JPH04306361A - Automatic floor finisher - Google Patents

Abstract

PURPOSE:To speed up operations as well as raise finishing quality by a method in which the hanging level of a floor leveler is changed properly according to the condition of concrete face, and the moving direction of a crane is controlled by a level controller. CONSTITUTION:A floor leveler is hung by a crane whose hanging hook 12 can be moved to X and Y axial directions within the parallel face to concrete floor face. As the floor leveler, a scale slider 3 with a screw conveyer 19 or a trowel is used. Concrete which is placed is leveled off while properly changing the hanging level of the floor leveler according to the condition of the placed face. A level controller 21 having a level sensor to detect inclined angles is provided to the floor leveler, by which the moving direction of the crane 11 is controlled. The ground contact pressure is also finely regulated by the sensor of the floor leveler.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic floor finishing device for leveling a concrete floor surface evenly and flatly.

0002

2. Description of the Related Art Conventionally, this type of automatic floor finishing apparatus has a self-propelled rotating trowel. Because there are few plasterers who can finish a floor surface flat, and because the surface area that can be finished by hand is limited per unit time, a trowell (floor leveling machine) equipped with multiple swivel trowels is constructed, and this is used to create a flat surface for pouring. It is made to run on its own.

[0003] However, until the surface on which concrete is poured has hardened to a certain extent, the reaction force on the floor immediately after pouring is insufficient to support the weight of the trowell itself, which may cause dents in the floor surface. Ta. For this reason, much of the traditional leveling work by plasterers with wooden trowels still remained.

0004

[Problems to be Solved by the Invention] In addition to the problems described above remaining with the conventional trowel, there was also a need to roughly level the trowel to the extent that it could be used. The present invention has been made in view of the above-mentioned circumstances, and its object is to provide a floor finishing device that does not transmit the support reaction force of a floor leveling machine such as a trowel to the surface of poured concrete.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the automatic floor finishing device of the present invention is capable of moving a lifting hook in the X and Y axis directions in a plane substantially parallel to the concrete pouring floor surface. The floor leveling machine was suspended by a crane, and the level of suspension was changed according to the conditions of the concrete pouring surface. To do this, the floor leveling machine is equipped with a level sensor that detects its inclination angle, and this controls the moving direction of the crane, and the floor leveling machine's sensor is used to
This is done by finely adjusting the ground pressure. For rough leveling, the floor leveling machine may be a ruler shearing device equipped with a screw conveyor, and for finishing, the floor leveling machine may be a trowel.

[0006]

[Action] X in a plane almost parallel to the concrete pouring floor surface,
The hanging hook portion of the crane moves in the Y-axis direction and the vertical direction (Z-axis direction). The floor leveling machine is moved using this crane hoisting hook. In other words, use a crane to move the floor leveling machine to
, move in the Y-axis direction, and adjust the level. A level sensor is installed on the floor leveling machine to control the direction of movement of the crane and level the level. The lifting level is determined by changes in the lifting load. Therefore, there is no need to support the weight or movement reaction force of the floor leveling machine on the poured concrete surface, and there is no need to reinforce the floor support.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a sectional view of an automatic floor finishing device 1 using a ruler shearing device 3 capable of distributing and rough leveling. FIG. 2 is a perspective view of an automatic floor finishing device 1a that uses a finishing trowell 5 instead of a ruler shearing device 3 as a floor leveling machine. First, the automatic floor finishing apparatus 1 shown in FIG. 1 will be explained. In the floor concrete work, concrete 9 is first poured onto the deck plate 7. Next, the poured concrete 9 is distributed almost evenly along the surface of the deck plate 7, and it is roughened and rubbed with a ruler in order to make the surface flat. Finally, create a smooth horizontal finish. This last work is performed by the automatic floor finishing device 1a in Figure 2.
Do it with Both of these automatic floor finishing devices 1 and 1a are integrated with a crane 11.

The crane 11 has a lifting hook 12 supported in the Y-axis direction by a frame steel beam 13, and is supported in the X-axis direction by a movable beam 15 installed across the steel beams 13-13 so as to be movable in the axial direction. Has a supporting structure. The support hook 12 is configured to be adjustable in the vertical direction (Z-axis direction) by a hoist 17 that moves in the axial direction of the movable beam 15, that is, in the X-axis direction. Steel frame beam 13-13 in Y-axis direction
The movable beam 15 passed above in the X-axis direction is movable in the Y-axis direction, and this moving means may be one in which the movable beam 15 is supported on the frame steel beam 13 by a self-propelled cart. , it may be pulled by a wire. Similarly, the hoist 17 can also be moved in the axial direction by the movable beam 15. These moving routes and the level of the hanging hook 12 are controlled according to the situation according to a predetermined program or input information from the sensor. The ruler shearing device 3 is mainly based on a screw conveyor 19, and has a deck plate 7.
It is used to level the concrete 9 poured on top. Therefore, in order to reduce the adhesion resistance of the concrete 9, a vibrator is provided, and the screw conveyor 19 is rotated while being vibrated. In addition, a level controller 21 containing sensors that detect tilt angle and height displacement
is provided to transmit data for controlling the amount of movement of the crane 11 in each axial direction. That is, the level controller 21
is an electric sensor equivalent to a level gauge and a load meter, which calculates and outputs the inclination angle and ground pressure of the ruler shearing device 3 and the trowell 5, and controls the moving direction and lifting level of the crane 11. Therefore, the level controller 21 is also attached to the trowell 5, and the automatic floor finishing device 1a in FIG. 2 also uses a crane 11, similar to the automatic floor finishing device 1a in FIG. It has become. Since the trowell 5 is suspended by a crane 11, it is desirable to prevent it from swinging due to the rotational force of the rotating trowel, and it is a twin trowel that is provided with trowels extending in the radial directions of two rotating shafts that rotate in opposite directions. are using. A sensor 21a may be provided that detects the reaction force applied to the iron on the rotating shaft side and further detects the ground pressure. The trowell 5 itself was originally designed to adjust the ground pressure of the trowel, and in conjunction with the controller 21, a sensor 21a that detects the reaction force of the trowel controls the lifting level and movement direction of the crane, as well as the tilt of the trowel. Finely adjust the ground pressure by changing the In addition, the level controller 21
Separately, a sensor for detecting the hanging load may be provided on the side of the hanging hook 12 to detect the ground pressure. The hoist 17 is controlled based on this ground pressure.

The automatic floor finishing device 1 moves the movable beam 15 of the crane 11 and the hoist 17 in the X and Y axis directions while leveling the poured concrete 9 with the ruler shearing device 3, and also moves the moving beam 15 of the crane 11 and the hoist 17 in the X and Y axis directions, and also moves the concrete 9 that has been poured into the concrete 9 by moving the moving beam 15 of the crane 11 in the X and Y axis directions. While correcting the inclination caused by the force by controlling the hoist 17 in the Y-axis direction, the concrete is distributed and roughly leveled, and the ruler is moved. After that, the automatic floor finishing device 1 by Trowell 5
Finish the surface of concrete 9 flat and horizontally in step a.

0010

Effects of the Invention As explained above in detail, the automatic floor finishing device of the present invention can finish floor finishing by using a crane that can move the lifting hook in the X and Y axis directions in a plane substantially parallel to the concrete floor surface. The crane and floor leveling machine are integrated so that the leveling machine can be suspended and the level of suspension can be changed depending on the condition of the pouring surface, so the support reaction force of the leveling machine is transferred to the surface to be finished. There's no need to accept it. Therefore, there is no need to add support such as columns to temporarily support the floor, and there is no risk of disturbing the reinforcement on the floor, which has the effect of improving quality. Furthermore, since construction can be performed without considering the degree of curing of the concrete, there are no restrictions on the timing of work, increasing construction efficiency and allowing the concrete to be finished with free ground pressure. In other words, it has the effect of making it possible to finish the concrete according to its strength.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment in which the floor leveling machine is a ruler shearing device.

FIG. 2 is a perspective view of an embodiment in which the floor leveling machine is a trowel.

[Explanation of symbols]

1 Automatic floor finishing equipment 3 Ruler shearing device 5 Trowel 7 Deck plate 9 Concrete 11 Crane 12 Support hook 13　Structure steel beam 15　Moving beam 17 Hoisting machine 19 Screw conveyor 21 Level controller

Claims (4)

[Claims] [Claim 1] A floor leveling machine is suspended by a crane that can move the lifting hook in the X and Y axis directions in a plane substantially parallel to the concrete pouring surface, and the leveling machine is adjusted to suit the condition of the concrete pouring surface. An automatic floor finishing device characterized in that the lifting level can be changed by changing the lifting level. 2. The floor leveling machine is provided with a level sensor that detects its inclination angle, thereby controlling the moving direction of the crane, and finely adjusting the ground pressure using the sensor of the floor leveling machine. 2. The automatic floor finishing device according to claim 1, characterized in that: 3. The floor leveling machine according to claim 1, wherein the floor leveling machine is a ruler shearing device equipped with a screw conveyor.
or 2. The automatic floor finishing device described in any of the above. 4. The automatic floor finishing apparatus according to claim 1, wherein the floor leveling machine is a trowel.