JPH01297213A - Form for manufacturing precast concrete panel - Google Patents

Abstract

PURPOSE:To contrive to remarkably improve the production of precast concrete panel by a constitution wherein movable side plates are allowed to move on a surface plate through sliding means. CONSTITUTION:A second movable side plate 25 is produced by fixing a mounting plate, the length of which corresponds to the length of the short side of a precast concrete panel to be cast, and a side mold 30 to a movable frame 26 and, after that, moved on the surface plate 1 along the direction indicated with the arrows B through a sliding means 35 in order to set the distance between a second fixed side plate 7 and the second movable side plate 25 equal to the length of the long side of the precast concrete panel to be cast. Next, a first movable side plate 20 is moved along the direction indicated with the arrows A through a sliding means 19 so as to abut a side mold 23 mounted to the first movable side plate 20 against the end of the second movable side plate 25. Under the conditions as just described above, fixing pins 38 are inserted in through holes 37 of the respective movable side plates 20 and 25 in order to fix the movable side plates 20 and 25 to the fixed side plates 3 and 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a formwork for manufacturing precast concrete panels for pouring and solidifying cement slurry.

(Conventional technology) Precast concrete panel (hereinafter referred to as "PC panel")
) is manufactured by pouring cement slurry into a formwork in which reinforcing bars, anchor fittings, etc. have been placed in advance, allowing it to solidify, and then removing it from the mold. Conventionally, the formwork has been constructed by fixing side plates surrounding the four sides of the PC panel onto a surface plate using bolts or the like.

(Problem to be Solved by the Invention) However, PC panels are often produced in response to orders, and their shapes and dimensions generally vary. For this reason, with conventional formwork, each time a product with a different size is manufactured, the user is forced to remove the bolts, move the side plate, and then fix the side plate at the required position again with the bolts. This work took a long time due to the fact that a typical PC panel is over 4m long, the side panels are heavy, and they are fixed using many bolts. This was a hindrance to improving productivity.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a formwork for manufacturing precast concrete panels that can be easily changed to different J method specifications and improve productivity.

[Structure of the Invention] (Means for Solving the Problems) A formwork for manufacturing a precast concrete panel according to the present invention is provided by forming first formworks on a surface plate installed substantially horizontally such that their extension directions are substantially perpendicular to each other. and a second fixed side plate arranged in an L-shape, extending parallel to the first fixed side plate so that the surface plate can be moved along the extending direction of the second fixed side plate via a sliding means. A first movable side plate is placed on the
The second movable side plate is arranged so as to extend parallel to the fixed side plate and move on the surface plate in the extending direction of the first fixed side plate via a sliding means. Claim 1).

In this case, the sliding means comprises a fixedly arranged guide rail and
The slider block may be configured to fit and slide on the guide rail (Claim 2).

Furthermore, when the sliding means is configured in two series, a pair of guide rails constituting the sliding means for each of the first and second movable side plates are provided corresponding to both ends of each movable side plate, It is also possible to fix one of the pair of guide rails to the stationary side plate, and to separate the other from the surface plate and fix it parallel to the one guide rail (Claim 3).

In addition, anchor fittings are generally embedded in the PC panel, and in that case, a support member for holding the anchor fittings in a suspended state is movable along the guide rail that constitutes the sliding means described above. It is also possible to provide one (Claim 4).

On the other hand, the end faces of PC panels need to be shaped into a predetermined end face shape in order to enable a sealing structure between the PC panels attached to the building frame.
For this purpose, a side mold for shaping the end face shape of the PC panel may be attached to each fixed side plate and movable side plate so as to be replaceable (Claim 5).

In addition, a groove extending along the moving direction of the movable side plate is formed in the fixed side plate, and a through hole corresponding to this groove is formed in the movable side plate, and the movable side plate is press-fitted into the groove through the through hole. It may be fixed using a fixed pin (Claim 6).

(Function) According to the invention of claim 1, when changing the dimensions of the PC panel to be manufactured, each of the first and second movable side plates is moved according to the dimensions of the longitudinal groove of the PC panel. Good. In this case, since each movable side plate can be smoothly moved by the sliding means, work for changing specifications becomes extremely simple and quick.

According to the invention as claimed in claim 2, since the slider block is fitted into the guide rail, it is possible to prevent the movable side plate from slipping or coming off the rails when moving the movable side plate, thereby making the movement smoother, and the position of the guide rail can be freely arranged. becomes more sexual.

According to the third aspect of the invention, sliding means are provided corresponding to both ends of the movable side plate, so even a large movable side plate can be moved more smoothly, and one guide rail can be moved away from the surface plate. Since it is fixed in place, when washing the surface of the surface plate with water, drainage is carried out smoothly, making cleaning work easier.

According to the fourth aspect of the present invention, since the hanging member can be moved along the guide rail, it becomes easy to adjust the buried position of the anchor fitting. Furthermore, since the guide rail of the movable side plate is used, it is efficient and rational, and the mechanism can be simplified.

According to the invention of claim 5, the end face shape of the PC panel can be changed by replacing the side mold, and it is possible to flexibly deal with changes in not only the dimensional specifications but also the shape specifications.

According to the invention of claim 6, since the groove formed in the fixed side plate extends along the moving direction of the movable side plate, the fixed position of the movable side plate can be set steplessly.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

The overall configuration is as shown in FIG. 1, in which a surface plate 1 with a smooth surface is installed approximately horizontally with legs 2. This surface plate 1 is made of, for example, a steel plate, and has a vertical direction (longitudinal direction) dimension of about 4.9 ms and a lateral force direction dimension of about 2.8 m. Surface plate 1
A first fixed side plate 3 is disposed on one edge of the vertical side of the housing 3 so as to form a wall extending in the vertical direction. As shown in FIG. 2, this is fixed to the surface plate 1 with bolts 4 passed through from the back side of the surface plate 1. Furthermore, a side mold 5 for forming the shape of the end face on the long side of the PC panel is attached to the first fixed side plate 3 with bolts 6, and by removing the bolt 6, it can be molded into other shapes. can be exchanged with

On the other hand, a second fixed side plate 7 is provided on one side edge of the surface plate 1 in the lateral direction so as to form a wall that extends in the lateral direction continuously with the first fixed side plate 3 . This is continuously arranged in an L-shape so as to be substantially perpendicular to the first fixed side plate 3, and is also fixed to the surface plate 1 with bolts 8, as shown in FIG. As shown in the same figure,
A side mold 9 is also removably fixed to this second fixed side plate 7 with bolts 10, and thereby the shape of the end face of the short side of the PC panel is formed.

Now, an inverted-shaped rail support 1 faces the first and second fixed side plates 3.7 configured in an L-shape as described above.
1 is provided. This rail support 11 is a surface plate 1
The support arm 12 is fixed to the leg 2 via a support arm 12 with a space provided therebetween. On the other hand, guide rails 13, 14 are fixed to the outer surfaces of the first and second fixed side plates 3.7 so as to extend substantially horizontally (see FIGS. 2 and 3).
On the other hand, guide rails 15, 16 of the same shape are fixed on the rail support 11 so as to be parallel to the guide rails 13, 14, respectively (see FIGS. 4 and 5).

Among these four guide rails, the pair of guide rails 14.16 on the shorter side constitutes a sliding means 19 together with the slider block 17.18 fitted thereto, whereby the first guide rail 14.16 is placed on the surface plate 1. A first movable side plate 20 provided parallel to the fixed side plate 3 is movable. This first movable side plate 2
0, a connecting arm 21 is attached to the end on the second fixed side plate 7 side, and the slider block 17 is fixed thereto, and a slider block 18 is attached to the opposite end via a seat 22. is fixed. With this, each slider block 17.18 slides with respect to each guide rule 14.16, so that the first movable side plate 20 moves onto the surface plate 1.
It is possible to move freely along the extension direction of the second fixed side plate 7 while in contact with the second fixed side plate 7 (the moving direction is
(Indicated by arrow A in the figure). The end of the first movable side plate 20 on the second fixed side plate 7 side has a shape that matches the side mold 9 attached to the fixed side plate 7, so that the position of the first movable side plate 20 can be adjusted. Regardless of the situation, the end surface on the second stationary side plate 7 side can maintain a state in which it is substantially in close contact with the side mold 9. As shown in FIG. 5, a side mold 23 is also removably attached to this first movable side plate 20 with bolts 24, so that the shape of the long side end face of the PC panel can be formed.

On the other hand, a pair of guide rails 13 and 15 on the long sides are provided in parallel to the first fixed side plate 3 and the rail support 11, respectively.
In between, there is a second movable side plate 25 parallel to the second fixed side plate 7.
is provided. This second movable side plate 25 is connected to the first fixed side plate 3 and the first movable side plate 20 as shown in FIG.
and a mounting plate 28 that is removably attached to the movable frame 26 with bolts 27 and located between the second fixed side plate 7 and the first movable side plate 20, as shown in FIG. A side mold 30 is replaceably attached to this mounting plate 28 with bolts 29. As shown in FIG. 5, a slider block 32 is horizontally fixed to the movable frame 26 at the end (left end in the figure) on the side of the first fixed side plate 3 via support legs 31. A slider block 34 is fixed downwardly to the end on the side plate 20 side (right end in the figure) via support legs 33. These slider blocks 32.34 fit on the guide rail 13.15 and constitute sliding means 35 for the second movable side plate 25, and both slider blocks 32.34 fit on the guide rail 13.15. By fitting and sliding, the second movable side plate 25 connects to the second fixed side plate 7.
The first fixed side plate 3 is moved over the surface plate 1 while maintaining the parallel state with the
(The direction of movement is shown by arrow B in FIG. 1).

In addition, as shown in Figures 2 to 5, the first and second
each of the fixed side plates 3 and 7 and each of the first and second movable side plates 2
A groove 36 is formed on the upper surface of the 0.25 mm along the direction of extension thereof, and a rubber plate 36a is provided on the inner surface of the groove 36 to face each other. On the other hand, at both ends of each movable side plate 20.25, a through hole 37 is formed at a position corresponding to the groove 36, into which a fixing pin 38 can be inserted. This fixing pin 3
8 is inserted into the through hole 37 so that the tip thereof is in the groove 3.
The movable side plates 20, 25 are press-fitted between the rubber plates 36a in the movable side plates 20, 25, and the movable side plates 20, 25 become immovable.

Furthermore, two guide rails 39.40 having the same shape as each of the guide rails 13 to 16 are fixed to the sides of each of the first and second movable side plates 20.25 so as to extend substantially horizontally.

Of these, the guide rail 39 provided on the first movable side plate 20 movably supports a hanging member 41 that holds an anchor fitting (not shown) for PC panel demolding in a suspended state within the formwork. Although not shown, the hanging member 4
A slider block that fits and slides on the guide rail 39 is fixed to 1. The guide rail 40 provided on the second movable side plate 25 also supports a hanging member 43 that holds an anchor fitting 42 for mounting a PC panel (indicated by a broken line in FIG. 6) in a suspended state within the formwork. This is for movable support, and as shown in the same figure, there is also a guide rail 4.
A slider block 44 that fits into and slides on the slider block 44 is fixed.

On the other hand, the first fixed side plate 3 is provided with a hanging member 45 having a slider block (not shown), and the slider block is connected to the guide rail 1 provided on the first fixed side plate 3.
The hanging member 45
The second movable side plate 25 is movable using the guide rail 13 that constitutes a sliding means 35 for the second movable side plate 25. This hanging member 45 holds a demolding anchor fitting (not shown) embedded in the PC panel in a suspended state. In addition, a slider block 4 is provided on the second fixed side plate 7.
6 (see FIG. 3), the slider block 46 of which slides by fitting into the guide rail 14 provided on the second stationary side plate 7. The member 47 is movable using the guide rail 14 which constitutes the sliding means 19 for the first movable side plate 20. An anchor fitting 48 for mounting a PC panel is held in a suspended state on this hanging member 47 (
(indicated by the two-dot chain line in Figure 3).

Next, a procedure for manufacturing a PC panel using the formwork having the above configuration will be explained. First, a mounting plate 28 and a side mold 3 whose length corresponds to the short side dimension of the PC panel to be molded are prepared.
0 to the movable frame 26 to form the second movable side plate 25, and by moving this on the surface plate 1 via the sliding means 35 in the direction of arrow B in FIG. The distance from the side plate 7 is set equal to the long side dimension of the PC panel to be molded. Next, the first movable side plate 2
0 along the direction of arrow A in FIG. Thereby, the distance between the first movable side plate 25 and the first fixed side plate 3 is set equal to the short side dimension of the PC panel to be molded. Therefore, fixing pins 38 are inserted into the through holes 37 of each movable side plate 20.25 to fix the movable side plate 20.25.

The order of movement of the first and second movable side plates 20.25 is as follows:
The above may be reversed. After this, reinforcing bars (not shown) are placed in the square area surrounded by the re-fixed side plates 3, 7 and both movable side plates 20.25, and the hanging members 41, 43.4
5. At 47, the anchor fittings 42 and the like are held in a suspended state. After that, cement slurry is poured into the formwork and allowed to solidify to complete a PC panel of the required dimensions. Therefore, after moving the first and second movable side plates 20 and 25 in the mold opening direction, the PC panel may be lifted up by a crane or the like using the anchor fittings and removed from the mold.

After manufacturing the required number of PC panels in this way,
To manufacture PC panels with different specifications in vertical and horizontal dimensions, proceed as follows. First, the mounting plate 28 and side mold 30 of the second movable side plate 25 are removed and replaced with ones corresponding to the new short side dimensions of the PC panel. On top of that, the first
and each second movable side plate 20.25 by sliding means 19.35.
By moving the movable side plates 20 and 25 through the PC panel, a formwork corresponding to the vertical and horizontal dimensions of the PC panel is constructed, and each movable side plate 20.25 is fixed with the fixing pin 38. Then, in the same manner as described above, reinforcing bars and the like may be placed within the formwork and cement slurry may be poured into the formwork.

Note that when changing only the long side dimension without changing the short side dimension, it is sufficient to simply move this on the surface plate 1 without replacing the mounting plate 28 and the like of the second movable side plate 25. Further, when changing the end face shape of the PC panel, only the side molds 5, 9, 23, and 30 provided on each movable side plate and fixed side plate need to be replaced.

As described above, according to this embodiment, when changing the dimensional specifications of the formwork, it is only necessary to slide each movable side plate 20.25 using the sliding means 19.35. Compared to the previous work where it was necessary to remove the bolts, lift and move the side plate, and then fix it with bolts, the work is much simpler and takes less time, and the PC Productivity in panel manufacturing will be greatly improved. Furthermore, in this embodiment, the sliding means 19.35 has a structure in which the slider block 17 and the like fit into the guide rail 13 and the like, so that it differs from the general structure in which wheels simply run on rails. Each movable side plate 20.2
It is possible to prevent slippage and derailment when moving the wheel 5, thereby making the movement even smoother.

In addition, as shown in FIG. 2 or 3, the guide rail 1
3.14 can be fixed to the side, increasing flexibility in the arrangement position of the guide rail.

Furthermore, in this embodiment, sliding means 19.35 are provided corresponding to both ends of each movable side plate 20.25, and one guide rail 15.16 is fixed apart from the surface plate 1. By moving the movable side plate 20.25 to the outside of the surface plate 1, the side of the surface plate 1 opposite to the fixed side plate 3.7 becomes open to the outside, and when washing the surface of the surface plate 1 with water, the surface plate 1 Water can be drained smoothly, and the cleaning work of the surface plate 1 becomes easy.

Further, since the hanging member 41 and the like for fixing the anchor fitting 42 in a suspended state can be moved along the guide rail 13 and the like, it becomes easy to adjust the buried position of the anchor fitting 42 and the like. Moreover, since the hanging members 45.47 in particular are moved using the guide rails 13.14 originally provided for the first and second movable side plates 20.25, it is possible to move the hanging members 45.47 efficiently and efficiently. This makes it possible to simplify the mechanism.

In addition, in this embodiment, since the side molds 5 and the like are attached to each side plate in a replaceable manner, the end face shape of the PC panel can be changed by replacing the side molds 5 and the like.
It is possible to flexibly deal with changes in not only dimensional specifications but also shape specifications.

Then, while forming grooves 36 in each fixed side plate 3, 7,
Since each movable side plate 20.25 is fixed with a fixing pin 38 having a through hole 37 formed in each movable side plate 20.25, the fixing position of each movable side plate 20.25 can be set steplessly. can.

It should be noted that the present invention is not limited to the embodiments shown in the above-mentioned drawings. For example, if an opening is required in the PC panel, the opening can be formed at the required position on the surface plate 1. Various modifications can be made without departing from the scope of the invention, such as by arranging a formwork.

[Effects of the Invention] As described above, according to the formwork for manufacturing precast concrete panels of the present invention, the movable side plate is configured to be movable on the surface plate via the sliding means, so that different dimensional specifications can be achieved. This has an industrially beneficial effect in that it can be easily changed and productivity can be greatly improved.

Furthermore, when the sliding means is configured to have a fixedly arranged guide rail and a structure in which it slides by fitting into this guide rail, it is possible to prevent the movable side plate from slipping or coming off when moving, and to make the movement even smoother. Further, there is an advantage that the guide rail can be arranged more freely.

Furthermore, by adopting the various aspects already mentioned, it is possible to smoothly drain water from the top of the surface plate, making cleaning work easier, making it easier to adjust the buried position of the anchor fittings, and changing the dimensions by replacing the side mold. It is now possible to flexibly deal with changes in not only the specifications but also the shape specifications, and it is also possible to obtain many significant effects such as being able to set the fixed position of the movable side plate steplessly. It is.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall perspective view, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG.
The figure is a cross-sectional view taken along line ■-■ in Figure 1, Figure 4 is a cross-sectional view taken along line IV-■ in Figure 1, and Figure 5 is a cross-sectional view taken along line IV-■ in Figure 1.
A sectional view taken along the line V-■ in the figure, Figure 6 is a cross-sectional view taken along the line V-■ in the figure.
FIG. 3 is a cross-sectional view taken along the l-Vl line. In the drawing, 1 is the surface plate, 3 is the first fixed side plate, 5°9.23
．． 30 is a side mold, 7 is a second fixed side plate, 13, 14, 15
．． 16 is a guide rail, 17.1g. 32. 34 is a slider block, 20 is a first movable side plate, 25 is a second movable side plate, 36 is a groove, 37 is a through hole,
38 is a fixing pin, 41, 43, 45° 47 is a hanging member,
42 is an anchor fitting.

Claims (1)

[Claims] 1. A device for manufacturing a precast concrete panel of a predetermined shape by pouring and solidifying cement slurry, comprising: a surface plate installed approximately horizontally; first and second fixed side plates arranged in an L-shape so that their extension directions are substantially perpendicular; a first movable side plate disposed so as to be movable along the extension direction of the fixed side plate;
and a second movable side plate arranged to be movable along the extension direction of the fixed side plate. 2. The precast concrete according to claim 1, wherein the sliding means comprises a guide rail fixedly arranged on the surface plate side and a slider block that fits and slides on the guide rail. Formwork for panel manufacturing. 3. A pair of guide rails constituting sliding means for each of the first and second movable side plates are provided corresponding to both ends of each movable side plate, and one of the pair of guide rails is provided on the fixed side plate. 3. The formwork for manufacturing a precast concrete panel according to claim 2, wherein the formwork for manufacturing a precast concrete panel is fixed to one of the guide rails, and the other is fixed parallel to the one guide rail apart from the surface plate. 4. Claim 2, characterized in that the hanging member for holding the anchor fitting to be embedded in the precast concrete panel in a suspended state is provided so as to be movable along a guide rail constituting the sliding means. Or the formwork for producing precast concrete panels according to 3. 5. Claims 1 to 4, characterized in that a side mold for shaping the end face shape of the precast concrete panel is replaceably attached to each fixed side plate and movable side plate.
Formwork for manufacturing precast concrete panels as described in any of the above. 6. A groove extending along the moving direction of the movable side plate is formed in the fixed side plate, and a through hole corresponding to this groove is formed in the movable side plate, and each movable side plate is press-fitted into the groove through the through hole. The formwork for producing a precast concrete panel according to any one of claims 1 to 5, wherein the formwork is fixed by a fixing pin.