwise end portions of the lower metal skin b by the partial coating device 10, and the strip-shaped inorganic core material c of calcium silicate, which is long in the feeding direction of the metal skin b, is applied to the applied location. c is loaded so that it can be glued.

A loading device 4 is disposed behind the calcium silicate insertion portion 21, and an inorganic core material formed of a rock wool material is provided between the calcium silicate inorganic core materials c at both ends in the width direction of the panel. c ... can be loaded. By the way, the inorganic core material c is composed of the inorganic fiber material d of the rock wool material arranged in the central portion in the width direction of the panel and the inorganic material e of the calcium silicate arranged in both end portions of the panel in the width direction. It is composed. The loading device 4 for loading the rock wool inorganic fiber material d ..
The fiber direction of the inorganic fiber material d is set in the thickness direction of the panel and is loaded between the metal skins a and b. The configuration will be described in detail below.

As shown in FIG. 8, a cutting device 6 for cutting rock wool into strips is provided with a roller conveyor 11 for receiving at the starting end thereof, and stacks the plate-like inorganic fiber boards D for standby. I am allowed to do it. 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 15 having a stopper 14 is disposed 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 15
A reversing device 7 is arranged at the terminal end of the reversing device 7. In this reversing device 7, each strip-shaped inorganic fiber material d transferred by the conveyor 15 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 inorganic material e, e of calcium silicate already adhered 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 disposed upstream of the insertion position into the lower metal skin b so that the adhesive can be applied to the inner surfaces of the upper and lower metal skins a and b in advance. is there. As shown in FIG. 9, when the adhesive coating device 24 brings the coating nozzle 25 into contact with the metal skin b to be conveyed,
Application nozzle holding means 27 that receives the ejection pressure of the adhesive agent ejected from the nozzle hole 26 at a predetermined pressure to slightly retract the application nozzle 25 from the metal outer cover b to form a slight gap E with respect to the metal outer cover b. And a roll-shaped leveling portion 28 formed on the surface of the coating nozzle 25 to uniformly level the adhesive in the gap and apply the adhesive to the metal outer skin 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 application device 24,
The coating nozzle 25 is brought into contact with the upper or lower metal outer skins a and b, and the adhesive spouted from the nozzle hole 26 is received by the metal outer skin b and the receiving roll 31. 26 retreats from the metal skin b and forms a predetermined gap E with the metal skin b due to the jet 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 retracted from the metal skins a and b by the pressure received due to the pressure of ejecting the adhesive to form the gap E, and the adhesive is leveled in the gap E. The metal skin a,
By applying to b, the upper and lower metal skins a and b being transported
It is possible to satisfactorily coat the upper and lower surfaces. 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 cover b is changed due to the ejection of the adhesive onto the metal outer covers a and b. 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 in the downstream portion of the adhesive applying device 24, and an upper molding die 34 and a lower molding die 35 as the molding device 5 are provided in the 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 the upper and lower metal saws a, b are cut by the upper and lower circular saws 39, 40 at the cutting line L in FIG.
And the inorganic core material c ... Is further cut along the cutting line R with the circular saw 41 so as not to reach the upper metal skin a and the inorganic core material c. The unnecessary inorganic material e of calcium silicate and inorganic fiber material d of rock wool at the cutting portion are removed by a cutter knife or the like. 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 portions of the metal outer skins a and b left after the unnecessary portion of the inorganic core materials c ... Then, the product is bent to obtain the heat-insulating fireproof panel A, and the product is delivered by the delivery roller conveyor 38. C and D in the figure are the removed parts, Y and Z
Indicates the cutting line by the cutter.

The shape of the panel connecting piece 1a for connecting the heat-insulating fireproof 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. By the way, in the embodiment, the inorganic fiber materials d .. of rockwool material are collectively packed and loaded between the inorganic materials e, e of calcium silicate material. It is also possible to load the inorganic core materials c. In order to collectively load the inorganic materials e ...
The core material holding portion 1b for holding the loaded .. is attached to the end holding pieces 1 and 1 at both ends of the lower metal skin b and the inorganic fiber materials d and d previously loaded along the end holding pieces 1 and 1. It is composed of In this way, the loaded inorganic fiber material d.
The structure for holding is collectively referred to as a core material holding portion 1b. Also,
A configuration in which the end holding piece 1 is bent by the bending device 3 and the inorganic material e is loaded along the end holding piece 1 to form the core holding part 1b is collectively referred to as a core holding part forming means.

Further, the delivery speed of the delivery device 2 for delivering the upper and lower metal skins a and b, that is, the line speed is 3 m.
/ Min, and the speed of the infeed conveyor 17 is set to a speed sufficiently higher than the line speed,
The speed can be increased up to 30 m / min.

[0019]

According to the first aspect of the present invention, there is provided a method for manufacturing a heat-insulating refractory panel in which a plurality of strip-shaped inorganic core materials are filled between upper and lower metal skins, wherein the metal skins of the hoop material are continuously formed. A core material holding part is formed at both widthwise ends of the metal skin, and a strip of inorganic core material whose length direction is long in the direction along the metal skin feed direction is collected between the upper and lower metal skins. The collected inorganic core material groups are fed diagonally forward and downward in a state of being flown between the core material holding portions on the lower metal skin, and the front end surface of the inorganic core material is the rear end surface of the preceding inorganic core material. Since the upper metal skin is brought closer to the lower metal skin and the inorganic core material is filled between the metal skins, a large number of inorganic core materials are collected together and the group of inorganic core materials flows downward obliquely. So that The end face can be easily abutted against the rear end face of the preceding inorganic core material, and the abutment force does not break the strip-shaped inorganic core material because the abutment is performed. It is possible to satisfactorily abut each other, and while using a large number of inorganic core materials, it is possible to avoid the formation of gaps at the positions where these inorganic core materials are abutted in the longitudinal direction, and the strength due to the formation of gaps There is an advantage that the generation of weak spots can be suppressed and the generation of defective products can be suppressed.

According to a second aspect of the present invention, there is provided a device for manufacturing a heat-insulating refractory panel in which a plurality of strip-shaped inorganic core materials are filled between upper and lower metal skins, and the metal skins of the hoop material are continuously sent out. An apparatus, a core material holding portion forming means for forming core material holding portions at both ends in the width direction of the metal shell, and a strip-shaped inorganic core material whose length direction is long in the direction along the feeding direction of the metal shell. A feeding conveyer that collects the collected inorganic core groups in a diagonally forward and downward direction between the core holding sections on the lower metal shell b at a speed higher than the feed speed of the metal shell. ,
Since it is provided with a molding device that fills the inorganic core material between the metal skins by bringing the upper metal skin close to the lower metal skin, a group of inorganic core materials in which a large number of inorganic core materials are gathered together, It can be fed down diagonally with a feeding conveyor and at a speed higher than the feeding speed of the metal outer shell, and the front end surface of the inorganic core material can be easily abutted against the rear end surface of the preceding inorganic core material. While using a large number of inorganic core materials, it is possible to avoid the formation of gaps at the positions where these inorganic core materials are abutted in the lengthwise direction, and to suppress the generation of locations where the strength is weak due to the formation of gaps. Therefore, there is an advantage that defective products can be suppressed.

[Brief description of 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 the above production line.

3 (a) and 3 (b) are cutaway perspective views showing a bent shape at an end portion in a width direction of a lower metal outer cover.

FIG. 4 is a cutaway perspective view showing a punched hole formed in the same metal skin.

5A is a perspective view showing a relationship between a bent shape of a lower metal outer cover and a punching hole, and FIG. 5B is a plan view of the punching hole.

FIG. 6 is a perspective view of an end portion of the above-described heat-insulating fireproof panel.

FIG. 7 is a cross-sectional view of a joined state of the heat insulating and fireproof panel of the same.

FIG. 8 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. 9 shows the application action of the above adhesive, (a) and (b)
(C) is a sectional view.

FIG. 10 shows a cutting device of the same, (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.

[Explanation of symbols]

 1b Core material holding part 2 Feeding device 5 Forming device 17 Feeding conveyor a Metal skin b Metal skin c Inorganic core material

Claims (2)

[Claims] 1. A method of manufacturing a heat-insulating refractory panel in which a plurality of strip-shaped inorganic core materials are filled between upper and lower metal skins, wherein the metal skin of the hoop material is continuously fed out, and the width of the metal skin is A core material holding portion is formed at both ends in the direction, and strip-shaped inorganic core materials whose length direction is long in the direction along the feeding direction of the metal outer skin are gathered together between the upper and lower metal outer skins, and these together. The group of the inorganic cores is flowed obliquely forward and downward in a state of being flown between the core holding parts on the lower metal skin, and the front end face of the inorganic core is butted against the rear end face of the preceding inorganic core, and the upper metal A method for producing a heat-insulating refractory panel, characterized in that an outer core is placed close to a lower metal outer layer and an inorganic core material is filled between the outer metal outer layers. 2. A manufacturing apparatus for a heat-insulating refractory panel in which a plurality of strip-shaped inorganic core materials are filled between upper and lower metal skins, and a sending-out device for continuously sending out the metal skins of the hoop material, A core material holding portion forming means for forming core material holding portions at both ends in the width direction of the outer skin, and a strip-shaped inorganic core material whose length direction is long in the direction along the feeding direction of the metal outer skin, together with , A feed-in conveyor for feeding the collected inorganic core material groups diagonally forward and downwardly between the core material holding portions on the lower metal outer cover at a speed higher than the feed speed of the metal outer cover, and the upper metal outer cover And a molding device for filling an inorganic core material between the metal outer skins by bringing the metal cores close to the lower metal outer skins.