KR101102824B1 - Top base concrete block, and the molding frame, and the forming apparatus and forming method thereof - Google Patents

Abstract

PURPOSE: A top base concrete block is provided to separates from a molding frame without curing process, thereby increasing productivity remarkably according to continuous manufacturing. CONSTITUTION: A molding frame for a top base concrete block comprises a body part(120), a connection groove(130), a separation unit, and a fixing unit for located reinforcing bar. In the body part, a plurality of molding parts(110) are arranged to be near each other. The connection groove is formed in the joint of the neighbored molding parts, and connects the neighbored molding parts. The separation unit combined with the connection groove attachably/detachably. The separation unit is formed to symmetrical with the corresponding portion of the top base concrete. The fixing unit for located reinforcing bar is installed inside of the molding part, and fixes a located reinforcing bar perpendicularly on the molding part.

Description

Top base concrete block, and the molding frame, and the forming apparatus and forming method

The present invention relates to a top-type concrete foundation block, a molding frame thereof, and a molding apparatus and method using the same, and more particularly, to manufacturing a top-type concrete foundation block having a reinforcing effect of soft ground during construction and civil engineering work. In order to reduce the manufacturing cost and significantly increase the productivity of the expanded concrete foundation block by continuously manufacturing the expanded concrete foundation block by removing it from the forming mold immediately after molding without curing, it is possible to increase the productivity of one unit or a plurality of molds in one mold. The present invention relates to a top-type concrete foundation block capable of producing an aggregate top-type concrete foundation block, a molding frame thereof, and a molding apparatus and method using the same.

Top-type concrete foundation block (hereinafter referred to as "top-type concrete foundation block"), which is used for reinforcing the rigidity of the ground by distributing the load in the soft ground, has a top top formed in a conical shape, and the bottom end is sharply formed. It is composed of a pile portion protruding downward in the center of the upper top portion has a top shape as a whole.

The top-type concrete foundation blocks having such a structure are each formed one by one and are arranged to be connected to each other on the ground, or are installed on the ground by being formed in aggregate so that a plurality of them are connected to each other in a factory manufacturing process. The technique for installing on the ground is disclosed in Patent Registration No. 10-0414401.

The manufacturing method of the top-type concrete foundation block is divided into on-site casting method and factory production method. On-site casting method is to pour the ready-mixed concrete into the top-type formwork made of plastic and to cure curing process. Is manufactured and constructed as a unit, and the factory manufacturing method is manufactured by pouring ready-mixed concrete into a mold formed so that a top-type concrete foundation block is formed in one unit or a plurality of units are formed by steam curing and demoulding.

However, in the conventional method of manufacturing a top-type concrete foundation block, in the case of the in-site casting method, the plastic formwork is embedded in the soft ground by using disposable plastic formwork, which pollutes the environment, and the price is high, and the formwork and reinforcing the reinforcing bars are assembled. There was a problem such as poor workability due to the need for the process and the concrete curing period.

In the case of the factory manufacturing method, since a molding die formed according to the number of units to be molded should be used, that is, when forming a single unit, four molds each having a mold-type concrete foundation block-type molding part are formed. In the case of forming the connected aggregate, the required quantity according to the shape by using a wet ready mixed concrete into the forming part of the forming mold by using a forming mold made so that the upper adjacent portions of the four top-type concrete foundation block-shaped forming parts are connected to each other. As many molds are needed, various types of molds such as 1, 4, 6, 8, etc. are required depending on the shape of the top-shaped concrete foundation block. It costs a lot of equipment investment for the initial production of mold, and after curing It takes a long time to recover the mold and reuse it by demolding, and it is necessary to dismantle and assemble several molds. There was a limited problem per unit time.

An object of the present invention for solving the above problems is to provide a molding apparatus for manufacturing all of the unit or various number of assembly-top concrete foundation block using one molding frame, and after molding without curing process from the molding apparatus It is to provide an apparatus and method for manufacturing a top-type concrete foundation block to separate the top-type concrete foundation block to reduce the manufacturing cost of the top-type concrete foundation block and to improve the productivity.

A feature of the present invention for achieving the above object is formed in the body portion is formed adjacent to each other, the forming portion formed adjacent to each other formed part of the top-shaped concrete base block shape connected to the upper top portion and the lower pile portion Including a connecting groove for allowing adjacent molding parts to communicate with each other, a separator that is detachably fastened to the connecting groove, and a position reinforcing bar fixing part installed inside the molding part to fix the position reinforcing bars installed vertically to the molding part. It is to provide a molding frame that is configured, so that the unit or aggregate is formed depending on whether or not the separator is installed.

On the other hand, the forming mold is installed so as to be rotatable in the support frame, a lift table is disposed below the forming mold, the spinning process of the forming mold on the upper surface side of the top-type concrete base block of the forming mold Supports to prevent the detachment of the top-type concrete foundation block is installed in the detachable.

And, another feature of the present invention, forming the mold assembly step (S1) for selectively attaching the separator to the connecting groove according to the shape of the top-type concrete foundation block to the forming mold in order to manufacture the top-type concrete foundation block; Reinforcement assembly step of fixing the reinforcement to the reinforcing reinforcing part and connecting the fixed reinforcing bar to the fixed reinforcing parts of the forming parts connected to each other without having to install the separator according to the number of assemblies (S2); Compounding and mixing step (S3) of injecting the bi-beam mortar mixed in a predetermined mixing ratio into the molding unit; Forming step (S4) for pressing or surface treatment to remove the rough surface of the top surface of the top-type concrete foundation block and maintain the flatness while vibrating the forming mold, and to rotate the forming mold 180 degrees Rotating and demolding step (S5) to be demolded by the self-weight base block, and steam curing step (S6) to cure the deformed hardened top-type concrete base block in the curing room; in the manufacturing method comprising a.

On the other hand, in the blending and mixing step (S3), by weighing 15 to 25% by weight of cement as a binder based on the total weight, 25 to 50% by weight of aggregates of 25 mm or less of aggregate and 25 to 50% by weight of sand for 1 to 5 minutes Mix and mix 1 ~ 5 minutes with 0.1 ~ 3% by weight of water reducing agent, admixture, and slump as '0' so that the shape of the top-type concrete foundation block can be maintained when demolding the hardened concrete. The phosphorus bibolite mortar is prepared.

Then, a predetermined amount of the bibimb mortar prepared in the molding step (S4) is added by a predetermined amount, and in order to improve the fillability of the bibimb mortar, a low frequency vibration of 3,200 ± 200rpm in the beginning and a high frequency vibration of 4,500 ± 200rpm in the later stage are sequentially 1 to 5 minutes by molding, and to form a rough surface and the flatness of the top surface of the top-shaped concrete foundation block after molding, characterized in that the surface treatment of the top surface of the top-type concrete foundation block by pressing plate or surface treatment .

In addition, after the surface treatment in the rotating and demolding step (S5), the support is fixed to the upper surface of the molding die, the molding frame and the support is rotated 180 degrees in this process to lift the lower lift table in close contact with the support Then, when the fixed state of the mold and the support is released, the lift table is gradually lowered, and the hardened top-shaped concrete foundation block formed on the support is demoulded by its own weight.

In addition, the curing step (S6) is characterized in that the curing step consisting of the stationary step, the temperature rising step, the isothermal step, and the temperature reduction step of the solidified top-type concrete foundation block put into the curing room for 2 hours or more.

According to the present invention configured as described above in manufacturing a top-type concrete foundation block in a factory production type, it is possible to produce a top-shaped concrete foundation block of various shapes such as one unit or four aggregates, six aggregates, eight aggregates with one molding frame In this way, the basic work time and cost and manpower for preparing the mold is greatly reduced, and the disassembly and assembly of the separate mold is unnecessary in the manufacturing process, thereby reducing the manufacturing cost.

In addition, since the direct-type molding apparatus, that is, using a molding apparatus that directly separates the top-type concrete foundation block from the molding frame without curing after molding, there is an effect of dramatically increasing productivity by shortening the process cycle according to continuous production.

1 is a perspective view of a molding apparatus according to the present invention
Figure 2 is an exploded perspective view of Figure 1
3 is a front view of a demoulded by rotating 180 ° of FIG.
Figure 4 is a view showing the mold structure of the present invention
Figure 5a is a perspective view of a one-unit molding frame shape and molded one-unit top-type concrete foundation block by assembling the separator according to the present invention
Figure 5b is a perspective view of the four-unit molding frame shape and molded four-assembly top type concrete foundation block by assembling the separator according to the present invention
Figure 5c is a six-assembly molding frame shape and the molded six-assembly top type concrete foundation block perspective by assembling the separator according to the present invention
Figure 5d is a perspective view of the eight-assembly molding frame and molded eight-assembly top type concrete foundation block according to the present invention
Figure 6 is a process diagram showing a method of manufacturing a direct-type top type concrete foundation block according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail specific and preferred embodiments of the present invention.

Top type concrete foundation block molding apparatus of the present invention is a molding frame 100, the support frame 200 is installed so that the molding frame 100 is rotatable in Figures 1 to 3, The support table detachably attached to and removed from the lift table 300 disposed below and the top-shaped concrete foundation block upper surface side upward surface of the forming mold 100 to prevent separation of the top-shaped concrete foundation block during the rotation of the forming mold 100. And 400.

In the above configuration, as shown in FIGS. 4 to 5D, the forming mold 100 includes a body 120 in which a plurality of forming portions 110 having a top-shaped concrete foundation block shape are disposed adjacent to each other, and an adjacent forming portion ( 110 is formed in the portion that is connected to each other, the connecting groove 130 is formed so that the adjacent forming unit 110 is in communication with each other, is detachably fastened to the connecting groove 130 so that both sides correspond to the shape of the top-shaped concrete foundation block Including the formed separator 140, the position reinforcing bars 160, 170 installed inside the forming unit 110 to fix the position reinforcing bars 150 installed perpendicular to the forming unit 110 It is composed.

In the above position reinforcing fixing parts 160, 170 is formed to correspond to the shape of the bottom end of the top-shaped concrete foundation block is inserted into the lower end of the lower end is formed through the forming section 110 and the first position reinforcement on the inner peripheral surface The shoe 160 is formed with a fastener 162, and the collar is formed including a collar 170 is inserted into the upper inner peripheral surface of the upper portion of the pile-shaped concrete foundation block and the second position reinforcing steel fixture 172 is formed on the inner peripheral surface, The lower end of the forming unit 110 is formed with a step (112) for preventing the departure of the shoe 160.

And, using the forming mold 100 can produce a top-shaped concrete base block of various shapes, such as one unit or four aggregates, six aggregates, eight aggregates, in the embodiment of the present invention, the top-type concrete of the maximum eight aggregates Basic block 540 can be manufactured.

To this end, the molding die 100 includes eight molding parts 110, and the molding die 100 for the one-unit top-type concrete foundation block 510 has ten separators 140 as shown in FIG. 5A. A, the forming mold 100 for the four-unit top type concrete foundation block 520 has two separation holes 140 as shown in FIG. 5B, for the six-unit top type concrete foundation block 530 and two single unit top types. Forming mold 100 for the concrete foundation block 510 is configured to be coupled to the three separators 140, as shown in Figure 5c, each separator 140 is inserted into the connecting groove 130 and assembled with bolts. In the forming mold 100 for the top-type concrete foundation block 540 of the eight aggregates, the separator 140 is not installed as shown in FIG. 5D.

Meanwhile, reference numerals 192 and 194 in the drawings indicate a fixing means for fixing the support member 400 and the molding die 100. Reference numeral 192 denotes a fixing clip having a coupling groove formed therein, and reference numeral 194 indicates a support member 400. It is a fixed protrusion that is inserted into the coupling groove 192 by moving forward / backward by a fixed hydraulic device (not shown), in addition to those skilled in the art can implement the fixing means in various ways, so the description of other examples will be omitted.

A method of manufacturing a top-type concrete foundation block using a molding apparatus having such a configuration will be described below.

The method of manufacturing a spinning top concrete foundation block according to the present invention is largely, as shown in FIG. 6, a molding mold assembly step S1, a work reinforcing bar assembly step S2, a compounding and mixing step S3, and a molding step ( S4), the rotation and demolding step S5, and the steam curing step S6 are continuously made.

One. Molding  Assembly stage

Forming mold assembly step (S1) according to the present invention, one unit or four aggregates, six aggregates, eight aggregates, one forming die 100 having eight forming parts to produce a top-shaped concrete foundation block of various shapes such as As shown in FIG. 5A, the one-unit molding die 100 includes 10 separators 140, the four-piece molding mold has two separation nozzles 140 as shown in FIG. 5B, and the six-unit molding mold includes: As shown in FIG. 5C, three separation holes 140 are coupled to each other, and each separation hole 140 is inserted into the connection groove 130 and assembled with bolts.

2. Assembly of Reinforcing Bars

The fabricated rebar assembly step (S2) according to the present invention is to ensure the shape strength of the stiff-top concrete foundation block and the structural strength stability of the stiff-top concrete foundation block, the fabricated rebar, Figure 5a to Figure As shown in 5d, the rebar 150 and the load-bearing bar 180 are horizontally connected to the location rebar 150, and the location rebar 150 is fixed by the shoe 160 and the collar 170.

Inside the mold 100 of the molding apparatus, the one-piece top-type concrete foundation block is arranged with eight reinforcing bars 150 assembled with the shoe 160 and the collar 170 as shown in Figure 5a, The top-type concrete foundation block inserts eight position reinforcement bars 150 assembled by the shoe 160 and the collar 170 as shown in FIG. 5B, and cuts or clips on the bent groove of the upper position reinforcement 150. And the two quadrangular quadruplet bearing bars 180 of the abdominal muscle type fixed by welding are disposed and bound, and the six-column top-type concrete foundation block is divided into the shoe 160 and the collar 170 as shown in FIG. 5C. Insert eight assembled reinforcing bars 150, and the rectangular six-member bearing steel reinforcement 180 of the abdominal muscle type fixed by a single abdominal muscle or a clip (clip) and welding on the bent groove of the upper position reinforcement 150 1 It is arranged by opening and binding, and the eight-unit top-type concrete foundation block is divided into the shoe 160 and the collar 170 as shown in FIG. 5D. Insert eight assembled reinforcing bar 150, place the rectangular eight-member bearing strength bar 180 of the abdominal muscle type fixed by the short or bar or clip (clip) and welding on the bent groove above the position reinforcement 150 It is arranged by binding and assembly is performed.

And, in order to facilitate the transport and construction work of the top-shaped concrete foundation block in the above configuration, as shown in Figure 5d, as shown in Figure 5d, the connecting ring reinforcement 190 is formed at the end of the reinforcing bar ( 150 or combined with various methods, such as welding to the strength-bearing reinforcement 180, the forming portion 110 of the forming mold 100 is further formed with an insertion groove 114 is inserted into the connecting ring reinforcement 190 do.

3. Mixing and Mixing Step

In the blending and mixing step (S3) according to the present invention, 15 to 25% by weight of cement as a binder, 25 to 50% by weight of 25% or less of crushed aggregates and 25 to 50% by weight of sand are mixed and mixed for 1 to 5 minutes. And add 1 ~ 5 minutes of 0.1 ~ 3% by weight of water reducing agent and a suitable amount of admixture as admixture, so that the slump is '0' so that the shape of the top-type concrete foundation block can be maintained when demolding the hardened concrete. To create the old bibim mortar.

At this time, the assembly rate of the aggregate and the moisture content of the prepared bibimb mortar mixture should be strictly managed because the shape of the top-shaped concrete foundation block acts as an important factor in maintaining the demoulded concrete.

4. Molding Step

Molding step (S4) according to the present invention, by inputting a predetermined amount of the formed bibim mortar by a predetermined amount, in order to improve the fillability of the old bibim mortar, low frequency vibration of 3,200 ± 200rpm initially, later high frequency vibration of 4,500 ± 200rpm 1 to 5 minutes are carried out sequentially, and the top surface of the top-type concrete foundation block is surface-treated with a pressing plate or a surface treatment machine to maintain the rough surface and flatness of the top surface of the top-type concrete foundation block after molding.

5. Rotate and Demolding stage

In the rotating and demolding step (S5) according to the present invention, after the surface treatment, the support frame 400 is inverted on the upper surface of the molding frame 100 of the molding apparatus, and the upper surface of the molding frame 100 of the molding apparatus 100 is formed. And faced to each other and fixed by the fixing device, and the molding mold 100 and the supporter 400 of the molding apparatus are rotated by 180 degrees as shown in FIG. 3 to be perpendicular to the lift table 300 in the lower part of the molding apparatus. When it is positioned and fixed on the ship, the lift table 300 is lifted up and in close contact with the lower portion of the support 400 so that the fixing device of the mold 100 and the support 400 is released, and the lift table 300 is gradually lowered. On the upper portion of the support 400, as shown in Figure 3, the mold-shaped concrete base block 540, which is not molded in the mold 100, is demolded by its own weight.

And, the support (400) and the hardened top-type concrete foundation block 540 is transferred to the curing room.

6. steam Curing stage

Steam curing step (S6) according to the present invention consists of a stationary step, the temperature rising step, an isothermal step, and a temperature reduction step of the solidified top-type concrete foundation block put into the curing room blocked from the outside for more than 2 hours.

At this time, the stationary step should be naturally cured while suppressing the dehydration of the stiffen-type concrete foundation block to prevent deformation and cracking due to the temperature rise in the subsequent step of the elevated temperature step. On the other hand, the stationary step must be carried out inside the curing room to prevent dehydration of the stiff top-type concrete foundation block and should be performed at room temperature for 2 hours or more.

And, in order to prevent the deformation and cracks of the stiff-type concrete foundation block due to the rapid temperature rise, the temperature rise step should be gradually raised to 65 ° C. over 2 to 4 hours, and the isothermal step is 2 to 6 ° C. at 65 ° C. Keep up the time.

In addition, the temperature reduction step should gradually reduce the temperature for 2 to 4 hours to room temperature in order to prevent the problem that the crack is generated as the block shrinks due to a sharp temperature drop.

The top-type concrete foundation block manufactured according to the present invention as described above is located in the center of the concrete reinforcing bar 150 is vertically arranged, the connecting ring 191 is a connecting ring reinforcing bar 190 protruding out of the concrete is It is selectively coupled to the position reinforcing bar 150 to form one unit.

In addition, the location reinforcing bar 150 is disposed vertically in the center of the concrete, the strength of the reinforcing bar 180 is horizontally coupled to the location reinforcing bar 150, the connection ring 191 to the location of the reinforcing bar 150 or bearing strength (180) The connecting ring reinforcing bars 190 protruding out of the concrete are combined to form an aggregate of four aggregates, six aggregates, and eight aggregates.

100: forming mold 200: support frame
300: lift table 400: support
510: 1 unit top type concrete foundation block
520: 4-unit top type concrete foundation block
530: 6-unit top type concrete foundation block
540: Eight-assembly top type concrete foundation block
140: separating hole 150: reinforcing bar
160: Shoe 170: Collar
180: bearing capacity

Claims (8)

Body portion 120 in which a plurality of forming portion 110 of the top-shaped concrete foundation block shape connected to the upper top portion and the lower pile portion are formed adjacent to each other,
Connection grooves 130 are formed in the portion where the adjacent molding portion 110 are connected to each other so that the adjacent molding portion 110 is in communication with each other,
Detachable fastener 140 is detachably fastened to the connecting groove 130 and formed in a shape symmetrical with a corresponding part of the top-type concrete foundation block,
Tops, characterized in that it comprises a position reinforcing fixing parts 160, 170 installed inside the forming part 110 to fix the position reinforcing bars 150 installed perpendicular to the forming unit 110 Type concrete foundation block forming frame. The forming mold 100 of claim 1, the support frame 200 is installed so that the forming mold 100 is rotatable, the lift table 300 is disposed below the forming mold 100, the forming mold It is installed to be detachable as a fixing means on the upper surface side upper surface of the top-type concrete foundation block of (100) and comprises a support (400) to prevent the separation of the top-shaped concrete foundation block in the rotation process of the mold 100 Top type concrete foundation block forming apparatus, characterized in that it is. Forming mold assembly step (S1) for selectively attaching the separator according to the shape of the top-type concrete foundation block to the forming mold of claim 1 to produce a top-type concrete foundation block;
Reinforcing bar assembling the reinforcing bars connecting the position bars of the molded parts connected to each other, because the separable concrete foundation blocks to be fixed and produced are fixed to the rebar fixing part and the top-shaped concrete foundation blocks to be produced are aggregates (S2) )Wow;
Compounding and mixing step (S3) of injecting the bi-beam mortar mixed in a predetermined mixing ratio into the molding unit;
Forming step (S4) of pressing or surface treatment to remove the rough surface and maintain the flatness of the top surface of the top-type concrete foundation block while vibrating the forming mold;
Rotating and demolding step (S5) to rotate the molding die 180 degrees so that the hardened top-shaped concrete foundation block is demoulded by its own weight;
Steam cured step (S6) for curing the deformed solidified top-type concrete foundation block in the curing room; forming method of the top-type concrete foundation block comprising a. According to claim 3, Bibim mortar in the mixing and mixing step (S3), the slump '0' slump (slump) so that the shape of the top-shaped concrete foundation block can be maintained when demolding the unconsolidated concrete Top type concrete foundation block molding method characterized in that the manufacturing. The method of claim 3, wherein the curing step (S6) is a stationary step to stand for 1 to 4 hours by putting the solid concrete base block solidified in the curing room blocked from the outside, the temperature rising step, isothermal step, temperature reduction step Top type concrete foundation block forming method, characterized in that consisting of. 4. The method of claim 3, wherein in the reinforcing bar assembly step (S2), the connecting bar reinforcement 190 is further coupled to the position reinforcing bar 150 or the bearing bar 180. delete delete

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