JPH0660530B2 - Automatic concrete compactor - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an automatic concrete compaction device, and more particularly to a device that can easily automate compaction over a wide working range such as a pillar or a wall.

<Prior art> When placing concrete on-site or in a PC (precast concrete) member manufacturing plant, conventionally, a vibrating machine such as a rod-shaped vibrating machine in which fresh concrete put into the form was inserted from the upper opening of the form It was made to vibrate by, and it was made to spread to every corner in the formwork, and was filled up densely.

However, in recent years, as the height of reinforced concrete structures has increased, the amount of reinforcing bars to be arranged has increased, or the height of one concrete placement has increased, and the PC member has increased in size. It is difficult or impossible to insert deeply.

Therefore, a so-called external vibration method has been adopted in which a vibrator is attached to the outer surface of the mold and the concrete in the mold is vibrated through the mold.

For example, as shown in FIG. 5, a concrete vibrator 3 and a concrete sensor 3 for detecting the position of the ready-mixed concrete C in the mold 1 are attached to a manipulator 4 mounted on a traveling carriage 5, and the concrete sensor 3 is removed. Manipulator 4 at the desired position while grasping the concrete filling state with the signal
There is a method of moving the carriage 5 to vibrate a desired position (see JP-A-60-164555, etc.).

<< Problems to be Solved by the Invention >> However, in the method of applying vibration from the outside as described above,
The vibration force applied to the green concrete C is weak.

Since the performance is limited in this way, only a small amount of vibration can be applied to small parts. When placing concrete on a high-rise building or a large PC member, the vibration part is divided into many sections. It was necessary to perform detailed vibration work for each section.

Further, in the conventional device shown in FIG. 5, the manipulator 4 is used.
In addition, the wiring inside the carriage 5 is extremely large and complicated, and it is impossible to simultaneously apply vibration to a plurality of places. If the work range is wide, the manipulator 4 and the carriage 5 also have a wide movement range, and automation is possible. There are problems such as difficulty.

The present invention has been made in view of the above points, and it is an object of the present invention to easily perform fine vibration work of each section, wiring is simple, and simultaneous vibration of a plurality of places is possible. An object of the present invention is to provide an automatic concrete compaction device which is possible and requires a small amount of movement even in a wide working range.

<Means for Solving the Problems> In order to achieve the above object, the present invention provides a movable main body with a cantilever-supporting arm that can be swung up and down, and a plurality of form vibrators. And a concrete sensor is attached to the front part of the arm, and the control section of the form vibrator is disposed on the main body.

<< Operation >> In the present invention, the main body freely moves to a desired position. Also,
By vertically moving an arm equipped with at least one form vibrator and a concrete sensor provided on the main body, the arm is freely moved to a desired vibration location.

Then, the concrete sensor detects the top end of the concrete that is being poured into the pillar portion or the wall portion, and the detection signal is sent to the control unit arranged in the main body to start the operation of the form vibrator.

This control unit also selects the vibration waveform of the form vibrator, adjusts the excitation force (amplitude) / excitation frequency, and stops the operation.

At this time, if at least one of the mold vibrators is equipped with a vibration sensor, the vibration force and the amount of vibration of all the mold vibrators are adjusted and the operation is stopped by the signal from this vibration sensor. If a vibration sensor is provided for each form vibrator, adjustment and operation stop of each form vibrator are performed, and more uniform concrete compaction is performed.

<< Embodiment >> The side view of FIG. 1 (A), the rear view of FIG. 1 (B), and the plan view of FIG. 1 (C) show an embodiment of the apparatus according to the present invention.

As shown in the figure, a pair of first guides 11 having a substantially U-shape in a plane extending in the vertical direction are provided at both front end portions of a box-shaped main body 10 that is movable via wheels arranged on the bottom surface. 11 is provided. Further, a rectangular second guide 12 is horizontally arranged between the first guides 11 so as to extend thereover.

Then, the first guide 11 is provided with first substantially L-shaped support portions 13, 13 projecting outwardly so as to be vertically movable. Similarly, the second support portion 14 is attached to the second guide 12 so as to be movable left and right.

Further, an elongated rectangular rod-shaped arm 15 is pivotally attached to the tip of the first support portion 13 so as to be rotatable.

The arm 15 extends horizontally from a position ((15a) moving / storing position) close to the side surface of the main body 10 by approximately 180 degrees.
It is possible to freely rotate within an angle range up to the rotated position ((15b) column work position). Incidentally, reference numeral 15c in the drawing denotes a wall working position.

Then, the tip of the arm 15 and the second support portion 14
Form vibrators 2, 2, 2 and electromagnetic wave type non-contact concrete sensors 3, 3, 3 are mounted on the front surface of the.

The mold vibrator 2 can be finely moved in the three-dimensional direction, and can contact (compact) the mold from the optimum direction. Further, springs 16 are installed on the form vibrators 2, 2, 2 so that the pressing force of the form vibrators 2, 2, 2 against columns, walls, etc. can be adjusted.

Further, the main body 10 has a built-in control unit 17 of a form vibrator including, for example, a static frequency converter, a voltage regulator, and the like, and a control panel 19 is attached to the upper rear surface of the main body 10. Power is supplied to the control unit 17 and the like from an external power source via a cable reel 20 arranged in the main body 10.
Alternatively, it is performed by a generator or a storage battery mounted in the main body 10.

FIG. 2 is a perspective view showing an operation example of the apparatus according to the present invention configured as described above, and in this example, the operation at the time of placing concrete on the pillar 100 is shown.

An elevation view of FIG. 2 is shown in FIG. 3 (A), and a plan view thereof is shown in FIG. 3 (B).

First, the main body 10 is moved to the vicinity of the pillar 100. Next, as shown in FIG. 3 (B), the arm 15 is rotated 180 ° in the horizontal direction to clamp the column 100 from both sides. Then, along the first guide 11, the first support portion 1
3 is moved up and down, and the second support portion 14 is moved left and right along the second guide 12 to set these first and second support portions 13 and 14 at the initial positions.

After that, fresh concrete C is poured into the pillar 100, and the control unit 17 is actuated by the detection signal from the non-contact concrete sensor 3 of the electromagnetic wave system, so that the form vibrator 2,
The power of 2, 2 is turned on.

The form vibrators 2, 2, 2 are the form 1 of the pillar 100.
It is pressed against by the spring 16 and gives vibration to the inner ready-mixed concrete C via the formwork 1. In this way, vibration can be applied to the pillar 100 from three directions, so that the compaction work can be performed more reliably and quickly.

Further, the form vibrators 2, 2, 2 can give vibrations of arbitrary waveforms (sine wave, shock wave, random wave, etc.) effective for compaction according to the condition of the poured fresh concrete C. Moreover, the exciting force (amplitude) and the exciting frequency can be arbitrarily adjusted by adjusting the voltage and frequency of the power source, for example.

The above-mentioned selection of the vibration waveform and the adjustment of the excitation force / excitation amount may be performed by a signal from a vibration sensor (not shown) mounted on the form vibrators 2, 2, 2.

Then, while applying the vibration as described above to the fresh concrete C through the form 1, the first and second support portions 13 and 14 are gradually moved along the first and second guides 11 and 12. ,
The concrete placing of the pillar 100 is completed.

Further, as shown in FIG. 3 (A), the above-mentioned vibration can be applied through the lateral thick pipe 21 and the vertical thick pipe 22 which are the supporting works of the form 1, and in this case, the lateral Since the vibration reaction force from the thick pipe 21 is strong, the pressing by the spring 16 is unnecessary. Therefore, there is an advantage that the equipment of the spring 16 can be omitted and the weight of the spring 16 can be reduced.

In addition, in the present example, the second support portion 14 causes the second guide 12 to
Since it is attached so that it can be moved left and right along, fine vibration can be applied in the left and right directions.

FIG. 4 shows the action when concrete is poured onto the wall 101. FIG. 4 (A) is an elevation view and FIG. 4 (B) is a plan view.

Also in this example, the main body 10 is moved to the vicinity of the wall 101, and then the arms 15 and 15 are rotated by 90 ° in the horizontal direction as shown in FIG.
Face 5, 15 face to face. And the first and second guides 1
The first and second support parts 13 and 14 are moved up and down or left and right along the lines 1 and 12 to be set to the initial position.

After that, the fresh concrete C is poured, the vibrations of the form vibrators 2, 2, 2 are started by the signal from the concrete sensor 3, and the control unit 17 selects the vibration waveform, adjusts the exciting force and the exciting frequency, etc. Also do.

While applying such vibration to the ready-mixed concrete C through the formwork 1 and the lateral end thick pipe 21 of the support work, the first and second support portions 13 and 14 are provided along the first and second guides 11 and 12. Is gradually moved to complete the concrete pouring of the wall 101.

Also in this case, the attachment mode of the second support portion 14 and the arm 15
It is possible to perform fine vibration in the left-right direction depending on the mounting manner and the number of the frame vibrators 2 and 2 attached to the frame vibrators 2.

Further, in the above embodiment, the arm 15 is connected to the first support portion 13
Although the arm 15 is pivotally attached to the arm 15 so that the arm 15 can be rotated only, the arm 15 may be movable in the left-right direction as shown in FIG. 3 (B). That is, the tip portion of the first support portion 13 is further extended outward, and the arm 15 is attached to the tip portion so as to be movable in the left-right direction (arrow A).

By doing so, for example, when compacting the pillar 100, the workable shape of the pillar (outer dimension)
Is enlarged, and when it is performed on the wall 101, there is an effect that an area that can be worked at one time becomes large.

In addition, in each of the above-described embodiments, a plurality of (two) arms are provided with one form vibrator, respectively, so that a plurality of form vibrators are provided as a whole. Of course, a plurality of form vibrators may be attached.

Further, in the above embodiment, the second guide 12 is provided between the first guides 11 and 11, but the second guide 12 is provided between the first support portions 13 and 13, for example. For example, it may be movable up and down. In that case, the form vibrator 3 provided on the second guide 12 can also be moved up and down (in this case, it may or may not be able to move in the left-right direction), and finer control / work can be performed. You can

Although the arm 15 is swung in the horizontal direction at about 180 ° in the above embodiment, the swivel angle range is arbitrary, and the swivel direction is not limited to the horizontal direction. May be combined).
In such a case, even if there is an obstacle in the horizontal plane,
You can work reliably.

<< Effects of the Invention >> According to the device of the present invention described in detail above, the following effects can be achieved.

(1) The device is compactly integrated and can be moved,
It is easy to handle and does not require complicated codes.

(2) The main body itself can be moved, and the form vibrator can be moved up and down, so that work in a wide work range can be easily performed.

(3) The arm equipped with at least one form vibrator is turned, and by appropriately selecting the turning angle, concrete compaction of a cylinder, a prism, a flat state, a curved wall, and other various shapes can be performed. Work can be performed easily.

(4) From (1) to (3) above, high-rise buildings and large P
Even when placing concrete on the C member, it is not necessary to divide the vibrating portion into a large number of sections, and without using a large number of vibrating devices, sufficient concrete compaction can be achieved with only one device according to the present invention. It can be carried out. Moreover, it is possible to vibrate at multiple points at the same time, a small amount of movement is required even in a wide working range, and automation is facilitated.

(5) Records of vibration of the form vibrator (vibration waveform, exciting force, exciting frequency, exciting time, etc.) are transmitted to the CPU of the control unit and the data recorder, temporarily stored, online,
Can be processed offline.

As a result, the compaction of concrete in the formwork can always be performed optimally.

[Brief description of drawings]

FIG. 1 shows an embodiment of an apparatus according to the present invention.
FIG. 1 (A) is a side view, FIG. 1 (B) is a rear view, FIG. 1 (C) is a plan view, and FIG. 2 is a perspective view showing an operation example of the device according to the present invention shown in FIG. 3 (A) is an elevation view of FIG. 2, FIG. 3 (B) is a plan view, and FIG. 4 (A) is a plan view showing an operation example of the apparatus according to the present invention shown in FIG. FIG. 4 (B) is a plan view and FIG. 5 is a view showing a conventional example. 2 ... Form vibrator 3 ... Concrete sensor 10 ... Main body, 11 ... First guide 12 ... Second guide, 13 ... First support 14 ... Second support, 15 ... … Arm 17 …… Control unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP 60-184168 (JP, A) JP 60-164555 (JP, A) JP 62-36107 (JP, B2)

Claims (2)

[Claims] 1. A movable main body is provided with a cantilever-supporting arm which can be swung up and down so as to be movable up and down, and a plurality of form vibrators and a concrete sensor are attached to a front portion of the arm, and An automatic concrete compaction device, characterized in that the control unit of the form vibrator is disposed on the main body. 2. An automatic concrete compactor according to claim 1, wherein a vibration sensor is attached to at least one of the form vibrators.