JP4862802B2 - Curved panel manufacturing apparatus and method - Google Patents

Description

  The present invention relates to a manufacturing apparatus and a manufacturing method for a large-sized curved panel, for example, disposed at a corner of an outer wall of a building.

  Conventionally, when manufacturing a large curved panel to be placed at the corner of the outer wall of a building, a shallow box-shaped form with an open inner peripheral surface is used so that the inner peripheral surface is on the upper side. The method of pouring and hardening concrete from the inner peripheral surface side is adopted.

  However, if the formwork is installed so that the inner peripheral surface side is on the upper side, both ends of the formwork are raised, so that the concrete filled in the formwork tends to flow near the center of the formwork. It was necessary to level the concrete with a trowel over a wide area on the peripheral surface side, and much time and labor were required for the trowel finishing by such manual work.

  Therefore, in Patent Document 1, for example, when the mold is movably installed with respect to the base, the mold is disposed so that one end is in a horizontal state, and concrete is poured into the one end to cure to some extent. By placing the formwork so that the other end side is in a horizontal state, pouring concrete into the other end side and integrating it with the concrete on one end side, the concrete filled in the formwork flows near the center of the formwork A method has been proposed in which the above-mentioned iron finishing is unnecessary.

JP-A-9-239708

  However, even in the above-mentioned proposed example, since a shallow box-shaped form with an open inner peripheral surface is used, if the trowel finish of the concrete on the inner peripheral surface side of the mold is not required, the panel thickness is reduced. There is a problem that the dimensional accuracy of the curved panel after molding becomes poor. However, even if the ironing of the concrete on the inner peripheral surface side of the formwork takes a lot of time and labor, the manual ironing still tends to make the panel thickness non-uniform, and dimensional accuracy Deterioration could not be resolved.

  Further, when the curved panel is removed from the mold after molding, if the curved panel is lifted and removed from the mold, there is a problem that stress is concentrated near the center of the curved panel and cracks are likely to occur. In addition, if the mold is disassembled and the curved panel is removed, it takes time and labor and manufacturing efficiency deteriorates.

  Accordingly, an object of the present invention is to provide a manufacturing apparatus and a manufacturing method capable of solving the above-described problems and manufacturing a large curved panel efficiently and with high accuracy.

  In order to solve the above problems, a manufacturing apparatus of the present invention manufactures a curved panel 1 having curved inner and outer peripheral surfaces 2 and 3, and includes a mold 10 for molding a curved panel and the mold 10. A base 50 to be installed, and the mold 10 includes an outer frame member 11 for molding the outer peripheral surface 2 side of the curved panel 1 and an inner frame member for molding the inner peripheral surface 3 side of the curved panel 1. 12, and the outer frame member 11 and the inner frame member 12 are detachably combined so that the concrete is filled so as to flow in the bending direction from the opened one end side to the closed other end side. A mold-shaped molding space 40 is formed, and on the base 50, the mold 10 installed in a state where the inner frame material 12 is on the upper side, one end side of the molding space 40 is raised, and The concrete inflow posture with the other end side approximately horizontal and the front Formwork moving means 52 is provided that can be switched between a mold release posture in which one end side and the other end side of the molding space 40 are at substantially the same level, and the curved surface after molding in the mold release posture. The panel 1 can be lifted together with the inner frame member 12.

  Specifically, the outer frame member 11 includes a pair of rising surfaces 19 and 19 that mold both side surfaces 4 and 4 along the bending direction of the curved panel 1, and the inner frame member 12 includes the curved panel 1. The side surface 5 located between one ends of both side surfaces 4 and 4 along the bending direction is provided with a hanging surface 25 for molding the side surface 5.

  Further, a pattern forming mat 17 for forming an uneven pattern on the outer peripheral surface 2 of the curved panel 1 is attached to the outer frame member 11.

  Further, the inner frame member 12 is provided with engaging members 30... That can be engaged with and disengaged from the reinforcing member 8 embedded in the curved panel 1. Then, before the concrete is poured into the molding space 40, the reinforcing member 8 is engaged with the engaging members 30 of the inner frame member 12 and disposed in the molding space 40.

  Furthermore, the formwork moving means 52 includes support rollers 53, 54, and 55 that support the curved rails 15 formed on the outer frame material 11.

  The manufacturing method of the present invention uses the manufacturing apparatus described above to place the mold 10 installed on the base 50 into a concrete inflow posture and pour concrete from one open end of the molding space 40 to form the molding. The space 40 is filled with concrete, and after the concrete is hardened, the mold frame 10 is set in a demolding posture, and the molded curved panel 1 is lifted together with the inner frame material 12 to be demolded.

  By using the manufacturing apparatus of the present invention, the formwork formed by combining the outer frame material and the inner frame material is set to the concrete inflow posture, and the concrete is poured from one open end side of the molding space, whereby the corner in the molding space is obtained. It can be filled with concrete, and molding is performed while increasing manufacturing efficiency by eliminating the need for a wide iron finish on the inner peripheral surface side, such as when using a formwork with an open inner peripheral surface side. It is possible to increase the dimensional accuracy by making the panel thickness of the subsequent curved panel uniform.

  In addition, the inner frame material bears the stress acting during lifting by lifting the mold frame together with the inner frame material that functions as a demolding jig with the mold frame in the mold release posture. Thus, the curved panel can be easily removed without causing cracks. Furthermore, even when a pattern formation mat is attached to the outer frame material to form a concavo-convex pattern on the outer peripheral surface of the curved panel, the curved panel can be removed smoothly by reducing the catch of the pattern formation mat. Can do.

  Further, by combining the outer frame material having a pair of rising surfaces and the inner frame material having a sagging surface, it is possible to form a mold having a molding space that is open only at one end side. Manufacturing efficiency can be further improved by eliminating almost all the places that require finishing.

  Furthermore, by utilizing the reinforcing member embedded in the curved panel, the engaging member of the inner frame member is engaged with the reinforcing member, so that the curved panel is not chipped or cracked at the time of demolding. Integration of the inner frame material and the curved panel can be achieved.

  Furthermore, before pouring the concrete into the molding space, the reinforcing member is engaged with the engaging member of the inner frame material in advance, so that not only the inner frame material and the curved panel are integrated, but also the molding space. The engaging member can also be used for positioning of the reinforcing member inside, and the member can be effectively used.

  In addition, by supporting the curved rail formed on the outer frame material of the formwork by the support roller on the base side, it is possible to easily and smoothly change the posture of the heavy weight formwork, and workability Can be improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The manufacturing apparatus which concerns on one Embodiment of this invention is for manufacturing the concrete large-sized curved panel 1 arrange | positioned in the outer wall corner part of a building.

  As shown in FIG. 7, the curved panel 1 has curved inner and outer peripheral surfaces 2 and 3, and an uneven pattern is formed on the outer peripheral surface 2. Further, a reinforcing member 8 is embedded in the curved panel 1 by welding a pair of lip-shaped channel steels 7 and 7 to a mesh bar 6 (see FIG. 3). Specifically, the grooved steels 7 and 7 straddle between both end surfaces 4 and 4 along the curved direction of the curved panel 1, and the lip of the grooved steels 7 and 7 is the inner peripheral surface of the curved panel 1. The reinforcing member 8 is embedded in the curved panel 1 so as to be exposed on the third side.

  As shown in FIG. 1, the manufacturing apparatus for manufacturing such a curved panel 1 includes a curved mold 10 for molding a curved panel, and a base 50 on which the mold 10 is installed. .

  As shown in FIGS. 1 and 2, the mold frame 10 is detachably assembled to a steel outer frame material 11 for molding the outer peripheral surface 2 side of the curved panel 1 and the upper side of the outer frame material 11, It is comprised from the inner frame material 12 made from steel which shape | molds the inner peripheral surface 3 side of the curved panel 1. As shown in FIG.

  The outer frame member 11 includes a curved plate 13 corresponding to the outer peripheral surface 2 of the curved panel 1. On the lower surface of the curved plate 13, a plurality of curved rib pieces 14 are protruded at intervals in the longitudinal direction (horizontal direction). And the curved rail 15 is each attached to the front-end | tip part of some rib pieces 14 .... The rib pieces 14 are formed with a pair of stoppers 16 and 16 for sandwiching the rail 15 by projecting both ends thereof. A curved pattern forming mat 17 for forming an uneven pattern on the outer peripheral surface 2 of the curved panel 1 is attached to the upper surface of the curved plate 13. Further, as shown in FIG. 2, curved side frame members 18, 18 are attached to both end portions along the bending direction of the upper surface of the curved plate 13, and the inner surfaces of the side frame members 18, 18 facing each other. Is a pair of rising surfaces 19, 19 for molding both side surfaces 4, 4 along the curved direction of the curved panel 1.

  The inner frame member 12 includes a curved plate 21 corresponding to the inner peripheral surface 3 of the curved panel 1. On the upper surface of the curved plate 21, a plurality of curved rib pieces 22 are projected from the longitudinal direction (horizontal direction) at intervals. And the hook members 23 and 23 for hooking the wire rope 60 for lifting are attached to some rib pieces 22. Further, a side frame plate 24 hanging from the end portion is attached to one end portion along the longitudinal direction (horizontal direction) of the curved plate 21, and the inner surface of the side frame plate 24 is curved of the curved panel 1. It is set as the drooping surface 25 which shape | molds the side surface 5 located between the one edge parts of the both side surfaces 4 and 4 along a direction.

  Further, the curved plate 21 of the inner frame member 12 is provided with a plurality of engaging members 30... That can be engaged with and disengaged from the grooved steels 7 and 7 of the reinforcing member 8 embedded in the curved panel 1. ing.

  As shown in FIG. 3, the engaging member 30 includes a locking piece 31 and a rotating mechanism 32 that rotates the locking piece 31 horizontally. The locking piece 31 is formed in a substantially rectangular shape, and its end portion along the longitudinal direction is longer than the groove portion opening width in the channel steel 7, and the end portion along the short direction is shorter than the groove portion opening width. ing. The rotation mechanism 32 is mounted on a base 33 fixed to the upper surface of the curved plate 21, a rotary shaft 34 that penetrates the base 33 and the curved plate 21, and an upper end of the rotary shaft 34 so as to be rotatable around a horizontal axis 35. And an operation lever 36. A locking piece 31 is fixed to the lower end of the rotating shaft 34. The operation lever 36 has a root portion as a cam and a tip portion formed in a U shape.

  Then, as shown in FIG. 3, when the operation lever 36 is rotated around the horizontal axis 35 and then raised about 90 ° around the rotation axis 34, the locking piece 31 is pushed down. In this state, the operating lever 36 is rotated about 90 ° around the rotation shaft 34 while the locking piece 31 is inserted into the groove portion of the groove steel 7 and the groove steel 7 is applied to the lower surface of the curved plate 21. Further, when it is rotated around the horizontal axis 35 and tilted, the locking piece 31 is lifted in a state of being rotated by about 90 ° and comes into contact with the lower surface of the lip of the grooved steel 7, whereby the engaging member 30 is brought into contact with the reinforcing member 8. As shown in FIG. 4, the reinforcing member 8 is held along the lower surface of the curved plate 21 of the inner frame member 12. In addition, what is necessary is just to operate the operation lever 36 and to be in the state shown in FIG.

  In such a mold 10, a curved molding space 40 is formed by combining the outer frame member 11 and the inner frame member 12 so that the curved plates 13 and 21 face each other vertically. . The outer frame member 11 and the inner frame member 12 are assembled by engaging a plurality of connecting members 39... Attached on the outer frame member 11 side with the inner frame member 12 side.

  The molding space 40 is a space surrounded by the upper surface and the rising surfaces 19 and 19 of the curved plate 13 of the outer frame member 11, the lower surface of the curved plate 21 of the inner frame member 12, and the drooping surface 25. Only one end side along the horizontal direction) is open, and this open portion is a concrete inlet 41.

  As shown in FIG. 1, the base 50 is a mold for switching the attitude of a frame 51 formed by, for example, assembling H-shaped steel in a rectangular frame shape and a mold 10 installed with the inner frame member 12 facing upward. Frame moving means 52.

  The formwork moving means 52 includes a first support roller 53 attached to the upper surface of the frame 51 and a second support roller attached to the upper surface of the frame 51 so as to be positioned above the first support roller 53. 54, and a third support roller 55 attached to the upper surface of the frame 51 via an oblique member 56 made of, for example, H-shaped steel so as to be positioned further above the first and second support rollers 53, 54. It has. A plurality of sets of these support rollers 53, 54, and 55 are provided at intervals in the longitudinal direction (horizontal direction) of the mold 10.

  Then, the rail 15 of the outer frame member 11 in the mold 10 is placed on the first and third support rollers 53 and 55, and the second support roller 54 is brought into contact with the upper surface of the laterally protruding portion of the rail 15. Thus, the rail 15 is supported from above and below by the support rollers 53, 54, and 55, and the mold 10 moves smoothly along the bending direction with respect to the base 50. The movement of the mold 10 is restricted by the stoppers 16 and 16 of the outer frame material 11 in the mold 10 coming into contact with the first and third support rollers 53 and 55, and the movement range of the mold 10 is the minimum necessary. It is limited to the limit.

  As a result, the mold 10 starts up one end side of the molding space 40 having the concrete inlet 41 and has a concrete inflow posture (see FIG. 5) in which the other end side is substantially horizontal. It is possible to switch between a demolding posture (see FIG. 6) in which the one end side and the other end side are at substantially the same height level. Note that a wire (not shown) is stretched on the formwork 10 and the formwork 10 is automatically moved by winding or loosening the wire. Instead, a cylinder or the like may be used, or the mold 10 may be moved manually.

  Next, a method for manufacturing the curved panel 1 using the manufacturing apparatus having the above configuration will be described. First, as shown in FIG. 4, before the concrete is poured into the molding space 40 of the mold 10, the reinforcing member 8 is arranged in the molding space 40 in advance. In this arrangement, the engaging members 30... Of the inner frame member 12 of the mold 10 are engaged with the channel steels 7 and 7 of the reinforcing member 8 so that the reinforcing member 8 is held by the inner frame member 12. ing.

  Next, as shown in FIG. 5, the concrete is poured from the concrete inlet 41 of the molding space 40 with the mold 10 in the concrete inflow posture. As a result, the concrete is filled tightly into the corners of the molding space 40 without any gaps while flowing along the bending direction from the raised one end side of the molding space 40 toward the substantially horizontal other end side. The In this way, by using the mold 10 that is formed by combining the outer frame material 11 and the inner frame material 12 and opened only at one end side, after the concrete is filled, it is only necessary to finish the iron in a narrow range on one end side. A trowel finish in a wide range on the inner peripheral surface side, such as when using a formwork having an open peripheral surface side, becomes unnecessary, and the panel thickness of the curved panel 1 after molding can be made uniform to increase the dimensional accuracy. .

  When the concrete filling operation is completed, the material is compacted by applying vibration by a hand vibe or the like. When the concrete in the molding space 40 is cured, as shown in FIG. 6, the molded curved surface panel 1 is demolded with the mold 10 in a demolding posture. At the time of demolding, the wire rope 60 for lifting is hooked on the retaining member 23 of the inner frame material 12 of the mold 10 so that the molded curved panel 1 is directed upward together with the inner frame material 12. To lift. The molding of the curved panel 1 after the mold 10 is switched from the concrete inflowing posture, that is, the raised state to the demolding posture, that is, the laying state, is performed after the molding while the mold 10 is raised. When the curved panel 1 is lifted, the pattern forming mat 17 of the outer frame member 11 is easily caught on the outer peripheral surface 2 of the curved panel 1, and the curved panel 1 cannot be removed smoothly. This is because chipping or the like occurs in the uneven pattern on the outer peripheral surface of 1. The molded curved panel 1 is demolded together with the inner frame member 12 because the steel inner frame member 12 is made to function as a demolding jig, and the stress acting during lifting is removed. 12, thereby reducing the concentration of stress near the center of the curved panel 1 and preventing the occurrence of cracks in the curved panel 1.

  Thereafter, the engagement of the inner mold frame 12 by the engagement members 30... Is released, and the inner mold frame 12 and the curved panel 1 are separated, whereby a large-sized reinforcing member 8 as shown in FIG. A curved panel 1 is obtained.

  In addition, this invention is not limited to the said embodiment, Of course, many corrections and changes can be added to the said embodiment within the scope of this invention.

It is a sectional side view of the manufacturing apparatus of the curved panel which concerns on one Embodiment of this invention. It is a perspective view of a formwork. It is a perspective view which shows the state before engagement of an engaging member. It is a sectional side view of a manufacturing apparatus when a reinforcement member is arrange | positioned in the space for shaping | molding of a formwork. It is a sectional side view of the manufacturing apparatus which shows a state when filling concrete in the space for shaping | molding by making a formwork into a concrete inflow attitude | position. It is a sectional side view of a manufacturing device showing a state when a curved panel after molding is demolded with a mold frame as a demolding posture. It is a perspective view of a curved panel.

Explanation of symbols

  1 .... curved panel 2 .... outer peripheral surface 3 .... inner peripheral surface 4 .... side surface along bending direction 5 .... side surface 8 .... reinforcing member 10 .... formwork 11 .... outside Frame material, 12 ..Inner frame material, 15 ..Rail, 17 ..Matte for pattern formation, 19 ..Rising surface, 25 ..Sagging surface, 30 ..engaging member, 40. ..Base, 52 ..Formwork moving means, 53, 54, 55 ..Support roller

Claims (7)

An apparatus for producing a curved panel (1) having curved inner and outer peripheral surfaces (2) and (3), a mold (10) for molding a curved panel, and a base (50) on which the mold (10) is installed The mold (10) includes an outer frame material (11) for molding the outer peripheral surface (2) side of the curved panel (1) and an inner peripheral surface (3) of the curved panel (1). ) Side and the inner frame material (12), and the outer frame material (11) and the inner frame material (12) are detachably combined, so that the one end side opened to the other end side closed. A curved molding space (40) for filling concrete so as to flow in the bending direction is formed, and the base (50) is installed with the inner frame member (12) facing upward. The mold (10) is raised at one end of the molding space (40), and the other end is substantially horizontal. Formwork moving means (52) is provided that is switchable between a concrete inflow posture and a demolding posture in which one end side and the other end side of the molding space (40) are substantially at the same level, An apparatus for manufacturing a curved panel, wherein the curved panel (1) after molding can be lifted together with the inner frame member (12) in a demolding posture. The outer frame member (11) includes a pair of rising surfaces (19) and (19) for molding both side surfaces (4) and (4) along the curved direction of the curved panel (1), and the inner frame member ( 12) includes a drooping surface (25) for molding a side surface (5) located between one ends of both side surfaces (4) and (4) along the curved direction of the curved panel (1). The curved panel manufacturing apparatus according to claim 1. The curved panel according to claim 1 or 2, wherein a pattern forming mat (17) for forming an uneven pattern on the outer peripheral surface (2) of the curved panel (1) is attached to the outer frame member (11). Manufacturing equipment. The inner frame member (12) is provided with engagement members (30) that can be engaged with and disengaged from a reinforcing member (8) embedded in the curved panel (1). The apparatus for manufacturing a curved panel according to any one of the above. Before the concrete is poured into the molding space (40), the reinforcing member (8) is engaged with the engaging members (30) of the inner frame member (12) to form the molding space (40). The apparatus for producing a curved panel according to claim 4, which is disposed inside the bracket. The formwork moving means (52) comprises support rollers (53) (54) (55) for supporting curved rails (15) formed on the outer frame material (11). The apparatus for producing a curved panel according to any one of 5. A manufacturing method for manufacturing a curved panel (1) having curved inner and outer peripheral surfaces (2) (3) using the manufacturing apparatus according to any one of claims 1 to 6, wherein said base (50) The mold (10) installed in the concrete is in a concrete inflow posture, and concrete is poured from one open end of the molding space (40) to fill the molding space (40) with concrete, and after the concrete has hardened A method of manufacturing a curved panel, wherein the mold frame (10) is in a demolding posture, and the molded curved panel (1) is lifted together with the inner frame member (12) to be demolded.