JPH0768527A - Automatic form disassembling and assembling apparatus - Google Patents

Abstract

PURPOSE:To facilitate the extracting and assembling work of a heavy inner side plate by forming the inner side plate from a pair of split side plates and expanding and contracting the side plates in connection with the advance and retreat operation of a mirror plate and allowing them to advance and retreat in the same direction. CONSTITUTION:Frames 70 are connected to the inner surfaces of mirror plates 14 and bolt attaching plates 71 are attached to the frames 70 at the front and rear positions thereof and slide bolts 72 are fixed to both ends of the attaching plates 71. Both ends of pivot shafts 75 are pivotally supported on the inner surfaces of the left and right side walls of split side plates 15 surrounding a split cores 13a and the frames 70 and long guide plates 76 are attached to the pivot shafts 75 and slots 77, 78 are provided to the plates 76. The slots 77, 78 are constituted of straight line parts 77a, 78a and outside bent parts 77b, 78b. The slide bolts 72 attached to the attaching plates 71 are inserted in the respective slots. Therefore, when the mirror plates 14 are allowed to retreat along with the split cores 13a, at first, only the frames 70 are extracted and the slide bolts 72 are moved along the slots 77, 78 and the side walls 15a are separated from a concrete product and the demolding resistance between both of them is reduced and extraction can easily be performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic frame disassembling and assembling apparatus used for molding and demolding work of concrete products having recesses and the like.

[0002]

2. Description of the Related Art One form of a concrete product having the above-mentioned through holes is shown in FIG. 21 (c). The concrete product has a pair of retaining parts 101 on the back side of a surface forming part 100. Are integrally projected, and each retaining section 10
1 is provided with an arbitrary number of through holes 102.

Conventionally, this type of concrete product is shown in FIG.
It is molded by the procedure as shown in (a) to FIG. 21 (f).

FIG. 21 (a) shows a completed state of the concrete product C. In the figure, 103 is a bottom form, 104 and 105 are left and right end plates rotatably erected at both ends of the bottom form 103, respectively.
Reference numeral 106 denotes a core which is provided between the left and right end plates 104 and 105 and is made of a long and tapered rod-shaped body.

In the demolding work of the concrete product C, first, the bolts 107 provided on the base end side of each core 106 are provided.
The core 106 is peeled off by slightly pulling out the core 106 from the concrete product C by rotating the screwed screw 108, and then it is completely pulled out to the outside by human power.

Next, as shown in FIG. 21B, the left and right end plates 104 and 105 are tilted symmetrically around the lower pivots 110 and 111 by using an overhead traveling crane 109 or the like.
From the concrete product C. At this time, the left end plate 10
Since the U-shaped inner side plate 112 is integrally connected to 4, the U-shaped inner side plate 112 can also be separated from the concrete product C.

Thereafter, as shown in FIG. 21 (c), similarly, the overhead traveling crane 109 is used to pivot the outer side plates 113, 114.
115,116 Fold back and forth around the concrete product C
The outer side plates 113 and 114 are peeled from the concrete product C.

As shown in FIG. 21 (d), a rod-shaped hanging metal object 11
7, the concrete product C after demolding is transferred to a desired transfer yard by the overhead traveling crane 109 and then transferred from the transfer yard to a stock yard or a construction site such as a retaining wall.

To do this.

Thereafter, after cleaning each formwork portion, the overhead traveling crane 109 is used to perform the reverse procedure, as shown in FIG.
As shown in, the left and right end plates 103, 104, U are placed on the bottom mold 103.
The letter-shaped inner side plate 112 and the outer side plates 113 and 114 are assembled.

Finally, as shown in FIG. 21 (f), a core 106 made of a long and tapered rod-shaped body is erected manually between the left and right end plates 103 and 104 while aligning the cores, and Complete the assembly.

After that, concrete is filled in the formwork and a forming operation is performed.

[0013]

However, the concrete product molding apparatus and molding method described above still have the following problems to be solved.

Since a slinging work is required to stand up and fall down the U-shaped inner side plate 112, which is a heavy object, pulling out and assembling work is extremely dangerous.

The U-shaped inner side plate 112 can be peeled from the concrete product by reducing the diameter.
When the character-shaped inner side plate 112 is long, it is difficult to uniformly reduce the width and the like over the entire length, and peeling becomes insufficient,
It takes time to demold concrete product products.

It is an object of the present invention to provide a concrete product forming apparatus capable of solving the above-mentioned problems.

[0017]

SUMMARY OF THE INVENTION The present invention is an automatic formwork disassembling and assembling apparatus for disassembling and assembling inner side plates interposed between end plates arranged at intervals, wherein the inner side plates are a pair of divided inner side plates. It relates to an automatic mold disassembling and assembling device, characterized in that the side plate can be expanded and contracted in conjunction with the movement of the end plate, and can be moved in the same direction in conjunction with the end plate. is there.

The present invention also defines each split core as:
Another structural feature is that the diameter is gradually reduced from the base end toward the insertion end.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An automatic formwork disassembling and assembling apparatus according to the present invention will be specifically described below with reference to the embodiments shown in the accompanying drawings.

(Embodiment 1) FIGS. 1 to 3 show the entire construction of an automatic mold disassembling and assembling apparatus A according to this embodiment.

In FIG. 1, a rectangular box-shaped carriage 10 is movably mounted on a rail 11 having a plurality of rolling rollers 8. On the carriage 10, a flat-plate bottom formwork is mounted. 12 are placed.

Further, the rail 11 is provided with a pair of stoppers 6 and 7 at regular intervals in the longitudinal direction, and the carriage 10 transferred to the demolding position is securely fixed and held by the stoppers 6 and 7. You can

In this embodiment, each stopper 6,7 is
Are the upright pawls 6b and 7b that rotate around the pivots 6a and 7a, respectively.
And the operating cylinders 6c and 7c that rotate the standing claws 6b and 7b,
Long stopper plate 6 attached to the tip of the upright packing 6b, 7b
It consists of d and 7d.

On the bottom mold 12, a concrete product C, which has been molded and has been demolded, is placed.

As is clear from FIGS. 1 and 2, the concrete product C has a rectangular plate-like surface forming portion 1 and a pair of retaining portions 2 and 2 integrally formed on the rear portion of the surface forming portion 1. Each of the retaining portions 2 and 2 is provided with a plurality of through holes 3 and 3 spaced in the front-rear direction.

Each through-hole 3 has the smallest diameter in the central portion, and gradually increases in diameter from the central portion toward both end openings to form left and right tapered holes 3a, 3b.

Further, split cores 13a, 13b, which will be described later, end plates 14, 14 and split side plates 15, 15 constituting an inner U-shaped side plate are integrally formed on the left and right sides of the truck 10 from the concrete product C. A core pull-out assembling apparatus D that can be pulled out is provided.

The core withdrawing and assembling apparatus D has actuating actuators 18 and 19 formed of hydraulic cylinders and the like inside the body casings 16 and 17, respectively.
The left and right end plates 14 can be detachably connected to the tips of the rods 18 and 19 via the chuck mechanisms 20 and 21, respectively.

The split cores 13a, 13b have substantially the same tapered shape as the left and right tapered holes 3a, 3b forming the through holes 3 described above.

In the split cores 13a and 13b, the end faces of the tips can be accurately brought into contact with each other during the later-described mold assembling work. Therefore, the engaging projection 4 and the engaging recess are formed at the center of the end faces. 5 and 5, respectively.

Further, as is apparent from FIG. 1, the left and right end plates 14 and 14 are respectively provided with L-shaped frames 40 and 4 at their lower portions.
The L-shaped frames 40 and 41 are provided with a frame guide support mounted on the upper surfaces of the lower frames 42 and 43 of the core pulling and assembling apparatus D when the core pulling and assembling apparatus D moves forward and backward. It is configured to rest on rollers 44,45.

Therefore, the split cores 13a, 13b mounted on the left and right end plates 14, 14 can be moved forward and backward while keeping the axis of the split cores 13a, 13b horizontal, and the cores can be accurately attached and detached.

Further, a divided side plate constituting the inner U-shaped side plate
Although not shown, 15 and 15 are narrowed in the width direction by the side plate expansion / contraction mechanism attached to the inner surfaces of the end plates 14 and 14, and this operation allows the inner U-shaped side plate to be peeled from the surface of the concrete product C.

Further, the divided side plates 15 and 15 can move in the same direction by interlocking with the forward and backward movement of the end plates 14 and 14 through the side plate expansion / contraction mechanism.

Further, as shown in FIG. 2, a side plate raising / lowering device E having the following structure is provided at the front and rear of the carriage 10.

That is, the front and rear side plates 16, 1 are attached to the front and rear parts of the carriage 10.
7 is disposed with its lower end pivotally connected by pivots 18a, 19a.

The base ends of the tilt guide plates 20, 21 are fixed to the pivots 18a, 19a, and the protruding shaft engaging portions 23, 24 are provided at the tips of the tilt guide plates 20, 21. The protruding shaft engaging portions 23, 24 are
The protruding shafts 25, 26 provided in the middle of the front and rear side plates 16, 17 are detachably connectable.

The pivots 18a and 19a have pivot levers 27 and 2 attached to them.
The base end of 8 is fixed, and vertical operation cylinders 29 and 30 whose base ends are pivotally supported on the floor F are attached to the tips of the rotary levers 27 and 28.
The tip of the rod is pivotally connected.

Further, FIG. 3 shows a sandwiching machine K which conveys the concrete product C after demolding to a transportation yard or the like by using an overhead crane J.

In this embodiment, the sandwiching machine 32 has a pair of narrow pressure plates 31 and 32 which come into contact with both ends of the surface forming portion 1 of the concrete product C in a narrow pressure state, and the narrow pressure plates 31 and 32 expand and contract with each other. It is composed of a telescopic mechanism 33 that is freely connected and a hook portion 34 provided on the upper part of the telescopic mechanism 33.

Next, the operation of the automatic formwork disassembling and assembling apparatus A having the above-mentioned structure will be described with reference to FIGS.

When the curing / hardening process of the concrete product C is completed, the carriage 10 is moved to a demolding position as shown in FIG. 2, and after confirming the movement, a pair of stoppers 6,
7 is driven to securely hold the carriage 10.

Next, by using an actuator (not shown) forming a part of the side plate raising / lowering device E, the protruding shaft engaging portions 23, 24 provided at the tips of the raising / lowering guide plates 20, 21 are attached to the front and rear side plates 16, 21. It engages with the protruding shafts 25 and 26 provided in the middle of 17.

The vertical operation cylinders 29 and 30 are operated to rotate the rotation levers 27 and 28. By this rotation, the pivots 18 and 19 that are integral with the pivot levers 27 and 28 pivot, and in conjunction with this pivoting, the tilt guide plates 20 and 21 that are integral with the pivots 18a and 19a and the tilt guides. The front and rear side plates 16 and 17 connected to the guide plates 20 and 21 are tilted in the front and rear direction around the pivots 18a and 19a, so that the front and rear side plates 16 and 17 can be separated from the concrete product C.

Next, the actuating actuators 18, 19 of the core withdrawing and assembling apparatus D are driven to move forward, and the rod tips are engaged with the left and right end plates 14, 14 via the chuck mechanisms 20, 21.
After confirming the engagement, the actuating actuators 18 and 19 are driven again to move back. By this retreat, the left and right end plates 14, 14 and the split cores 13a, 13b integrally attached to them, and the end plates 14
And the divided side plates 15, 15 forming the inner U-shaped side plate can be integrally and bilaterally pulled out from the concrete product C.

At this time, the divided side plates 15 and 15 are pulled out together with the end plates 14 and 14 after the width is contracted by the side plate expansion / contraction mechanism.

Both ends of the surface forming portion 1 of the concrete product C thus demolded are clamped by the pressure plates 31 and 32 of the carrier 32, and thereafter, the overhead traveling crane 31 is lifted up to transfer yard or the like. Can be transported to.

As explained above, the inner U-shaped side plate is
Since it is composed of split side plates 15 and 15 that can be retracted and retracted in the width direction in conjunction with the forward and backward movement of the end plates 14 and 14, it is extremely easy and safe to pull out and assemble the U-shaped inner side plate, which is a heavy item. It can be carried out.

Further, since the U-shaped inner side plate can be pulled out and assembled for each of the short divided side plates 15, 15, the peeling and pulling-out work from the concrete product C can be easily performed from this aspect as well. Can be done.

Further, in this embodiment, the core is formed of the split cores 13a and 13b which can be separated from the left and right,
The split cores 13a and 13b are tapered with the diameter gradually increasing from the center to the openings at both ends, so both core extraction and mounting work can be performed easily and quickly, and no auxiliary workers are required. You can

Further, since the end plate 14, the U-shaped inner side plate and the outer side plates 16 and 17 can be automatically demolded from the concrete product C by using the core pulling-out and assembling device D and the side plate erecting device E, It is not necessary to use an overhead traveling crane or the like, and the demolding work can be made extremely safe.

4 to 6 show the overall structure of a concrete product C molded by the automatic mold disassembling and assembling apparatus A according to this embodiment.

As shown in the figure, in the concrete product C, each through hole 3 provided in each retaining portion 2 has the smallest diameter in the central portion, and the diameter gradually tapers from the central portion toward both end openings. It is made large and consists of left and right tapered holes 3a and 3b.

Therefore, even if the concrete product C is turned upside down, the through holes 3 have the same shape. Therefore, as shown in FIG. 6, when the retaining wall G is constructed, the reinforcing bars 40 are placed in the through holes 3. When the concrete products C are inserted, they can be stacked without worrying about the vertical relationship of the concrete products C, and the retaining wall construction work can be easily performed.

Furthermore, since the openings at both ends of the through hole 3 have the largest diameters, it becomes easy to insert the reinforcing bar 40 into the through hole 3 also from the surface, and the retaining wall construction work can be performed more easily. .

(Embodiment 2) This embodiment is the same as Embodiment 1 described above.
The respective parts of the automatic formwork disassembling and assembling apparatus A according to are further specifically configured.

Hereinafter, the automatic formwork disassembling and assembling apparatus A will be described in detail with reference to the accompanying drawings FIGS.

In this embodiment, as shown in FIG. 12, the concrete product C to be molded has three circular through holes 3 and one rectangular through hole 3 in each retaining portion 2. It is shown as provided.

The same components as those in the first embodiment described above are designated by the same reference numerals.

First, as shown in FIGS. 10 and 11, the left and right rails 11 are provided with a plurality of guide rollers 9 on the upper surface thereof at the demolding position, and each guide roller 9 is a side surface of the carriage 10. It is possible to accurately guide the carriage 10 to the demolding position by abutting with and to reliably prevent the carriage 10 from moving in the left-right direction.

Next, the movement guide mechanism H for moving the end plates 14 and 14 in the left-right direction will be described with reference to FIGS.

As is apparent from FIG. 12, a pair of guide rails 46 and 47 are provided on the carriage 10 at intervals in the front-rear direction, and the upper flanges of the guide rails 46 and 47 are sandwiched from above and below. In this state, guide rollers 48, 49, 50, 51 are provided, and the guide rollers 48, 50 are rotatably attached to the L-shaped frame 40, while the guide rollers 49, 51 are L-shaped frame. It is rotatably attached to 41.

Next, the chuck mechanisms 20 and 21 for detachably connecting the actuating actuators 18 and 19 constituting the essential parts of the core pulling and assembling apparatus D to the left and right end plates 14 and 14 will be described.

Since the chuck mechanisms 20 and 21 have the same structure, the chuck mechanism 20 will be described.

As is clear from FIGS. 7 and 13, the end plate 14
A pair of engaging pieces 55, 56 having a T-shaped cross section in a plan view are provided on the outer surface thereof so as to be spaced at parallel intervals.

On the other hand, as shown in FIGS. 7, 13 and 14,
A central portion of a frame 57 having a gate shape in plan view is pivotally connected to the rod tip of the actuating actuator 18.

Further, the frame 57 is fixedly connected to the tip of a chuck mechanism supporting frame 97 having a flat box shape having sufficient rigidity, and the supporting frame 97 is provided in the main body casing 16 of the core pull-out assembling apparatus D. It is configured to be movable in the width direction along the guide frame 98.

Further, the left and right side walls 57a, 57b of the frame 57 are also provided.
A pair of moving plates 58, 59 are arranged between them, and an actuating actuator 60 is interposed between the moving plates 58, 59.

Further, one end of the advancing / retreating rods 61, 61, 62, 62 is provided above and below the moving plates 58, 59 so that the advancing / retreating rods 61, 6
The other ends of the 1,62,62 penetrate the upper and lower parts of the left and right side walls 57a, 57b of the frame 57 and project to the left and right sides, and the projecting ends are
They are connected by engaging plates 63 and 64.

With this configuration, the actuating actuator
When 60 is operated, the engagement plates 63 and 64 expand to the left and right,
It engages with the engagement pieces 55 and 56 provided on the end plate 14.

Thereafter, when the actuating actuator 18 is retracted, the engagement plates 63 and 64 and the engagement pieces 55 and 56 are engaged with each other,
The end plate 14 and the split side plates 15 and 15 which are integrated with the end plate 14 and the split core 13a can be integrally pulled out to remove from the concrete product C. Next, a mechanism for expanding and contracting the divided side plates 15, 15 in the width direction will be specifically described with reference to FIGS. 15 to 17.

As shown in FIGS. 15 and 16, one end of a downwardly opening channel-shaped frame 70 is integrally connected to the inner surface of the end plate 14.

At the front and rear positions of the frame 70, bolt mounting plates 71 are attached in the width direction, and sliding bolts 72, 72 are provided at both ends of the bolt mounting plate 71 at intervals in the front and rear direction. It is fixedly connected.

On the other hand, the split core 13a and the above-mentioned frame
Both ends of a pivot 75 laid between brackets 73 and 74 are pivotally connected to the inner surfaces of the left and right side walls 15a and 15b of each divided side plate 15 that surrounds 70. A proximal end side edge of a long guide plate 76 is attached to the pivot 75, and a front end side edge of the guide plate 76 is provided with long holes 77 and 78 in a state of being aligned in the front-rear direction.

The long holes 77 and 78 have straight portions 77a and 78, respectively.
a and outer bent portions 77b and 78b.

Further, the leading end side edge of the guide plate 76 is overlapped with both end edges of the bolt mounting plate 71, and the sliding bolts 72, 72 mounted on the bolt mounting plate 71 respectively have the above-mentioned long holes. It is inserted through 77 and 78 and protrudes upward.

Further, a retaining nut 80 is screwed onto the protruding end of the sliding bolts 72, 72 via a washer 79.

With this structure, the core pull-out assembly device D
When the end plate 14 is retracted together with the split core 13a and the demolding resistance between each split side plate 15 and the concrete product C is small, each split side plate 15 is also pulled out together with the end plate 14. Will be done.

However, when the mold release resistance between each divided side plate 15 and the concrete product C is large, first, the end plate 14 is used.
Only the frame 70 that is integral with is pulled out. On this occasion,
Since the frame 70 and the bolt mounting plate 71 are integrally connected, the sliding bolts 72, 72 mounted on the bolt mounting plate 71 move while sliding in the long holes 77, 78 provided in the guide plate 76. It will be different. Then, the sliding bolts 72,72 are attached to the long holes 77,78.
When it reaches the outer bent portions 77b, 77b of the, the moving direction of the sliding bolts 72, 72 will keep the axial direction as it is,
Inevitably, the left and right side walls 15a, 15b of each divided side plate 15 will be separated from the inner surface of the concrete product C, and the divided side plates will be separated.
The demolding resistance between 15 and the concrete product C will be significantly reduced. Therefore, when the end plate 14 is subsequently retracted, each divided side plate 15 can be surely pulled out from the concrete product C.

Further, in FIGS. 15 and 16, reference numeral 81 denotes a side plate expansion / contraction preventing mechanism, which is used when filling the molding material.
It is possible to prevent the upper portion of each divided side plate 15 from expanding and contracting in the width direction.

In this embodiment, the side plate expansion preventing mechanism 81
Is a bracket 81b that is attached to the upper portion of the inner surface of the left and right side walls 15a and 15b of each divided side plate 15 and has a pin engaging hole 81a, and a pin attachment plate 81c that is attached to the upper portion of the frame 70 in a transverse state.
The pin mounting plate 81c comprises engaging pins 81d provided at both ends.

With such a configuration, during the molding operation, the drawing
As shown in FIGS. 15 and 16, the engagement pin 81d is inserted into the pin engagement hole 81
By engaging with c, it is possible to reliably prevent the split side plates 15 from expanding in the width direction. On the other hand, during demolding work, the engaging pin
81d is disengaged from the pin engagement hole 81c, so that the split side plates 15 can be prevented from expanding and contracting in the width direction.

Next, the side plate tilting device E is shown in FIGS.
And FIG. 19 will be described.

The vertical working cylinder 19 is, as shown,
Axis 83 on cylinder mounting frame 82 with tip trunnion method
It is swingably attached via.

The protruding shaft engaging portion 23 provided at the tip of the tilt guide plate 20 has a sleeve 84 attached to the tip of the tilt guide plate 20.
And a protruding shaft engagement cylinder that slidably moves in the sleeve 84.
85, an actuating actuator 86 in which the rod tip at the rear end of the protruding shaft engaging cylinder 85 is connected, and a bracket 87 for attaching the actuating actuator 86 to the tip of the tilt guide plate 20.

With this structure, the actuating actuator is
By operating 86, the protruding shaft engaging cylinder 85 can be advanced and fitted toward the protruding shaft 25 provided on the side surface of the front side plate 16, and then the vertical operating cylinder 19 is operated to move forward. The side plate 16 can be easily and surely tilted.

Further, FIG. 20 shows the detailed construction of the sandwiching machine 32. Each of the narrow plates 31, 32 has a rubber liner 90 adhered to the inner surface thereof so as to increase the friction resistance.

As described above, also in this embodiment, the core is formed of the split cores 13a and 13b which can be separated from the left and right, and moreover, the split cores 13a and 13b are gradually moved from the central portion toward both end openings. Since the taper shape has a large diameter, both the pulling out and mounting work of the core can be performed easily and quickly, and an auxiliary worker can be eliminated.

Also, the end plate 14, the inner side plate 15 and the outer side plate 1
Since 6,17 can be automatically demolded from the concrete product C by using the core pulling and assembling device D and the side plate raising and lowering device E, it is not necessary to use an overhead traveling crane or the like. Mold work can be made extremely safe.

Further, in the case of the present embodiment, even if the demolding resistance between each divided side plate 15 and the concrete product C is large, the sliding bolts 72, 72 and the long hole having the bent shape are formed.
In cooperation with 77 and 78, the left and right side walls 15a, 15a,
15b is peeled off from the inner surface of the concrete product C, and the demolding resistance between the U-shaped inner side plate 15 and the concrete product C is remarkably reduced. Can be reliably pulled out, and the pulling-out work can be performed smoothly.

[0091]

According to the present invention, there is provided an automatic formwork disassembling and assembling apparatus for disassembling and assembling inner side plates interposed between end plates arranged at intervals, wherein the inner side plates are formed of a pair of divided inner side plates,
The side plate can be expanded and contracted in conjunction with the movement of the end plate, and can be moved in the same direction in conjunction with the end plate.

Therefore, the work of pulling out and assembling the U-shaped inner side plate, which is a heavy object, can be performed extremely easily and safely.

[Brief description of drawings]

FIG. 1 is an overall front view of an automatic formwork disassembling and assembling apparatus according to a first embodiment of the present invention.

FIG. 2 is a side view of the automatic formwork disassembling and assembling apparatus.

FIG. 3 is an explanatory view of a usage state of the sandwiching machine.

FIG. 4 is a perspective view of a concrete product.

5 is a cross-sectional view taken along the line I-I of FIG.

FIG. 6 is a perspective view of a retaining wall constructed using a concrete product.

FIG. 7 is a perspective view of an entire main part of an automatic mold disassembling and assembling apparatus according to a second embodiment.

FIG. 8 is a front view of the automatic formwork disassembling and assembling apparatus.

FIG. 9 is a plan view of the automatic formwork disassembling and assembling apparatus.

FIG. 10 is a plan view of a rail structure of the automatic formwork disassembling and assembling apparatus.

FIG. 11 is a side view of a rail structure of the automatic formwork disassembling and assembling apparatus.

FIG. 12 is a side view of a main part of the automatic formwork disassembling and assembling apparatus.

FIG. 13 is a plan view of a tip end portion of the core pulling and assembling apparatus.

FIG. 14 is a front view of the same.

FIG. 15 is a plan view showing the relationship between the end plate and the U-shaped inner side plate.

16 is a cross-sectional view taken along the line II-II of FIG.

FIG. 17 is a side view showing a mounting state of a sliding bolt.

FIG. 18 is a front view of the side plate tilting device.

FIG. 19 is a side view of the same.

FIG. 20 is a perspective view showing a usage state of the sandwiching machine.

FIG. 21 is an explanatory view of a conventional concrete product forming process.

[Explanation of symbols]

 A Automatic formwork disassembling and assembling device C Concrete product D Core pull-out and assembling device E Side plate raising and lowering device 14 End plate 15 Dividing side plate

Claims (1)

[Claims] 1. An automatic formwork disassembling and assembling apparatus for disassembling and assembling inner side plates interposed between end plates arranged at intervals, wherein the inner side plates are formed of a pair of divided inner side plates, and the divided side plates are The automatic form disassembling and assembling apparatus is characterized in that it can be expanded and contracted in conjunction with the movement of the end plate and can be moved in the same direction in conjunction with the end plate.