KR960012035B1 - Process for molding of concrete plate and apparatus thereof - Google Patents

Abstract

The apparatus and method assembles vertically a plurality of horizontally movable forming molds, fills up concrete in the mold assembly, and separates the concrete plates from the mold assembly so as to make possible mass-production. The apparatus comprises: a pair of rails(21) installed in parallel; a plurality of sliders(22) sliding on the rails; the mold assembly(26) formed on the sliders(22) by closely assembling a plurality of partitions(28); side forming members(31) equidistantly fixed on a surface facing against the partitions(28); a floor forming member(32) fixed under the side forming members(31); a hollow center member(41); 2 end member(42) inserted into both ends of the center member(41).

Description

Method and apparatus for forming concrete PC board

1 (a) and (b) are perspective and side views schematically showing a method and apparatus for forming a concrete PC sheet according to the prior art;

2 is a perspective view showing a forming apparatus of a concrete PC sheet according to a first embodiment of the present invention.

3 is an exploded perspective view of the side molding member used in the molding apparatus of FIG.

4 is an enlarged perspective view of a circle A portion of FIG.

5 is a cross-sectional view taken along line V-V of FIG. 2 showing a mold assembly in which the mold of the present invention is assembled.

6 is a schematic view showing a method of molding a molded body using the molding apparatus of the present invention.

7 (a) to 7 (c) show a second embodiment of the present invention. FIG. 7 (a) is a cross sectional view of a mold, and FIG. 7 (b) is a perspective view of the molded body thereof. (c) is a perspective view which shows the use example.

8 (a) and 8 (b) show a third embodiment of the present invention, in which FIG. 8 (a) is a cross sectional view of the mold, and FIG. 8 (b) is a perspective view of the molded body thereof.

9 (a) and 9 (b) show a fourth embodiment of the present invention, in which FIG. 9 (a) is a cross sectional view of a mold, and FIG. 9 (b) is a perspective view of the molded body thereof.

10 is a perspective view showing an example of a molded article produced by another embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

20: forming apparatus 21: rail member

22: micro member 23: support member

24: pulley 25: forming mold

26: forming frame assembly 27: support member

28: forming frame bulkhead 31, 51, 61, 71: side forming member

32: bottom forming member 33,34: end corner member

41: center member 42: end member

52: side flap member

The present invention relates to a method and apparatus for forming a concrete PC sheet, and in particular, to form a mold assembly by assembling a plurality of horizontally movable molds vertically to form a mold assembly and filling the mold at once the concrete to perform the molding The present invention relates to a method and apparatus for forming a concrete PC sheet material suitable for mass production, in which a molded product is demolded from a mold while separating each molded body from the mold assembly.

In the case of manufacturing conventional concrete wallboard, since the concrete wallboard and its molded body are heavy and in particular, the molding frame is a large, large steel sheet forming frame that cannot be transported, assembled and demolded by manpower, the iron plate is laid on the ground and the iron plate bottom surface is To form a box-shaped mold by blocking the wall on the outer periphery of the pipe, inject concrete into it, and then vibrate the concrete with the vibrating rod of the hand-operated vibrator to remove air bubbles, select the surface, cover it with a tent, and cure and harden it with steam. PC wallboard has been molded. In this case, to facilitate demoulding, the upper part of the outer peripheral wall surface of the molded body is inclined out of the mold, and the hole for forming a square or circular hole (such as a fence perspective hole or a window hole) in the molded body (PC wall plate). The side of the molding member for the hole must be inclined so that the upper surface of the molding member is wider than the lower surface. Accordingly, there is an aesthetic problem because the outer surface of the molded body itself is inclined and the size of the front and back of the hole formed in the molded body is different. In addition, since the mold is placed on the ground and molded, not only double-sided molding is possible, but also the mold is formed on the ground, which requires a lot of space, and it is required to be plastered by hand to flatten the upper surface where concrete is injected. It was not suitable for mass production.

In order to solve this problem, as shown in Figs. 1 (a) and (b), the applicant's utility model registration application No. 85-1512 (July 25, 1985), PC edge and handrail material Forming mold plates 1 (1) ') (1) constituting the forming mold assembly (A). Protruding the inner and outer surfaces of the engaging portion (2) to maintain a predetermined distance in the vertical direction and the horizontal groove (4) formed with a flow groove (3) formed at a suitable interval at the lower end and a plurality of through holes (5) For the joint formation of PC fences and handrails, which are assembled in multiple layers by inserting the elastic material 7 having the grooves 6 formed on both sides and protrudingly installed into the locking protrusions 2 protruding from each mold 1 A molding mold was prepared. When explaining the assembly construction method thereof, as shown in FIG. 1 (b), one side locking groove 6 of the elastic member 7 is provided in the locking protrusion 2 protrudingly installed on the inner and outer surfaces of the molding frame 1. ), And then insert the gap retaining rod 8 where the through-hole 5 is appropriate, and protrude to the outer surface of the mold 1 'while attaching another mold 1'. The locking protrusion 2 is fixed to be fitted into the partition groove 6 on the other side of the elastic material 7. Thus, the mold 1, 1 '(1' ')... When laminating successively, the elastic material 7 is assembled in a state sandwiched between the protrusions 2 and the partition grooves 6 therebetween, and then fixed by applying an appropriate pressure by the fixing plate 10. At this time, each mold frame 1, 1 ', 1 " Since the elastic body 7 is not excessively compressed because this constant interval is maintained, the shape is not deformed.

However, such a molding die assembly (A) is composed of the first molding die plate 1 and the fixed plate 10 and the molding die plate 1 '(1' ') therebetween. Since it is made integrally and positioned on the ground, it is impossible to directly apply vibration to the body of the mold assembly A itself, so that the mold plate 1 '(1 ") is used at each molding. In order to remove bubbles and to completely fill the concrete filled between them, it should be molded by hand with the vibrating rod of the vibrator for manual operation. Therefore, a lot of manpower is consumed and the molding time becomes long. In addition, in the assembling of the molding die assembly A, the molding die plate 1 and the plurality of elastic members 7 must be washed one by one, and each elastic member 7 is inserted one by one in the molding die 1. It has to be tasted, and at the time of demolding, the elastic material 7 must be removed from each molded body, which is very cumbersome and inefficient. In addition, the installation cost of a facility including a press pressure fixing device for fixing the molding frame car body (A) is very expensive, and usually because only one or more molding frames (A) can be fixed per day with such a press pressure fixing device. Because of the overlap, since it is not economical as compared to the conventional production method, it has not been practically used until now.

Accordingly, an object of the present invention is to overcome the above-mentioned drawbacks, and to provide a method and apparatus for forming a concrete PC sheet that is integrally formed, easy to clean and assemble, and does not require a separate press press device. It is to prepare.

In addition, another object of the present invention is to provide a method and apparatus for forming a concrete PC sheet that can be filled with the concrete close to the molding mold by removing the bubbles of the concrete inside the molded body by vibrating the entire assembled mold assembly. .

Still another object of the present invention is to provide a molding apparatus and method for forming a concrete PC sheet suitable for mass production by increasing the effective use time of the molding apparatus by assembling the mold assembly many times a day with a molding apparatus which is an expensive fixing equipment. .

These objects of the present invention are a pair of rail members installed in parallel with each other at the top, a plurality of sliding members installed on the rail members so as to be slidable respectively, and a plurality of molding frames detachably suspended from the sliding members, respectively. It can be achieved by providing a molding apparatus for a concrete PC sheet material comprising a molding mold assembly configured by tightly assembling the partition wall.

In addition, this object of the present invention, in a method of forming a concrete PC sheet material by combining a plurality of forming molds, forming the forming mold and at the same time to move each forming frame partition wall with a forming member or the like in the horizontal direction. Suspending, cleaning each sprayed mold bulkhead and spraying a release agent, and preparing the mold of the mold by tightly coupling and fixing the mold bulkheads while being suspended, and placing the mold assembly on the support member. Injecting mortar into the mold assembly while suspending and vibrating, moving the mold mold with the mortar compacted to an appropriate curing place for curing and curing, and disassembling the cured and cured mold assembly to remove the molded body from the mold. It can be achieved by the molding method of the concrete PC sheet of the present invention consisting of the step of demolding.

The present invention can provide a vibration means that is integrally provided in the molding apparatus itself, or by providing a separate vibration means, by vibrating the molding die assembly itself, it is possible to reduce the manpower and time defense by the conventional manual vibrator.

In the molding frame partition wall used in the present invention, molded articles of various forms can be formed by combining various types of side forming members, bottom forming members, end curling members, and the like, as necessary.

Hereinafter, the embodiment of the present invention according to the accompanying drawings in more detail. However, it should be noted that the present invention is not limited only to this embodiment.

2 shows a concrete PC sheet forming apparatus 20 of the present invention. The molding apparatus 20 includes a pair of rail members 21 having an I beam shape installed on top of each other in parallel with each other, a plurality of sliding members 22 provided on the rail members 21 to be slidable, and the rail members. By a pair of support members 23 of I-beam shape parallel to the outside of the (1), a wire rope support member 24 fixed to the support member 23, and a plurality of forming frame partitions 28 A mold assembly 26 for forming a plurality of molds 25 to be distinguished, a pair of support plates 27a disposed under the mold assembly 26, and a pair fixed in parallel to the lower ends of both ends of the support plates 27a. One side of the supporting member 27 including the I beam 27b, and the forming frame partition wall 28 forming the forming frame 25 of the forming frame assembly 26 is suspended on the rail member 22. An end is fixed to the sliding member 22 and the other end is a sieve detachably connected to the upper end of the mold partition wall 28 (29) and one end thereof is fixed to the wire rope support member 24 so that the support member 27 supporting the mold frame assembly 26 is moved vertically with respect to the support member 23. The other end is provided with a clasp 30a so that the clasp 30a is detachably connected to the ring 27c of the I beam 27b of the support member 27 to support the support member 27. It is composed of a wire rope 30 to be detachably suspended with respect to 23).

The rail member 21 and the support member 23 in the form of an I beam are fixed by a vertical frame (not shown). The width and height between the two rail members 21 are configured to allow the chain 29 to suspend the lower mold assembly 26 appropriately and horizontally, and each support member 23 is formed on the rail member 21. The outer side of the sliding member 22 is provided so as not to interfere with the sliding movement of the sliding member 22. The sliding member 22 is for easily moving the forming frame bulkhead 28 suspended on the chain 29 fixed at one end to each sliding member 22 horizontally, the wire rope support member 24 is suitable means It is intended to suspend the molding die assembly 26 fixed to the support member 23 by a separate from the chain 29. A clasp 29a is provided at one end of the chain 29 so as to be detachably connected to the hooks 28a provided at both upper ends of each of the molding frame partitions 28.

In addition, a clasp 30a is also provided at one end of the wire rope 30 so as to be detachably connected to the ring 27c provided at the I beam 27b. The wire rope 30 is a ring of the support member 27 for receiving the clasp 30a of the wire rope 30 when lifting the support member 27 further supporting the assembled mold assembly 26 upward. 27c), the mold assembly 26 is configured to have a sufficiently short length so that it can be suspended only by the wire rod 30a, and is used for the purpose of increasing the degree of freedom for vibration. This will be described later in detail. Reference numeral 22a denotes a rotating roller.

As already mentioned, the mold assembly 26 is assembled by vertically tightly coupling by the mold partition wall 28 forming a plurality of each unit mold 25. On both sides of each of the molding frame partitions 28, the side molding members 31 fixed to each other in the vertical direction and at regular intervals are fixed to the horizontal direction and spaced apart by a set interval from the lower ends of the series of side molding members. The bottom forming member 32 for forming the lower flap, and one end for the upper end flap of the molded body are in airtight contact with the upper side end face of the side forming member 31, and the other end is the upper part of the forming frame partition 28. The L-shaped upper end flap member 33 having an extended surface and one end for the lower end flap of the molded body are hermetically contacted with the lower side end face of the side shaping member 31 and the other end is the bottom shaping member 32. An L-shaped lower end flap member 34 in hermetic contact with the end side surface of the bottom face is provided. Each side shaping member 31 and the bottom shaping member 32 and the upper and lower end flap members 33 and 34 provided on the molding frame partition 28 facing each other are configured to face each other during assembly. One mold 25 is formed. Accordingly, when the plurality of mold frame partitions 28 are closely assembled in the vertical direction and assembled and fixed, the mold frame assembly 26 in which the plurality of mold frames 25 are formed is provided.

As shown in more detail in FIG. 3, the side shaping member 31 is composed of an elongated central member 41 and end members 42 at both ends. The center member 41 is a hollow body whose cross section is U-shaped. The upper surface of the central member 41 is divided into two surfaces 41b and 4lb by the recessed portions 41a formed at the center in the longitudinal direction, and both side wall portions 41c so that the upper surface thereof is narrower than the lower surface. Is inclined. The end member 42 is inserted into the hollow portions at both ends of the central member 41 and connected to each other by a screw 43, and the heights of the two surfaces 41b of the central member 41 coincide with each other. The upper surface 42b, the inclined side wall portion 41c of the central member 41, the inclined side wall portion 42c located on the same plane, the end wall portion 42d, the end wall portion 42d and the It consists of the connection side wall part 42c between the inclined side wall part 42c. Each inclined side wall part 42c, the end wall part 42d, and the connection side wall part 42e are inclined from the bottom to the upper surface, and are comprised so that the whole side shaping | molding member 31 may easily come out from the hardened molded object. Although the inclined side wall part 42c and the end wall part 42d are comprised in the plane above, the connection side wall part 42e is comprised in the corrugated plane. This is for forming a constant pattern on the end side of the hole of the molded body.

The bottom forming member 32 and the lower end flap member 34 are shown in more detail in FIG. 4. The bottom shaping | molding member 32 is a long member in which the groove | channel 32a of the dowel groove shape was formed in the cross section. The long sealing elastic body 46 is fitted into this groove 32a. The sealing elastic members 46 are compressed to each other at the time of assembly of the mold to prevent leakage of concrete to the outside. The lower end flap member 34 is substantially L-shaped and one end is placed in sealing contact with the end side of the bottom shaping member 32 and the other end thereof with the end side of the end member 42 of the side shaping member 31. Is placed in sealing contact. That is, the other end of the lower end curl member 34 has a shape corresponding to the inclined side wall portion 42c and the connecting side wall portion 42e of the end member 42 such that the inclined side wall portion 42c and the connecting side wall portion Sealing contact with 42e.

The upper end flap member 33 is substantially the same shape as the lower end flap member 34. However, one end of the upper end curling member 33 is to the upper surface of the forming frame partition 28 unlike the one end of the lower end curling member 34 is in sealing contact with the end side of the bottom forming member 32. The only difference is the extension.

5 is a cross-sectional view taken along line V-V of FIG. 2 showing a mold assembly 26 in which a molded article of the present invention is assembled. As already mentioned, the molding frame assembly 26 has a molding frame partition wall having a side molding member 31, a bottom molding member 32 and an upper end curling member 33 and a lower end curling member 34 on both sides thereof. 28 is formed by tightly coupling the plurality of mold frame partitions 28 to each other by fastening the screw 44 and the nut 45 passing through the mold frame partition wall 28. It will be appreciated that the side wall forming members 31 and the like are provided only on the inside of the forming die partition walls 28 at both ends of the forming die assembly 26 among the forming die partition walls 28.

To return to the second road again, each forming frame partition wall 28 is configured to be movable horizontally while suspended by the rail member 22 by the chain 29 and the sliding member 22. Therefore, even if a large number of mold frame bulkheads 28 are provided, the mold frame bulkheads 28 can be easily moved and joined to both ends of the rail member 22, thereby cleaning the mold frame bulkhead 28, releasing agent spray and It is possible to minimize the space for assembly and disassembly.

In particular, it is possible to easily move by the sliding member 22 on the rail member 21, unlike the prior art that the molding frame partition 28 is heavy because of the heavy weight.

Now, a method of molding a molded body 50 such as a concrete PC sheet using the molding apparatus 20 according to the present invention having the above configuration will be described with reference to FIGS. 2 and 6.

First step: cleaning the mold

Molding frame surface cleaning pushes the molding frame partition 28 to one side of the rail member 21, and cleans the molding frame partition 28 and the side molding member 31 attached thereto with a brush or the like. At this time, it is easy to clean the molding die partition wall 28 because it can be moved to the assembly place while cleaning one by one. In addition, since the molding frame 28 itself is large, it is also possible to use electrophoresis, and the use of electrophoresis is advantageous to increase its productivity. Particularly, since the molding frame partition wall 28, the side molding member 31, the bottom molding member 32, the upper and lower end curl members 33, 34, etc., which form the molding mold 25 are integrated, they are conventionally known. Unlike, it is possible to clean while hanging on the rail member 21 without having to clean each member separately.

2nd step: releasing mold spray and forming mold assembly

After cleaning the surface of all the molds, spray the release agent onto the mold bulkhead 28 using the sprayer, and move the mold mold bulkhead 28 to the support plate 27 to be joined, and then bolts 44, 5 ) And the nut 45 (FIG. 5) are fastened through the hole provided in the mold partition wall 28 to fix the mold assembly 26. According to such a method, since it is possible to hold | maintain each shaping | molding die partition 28 on the rail member 21, spraying of a mold release agent, and assembling and a high precision of the molded object can raise the productivity.

Stage 3: Mortar Injection and Mold Vibration

The molding mold assembly 26 assembled as described above is a rail member by the loop 28a of each forming mold partition 28 and the latch 29a of the chain 29, and the chain 29 and the sliding member 22. It is suspended on (21). When the support member 27 located at the bottom of the mold assembly 26 is lifted up using a carriage, the mold assembly 26 is supported on the support member 27 and the chain 29 is loosened. At this time, if each latch (30a) of the wire rope 30 is hooked to each ring (27c) of the support member 27, lowering the stopper, the forming mold assembly 27 is suspended only by the chain (29). Thus, the mold assembly 27 has a large degree of freedom for vibration. After the opening, the vibration device 45 installed on the outer surface of the mold assembly 26 is operated to inject mortar from the upper part of the mold assembly 26 while vibrating in the air, thereby forming the mold formed between the mold compartment partitions 28. The mold 25 is filled with mortar. This is because the mold assembly 26 suspended on only four wire ropes 30 in the air, as if the vibration of the gong hanging on the string, freely vibrates so that the mortar is filled without clogging. Vibration may be performed on a vibration installation installed in a separate place. After that, the upper part of the mold assembly 26 is evenly flattened with an even or trowel.

According to this, since the operation | work which injects mortar into all the molded objects is performed at once, the operation | work is very easy.

Fourth Step: Curing

Mortar-filled molding die assembly 26 is lifted by a cart or the like to separate the wire rope 30 from the supporting member 27 and then moved to an appropriate curing elder for curing by a known method.

5th step: Molding mold release

After carrying the cured mold assembly 26 to the carriage car, the latch 29a of the chain 29 was suspended from the hooks 28a of the mold partition wall 28 and suspended on the rail member 21, respectively. When the bolt 44 and the nut 45 are loosened, and the molding die partition wall 28 is demolded one by one, each molded body 50 can be pulled out from each molding die 25. Therefore, manufacture of the molded object 50 is completed.

In the above, the process of assembling and demolding one mold assembly 26 is described. However, since a plurality of mold mold assemblies 26 are actually used, the working order may be different.

That is, when the mold casting assembly 26 for curing at the curing step of the fourth step to the curing place, the molded device 20 is empty. Therefore, the new molding die assembly 26 is moved to this molding apparatus 20. This can be done by placing another mold assembly 26 already in operation in this forming apparatus 20. Accordingly, the molding demoulding step of the fifth step is performed by demolding the molded body 50 by disassembling the already formed mold assembly 26. In this way, since the molding apparatus 20 of the present invention, which is an expensive equipment, can be used all the time during the working time, the assembly and demolding of the plurality of mold forming assembly 26 is performed even in one day. Therefore, time and space savings are achieved, which is suitable for mass production.

In addition, in the molding apparatus of the present embodiment, the support member 23, the wire rope support member 24, the support member 27, and the wire rope 30 are provided together, but as described in the process step of FIG. It is also possible to move the molding die assembly 26 filled with the mortar to a vibrating facility provided with a separate vibration device to fill the morotar thereafter to move to a curing place to cure.

7 (a) to 7 (c) show a second embodiment of the present invention. In the molding apparatus according to the second embodiment, the trapezoidal side molding members 51 and the side curl members 52 are alternately provided in place of the side molding members 31 of the first embodiment provided to face each other. The side shaping | molding member 51 is spaced apart from the shaping | molding partition partition 28 which opposes by a fixed space | interval, and the side mortar member 52 is comprised so that it may be in intimate contact with the opposed shaping | molding die 28. In addition, since the side shaping | molding member 51 and the side curling member 52 are simple trapezoidal pillar shape, it does not need a separate end-curing member. Therefore, the mortar PC board | plate material shape | molded using this shaping | molding apparatus is the molded object 60 whose cross section has a trapezoidal waveform. When the two molded bodies 60 are stacked up, they have a columnar shape as shown in FIG. 7 (c), and FIG. 7 (c) shows the molded body 50 according to the first embodiment and the molded body of the second embodiment ( An example using 60) is shown.

8 (a) and (b), a third embodiment of the present invention is shown. This is formed by staggering the cross-sectional side forming member 61 having a triangular cross section instead of the trapezoidal side forming member 51 and the side curling member 52 of the second embodiment, and forming the molded body 70 in the form of a triangular wave plate. It is to.

9 a and 4b show a fourth embodiment of the present invention. This is for shaping the molded body 72 in the form of a soundproof plate having a series of concave portions 72a, which can be manufactured by providing a truncated cone-shaped side-shaped member 71 in the forming mold partition 28. Can be.

It will be readily understood that the molded body 74 of FIG. 10 can be molded by installing a trapezoidal columnar side forming member so as to face the forming mold partition 28.

The forming frame partition wall 28 may be formed of an iron plate or a stainless steel plate, and the side molding members 31, 51, 61, and 71, the side curling member 52, the bottom molding member 32, and the end curling member 33, 34) is produced by casting steel or by extrusion of aluminum. Therefore, since each element constituting the mold is durable, it is possible to use it semi-permanently.

The molding apparatus of the present invention having the configuration described above has the following advantages.

First, since the molding frame partition wall 28 forming the molding frame 25 can be horizontally moved while being suspended by the sliding member 22 provided on the rail member 2l, a heavy molding frame is used one by one, for example, by using a fork crane or the like. There is no need to move. Therefore, the cleaning of the mold and the spraying of the release agent can be performed while easily moving each mold partition wall 28 by hand, eliminating the waste of manpower and time.

Second, since the plurality of forming mold partition walls 28 can be laminated by moving to one end of the rail member 21, not only can a plurality of forming molds be provided at once but also the assembling of the forming mold assembly 26 is easy. Do. In addition, there is no need for a separate assembly fixture.

Third, the mortar can be compacted by attaching a vibrating device to the mold assembly itself and vibrating the mold assembly 26 itself formed by combining a plurality of mold frame partitions 28 together to face each other. It is possible to eliminate manpower and time wasted when molding by vibrating rod.

Fourth, the mortar-filled and sufficiently compacted mold assembly 26 can be easily moved to a suitable curing place at once with a fork-lane or the like, and the already-cured mold forming assembly 26 is moved to the forming apparatus 20 at the curing place. This can be done very easily because the molded body is separated while the mold assembly 26 is dismantled while hanging on the suspension device.

Fifth, since each forming mold partition wall 28 of the forming mold assembly 26 demolding such a molding can be cleaned and sprayed with a release agent, since there is almost no rest period of the expensive molding apparatus, As the effective usage time is long, there is no waste of facility investment.

Sixth, instead of each side forming member 31 according to the first embodiment, the other side forming body members 51, 61, 71 and / or side curling members 52 may be used for the forming frame partition 28. As shown in FIG. As a result, it is possible to mold various types of molded bodies with the same equipment, so the investment of equipment is economical.

Seventh, it is suitable for mass production because it is possible to mold several molded bodies at one time with one mold assembly 26.

In the above description, a method and apparatus for forming a concrete PC sheet using concrete mortar have been described, but it will be appreciated that the material may be used by injection molding thermoplastic plastic such as polyethylene and polypropylene. Of course, in this case, a separate upper molding member and an injection hole for plastic injection should be formed. In addition, the insertion of reinforcing members such as iron cores and wire meshes into the molding frame partition wall 28 can be easily performed by providing means for properly placing them in the molding members according to a known method.

Accordingly, while the present invention has been described in terms of preferred embodiments with reference to the accompanying drawings, it should be understood that the present invention is not limited thereto. In other words, it will be understood that many variations and modifications of the invention may be made without departing from the scope of the claims of the invention.

Claims (14)

A pair of rail members 21 disposed in parallel with each other on the upper part, a plurality of sliding members 22 provided on the rail members 21 so as to be slidable, and the suspension members are detachably suspended from the sliding members 22, respectively. Forming apparatus of a concrete PC sheet, characterized in that it comprises a molding frame assembly 26 by smearing assembling a plurality of molding frame partitions (28). 2. The side molding member 31 according to claim 1, wherein the side molding members 31 are fixed to the opposite surfaces of the molding frame partitions 28 adjacent to each other so as to face each other in the vertical direction and at regular intervals, and the bottom molding members fixed in the transverse direction at the lower end thereof. 32, one end portion is in sealing contact with the end side surface of the side shaping member 31, and the other end thereof is an L-shaped upper end curling member 33 extending to the upper surface of the shaping | molding partition partition 28, and one end part. Is an end side of the side forming member 31 and the other end thereof is provided with an L-shaped lower end end member 34 in sealing contact with the end side of the bottom forming member 32; . 3. The two end members 42 according to claim 2, which are joined by the side forming member 31, the central member 41 of the hollow body, and the connecting portions 42a fitted to both ends of the central member 41, respectively. Forming apparatus for concrete PC sheet material comprising a). 4. The side wall portion of each end member 42 includes an inclined side wall portion 42c, an end wall portion 42d, and a connecting side wall portion 42e having a corrugated plane therebetween. Molding machine for concrete PC board. 2. The trapezoidal columnar shaped side surfaces 51, 52 and a plurality of side-shaped molded members according to claim 1, which are arranged on opposite surfaces of the forming frame bulkhead 28 adjacent to each other in a vertical direction so as to cross each other. A molding apparatus for concrete PC sheet material, characterized in that the bottom forming member (32) fixed in the horizontal direction is provided to be in intimate contact with the lower end portion. The triangular columnar side according to claim 1, wherein a plurality of side surfaces of the triangular columnar shape are installed in the vertical direction so as to be staggered from each other on opposite surfaces of the forming mold bulkhead 28 adjacent to each other, and the tip portion thereof is spaced apart from the forming mold bulkhead 28 by a predetermined distance. An apparatus for forming a concrete PC sheet, comprising a molding member (61) and a bottom molding member (32) fixed in the horizontal direction so as to be in intimate contact with the lower end of the side molding member. The bottom molding member 32 fixed to the lower end thereof on the opposing surfaces of the molding frame partitions 28 adjacent to each other, and the end-forming members having a rectangular columnar shape opposite to each other on both sides thereof; And a series of side molding members (71) for molding the recesses (72a). The pair of support members 23 provided in parallel outside the pair of rail members 21, and the wire rope fixing member fixed to the support members 23. (24), a wire rope (30) fixed to the wire rope fixing member (24), and a supporting member (27) provided below the mold frame assembly (26) and detachably suspended from the wire rope (30). Forming apparatus for a concrete PC sheet material comprising a). 8. The apparatus for forming a concrete PC sheet according to any one of claims 1 to 7, wherein a vibration device is attached to an outer side of the forming frame partition wall. In the method of forming a concrete PC sheet by combining a plurality of molding dies, the method comprising: suspending each forming mold partition wall 28 forming the forming mold 25 so as to be movable in a horizontal direction; 28) cleaning and spraying the release agent, smearing and fixing each mold frame partition wall 28 by suspending to prepare the mold frame assembly 26, and the mold frame assembly 26 supporting members ( 27, injecting mortar into the mold assembly 26 while suspending and vibrating onto the mold, moving the mold assembly 26 to a curing place, curing and curing, and disassembling the mold assembly 26. Demoulding a mold from the mold. 11. The method of claim 10, wherein the step of injecting the mortar is carried by carrying a mold assembly (26) and placing it on a separate vibration device. 11. The method for forming a concrete PC sheet as set forth in claim 10, wherein the molded body demolding step is performed in a state in which a molding die assembly (26) is suspended. A molded article produced by the apparatus of claim 1. A molded article produced by the method of claim 10.