JPH0457168B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is applicable to concrete covers for U-shaped grooves,
Alternatively, it relates to a concrete product forming device useful for forming concrete products such as concrete blocks, and in particular, a device that can continuously and automatically perform operations from pouring concrete into a formwork to releasing it from the mold. be.

<Prior Art> A method is known in which a concrete product is formed, a metal plate is bent into a box shape, and concrete is poured into the mold together with reinforcing bars or alone and hardened.

<Problems to be Solved by the Invention> When molding is performed using this type of metal mold, the mold itself can be easily assembled and fixed to the predetermined molding dimensions during molding, and after molding, Concrete products need to be easily removable.

If the steps from pouring concrete into the formwork to demolding after molding can be carried out continuously and automatically within an integrated device, efficient molding of concrete products can be achieved.

Furthermore, it is desired that the forming operation of the concrete product be performed integrally with the curing of the concrete placed in the concrete formwork.

<Means for Solving the Problems> The concrete product forming apparatus according to the present invention has been proposed in view of the above-mentioned circumstances, and includes a mobile building that is movably disposed on rails, and a mobile building that is movably disposed on rails. A formwork movement line is formed indoors parallel to the rail, and above the formwork transfer line in the movable building there are a formwork lifting device, a formwork loosening device, a concrete product removal device, and a formwork cleaning device. Device,
Formwork tightening device, mold release agent application device inside the formwork, hopper for feeding concrete base material, automatic reinforcing bar setting device,
A vibration device, a concrete surface finishing device, and a formwork unloading device are arranged and installed in sequence according to the formwork moving direction of the formwork transfer line.

<Function> The present invention makes it possible to easily assemble a metal formwork formed by bending a single metal plate to a predetermined assembly size, and also allows the concrete product to be removed from the formwork when the concrete product is taken out from the formwork. Using a formwork device that can easily enlarge the opening of the mold, the process from pouring concrete to demolding after formation can be carried out continuously in a mobile building.

<Example> Next, an example of an example of a formwork device used in the present invention shown in the drawings will be described.

Fig. 1 is a partially expanded exploded plan view showing the formwork components, Fig. 2 is a schematic perspective view showing the state before assembly, Fig. 3 is a schematic perspective view showing the tightened state, and Fig. 4 is a side view. FIG. 5 is a plan view, FIG. 6 is a side view showing an expanded state, and FIG. 7 is a plan view.

In these figures, 1 is a formwork body, which is formed by notching a metal plate such as an iron plate, and in the case of the illustrated example, a front wall 3, a rear wall in the four sides of a bottom plate 2 formed as a rectangular flat plate. section 4, left side wall section 5 and right side wall section 6
are installed in succession.

Each of these side wall portions 3, 4, 5, 6 is provided with folding lines 7, 8, 9, 10 at the boundary with the bottom plate 2, and each of these folding lines 7, 8, 9, 10 It is bent into an L shape and stands upright.

In addition, in the case of the illustrated example, the front and
A bent portion 7 provided at the base of each rear side wall portion 3, 4,
Both end portions of 8, that is, left and right side wall portions 5 and 6
Cuts 7A, 7B, 8A, 8B are formed in the proximal extending direction of each side edge 5a, 5b and 6a, 6b, so that the folds formed at the base of the left and right side walls 5, 6 are Curves 9 and 10 are the front and rear side walls 3,
It is arranged to be formed at a position slightly closer to the inside than each side edge 3a, 3b and 4a, 4b of 4. Therefore, when the side wall portions 3, 4, 5, and 6 are bent and erected, the left side wall portion 5,
The side edges 5a, 5b and 6a, 6b of 6 are pressed against the inner surfaces 3c, 4c of the front and rear side walls 3, 4.

In addition, each of the bent and erected side wall portions 3, 4,
As mentioned above, since the flat metal plates 5 and 6 are bent and erected from the folding lines 7, 8, 9, and 10, the elastic force of the metal plates themselves generates bending reaction force on each side wall. The force that causes 3, 4, 5, and 6 to move outward is maintained.

Next, reference numerals 11, 12, 13, and 14 are reinforcing portions, and in the case of the illustrated example, each one side edge 11a, 12a, 13a, 14a of the thick long metal plate is attached to the outside near the tip of each side wall portion. Attached by welding to the side surface, each of both end portions 11B, 1 of each reinforcing portion 11, 12, 13, 14
1C, 12B, 12C, 13B, 13C, 14
B, 14C are the attached side wall parts 3, 4,
It is arranged so as to protrude from both sides of 5 and 6. In addition, each of the above-mentioned both end portions 11B, 11C, 12
B, 12C, 13B, 13C, 14B, 14C have pin insertion holes 15, 1 formed vertically through them.
6, 17, 18, 19, 20, 21, and 22 are drilled. Of the reinforcing parts, the mounting height positions of the reinforcing parts 11 and 12 attached to the front and rear side walls 3 and 4 are approximately the same height position, and the mounting height positions of the reinforcing parts 11 and 12 attached to the left and right side walls 5 and 6 are approximately the same height position. The installation height position of each reinforcing part 13, 14 is the above-mentioned reinforcing part 1.
1 and 12 are attached at positions shifted upward or downward by their wall thickness. Therefore, both end portions 11B of each reinforcing portion 11, 12, 13, 14,
11C, 12B, 12C, 13B, 13C, 14
The through-holes 15 and 19, 16 and 21, 17 and 20, 18 and 2 are located so that the holes B and 14C are adjacent to each other and overlap each other vertically.
1 and each side wall portion 3, with their axes aligned with each other.
4, 5, and 6 are assembled and installed at predetermined positions.

Next, 23 is a fixing pin, and each of the corresponding pin insertion holes 15 and 19, 16 and 21, 17 and 2
0, 18, and 22, the distal end portion of this pin 23 has a tapered portion 23A, and the remaining proximal end portion fits into each of the holes 15 to 22. This is an equal diameter shaft portion 23B. Therefore, the pin 23 is connected to each hole 1.
5 to 22 is the state in which the equal diameter shaft portion 2 is inserted.
In the state where 3B is fitted, each corresponding hole 15
and 19, 16 and 21, 17 and 20, and 18 and 22 have their axes aligned with each other, and each side wall portion 3, 4, 5, 6 is tightened and fixed in a predetermined position.

On the other hand, in a state where the tapered portion 23A of the pin 23 fits into each of the holes 15 to 22, each hole 1
A gap is maintained between the circumferences of the holes 5 to 22 and the outer circumference of the tapered portion 23A, so that each side wall portion 3,
4, 5, and 6 are bent outward by the gap due to the bending reaction force of the metal plate itself, and the opening side is enlarged.

Therefore, when concrete is to be poured and formed using the formwork apparatus having the above configuration, the formwork 1 is first assembled and tightened to a predetermined assembly size before concrete is poured. The tightening and fixing operation of this formwork is performed using each of the four fixing pins.
Through holes 15 and 19, 16 and 21, 1 corresponding to 3
7 and 20, 18 and 22 are press-fitted, and the equal diameter shaft part 2
3A fits into each of these holes.

Then each of the holes 15 and 19, 16 and 21, 17
and 20, 18, and 22 are in a state where their axes are aligned, and the respective side wall portions 3, 4, 5, and 6 are firmly tightened and fixed. In this state, concrete is poured into the formwork 1 through the opening opening above it, or concrete is poured after reinforcing bars are placed and then cured to harden the concrete.

Next, after the above-mentioned formation, in order to take out the concrete molded product from the formwork 1, each of the holes 15, 19, 1
6 and 21, 17 and 20, and 18 and 22, respectively, and the fixed pins 23 with equal diameter shaft portions 23B fitted in these respective holes, are inserted into each of these pins 2.
A tool or a push-back member of a device (not shown) is pressed against the tip of the tapered portion 23A of No. 3, that is, the lower end in the figure, and each pin 23 is pushed upward in the figure, and the respective holes 15 and 19, 16 and 21, 17 and 20 are pushed upward in the figure. and 18
The tapered portion 23A is fitted within the . Then, the outer periphery of the fixing pin 23, that is, the tapered portion 23
A gap is maintained between each circumference of A and the circumference of each hole 15 to 22, so that each side wall portion 3,
4, 5, and 6 are bent outward by the bending reaction force caused by the bending lines 7, 8, 9, and 10, and are deformed so as to widen the upper part of the formwork 1. Therefore, the concrete molded product and each side wall portion 3, 4, 5, 6 are easily separated,
Since the opening side of the formwork 1 is widened, the concrete molded product can be easily taken out from the formwork 1.

After the molded product has been taken out, the mold 1 is cleaned and then tightened and fixed to a predetermined assembly size in order to be used for molding again.
3 from the upper end and open each hole 15 and 19, 16 and 2.
1, 17 and 20, and 18 and 22, and each pin 23 is fitted and inserted into the hole up to its equiaxial portion 23B, the corresponding holes 15 and 19, 16, 21, 17 and 20, 18, and 22 are in a state where their axes are aligned, and each side wall portion 3, 4,
5 and 6 are tightened and fixed at predetermined assembly positions.

Next, an example of an automated apparatus of the present invention for manufacturing a concrete molded product using the formwork 1 will be described.

FIG. 8 is a diagram illustrating the formwork lifting and unloading device 100,
This device is used to move formwork 1 into which concrete has been poured from a continuous production line to a position on the side of the line, or to install formwork 1 from a position on the side of the line to a position on the line for use in the next manufacturing process. This is the device.

In the illustrated example, only the formwork latching mechanism part of this device 100 is clearly shown, but the entire device is configured to be movable between a position on the line and a position to the side of the line by means of guide rails and moving rollers (not shown). It is something that will be done.

That is, in the illustrated example, the instruction frame 101 formed in a downward U-shape is supported by a moving mechanism (not shown) so as to be movable between a position on the line and a position on the side of the line. In this frame 101, a midway portion of one arm 104 is rotatably supported by a fulcrum shaft 105 on a protrusion 103 protruding from one of the hanging frames 102, and a protrusion 103 is provided that protrudes from the other hanging frame 106. A midway portion of the other arm 108 is rotatably supported on the protruding piece 107 by a fulcrum shaft 109.
Formwork hooking parts 110, 111 extending horizontally are formed at the lower ends of each of the arms 104, 108, and these hooking parts 110, 111 are attached to flanges formed on the periphery of the formwork 1. shaped reinforcement parts 11 and 12
Or, it is designed so that 13 and 14 can be hooked so as to sandwich them from both sides. A link arm 112 is provided at a portion of one arm 104 slightly closer to the lower end than the pivot portion and at an upper end portion of the other arm 108.
A hydraulic cylinder 11 is connected between the upper end of one arm 104 and a projection 113 formed in the middle of the support frame 101.
4 are connected. That is, when the hydraulic cylinder 114 is extended, one arm 104
is rotated counterclockwise in the figure around the fulcrum shaft 105, and the other arm 108 is accordingly rotated clockwise in the figure around the fulcrum shaft 109 via the link arm 112. It's getting old. As a result, the formwork hanging parts 110, 111 provided at the lower ends of each arm 104, 108 are closed so as to be close to each other, and hooked onto the flange-like reinforcement parts 11, 12 or 13, 14 of the formwork 1 described above. It is now possible to stop it. Moreover, contrary to what has been described above, when the hydraulic cylinder 114 is driven to shorten, each of the arms 104 and 108 is moved from the formwork retaining portion 11 at the lower end.
The legs 0 and 111 are opened so as to separate from each other, and are detached from the reinforcing parts 11 and 12 or 13 and 14 of the formwork 1, so that the formwork 1 can be opened. Although the formwork hooking parts 110 and 111 are not necessarily clear from the drawing, since they are formed in a long shape extending in the horizontal direction, the reinforcing parts 11 and 12 of the formwork 1
Or, the state of engagement with respect to 13 and 14 is stabilized.

Next, FIGS. 9 to 11 show an example of a mold clamping device 200 (the same mold clamping device is used) for assembling and clamping the mold 1.

A fixed support frame 201 is supported by a base (not shown). Reference numeral 202 denotes a movable frame, which can be raised and lowered in the vertical direction by a driving means such as a hydraulic cylinder (not shown). In the illustrated example, a top plate 203 and a bottom plate 204 are installed on the top and bottom surfaces of the movable frame 202, and rotatably support four rotation shafts 205, 206, 207, and 208. These rotation axes 205
~ 208, passive gears 205A, 260A, 207A, 208 are located at the same height near the above, respectively.
A is fixed to the drive shaft, and each of these gears 205A to 20
8A is meshed with a drive gear 210 that is driven and fixed to a rotation shaft 209 that is rotated by a motor (not shown). That is, each of the passive gears 205A to 208A is rotated by the drive gear 210 driven by the rotational force of the motor, and each of the rotation shafts 205
-208 are designed to be rotated at the same time in the same mode.

In addition, a rotation transmission mechanism 214 is provided near the lower end of each of the rotation shafts 205 to 208 by means of gears 211, 212, 213, and a chain (not shown) that is meshed and rotated between these gears 211 and 212 and 212 and 213. A pin engaging portion 215 provided at the rotating end and detachable from the pin 23 of the formwork 1 can be rotated. Although only the rotation transmission mechanism 214 provided at the lower end of the rotating shaft 205 is shown in the drawing, a mechanism with the same configuration is provided near the lower end of each of the three rotating shafts 206 to 208. Also provided. That is, the pin engaging portion 214 engages with the four mold clamping pins 23 provided at the four corners of the mold 11, and screws these pins 23 so that the mold 1 can be clamped. There is. Further, when loosening the formwork 1, the pin 23 is screwed back in the opposite manner to the above, so that the formwork 1 can be loosened.

Next, FIGS. 12 to 14 show an apparatus 300 for taking out concrete products from the formwork 1. This take-out device 300 is a device for sucking and releasing a completed concrete product, which has been put into the formwork 1, cured and hardened, from the formwork 1 after loosening the formwork 1. In the example shown,
A movable wheel 302 is attached to the main frame 301, and is configured to be rotated by a motor 303 so as to be movable between a position on the line and a position to the side of the line along a guardrail (not shown).

An elevating frame 305 that is moved vertically by a hydraulic cylinder 304 is disposed and supported below the main frame 301, and a guide rod 306 that is erected from this frame 305 is inserted through a guide hole 307 of the main frame 301. It is adapted to move up and down at a predetermined position. Further, below the elevating frame 305,
A concrete product adsorption section 308 is provided protrudingly using the lower surface 308A as an adsorption surface. This suction part 30
Reference numeral 8 communicates with a compressor (not shown), and by pasting a highly sealing material such as rubber around the periphery of the suction surface, it is possible to suction and suction concrete products. In addition, this adsorption section 308
The guide rod 309 passes through a guide hole (not shown) in the elevating frame 305, and also passes through an insertion hole 310 in the main frame 301 and protrudes upward.
A locking portion (not shown) is provided at the upper end to be locked to the main frame 301 to prevent it from falling off downward. Further, although not shown, a resilient material such as a coil spring is interposed between the elevating frame 305 and the suction part 308, and provides a buffer when the suction part 308 is pressed against the top surface of the concrete product. It is beginning to take effect.

In the above configuration, when the formwork 1 with the formed concrete product still housed in the formwork is sent along the line to a position below this take-out device 300, the formwork 1 is moved along the line as shown in the figure. When the hydraulic cylinder 304 is driven to extend, the suction part 308 is lowered downward, that is, toward the upper surface of the concrete product in the formwork 1, together with the elevating frame 305. When the suction part 308 reaches the upper surface of the concrete product in the formwork 1 and the elevating frame 305 is further lowered, the elastic force of the elastic material interposed between the elevating frame 305 and the adsorbing part 308 described above is absorbed. As a result, the suction portion 308 is strongly pressed against the concrete product. In this state, when a compressor (not shown) is operated and the concrete product is sucked from the suction section 308, the concrete product becomes adsorbed by the suction section 308. Therefore, in this state, when the hydraulic cylinder 304 is shortened and the elevating frame 305 is pulled upward, only the concrete product is moved to the suction part 30, since the formwork 1 is suctioned and fixed by the electromagnet as described above.
8, and is lifted upward while being adsorbed to formwork 1.
It will be taken out from inside and released from the mold. next,
When the moving motor 303 is driven while the concrete product is still adsorbed, and the moving wheel 302 is rotationally driven, the entire main frame 301 is moved along a guide rail (not shown), and is moved from the position on the line to the line. The concrete product can be transported to a lateral position. Then, at this position on the side of the line, the hydraulic cylinder 304 is extended again, the elevating frame 305 is lowered, and the concrete product adsorbed on the suction section 308 lands, and when the compressor is further stopped, the concrete product is transferred to the suction section. 308, and the mold release process can be completed.

Next, FIG. 15 shows a vacuum cleaner 40 for cleaning the inside of the formwork 1 after taking out the concrete product.
It indicates 0.

That is, at the lower end of a rotating shaft 401 rotated by a motor (not shown), a base end is attached to a tightening metal fitting 402.
A rotary brush 404 is formed by attaching a large number of steel wire rods 403, which are fastened together with the tip side as a free end, and which are attached so as to bundle a large number of steel wire rods 403 arranged at several different positions in the axial direction as a whole and arranged around the axis. The brush 404 is movable up and down by a hydraulic cylinder (not shown), and is adapted to remove concrete scum and the like by rotating and sliding in contact with the formwork 1.

Then, the inside of the mold 1 that has been cleaned is subjected to a coating process of applying mold release oil prior to the next molding process, and then the mold clamping device 200 shown in FIGS. 9 to 11 is used. The mold can be clamped by screwing the pin 23 forward.

Then, concrete is poured into the formwork 1 after the above-mentioned oil application for the next molding.

That is, FIGS. 16 to 18 show a concrete charging hopper 500. FIG. This hopper 500 is used to charge a predetermined amount of concrete base into the formwork 1 which has been clamped into a predetermined shape, and weighs the concrete base fed from a mixer (not shown) to form a single concrete product. A suitable amount of concrete base material can be poured into the formwork 1. That is, in the illustrated example, the hopper 500, in which the inner wall surface 501 is directed downward and reduced in size, has a slide opening/closing lid 502 on the lower side.
The lid 502 is opened and closed by a hydraulic cylinder (not shown). Further, a frame 503 extends on one side of the hopper 500, and a balance weight 504 is attached near the tip of the frame 503. Also,
The above hopper 500 and the above balance weight 504
A fulcrum 505 is provided at an intermediate position to be rotatably engaged with a fulcrum member provided on a base (not shown). When the hopper 500 is empty, due to the weight of the balance weight 504,
The balance weight 5 is centered around this fulcrum 505.
The 04 side is lowered and the hopper 500 side is lifted upward.

Further, when a concrete base material is fed into the hopper 500 and a predetermined amount necessary for forming is introduced, the hopper 500 side is lowered around the fulcrum 505 and the balance weight 504 side is lifted upward. When such seesaw movement is detected and the hydraulic cylinder (not shown) is extended, the opening/closing lid 502 opens the lower end opening of the hopper 500, and the concrete base material can be placed into the formwork 1 located below. can. When the inside of the hopper 500 becomes empty after loading, the balance weight 504 side is lowered and the hopper 500 side is lifted up, and by detecting this seesaw movement, the hydraulic cylinder is operated to shorten, and the opening/closing lid 502 can be closed.

As described above, a predetermined amount of concrete base material is placed in the formwork 1, and then reinforcing bars are supplied and arranged within the formwork 1.

Next, Figs. 19 to 21 show reinforcing bar automatic installation 6.
00. This device 600 grasps the lattice-shaped reinforcing bars piled up on the side of the line one by one and supports them so that they are installed at a predetermined position in the formwork 1 on the line, and pours concrete in the previous process. It functions to place reinforcing bars at predetermined positions on the concrete base that is placed in the process.

In the illustrated example, this device 600 includes four movable wheels 602 that are pivotally supported on a support frame 601, and a guide rail 60 that is fixedly disposed on a base (not shown).
3, so that it can freely reciprocate between a position on the line and a position on the side of the line. Additionally, four guide rods 604 are provided below the support frame 601.
is suspended, and an elevating frame 605 is attached so as to be vertically movable. In addition, the above-mentioned elevating frame 6
A hydraulic cylinder 606 is disposed between the support frame 601 and the support frame 601 . Furthermore, four support rods 607 are suspended downward from this elevating frame 605. Each of these rods 607 is supported in pairs on movable rods 609 and 610, which can be moved horizontally toward and away by rotating the operating handle 608. It is now possible to adjust the That is, one moving rod 60
Reference numeral 9 denotes a rotating male threaded shaft 6 integrated with the handle 608.
11 has a female screw threaded part 612, and the other moving rod 610 has a rotating male screw shaft 615 having a female screw thread, which has a passive gear 614 that meshes with a drive gear 613 pivotally connected to the tip of the male screw shaft 611. A portion 616 is screwed together, and when the handle 608 is rotated, the rotating male threaded shafts 612 and 615 are reversed, allowing the movable rods 609 and 610 to be moved relative to each other. In addition, each of the support rods 6
In 07, the midway part is rotatably supported by a fulcrum pin 617, and a recess 6 for hooking the reinforcing bar is provided on one side of the tip.
An actuating arm 619 with 18 is attached to each. Further, a hydraulic cylinder 620 for operation is provided between the base end of each arm and the midway portion of each rod 607. That is, when the hydraulic cylinder 620 is extended, the operating arm 619 is rotated clockwise in FIG. cylinder 6
When driving the rod 20 for shortening, the tip of the arm 619 closes between the rod 607 and the reinforcing bar. Note that each of the hydraulic cylinders 620 is set to operate in a coordinated manner, and each operating arm 619 is configured to open and close at the same time. As a result, the reinforcing bars (not shown) are moved to a position above the lattice-shaped reinforcing bars (not shown) that have been stacked in advance on the side of the line, and the hydraulic cylinder 620 is activated to lower the elevating frame 605, and the tip of the reinforcing bar clamping mechanism 600 is moved to the uppermost reinforcing bar. Let it reach you,
Next, each of the hydraulic cylinders 620 is driven to shorten, thereby closing the actuating arm 619 and hooking the reinforcing bars. Next, the elevating frame 605 is raised and the movable wheel 602 is rotated by a motor (not shown) until it reaches a predetermined position on the line. It is moved along the guide rail 603. Then, the elevating frame 605 is lowered again from above the formwork 1 that has been previously installed on the line, and the operating arm 619 is opened with the reinforcing bars installed at predetermined positions within the formwork 1. Reinforcing bars can be installed inside the formwork 1.

22 and 23 illustrate a concrete surfacing apparatus 700. This device is a device for leveling and finishing the surface of the concrete within the formwork after concrete is poured into the formwork 1. In the illustrated example, this device 700 is configured such that a roller 702 that rolls against a fixed guide rail 701 is driven by a motor (not shown), and supports a support frame 702 so that it can move within a range that covers the formwork area.
It is attached to 03. A vertical rod 704 is attached to this frame 703 so that its height can be adjusted manually, and its vertical position can be freely adjusted.The middle part of a horizontal rod 705 is fixed to the lower end of this rod. A flat synthetic rubber spatula 706 is clamped and fixed by a fixing plate 707 between them. Therefore, by driving the roller 702 and reciprocating it, the spatula 706 can flatten the concrete surface within the formwork.

The devices for carrying out each of the steps described above are housed, for example, in a movable building so that they are arranged in the order of the steps as a whole.

For example, FIGS. 24 to 26 show an example of a mobile building 800. This building 800
is arranged so as to be movable on the line, and inside there are the above-mentioned form lifting device 100, mold loosening device 200, and concrete product removal device 30.
0, formwork cleaning device 400, formwork tightening device 20
0, release agent application device into formwork, concrete base charging hopper 500, reinforcing bar automatic installation device 60
0, a vibration device, a concrete surface finishing device 700, and a formwork unloading device 100 are sequentially arranged in the moving direction.

That is, in the central part, a line to be described later is running, and devices 100, 200, 300, 400, 500,
Support frame part 80 to which 600, 700 etc. are attached
1, side wall frame parts 802 are erected on both side walls, and the whole is integrated by a ceiling frame part 803. A roller 804 is attached to the lower end of the side wall frame portion 802 and rolls on a rail (not shown), making the entire building 800 movable. In addition, the support frame section 801 in the building 800
By setting one side 805 as a curing side and the other side 806 as a product placement side, concrete products can be continuously formed by moving the building 800 back and forth on rails (not shown). .

An example of the configuration of the feed line for the formwork 1 provided within the support frame portion 801 of the building 800 will be described with reference to FIGS. 27 and 28.

That is, the support column 801A of the support frame portion 801
A conveyor driven by a motor 807 is installed between them. In addition, in this example, the above-mentioned pillar 8
Between 01A and 01A, the above-mentioned devices for carrying out each process as shown in the drawings are arranged.

<Effects of the Invention> As is clear from the description of the above embodiments, in the apparatus of the present invention, it is possible to assemble a metal formwork formed by bending a single metal plate to a predetermined assembly size. Using a formwork device that is easy to use and that allows the opening of the formwork to be easily enlarged when taking out the concrete product from the formwork, the process from pouring concrete into the formwork to after forming the concrete product is A series of steps up to mold release can be easily performed in a mobile building.

By setting one side of the formwork transfer line installed along the rails as the curing side and the other side as the product placement side, simply by moving the building back and forth on the rails, the curing position of the concrete can be adjusted. Continuous forming of concrete products can be carried out in conjunction with

Therefore, according to the apparatus of the present invention, concrete products can be efficiently formed.

[Brief explanation of the drawing]

FIG. 1 is a partially exploded plan view showing the formwork components in an exploded manner. Fig. 2 is a schematic perspective view showing the state before assembly, Fig. 3 is a schematic perspective view showing the assembled state, Fig. 4 is a side view of the main part, Fig. 5 is a plan view of the main part, and Fig. 6 is a schematic perspective view showing the state before assembly. 7 is a side view of the main part showing the expanded state.
The figure is also a plan view of the main part. FIG. 8 is a front view of the main parts of the formwork lifting and unloading device. FIG. 9 is a plan view of essential parts of the mold clamping or mold loosening device, FIG. 10 is a right side view, and FIG. 11 is a front view. Figure 12 is a front view of the main parts of the device for taking out concrete products from the formwork, Figure 13 is a plan view, and Figure 14 is the same.
The figure is also a side view. FIG. 15 is a vertical cross-sectional view of essential parts showing the vacuum cleaner inside the formwork. FIG. 16 is a plan view of the concrete charging hopper, FIG. 17 is a front view, and FIG. 18 is a side view. 19th
The figure is a plan view of a main part of the automatic reinforcing bar installation device, FIG. 20 is a front view, and FIG. 21 is a side view.
FIG. 22 is a front view of the main parts of the concrete surface finishing device, and FIG. 23 is a side view of the same. Figure 24 is a plan view of the mobile building, Figure 25 is a side view,
FIG. 26 is a front view as well. FIG. 27 is a plan view showing an example of a formwork moving line device, and FIG. 28 is a partially cutaway side view. 1...Formwork, 2...Bottom plate, 3...Front side wall, 4
...Rear side wall part, 5... Left side wall part, 6... Right side wall part, 11, 12, 13, 14... Reinforcement part, 15,
16, 17, 18, 19, 20, 21, 22...
Through hole, 23...fixing pin, 23A...tapered part, 23B...equal diameter shaft part.

Claims (1)

[Scope of Claims] 1. A mobile building movably disposed on rails, a formwork transfer line formed in parallel to the rails in the mobile building, and the mold in the mobile building. Above the frame transfer line, there is a form lifting device, a form loosening device, a concrete product take-out device, a form cleaning device, a form tightening device, a device for applying mold release agent into the form, a hopper for feeding concrete base material, A concrete product forming device comprising an automatic reinforcing bar setting device, a vibration device, a concrete surface finishing device, and a formwork unloading device, which are arranged in sequence according to the formwork moving direction of the formwork transfer line.