JPH0113402B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an instant demolding type concrete forming apparatus, which has a vibration table that vibrates the formwork from below, and the table has small wheels on both end faces and is moved outwardly along simple rails. The main feature is that it can be taken out.

Conventional downward demolding type instant demolding equipment fills a bottomless form with hardened concrete, applies vibration to the side walls of the form, and, if necessary, applies vibration to a press plate from above to perform pressure forming. are doing. However, vibration cannot be applied to the product receiving plate on which the molded product is placed and lowered. Therefore, it is unavoidable that the density of the deep part of the product is inferior to that of the top and side surfaces, which are directly subjected to vibrational shock.

The present applicant has improved this point and developed a device that also applies vibrations to the formwork from below, and has filed a patent application for the same in Japanese Patent Application No. 56-92963.

The vibrating table also serves as a demolding device and is equipped with large-scale vibration and buffer equipment, making repairs and design changes when changing products more difficult than with conventional, simple demolding equipment. Overhead cranes cannot be used.

The present invention allows this vibrating table to be easily taken out for maintenance.

1 to 3 show the entire embodiment of this invention, the main parts of which are first and second concrete supply devices 1 and 1', a press device 2, a support device 3 for formwork M, and a vibration table. It can be roughly divided into demolding devices 4 including 17. Structurally, there is a formwork support device 3 fixed at the mid-height of each of the right and left columns 5, 5, which form part of the fuselage, and a press device 2 that moves up and down using the upper parts of both columns 5, 5 as guide columns. The press beam 20 and the demolding beam 30, which also move up and down using the lower part as a guide column, are attached with their respective parts, and the left and right concrete supply devices 1 and 1' are of the conventional quantitative sliding hopper type.

The press beam 20 is driven up and down by left and right hydraulic cylinders 21, but these cylinders 21 are raised not from the base but from the left and right ends of the demolding beam 30. The demolding beam 30 is raised and lowered by a hydraulic cylinder 31 that stands on a base. However, beam 3
0 is a stopper 6 that comes out from the formwork support device 3 to the left and right
The adjustment screws 6a at both ends of the beam 30 are in contact with each other so that the upper limit is reached.

The press device 2 has vibration motors 7, 7 placed on the upper surface of the beam 20, rotates the oscillator 8, vibrates the press plate 9, and transmits the vibration to the concrete pressing plate 9a attached to the lower surface of the press plate 9. .

The support device 3 for the formwork M is a pair of vertical rectangular plates 10, 10, which are vertical members fixed perpendicularly to appropriate heights of the supports 5, 5.
0 and 10 are holding members 11 that maintain a gap wider than the width between both sides of the formwork M and the vibration table 17, and hold down the four corners of the formwork M via buffer portions on the top thereof.
A bracket 12 for supporting the left and right lower edges of the formwork M is attached to the middle part. Bars for the left and right rails 13 are attached substantially horizontally to the opposing inner lower portions of both vertical rectangular plates.

The bracket 12 is supported by the bracket 12 as shown in FIG. 3 only when the mold M is not supported by the product receiving plate 14 placed on the vibrating table 17, and when the product is to be demolded. The receiving plate 14 supports the concrete in the formwork M and at the same time supports the formwork itself.
When the three push plates 9a that fit the formwork M attached below are lowered, the formwork M is stopped on the bracket 12, the product A is placed on the receiving plate 14, and the product A is lowered as shown in the figure. The bracket 12 raises the vibration table 17, and during concrete supply, pressurization, and vibration, when the formwork M is supported by the receiving plate 14, the bracket 12 moves away from the lower surface of the formwork M, as shown in FIG.

When the vibration table 17 is raised by the demolding beam 30 and the formwork M is lifted up and lifted from above the bracket 12, the stopper 6 controls the rise of the demolding beam 30, but the presser material 11 attached to the rectangular plate 10 also Formwork M elastically
Hold down the top. At the same time, the press device 2 is raised to fully pull up the concrete pressing plate 9a, and from the side, the first concrete supply device 1 first feeds out a known movable hopper 1a to drop the lower layer concrete into the formwork M. During this time, the vibration table 17 applies vibration to the formwork M using a vibration mechanism to be described later to flatten the poured concrete.

When the movable hopper 1a of the first supply device 1 returns, the second concrete supply device 1' waiting on the opposite side brings out the movable hopper 1a' and pours the upper layer concrete into the formwork M. Then, when the hopper 1a' returns, the press device 2 is lowered and the charged concrete is strongly pressed by the press plate 9a to complete the forming. These processes are the same as before.

Now, the vibration table 17, which lowers the product A by placing it on the receiving plate 14, has a new function of applying vibration to the concrete inside the formwork M from below. It has the function of horizontal positioning.

As shown enlarged in FIGS. 4 and 5, the receiving plate 14 is mounted on a demolding beam 30 via a cushioning rubber 16, and the vibration table 17 is mounted via an air spring 18. Four motors 7 attached to the beam 30 rotate the oscillating body 8 and strongly vibrate the table 17. Reference numeral 24 in FIG. 3 is a lowering limit stopper for the table 17, which acts as a support when air is released from the air spring 18.

In Figure 4, the vibration table 17 is raised, and the pins 15 on the upper surface of the table are passed through the pin receiving holes of the formwork M.
It shows the state where it is floating. In this state, concrete pouring, vibration, and pressurization are completed. There is a shaft hole 19 for a wheel device on the side surface of the formwork M. The wheels are attached immediately before removal, but they may be attached all the time.

If the vibrating table 17 is lowered from the state shown in FIG. 4, the demolded product A can be taken out as shown in FIG. However, whether to take formwork M outside and repair it,
To replace it, in this case, the bracket 12 is removed. Then, when the vibration table 17 is lowered, the wheels 22 are placed on the rails 13 as shown in FIG. 5, and the formwork M can be taken out.

In this embodiment, the second concrete supply device 1' is movable and is connected to the main device as needed, so a supplementary rail 13a is attached to it so that it can be connected and separated from the rail 13 on the main device side. There is.

Now, the vibration table 17 which is the main character of this invention
There are also wheel attachment parts 19a on both sides of the table 17, and small wheels 22a can be attached to both sides of the table 17.
The wheel attachment part 19 of the formwork M was an axle receiving hole drilled on the side, but since there was no room for making a hole on the side of the table 17, a block with an axle receiving hole was fixed to the top surface of the side of the table. This is the mounting portion 19a. The wheels 22a have the same shape as the formwork wheels 22,
The mounting method is also the same.

When installing, adjust the height of the demolding beam 30 to the hydraulic cylinder 3.
1 and parked at the position shown in FIG. 6, the wheels 22a can be fitted into the mounting portions 19a through the windows 10a of the vertical rectangular plates 10 on both sides. When lowered from that position, the wheels 22a rest on the rails 13.
In other words, the rail 13 can be used for both the formwork M and the table 17. However, since the rails 13 are shared, the wheels 22a of the table 17 cannot be left on in this embodiment. When the table 17 rises above the height of the rail 13,
This is because the wheels 22a touch the lower surface of the rail 13.

The V-belt pulley 25 at the end of the oscillator 8 on the lower surface of the table 17 in FIGS. 6 and 7 is driven by the motor 7 in FIG. 3 and does not represent a belt. The adjustment bolt 27 extending downward from the bracket 26 supporting the oscillator 8 is connected to a vibration isolating rubber 28 attached to the demolding beam 30 side.
The table 17 is supported by a beam 30 as shown in FIGS. 3 and 6.
If you lower it, it will separate as shown in Figure 7. And the seventh
The table positioning pin 29 on the beam 30, shown only in the figure, comes out of the table 17 and is exposed. The table 17 can now be taken out along the rail 13.

As explained above using one embodiment, this invention supports a product receiving plate for demolding by a vibrating table that can be raised and lowered, and small wheels are attached to both sides of the table so that it can be taken out to the outside along a rail. Its main feature is that it can be varied and applied in a variety of ways depending on the design conditions without changing its gist. The elevating mechanism of the vibrating table is not necessarily shared with the demolding device. For example, the lower surface of the mold for upper demolding and reverse demolding may be vibrated with a vibration table.

This invention opened the way for the first time to apply vibration to instant demolding formwork from below, and significantly increased the deep density of instant demolding concrete products. A complicated vibrating table was installed below the formwork so that it could be raised and lowered, which made maintenance difficult. By adding simple parts such as installing simple rails with horizontal bars attached to the opposite sides, we have realized a maintenance method that allows the table to be taken outside for easy maintenance.

By applying the present invention, the maintenance time and labor for the vibrating table of the above embodiment have been reduced to a fraction of what they were before application.

[Brief explanation of drawings]

Figure 1 is an elevational view of one embodiment of this invention, Figures 2 and 3
The figure is a plan view and side view, Figure 4 is an explanatory diagram of the relationship between the formwork and vibration table after concrete is poured and pressurized, and Figure 5 is an explanatory diagram of the relationship when the formwork is taken out of the machine. , Fig. 6 is an explanatory diagram of a state in which small wheels are attached to both ends of the vibrating table, and Fig. 7 is an explanatory diagram of a state in which the table is placed on a rail and the elevating mechanism is released downward.
FIG. 8 is an explanatory side view of the vibration table. 5 is a column (body), 8 is an oscillating body, 10 is a vertical rectangular plate (vertical member), 13 is a rail, 17 is a vibration table, 18 is an air spring (buffer), 22a is a small wheel, 30 is for demolding Beam (vibrating table support mechanism)
It is.

Claims (1)

[Claims] 1. In an instant demolding type concrete forming apparatus in which a formwork is horizontally supported in the air by a machine body, a vibration table with an oscillator is placed horizontally below the formwork, and this vibration table is supported on the machine body via a buffer body. a mechanism, small wheels attached to both sides of the vibrating table and protruding outward from each side, and opposing wheels supported perpendicularly to the machine body with a gap wider than the width between the both sides of the vibrating table. and left and right rail rods mounted substantially horizontally on opposing inner sides of each of the vertical members so as to carry the small wheels and guide the vibration table outward. Immediate demolding concrete forming equipment.