JPS60242008A - Method and device for manufacturing concrete board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a manufacturing method and apparatus for manufacturing concrete plates used for gutter covers, floor boards, wall boards, etc. .

(Prior Art) Conventionally, as shown in FIG. 9, concrete plates are formed in a forming space in which box-shaped forms 90 to 90 corresponding to each plate are individually framed and laid horizontally. 91 to 91 are formed, these formworks 90 to 90 are arranged in series, and steel wire rods 92 to 92 are stretched in a continuous manner in the molding spaces 91 to 91 of these formworks 90 to 90. By doing so, multiple concrete plates were obtained at the same time.

(Problems to be Solved by the Invention) According to the above-mentioned conventional technology, a large production space is required, and when pouring concrete, a concrete injection port is installed in each formwork 90 to 90. There was a problem in that it was not suitable for mass production because it had to be moved (pull) a considerable distance.It is an object of this invention to solve this problem.

(Means for Solving the Problems) This invention, which solves the above-mentioned problems, has at least three plate-shaped side frame members arranged in parallel, and these side frame members mutually The bottom surface between them is closed with a bottom frame material, and the front and rear surfaces between the same side frame materials are respectively closed with the front and rear frame materials, so that a plate-like shape surrounded by each frame material is formed and the width is extended in the left and right direction. A plurality of side-by-side molding spaces are formed, and steel wires are stretched appropriately in each molding space, then concrete 1 to 1 is poured into each molding space, and after the concrete hardens, each of the above-mentioned frame materials is placed. This is a method for producing concrete plates 1 to 1, the gist of which is to simultaneously obtain a plurality of concrete plates corresponding to the molding spaces by disassembling and demolding.

In addition, side frame members having a plate shape and having at least three pieces arranged in parallel, a bottom frame member that closes the bottom surface between each side frame member, and front and rear surfaces between each side frame member. It consists of front and rear frame members that respectively close the front and rear frame members, and steel wire rods are installed between the front and rear frame members, so that the frame members are surrounded by each other and the steel wire rods are stretched respectively. This is a concrete plate manufacturing apparatus in which a plurality of molding spaces are formed into plate shapes and arranged side by side in the left and right direction.

(Function) Unlike the conventional method, the method for producing a concrete plate using the above-mentioned means can simultaneously produce a plurality of concrete plates arranged in a plate shape.

Moreover, when manufacturing a plurality of concrete plates at the same time using the concrete plate manufacturing apparatus according to the above-described means, it is possible to construct a framework using a smaller number of frame members than in the past.

(Example) An example of the present invention will be described below with reference to the drawings. First, regarding an example of concrete manufacturing equipment, Figure 1 shows the front of the equipment, and Figure 2 shows the right side of the equipment.
This will be described with reference to FIG. 3, which shows the same plane.

Three bottom frame materials 10 to 10 in the form of strips extending in the front-rear direction
are arranged parallel to each other in the left and right direction, and a square is placed on each front and rear end. 1 form of food 'e; Each frame material 1 before and after 1
1 to 11, 12 to 12 are installed vertically, and the left bottom frame material 10
On the left side of the frame, between the bottom frame members 10 and 10 adjacent to phase n, and on the right side of the right bottom frame member, there are four side frame members 13 in the shape of a rectangular plate.
13 are arranged vertically. That is,
Side frame members 13 to 13 are arranged in parallel, and each side frame member 1
The bottom surfaces between the frames 3 to 13 are closed with the bottom frame materials 10 to 10, and the front and rear surfaces between the frame materials 13 to 13 on the same side are respectively closed with the front and rear frames 011 to 11 and 12 to 12. has been done.

Square columnar partition frame members 14 to 14 are vertically disposed above the rear portions of the bottom frame members 10 to 10, respectively. The front frame members 11-11 and the side frame members 13-13 are assembled with 4 bolts 15.
and are integrally fastened by nuts 1 to 16. Furthermore, the side frame members 13 to 13 and the partition frame members 14 to 14 are integrally fastened together with bolts 17 and nuts 18.

By framing the framework 20 as described above, three molding spaces 19 to 19 are formed in a set shape surrounded by the respective frame members 10 to 13 and lined up in the left and right direction. In this example, the rear part of each molding space 19-19 is closed by the partition frame members 14-14.

The front and rear fixing plates 21 and 22 are attached to the front and rear surfaces of this frame rest 20.
are placed one above the other, two trees each. Front fixing plate 21.
21 is fastened to the previous frame members 11-11 with connecting bolts 23-23. Also, the later fixing plates 22, 22! It is fastened to the rear frame members 12 to 12 with connecting bolts 24 to 24. Between the front frame members 11-11 and the rear frame members 12-12 corresponding to each other, three steel wire rods 25-25 are installed in each molding space 19-19. ing. Thus, the steel wire rod 25 is loosely inserted through the holes or grooves (not shown) of each partition frame member 14.

In addition, the fixing plate 22゜1' behind the left and right side frame members 13, 13
22 and. while. , right and left (D, 9-26, 26 are interposed respectively. Also, each molding space 19-1
Appropriate distribution reinforcement and auxiliary reinforcing bars are arranged in a grid pattern.

Next, a case will be described in which a concrete plate is manufactured using the above-mentioned manufacturing nails.

After concrete is poured into each of the molding spaces 19 and 19, the concrete I- is allowed to harden without curing. When pouring concrete, as shown in FIGS. 4 and 5, a vibrating table 27 is prepared in which a pedestal 29 is movably supported in a swing-like manner on a frame 28, and the pedestal 29 of the vibrating table 27 is (By setting up the framework 20 in a diagonal manner on the platform 29 and vibrating the two sockets with the setting machine 30 attached to it, vibration hardening of concrete can be achieved.

After the concrete hardens, each bolt is 15°17.2
3. Remove each frame member 24 and disassemble each frame member 10 to 14 to remove the mold. In other words, concrete as shown in Figure 6
] - The board 31 is completed when three sheets are oriented. In addition,
If necessary, this concrete plate 31 can be divided into predetermined lengths at cutouts II (not shown).

Next, a case will be described where a pre-stress is applied to the pre-tension method and the concrete board 31 is designated rJA.

- In this case, each of the above-mentioned frame members 10 to 14 is
A predetermined tension force is applied to the steel wire rods 25-25 passing through the framework 20 by forcing the steel wire rods 25-25 in opposite directions using a jacking means (not shown) before concrete is poured. After that, concrete 1
~ is placed in each molding space 19~.19. In addition, after that, steel wire rods 25 to 25 were integrally given the same name to the same concrete as the concrete hardened, and each frame material 10
The above-mentioned tension is released by the disassembly of ~14. As a result, the concrete plate 3 is
1 is given prestress.

Next, a case will be described in which a concrete l-plate to which prestress is applied by the boss tension method is manufactured.

In this case, each of the above-mentioned frame materials 10 to 14 is not framed.
The steel wire rods 25 to 25 that are attached to the framework body 20 are coated with a non-1f [t'1 coating, for example, fluororesin coating 1] in d3 before concrete is poured. ] Concrete is placed in each of the forming spaces 19 to 19. By this, after concrete 1~ hardens, J5
A steel wire 4425-25 is held so as to be axially movable.

After the concrete 1~ has hardened, the steel wire rods 25~25 are moved in opposite directions (--
By applying JI3'l'l, a predetermined tension is applied to the steel wire rods 25-25.

As shown in FIG. 7, fixing fittings 1-33 are fastened to both ends of the steel wire rods 25-25 via bearing plates 32,
Ii'i] The I4 wire 25 is fixed in the tensioned state. As a result, a brace is applied to the plate 31 by the boss tension method.

In addition, when the steel wire rod 25 is a twisted wire rod, the bearing pressure plate 3
2J3 and the fixing nut 1-33, as shown in FIG. 25 can be fixed in the tensioned state.

(Effects of the invention) 1. That is, according to the first invention, unlike the conventional method, multiple concrete plates can be manufactured simultaneously in a root-shaped arrangement, so it can be manufactured in a narrow manufacturing space. In addition to the fact that concrete plates can be manufactured, the distance that the injection port must travel when pouring concrete is shortened because each molding space is close to each other. Therefore, concrete plates can be manufactured rationally and are effective for mass production.

In addition, the concrete plate manufactured using this manufacturing method has a flat front and back surface because the front and back sides of the concrete plate face the side frame material, and a uniform wall thickness with high precision. The same concrete board is made. Also, depending on the size of the concrete board, it is possible to move it after pouring the concrete, so the placement location and curing location for concrete board 1 can be set separately. , which is also suitable for mass production.

[According to the second mentioned invention, the invention was made in 1972 according to the manufacturing method of the first mentioned invention above.
It is possible to rationally manufacture a concrete machine using the 93215 type.

If the IJ invention described in the third IC% is J, then it is possible to rationally manufacture the concrete 1 to board by applying FM to the manufacturing method of the invention described in the first part and using the boss tension method. be able to.

In addition, according to the excuse stated in Part 4, when manufacturing multiple concrete plates at the same time, it is possible to create a framework using fewer frame materials than in the past.
The framework work and σ decomposition work are simplified, and manufacturing efficiency is greatly improved.

[Brief explanation of drawings]

Figures 1 to 8 show one embodiment of the present invention. Figure 1 is a front view of the concrete 1/board manufacturing apparatus, Figure 2 is a right side view of the same, and Figure 3 is the same plane. Figure 4 is a front view of the shaking table, Figure 5 is a sectional view of the same, Figure 6 is a surface view of the concrete plate, and Figures 7 and 8 are cross sections showing the anchoring part of the concrete plate using the boss tension method. 9 are perspective views showing a conventional example. 10...Bottom frame removal 11...Front frame material 12...Rear frame material 13...Side frame material 19...Molding space 25.
...Steel wire rod 31...Concrete plate application Person: Representative of Ibara Concrete Co., Ltd. Person: Ben Sokushi Oka 1) Hidehiko 5 Figure 4 Figure 9

Claims (4)

[Claims] (1) At least three plate-shaped side frame materials are arranged in parallel, and the bottom surfaces between the side frame materials are closed with the bottom frame material, and the front and rear sides of the same side frame materials are The surfaces are respectively closed by the front and rear frame materials, and a plurality of molding spaces are formed in a plate shape surrounded by each frame material and lined up in the left and right direction,
After appropriately stretching steel wire rods in each molding space, concrete is placed in each molding space.
After curing, each of the frame materials is disassembled and demolded, and a plurality of concrete plates 1 corresponding to the molding spaces are simultaneously obtained. (2) Tension is applied to the steel wire before concrete is placed, and after the steel wire is integrally fixed to the concrete by hardening of concrete 1, the tension is released. 2. The method of manufacturing a concrete plate according to claim 1, wherein a prestress is applied to the concrete plates by a pretension method. (3) The above-mentioned steel wire rod is buried in the concrete so that its axis can move, and the steel wire rod is pre-fixed to the concrete plate by the boss tension method, which fixes it under tension after the concrete hardens. A method for manufacturing a concrete plate according to claim 1, which applies stress (=J). (4) Side frame members that are plate-shaped and are arranged in parallel in at least three pieces, a bottom frame member that closes the bottom surface between each side frame member, and front and rear between the mating parts of each side frame member. It consists of front and rear frame members that close the respective faces, and steel wire rods are installed between each of the front and rear frame members, and a plurality of frames are surrounded by U for each frame member and the steel wire rods are stretched respectively. 1. A manufacturing equipment for a concrete board, characterized in that the molding spaces are formed into plate shapes and arranged side by side in the left and right direction.