JPS6146315B2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention is applicable to beams in the civil engineering and construction industries. This invention relates to equipment for manufacturing long concrete products such as girders.

(b) Conventional technology Civil engineering. Beams in the construction industry. When manufacturing long concrete products such as girders, a pair of rails 1, 1 are laid in the workshop as shown in Figure 6 of the drawing, and a portal crane 3 is mounted on these rails 1, 1 with wheels 2, 2. The crane 3 moves the side frame 5, which is divided into sizes that are easy to handle, from the outside 4 of the molding part.
5 are lifted up and carried to the molding section 6, and lowered onto the lower frame 7 at the molding section 6 as shown in FIG. 9, and assembled to the lower frame 7, and each section a is They are connected with bolts, and then the upper side of each section a is joined with two width-determining rods 8 to form a mold, the concrete is formed, and after forming, the formwork is taken apart, and the side frames 5, 5 are connected to each section a. Then, each section is separated from the product by being pried with a tool such as a crowbar, and then carried out to the outside of the molding section 4 by the portal crane 3.

(C) Problems to be Solved by the Invention In the conventional means described above, each section a of the side frames 5, 5 is individually transported from the molding member 4 to the molding section 6, joined on the lower frame 7, and then the side frames 5, 5 are assembled. 5, fix the lower part to the lower frame 7,
When removing the mold after molding the product by joining the upper part with the width-determining rod 8, the mold is taken apart and the side frames 5, 5 are separated into sections a, and then separated from the product using a crowbar, etc. 4 to the outside of the molding part 6.
Items to be transported to, including mold assembly, mold disassembly, and transport. Not only does it take a lot of time and effort to carry out the work, but the width setting rods also get in the way of pouring concrete.
The problem was that the molding efficiency was very poor and the work was highly dangerous.

Therefore, the present invention provides a means for assembling and disassembling molds on a portal bogie that runs on rails.
This completely solves the conventional problems mentioned above.

(d) Techniques for solving the problems The concrete product manufacturing apparatus according to the present invention comprises a pair of rails laid in a workplace, wheels running on these rails, and positioning at a forming part and outside the forming part. a pair of side frames that are movably suspended from the cross members of the portal truck by means of rollers; and a movable part is connected to the side frames by being supported by both vertical members of the portal truck. , a mold in which the side frame is moved onto the lower frame located between the pair of rails by the forward movement of the movable part to perform mold assembly, and the mold is disassembled by returning to the waiting position by the backward movement of the movable part. It is equipped with a frame operation means.

(E) Function In the device according to the present invention, when the wheels of the portal truck located outside the molding section are rotated, the portal truck supports the side frame and moves toward the molding section, and the side frame is moved toward the molding section in the molding section. are positioned at both ends of the lower frame. At this time, when the portal truck is stopped and the movable part of the operating means is moved forward, the pair of side frames approach the lower frame and are combined with it, forming a mold of a predetermined shape. The molding to form the frame is done automatically. Therefore, the product is formed by filling the formwork with concrete, and once the concrete has hardened, it is released from the mold. During this mold release, when the movable part of the operating means is retracted, the side frame is pulled outward and separated from the lower frame and the product, and the mold release and product demolding are also automatically performed. After demolding is completed in this way, when the wheels of the gantry cart are rotated in the opposite direction to the above, the gantry cart leaves the product on the lower frame and moves from the molding section to the outside of the molding section while supporting the side frames. The side frame is also automatically carried out.

(F) Example The present invention is carried out as shown in Figures 1 to 5 of the drawings. In Figure 2, 9 and 9 are a pair of rails that extend from the molding section 10 to the outside 11 of the molding section in the workshop. A lower frame 12 is placed in the molding section 10 in the middle of these rails 9,9.

13 is a portal truck with a pair of vertical members b, b and cross member c
Figure 1. Product 14 shown in Figure 2
The wheels 15 that roll on the rails 9, 9 described above are attached at predetermined intervals to the lower parts of the vertical members b, b, and a part of these wheels 15 is connected to a reducer. It is designed to be rotated in forward and reverse directions by a motor 16, and a scaffolding board 17 is stretched over the cross member c and a handrail 18 is attached around it.

19, 19 is a pair of side frames, and the product 14 described above
These side frames 1
9 and 19 are suspended from the horizontal member c of the above-mentioned portal carriage 13 by means of hanging rollers 20 and 20 on the upper part thereof, as shown in FIG.
The rods 22, 22 of the upper and lower hydraulic cylinders 21, 21, which are attached at a predetermined interval to the longitudinal members b, b in 3, are connected, and the forward movement of the rods 22, 22 causes the side frames 19, 19 to move as described above. The side frames 19, 19 are pressed against both sides of the lower frame 12 to form the mold, and the side frames 19, 19 are separated from the lower frame 12 by the return movement of the rods 22, 22, and are released from the mold.

23, 23 are the above-mentioned hydraulic cylinders 21, 21
It is a support rod that supports the side frames 19, 19 described above, and one end thereof is connected to the vertical member b of the portal truck 13, and a tambuckle 2 for length adjustment is provided in the middle.
4 is provided, and its tip is fastened to a receiver 26 of the side frame 19 by a detachable pin 25 to reinforce the side frames 19,19.

The shafts 27, 27 are attached to the brackets 28, 28, which are attached to the lower frame 12 at a predetermined interval.
Raise this with the presser hook attached to the 9th position and attach the rear retaining hook 30
When the cotter 31 is inserted under the side frame 19, the lower flange 19 of the side frame 19 is pressed down, and when the cotter 31 is removed and folded down, it comes off from the lower flange 19.

Reference numerals 32, 32 denote fixing fittings for the portal carriage 13, which are fixedly placed on the outside of the rails 9, 9 described above, and when the portal carriage 13 is positioned in the molding section 10, the vertical members b, b with these fixing fittings 32, 32
to, fixed with pins or bolts 33, 33,
This is to prevent the side frames 19, 19 from moving uncontrollably during molding.

In the apparatus shown in the embodiment described above, the wheels 15 of the portal truck 13 waiting outside the molding section 11 of the workshop
When rotated by the reducer motor 16 so as to advance toward the forming section 10, the gate-shaped cart 13 holds the pair of side frames 19, 19 and advances toward the forming section 10, and moves the pair of side frames 19, 19. It is positioned on both sides of the lower frame 12. Therefore, the wheels 15 by the reducer motor 16
, stop the portal carriage 13, and fix the lower part of the vertical member b with the fixing fittings 32, 32,
Be careful not to look at the side frames 19, 19, and remove the cylinder 2.
When the rods 1 and 21 are reciprocated, the side frames 19 and 19 move inward, and the lower frame 12 is moved from both sides.
Because it is pushed to the rod 22,2
2, raise the presser hooks 27, 27, and remove the side frame 19,
19 to the lower flanges 19', 19', and also raise the support rods 23, 23 so that their tips are connected to the side frames 19, 19.
If the pins 25, 25 are used to secure the receivers 26, 26 at 9, the pair of side frames 19, 19 will be attached to the lower frame 1.
2 to form a formwork as shown by solid lines in FIG.

Once the formwork is formed in this way, the formwork is filled with concrete, the product is formed and cured. After that, when removing the product from the mold, the support rods 23, 23 are attached to the supports 26, 26. From, presser hook 27,
27 to the lower flange 19', 1 of the side frame 19, 19
After being removed from the product 9', when the rods 22, 22 of the cylinders 21, 21 are retracted, the side frames 19, 19 are automatically separated from the product 14 and the lower frame 12. Therefore, when the wheels 15 of the portal truck 13 are rotated so as to move toward the outside of the molding section 11, the portal truck 13 supports the pair of side frames 19, 19, moves toward the outside of the molding section 11, and the side frames 19 , 19 to the outside of the molding section 11 is automatically performed, and the product 14 is left on the lower frame 12. Therefore, the product 14 is taken out to a product storage area or onto a transport vehicle by a crane, etc., and placed on the lower frame 12. Once the product 14 is gone, the gate-shaped trolley 1 waiting outside the molding section 11
3 to the molding section 10 and positioned on both sides of the lower frame 12, and the cylinders 21, 21 move the side frame 1
9 and 19 are pressed against the lower frame 12 to form a mold, the mold is filled with concrete and the product is formed,
After molding, the cylinders 21, 21 are used to form the side frames 19, 1.
9 is separated from the product 14 and the lower frame 12 to release it from the mold, and the gate-shaped trolley 13 is moved to the outside of the molding section 11. All mold assembly, mold disassembly, and movement can be carried out by the gate-shaped trolley 1.
This can be done automatically and efficiently using 3.

As mentioned above, in the device according to the present invention, when the gantry carriage supports a pair of side frames and its operating means and the gantry carriage is moved to the forming section, the completed side frame is transported to the side of the lower frame. When the operating means is moved forward in accordance with this, the side frame and the lower frame are combined to form a formwork,
Furthermore, when the operating means is moved back, the side frame is separated from the product and the lower frame to break the mold, and when the gate-shaped trolley is moved out of the molding section, the side frame is moved out of the molding section as it is. Since it is carried out, the loading and unloading of the side frame, mold assembly, and mold disassembly operations are performed automatically, requiring almost no manpower, and reducing the required time to less than half.

When the side frames are supported by the operating means and moved back and forth, the pair of side frames are assembled into a mold without a tie pipe.
The top of the formwork is open, making it easy to pour concrete. done quickly.

The upper part of the side frame is suspended from the cross member of the gate-shaped truck by rollers, allowing smooth operation using the operating means. The work is not only easy but also safe. The system is operated reliably and does not cause equipment failure.

It has unique effects such as:

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view showing an example of the implementation of the apparatus according to the present invention. FIG. 2 is a partially cutaway plan view of the same as above. FIG. 3 is a sectional view taken along the line XX shown in FIG. 1. FIG. 4 is a cross-sectional view taken along the Y--Y line shown in FIG. 1. FIG. 5 is a partially cutaway perspective view of a product manufactured by the same device. FIG. 6 is a partially cutaway plan view showing a conventional device. FIG. 7 is a partially cutaway side view showing the molded state of the side frame used in the above device. Figure 8 is an enlarged front view of the same as above. FIG. 9 is an enlarged front view of a conventional device. In the figure, 9, 9 are rails, 10 is a molding part, 11 is outside the molding part, 12 is a lower frame, 13 is a portal truck, b, b are vertical members, c is a horizontal member, 19, 19 are side frames, 20 ,20
are rollers, 21, 21 are side frames, 19, 19 are operating means, and 22, 22 are movable parts.

Claims (1)

[Claims] 1 A pair of rails laid in the workshop, a gate-shaped trolley that runs on wheels on these rails and is positioned between the forming section and outside the forming section, and a cross section of the gate-shaped trolley that can be moved freely by rollers. A movable part is connected to the side frame by being supported by a pair of suspended side frames and both vertical members of the portal truck, and the forward movement of the movable part positions the side frame between the pair of rails. A concrete product manufacturing device comprising a formwork operation means that moves the formwork toward the lower frame side to form the form, and returns the movable part to a waiting position to perform the form disassembly by returning to the standby position.