JP2529356B2 - Cylindrical concrete product molding equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a molding apparatus for a tubular concrete product including an outer frame and an inner frame.

[Problems to be Solved by Conventional Techniques and Inventions] Conventionally, an inner frame of this type has an upper frame portion, left and right side frame portions, and a lower frame portion, and the left and right end portions of the upper frame portion and the left and right side frame portions. The upper and lower end portions are connected to each other so that the left and right frame portions can tilt in the direction in which they face each other and move toward and away from each other. The inner frame can be opened and closed with respect to the outer frame by vertically moving the lower frame part and tilting the left and right side frame parts.

However, when taking out the tubular concrete product after molding, after opening the inner frame, first pull out the opening and closing device from the inner frame,
Furthermore, it was necessary to remove the inner frame from the outer frame. Further, when the tubular concrete product is taken out and then molded next, it is necessary to first insert the inner frame into the outer frame and further insert the inner frame opening / closing device into the inner frame to close the inner frame. Therefore, the insertion / removal work was very troublesome.

An object of the present invention is to improve the insertion and removal of the inner frame and the inner frame opening / closing mechanism so that they can be simultaneously inserted into and removed from the outer frame.

Configuration of the Invention [Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a tubular concrete product molding formwork including an outer frame and an inner frame, and the inner frame in the inner frame. In the tubular concrete product forming apparatus, which is provided with an inner frame opening / closing mechanism for opening and closing the inner frame with respect to the outer frame, and an inner frame inserting / removing mechanism for inserting / removing the inner frame with respect to the outer frame, Is formed separately from the mold, and the inner frame insertion / removal mechanism cooperates with the inner frame opening / closing mechanism to open / close the inner frame with respect to the outer frame, and in a state where the inner frame is placed. It is characterized in that a mounting portion is provided for moving the inner frame with respect to the outer frame and inserting and removing the inner frame.

[Operation] In the present invention, in the state before placing concrete,
Insert the inner frame placed on the placement part of the inner frame insertion / removal mechanism into the outer frame in the open state by the cooperation of the inner frame opening / closing mechanism and the inner frame opening / closing mechanism, and after positioning, Release the cooperation with the inner frame insertion / removal mechanism. Then, the inner frame is closed with respect to the outer frame. Then, concrete is poured into the molding space between the inner and outer frames.

When the concrete product is taken out after the pouring, the inner frame insertion / removal mechanism and the inner frame opening / closing mechanism are caused to cooperate again to open the inner frame with respect to the outer frame. Next, when the mounting portion of the inner frame inserting / removing mechanism is moved in a direction away from the outer frame, the inner frame is pulled out from the outer frame while being placed on the mounting portion. Then, the tubular concrete product is released from the outer frame.

Next, when placing a new cylindrical concrete product, move the placement part of the inner frame insertion / removal mechanism toward the outer frame, and open / close the inner frame and inner frame placed on the placement part. The mechanism is inserted into the outer frame. Then, after positioning, the inner frame opening / closing mechanism and the inner frame inserting / removing mechanism are released from cooperation. Then, the inner frame is closed with respect to the outer frame.

After that, concrete is placed in the same manner as described above.

[First Embodiment] A first embodiment of the present invention will be described below with reference to FIGS.

As shown in FIGS. 1 to 3, the mold 1 includes an outer frame 2 and an inner frame 3, the outer frame 2 is fixed on a mounting table 4, and the inner frame 3 is an outer frame during molding. It is inserted in 2 and is fixed to the outer frame 2 by a clamp 5. A vibrator 6 is attached to the mounting table 4.

The outer frame 2 is composed of a lower frame part 7 and left and right side frame parts 8 rising upward from both left and right end parts of the lower frame part 7. A pair of upper and lower side corner parts of the left and right side frame parts 8 extend opposite to each other. Wife plate 9
Are fixed by a clamp 10 in a state of being in contact with each other. At the time of demolding, with the clamp 10 and the clamp 5 between the inner and outer frames 3 and 2 removed, the left and right side frame parts 8 and the end plate 9 of the upper end part face each other toward the lower frame part 7 and come close to each other. It can be tilted to the left and right.

As shown in FIG. 4, the inner frame 3 is composed of an upper frame part 11, left and right side frame parts 12, and a lower frame part 13. The left and right end parts of the upper frame part 11 and the upper end parts of the left and right side frame parts 12 are The left and right side frame parts 12 are connected to each other and can be tilted in the left and right directions in which they face each other so as to approach and separate from each other. It is possible to move up and down.

Next, the mechanism F for opening and closing the inner frame 3 with respect to the outer frame 2 will be described in detail.

In the inner frame 3, the upper end of the elevating cylinder 15 in the upright state is movably supported in the supporting cylinder 14 fixed to the center of the upper frame 11 in the left-right direction. A lift rod (16) is fixed in a horizontal state, and a horizontal rod (17) is fixed in a horizontal state at the lower part of the lifting cylinder (15). One end of a link 18 is supported on both left and right ends of the horizontal rod 17 by a shaft 18a so as to be rotatable in the left-right direction, and the other end of the link 18 is fixed to the lower ends of the left and right side frame parts 12. The bracket 19 is rotatably supported by the shaft 18b, and both the shafts 1
Between 8a and 18b, the link 18 has an oblique shape that approaches the left and right side frame portions 12 as it goes downward. A lift rod 20 is fixed to the center of the lower frame 13 in the left-right direction.
An elevating rod 21 erected upright is fitted in the elevating barrel 15 so as to be vertically movable.

In addition, the lifting cylinder 15, the lift rod 16, the side rod 17, and the link 18
And a movable portion for tilting the left and right frame portions 12 in the left-right direction are formed, and the lift rod 20 and the lifting rod are provided.
A movable portion for vertically moving the lower frame portion 13 is constituted by 21 and.

Next, the mechanism G for inserting and removing the inner frame 3 and the inner frame opening / closing mechanism F with respect to the outer frame 2 will be described in detail.

As shown in FIG. 5, on the front side of the mounting table 4, a chassis 22 is inserted so as to be horizontally movable.
A lifter 23 is detachably fixed to the front end of 22 via a connecting portion 24. As shown in FIG. 9, this lifter 23
Both left and right masts 25 are erected on the base plate, and a pair of left and right hydraulic cylinders 27 and a hydraulic cylinder 28 located between them are installed side by side on a base plate 26 that is installed between the lower parts of the left and right masts 25. ing. Piston rods 27a, 2 of each hydraulic cylinder 27, 28
Sprocket 29, 30 is attached to 8a and piston rod 2
The sprocket 29, 30 moves up and down as the 7a, 28a move up and down. Elevating rods 31 and 32 are provided between the vertical center portions of the left and right masts 25 and between the lower portions of the left and right masts 25, respectively.
Is vertically erected, and a pair of left and right forks 33 are horizontally extended above the chassis 22 on the upper lifting rod 31, and a fork is provided at the center of the lower lifting rod 32 in the left-right direction.
34 are also extended. The fork 33, 34 constitutes a mounting portion. The left and right sprockets 29 and the central sprocket 30 are respectively wound around elevating chains 35 and 36, and one ends of the elevating chains 35 and 36 are fixed to the base plate 26 as shown in FIG. Left and right lifting chains 35
The other end is fixed to the upper lifting rod 31, and the central lifting chain
The other end of 36 is fixed to the lower lifting rod 32. And
When each piston rod 27a, 28a moves up and down, each sprocket 29, 30 also moves up and down, and each lifting rod 31, 32 moves each lifting chain 35, 3
It moves up and down together with each fork 33, 34 via 6. The upper forks 33 are movable parts 15 to 15 in the inner frame opening / closing mechanism F.
The lift rod 16 is inserted below the lift rod 16 so that the lift rod 16 can be lifted. The lower fork 34 is inserted below the lift rod 20 of the movable parts 20, 21 of the inner frame opening / closing mechanism F so that the lift rod 20 can be lifted.

The hydraulic cylinder 27, the sprocket 29 and the lifting rod
The movable part 15 ~
Lifting means for lifting the lift rods 16 of 18 are configured, and the lift rods 20 of the movable parts 20 and 21 are held by the hydraulic cylinder 28, the sprocket 30, the lifting rod 32, the forks 34, and the lifting chain 36. Lift means for raising is configured.

Now, as shown in FIG. 1 to FIG. 3, in the state before placing concrete, each fork 33, 34 is in the downward movement position, and the inner frame 3 inside the outer frame 2 is inserted into the inner frame 3. It is inserted below both lift rods 16 and 20 of the opening / closing mechanism F. The lower frame portion 13 and the left and right side frame portions 12 of the inner frame 3 are closed to the outer frame 2 by their own weight to form a molding space S between the outer frame 2 and the inner frame 3, and the clamp 5 moves the inner frame 3 to the outside. It is fixed to the frame 2.

Then, concrete is poured into the molding space S between the inner and outer frames 3 and 2.

After placing, the lower fork 34 first moves upward to lift the lift rod 20.
When the lift bar 16 is lifted, the lower frame part 13 of the inner frame 3 is moved upward, and immediately after that, both upper forks 33 are moved up and the lift rod 16 is lifted, the left and right side frame parts 12 are mutually connected via the link 18. Tilt to approach. Therefore, the inner frame 3 opens with respect to the outer frame 2 as shown in FIG.

Next, as shown in FIG. 5, when the lifter 23 was moved in a direction away from the outer frame 2, the inner frame 3 and the inner frame opening / closing mechanism F were placed on the forks 33, 34 as shown in FIG. In the state, the outer frame 2 is pulled out at the same time. Then, the left and right frame portions 8 of the outer frame 2 are opened, and the tubular concrete product is lifted and released from the outer frame 2.

Next, as shown in FIGS. 7 and 8, the lifter 23 is moved toward the outer frame 2 to move the forks 33, 34.
The inner frame 3 and the inner frame opening / closing mechanism F placed thereon are simultaneously inserted into the outer frame 2.

Then, first, both forks 33 on the upper side move downward to lift the rod.
When 16 moves downward due to its own weight, the left and right side frame portions 12 of the inner frame 3 tilt in the direction in which they are separated from each other via the link 18, and immediately after that, the lower fork 34 moves downward and the lift rod 20 moves downward due to its own weight. When moved, the lower frame portion 13 of the inner frame 3 moves downward. Therefore, the inner frame 3 closes with respect to the outer frame 2 as shown in FIG.

After that, concrete is poured in the same manner as described above.

In this embodiment, the inner frame 3 is formed by the forks 33, 34.
When mounting and lifting, the lower frame part 13 of the inner frame 3 and the left and right side frame parts
Since 12 and 12 can be opened with respect to the outer frame 2, the mold opening work of the inner frame 3 can be performed very easily. Further, if each fork 33, 34 is moved downward, the left and right side frame portions 12 and the lower frame portion 13
Can be closed to the outer frame 2 by its own weight, and the mold closing work of the inner frame 3 can be performed very easily.

In particular, since the forks 33, 34 can be used to insert and remove the inner frame 3 and the inner frame opening / closing mechanism F at the same time with respect to the outer frame 2, the mold opening of the inner frame 3 and the outer frame can be performed. Since the inner frame 3 and the like can be inserted and removed with respect to 2, the molding work efficiency is improved.

Further, since the inner frame inserting / removing mechanism G and the mold 1 are provided as separate bodies, it is possible to release many concrete products if at least one inner frame inserting / removing mechanism G is provided. It is not necessary to provide the inner frame inserting / removing mechanism G on all the molds, as compared with the case where it is provided in, and the equipment investment can be reduced. It is also ideal for equipment lineup.

[Second Embodiment] In the first embodiment described above, a fork 33 that lifts the lift rod 16 to open the left and right frame portions 12 and a fork 34 that lifts the lift rod 20 to open the lower frame 13 are provided. However, in the second embodiment, the left and right side frame portions 12 can also be opened by using only the forks 34 for opening the lower frame portion 13.

That is, as shown in FIG. 11, a long hole 37 is formed in the support cylinder 14 fixed to the upper frame portion 11, and a lift rod is formed in the long hole 37.
16 are supported so that they can move up and down. A horizontal rod 17 is connected to the lift rod 16. The upper end of the lifting rod 21 is a support tube 14
The lift rod 16 can be lifted by the upward movement of the lifting rod 21.

Now, when the fork 34 lifts the lift rod 20, first, the lower frame portion 13 moves upward and opens to the outer frame 2, and immediately after that, the lift rod 20.
When 16 is lifted by the lifting rod 21, the left and right side frame portions 12 are tilted by the links 8 and open with respect to the outer frame 2. On the other hand, when the fork 34 moves downward, both lift rods 16 and 20 move downward, first the left and right side frame portions 12 close to the outer frame 2, and immediately thereafter the lower frame portion 13
Closes to the outer frame 2.

[Application Example] First, the molding line system shown in FIG. 12 will be described.

A curing room 40 is provided between the traversers 38 and 39. In this curing chamber 40, a large number of trolley-equipped frames 1 arranged in parallel so as to connect the traversers 38, 39 are arranged in parallel in a plurality of rows. Adjacent to this curing room 40, both traversers 38,3
Forming lines 41 between the ends of 9 are molds 1 in each row of the curing chamber 40.
It is installed in parallel with.

Three robots 42 are juxtaposed along the molding line 41 at substantially the center of the molding line 41, and the robot 42 has the same structure as the inner frame inserting / removing mechanism G. Above the robots 42, a ceiling crane 43 is provided orthogonal to the molding line 41. A vibrating table 44 is provided near one traverser 38 of the molding line 41, and a concrete throwing machine 45 is provided adjacent to the vibrating table 44.

By the way, the formwork 1 after the concrete is poured is sequentially carried to the curing room 40, and the concrete is dried there. After drying
The molds 1 are transferred as a set of three to the molding line 41 by one traverser 39, and stopped in front of the three robots 42. Therefore, the robot 42 demolds the product 46
Is lifted up by the overhead crane 43 and taken out to a position adjacent to the molding line 41. Thereafter, the robot 42 assembles the form 1 with the reinforcing bar 47 carried to the same position.

After the assembling, each mold 1 is moved on the molding line 41, separated from the three robots 42, and sequentially placed on the vibration table 44.
Then, concrete is poured into the formwork 1 by the concrete throwing machine 45. The form 1 is the other traverser 38
Is transported to the curing room 40.

At the same time that each mold 1 is separated from the three robots 42, the next mold 1 is carried from the curing chamber 40, and the mold removal and assembly are performed in the same manner.

Next, the molding line system shown in FIG. 13 will be described.

The robot 42 is provided in the curing room 40 adjacent to one traverser 39 for each form 1 in each row. Heaven crane 43
Are provided above the robot 42 in parallel with the formwork 1 in each row.

The mold 42 of the curing room 40 is demolded and assembled by the robot 42 for each row. The product 46 is taken out of the one traverser 39. Rebar 47 is also carried here. Each of the assembled molds 1 is molded by the traverser 39 into a molding line 41.
It is transferred to and the concrete is placed.

In addition, a plurality of vibrating tables 44 are provided in the molding line 41, and the mold 1 is placed there, and the mold 1 is demolded and assembled. At the same time, the movable concrete placing machine 45 is used to move the mold 1 to each mold 1. You can pour concrete.

EFFECTS OF THE INVENTION According to the present invention, the inner frame and the inner frame opening / closing mechanism can be placed on the mounting portion of the inner frame inserting / removing mechanism and can be inserted / removed with respect to the outer frame. be able to.

Also, since the inner frame insertion / removal mechanism and the formwork are provided separately, it is possible to release many concrete products with at least one inner frame insertion / removal mechanism, and they are provided as one unit. Compared with the case where all the molds are provided, it is not necessary to provide an inner frame insertion / removal mechanism for all the molds, and the equipment investment can be reduced. It is also ideal for equipment lineup.

[Brief description of drawings]

FIG. 1 is a side view showing a state before placing concrete in a tubular concrete product molding form according to the first embodiment,
2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is B of FIG.
A cross-sectional view taken along the line B, FIG. 4 shows the state in which the inner frame is opened with respect to the outer frame in the same formwork after concrete placement, and FIG. 5 shows the inside of the same formwork after concrete placement. FIG. 6 is a side view showing a state where the frame is pulled out from the outer frame, and FIG.
FIG. 7 is a side view showing a state in which the inner frame is inserted into the outer frame in the same form of the tubular concrete product taken out from the outer frame, and FIG. 8 is a D- line of FIG. D line sectional view,
FIG. 9 is a front view showing the lifter, and FIG. 10 is an E- of FIG.
A sectional view taken along the line E, FIG. 11 shows the second embodiment of the inner frame opening / closing device, which is equivalent to FIG. 3, and FIGS. 12 and 13 show molding using the tubular concrete product molding device according to this embodiment. It is a line system figure. 1 ... form frame, 2 ... outer frame, 3 ... inner frame, 11 ... upper frame part,
12 …… side frame part, 13 …… lower frame part, 15 …… elevating cylinder, 16 …… lift rod, 17 …… side rod, 18 …… link, 20 …… lift rod,
21 …… elevating rod, 23 …… lifter, 27,28 …… hydraulic cylinder, 29,30 …… sprocket, 31,32 …… elevating rod, 33,34
...... Fork (placement part), 35,36 …… Lifting chain, F
…… Inner frame opening / closing mechanism, G …… Inner frame insertion / removal mechanism.

Claims (1)

(57) [Claims] 1. A tubular concrete product forming mold (1) comprising an outer frame (2) and an inner frame (3), and the inner frame (3) within the inner frame (3). Cylindrical concrete provided with an inner frame opening / closing mechanism (F) that opens and closes with respect to 2) and an inner frame inserting and removing mechanism (G) for inserting and removing the inner frame (3) with respect to the outer frame (2). In the product molding apparatus, the inner frame insertion / removal mechanism (G) is formed separately from the mold (1), and the inner frame insertion / removal mechanism (G) includes the inner frame opening / closing mechanism (F). The inner frame (3) is opened and closed with respect to the outer frame (2) in cooperation with the outer frame (2), and the inner frame (3) is moved to insert the inner frame (3) into the outer frame (2). Placement for removing (3
A cylindrical concrete product forming device characterized in that it is provided with 3,34).