JPH07117035A - Body member production device - Google Patents

Abstract

PURPOSE:To produce body members of various shapes using a single form by providing a pair of end forms for molding end parts of a body member, a pair of side forms for molding side faces, a bed for supporting the both frames and molding a bottom part, and an adjusting means for adjusting the installation position of the side form to the bed. CONSTITUTION:A pair of end forms 16 are disposed on a bar arranging mount in accordance with the length of a body member 22. Main bars are inserted into holes of the end forms 16. The body member 22 with the bars arranged is moved onto a bed 12 disposed on a travel mount. A movable member 28 of a side form 14 of a form device 10 is adjusted in accordance with the width of the body member 22. The bed 12 is fixed to the side forms 14 by adjusting a pantograph mechanism part 20. A concrete is placed in the form device 10 to a required height. In this manner, the length of the body member 22 is adjusted by the positions of the end forms 1b, the installation position of the side form 14 is adjusted in accordance with the width of the body member 22, and the height of the body member 22 is adjusted by the top end of the placed concrete. Therefore, body members of various kinds can be produced by a single form device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skeleton member manufacturing apparatus for manufacturing skeleton members such as columns and beams made of precast concrete having various shapes.

[0002]

2. Description of the Related Art In order to respond to the recent chronic lack of skilled workers and the social demand for shortening the construction period, precast concrete members are manufactured at fixed factories and site factories and used as building frame members. ing.

Therefore, a molding device for pillar / beam members has been proposed. As shown in FIG. 10 (A), the molding apparatus 1
00 has a bed 102 and a side frame 104. The bed 102 supports the precast concrete member 106 and the side mold 104, and also serves to form the bottom of the precast concrete member 106. Side formwork 10
4 plays a role of molding the precast concrete member 106 in the long side direction. Bed 102 and side form 104
The side mold 104 is directly fixed to the screw hole 108 provided in the bed 102 via the bolt 110. In order to prevent the side mold 104 from being deformed in the out-of-plane direction by the lateral pressure, L
The upper end portion 104A of the side frame 104 is fixed using a restraint material 112 such as letter steel.

Further, since the assembling work and the disassembling work of the formwork are performed manually, in order to save the labor of the assembling / disassembling work when the manufacturing quantity is large, as shown in FIG. 10 (B). In addition, a method of providing the hinge mechanism 114 at the contact point between the side frame 104 on one side and the bed 102 is also adopted.

[0005]

However, since such a molding apparatus for precast concrete members such as beams and columns can manufacture only one type of beam or column, it requires a large number of types of molds or these types of forms. The cost is high because a space for the formwork is required.

In consideration of the above facts, an object of the present invention is to obtain a skeleton member manufacturing apparatus capable of manufacturing skeleton members having various shapes with one precast concrete mold.

[0007]

According to a first aspect of the present invention, there is provided an apparatus for manufacturing a precast concrete skeleton member, comprising a pair of gable form frames for molding a gable portion of the skeleton member, and the skeleton member. A pair of side molds for molding the side surfaces, a bed for supporting the side molds and the end molds to mold the bottom of the skeleton member, and an installation position of the side molds on the bed according to the width dimension of the skeleton member. And adjusting means for adjusting.

The invention according to claim 2 is characterized in that the end form has a reinforcing bar hole into which a reinforcing bar can be inserted, and supports the reinforcing bar.

The invention according to claim 3 is characterized in that a lifting mechanism portion for raising and lowering the bed is provided.

[0010]

According to the skeleton member manufacturing apparatus of the first aspect of the present invention, first, the gable form is installed on the bed at a position of a desired length of the skeleton member. Next, the reinforcing bars of the frame member are arranged. Next, the adjusting means is moved according to the width dimension of the skeleton member to adjust the space between the side molds, and then concrete is poured. At that time, the height of the skeleton member is determined by the position of the top of the cast concrete. After pouring concrete, the skeleton member is completed by curing for a certain period of time. Therefore, it is possible to manufacture many kinds of frame members with one kind of mold.

According to the skeleton member manufacturing apparatus of the second aspect of the invention, after the end form is installed at a predetermined position, the reinforcing bars of the skeleton member are arranged. At that time, insert the reinforcing bar into the reinforcing bar hole of the wife formwork. Therefore, when placing concrete, the gable form is
Can support rebar.

According to the skeleton member manufacturing apparatus of the invention described in claim 3, the bed is lifted by using the lifting mechanism section, and then the side formwork and the bed are fixed to each other, and the bed, the side formwork, and the wife formwork. And form the frame of the frame member and pour concrete. After the casting, when the bed is lowered using the lifting mechanism, the frame member is also removed from the side formwork as the bed descends. Therefore, before pouring concrete, the side formwork and the bed can be smoothly mounted, and after pouring, the formwork can be easily removed from the frame member.

[0013]

EXAMPLE In this example, as shown in FIG. 1, a formwork apparatus 10 for manufacturing a frame member 22 used as a beam will be described. The skeleton member 22 has a shape in which a main bar 22A penetrates the rectangular block-shaped concrete 22B in the longitudinal direction (arrow A direction).

2 to 4 show a formwork apparatus 10 according to this embodiment. This formwork device 10 includes a frame member 2
Bed 12 with a rectangular pedestal 26 forming the bottom of the two
A pair of side molds 14 in the shape of a weir plate for molding the side surface of the frame member 22, a pair of dam molds 16 in the shape of a dam plate for molding the end of the body member 22, and two Support posts 28A, 3
0A (illustrated in FIG. 9) has a support base 18 in which four columns in total are erected in two rows in the long side direction (direction perpendicular to the paper surface) of the frame member 22. As shown in FIG. 4, the columns 28A and 30A together with the support base 18 are U-shaped with the upper side open.

A support plate 26A is fixed to the bottom surface of the table 26, and a pantograph mechanism 20 is provided between the support plate 26A and an elevating plate 26B arranged in parallel below the support plate 26A. As shown in FIG. 3, this pantograph mechanism 20
Is provided with a pair of X cross arms 20A and 20B. The middle portions of these X cross arms 20A, 20B are connected by a pin 20C, and the X cross arms 20A, 20B are connected.
The upper end of B is pivotally supported by the support plate 26A, and the lower end thereof is pivotally supported by the lift plate 26B. These X cross arms 2
A crossing angle of 0A and 20B can be brought into and out of contact with each other by a hydraulic cylinder (not shown) so that the elevating plate 26B can be moved up and down with respect to the supporting plate 26A. Therefore, the lifting plate 2
When 6B is lowered and hits the support base 18, the base 26 is raised. The upper end of the X cross arm 20A and the lower end of the X cross arm 20B slide laterally with respect to the support plate 26A and the elevating plate 26B so that the upper end portions and the lower end portions of the X cross arms 20A and 20B can contact and separate from each other. It is possible.

Brackets 26C and 26D each having a tip bent upward in a substantially triangular shape are installed on the table 26. These brackets 26C and 26D are mounted on the base 2
The triangular portions 26E are located at the corners of the short side portion 6 and are symmetrically arranged with the center portion in the width direction (arrow B direction) of the platform 26 as a boundary. A bracket 26D located on the opposite side of a movable portion 28, which will be described later, is welded to the base 26. On the other hand, the brackets 26C are attached by bolts (not shown) and are movable according to the installation position of the side frame 14.

The gable form frame 16 has a rectangular flat plate-shaped main plate 16A and flanges 16B projecting at right angles around the periphery of the main plate 1.
A reinforcing plate 16C is fixed to the middle portion of 6A. Further, the gable form 16 is provided with a plurality of holes 16D into which the main bars 22A can be inserted into the main plate 16A. This wife formwork 16
In order to fix the end form 16 to the base 26 with bolts, the flange 16B forming the bottom of the
E is provided.

As shown in FIGS. 2 and 9, the support base 18 has a movable portion 28 on one side and a fixed portion 30 on the other side as viewed in the longitudinal direction of the base 26, and is formed in a generally U-shape. ing. The fixed part 30 includes a pair of columns 30A on the bottom part 30B.
Is erected. An auxiliary member 18A is welded to the tops of the columns 28A and 30A. An auxiliary member 14A is welded to the top of the side frame 14. Auxiliary member 18A
And the auxiliary member 14A are connected via a shaft 14B, and the side frame 14 is suspended and supported by the columns 28A and 30A. A trapezoidal box-shaped member 14C is installed below both ends of the short side portion of the side frame 14. The pin 14F pivotally supported to the lower portion of the box-shaped member 14C has a horizontal axis, and is abutted on the connecting corner portion 26G of the triangular portion 26E to the brackets 26C and 26D, so that the frame member 22 of the side form frame 14 is used. It prevents the opening.

In the movable portion 28, columns 28A are erected on a pair of parallel frames 28B arranged in the direction of arrow C, and the frame 28B pivotally supports a wheel 28C on the lower surface and is connected to each other by a connecting piece 28D. ing. A rail 28 connected to the bottom portion 30B is provided below the movable portion 28.
D is laid and wheels 28C are mounted. Therefore, as shown in FIG. 4, the movable portion 28 (the portion indicated by diagonal lines) can move in the left-right direction of the paper (direction of arrow A) by a certain width, and the movable portion 28 can be moved in accordance with the desired width dimension of the frame member 22. The position where the side mold 14 is installed can be adjusted.

FIG. 5 shows an automatic manufacturing line 32 to which the skeleton member manufacturing apparatus according to this embodiment is applied. The automatic manufacturing line 32 includes a reinforcing bar processing / assembling device 34, a conveying device 36, three formwork devices 10, and a concrete supplying device 3.
8, the curing table 40, the cleaning device 42, and the product storage 44 are provided, and the skeleton member 22 can be manufactured under computer control, for example. Further, the belt conveyors 48, 50, in order to move the table 26 on which the frame member 22 is placed,
52, moving devices 54 and 56, and a rail 58.

The reinforcing bar processing and assembling apparatus 34 includes a reinforcing bar conveying apparatus 34A, a reinforcing bar processing apparatus 34B, a reinforcing bar assembling apparatus 34C and a bar arrangement table 34D. The moving device 54 has two rails 54A and a moving table 54B. The moving device 56 includes
There are two rails 56A and a movable table 56B with a caterpillar. The curing table 40 includes belt conveyors 40A, 40B,
It has 40C.

Next, the procedure for manufacturing the precast concrete frame member 22 by applying the frame member manufacturing apparatus of this embodiment will be described.

First, the reinforcing bar conveying device 34A shown in FIG.
A pair of gable form frames 16 are installed at positions of a desired length of the skeleton member 22 on the bar arrangement table 34D installed at. This time,
The gable formwork 16 is installed so as to come to a position inside the pair of side formwork 14 which has not been installed yet, and is arranged so as to form a substantially rectangular formwork with the side formwork 14 which has not been installed yet. To do. Next, using the reinforcing bar transport device 34A, the frame member 22
The main bars 22A of the above are arranged on the bar arrangement table 34D. that time,
The main bar is inserted into the hole 16A of the gable form 16, and the main bar 22A is supported so as not to move even when concrete is not placed. Further, in order to secure the covering thickness of the reinforcing bar, a fixture such as a spacer may be used. The reinforcing bar processing device 34B processes the reinforcing bar 22C of the body member 22 in advance. After arranging the main bar 22A, the reinforcing bar assembling device 3 together with the bar arrangement table 34D in the direction of arrow D using the belt conveyor 48A.
Move close to 4C. Next, an arch-shaped reinforcing bar assembling device 34C is arranged while arranging the reinforcing bar 22C that has been processed in advance on the main bar 22A of the body member 22 on the bar 34D for bar arrangement.
Pass through. After finishing the bar arrangement of the frame member 22, the bar arrangement table 34D is placed on the belt conveyors 50A and 52. Thereafter, the bar arrangement table 34D is moved in the direction of arrow E using the belt conveyor 52 and placed at the position of the belt conveyor 50B. The bar arrangement table 34D circulates between the reinforcing bar processing / assembling device 34 and the belt conveyors 48, 50, 52, and returns to the initial position after the bar arrangement is completed.

Next, the bed 12 is placed on the moving base 54B, and the skeleton member 22 after the bar arrangement is moved thereon by using the carrying device 36. As shown in FIG.
The movable part 28 of the formwork apparatus 10 is adjusted according to the width of the bed 12 so as to match the width D1 of the body member 22. After that, the rails 5 together with the moving table 54B up to the entrance of the stand-by formwork device 10 among the three formwork devices 10 shown in FIG.
4A is moved to load the bed 12 into the formwork apparatus 10. The beds 12 may be used by connecting two beds according to the length of the skeleton member 22 as in the present embodiment shown in FIG.

As shown in FIGS. 3 and 6, the bed 1
When 2 is loaded into the formwork device 10, the pantograph mechanism unit 20 is adjusted to bring the bed 12 into close contact with the lower end of the side formwork 14 and fix the bed 12 and the side formwork 14. that time,
The pin 14F pivotally supported by the box-shaped member 14C has the bracket 2
The bed 1 is abutted against the connecting corners 26G of 6C and 26D.
The side mold 14 is fixed on the upper part 2 and the frame member 22 prevents the side mold 14 from opening. Next, using the concrete supply device 38, concrete is placed on the formwork device 10 to a height of H1. The height H1 of the frame member 22 is determined by the position of the top end when pouring concrete (Fig. 6).
(Illustrated in).

The skeleton member 22 is left in the formwork apparatus 10 until it is hardened to a demoldable strength, and when the skeleton member 22 has a demoldable strength, it is demolded from the formwork apparatus 10. As shown in FIG. 8, the pantograph mechanism 20 is used to lower the platform 26 and move the movable portion 28 away from the fixed portion 30. 8 and 9 show a state in which the frame member 22 is removed from the formwork device 10. When the frame member 22 is removed from the side mold 14, the bed 12 is moved in the direction of arrow D (shown in FIG. 7). In the automatic manufacturing line 32 of this embodiment, the body member 22 is the side mold 1
After being removed from 4, it is moved to the top of the movable table 56B with a caterpillar.

The moving device 56 moves the moving table 56B with the caterpillar on the rail 56A to the entrance of the belt conveyor 40A of the curing table 40, and then the bed on which the frame member 22 removed from the formwork apparatus 10 is placed. 12 is moved onto the belt conveyor 40A. On the curing table 40, the skeleton member 22 is cured for a certain period of time, and after the strength of the concrete reaches a value that can be lifted (120 kg / cm ² ), the transport member 36 is used to move the skeleton member 22 to the product storage 44.
Transport to.

On the other hand, after carrying the frame member 22, the bed 12
Is moved onto the rail 58 by using the belt conveyor 40C and washed by the washing device 42. After the cleaning, the rail 58 is again moved to the top of the moving table 54B. By repeating the above steps, a precast concrete frame member is manufactured.

In order to change the width dimension (direction of arrow B) of the skeleton member 22, the gable form 16 which has the changed dimension.
Prepared separately and used. Further, the mounting position of the bracket 26C on the base 26 is adjusted according to the change in the width dimension of the frame member 22.

[0030]

As described above, in the skeleton member manufacturing apparatus according to the present invention, the length of the skeleton member is adjusted at the position of the end mold, and the installation position of the side mold is adjusted according to the width dimension of the skeleton member. Since the height of the skeleton member is adjusted by adjusting the height of the skeleton at the time of pouring concrete, there is an excellent effect that it is possible to manufacture many kinds of skeleton members with one type of mold.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a mold device and a skeleton member to which an embodiment of a skeleton member manufacturing apparatus of the present invention is applied.

FIG. 2 is a front view showing a formwork device to which an embodiment of the skeleton member manufacturing apparatus of the present invention is applied.

FIG. 3 is a side view showing a state at the time of placing concrete in a formwork apparatus to which an embodiment of the skeleton member manufacturing apparatus of the present invention is applied.

FIG. 4 is a front view showing a bed, a side mold, and a support base in a state in which a frame member is not attached to a mold device to which an embodiment of the structure member manufacturing apparatus of the present invention is applied.

FIG. 5 is a schematic view showing an automatic manufacturing line of a body member to which an embodiment of the body member manufacturing apparatus of the present invention is applied.

6 is a sectional view taken along line 6-6 of FIG.

FIG. 7 is a side view showing a state at the time of demolding of a mold device to which an embodiment of the body member manufacturing apparatus of the present invention is applied.

8 is a sectional view taken along line 8-8 of FIG.

FIG. 9 is a plan view showing a situation at the time of demolding of a formwork apparatus to which an embodiment of the body member manufacturing apparatus of the present invention is applied.

FIG. 10 (A) is a side view showing a conventional apparatus for forming a precast concrete frame member. (B) is
It is a side view which shows the thing which has a hinge mechanism among the shaping | molding apparatuses of the conventional precast concrete frame member.

[Explanation of reference numerals] 10 formwork device 12 bed 14 side formwork 16 gable formwork 18 support base 20 pantograph mechanism part 22 frame member 28 movable part

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Tadaharu Hagiwara 2-5-14 Minamisuna, Koto-ku, Tokyo Inside Takenaka Corporation Technical Research Institute (72) Inventor Kimio Kikuchi 2-chome, Minamisuna, Koto-ku, Tokyo No. 14 Incorporated Takenaka Corporation Technical Research Institute (72) Inventor Hiroshi Kibayashi 2-5-14 Minamisuna, Koto-ku, Tokyo Incorporated Incorporated Takenaka Industrial Technology Research Institute (72) Kenji Shimizu Minamisuna, Koto-ku, Tokyo 2-5-14, Takenaka Corp. Technical Research Institute (72) Inventor Keiki Kukino 8-21-1, Ginza, Chuo-ku, Tokyo Incorporated Takenaka Corp. Tokyo Main Store (72) Inventor Tetsuro Kaji 3-6-2 Nihonbashi, Chuo-ku, Tokyo Asahi Kikai Co., Ltd. (72) Inventor Sakae Kinoshita 598, Monoi, Yotsukaido-shi, Chiba 1 Satsuki Manufacturing Co., Ltd.

Claims (3)

[Claims] 1. A manufacturing apparatus for a precast concrete frame member, comprising: a pair of gable molds for molding a gable portion of the body member; a pair of side molds for molding a side surface of the body member; and the side. A bed for supporting the mold and the end mold and molding the bottom of the body member; and an adjusting means for adjusting the installation position of the side mold on the bed according to the width dimension of the body member. And a frame member manufacturing device. 2. An apparatus for manufacturing a skeleton member according to claim 1, wherein the gable formwork has a hole for a reinforcing bar into which a reinforcing bar can be inserted, and supports the reinforcing bar. 3. The skeleton member manufacturing apparatus according to claim 1 or 2, further comprising a lifting mechanism section that raises and lowers the bed.