JPH0759851B2 - Concrete placing method and device by automatic sensing of concrete top position - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a concrete pouring method for compacting fresh concrete filled in concrete pouring in construction and civil engineering by vibrating a form vibrator. And the device.

[Conventional technology]

As an example of conventional technology in such a field, FIG.
As shown in (b), at a concrete pouring site, a form vibrator 2 is appropriately attached to the form 1, and, for example, as shown in (a), the upper end portion of the ready-mixed concrete 5 filled in the form 1, That is, the operator 3 hits the top end 6, b with a mallet 4 or the like on the outside of the mold 1, and the impact sound is judged by the ear, and as shown in FIG. Concrete 5 is crown 6,
The mold vibrating machine 2 was operated in the state where the temperature reached to (b) to compact the ready-mixed concrete 5. Another example of the prior art is disclosed in Japanese Patent Laid-Open No. 61-64957, and FIG. 9 is an explanatory view of the structure thereof. As shown in FIG. 9, the ready-mixed concrete 5 is filled in the mold 120, and the start sensor 122-1 is operated by filling up to the installation position of the compaction start sensor 122-1.
Sends a signal from the controller 123 to the controller 123 to operate the vibrator 121 set outside the form 120 to fill the fresh concrete 5 while vibrating the form 1, and compact when the ready concrete 5 is filled to a predetermined position. The end sensor 122-2 operates and sends a signal from the compaction end sensor 122-2 to the controller 123, and
121 is automatically stopped, these are passed through the converter 124, and the operation panel 125 and the graphic display 12 provided in the remote part
6, managed by monitor TV 127 and surveillance camera 128,
The whole process was automatically controlled from a remote part.

[Problems to be Solved by the Invention]

However, as shown in FIG. 8, as an example of a conventional technique, a form hammered from the outside of the form using a mallet or the like, the part of the concrete top end was confirmed by audible sound, and the form vibration was attached to the outside of the form. The method of operating the machine and compacting concrete depends on the degree of proficiency of the worker and the variation due to site conditions.
There is a drawback that it is not a reliable construction method.

In addition, the conventional apparatus shown in FIG. 9 is not only complicated but also expensive.

An object of the present invention is to eliminate the drawbacks of the prior art, enable a precise construction method with a simple, inexpensive, and easy-to-use device, and a concrete placing method by automatically detecting the top end portion of concrete in a formwork, and To provide the equipment.

[Means for Solving the Problems]

In order to solve the above problems, a concrete pouring method,
In the method of placing concrete, in which a detector of the filling portion of the fresh concrete and the form vibrator are attached to the form, and the compacting is performed by providing an operating means, the top position of the filled fresh concrete is detected, By sending a sensing signal and receiving a sensing signal for a predetermined period of time, the form vibrator is activated to compact the concrete. Preventing malfunction by using a fresh concrete filling site sensor provided with means for transmitting an end position sensing signal, means for receiving the sensing signal and operating the form vibrator, and malfunction preventing means for the sensing signal. The means does not activate the form vibrator when receiving the sensing signal of the top position of the ready-mixed concrete for a short time, and constitutes a malfunction preventing means of the sensing signal which is activated by receiving the sensing signal for a predetermined time.

[Action]

A concrete placing method and device for mounting compaction by mounting a sensor for a filling portion of fresh concrete and a form vibrator on a formwork and compacting by providing an operating means, and means for preventing malfunction of a detection signal Since it was set up as described above, the sensor detects the top position of the green concrete filled in the mold,
The sensing signal does not activate the form vibrator with a short reception,
Since it starts by receiving for a predetermined time, it does not work by detecting with a short time sensor such as water, but starts the form vibrator by receiving for a predetermined time after accurately detecting the top end surface of fresh concrete Therefore, it is possible to obtain a method capable of performing accurate compaction, and since the apparatus is constructed as described above, the conventional drawbacks are eliminated, and a simple and inexpensive automatic and remote control is possible. The device can be obtained.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing the entire embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of the embodiment of the present invention, FIG. 3 is a sectional explanatory view of a concrete filling portion detector 10 , and FIG. 4 is a formwork. Vibrator 50
Sectional illustration, Fig. 5 formwork vibrator switch case 70
6A is a block diagram showing the configuration of the reception signal confirmation circuit 76 of FIG. 2, FIG. 6B is a circuit diagram of FIG. 6A, and FIG. It is a time chart of an example.

As shown in Fig. 1, 10 is a concrete filling site detector,
20 is a signal line, 30, 40 are connection connectors, 50 is a form vibrator, 6
0 is a control line, 70 is a form vibrator switch case, 71 is an automatic confirmation lamp, 72 is an automatic-manual switch, 80 is a power line, and 90 is an outlet.

As shown in the drawing, in the embodiment of the present invention, the concrete filling portion sensor 10 is connected to the form vibrator 50 by the signal line 20, and the form vibrator 50 is connected by the control line 60 to the form vibrator switch case part 70.
Further, the switch case 70 is connected to a power supply device (not shown) through a power supply line 80 by a power supply line 80, and the whole structure is formed.

As shown in FIGS. 2 and 3, 13 is a sensing unit, 14 is a power supply unit, 15 is a transmission unit, 16 is a sensing display lamp, 17 is a vibration end lamp, and 18 is an electric amplification unit.

As shown in FIG. 3, the concrete-filled portion sensor 10 has a transparent portion 10-1 on the surface, protrudes to the back, and is fitted into a hole 19-1 provided in the formwork member 19 to come into contact with fresh concrete (not shown). A sensing member 13 having a first electrode 11 and a second electrode 12 for sensing and a sensing member 13 having a projecting side surface and a mounting member 21 on an upper portion 10-2.
A plastic case to be attached to 19, an electric amplification section 18, a power supply section 14, a transmission section 15, a sensing display lamp 16 and a vibration end lamp connected to the first electrode 11 and the second electrode 12 provided in the case. It is composed of 17 and a signal line 20. As the signal means from the transmission unit 15, known publicly known means such as wired light is used.

As shown in FIGS. 2 and 4, reference numeral 51 denotes a form vibrator unit, and the form vibrator 50 has the form vibrator unit 51 built therein and holds the signal line 20 and the control line 60. Although not shown, it is attached to a predetermined position of the form member 19 by attaching means.

As shown in FIGS. 2 and 5, a form vibrator case portion 70 connected to the control line 60 and the power supply line 80 is provided.

71 is an automatic confirmation lamp, 72 is an automatic-manual switch, 73
Is a receiving circuit section, 74 is a control circuit section, 75 is an operation circuit section, and 76 is a received signal confirmation circuit, which are connected as shown in FIG. 2 and arranged as shown in FIG. The automatic confirmation lamp 71 uses a light emitting diode (LED), but is not necessarily limited to this.

6 (a) and 6 (b) are a block diagram and a circuit diagram of the reception signal confirmation circuit 76. As shown in FIG.

76-1 is a terminal, 76-2 is a waveform shaping circuit, 76-3 is an input switching circuit, 76-4 is a timing circuit, 76-5 is a timer circuit, 76-6 is a signal discrimination circuit, and 76-7 is a terminal. is there. The circuit is a waveform shaping circuit 76-2, an internal circuit formed by a CR circuit and a Schmitt gate, and an input switching circuit 76-3 is effective only in the automatic mode and does not operate in the manual mode.
76-4 is the timing for the timer start signal and the timer reset release signal. The timer circuit 76-5 is for CR
A specific number of timer circuits and signal discriminating circuit 76-6 discriminate whether both the timer output and the input signal are valid.

Next, the operation of this embodiment will be described.

As described above, the hole 19-in the frame member 19 for concrete placement
The sensing section 13 of the concrete-filled portion sensor 10 is inserted into the unit 1 and mounted by the mounting means 21, and the form vibrator 50 is mounted at a required position. The connection connector (30) of the signal line (20) taken out from the concrete filling part detector ( 10) is connected to the connection connector (40) of the form vibrator ( 50 ). As shown in the time chart of FIG. 7, the top of the fresh concrete reaches the sensing portion 13 in the frame member 19 ((1), fresh concrete surface, s ₁ ), and the first
When the electrode 11 and the second electrode 12 are brought into contact with each other, the internal circuit of the concrete filling portion detector 10 is activated, and the detection indicator lamp 16
At the same time as lights up, the sensing signal is sent from the transmitter 15.
((2), concrete-filled part detector, t ₁ ). Receiving circuit 73 of form vibrator switch case 70 of form vibrator 50
However, when the sensing signal is received, it is for a short time ((3), received signal confirmation circuit, t _{1 to} t ₁ ′, t _{2 to} t ₃ ). That is, the control circuit unit 74 operates after sampling for several seconds to supply the power from the power supply device to the form vibrator motor unit 51, and the form vibrator 50.
To drive the vibration ((4), Form vibrator, t ₃
~t _4,) mold after a predetermined time has elapsed compaction by vibration of the vibrator 50, the mold vibrator 50 automatically stops the, and formwork vibrator concrete filling site detector from the switch case 70
A vibration end signal is sent to 10 , and the vibration end lamp 17 of the concrete filling portion sensor 10 is turned on ((5), vibration end lamp, t ₄ ). At this time, compaction of green concrete is completed ((1) s ₃ ). In the example of FIG. 7, the short time T ₂ = 3 seconds and the predetermined time T ₄ = 40 seconds. In this embodiment, the form-vibrator 50 is operated by the automatic-manual changeover switch 72.
It is also possible to turn ON / OFF manually.

Further, the transmitting section 15 of the concrete filling portion sensor 10 and the receiving circuit section 73 of the form vibrator switch case 70 may be any known means.

〔The invention's effect〕

As described above in detail, the invention of claim 1 detects the top end position of the fresh concrete filled in the mold with the sensor and operates the form vibration machine for the detection signal for a predetermined time to clamp the concrete. Since it is a method of compacting, it has the effect of eliminating the conventional drawbacks and obtaining a compacting concrete pouring method by grasping the exact top end position that prevents malfunctions that are simple and inexpensive and can be automatically and remotely controlled. .

The apparatus of claims 2 and 3 has the effect of obtaining the concrete pouring apparatus of the method of claim 1.

[Brief description of drawings]

FIG. 1 is a perspective view showing the entire embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of the embodiment of the present invention, FIG. 3 is a sectional explanatory view of a concrete filling portion detector 10 , and FIG. 4 is a formwork. Vibrator 50
Sectional illustration, Fig. 5 formwork vibrator switch case 70
6A is a block diagram showing the configuration of the reception signal confirmation circuit 76 of FIG. 2, FIG. 6B is a circuit diagram of FIG. 6A, and FIG. FIG. 8 is a time chart of the embodiment, FIG. 8 is an explanatory diagram of a conventional example, and FIG. 9 is a configuration explanatory diagram of another conventional example. 1 ... formwork, 2 ... formwork vibrating machine, 3 ... worker, 4 ... hammer, etc.
5 ... Ready-mixed concrete, 6 ... Top end a, b, 10 ... Concrete filling site detector, 11 ... First electrode, 12 ... Second electrode, 13 ...
Sensor, 14 ... Power source section, 15 ... Transmitting section, 16 ... Sensing indicator lamp, 17 ... Excitation lamp, 18 ... Electric amplification section, 19 ... Form member, 20 ... Signal line, 21 ... Mounting means, 30, 40 ... Connection connector, 50 ... Form vibrator, 51 ... Form vibrator motor part, 60 ... Control line, 70 ... Form vibrator switch case part, 71 ... Automatic confirmation lamp, 72 ... Automatic-manual switch, 73 ... Reception circuit section, 74 ... Control circuit section, 75 ... Operation circuit section, 76 ... Reception signal confirmation circuit, 76-1 ... Terminal, 76-2 ... Wave shaping circuit, 76-3
... Input switching circuit, 76-4 ... Timing circuit, 76-5 ... Timer circuit, 76-6 ... Signal discrimination circuit, 76-7 ... Terminal, 80
… Power line, 90… Outlet, 120… Formwork, 121… Vibrator,
122 ... Detection sensor, 123 ... Controller, 124 ... Converter, 125 ... Operation panel, 126 ... Graphic display, 127 ... Monitor TV, 128 ... Surveillance camera.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yoshikazu Suzuki 1-17-3 Hamamatsucho, Minato-ku, Tokyo Within Hayashi Vibrator Co., Ltd. (72) Inventor Kohiro Otsubo 1-17-3 Hamamatsucho, Minato-ku, Tokyo (56) References JP-A 64-47481 (JP, A) JP-A 60-164555 (JP, A) JP-A 62-185962 (JP, A) JP-A 60- 73961 (JP, A)

Claims (3)

[Claims] 1. A method for placing concrete, in which a detector for a filling portion of fresh concrete and a form vibrator are mounted on a formwork, and compaction is performed by providing an operating means, wherein a top end of the filled fresh concrete is provided. Detecting the position, transmitting the sensing signal, and receiving the sensing signal for a predetermined time activates the form vibrator to compact the concrete. Setting method 2. A fresh concrete filling portion detector mounted on the formwork and provided with means for transmitting a sensed signal of the top position of the fresh concrete, and means for receiving the sensed signal and operating the form vibrator. The concrete pouring device according to claim 1, characterized in that it is configured by means for preventing malfunction of the sensing signal. 3. The form vibrator is not activated by receiving a detection signal for a short time at the top position of ready-mixed concrete, but the reception of a detection signal for a predetermined time is confirmed by a reception signal confirmation circuit and the form oscillator is activated. 3. A means for preventing malfunction of a sense signal for
Concrete pouring equipment