JP2011080326A - Method for manufacturing noncombustible heat-insulating panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the operation of fixing a metal plate on each of both sides, by facilitating the handling of a core material unit constituted by arranging a plurality of core material blocks, and having the fiber elongation direction directed along a thickness direction. <P>SOLUTION: The plurality of core material blocks 10 cut out from a raw fabric 1 of rock wool are juxtaposed in the state of directing the elongation direction of a fiber 1a along the thickness direction, and first and second connecting members 20A and 20B are fixed to both end surfaces, respectively. Thus, the core material unit 11 is obtained. A panel material 13 is obtained by fixing the steel plate 30 on each of the front and back sides, while a core material unit-connected body 12 is constituted by connecting the core material units 11 via the respective connecting members 20A and 20B in a manufacturing line 50. The panel material 13 is cut to a noncombustible heat-insulating panel 14 with a desired length. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a method for manufacturing a non-combustible heat insulating panel.

  The non-combustible insulation panel is installed for the purpose of preventing the spread of fire in the event of a fire.For example, it is installed as a partition that divides a relatively large building such as a warehouse or factory into a plurality of spaces with a certain area. Or installed as an outer wall panel of a building. Such a non-combustible heat insulation panel is specified by the Building Standards Law to pass a fireproof material performance test according to a predetermined standard, and as a structure thereof, a heat insulation material such as rock wool is cored between two steel plates. A sandwich structure sandwiched as a material is generally used (Patent Document 1).

JP 2009-7874 A

  Rock wool, which is used as a heat insulating material for the core material, is an inorganic artificial mineral fiber that is produced by mixing lime etc. with glassy iron furnace slag obtained by the iron making process and melting it at a high temperature. It is obtained by solidifying the state of the product by blowing it into a string. As for this rock wool, a belt-like material in which the extending direction of the fiber is a long direction is a raw material (hereinafter referred to as a raw fabric), and the raw fabric is predetermined in a state where the long direction is divided. It is cut into a rectangular panel of length to make a core material.

  A non-combustible heat insulating panel is obtained by bonding steel plates to both sides of the core material obtained in this way, but in this panel, the strength in the thickness direction is weak in the longitudinal direction where the fibers of the core material are weakly connected. There is a problem that the rigidity of the panel itself is lowered, for example, the core material extends in the thickness direction.

  Therefore, the raw fabric is cut in a direction orthogonal to the fiber extending direction and cut into a plurality of core material blocks, and the core material blocks are rolled over by 90 ° so that the fiber extending direction is along the thickness direction. It is possible to obtain a non-combustible heat insulating panel in which the extending direction of the fibers is along the thickness direction by fixing the steel plates on both sides of the plurality of core blocks in the parallel state. However, when manufacturing such a non-combustible heat insulating panel, a plurality of parallel core blocks are likely to be separated, so that the process of fixing the steel plates is difficult, and it is expensive to automate the production line. It is assumed that There is also a problem that it is not easy to obtain nonflammable heat insulating panels of various lengths.

  The present invention has been made in view of the above circumstances, and its main problem is to manufacture a non-combustible heat insulating panel in which a plurality of core material blocks are arranged and the direction in which the fibers of the core material extend is along the thickness direction. Another object of the present invention is to provide a manufacturing method that makes it easy to handle a plurality of core blocks arranged side by side, facilitates the work of fixing metal plates to both sides, and easily obtains various lengths.

  The present invention cuts a raw fabric of a strip-like heat insulating material in which the fiber extending direction extends in the longitudinal direction along a cutting line orthogonal to the fiber extending direction to obtain a plurality of core block The process and a predetermined number of the core material blocks are juxtaposed in a state where the extending direction of the fibers is along the thickness direction, and the first connecting member is attached to one end side of both end surfaces of these core material blocks, A core block connecting step of integrally connecting these core block to obtain a core unit by attaching a second connecting member connected to the first connecting member on the other end side, and a plurality of the cores A production line charging step for sequentially charging units into the manufacturing line along a direction orthogonal to the parallel direction of the core block and in a state where the second connection member faces the first connection member; A core member unit connecting step of sequentially connecting the plurality of core member units to obtain a core member unit connecting body by connecting the first connecting member and the second connecting member facing each other in the production line; A metal plate fixing step for obtaining a panel material by fixing a metal plate to the front and back surfaces of the core unit connected body in the production line; and a non-combustible heat insulation of a desired length by cutting the panel material in the production line. And a panel material cutting step for obtaining a panel.

  According to the present invention, in the core block connecting step, the plurality of core blocks arranged in parallel with the fiber extending direction along the thickness direction are connected by the first connecting member and the second connecting member, Construct a material unit. For this reason, the core block is not separated and easy to handle, and is easy to put into the production line. In the production line, the core unit units are connected to each other via the first connecting member and the second connecting member to form the core unit connecting body, and the metal plate is fixed to the front and back surfaces of the core unit connecting body. Therefore, the work for fixing the metal plate is also easy. The panel material in the production line can be configured to be endlessly long, and by cutting this panel material to a desired length, a non-combustible heat insulating panel having a desired length can be easily obtained.

  As a concrete form of the first connecting member and the second connecting member of the present invention, a pair of side plate portions press-fitted into end faces of the core block arranged in parallel, and a central plate portion connecting these side plate portions are provided. The first connecting member has a female fitting portion in the central plate portion, and the second connecting member is fitted into the central plate portion and the female fitting portion by pressing action. The form which has the male type fitting part which connects mutually is mentioned.

  In this mode, in the production line, the male fitting part of the second connecting member is fitted to the female fitting part of the first connecting member by pressing the rear core unit toward the leading core unit. It is possible to connect the core material units arranged in the front and rear direction. For this reason, a core material unit coupling body can be manufactured easily and rapidly.

  According to the present invention, in manufacturing a non-combustible heat insulating panel in which a plurality of core material blocks are arranged and the fiber extending direction of the core material extends along the thickness direction, it is easy to handle the arranged core material blocks on both sides. The metal plate can be easily fixed, and various lengths can be easily obtained.

It is a perspective view of the rock wool original fabric used with the manufacturing method concerning one embodiment of the present invention. It is an end view of the core material block cut out from the rock wool original fabric. It is an end elevation of a state where the core material block is rolled over by 90 °. It is a perspective view in the state where a plurality of core material blocks rolled by 90 degrees were arranged in parallel. It is a perspective view which shows the 1st connection member which connects a some core material block. It is a perspective view which shows the 2nd connection member which connects a some core material block. It is the (a) end view and the (b) sectional view showing the state where the slot which press-fits a connecting member is formed in the end face of a plurality of core material blocks of a parallel state. (A) It is sectional drawing which shows the state which press-fit the 1st connection member in the core material block, (b) It is sectional drawing which shows the state which press-fit the 2nd connection member in the core material block. It is a side view of the core material unit obtained by integrally connecting a plurality of core material blocks with a connecting member. It is a top view showing the state where a plurality of core material units were thrown into a production line. It is a side view showing the state where a plurality of core material units were thrown into the production line. It is a side view which shows the core material unit coupling body which connected the several core material unit thrown into the manufacturing line. It is a side view which shows the connection structure of a 1st connection member and a 2nd connection member. It is a side view which shows the panel raw material which adhered the steel plate to the front and back of a core material unit coupling body. It is a side view which shows the state obtained by cut | disconnecting a nonflammable heat insulation panel from a panel raw material. It is a side view which shows typically the panel manufacturing equipment which performs a manufacturing line injection | throwing-in process-a panel raw material cutting process suitably.

  Hereinafter, with reference to drawings, the manufacturing method of the nonflammable heat insulation panel concerning one embodiment of the present invention is explained in order of a process.

(1) Raw fabric cutting step FIG. 1 shows a raw fabric of rock wool which is a heat insulating material. The rock wool original fabric 1 is a belt having a predetermined width, and the fibers 1a extend in the longitudinal direction (Y direction in FIG. 1). In the manufacturing method of one embodiment, first, a plurality of cutting lines 2 extending in the X direction orthogonal to the longitudinal direction in which the fibers 1a extend are set at equal intervals in the longitudinal direction with respect to the rock wool original fabric 1. And the rock wool original fabric 1 is cut | disconnected along the cutting line 2, and the several rectangular parallelepiped core material block 10 is obtained.

(2) Core Material Block Connecting Step FIG. 2 shows a plurality of core material blocks 10 in a state cut out from the rock wool original fabric 1. In these core material blocks 10, the fibers 1a extend in the Y direction. In the core material block connecting step, first, a predetermined number of core material blocks 10 are turned over by 90 ° as shown in FIG. 3, and the fibers 1a are vertically oriented (in FIG. 1, the Z direction corresponds to the thickness direction). It will be in the state extended to.

  Next, a predetermined number of rolled core blocks 10 in a state in which the fibers 1a extend in the Z direction, that is, the thickness direction, are adjacent to each other as shown in FIG. 4 and in the longitudinal direction (X direction). Make sure that the ends are aligned. Subsequently, a predetermined number of core material blocks 10 in parallel are integrally connected by the first connecting member 20A shown in FIG. 5 and the second connecting member 20B shown in FIG. 6, and the panel-like core material shown in FIG. Let it be unit 11.

  The first connecting member 20 </ b> A is a plate material having a substantially U-shaped cross section in which the side plate portion 22 extends at right angles in the same direction from both ends of the central plate portion 21, and corresponds to the length in the parallel direction of the parallel core blocks 10. It has the length to do. Each side plate portion 22 of the connecting member 20 is formed with a plurality of tapered protruding protrusions 22a whose thickness decreases toward the tip. Further, a groove-shaped female fitting portion 23 a extending in the longitudinal direction is formed at the center in the width direction of the central plate portion 21 over the entire length. The inside of the female fitting portion 23a is formed in a cross-sectional arrow shape so as to have a retaining function.

  On the other hand, the second connecting member 20B is a plate material having a substantially U-shaped cross section in which the side plate portion 22 extends in the same direction from both ends of the central plate portion 21 in the same direction as the first connecting member 20A, and a plurality of core members arranged in parallel. The block 10 has a length corresponding to the length in the parallel direction. Similarly, each side plate portion 22 of the connecting member 20 is formed with a plurality of tapered protruding ridges 22a having a thickness that decreases toward the tip. Further, at the center in the width direction of the central plate portion 21, a protruding male fitting portion 23b extending in the longitudinal direction is formed over the entire length. The male fitting portion 23b is formed in a cross-sectional arrow shape corresponding to the internal shape of the female fitting portion 23a of the first connecting member 20A. The male fitting part 23b is forcibly fitted into the female fitting part 23a of the first connecting member 20A and is fitted in a state where it is prevented from coming off.

  In order to connect a plurality of core material blocks 10 with these connecting members 20A and 20B, first, as shown in FIG. 7, the side plate portions of the connecting members 20A and 20B are provided on both end faces of the aligned core material blocks 10. A pair of parallel grooves 10a into which 22 is press-fitted is formed. Then, the first connecting member 20A is attached to one end side of the both end faces, and the second connecting member 20B is attached to the other end side. In order to attach the connecting members 20A and 20B to the end surface of the core block 10, each side plate portion 22 is press-fitted into the formed continuous groove 10a until the central plate portion 21 contacts the end surface.

  FIG. 8A shows a state where the first connecting member 20A is attached to one end side of the core block 10, and FIG. 8B shows the second connecting member 20B attached to the other end side of the core block 10. Shows the state. In any case, the connecting members 20A and 20B are prevented from coming off when the retaining protrusions 22a are buried in the core block 10, so that the connected state of the core block 10 is maintained. In order to make the central plate portion 21 and the core block 10 flush with each other, as shown in FIGS. 7B and 8, the central plate portion 21 is provided between the grooves 10 a on both end faces of the core block 10. It is preferable to form a strip-like recess 10b corresponding to the plate thickness.

  The connecting member 20 is fixed over all the core material blocks 10 in parallel, and the plurality of core material blocks 10 are integrally connected via the connecting members 20 as shown in FIG. The unit 11 is configured as a fixed unit.

(3) Manufacturing Line Input Step Next, the plurality of core material units 11 manufactured as described above are sequentially input to the manufacturing line 50 as shown in FIGS. In the production line 50, the direction orthogonal to the parallel direction of the core material block 10, that is, the longitudinal direction of the core material block 10 is in a state along the traveling direction (indicated by arrow F) of the production line 50, and the second connection The member 20B is arranged and thrown in front of the traveling direction. Also, the width direction should not be shifted. By arranging the second connecting member 20B on the front side in the traveling direction, the first connecting member 20A at the rear end portion in the traveling direction of the core member unit 11 is moved to the first connecting member 20A in the rearward direction. It will be in the state where the 2nd connecting member 20B of a front end part counters. The core unit 11 put into the production line 50 may be in a state where the first connecting member and the second connecting member are opposed to each other. Therefore, the first connecting member is disposed on the front side in the traveling direction contrary to the above. It may be arranged.

(4) Core Material Unit Connecting Step Subsequently, the plurality of core material units 11 put into the production line 50 as described above are sequentially connected from the front side of the production line 50 as shown in FIG. The material unit connector 1212 is manufactured. In order to connect the core material unit 11, the rear core material unit 11 is pressed toward the preceding front core material unit 11. As a result, as shown in FIG. 13, the male fitting portion 23b of the second connecting member 20B is fitted to the female fitting portion 23a of the first connecting member 20A, and the core unit 11 arranged in the front and rear is connected to each connecting member. It will be in the state connected via 20A, 20B.

  When the male fitting portion 23b is fitted to the female fitting portion 23a, the convex portion having the cross-sectional arrow shape is fitted into the groove having the cross-sectional arrow shape and is prevented from coming off, thereby providing a strong connection state. can get. When the core unit 11 is connected, even if the preceding front core unit 11 is pressed against the rear core unit 11, the core unit 11 does not move forward, and the second connecting member 20B is securely connected to the first connecting member 20A. Try to be linked.

(5) Metal plate fixing process Next, in the said production line 50, as shown in FIG. 14, the steel plate 30 is attached to the front and back of the core material unit coupling body 12, ie, the both surfaces of the thickness direction, with suitable adhesive To adhere and fix. Thus, a long panel material 13 along the production line is produced. The panel material 13 can be configured to be endlessly long in the production line 50.

(6) Panel Material Cutting Step Next, on the downstream side of the production line 50, as shown in FIG. 15, the panel material 13 is cut at a desired location using appropriate cutting means. Thereby, the nonflammable heat insulation panel 14 of desired length formed by the steel plate 30 adhering to the front and back of the several core material block 10 with which the direction where the fiber 1a is extended along the thickness direction is obtained.

  The production line input process to the panel material cutting process can be continuously performed by the panel manufacturing facility shown in FIG. In this panel manufacturing facility, the core material unit 11 is sequentially introduced into the feeding portion 51 a of the conveyance path by the roller conveyor 51, and the core material unit 11 is intermittently conveyed in the direction of arrow F by the cylinder pusher 52. And the steel plate 30 distribute | arranged up and down is each fixed to the front and back of the core material unit 11 in the intermediate part of the production line 50. FIG. The upper and lower steel plates 30 are unwound from the steel plate rolls 30 </ b> A arranged above and below the charging portion 51 a to the downstream side of the production line 50 and guided to the core unit 11 by the guide rolls 53.

  A plurality of core material units 11 are conveyed in a row until reaching the fixing region of the steel plate 30. And the core material unit 11 is conveyed by the upper and lower conveyance rolls 54 integrally with the steel plate 30 in a state sandwiched between the upper and lower steel plates 30, and in the middle, the steel plate 30 is placed on the front and back surfaces of the core material unit 11. On the other hand, it is fixed from front to back. In addition, the steel plate 30 is bonded and fixed to the core material unit 11 with an adhesive applied to the core material unit 11 or the steel plate 30.

  When the steel plate 30 is fixed while the core unit 11 is sandwiched between the upper and lower steel plates 30, the plurality of core material units 11 that are successively conveyed from the rear by the pusher 52 are clogged. From this state, when the core material unit 11 further charged is pushed by the pusher 52, the plurality of core material units 11 from the fixing region of the steel plate 30 to the charging portion 51a have the connecting members 20A and 20B as described above. The core material unit coupling body 12 is configured. Then, after the core material unit 11 on the production line 50 from the input portion 51 a to the fixing region of the steel plate 30 is first connected in this manner, the core material unit 11 input to the input portion 51 a is the pusher 52. When pressed, it is connected to the preceding front core material unit 11, and thereafter, the steel plate 30 is connected to the core material unit connection body 12 while the connection of the core material unit 11 is repeated with the introduction of the core material unit 11. It sticks to the front and back. Thereby, the elongate panel raw material 13 with which the steel plate 30 was fixed to the front and back of the core material unit coupling body 12 is manufactured.

  The panel material 13 having the steel plate 30 fixed to the front and back surfaces of the core material unit connection body 12 is further conveyed and reaches the cutting area. And when the desired length is conveyed, it is cut | disconnected by the nonflammable heat insulation panel 14 of desired length by the cutting means 55 installed in this cutting area | region. By performing the above operation continuously, a large number of incombustible heat insulating panels 14 having a desired length can be obtained continuously.

(7) Effects of one embodiment According to the non-combustible heat insulating panel 14 obtained by the above manufacturing method, since the fiber 1a of the core block 10 extends in the thickness direction, the fiber extends in the longitudinal direction. In comparison, the strength in the thickness direction is significantly improved and has high rigidity.

  Moreover, according to the said manufacturing method, the several core material block 10 cut out from the rock wool original fabric 1 is integrally connected by the 1st connection member 20A and the 2nd connection member 20B, and the one core material unit 11 is comprised. For this reason, the core block 10 is not separated and is easy to handle. As a result, the core block 10 is easily put into the production line 50. And in the production line 50, the core material units 11 are connected to each other via the first connecting member 20A and the second connecting member 20B to constitute the core material unit connected body 12, and the front and back surfaces of the core material unit connected body 12 Since the steel plate 30 is fixed to the steel plate, the fixing work of the steel plate 30 is also easy.

  Moreover, the panel raw material 13 in the production line 50 can be configured to be endlessly long, and by cutting the panel raw material 13 to a desired length, the nonflammable heat insulating panel 14 having a desired length can be easily obtained. In order to connect the core unit 11 on the production line 50, the next rear core unit 11 is pressed against the preceding front core unit 11, and the female fitting of the first connecting member 20A on the front side is performed. The mating portion 23a can be connected by fitting the male fitting portion 23b of the second connecting member 20B on the rear side, and this connecting operation can be performed by a series of operations along with the conveyance of the core unit 11. it can. For this reason, the core unit coupling body 12 can be manufactured easily and quickly.

  In addition, although the raw material of the said core block 10 is the rock wool raw fabric 1, as a raw material of a heat insulating material, it is not restricted to rock wool, In this invention, the direction where a fiber extends extends in one direction (longitudinal direction). Can be used if present.

DESCRIPTION OF SYMBOLS 1 ... Rock wool original fabric 1a ... Fiber 2 ... Cutting line 10 ... Core material block 11 ... Core material unit 12 ... Core material unit connection body 14 ... Nonflammable heat insulation panel 20A ... 1st connection member 20B ... 2nd connection member 21 ... Center Plate portion 22 ... Side plate portion 23a ... Female fitting portion 23b ... Male fitting portion 30 ... Steel plate (metal plate)
50 ... Production line

Claims (2)

An original fabric cutting step of obtaining a plurality of core block by cutting the original fabric of the strip-shaped heat insulating material in which the fiber extending direction extends in the longitudinal direction along a cutting line orthogonal to the extending direction of the fibers;
A predetermined number of the core blocks are juxtaposed in a state in which the fiber extends in the thickness direction, the first connecting member is attached to one end side of both end faces of the core block, and the other end side A core material block connecting step of integrally connecting these core material blocks to obtain a core material unit by attaching a second connecting member connected to the first connecting member to
Manufacturing in which a plurality of the core member units are sequentially placed in a manufacturing line along a direction perpendicular to the parallel direction of the core block and in a state where the second connecting member faces the first connecting member. Line input process,
A core material unit connection step of sequentially connecting the plurality of core material units to obtain a core material unit connection body by connecting the first connection member and the second connection member facing each other in the production line; ,
In the production line, a metal plate fixing step of obtaining a panel material by fixing a metal plate to the front and back surfaces of the core unit unit assembly;
In the production line, a panel material cutting step of cutting the panel material to obtain a non-combustible heat insulating panel of a desired length;
The manufacturing method of the nonflammable heat insulation panel characterized by providing.   The first connecting member and the second connecting member both have a pair of side plate portions press-fitted into end faces of the core block arranged side by side, and a central plate portion connecting these side plate portions, The connecting member has a female fitting portion on the central plate portion, and the second connecting member is fitted to the central plate portion by pressing action on the female fitting portion to connect the two connecting members. It has the male type fitting part to connect, The manufacturing method of the nonflammable heat insulation panel of Claim 1 characterized by the above-mentioned.

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