JP2009101611A - Molding machine of molding plate, and manufacturing process of molding plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a molding machine of a molding plate capable of molding easily a molding plate which has a continuous flat plate on one surface of the plate and a plurality of concave parts on the other surface of the plate and a flange overhanging inward on opening edges of the concave parts, even in a molding plate manufactured by flowing a non-compressing slurry such as concrete into a molding die. <P>SOLUTION: The molding machine is equipped with a molding frame 2 having a bottom plate and a side plate set from a bottom plate in such a way as surrounding the bottom plate, many elastomer pads 5 positioned in the molding frame in a predetermined interval, which have hardness capable of keeping a desired shape relating to a slurry material for the plate to be set in the molding frame, and a deforming means 6 deforming the elastomer pads 5 in a direction of a diameter against their shaft. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a molding plate molding apparatus and a molding plate manufacturing method, and more specifically, a mold molding having a plurality of recesses formed on a plate surface and a flange projecting inwardly at the opening edge of the recesses. The present invention relates to a plate forming apparatus and a method for manufacturing the mold plate, and more particularly, to a mold forming plate forming apparatus suitable for forming a lightweight and high-strength concrete plate and a method for manufacturing the mold plate.

  Molded plate, that is, a plate formed by using a forming frame, a concrete plate (for example, a large number of hexagonal recesses formed with turtle shell-shaped ribs on the plate surface of the plate, Patent Document 1), molded compressed outer structure fiberboard (for example, Patent Document 2), and the like.

  The concrete plate of Patent Document 1 is formed by standing a large number of protrusions having a shape corresponding to the recesses on the bottom surface of the molding mold, pouring concrete slurry into the mold, and curing.

  In addition, the molded compressed outer structure fiberboard of Patent Document 2 first includes natural fibers obtained from, for example, wood fibers, recycled paper, recycled wood products, or synthetic fibers and mineral fibers such as various plastics and fiberglass. A raw material made of a non-cellulose material is made into a fiber-containing slurry having a moisture concentration of about 99%. Subsequently, the fiber-containing slurry is poured onto a molding mold in which a number of elastomer pads are geometrically arranged and fixed, and suction from the lower surface of the mold and / or simple pressing from the upper and lower surfaces of the mold is performed. The slurry is dehydrated by (prepress) to obtain a dehydrated cake having a water concentration of about 50%. Thereafter, the mold is conveyed to a hot press, and the dehydrated cake is heated and compression-molded by applying a vertical pressure to the mold under heating.

  Then, the above-mentioned mold plate is used, for example, as an outer wall material, and the surface on which the concave portion is formed is installed on a construction substrate or the like by bonding, nailing, or the like, and is used as a flooring material to form the concave portion. The installed surface is installed on the floor base material by gluing, nailing or the like.

JP-A-60-162601 Japanese Patent Laid-Open No. 9-195440

  By the way, in the technique disclosed in Patent Document 1, in order to facilitate demolding, it is necessary to make a draft on the projection of the mold, so that the tortoiseshell-shaped rib of the formed concrete plate has its base portion. On the other hand, the thickness of the tip portion is thin, and there is a limit in increasing the volume of the concave portion in order to reduce the weight. In addition, a flange extending inward cannot be formed at the opening edge of the recessed portion to be formed.

  Further, in the technique disclosed in Patent Document 2, the fiber-containing slurry is poured into a forming mold and compressed, thereby causing the elastomer pad to bulge radially outward with respect to the shaft, thereby causing an inner edge of the opening edge. When this technology is applied to concrete plate molding, concrete slurry is poured into the mold and compressed from above, the slurry on the elastomer pad is formed. All flow out without staying there, and a plate having a through hole is formed without forming a continuous flat plate.

  Patent Document 2 discloses a technique for forming a desired shape by using a flexible membrane (12A) having expandability as an elastomer pad and supplying a pressurized fluid into the tube in FIG. However, when the pressurized fluid is air, it is difficult to maintain the shape, and when the pressurized fluid is an incompressible liquid, it maintains the expanded state in the desired shape. Requires a fluid pumping means and a discharging means, and further requires a valve or the like that locks outflow of fluid from the flexible membrane (12A) while being pressurized by the molding material. Becomes complicated.

  The present invention has been made in view of the problems of the background art described above, and even on a mold plate that is formed by pouring a non-compressed body slurry such as concrete into a mold frame and molding it. Molded plate having a continuous flat plate, having a plurality of concave portions on the other plate surface, and having a flange projecting inwardly at the opening edge of the concave portion. An object of the present invention is to provide a molding apparatus and a method for producing a mold plate.

  In order to achieve the above object, a molding apparatus for a mold plate according to claim 1 is a hollow mold frame having a bottom plate and a side plate erected from the bottom plate so as to surround the bottom plate. Elastomer pads that have a hardness to maintain a desired shape with respect to the slurry-like plate material placed on the frame and are arranged at a predetermined interval on the bottom plate, and these elastomer pads with respect to the axis And a deformation means for elastically deforming radially inward.

  Here, the elastomer pad of the present invention uses a synthetic rubber such as silicon rubber or chloroprene rubber, and the hardness of the elastomer pad is obtained by placing a slurry-like plate material, for example, concrete slurry, on a molding die. When the plate material is cured in this state, the hardness is such that it is not deformed by the pressure.

  According to a second aspect of the present invention, there is provided a molding plate molding apparatus according to the first aspect of the invention, wherein the deforming means implants a head portion in the elastomer pad and an end portion outwardly from the bottom plate of the mold frame. And an operation plate that engages the ends of the pins, and an operation mechanism that moves the operation plate away from the bottom plate of the formwork. The head is moved in the direction of the bottom plate of the mold, so that the elastomer pad is deformed radially inward from the axis.

  According to a third aspect of the present invention, there is provided the molding plate molding apparatus according to the second aspect, wherein the operation mechanism operates a cam disposed between a bottom plate of the molding mold and an operation plate, and the cam. And an actuator to be operated.

  According to a fourth aspect of the present invention, there is provided the molding plate molding apparatus according to the first aspect of the invention, wherein the elastomer pad is disposed so as to cover the cylindrical core material planted on the bottom plate, A suction pump for sucking air from a hollow portion defined between the cylindrical core material and the elastomer pad, and sucking air from the hollow portion by the suction pump, and It is characterized by being deformed inward in the radial direction.

  Furthermore, in the molding plate molding apparatus of claim 5, in the invention of claim 4, the deformation means includes a plurality of fluid passages penetrating the peripheral wall of the cylindrical core material, and an axial core of the cylindrical core material. And a fluid passage formed in the bottom plate of the molding frame, and the hollow portion of the elastomer pad is communicated with the upper suction pump through the fluid passage.

  According to a sixth aspect of the present invention, there is provided a method for producing a molded plate, wherein the molding plate molding apparatus according to any one of the first to fifth aspects is used, and a slurry-like plate material is placed in the molding die. A molding plate through a step of setting, a step of curing the slurry-like plate body material, and a step of deforming the elastomer pad by the deformation means and demolding the cured plate body from the molding frame. It is characterized by obtaining.

  Here, in the method for producing a molded plate of the present invention, the slurry-like plate material is not limited to concrete slurry, for example, concrete slurry such as ordinary concrete, fiber-reinforced high-strength concrete, resin concrete, and various ceramic slurries. , Calcium silicate slurries, and natural fibers obtained from, for example, wood fibers, recycled paper, recycled wood products, etc., or synthetic fibers and mineral fibers such as various plastics and fiberglass It may be a fiber-containing slurry containing fibers made of a non-cellulosic material.

According to the molding apparatus for a mold plate of claim 1, the slurry-like plate body material is placed on the mold frame, and after the slurry-like plate body material is cured, the elastomer pad is deformed by the deformation means. By reducing the size of the cured plate body from the mold frame, it is possible to easily obtain a mold plate in which a flange projecting inward is formed at the opening edge of the recess.
That is, according to this molding plate molding apparatus, the strength of each elastomer pad is made larger than the pressure generated by the slurry-like plate body material placed on the molding frame, so that the plate body material is molded into the molding frame. The elastomeric pad does not deform even if it is placed on the surface. Therefore, even a concrete plate or the like can easily form a molded plate having a uniform desired recess, for example, a recess having a flange projecting inwardly at the opening edge. Can get to.
A mold plate having a flange projecting inwardly at the opening edge of such a recess has a rib that defines the recess reinforced by the flange to form a highly rigid plate, and the plate is used alone. However, when two or more sheets are bonded to form a multilayer plate, there is an effect that the bonding area between the two can be increased.

  According to the molding plate molding apparatus of claim 2 described above, since the elastomer pad is deformed by pulling out the pin, the elastomer pad is reliably reduced radially inward with respect to the shaft core, and is cured. By doing so, the cured mold plate can be easily and reliably detached from the elastomer pad.

  Further, according to the molding plate molding apparatus of the third aspect described above, since the operation plate is moved by the cam operated by the actuator, the pin can be pulled out reliably and easily.

  In addition, according to the molding apparatus for a mold plate of claim 4, the shape of the elastomer pad is maintained by the cylindrical core material, so that a uniform recess can be formed, and the cylindrical core material and the elastomer pad can be formed. By sucking out air from the hollow space defined between them, the elastomer pad can be reliably reduced radially inward with respect to the shaft core, and the mold plate can be easily and reliably removed from the elastomer pad. Can be withdrawn.

  According to the molding plate molding apparatus of claim 5, the air in the hollow portion defined between the cylindrical core material and the elastomer pad can be sucked from the peripheral wall of the cylindrical core material. The suction efficiency is increased, and the elastomer pad can be reduced more quickly and reliably.

  Further, according to the method for manufacturing a mold plate according to claim 6 described above, since each elastomer pad has a hardness higher than that of the fluid material to be cast on the mold frame, the plate material is cast on the mold frame. However, the elastomeric pad is not deformed, and therefore a molded plate having a uniform recess can be obtained even with a concrete plate or the like. In addition, since the elastomer pad is forcibly reduced and deformed, the elastomer pad can be surely detached from the mold frame, and a mold plate having a flange sufficiently projecting inward at the opening edge of the recess can be obtained. it can.

  DESCRIPTION OF EMBODIMENTS Embodiments of a molding plate molding apparatus and a molding plate manufacturing method according to the present invention will be described below in detail with reference to the drawings.

  1 to 3 show a molding apparatus for a molding plate according to the present invention. FIG. 1 is a perspective view conceptually showing the whole molding apparatus, and FIG. 2 is a molding die shown in FIG. FIG. 3 is a cross-sectional view showing the state of the elastomer pad when the mold plate is removed from the mold frame shown in FIG. 1. It is.

  The molding apparatus 1 according to this embodiment includes a molding mold 2. As shown in FIG. 1, the mold 2 is composed of a bottom plate 3 and a side plate 4 erected so as to surround the bottom plate 3. A plurality of elastomer pads 5 are geometrically arranged on the inner surface (upper surface) of the bottom plate 3 with a predetermined interval.

  The elastomer pad 5 has elasticity and is a slurry-like plate material to be placed on the molding die 2, for example, silicon rubber having a hardness enough to maintain a desired shape against the pressure of the concrete slurry S, etc. An approximately regular hexagonal column upper portion 5a having a height of approximately 20 mm and a side length of approximately 15 mm; and a substantially regular hexagonal column having a height of approximately 5 mm and a side length of approximately 10 mm that is concentric with the upper portion 5a. As shown in FIG. 2, the inside 5c is hollow and has a base 5b.

  Further, the molding apparatus 1 includes a deformation means 6 that elastically deforms the elastomer pad 5. As shown in FIG. 2, the deformation means 6 includes a pin 7 implanted in the elastomer pad 5, an operation plate 8 that supports the lower end of the pin 7, and the operation plate 8 as a bottom plate 3 of the molding frame 2. And a plate moving mechanism 9 to be separated from and contacted. Further, in this molding apparatus 1, as shown in FIG. 1, the operation plate 8 is slidably held by a guide post 3a erected downward from the bottom plate 3 and is urged upward by a spring 3b. ing.

  The pin 7 has a flange 7b bulged in the radial direction with respect to the axis of the shaft 7a at the head. The lower portion of the shaft 7a protrudes downward from the bottom surface of the elastomer pad 5, and a male screw portion 7c is formed at the lower portion. The flange 7 b of the pin 7 is embedded in the top of the elastomer pad 5.

  In the deforming means 6, the pin 7 of each elastomer pad 5 extends downward from the pin insertion hole 3 c formed in the bottom plate 3 of the molding die 2, and further, the pin insertion hole 8 a formed in the operation plate 8. The lower end of the pin 7 is locked to the operation plate 8 by a nut 10 screwed into the male screw 7c.

  As shown in FIG. 1, the plate moving mechanism 9 includes an operation shaft 11 installed between the bottom plate 3 of the mold 2 and the operation plate 8, a cam 12 fixed to the operation shaft 11, The actuator 13 rotates the operation shaft 11. In the present embodiment, in order to rotate the plurality of shafts 11 by one actuator 13, sprockets 14 are fixed to the end portions of the shafts 11, and a chain 15 is wound around the sprockets 14. Yes.

  Below, the manufacturing method of the shaping | molding board which concerns on this invention using the shaping | molding apparatus 1 of an above-described structure is demonstrated.

  A concrete slurry S is poured as a slurry material into the forming mold 2 of the forming apparatus 1 shown in FIG. As shown in FIG. 2, the elastomer pad 5 in this state is maintained in a state where the upper portion 5a is swollen by its hardness and elastic force. In addition, the concrete slurry S contains, for example, fibers such as steel fibers and organic fibers using cement as a base material.

  Next, natural curing or steam curing is performed to harden the concrete slurry S.

  Next, by actuating the actuator 13 and rotating the operation shaft 11 to raise the cam 12, the operation plate 8 is moved away from the bottom plate 3 of the molding frame 2 (downward) as shown in FIG. While moving, the pin 7 is moved downward, and the upper part 5a of the elastomer pad 5 is reduced accordingly.

  In this state, the hardened concrete plate A is taken out from the mold 2. At this time, since the upper portion 5a of the elastomer pad 5 does not bite into the concrete plate A, the concrete plate A can be easily detached from the molding frame 2.

  After detaching the concrete plate A from the mold 2, the actuator 13 is operated to rotate the operating shaft 11 and lay the cam 12 sideways. By the restoring force of the elastomer pad 5 and the biasing force of the spring 3 b, The operation plate 8 moves in the direction toward the bottom plate 3 of the mold 2 (upward), the pin 7 is moved upward, and the upper portion 5a of the elastomer pad 5 is expanded to the original state accordingly.

  As shown in FIG. 4, the concrete plate A formed in this way is formed with recesses B at regular intervals, ribs R are formed between these recesses B, and inward at the opening edge of the recess B. The flange F projecting over is formed.

  And such a concrete board A is used, for example as an outer wall material, the surface in which the recessed part B is formed is adhere | attached on a construction base material etc. by attaching, nailing, etc., or it is used as a flooring, and a recessed part The surface on which B is formed is installed on the floor base material by bonding, nailing or the like. Further, two concrete plates A are used by being joined so that the concave portions B of the concrete plates A face each other. In such use, the flange F projecting inward to the opening edge of the recess B reinforces the rib R defining the recess B, increases the rigidity of the concrete plate A, and increases the adhesion area between the members. There are effects such as.

  5 to 7 conceptually show a second embodiment of a molding apparatus for a molded plate according to the present invention. FIG. 5 is a conceptual perspective view of the molding apparatus, and FIG. FIG. 7 is a cross-sectional view showing a state of the elastomer pad when the mold plate is removed from the mold shown in FIG. FIG.

  The forming mold 21 of the forming apparatus 20 of this embodiment is configured by a bottom plate 22 and a side plate 23 erected so as to surround the bottom plate 22. A plurality of elastomer pads 24 are geometrically arranged at predetermined intervals on the inner surface (upper surface) of the bottom plate 22.

  The elastomer pad 24 is made of, for example, elasticity, a slurry-like plate material to be placed on the molding die 21, for example, silicon rubber having a hardness enough to maintain a desired shape against the pressure of the concrete slurry S. An upper part 24a of a substantially regular hexagonal column having a height of about 20 mm and a side length of about 15 mm, and a base part of a substantially regular hexagonal column that is concentric with the upper part 24a and has a height of about 5 mm and a side length of about 10 mm. 24b, and the interior is hollow as shown in FIG.

  The elastomer pad 24 is supported by a cylindrical core member 25 that is bonded and fixed to the bottom plate 22 of the mold 21. The cylindrical core member 25 has a hexagonal base 25a in the lower part, and a hexagonal cylindrical part 25b is erected at the center of the base 25a. The base 24 b of the elastomer pad 24 is bonded and fixed to the outer peripheral surface of the base 25 a of the cylindrical core member 25, and the top inner surface of the upper portion 24 a is bonded and fixed to the upper part of the cylindrical portion 25 b of the cylindrical core member 25.

Further, the molding apparatus 20 includes a deformation means 26 that elastically deforms the elastomer pad 24. The deformation means 26 includes a fluid passage 25c formed in the center of the base 25a of the cylindrical core member 25, a plurality of fluid passages 25d penetrating the peripheral surface of the cylindrical portion 25b of the cylindrical core member 25, and a mold. A fluid passage 27 penetrating the bottom plate 22 of the frame 21, a fluid passage 28 communicating the fluid passage 27 and the fluid passage 25 c of the cylindrical core member 25, and a suction pump 29 connected to the end of the fluid passage 27 And is composed of.
In the embodiment shown in FIG. 5, the ends of the plurality of fluid passages 27 are gathered and connected to one suction pump 29.

  Below, the manufacturing method of the shaping | molding board which concerns on this invention using the shaping | molding apparatus 20 of an above-described structure is demonstrated.

  First, the concrete slurry S is poured into the forming mold 21 of the forming apparatus 20 shown in FIG. The elastomer pad 24 in this state is in a state where the upper portion 24a is swollen by the elastic force of the material. The concrete slurry S contains, for example, fibers such as steel fibers and organic fibers using cement as a base material. In this case, compressed air may be supplied into the elastomer pad 24 to assist in maintaining the shape of the elastomer pad 24 in a swelled state.

  Next, natural curing or steam curing is performed to harden the concrete slurry S.

  Next, the suction pump 29 is operated to remove air in the hollow portion 30 defined by the elastomer pad 24 and the cylindrical core material 25 through the fluid passages 27, 28, 25 c and 25 d. Then, the upper portion 24a of the elastomer pad 24 is reduced as shown in FIG.

  In this state, the concrete plate A is taken out from the forming mold 21. At this time, since the upper portion 24a of the elastomer pad 24 does not bite into the concrete plate A, the concrete plate A can be easily detached from the forming mold 21.

  As shown in FIG. 4, the concrete plate A formed in this way is formed with recesses B at regular intervals, ribs R are formed between the recesses B, and an inner edge of the opening of the recess B is provided. A flange F projecting in the direction is formed.

  And such a concrete board A is used, for example as an outer wall material, the surface in which the recessed part B is formed is adhere | attached on a construction base material etc. by attaching, nailing, etc., or it is used as a flooring, and a recessed part The surface on which B is formed is installed on the floor base material by bonding, nailing or the like. Further, two concrete plates A are used by being joined so that the concave portions B of the concrete plates A face each other.

  In each of the above embodiments, the production of the concrete plate has been described. However, the present invention is not limited to the concrete plate, and may be applied to other molded plates such as a compressed outer structure fiber board, for example. it can.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view conceptually showing a first embodiment of a molding plate molding apparatus according to the present invention. It is sectional drawing which showed the internal structure of the elastomer pad in the shaping | molding apparatus shown in FIG. 1, and has shown the state which laid the slurry-like board | plate raw material. FIG. 2 is a cross-sectional view showing a state of an elastomer pad when removing a mold plate in the molding apparatus shown in FIG. 1. It is the fragmentary perspective view which showed the shaping | molding board shape | molded by the shaping | molding apparatus of the shaping | molding board which concerns on this invention. It is the perspective view which showed conceptually 2nd Embodiment of the shaping | molding board molding apparatus which concerns on this invention. It is sectional drawing which showed the internal structure of the elastomer pad in the shaping | molding apparatus shown in FIG. 5, and has shown the state which laid the slurry-like board | plate raw material. FIG. 6 is a cross-sectional view showing a state of an elastomer pad when removing a mold plate in the molding apparatus shown in FIG. 5.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Molding apparatus 2 Molding frame 3 Bottom plate 3a Guide post 3b Spring 3c Pin insertion hole 4 Side plate 5 Elastomer pad 5a Upper part 5b Base 6 Deformation means 7 Pin 7a Shaft 7b Flange 7c Male screw 8 Operation plate 8a Pin insertion hole 9 Plate moving mechanism 10 Nut 11 Operating shaft 12 Cam 13 Actuator 14 Sprocket 15 Chain 20 Molding device 21 Mold frame 22 Bottom plate 23 Side plate 24 Elastomer pad 24a Upper part 24b Lower part 25 Core material 25a Base 25b Cylindrical part 25c, 25d Fluid passage 26 Deformation means 27, 28 Fluid passage 29 Suction pump 30 Hollow part A Concrete plate (molded plate)
B Recess F Flange R Rib S Concrete slurry

Claims (6)

  A molding die having a bottom plate and a side plate erected from the bottom plate so as to surround the bottom plate, and a hollow, maintaining a desired shape with respect to the slurry-like plate material placed on the molding die And a plurality of elastomer pads arranged on the bottom plate at predetermined intervals, and deformation means for elastically deforming the elastomer pads radially inward with respect to the axis. , Molding plate molding equipment.   The deformation means includes a pin having a head planted in the elastomer pad and having an end penetrating outward from a bottom plate of the mold, an operation plate locking the end of the pin, An operating mechanism for moving the operation plate in a direction away from the bottom plate of the mold, and the head of the pin is moved in the direction of the bottom plate of the mold by the operating mechanism, and the elastomer pad is used as an axis of the operating plate. 2. The apparatus for forming a mold plate according to claim 1, wherein the apparatus is deformed radially inward.   3. The mold molding according to claim 2, wherein the operating mechanism includes a cam disposed between a bottom plate of the molding mold and an operation plate, and an actuator for operating the cam. Plate forming equipment.   The elastomer pad is disposed so as to cover a cylindrical core material planted on the bottom plate, and the deformation means is a suction unit that sucks air from a hollow portion defined between the cylindrical core material and the elastomer pad. The pump according to claim 1, further comprising: a pump, wherein air is sucked from the hollow portion by the suction pump, and the elastomer pad is deformed radially inward with respect to an axis of the elastomer pad. Molding plate molding equipment.   The deformation means includes a plurality of fluid passages penetrating the peripheral wall of the cylindrical core material, a fluid passage formed in the axial center of the cylindrical core material, and a fluid passage formed in the bottom plate of the molding frame, 5. The molding apparatus for a mold plate according to claim 4, wherein the hollow portion of the elastomer pad is communicated with the suction pump through a fluid passage.   Using the molding apparatus for a mold plate according to any one of claims 1 to 5, a step of placing a slurry-like plate body material in the mold frame, and curing the slurry-like plate body material A method for producing a mold plate, comprising: a step of deforming the elastomer pad by the deforming means and demolding a cured plate body from the mold frame.

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