JP6179495B2 - Forming device for molding - Google Patents

Description

  The present invention relates to a formwork apparatus for molding such as a precast concrete panel used for a building outer wall material, and in particular, manufacturing a corner panel having a substantially L-shaped cross section attached to a protruding corner portion of a building outer wall. The present invention relates to a mold apparatus suitable for molding.

  The present applicant has developed and put into practical use an outer wall panel made of lightweight cellular concrete manufactured in advance at a factory by a casting method as an outer wall material for a prefab house. Such an outer wall panel is formed by casting molding material obtained by kneading Portland cement with silica sand, fly ash, magnesia, inorganic fibers, special admixtures, bubble forming agents, etc. into a mold for each product. The When the molding material is placed, the rust preventive reinforcing bar welded in a mesh shape is laid on the inside of the molding mold and integrated. The molding material is steam-cured for a certain period of time in a state where it is placed on the mold, and after curing, the curing reaction is promoted by autoclaving in a high-temperature and high-pressure environment, and exhibits excellent strength. . The cell forming agent kneaded into the molding material generates innumerable closed cells inside the concrete when the molding material undergoes a curing reaction. The closed cell ensures the water resistance and moisture resistance of the outer wall panel, and also improves the fire resistance and heat insulation performance.

  On the front side molding surface of the mold for molding, a fine undulation similar to natural stone or brick is processed in advance, and the front side finished surface of the outer wall panel molded by the molding die is, for example, FIG. As shown in (a) old brick pattern, (b) quarry stone pattern, (c) small edge stacking pattern, (d) sandstone pattern, (e) border pattern, (f) Oya stone scratch pattern A design with a simple texture is given.

  In Patent Document 1, when manufacturing such an outer wall panel, the reinforcing steel frame and the reinforcing steel frame can be accurately positioned inside the molding frame, and the cured outer wall panel is removed from the molding frame. An invention relating to a manufacturing method and a manufacturing apparatus of an outer wall panel that can be easily removed from the mold is disclosed.

  Further, in Patent Document 2, as an improvement plan of the manufacturing method, an outer wall panel in which a undulation pattern is applied to a small end (a rib: a narrow side surface along the longitudinal direction of a plate-like panel) is formed as a molding frame. Discloses a method for removing the mold without difficulty and an invention of a removal jig used therefor.

  FIG. 8 exemplifies a standard wall structure when such an outer wall panel is built in a building frame made of steel frame. The general panel P1 disposed on the flat part of the building outer wall is formed in a long rectangular shape having a width of about several tens of centimeters and a length (height when built) of about 1 to 3 m. On the back side molding surface of the general part panel P1, two reinforcing frames 91 made of lip groove steel are embedded in the concrete in the longitudinal direction of the general part panel P1 (when embedded). It is attached along the vertical direction. And the general part panel P1 is fixed to the building frame by, for example, engaging the dedicated metal fitting 94 attached to the steel pillars 92, 93 of the building frame with the reinforcing frame 91.

  A corner panel P2 having a substantially L-shaped cross section is provided on a protruding corner portion of the outer wall of the building with an appropriate mounting bracket (not shown) (for example, a protruding corner panel mounting bracket disclosed in Patent Document 3 filed by the present applicant). It is built through. The corner panel P2 according to the exemplary embodiment is formed so that two front side finished surfaces orthogonal to each other have substantially equal widths (for example, about 13 to 20 cm), and both the front side finished surfaces have undulations of the same pattern. Design is given.

  The general part panels P1 and P1 are adjacent to each other, and the general part panel P1 and the corner panel P2 are adjacent to each other. Since the deeply carved design pattern is formed on the front side finished surface of the outer wall panel, the sealing material 95 is finished as a bottom joint that fits behind the bottom surface in the undulation of the design pattern.

  FIG. 9 and FIG. 10 show a schematic configuration of a forming mold apparatus 1 that the applicant of the present invention has conventionally used for manufacturing the corner panel P2 as described above. This forming mold apparatus 1 includes a front side mold 2 for forming two orthogonally finished front side finished surfaces of the corner panel P2, and two back sides orthogonal to the front side finished surface. It is configured by combining with a back side mold 3 for forming a finished surface.

  The front side mold 2 has two front side molding surfaces 21 (21a, 21b) orthogonal to each other, with one (21b) being substantially horizontal and the other (21a) being substantially vertical, It is fixed on an appropriate base 11. Each front side molding surface 21 is configured by sticking a mold plate material 211 made of hard urethane rubber or the like to a base plate 212 made of a steel plate, and a deep undulation pattern is processed on the mold plate material 211. .

  The backside mold 3 has two backside molding surfaces 31 (31a, 31b) orthogonal to each other and a small end molding surface 32 on one side continuously extending from one of them. The forming surfaces 31 and 32 are formed smoothly using a steel plate or the like, and an appropriate back side holding member 33 is coupled to the back side thereof. The edge part of the back side holding member 33 is connected to the vicinity of the edge part of the base 11 to which the front side mold 2 is fixed via a hinge 12. With this hinge 12 as a support shaft, the back side mold frame 3 has a closed position (FIG. 9) in which the back side molding surface 31 is opposed to the front side molding surface 21, and the back side molding surface 31 is the front side molding surface. It is held so as to be able to rotate between the open mold position (FIG. 10) greatly separated from 21.

  When the corner panel P2 is formed, as shown in FIG. 11, the reinforcing bar R is temporarily fixed to the inner side of the front side mold 2 and the back side mold 3 is fixed at the closed position, and is held substantially vertically. Then, the molding material C is poured into the inside of the molding apparatus 1 from the upper opening 13 formed between the front side molding surface 21 and the back side molding surface 31 facing each other, and the upper end surface of the opening 13 To the same height. The top surface of the filled molding material C is naturally flattened by the fluidity of the molding material C itself, and this top surface becomes the other small end (rib) on the corner panel P2.

  When filling the molding material C, the entire molding apparatus 1 is used by using a vibrator (not shown) or the like installed below the base 11 so that the molding material C spreads to every corner of the mold. To remove bubbles contained in the molding material C. And after the molding material C hardens | cures, the back side mold frame 3 is opened and a molded article is demolded.

JP 2000-246722 A JP 2001-293717 A JP 2012-092595 A

  In the casting method of the corner panel P2 using the molding apparatus 1 as described above, as shown in FIG. 11, of the two front side molding surfaces 21a, 21b of the front side mold 2 that are orthogonal to each other, In the vicinity of the front side molding surface 21b that is installed substantially horizontally, air bubbles easily escape upward, so that the finished surface molded by the molding surface 21b also has a beautiful finish. However, in the vicinity of the front side molding surface 21a installed substantially vertically, if the level difference of the undulations formed on the molding surface 21a is large, bubbles are difficult to escape upward, and the finished surface after curing has a diameter of 1 to Many pinholes of about 2 mm remain. If the pinhole is left as it is, the appearance of the outer wall will be damaged, so under the present circumstances, after removing the molded product, filling the pinhole by, for example, applying a repair material made of cement paste on the finished surface of the front side Is going.

  In such a casting method, the small end on one side formed by the small end molding surface 32 of the back side mold 3 is smoothly finished with high accuracy, but is formed at the pouring port (the upper opening 13) of the molding material C. The other small end (the top surface of the molding material C to be filled) is left to the natural flattening by the fluidity of the molding material C itself, so it hardens in a rough state that cannot be said to be smooth. To do. However, as shown in FIG. 8, the joint where the outer wall panels are adjacent to each other is a bottom joint in which the sealing material 95 is filled on the back side of the undulations formed on the finished surface on the front side. It is desirable that the range that is not hidden by the sealant 95 at the end (at least the range corresponding to the height of the undulations) is finished with the same level of beauty as the finished surface on the front side. Therefore, at present, repair work is also performed in which a small end on the other side formed at the casting port of the molding material C is polished smoothly using an automatic cutting machine or a grinder after demolding.

  Since the outer wall panel made of precast concrete itself is considerably heavy, the repair work after demolding as described above is very time-consuming and significantly reduces the productivity of the outer wall panel. The molding form disclosed in Patent Document 2 also has two front side molding surfaces that are orthogonal to each other, but a pinhole remains on the front side finished surface that is molded by the vertical front side molding surface. The problem cannot be solved effectively.

  Also, the finished surface that has been polished and repaired after curing is clearly different in texture from the beautifully formed surface from the beginning due to the smooth molded surface, so they are in the corners and joints of the outer wall. If exposed, the appearance of the building will be damaged.

  Therefore, the present invention relates to the mold form for forming a panel having a substantially L-shaped cross section in which the undulation pattern is provided on the two orthogonal surfaces on the front side, including the corner panel P2 as described above. Therefore, the present invention proposes an apparatus configuration in which pinholes hardly remain on the finished surface even when the thickness is large, and the repair work after demolding can be greatly saved.

In order to achieve the above-mentioned object, a forming mold apparatus according to the present invention is a forming mold for manufacturing a panel having a substantially L-shaped cross section in which a design having an undulation is imparted to two finished surfaces that are orthogonal to each other. A frame device comprising a front-side mold, a back-side mold, and a small end pressing mold, and the front-side mold is orthogonal to each other for forming the front-side finished surface. Two front side molding surfaces are provided, and the two front side molding surfaces are machined according to the design,
The two front-side molding surfaces are each installed on a base via a front-side holding member in a state inclined at 40 to 50 degrees with respect to a horizontal plane, while the back-side formwork includes the front-side finished surface. A back side molding surface for molding a back side finished surface opposite to the back side, and a small end molding surface on one side extending from one side edge of the back side molding surface toward the front side. The molding surface and the small end molding surface on one side are integrally coupled via a back side holding member so as to be continuous without a gap, and the back side holding member is hinged to the front side mold, With the hinge as a support shaft, the back side mold frame causes the back side molding surface to face the front side molding surface, and the small end molding surface on one side is in close contact with the one side edge of the front side molding surface. Closed position and the back side molding surface When the back side mold is fixed to the closed position, the front side molding surface is held so that the small end molding surface on one side can be rotated between an open mold position that separates the small end molding surface from the front side molding surface. A molding material can be poured between the front side mold frame and the back side mold frame from an opening formed between the other side edge and the other side edge of the back side molding surface, and the small end presser The mold has a small-end smoothing plate that closes a part of the opening into which the molding material is poured, and the small-end smoothing plate covers a front-side majority of the opening at a position that closes a part of the opening. A width that can be closed and a thickness at which the uppermost edge at the position is equal to or higher than the uppermost edge of the opening, and when the molding material is filled up to the end face of the opening, A panel having a substantially L-shaped cross section as a small end on the side is formed. Adopted to.

  In this invention, the front side mold is mounted on an appropriate base in a posture in which the two front side molding surfaces orthogonal to each other are obliquely upward, so that in the molding material filled in the mold Even in the vicinity of the undulations processed on the front side molding surface, the bubbles smoothly escape upward without being disturbed by the undulations. As a result, the two front side finished surfaces formed by the front side molding surface are both beautifully finished without pinholes, and the repair work after demolding is greatly saved.

  The back side formwork paired with the front side formwork is hinged to the base via an appropriate back side holding member, and is held openably and closably. When the back side mold is fixed at the closed position, the back side molding surface provided on the back side mold is opposed to the front side molding surface, and the small end molding surface on one side provided on the back side mold is the front side. A molding space without a gap is formed in close contact with one side edge of the side molding surface.

  In addition, regarding the cross-sectional shape of the panel shape | molded by this invention, the front side may be provided with some chamfered parts and curved-surface parts in the connection location of two surfaces orthogonal to each other. Similarly to the front side, the back side may be composed of two surfaces that are orthogonal to each other, and a chamfered portion or a curved surface portion is provided at a connection portion (a corner portion viewed from the back side) of the two orthogonal surfaces. Also good. Further, the entire side of the back may be flat, or a recess, a cutout, a hole, or the like for attaching a reinforcing rib, groove, or metal fitting may be appropriately formed. The small ends on both sides that connect the front side and the back side may also be substantially flat surfaces orthogonal to the front side and back side, and ribs, grooves, notches, holes, etc. are appropriately formed on the surface. May be. That is, the panel manufactured according to the present invention has two front side finished surfaces that are orthogonal to each other, an appropriately shaped back side finished surface that is substantially opposed to the front side finished surface, and generally flat small ends on both sides. Therefore, the cross-sectional shape of the panel is described as “substantially L-shaped” for the purpose described above.

In the present invention, the two front side molding surfaces orthogonal to each other are held obliquely upward, but the inclination angles of the two front side molding surfaces are not necessarily equal. Is set within a range of about plus or minus 5 degrees (40 to 50 degrees) with 45 degrees as a reference, depending on the overall shape of the molding apparatus and the specific shape of the undulations .

  The molding space surrounded by the front side mold and the back side mold has fluidity from an opening formed between the other side edge of the front side molding surface and the other side edge of the back side molding surface. Molding material is poured. For this molding material, in addition to conventional lightweight cellular concrete materials, ceramic materials and resin materials with fluidity and curability suitable for casting processes, and kneaded reinforcing fibers etc. A thing etc. can be suitably utilized according to the use etc. of a panel.

  In order to extract the air mixed in the molding material out of the mold, the present invention is further provided with air vent holes at the corners where the back side molding surface of the back side mold and the small end molding surface on one side are connected. The configuration is adopted. If this corner is at the highest position in the back half of the molding space that is formed when the back side mold is closed (the part on the opposite side of the opening into which the molding material is poured), air is vented at this position. By providing the holes, it is difficult for air bubbles to remain on the back side molding surface and the small end molding surface on one side, and the molding material is densely filled to every corner of the inner half of the molding space.

According to this mold apparatus for molding, the end surface of the opening for pouring the molding material into the mold frame becomes the small end on the other side of the molded product. However, since the end face of the opening is provided with an inclination of about 45 degrees with respect to the horizontal plane, the molding material spills out from the end face of the opening even if the molding material is filled up to the full end face of the opening. Therefore, the present invention provides, as a configuration for suitably molding the end face of the opening, the small end pressing mold has a small end smoothing plate that closes a part of the opening into which a molding material is poured, The edge smoothing plate has a width capable of closing the front half of the opening at a position where a part of the opening is blocked, and the uppermost edge at the position is equal to or higher than the uppermost edge of the opening. The structure of having a thickness is adopted.

By setting the cross-sectional dimension of the small end smoothing plate in this way, the majority of the front side at the small end on the other side has a smooth finish that does not require repair, and the non-half part on the back side that requires repair, A simple repair that only polishes the surplus portion that is increased in the cross-sectional shape of a triangle is sufficient.

Furthermore, the present invention provides an additional configuration for suitably molding the end face of the opening, wherein the small end pressing mold is attached to the front side mold in the vicinity of the opening through which a molding material is poured, The small end smoothing plate is hingedly connected to the front side mold by way of a small end presser mold holding member, so that the small end smoothing plate is supported on the end surface of the opening by using the hinge as a support shaft. A configuration is adopted in which the mold is held so as to be able to rotate between a closed mold position where the front half is closed and an open mold position where the entire end face of the opening is opened .

When filling the molding material into the molding material (or immediately after filling), move the small end presser mold frame to the closed position, and close the front half of the opening with the small end smoothing plate. The amount of molding material that spills out can be reduced.

When the small end smoothing plate is formed of a rectangular cross-section plate material made of urethane rubber or nitrile rubber, the degree of adhesion to the end face of the opening of the front side mold is improved over the entire length of the mold, More preferred. Further, when the surface of the small end smoothing plate facing the opening is formed smoothly, at least the majority on the front side of the small end on the other side of the panel formed by the end surface of the opening, The surface is smoothened by the surface of the small end smoothing plate (small end molding surface on the other side). Therefore, at least the front half is not required to be polished or repaired after demolding, and the appearance of the joint where this portion is exposed is improved.

  In the molding form apparatus of the present invention configured as described above, the front side mold is installed on the base in a posture in which the two front side molding surfaces orthogonal to each other are inclined by approximately 45 degrees with respect to the horizontal plane. Therefore, even in the vicinity of the front side molding surface, the bubbles in the molding material filled in the mold can be smoothly moved upward without being disturbed by the undulations processed on the front side molding surface. Exit. Therefore, the two front side finished surfaces formed by the front side molding surface have a beautiful finish without any pinholes, and the labor for repairing after demolding is greatly saved.

  Furthermore, in this mold apparatus for molding, in the configuration in which an air vent hole is provided at a corner portion where the back side molding surface of the back side mold frame is connected to the small end molding surface on one side, the back side molding surface and the small end on one side are provided. Air bubbles are less likely to remain on the molding surface, and the molding material is densely filled into every corner of the molding space.

  Further, in this mold apparatus, a small end pressing mold is attached to the front side mold close to the opening for pouring the molding material, and the end surface of the opening is filled by the small end smoothing plate when filling the molding material. When the front half is configured so as to close the front half, the molding material spilling from the end face of the opening can be reduced, and the front half at the small end on the other side can be smoothly finished. Polishing and repair after mold is further saved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external perspective view of a molding form apparatus according to an embodiment of the present invention in a closed state. FIG. 3 is an external perspective view of the molding form apparatus in an open state. It is sectional drawing of the width direction in the closed mold state of the said mold apparatus for shaping | molding. It is width direction sectional drawing in the open mold state of the said mold apparatus for shaping | molding. It is a width direction expanded sectional view which shows the state which filled the molding material by making the said mold apparatus into a closed state. It is width direction sectional drawing after demolding of the panel shape | molded by the said mold apparatus for shaping | molding. It is the elements on larger scale which show the example of the design pattern formed in the front side finish surface of an outer wall panel. It is a fragmentary sectional perspective view which shows the standard structure in the case of building an outer wall panel in the building frame which consists of steel frames. It is a figure which shows the schematic structure in the closed mold state of the conventional mold apparatus. It is a figure which shows the schematic structure in the open mold state of the conventional mold apparatus. It is a width direction sectional view explaining a problem when a molding material is filled in a conventional mold apparatus.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 5 show the configuration of a forming mold apparatus 10 according to an embodiment of the present invention, and FIG. 6 shows a sectional shape of a panel formed by the forming mold apparatus 10 after demolding. Yes. An exemplary molding formwork apparatus 10 includes a lightweight cellular concrete corner panel (see FIGS. 6 and 8; hereinafter, simply referred to as “panel”) P having a substantially L-shaped cross section that is attached to a protruding corner portion of a building outer wall. This is a forming mold apparatus 10 for manufacturing by a casting manufacturing method.

  The panel P includes two front side finished surfaces Pa, Pa orthogonal to each other, two back side finished surfaces Pb, Pb orthogonal to each other relative to the front side finished surfaces Pa, Pa, and these front side finished surfaces. A small end Pc on one side and a small end Pd on the other side connecting the front side and the back side perpendicular to Pa and the back side finished surface, and a substantially L-shaped fore end formed on both end surfaces in the length direction (see FIG. (Not shown), and the two front-side finished surfaces Pa are given a deeply carved design imitating natural stone or brick. The illustrated mold apparatus 10 is configured by combining a front mold 20, a back mold 30, a small mold 40, and a small end press mold 50.

(Front side formwork)
The front side mold 20 is provided with two front side molding surfaces 201 and 201 orthogonal to each other for molding the front side finished surface Pa of the panel P. The front side molding surface 201 is formed by processing undulations according to the design of the front side finished surface Pa on a template 202 made of a synthetic rubber material having excellent mechanical strength and oil resistance such as urethane rubber and nitrile rubber. Is formed. The template member 202 is attached to an appropriate base plate 203 made of, for example, a steel plate bent to have an L-shaped cross section.

  The front-side formwork 20 is held by a front-side holding member 204 composed of a suitable shape steel or steel plate in a posture in which the long axis (vertical direction when the panel P is installed) is horizontally laid. The front holding member 204 is fixed on an appropriate base 101. The base 101 has a flat table shape, for example, and is placed on an appropriate transport device or the like (not shown) provided on the panel P production line. Below the base 101, a vibrator (not shown) as a vibration device is installed.

  The most important part of the present invention is that the two front side molding surfaces 201 and 201 provided on the front side mold 20 are inclined at an angle of approximately 45 degrees with respect to the horizontal plane and face upward. There is in point to be installed in. However, the detailed shape and member configuration of the front side holding member 204 that holds the front side molding surface 201 are not particularly limited in the present invention as long as the practical strength and stability are not impaired. Further, the inclination angle of the front side molding surface 201 is in the range of about plus or minus 5 degrees (40 to 50 degrees) with 45 degrees as a reference, depending on the overall shape of the molding mold apparatus 10 and the specific shape of the undulations. It may be increased or decreased as appropriate.

(Back side formwork)
The back side mold 30 is provided with a back side forming surface 301 for forming a back side finish surface Pb of the panel P facing the front side finish surface Pa, and from one edge of the back side forming surface 301 toward the front side. An extended small-end molding surface 302 is provided on one side. The back side molding surface 301 and the small end molding surface 302 on one side are formed so as to be continuous without a gap, for example, by bending a steel plate having a smooth surface into a mountain-like shape. On the outside of the steel plate, a back side holding member 303 configured by combining a suitable shape steel material, steel plate or the like is attached, and the back side forming surface 301 and the small end forming surface 302 on one side are integrally formed through this. Are combined.

  In the illustrated form, the back side molding surface 301 is configured by two surfaces orthogonal to each other, like the front side molding surface 201, but at the connection point (the corner portion viewed from the back side) of the two orthogonal surfaces. For example, a surface (chamfered portion) that is inclined with respect to the two orthogonal surfaces, a curved surface having an arc-shaped cross section, or the like may be provided. In addition, each of the two orthogonal surfaces is a flat surface having no irregularities, but a recess, a notch, a hole, or the like for attaching a reinforcing rib, groove, or metal fitting may be appropriately formed on both surfaces or one surface. .

  The back side holding member 303 is connected to the vicinity of one side edge of the front side holding member 204 via a hinge 102 provided in the vicinity of one side edge thereof. With this hinge 102 as a support shaft, the back side mold frame 30 is greatly separated from the closed mold position (FIGS. 1 and 3) where the back side molding surface 301 is opposed to the front side molding surface 201, and the front side molding surface 201. It is hold | maintained so that it can rotate only an appropriate angle (in the example form, about 135 degree | times) between the open mold positions (FIG. 2, FIG. 4) to be made. The small end molding surface 302 on one side of the back side mold 30 is also in close contact with the one side edge in a posture orthogonal to the one side edge of the front side molding surface 201 of the front side mold 20 in the closed mold position. In the position, the front side mold 20 is separated from the one side edge of the front side molding surface 201.

  When the back side mold 30 is set to the closed position, the back side forming surface 301 and the small end forming surface 302 on one side are connected in a mountain shape, and the corners thereof are at the highest position. Air vent holes 304 having a diameter of several millimeters are formed at the corners at appropriate intervals along the major axis direction of the back side mold 30.

(Small formwork)
The fore edge mold 40 is a substantially L-shaped block-shaped member for forming both fore edges of the panel P (both end faces in the length direction of the panel P: not shown), and the fore edge molding surface 401 is formed smoothly. Has been. The fore edge formwork 40 is connected to the vicinity of both ends of the front side formwork 20 via hinges 103 provided on the outside thereof. With the hinge 103 as a support shaft, the fore edge mold 40 has a closed mold position (FIG. 1) in which the fore edge molding surface 401 is orthogonal to the long axis of the front side mold frame 20, and the fore edge molding surface 401 is the front side mold 20 Is held so as to be able to rotate by approximately 90 degrees between the open mold position (FIG. 2) that is tilted outward so as to be parallel to the front side molding surface 201 on one side.

(Small end presser form)
The small-end presser mold 50 is a narrow and narrow opening 104 (this is formed between the other side edge when the back side mold form 30 is fixed in the closed position and the other side edge of the front side molding surface 201. The opening 104 serves as a pouring port for the molding material. The small end smoothing plate 501 is formed using a long and thin rectangular plate having a rectangular cross section made of a synthetic rubber material having excellent mechanical strength and oil resistance such as urethane rubber and nitrile rubber. The length of the plate is about the same as the length of the front side mold 20 and the back side mold 30, the width of the plate is slightly smaller than the width of the opening 104, and the thickness of the plate is about half the width of the opening 104. The surface facing the opening 104 (the small end molding surface on the other side) is formed smoothly.

  The small end smoothing plate 501 is attached to a base plate 503 made of a flat steel plate or the like, and the base plate 503 is coupled to a small end presser form holding member 504 bent in an arm shape, for example. One end of the small end pressing form holding member 504 is connected to the vicinity of the opening 104 in the front side holding member 204 via a hinge 105. With the hinge 105 as a support shaft, the small end pressing mold 50 closes the front half of the end face of the opening 104 (FIGS. 1 and 3), and opens to open the entire end face of the opening 104. It is held so that it can rotate between the mold positions (FIGS. 2 and 4).

(Fixed in the closed mold position)
When manufacturing the panel P, after temporarily fixing a reinforcing bar (not shown) on the inside of the front side mold 20, the mold of each part described above is closed from the open mold state shown in FIGS. 2 and 4. The closed mold state shown in FIGS. 1 and 3 is obtained. Specifically, first, the fore edge form 40 is raised to close both end faces of the front side form 20 in the length direction. Next, the back side mold 30 is rotated so that the back side molding surface 301 is opposed to the front side molding surface 201 of the front side mold 20. Thereby, the small end molding surface 302 on one side in the back side mold 30 is also closely attached to the one side edge in a posture orthogonal to the one side edge of the front side molding surface 201 in the front side mold 20, A forming space for the panel P is formed. The pivoting operation of the back side mold 30 is performed manually. At this time, for the safety of the operation, an appropriate handle member (not shown) or the like is attached to or engaged with the back side mold 30. May be.

  The closed front mold 20 and back mold 30 are fixed to each other using appropriate fixing means. In the illustrated embodiment, the fixed rod 23 configured by, for example, screwing a fastening nut 232 to the end of the steel bar 231 is connected to both ends of the front-side mold 20 via hinges 234. On the other hand, fixed rod receiving portions 24 that can hold the fixing rod 23 and engage the fastening nut 232 are provided at both ends of the back side mold 30. By using the fixed rod 23 to connect the back side mold 30 and the front side mold 20 in the closed mold position, the back side mold 30 and the front side mold 20 are placed between them. They are fixed to each other in a state where the fore edge formwork 40 is sandwiched.

  In this state, between the other side edge of the front side molding surface 201 in the front side mold 20 and the other side edge of the back side molding surface 301 in the back side mold 30, the entire length of both molds is constant. A width opening 104 is formed. The opening 104 serves as a pouring port for the molding material. When the molding material is filled up to the end face of the opening 104, the end face becomes the small end Pd on the other side of the molded panel P.

  However, since the end surface of the opening 104 is inclined by approximately 45 degrees with respect to the horizontal plane, the molding material spills out from the end surface of the opening 104 even if the molding material is filled up to the full end surface of the opening 104. Therefore, at the time of filling the molding material or immediately after filling, the small end pressing mold 50 is rotated to the closed mold position so as to close the lower half (substantially half on the front side) of the opening 104.

  The small end presser mold form 50 rotated to the closed mold position is fixed to the front side mold form 20 by using an appropriate fixing means. In the illustrated embodiment, a plurality of substantially cylindrical support sleeves 251 are attached to the lower surface of the base plate 503 to which the small end smoothing plate 501 is attached at appropriate intervals. The axial length of the support sleeve 251 is slightly smaller than the thickness of the small end smoothing plate 501. Furthermore, a through hole (not shown) that matches the axis of the support sleeve 251 is also formed in the base plate 503.

  On the other hand, the front side holding member 204 in the front side mold 20 is provided with a front side edge flange 205 that projects outward from the other side edge of the front side molding surface 201 perpendicular to the molding surface. The front edge flange 205 is provided so that the upper surface thereof is flush with the end surface of the opening 104 and is continuous with a substantially constant width over the entire length of the front mold 20. The front edge flange 205 is formed with a through-hole 206 that matches the axis of the support sleeve 251 at the closed position of the small end presser mold 50, and a fixing nut 207 is fixed to the lower surface thereof.

  Then, a fixing bolt 253 having a hexagonal long head 252 with a hook is inserted into the through hole and the support sleeve 251 from above the base plate 503, and the male screw portion of the fixing bolt 253 is fixed to the fixing nut of the front side edge flange 205. When fastened to 207, the small end presser mold 50 is fixed to the front mold 20 with a plurality of support sleeves 251 sandwiched between it and the front mold 20.

  Here, since the axial length of the support sleeve 251 is slightly smaller than the thickness of the small end smoothing plate 501, the small end smoothing plate 501 is compressed by the difference dimension, and the other side of the front side molding surface 201 is compressed. It is pressed against the edge with a substantially uniform strength. In this way, the small end smoothing plate 501 made of synthetic rubber having an appropriate thickness is pressed against one side of the opening 104 with a substantially uniform appropriate strength, so that the contact between the opening 104 and the small end smoothing plate 501 is achieved. The contact point can be sealed without a gap over the entire length of the opening 104.

  If comprised in this way, when filling a molding material, it can prevent that a molding material spills below the opening 104. FIG. Moreover, since the small end Pd on the other side of the panel P after molding has a smooth finish that does not require repair, at least approximately half of the front side thereof is exposed to the front side of the sealing material filled in the joint. There is no worry that the beauty will be damaged. In addition, the substantially half portion on the back side that requires repair can be simply repaired by simply polishing the surplus portion Pe, which is increased in a triangular shape in cross section, with an automatic cutting machine or a grinder, and the polished portion. Since it is hidden by the joint sealant, the repair work can be simplified.

  Furthermore, as a detailed configuration for improving the workability when filling the molding material to the full end face of the opening 104 and facilitating the repair after demolding, the width and thickness of the small-end smoothing plate 501 are detailed. The recommended value for is set as follows. That is, as shown in FIG. 5, the width R (substantially effective width facing the opening 104) of the small end smoothing plate 501 can close the front half of the opening 104, more preferably the majority. The thickness T of the small end smoothing plate 501 is set such that the uppermost edge at the closed mold position of the small end pressing mold 50 is equal to or higher than the uppermost edge of the opening 104. In other words, the width R of the small end smoothing plate 501 is ½ or more of the width S of the opening 104, and the total dimension of the width R and the thickness T of the small end smoothing plate 501 is greater than the width S of the opening 104. Is also slightly larger. Such a dimensional design makes it easy to fill the molding material to the full end face of the opening 104 without spilling from the periphery of the opening 104. Moreover, since the majority of the front side of the small end Pd on the other side of the molded panel P can be finished smoothly, the work of polishing the non-half part (surplus part Pe) on the back side after demolding is further enhanced. It becomes easy.

  When filling the molding material, a vibration device (not shown) installed below the base 101 is driven to vibrate the entire molding apparatus 10 and the bubbles contained in the molding material are poured. By pulling upward from the mouth (opening 104) and the air vent hole 304, the molding material is filled into the molding space without any gaps. Then, after curing of the molding material, when the mold is opened in the order of the small end press mold 50, the back mold 30 and the small mold 40, a panel P having a substantially L-shaped cross section is obtained. Since the small end pressing mold 50, the back side mold 30 and the fore edge mold 40 are all hinged to the front side mold 20, the demolding work is easy.

  When such a molding formwork apparatus 10 is used, for example, even in a panel P in which a deep relief pattern of a sculpture of about 10 mm at the maximum is given to the front-side finished surface Pa, the front-side finished surface Pa is subjected to demolding. It can be beautifully and efficiently manufactured with molding quality that requires little repair.

  The illustrated embodiment is merely an example, and the detailed structure and shape of each part of the apparatus can be modified as appropriate within a range in which the same effects can be obtained.

  The present invention is used as a mold apparatus for molding a molded product having a substantially L-shaped cross section by a casting manufacturing method, and is used for manufacturing various molded products without being limited to the use, material, size, etc. of the molded product. Can do.

DESCRIPTION OF SYMBOLS 10 Molding apparatus 101 Base 102 Hinge 103 Hinge 104 Opening 105 Hinge 20 Front side mold 201 Front side molding surface 204 Front side holding member 30 Back side mold 301 301 Back side molding surface 302 Small end molding surface 303 on one side Back side holding member 304 Air vent hole 40 Small form frame 401 Small end forming surface 50 Small end presser formwork 501 Small end smoothing plate 303 Base plate 504 Small end presser form holding member P Panel Pa Front side finished surface Pb Back side finished surface Pc Small end on one side Pd Small end on the other side

Claims (4)

A molding form apparatus for producing a panel having a substantially L-shaped cross-section to which a undulating design is imparted to two front side finished surfaces orthogonal to each other,
Front side formwork, back side formwork , small end press formwork ,
The front side mold is provided with two front side molding surfaces orthogonal to each other for molding the front side finished surface,
The two front side molding surfaces are processed with relief according to the design,
While the two front side molding surfaces are each inclined by 40 to 50 degrees with respect to the horizontal plane, they are installed on the base via the front side holding member,
The back side mold is provided with a back side molding surface for molding a back side finish surface opposite to the front side finish surface, and one side extending from the one side edge of the back side molding surface toward the front side. A small end molding surface is provided,
Both the back side molding surfaces and the small end molding surface on one side are integrally coupled via a back side holding member so as to be continuous without a gap,
When the back side holding member is hinged to the front side mold,
With the hinge as a support shaft, the back side mold frame has the back side molding surface opposed to the front side molding surface, and the small end molding surface on one side is in close contact with the one side edge of the front side molding surface Is held so that it can be rotated between a closed mold position and an open position that separates the back side molding surface and the small end molding surface on one side from the front side molding surface,
When the back side mold is fixed in the closed position, the front side mold and the back side are formed from an opening formed between the other side edge of the front side molding surface and the other side edge of the back side molding surface. Molding material can be poured between the mold and
The small end pressing mold has a small end smoothing plate that closes a part of the opening into which a molding material is poured.
The small end smoothing plate has a width capable of closing the front-side majority of the opening at a position where a part of the opening is blocked, and the uppermost edge at the position is equal to or higher than the uppermost edge of the opening. Formed to have a thickness of
A molding form apparatus configured so that when the molding material is filled up to the end face of the opening, a panel having a substantially L-shaped cross section with the end face as a small end on the other side is molded. In the molding form apparatus of Claim 1 ,
The small end pressing mold is attached to the front side mold in the vicinity of the opening into which the molding material is poured,
The small end smoothing plate is hingedly connected to the front side formwork via a small end presser mold holding member, so that the small end smoothing plate serves as an end surface of the opening. A mold apparatus for molding, which is held so as to be rotatable between a closed mold position for closing the majority of the front side and an open mold position for opening the entire end face of the opening. In the molding form apparatus of Claim 1 or 2 ,
The small end smoothing plate is made of a plate having a rectangular cross section made of urethane rubber or nitrile rubber, and the surface facing the opening is formed smoothly . In the molding form apparatus of Claim 1, 2, or 3 ,
A forming mold apparatus, wherein an air vent hole is provided at a corner portion where the back side forming surface of the back side mold frame is connected to a small end forming surface on one side.