JP2939856B2 - Concrete product manufacturing method and manufacturing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a concrete product having a U-shaped vertical section, such as a U-shaped groove used as a side groove.

[0002]

2. Description of the Related Art FIG. 17 is a perspective view showing an example of the above-mentioned concrete product. In FIG. 17, G denotes a concrete product, which is formed into a U-shape (U-shape) having a square longitudinal section by opposing side walls L and a ceiling wall W connecting the side walls L. Is provided with an opening O for attaching a rectangular lid. F indicates the bottom where concrete is cast.

[0005] As shown in FIG. 17, the concrete products G described above can form side grooves by being arranged on a bottom F which is cast at an angle at the site.

[0004] In the case of manufacturing the concrete product G for forming the gutter, concrete is poured into a formwork to form the concrete products G one by one and cured. Therefore, in the method of manufacturing the concrete product G by pouring, the concrete product G to be manufactured is
Are required. Therefore, when the concrete product G is manufactured by immediate demolding, in which concrete having a small slump value is put in and immediately demolded, the number of molds can be reduced. Conceivable.

[0005]

The conventional method for producing a concrete product is inferior in productivity since concrete products G are produced one by one even in immediate demolding. Therefore, there is a disadvantage that the concrete product G becomes expensive.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned disadvantages, and it is possible to efficiently produce a U-shaped concrete product with a high vertical cross section with good productivity, thereby reducing the cost of the concrete product. It is an object of the present invention to provide a concrete product manufacturing method and a manufacturing apparatus capable of simplifying the structure of a formwork while simplifying the structure.

[0007]

First SUMMARY OF THE INVENTION The inventions are Pas Le <br/> Tsu DOO, core frame and two con a space formed by the outer frame <br/> cleat product B-shape as opposed to, the mold was divided by a partition member mounted to the pallet, two by introducing the concrete into the formwork partitioned by the partition member while applying vibration
Of concrete products by molding, after demolding the core frame by relatively moving the portion excluding the core frame and the core frame, relatively a portion excluding the outer frame and the outer frame Move and remove the outer frame
To manufacture concrete products with U-shaped vertical section
In the cleat product manufacturing method, the concrete product side
The length of the wall is adjusted by the thickness of the partition material .
Next, the concrete product manufacturing apparatus according to the present invention includes:
A core frame fixed to the table of the vibrator and having a rectangular cross-sectional shape, a pallet having a through hole that is placed on the table and through which the core frame passes in a fitted state, and is attached to and detached from the pallet. It is mounted so that it can be mounted, and it is placed on a pallet so as to surround the core frame, and a partition member protruding outward from the center of one of the opposite side surfaces of the core frame at a predetermined length, and has a rectangular cross-sectional shape. in the partition member is abutting the inner surface of one of side plates facing each other, opposite
An outer frame provided with an opening and a positioning portion on the other side plate, an outer frame clamp mechanism for fixing the outer frame to the pallet, and a front surface abutting on the core frame when inserted from the opening, and a rear surface
Is flush with the inner surface of the outer frame, closing the opening,
The peripheral edge of the lid core has a fitting hole on the back and the outer
When in contact, it is flush with the inner surface of the outer frame and fits into the opening
Step, align the rear surface of the lid core with this step
Holes that overlap with the fitting holes in the upright position, at least one
When the through hole and stepped part of the
A supporting frame having a positioning portion to be engaged, a fitting hole and
Multiple fitting pins that fit into the fitting holes, penetrate through holes, and cover
A cover core clamp mechanism for fixing the core to the support frame, and this clamp
And a support frame clamp mechanism for fixing the ramp mechanism to the outer frame .

[0008]

The concrete product manufacturing method and the manufacturing apparatus according to the present invention are characterized in that concrete having a small slump value is put into each of the forms separated by a partition material while applying vibration to the assembled form by a vibrator. After molding, the core frame and the portion excluding the core frame are relatively moved to release the core frame. Then, after the outer frame and the portion excluding the outer frame are relatively moved to release the outer frame, the concrete product is cured while being placed on a pallet.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view of a concrete product manufacturing apparatus according to one embodiment of the present invention, and FIG.
1 is a front view of the concrete product manufacturing apparatus shown in FIG. 3, and FIG. 3 is a left side view of the concrete product manufacturing apparatus shown in FIG. In FIG. 1, the left half is a plan view, and the right half is a cross-sectional view taken along line AA of FIG. 2, and illustration of a ring and the like is omitted. FIG. 2 and FIG. 3 show a state in which concrete has been charged, and show a part of a ring and the like.

In these figures, B indicates a vibrator,
A table T is provided on the upper surface, and a plurality of hydraulic clamp mechanisms C for fixing an outer frame 5 and the like described later are provided on the table T. Reference numeral 1 denotes a core frame fixed to the table T, which has a rectangular cross section with a flat cross section and a cylindrical shape whose upper end is narrowed and closed. Reference numeral 2 denotes a pallet placed on the table T, and a through hole 3 through which the core frame 1 penetrates in a fitted state is formed in a central portion.

Reference numeral 4 denotes a partition member functioning as a spacer, and a predetermined length, that is, a concrete product G, extends outward from the center of one of the two opposing side surfaces of the core frame 1 (the surfaces opposing in the vertical direction in FIG. 1). Are detachably attached to the pallet 2 with bolts or the like so as to protrude with the width of both side walls L. Reference numeral 5 denotes an outer frame mounted on the pallet 2 so as to surround the core frame 1. The outer frame 5 has a rectangular cross section in a rectangular tubular shape. The outer surface of the partition member 4 abuts on the inner surface of the partition member 4 which faces the partition member 4.

The outer frame 5 is provided with a plurality of rings 6 for lifting the upper flange in a state of being balanced with the upper flange. A press device P to be described later can be attached, and a cylindrical portion 7 for lifting the outer frame 5 in a balanced state is provided to face each other,
A plurality of rotatable outer frame clamp mechanisms 8 for fixing the outer frame 5 to the pallet 2 are provided on the lower flange, and openings 9 are provided at central portions of both side surfaces where the cylindrical portion 7 is provided. Locking groove 10 as positioning portion for positioning frame 14
In order to fix the support frame 14 to the outer frame 5, a plurality of toggle-type support frame clamp mechanisms 11 corresponding to the locking grooves 10 are provided.

FIG. 4 is a partially enlarged side view of the outer frame showing the support frame portion, FIG. 5 is a partial cross-sectional view taken along line BB of FIG. 4, and FIG. 6 is a left partial cross-sectional view taken along line CC of FIG. FIG. 7 is a partial sectional view on the left side along the line DD in FIG. FIG. 8 is an explanatory diagram showing a configuration of an outer frame clamp mechanism, and FIG. 9 is an explanatory diagram showing a configuration and operation of a clamp mechanism for fixing a pallet or the like to a table of a vibrator.

In these figures, reference numeral 12 denotes a cover core. When the cover core is inserted through the opening 9 of the outer frame 5, the front surface comes into contact with the core frame 1 and the rear surface is flush with the inner surface of the outer frame 5. Opening 9
And a plurality of, for example, four fitting holes 13 are provided on the rear surface. Reference numeral 14 denotes a support frame, and an outer frame 5
A step 15 which is flush with the inner surface of the outer frame 5 and fits into the opening 9 in a state where the peripheral edge is in contact with the outer surface of the outer frame 5;
5 with the rear surface of the lid core 12 aligned.
3 and four clamp holes 23 to be described later.
And two through holes 17 which partially penetrate the stepped portion 15 is constituted by the two Hamago杆18 as the positioned portion fitted in the locking groove 10 in a state fitted to the opening 9 I have. A concave portion 19 with which a part of the outer frame clamp mechanism 8 is engaged is provided at the tip of each fitting rod 18.

Reference numeral 20 denotes a lid core clamping mechanism, which is provided at a square pipe 21 and at both ends of the square pipe 21 and is fitted into the fitting hole 16 of the support frame 14 and the fitting hole 13 of the cover core 12. The two fitting pins 22 and the end portions attached to the square pipe 21, the tip portions of which pass through the through holes 17 of the support frame 14 engage with the cover core 12 to fix the cover core 12 to the support frame 14. And a dynamic clamp 23.

FIGS. 10 to 16 are explanatory views showing the steps of manufacturing a concrete product.

Next, the production of a concrete product will be described. First, as shown in FIG. 10, a partition member 4 having a thickness corresponding to the length of both side walls L of the concrete product G is mounted upright on a pallet 2 placed on, for example, a work table with bolts or the like. Then, reinforcing bars are provided as necessary.

Next, as shown in FIG. 11, the outer frame 5 is lifted using the ring 6, and the outer frame 5 is placed on the pallet 2 as shown in FIG. Thus, the outer frame 5 is fixed to the pallet 2 by operating the outer frame clamp mechanism 8. When the outer frame 5 is set on the pallet 2 in this manner, the outer shape of the pallet 2 and the outer frame 5 are substantially the same, so that the outer frame 5 can be positioned with respect to the pallet 2 and the outer surface of the partition member 4 has an outer surface. The thickness of the concrete product G is set from the end of the through hole 3 of the pallet 2 to the inner surface of the outer frame 5 while being in contact with the inner surface of the frame 5.

Then, the fitting hole 13 of the cover core 12 and the fitting hole 16 of the support frame 14 are aligned with each other so that the cover core clamping mechanism 2
After fitting the fitting pin 22 of No. 0, the support frame 14 to which the lid core 12 is fixed by rotating the clamp 23 in the direction indicated by the arrow in FIG. Opening 9 of outer frame 5
When the step portion 15 is fitted to the fitting groove 18, the fitting rod 18
The support frame 14 is fixed to the outer frame 5 by operating the support frame clamp mechanism 11 as shown in FIG.

Further, as shown in FIG. 13, the outer frame 5, the partition member 4 and the pallet 2 are lifted using the ring 6, and fixed to the table T of the vibrator B as shown in FIGS. The inserted core frame 1 is inserted into the through hole 3 and the table T
The outer frame 5 and the like are placed on the
Is operated from the state shown by the two-dot chain line in FIGS. 3 and 9 to the state shown by the solid line, and the outer frame 5 is fixed to the table T, so that the pallet 2 and the like are also fixed to the table T.

In this state, while the concrete having a small slump value is put between the core frame 1 and the outer frame 5 partitioned by the partition member 4, the core frame 1, the pallet 2 and the outer frame 5 Vibration is applied to the object to eliminate voids that become voids. Next, as shown in FIG. 14, a press device is attached to the outer frame 5 using the cylindrical portion 7, and the end face of the concrete product G is pressurized by the press device P for a predetermined time, and at the same time, vibrated by the vibrator B for a predetermined time. To form a connecting portion on the end face.

After the clamping of the outer frame 5 and the like to the table T is released by operating the clamp mechanism C in the opposite manner as described above, the pallet 2, the outer frame 5 and the concrete product G are also lifted by lifting the pressing device P. lift. When the press apparatus P is lifted in this manner, the core frame 1 is fixed to the table T, and thus the core frame 1 can be released. At this time, the concrete product G
The surface on the side of the core frame 1 is
Because it comes into sliding contact with the surface, a beautiful finish is obtained.

Next, the press device P and the like lifted as described above are conveyed to the curing station, and once lowered as shown in FIG. 15, the outer frame clamp mechanism 8 is operated to operate the outer frame 5 with respect to the pallet 2. Is released, the clamp 23 is operated to release the fixation of the lid core 12 to the support frame 14, and the lid core clamp mechanism 20 is removed. When the concrete product G is pushed down by the press device P in a state where the end face of the outer core 5 is formed, the rear face of the cover core 12 and the stepped portion 15 are flush with the inner face of the outer frame 5, as shown in FIG. Thus, the outer frame 5 can be removed from the mold. At this time, the surface of the concrete product G on the outer frame 5 side comes into sliding contact with the inner surface of the outer frame 5 by removing the outer frame 5, so that a beautiful finished state is obtained.

After curing in the state of FIG. 16, the concrete product G is completed by removing the concrete product G from the pallet 2 and the partition member 4. The pallet 2 from which the concrete product G has been removed in this way can be used for the production of the next concrete product G. The outer frame 5 removed in the state of FIG. After the support frame 14 is released from the fixing and the support frame clamp mechanism 11 and the support frame 14 are removed, the support frame 14 can be used immediately for the production of the next concrete product G. Further, the lid core 12 may be removed before or after the concrete product G is cured.

As described above, according to one embodiment of the present invention, since two concrete products G can be manufactured,
The concrete product G can be efficiently manufactured with high productivity. Therefore, the cost of the concrete product G can be reduced. Since the core frame 1 and the outer frame 5 are cylindrical, there is no need to perform sealing between the core frames 1 or between the outer frames 5, and the core frame 1 and the pallet 2
8 and 9 between the pallet 2 and the outer frame 5.
As shown in (2), it is only necessary to seal with the packings 24 and 25, so that the sealing property is good and the trouble of sealing can be saved.

Further, since the two concrete products G are manufactured in the shape of a square through the partition member 4 and are immediately removed from the mold, each of the exposed main surfaces of the concrete products G is a core frame. Since it comes into sliding contact with the surface of the outer frame 1 or the outer frame 5, a beautiful finished state is obtained. Furthermore, since the core frame 1 and the outer frame 5 may be formed in a tubular shape as compared with the structure of the formwork when one concrete product G is laterally struck, the structure of the formwork can be simplified, The production cost of the formwork is lower than the production cost of the formwork in the case of horizontal casting, and the strength of the formwork is improved because the formwork is closed. Further, by changing the partition member 4 to one having a different thickness, the length of both side walls L of the concrete product G can be adjusted.

In the above-described embodiment, two concrete products G are formed in a rectangular shape with the partition member 4 interposed therebetween. However, an H-shape or an E-shape is formed through the partition material. Or, two pieces may be taken in a state of standing in another shape. The through holes 17 provided in the support frame 14 are
Since the surface of the concrete product G slides on the step portion 15,
It is desirable to make the clamp 23 as small as possible within a range where the clamp 23 can be inserted and removed. Furthermore, although the example of manufacturing the concrete product G having the opening O in the ceiling wall W has been described, when manufacturing the concrete product having no opening O in the ceiling wall W, the opening 9 of the outer frame 5 is eliminated or fitted. Hole 16 and through hole 1
By preparing a support frame without the 7, a concrete product can be similarly manufactured.

[0028]

As described above, according to the present invention, since two concrete products can be manufactured, concrete products can be efficiently manufactured with high productivity. Therefore, the cost of the concrete product can be reduced. And since the core frame and the outer frame are cylindrical,
There is no need to provide sealing between the core frame or the outer frame, and it is only necessary to seal the space between the core frame and the pallet, or between the pallet and the outer frame with packing, so that the sealing performance is good and the sealing is good. Time is saved.

Further, since the two concrete products are manufactured in a state of standing in the shape of a square through the partition material and immediately removed from the mold, each of the exposed main surfaces of the concrete product has a core frame or an outer frame. To make a beautiful finish. Furthermore, since the core frame and the outer frame need only be formed in a tubular shape as compared with the structure of the formwork when one concrete product is laterally struck, the structure of the formwork can be simplified and the structure is laterally struck. The production cost of the formwork is lower than the production cost of the formwork in that case, and since the formwork is a closed mold, the strength of the formwork is improved. Further, by changing the partition material to one having a different thickness, the length of both side walls of the concrete product can be adjusted.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a concrete product manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is a front view of the concrete product manufacturing apparatus shown in FIG.

FIG. 3 is a left side view of the concrete product manufacturing apparatus shown in FIG.

FIG. 4 is a partially enlarged side view of an outer frame showing a support frame portion.

FIG. 5 is a partial sectional view taken along line BB of FIG. 4;

FIG. 6 is a partial sectional view on the left side taken along line CC of FIG. 4;

FIG. 7 is a partial sectional view on the left side along the line DD in FIG. 4;

FIG. 8 is an explanatory diagram showing a configuration of an outer frame clamp mechanism.

FIG. 9 is an explanatory view showing the configuration and operation of a clamp mechanism for fixing a pallet or the like to a table of a vibrator.

FIG. 10 is an explanatory view showing a production process of a concrete product.

FIG. 11 is an explanatory view showing a production process of a concrete product.

FIG. 12 is an explanatory view showing a production process of a concrete product.

FIG. 13 is an explanatory view showing a production process of a concrete product.

FIG. 14 is an explanatory view showing a production process of a concrete product.

FIG. 15 is an explanatory view showing a production process of a concrete product.

FIG. 16 is an explanatory view showing a production process of a concrete product.

FIG. 17 is a perspective view showing an example of a concrete product.

[Explanation of symbols]

 G Concrete product L Side wall W Ceiling wall O Opening 1 Core frame 2 Pallet 3 Through hole 4 Partition material 5 Outer frame 6 Ring 7 Tube section 8 Outer frame clamp mechanism 9 Opening 10 Locking groove 11 Support frame clamp mechanism 12 Lid core DESCRIPTION OF SYMBOLS 13 Fitting hole 14 Support frame 15 Step part 16 Fitting hole 17 Through hole 18 Fitting rod 19 Depression 20 Lid core clamp mechanism 21 Square pipe 22 Fitting pin 23 Clamp 24, 25 Packing B Vibrator T Table C Clamp Mechanism P Press device

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B28B 1/00-1/54 B28B 7/00-7/46

Claims (3)

(57) [Claims] 1. A pallet, is formed in the core frame and the outer frame
Two concrete products face each other in a square shape
As described above, the formwork partitioned by the partition material attached to the pallet
In the concrete before Symbol mold in partitioned by the partition member by introducing molding the two concrete products, relative to the portion excluding the core frame and the core frame while applying vibration after demolding the core frame is moved, the outer frame and longitudinal section U-shaped concrete products and a portion except for the outer frame are moved relative to demolding the outer frame by Manufacture
In the concrete product manufacturing method, the length of the side wall of the concrete product is determined by the thickness of the partition material.
Adjusted by, concrete products manufacturing method characterized by. 2. The method of manufacturing a concrete product according to claim 1 , wherein the fixing of the lid core to the outer frame is released before the outer frame is released, and the lid core is supported by the concrete product. by demolding said outer frame in a state, forming an opening for attaching the lid to the concrete products, concrete products manufacturing method characterized by. 3. A core frame having a rectangular cross section fixed to a table of a vibrator and having a through hole mounted on the table and through which the core frame passes in a fitted state. A pallet, a partition member detachably attached to the pallet, and a partition material projecting outward from the center of one of the two opposing side surfaces of the core frame by a predetermined length, and the pallet surrounding the core frame. It is placed, and the partition member abutting the inner surface of one of the side plates of planar cross-sectional shape to face a rectangular shape, the opening and located on the other of the side plates facing
An outer frame having a determining portion, an outer frame clamp mechanism for fixing the outer frame to the pallet, and when inserted from the opening, the front surface abuts on the core frame,
The rear surface is flush with the inner surface of the outer frame and the opening is closed.
A cover core provided with a plurality of fitting holes on the rear surface, and an inner surface of the outer frame in a state in which a peripheral edge is in contact with an outer surface of the outer frame.
The step portion, the step for fitting before Symbol opening a flush state
With the rear surface of the lid core aligned with the difference part,
A plurality of fitting holes overlapping the mating holes, at least one through hole,
The positioning portion is in a state where the step portion is fitted in the opening.
A support frame having a portion to be positioned which engages with the fitting hole; and a plurality of fitting pins which fit into the fitting hole and the fitting hole.
And the cover core is fixed to the support frame through the through hole.
Lid core clamp mechanism to be fixed, and a support frame clamp for fixing the clamp mechanism to the outer frame
A concrete product manufacturing apparatus comprising: a mechanism.