JPH0524027A - Molding device of concrete plate - Google Patents

Abstract

PURPOSE:To enable the molding device to cope with the molding of the concrete plate with different surface-designs effectively without cost up, while framing and demolding may be achieved easily. CONSTITUTION:A supporting holder 20, the surface-mold body 30 which molds the surface of a concrete plate and is supported detachably on the supporting holder 20 and the side-mold body 40 which molds the side of the concrete plate and is provided on the supporting holder 20 movably to the two positions of the molding position of the side and the demolding position kept apart from the molding position, are provided. The side-mold body 40 is composed of a main body-molding body 50 and the part-molding body 51 connected to the main body-mold body 50 movably in the direction different from the moving direction to the demolding position. By moving the side-mold body 40, framing and demolding are achieved. When the concrete plate with different surface- design is molded, another top-mold body 30 with different mold face is fitted to the supporting holder 20 additionally.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete plate forming apparatus for forming a concrete plate for civil engineering laid on a slope or the like.

[0002]

2. Description of the Related Art As a concrete board, for example, FIG.
The one shown in Fig. 5 is known. In this concrete board 1, a ridge portion 2 is integrally formed in the center of the right and left sides of a rectangular plate, and a recess 3 is formed in each corner, and a recess 3 is provided on one of the ridge portions 2 to form a crocodile. The shaft 4 is embedded, and the other projection 2 is embedded with a pipe to form an insertion hole 5 into which the shaft 4 is inserted. Further, the surface 6 of the concrete board 1 shown in FIG. 15 is a smooth surface and has no pattern, but as shown in FIG. 16, a surface 6 such as a surface with a decorative pattern such as a stone wall is used. There are those with various patterns.

When using this concrete board 1,
For example, as shown in FIG. 17, a large number of concrete boards 1
The upper and lower flat side surfaces 7 are joined vertically to be continuous with each other, and the deformed side surfaces 8 with the protruding portions 2 are inserted through the shaft 4 into the insertion hole 5 so that the left and right sides are alternately meshed with each other. , A large number of concrete boards 1 are stacked on the slope and constructed.

Conventionally, as a concrete plate molding apparatus for molding the concrete plate 1, for example, as shown in FIG. 18, a lower mold 12 integrally having a surface mold surface portion 11 for molding the surface 6 of the concrete plate 1. And concrete board 1
And a side mold 13 for molding the side surface of the side mold 13. The side mold 13 is divided into several parts, each of which is fixed to the lower mold 12 around the surface mold surface portion 11 by a mounting bracket such as a bolt. The reason why the side mold 13 is divided is to facilitate the demolding, and in particular, since the portion for molding the ridge portion 2 is difficult to come off from the ridge portion 2 during the mold releasing, Mold 1 for molding the outer surface and the side surface of the recess 3
It is divided into 5, respectively.

When the concrete plate 1 is molded, the divided side mold 13 is attached to the lower mold 1 with a mounting bracket such as a bolt.
2, and in this state, a reinforcing bar (not shown) embedded in the concrete plate 1 is put in the mold, and a projecting member protruding from the rear surface of the concrete plate 1 to the erection member 16 suspended between the side molds 13 ( (Not shown) is held with bolts and nuts. After that, concrete is poured into the mold and cured for the required time. Further, when removing from the mold, the bolts and nuts are removed, the protruding member is separated from the erection member 16, and the erection member 16
Is removed from the side mold 13, the mounting metal fittings such as bolts are removed, the side mold 13 is removed from the lower mold 12, and the product is taken out.

[0006]

By the way, in the conventional concrete plate molding apparatus 10 described above, when the mold is assembled, the divided side mold 13 is brought to the lower mold and a mounting bracket such as a bolt is used. It is necessary to attach it one by one, and also when removing the product from the mold, you have to remove it as well,
There is a problem that the work is complicated and the work efficiency is poor. Further, since the side mold 13 is divided and separated, and a large number of mounting fittings such as bolts for fixing are required, there is a problem that the parts management becomes complicated accordingly.

Further, as described above, the concrete board 1
Has various designs on the surface 6, so
When molding a concrete board 1 with a different design, replace it with a lower mold 12 manufactured differently.
Has a mechanism for fixing the side mold 13,
Since it is large and complicated, there is a problem in that preparing a different lower mold 12 is inefficient in manufacturing and the cost is high.

The present invention has been made in view of the above problems, and it is an object of the present invention to make it possible to easily mold and demold, and also to form a concrete plate having a different surface design. The point is to be able to respond efficiently without increasing costs.

[0009]

The technical means of the present invention for solving such a problem is to provide a support and a surface of a concrete plate in a concrete plate molding apparatus for molding the surface and the side surface of the concrete plate. A support base that is molded to form a surface mold body that is detachably supported on the support base, and a side face of a concrete plate that is molded and can be moved to two positions, a molding position on the side face and a mold release position separated from the molding position. And a side body provided on the.

Then, a plurality of engaging portions having recesses that are released in the mold surface direction of the surface mold are provided on either one of the rear part of the surface mold and the support base, and the rear part of the surface mold and the support base are provided. On either side is provided an engaged portion with which the concave portion of the engaging portion engages by the movement of the surface die in the die surface direction, and by engaging the engaging portion and the engaged portion, the surface die is formed. Positioning on the support is effective.

The side mold body is composed of a main mold body and a partial mold body, and the partial mold body moves to the main body mold body in a direction different from the moving direction of the main body mold body to the releasing position. It is effective that they are connected as much as possible.

Further, the side mold is provided with a wrapping part for wrapping a projecting part projecting from the side surface of the concrete plate, and a part of the side mold is separated so that the projecting part is separated from the wrapping part. It is effective that it is configured as a mold that opens the holding portion so that it can escape.

Furthermore, a suspension mechanism for suspending a projecting member projecting from the rear surface of the concrete plate is provided, and the suspension mechanism comprises:
A support member fixed to the support base or the side mold,
A fixing fitting for fixing the protruding member to the supporting member is provided, and the fixing member includes a pin that penetrates the supporting member and the protruding member and has its tip bent to hold the protruding member on the supporting member, and a magnet that attracts the protruding member. It is effective to be prepared.

[0014]

According to this means, when the mold is assembled, the surface mold is previously supported on the support base, and the side mold is moved from the mold release position to the molding position. In this state, concrete is poured to form a concrete plate. Further, at the time of demolding for taking out the product, the side mold is moved from the molding position to the releasing position, and the product is taken out. In this way, since the side molds can be moved on the support base, even if there are a plurality of side molds, die assembly and demolding can be easily performed.

When molding concrete plates having different surface designs, the supported surface mold is removed from the support base, and another surface mold having a different mold surface is newly attached to the support base. In this case, since the surface mold is separate from the support table provided with the side mold, the structure can be simplified accordingly, and therefore the manufacturing is facilitated. Further, since the structure can be simplified, the attachment / detachment work can be easily performed.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete board forming apparatus according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

This molding apparatus is similar to that described above with reference to FIG.
5 and the concrete board 1 having the shape shown in FIG. 16 is molded. As shown in FIG. 2, this concrete board 1 has a ridge 2 integrally formed at the center of the right and left sides of a rectangular board.
A recess 3 is formed in each corner, and one of the ridges 2 is formed.
A shaft 4 protruding from the recess 3 is embedded therein, and a pipe (not shown) having an insertion hole 5 into which the shaft 4 is inserted is embedded in the other protrusion 2.

As shown in FIGS. 1 to 5, the concrete board forming apparatus according to the embodiment forms a support 20, a surface mold 30 for forming the surface of the concrete board 1, and a side surface of the concrete board 1. And a side face body 40 that does.

As shown in FIGS. 5 to 7, the surface mold 30 has a plate-like shape having an outer shape corresponding to the concrete plate 1, and a mold for molding the surface 6 of the concrete plate 1 on the front surface. A surface 31 is provided. 5 to 7 show the concrete plate 1 in which the surface 6 is molded into a smooth surface as shown in FIG. 15, and the mold surface 31 is formed of a metal plate.
Further, as shown in FIG. 16, when a decorative pattern is molded, a rubber mold (not shown) for molding the pattern is attached to the front surface.

A grid-shaped rib 32 is provided on the rear portion of the surface mold 30. Further, at the rear part of the surface mold 30, an engaging portion 34 having a recess 33 released in the mold surface direction of the surface mold 30 is provided. As shown in FIGS. 8 and 9, the engaging portion 34 has a recess 33 formed by an L-shaped projection 35 provided on the rib 32 and an end edge 32 a of the rib 32. As shown in FIG. 5, a plurality of engaging portions 34 are provided on the circumference around a shaft 36 protruding from the center point 30 a of the surface mold 30. On the other hand, as shown in FIG. 4, the upper portion of the support base 20 is composed of beams 21 in the form of a flat lattice, and as shown in FIGS.
A part of the beam 21 corresponding to the above is formed by the rotational movement of the surface mold 30 in the mold surface direction in a state where the upper part of the support 20 and the rear part of the surface mold 30 are joined to each other. Is configured as the engaged portion 22 with which is engaged. The engagement between the engaging portion 34 and the engaged portion 22 causes the surface mold 3
0 is positioned and mounted on the support 20, and is released by disengagement. In FIG. 4, reference numeral 23 indicates the surface mold 3.
A shaft 36 projecting from a center point 30a of 0 is a receiving portion of the central portion of the support base 20 into which the shaft 36 is rotatably fitted.

The side mold 40 is shown in FIGS. 1, 2, 3, and 1.
As shown in FIG. 0 and FIG. 14, a pair of deformed side molds 41 for molding the deformed side surface 8 of the concrete plate 1 having the ridge portion 2
And a pair of flat side surface molds 42 for molding the flat side surface 7 without the ridge portion 2. The modified side surface mold 41 and the flat side surface mold 42 respectively have molding positions A (see FIG. 1) on the respective side surfaces 7 and 8.
4 (a)) and a releasing position B separated from the molding position A
It is provided on the support base 20 so as to be movable to two positions shown in FIG. 14C. That is, the modified side mold 41 and the flat side mold 42.
Leg portions 43 extending inside the support base 20 are provided in the lower portions of the respective bases, and the leg portions 43 are provided with rollers 45 for rolling rails 44 provided inside the support base 20. Then, by rolling the roller 45 on the rail 44, the above movement is possible. Reference numeral 46
Is a support roller on the side of the support base 20 that supports the leg portion 43 of the modified side surface mold 41. A locking device (not shown) is provided at the molding position A of the modified side surface mold 41 and the planar side surface mold 42 to lock the modified modified side surface mold 41 and the planar side surface mold 42 by connecting them with a rod.

The irregular side mold 41 is composed of a main mold body 50 having leg portions 43 and a partial mold body 51. As shown in FIG. 10, the main body 50 has a flat molding surface 50a for molding the outermost surface 2a (FIG. 2) of the protrusion 2. The partial mold body 51 is formed in a block shape, and has two molding surfaces 5 that are orthogonal to each other and mold the surfaces 3 a and 3 b of the recess 3.
It has 1a and 51b. This partial mold body 51 is provided on both side surfaces of the molding surface 50a of the main mold body 50 via a link mechanism 52 so as to be movable in an outer direction different from the moving direction of the main mold body 50 to the releasing position B. Are linked together.

Further, in one of the pair of irregular side molds 41, the partial mold body 51, as shown in FIG. 10, encloses the shaft 4 as a projecting part projecting from the projecting ridge 2 of the concrete plate 1. And a holding part 53 for
Part 1 is configured as a mold 54 which is separated when the partial mold body 51 is moved to the releasing position B and opens the holding part 53 so that the shaft 4 can escape from the holding part 53. ing. The split mold 54 can be attached to a general portion of the partial mold body 51 by a bolt 55.

As shown in FIG. 13, the concrete plate 1 has a reinforcing bar 60 embedded therein. Further, as shown in FIG. 2, a plate-shaped projecting member 61 having an embedded plate 62 embedded therein projects from the rear surface of the concrete plate 1. The projecting member 61 is for bolting to another reinforcing member when the concrete board 1 is constructed. The molding apparatus according to the present embodiment is provided with the embedded plate 62.
A suspension mechanism 70 for suspending the projecting member 61 is provided. This suspension mechanism 70, as shown in FIG. 11 and FIG. 12, fixes a supporting member 71 which is hung and fixed between the irregular side molds 41 of the side mold body 40, and a protruding member 61 to the supporting member 71. And a fixing bracket 72 for The fixing metal fitting 72 is provided on the fixing plate 73, penetrates through the through holes 74 and 63 formed in the supporting member 71 and the protruding member 61, and the tip end 75a thereof is pivotally supported and bent to hold the protruding member 61 on the supporting member 71. Pin 75 and the support member 71 provided on the fixed plate 73.
And a magnet 77 which penetrates through the through hole 76 and is attracted to the protruding member 61. Reference numeral 78 is a guide member that is provided on the support member 71 and prevents the protruding member 61 from rotating.

Therefore, when the concrete board 1 is molded by this concrete molding apparatus, the procedure is as follows. The process will be described below with reference to the process chart of FIG.

First, as shown in FIG. 13, prior to molding, the surface mold 30 is supported on the support base 20 in advance.
For example, a concrete plate 1 having a smooth surface as shown in FIG.
In this case, the surface mold 30 having a flat mold surface 31 is used. In this case, the surface mold 30 is conveyed by a crane or the like, the shaft 36 is fitted to the receiving portion 23 of the support base 20, and the support base 20 is
The upper part and the rear part of the surface mold 30 are joined, and in this state, the surface mold 30 is rotationally moved in the mold surface direction. This allows
The recess 33 of the engaging portion 34 of the surface mold 30 is engaged with the engaged portion 22 of the support base 20, and the surface mold 30 is attached to the support base 20. In this mounting, since the engaging portion 34 is engaged with the engaged portion 22, the surface mold 3 does not rattle.
The positioning of 0 becomes accurate.

Next, as shown in FIG. 13, the side surface mold 40 is moved from the releasing position B to the molding position A and locked by the lock mechanism. In this case, the irregular side surface mold 41 and the flat surface side surface mold 42 of the side surface mold body 40 are the same as the roller 45 of the leg portion 43.
Since it can be moved only by rolling the rail on the rail 44, the mold can be easily assembled. Further, as shown in FIG. 10, in the partial mold body 51 of the one variant side mold 41, the split mold 54
Then, the shaft 4 is wrapped in the wrapping portion 53, and then the split mold 54 is attached to the general portion of the partial mold body 51 and fixed by the bolt 55. Further, a pipe for inserting the shaft 4 is stretched between the partial mold bodies 51 of the other variant side mold 41.

In this state, as shown in FIG. 13, the reinforcing bar 60 is put into the mold together with the embedding plate 62. Next, FIG.
As shown in FIG. 7, a supporting member 71 is bridged and fixed between the variant side molds 41, and the protruding member 61 of the embedded plate 62 is fixed to the fixing bracket 7.
It is fixed to the support member 71 at 2. In this case, as shown in FIG. 12, by inserting the pin 75 of the fixing bracket 72 into the through holes 74 and 63 and tilting the tip 75a of the pin 75, the magnet 77 is attracted and the pin 75 tip 75a is pressed. Since the protruding member 61 of the embedding plate 62 can be held, the mounting work is greatly simplified and the work efficiency is improved as compared with the conventional fixing by bolts and nuts.

Then, as shown in FIG. 13, concrete is poured in this state and cured for a required time. After the required time has passed, the product is removed from the mold.
First, as shown in FIG. 13, the pin 75 of the fixing bracket 72
Is straightened and pulled out from the through holes 74 and 63, and the fixing metal fitting 72 is removed. In this case, since the fixing bracket 72 can be removed with one touch, the work is greatly simplified and the work efficiency is improved as compared with the conventional case where the bolts and nuts are removed one by one. After that, the support member 71 hung between the deformed side dies 41 is removed.

Next, as shown in FIG. 13, the side mold 4
0 is moved from the molding position A to the releasing position B. In this case, as shown in FIG. 10, the bolts of the split mold 54 are removed, and the deformed side surface mold 41 and the flat side surface mold 42 of the side surface mold body 40 are moved to the releasing position B, respectively. At this time, as shown in FIG. 10 and FIGS. 14A and 14B, in the modified lateral die 41, the mold 54 of the partial mold 51 is stopped by the shaft 4 and separated from the general part of the partial mold 51. At the same time, the holding portion 53 is opened as a result, and the shaft 4 escapes from the holding portion 53.

Further, as shown in FIGS. 10 and 14 (b), in the modified side surface mold 41 of the side surface mold body 40, the partial mold body 51 has the one surface 3a (protruding ridge portion) of the recess 3 along the mold releasing direction. 2 side surface), which causes frictional resistance, but the partial mold body 51 releases the main mold body 50 by a component force orthogonal to the mold release direction or by force. The link mechanism 5 is moved in an outward direction different from the moving direction to the position B.
2 through which the frictional resistance prevents the mold from being removed or damaging the product. In particular, when the side surface 3a of the ridge portion 2 has an inward slope or a step, it is possible to reliably prevent interference between the mold and the product, which is extremely effective. Furthermore, since it is moved while being supported by the main mold body 50 via the link mechanism 52, it is possible to arbitrarily secure a demolding space within a predetermined range, and when removing the mold by removing bolts one by one as in the conventional case. By comparison, the work is greatly simplified and the work efficiency is improved.

Then, as shown in FIG. 13, at the releasing position B of the side face mold 40, the product is taken out by a crane or the like. In this way, by moving the side mold 40, the same product can be repeatedly molded.

Also, when the concrete board 1 having a different surface design is molded, for example, when the smooth surface type shown in FIG. 15 is changed to the decorative pattern type shown in FIG. 16, it is mounted. The surface mold 30 is removed from the support 20, and another surface mold 30 having a different mold surface 31 is used.
Is newly attached to the support base 20. In this case, the surface mold 3
This is a simple structure in which the engaging portion 34 and the engaged portion 22 are engaged and disengaged by rotating 0, and accordingly, the attaching and detaching work is easily performed. Moreover, the surface mold 30 is a separate body from the support base 20 on which the side mold 40 is provided, and
Since it is a plate-like body having an outer shape corresponding to, it is relatively small and, therefore, it is easy to carry. Therefore, also in this respect, the attachment / detachment work is easily performed. For this reason, the working time can be shortened, so that the manufacturing efficiency in manufacturing many kinds of concrete plates 1 is significantly improved. Further, since the surface mold 30 is relatively small and has a simple structure, the surface mold 30 is easily manufactured, and the efficiency is also good in this respect.

Further, when the surface mold 30 is mounted, for example, in the case of fixing with a bolt or the like, the mounting position varies depending on the manufacturing lot due to the looseness of the bolt hole. In the example, since the engaging portion 34 is engaged with the engaged portion 22, there is no rattling and the positioning of the surface mold 30 is accurate. Therefore, even if the surface mold 30 is repeatedly exchanged, the surface mold 30 can always be positioned at the regular position, and even if the concrete plates 1 of different manufacturing lots are joined together, it is possible to prevent the surface pattern displacement and the like. .

In the above embodiment, the engaging portion 34 is provided on the rear portion of the surface mold 30 and the engaged portion 22 is provided on the support base 20.
However, it is not limited to this,
The engaging portion 34 may be provided on the support base 20, and the engaged portion 22 may be provided on the surface mold 30. It may be changed appropriately. In addition, in the suspension mechanism 70, the support member 71 is attached to the side surface mold 4
Although it is fixed to 0, the present invention is not limited to this, and the support base 20
It may be fixed to. Further, although the above-mentioned embodiment is for molding the concrete plate 1 having the ridge portion 2, the present invention is not limited to this, and it goes without saying that the concrete plate 1 of various shapes can be applied.

[0036]

As described above, according to the concrete plate molding apparatus of the present invention, the side mold can be moved between the mold releasing position and the molding position on the support base, which facilitates the movement. Therefore, even if there are a plurality of side molds, the mold assembly and the mold releasing can be easily performed, and the working efficiency can be greatly improved.

When molding concrete boards having different surface designs, the supported surface mold is removed from the support base, and another surface mold having a different mold surface is newly attached to the support base. Since the mold body is a separate body from the support base provided with the side mold body, the structure can be made simple and the size can be reduced accordingly, so that the attachment / detachment work can be easily performed, and the work efficiency can be greatly improved. . In addition, since the surface mold can have a simple structure and can be made compact, the surface mold can be easily manufactured, and various kinds of surface molds can be easily prepared, which also improves the efficiency. As a result, it is possible to significantly improve the manufacturing efficiency when manufacturing various types of concrete boards, and it is possible to reduce the cost.

Further, when the surface mold and the support base are attached and detached by the engaging part and the engaged part, the positioning of the surface mold can be made accurate and the surface mold is repeated. Even if it is exchanged, the surface mold can always be placed in the normal position. Therefore, even if the concrete plates from different production lots are joined together, it is possible to prevent the pattern shift of the surface thereof.

Furthermore, when the side mold body is composed of a main mold body and a partial mold body movable in a direction different from the moving direction of the main mold body, the mold can be easily moved by moving the partial mold body. Can be prevented from interfering with the product.

Further, when a part of the side mold is constructed as a mold for opening the holding part, the projecting part of the concrete plate can be made to escape from the holding part, and the projecting part of the concrete plate can be easily removed. Can handle.

Further, a fixing metal fitting of a suspension mechanism which is embedded in a concrete plate and suspends a protruding member protruding from the concrete plate, a pin whose end is bent to hold the protruding member on a support member, and a magnet which is attracted to the protruding member. If it is configured to include and, the work of positioning and removing the projecting material can be significantly simplified and the work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a concrete plate molding apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a concrete board molding apparatus according to an embodiment of the present invention.

FIG. 3 is a plan view showing a concrete plate molding apparatus according to an embodiment of the present invention.

FIG. 4 is a plan view showing a support base of the concrete board molding apparatus according to the embodiment.

FIG. 5 is a rear view showing the surface mold of the concrete plate molding apparatus according to the embodiment.

FIG. 6 is a side view taken along line X in FIG. 5 showing a surface mold of the concrete plate molding apparatus according to the embodiment.

FIG. 7 is a side view of the surface mold of the concrete plate molding apparatus according to the embodiment when viewed from Y in FIG.

FIG. 8 is a perspective view of a main part of a support base and a surface mold of the concrete board molding apparatus according to the embodiment.

FIG. 9 is a cross-sectional view of a main part of a support base and a surface mold of a concrete board molding apparatus according to an embodiment.

FIG. 10 is a perspective view of essential parts showing a side mold of the concrete plate molding apparatus according to the embodiment.

FIG. 11 is an exploded perspective view of essential parts showing a suspension mechanism of the concrete board molding apparatus according to the embodiment.

FIG. 12 is a cross-sectional view showing a suspension mechanism of a concrete board molding apparatus according to an embodiment.

FIG. 13 is a process chart showing the operation of the concrete plate molding apparatus according to the embodiment.

FIG. 14 is a diagram showing an operation at the time of mold release of the concrete board molding apparatus according to the embodiment.

FIG. 15 is a perspective view showing an example of a concrete board molded by the molding apparatus according to the embodiment.

FIG. 16 is a perspective view showing another example of the concrete board molded by the molding apparatus according to the embodiment.

FIG. 17 is a diagram showing an example of constructing a concrete plate molded by the molding apparatus according to the embodiment.

FIG. 18 is a perspective view showing an example of a conventional concrete plate molding apparatus.

[Explanation of symbols]

1 concrete board 2 protrusion 3 recess 4 shafts 20 Support 22 Engagement part 30 Surface type 34 Engagement part A molding position B Release position 40 side body 41 variant side type 42 Flat side type 50 main body 51 partial mold 52 Link mechanism 53 Enclosure 54 minute type 70 Suspension mechanism 71 Support member 72 Fixing bracket 75 pin 77 magnet

Claims (5)

[Claims] 1. A concrete plate molding apparatus for molding the surface and side surfaces of a concrete plate, a support base, a surface mold body that molds the surface of the concrete plate and is detachably supported on the support base, and the concrete plate. And a side surface mold body provided on a support so as to be movable to two positions of a molding position of the side surface and a mold releasing position separated from the molding position. 2. A plurality of engaging portions having recesses that are released in the mold surface direction of the surface mold are provided on one of the rear portion of the surface mold and the support base, and the rear part of the surface mold and the support base are provided. On either side is provided an engaged portion with which the concave portion of the engaging portion engages by the movement of the surface die in the die surface direction, and by engaging the engaging portion and the engaged portion, the surface die is formed. The concrete plate molding apparatus according to claim 1, wherein the concrete plate molding apparatus is positioned on a support base. 3. The side mold body is composed of a main mold body and a partial mold body, and the partial mold body is movable in a direction different from a moving direction of the main mold body to a releasing position. The concrete plate molding apparatus according to claim 1 or 2, which is connected to a body. 4. The side mold has a wrapping part for wrapping a projecting part projecting from the side surface of the concrete plate, and a part of the side mold is separated so that the projecting part is separated from the wrapping part. 4. The concrete board molding apparatus according to claim 1, wherein the molding apparatus is configured as a mold for opening the holding portion so that it can be escaped. 5. A suspension mechanism for suspending a projecting member projecting from the rear surface of a concrete plate, wherein the suspending mechanism includes a support member fixed to the support stand or the side mold, and a supporting member for supporting the projecting member. The fixing bracket is formed by including a pin that penetrates through the supporting member and the protruding member and has its tip bent to hold the protruding member on the supporting member, and a magnet that attracts the protruding member. The concrete plate molding apparatus according to claim 1, 2, 3, or 4, characterized in that.