JPS6073962A - Automatic clamp solidifying concrete - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] It is known that in the construction of a conventional structure, the ready-mixed concrete is compacted by applying vibrations to it. In order to know whether or not the vibrator is running, the vibrator is driven by visually inspecting it from the opening at the top of the formwork, but if the structure is large, just visually inspecting it becomes a difficult task, and the power source that drives the vibrator must be located at the Not only did it have to be communicated to the workers via transceiver, etc., but the lower part of the window frame etc. could not be seen at all, so the vibrator was driven purely by intuition based on the condition of the surrounding ready-mixed concrete. However, the concrete often suffers from vibrations until the fresh concrete is poured.

The present application relates to an automatic concrete compaction method that reliably applies vibrations after pouring fresh concrete without applying vibrations to the unconcrete areas as described above.

In the present application, the vibration frequency, current, and voltage of the vibrator are different when the formwork is not filled with fresh concrete and when the formwork is filled with fresh concrete. Utilizing this, before pouring fresh concrete, the vibrator is run idly and the frequency, current, and voltage at that time are checked and input into the control device as input data. This invention relates to an automatic concrete compaction method in which when fresh concrete is placed and the vibration frequency, current, and voltage of the vibrator change, a signal is automatically sent from a control device to operate the vibrator.

Now, to explain the example, a vibrator (2) is attached to the outside of the formwork (1), and the vibrator (2) is connected to a power source (3).
) to form a circuit (4), and a switch (6) that opens and closes according to a signal sent from the control device (5) and a vibration converter (QO) are connected to a part of the circuit (4). .

Separately, the vibrator (2) K is connected to a frequency measuring device (force and current/voltage measuring device (8)).

(9) is a data checking device that checks the numerical values sent from the frequency measuring device (force and current/voltage measuring device (8)) and sends the organized signals to the control device (5) for input.

With the above configuration, the vibrator (2) is operated idly before pouring fresh concrete, and the frequency, current, and voltage at that time are measured using the constant instruments (7) and (8) on both sides. is sent to the data check device (9), and the data check device (9)
) is input into the control device (5) and prepared, the vibrator (2) is temporarily stopped, and the vibrator (2) is run idly for short periods at regular intervals while pouring fresh concrete. Continuing to place fresh concrete while stopping and stopping.

When the fresh concrete reaches the point where the lifting machine (3) is installed, the frequency, current, and voltage change, so the values are sent from the measuring device (force (8) to the data check device (9) and converted into a signal. When sent to the control device (5), the control device (5) sends a signal formed by the change difference to the circuit (4) of the vibrator (2).
) to close the circuit and drive the vibrator (2) to compact the fresh concrete. The frequency of the vibrator is changed depending on the degree of compaction of the concrete (judged by frequency, current, and voltage).

In this application, as in Narukami, a vibrator is attached to the outside of the formwork, and before pouring fresh concrete, the vibrator is run dry at a frequency that does not have a negative effect on the formwork, and the vibration generated at that time is After checking the number of images, current, and voltage of the machine and inputting the data into the control device, the vibrator will start pouring when the ready-mixed concrete is poured to the position where the vibrator is installed. Since the frequency, current, and voltage of the vibrator change, this data is sent to the control device again, and then the control device sends a signal formed by the difference in data to the switch in the circuit of the vibrator to energize it and respond to the difference in data. It is characterized by driving the vibrator at a certain frequency, which makes it easy to achieve the desired purpose.

[Brief explanation of the drawing]

The figure is a block diagram of an embodiment of the present application. Patent applicant: Toda Construction Co., Ltd. 1 other person

Claims (1)

[Claims] (1) A vibrator is attached to the outside of the formwork, and before pouring fresh concrete, the vibrator is run dry at a frequency that does not adversely affect the formwork, and the vibration of the vibrator at that time is After checking the number, current, and voltage and inputting the data into the control device, when the fresh concrete is poured to the position where the vibrator is installed, the vibration frequency of the vibrator, Since the current and voltage change, this data is sent to the control device again, and then the control device sends a signal formed by the data difference to the switch in the circuit of the vibrator, which energizes it and vibrates at a frequency according to the data difference. An automatic concrete compaction method characterized by driving a vibrator.