JP2995471B1 - Form fixed table floating method and floating device - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To float or tilt and float a turntable by floating or tilting a turntable, to spread concrete to every corner in the formwork and effectively compact it. And a floating device capable of efficiently removing bubbles in concrete. SOLUTION: A table 23 supported so as to be able to float on a horizontal axis 22b, two floating mechanisms 24A and 24B for floating the table 23 on a horizontal axis 22b, and a table 23
And a turntable driving mechanism for rotating the turntable 30 by a predetermined angle with respect to the table 23 or rotating the turntable 30 with respect to the table 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of floating a form-fixing table, thereby causing the form on the form-fixing table to float so that concrete to be poured into the form spreads to every corner of the form. TECHNICAL FIELD The present invention relates to a method and a device for floating a form-fixing table for effectively compacting.

[0002]

2. Description of the Related Art As described above, a vibrating device is used to efficiently remove air bubbles in concrete and to form a dense concrete secondary product. As an example of this vibration device, the mounting table is moved by moving an unbalanced weight disposed on a plurality of parallel rotating shafts attached to a vibration table in a circumferential direction of the rotating shaft and rotating the plurality of rotating shafts. Japanese Patent Application Laid-Open No. 9-141202 discloses an apparatus that applies vertical vibration or horizontal vibration to a mold frame fixed to the mold.

[0003]

The conventional vibration device is configured to apply horizontal vibration in a direction perpendicular to the rotation axis. Therefore, the molds on the production line are usually placed on the placing table in the same direction and are subjected to vibration, but when the rotation axis is parallel to the longitudinal direction of the molds, However, there is a disadvantage that the horizontal vibration cannot be effectively applied to the concrete, and the concrete cannot be effectively compacted.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned inconveniences. By floating or tilting the form-fixing table, the form on the form-fixing table is lifted or tilted. Provided are a method and a device for floating a form-fixing table, which can be floated, spread concrete to every corner in the form, effectively compact, and efficiently remove bubbles in the concrete. Things.

[0005]

According to the present invention, there is provided a method for floating a fixed form table, comprising: a step of forming a floating shaft for floating the fixed form table when concrete is poured into the form on the fixed form table; After arbitrarily setting the form-fixing table to float at a predetermined amplitude, return the form-fixing table to the horizontal state, or when injecting concrete into the formwork on the form-fixing table, After setting the floating axis to float the frame fixed table so as to rotate sequentially, the form fixed table is floated at a predetermined amplitude, and then the form fixed table is returned to the horizontal state, or the form fixed. When pouring concrete into the formwork on the table, the floating axis for floating the formwork fixed table is set arbitrarily, and the mold is set in a state where the formwork fixed table is inclined in the axial direction perpendicular to the floating axis. Tilt the frame fixed table at a predetermined amplitude After 浮揺 is intended to return the mold stationary table in a horizontal position.

In another aspect of the present invention, there is provided a table supported so as to be able to float on a predetermined horizontal first axis, and the table is provided with a first horizontal axis.
At least one floating mechanism for floating on a shaft, a turntable rotatably mounted on the table, and a turntable drive mechanism for rotating or rotating the turntable by a predetermined angle with respect to the table. It is.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a plan view showing a floating device according to a first embodiment of the present invention, FIG. 2 is a right side view in which a part of FIG. 1 is cut away, FIG. 3 is an exploded perspective view showing a schematic configuration of a cross universal joint, FIG. 4 is an explanatory diagram showing the configuration of the spherical joint. 1 and 2, illustration of the hydraulic mechanism is omitted.

In these figures, reference numeral 1 denotes a base, and 2 denotes a cross universal joint attached to the upper side of the base 1. The cross universal joint 2 includes lower brackets 2a, 2a attached to the base 1. A cross shaft 2 in which both ends of one orthogonal cross shaft are supported by lower brackets 2a, 2a
b and both ends of the other shaft of the cross shaft 2b
Upper brackets 2c, 2c attached below a central portion of the mounting table 3, which will be described later.

Reference numeral 3 denotes a placing table as a formwork fixing table, and a formwork 41 for molding a secondary concrete product.
Is placed. Reference numerals 4A and 4B denote clamps for fixing the formwork 41 on the mounting table 3. Reference numerals 5A, 5B, 5C, and 5D denote floating mechanisms. Each of the floating mechanisms 5A, 5B, 5C, and 5D is positioned on an extension of each axis of the cross shaft 2b and concentric with the center of the cross shaft 2b. , Between the base 1 and the mounting table 3.

Then, each of the floating mechanisms 5A, 5B, 5C, 5
D is a hydraulic cylinder 6 including a cylinder body 6a and a piston rod 6b, a lower fixed bracket 8 attached to the base 1, and rotatably supporting a lower end portion of the cylinder body 6a via a pin 7. An upper fixed bracket 9 attached to the lower surface of the mounting table 3, a pin 10 rotatably supporting the upper end of the piston rod 6b at the lower end of the upper bracket 9, and the spherical joint 1
1 and 1. In addition, the spherical joint 11
It is composed of a spherical seat 11a attached to the upper end of the piston rod 6b, and a spherical member 11b fitted to the spherical seat 11a and through which the pin 10 is inserted.

Next, the floating will be described. First, the case where the axis passing through the floating mechanisms 5A and 5C is used as the floating axis will be described. When the floating mechanism 5B is extended and contracted from the horizontal neutral position and returned to the neutral position, the floating mechanism 5B is used. Floating mechanism 5 for the same stroke as the extension stroke of
When D is contracted and extended from the neutral position in the horizontal state to return to the neutral position, and when the floating mechanism 5B is contracted and extended from the neutral position in the horizontal state and returned to the neutral position, the contraction stroke of the floating mechanism 5B and By continuously extending and contracting the floating mechanism 5D by the same stroke and returning it to the neutral position, the mounting table 3 is used with the floating mechanisms 5A and 5C as the floating axes.
Can be floated.

Next, a description will be given of a case where the axis passing through the floating mechanisms 5B and 5D is lifted as a floating axis. When the floating mechanism 5A is extended and contracted from the neutral position in the horizontal state and returned to the neutral position, The floating mechanism 5C is retracted and extended from the horizontal neutral position to the neutral position by the same stroke as the extension stroke of the floating mechanism 5A, and the floating mechanism 5A is retracted and extended from the horizontal neutral position. When returning to the neutral position, the floating mechanism 5C is extended and contracted by the same stroke as the contraction stroke of the floating mechanism 5A to continuously return to the neutral position, thereby mounting the floating mechanisms 5B and 5D as floating axes. The placing table 3 can be floated.

In the case where the shaft is rotated by 22.5 degrees clockwise from the axis passing through the floating mechanisms 5A and 5C as the floating axis, that is, in the case of floating along the floating axis Xa shown in FIG. Is explained, a line segment A connecting point A and point B
B is divided about 11:26 by the floating axis Xa, and the point C
A line segment CD connecting the point D and the point D is also about 11:
When the floating mechanism 5A is contracted and extended at a ratio of 11 from the neutral position in the horizontal state to return to the neutral position, the floating mechanism 5B is extended and contracted at a ratio of 26 from the neutral position in the horizontal state. To return to the neutral position, extend and contract the floating mechanism 5C from the neutral position in the horizontal state at a ratio of 11 and return to the neutral position, and contract and extend the floating mechanism 5D from the neutral position in the horizontal state at a ratio of 26. To return to the neutral position and extend and contract the floating mechanism 5A from the horizontal neutral position at a ratio of 11 to return to the neutral position, retract and extend the floating mechanism 5B from the horizontal neutral position at a ratio of 26. To return to the neutral position, and the floating mechanism 5C contracts and extends at a ratio of 11 from the neutral position in the horizontal state to return to the neutral position, and the floating mechanism 5D
Is continuously extended and contracted at a ratio 26 from the neutral position in the horizontal state to return to the neutral position, whereby the mounting table 3 can be floated about the floating axis Xa.

Next, a case in which an axis rotated clockwise by 30 degrees from an axis passing through the floating mechanisms 5A and 5C is used as a floating axis, that is, a case in which the axis is rotated about a floating axis Xb shown in FIG. To explain, a line segment AB connecting point A and point B is divided at about 27:47 by the floating axis Xb, and point C and point D
Is also divided at about 27:47 by the floating axis Xb, so that when the floating mechanism 5A is contracted and extended from the neutral position in the horizontal state at a ratio 27 and returned to the neutral position, the floating mechanism is used. 5B is extended and contracted at a ratio 47 from the horizontal neutral position to return to the neutral position, and the floating mechanism 5C is extended and contracted at a ratio 27 from the horizontal neutral position to return to the neutral position, and the floating mechanism 5D is provided. Is retracted from the horizontal neutral position at a ratio of 47 and extended to return to the neutral position, and the floating mechanism 5A
Is extended and contracted from the horizontal neutral position at a ratio 27 to return to the neutral position, and the floating mechanism 5B is contracted and extended at a ratio 47 from the horizontal neutral position to return to the neutral position, and the floating mechanism 5C is returned to the neutral position. By contracting and extending from the neutral position in the horizontal state at a ratio 27 and returning to the neutral position, and continuing to extend and contract the floating mechanism 5D at a ratio 47 from the neutral position in the horizontal state and returning to the neutral position, The mounting table 3 can be lifted about the lifting axis Xb.

Further, a description will be given of a case in which an axis rotated 45 degrees clockwise from an axis passing through the floating mechanisms 5A and 5C is used as a floating axis, that is, a case in which the axis is rotated about a floating axis Xc shown in FIG. Then, a line segment AB connecting point A and point B is divided 1: 1 by the floating axis Xc, and a line segment CD connecting point C and point D is also divided 1: 1 by the floating axis Xc. Therefore, when the floating mechanism 5A is contracted and extended at a ratio of 1 from the neutral position in the horizontal state and returned to the neutral position, the floating mechanism 5B is extended and contracted at a ratio of 1 from the neutral position of the horizontal state and returned to the neutral position. The floating mechanism 5C is extended and contracted at a ratio of 1 from the neutral position in the horizontal state to return to the neutral position.
D is contracted and extended from the neutral position in the horizontal state at a ratio of 1 to return to the neutral position, and the floating mechanism 5A is extended and contracted at a ratio of 1 from the neutral position in the horizontal state to return to the neutral position, and is floating. The mechanism 5B contracts and expands from the neutral position in the horizontal state at a ratio of 1 to return to the neutral position, and the floating mechanism 5C contracts and extends from the neutral position in the horizontal state at a ratio of 1 to return to the neutral position. By continuously extending and contracting the 5D from the neutral position in the horizontal state at a ratio of 1 to return to the neutral position, the mounting table 3 can be swung about the floating axis Xc.

Although the description of the setting of the floating axis other than the above is omitted, any floating axis within 360 degrees can be set in the same manner. When the mounting table 3 is floated in this way, it is necessary to move the strokes at the same speed within the same time even if the extension stroke or the contraction stroke of each of the floating mechanisms 5A to 5D is different.

As described above, the direction of the axis orthogonal to the floating axis for floating the mounting table 3 is changed to the form 41 as described above.
Is set in the longitudinal direction, and the mounting table 3 is floated with a predetermined amplitude, and then the mounting table 3 is returned to a horizontal state, so that the concrete is spread to every corner in the formwork 41 and is effectively tightened. Since it is possible to harden and efficiently remove air bubbles in the concrete, no voids due to the air bubbles are formed on the surface, and a dense concrete secondary product having a smooth surface can be molded.

Next, a description will be given of a floating operation for sequentially rotating the floating shaft. As described above, after the shafts passing through the floating mechanisms 5A and 5C are used as the floating axis, the respective floating mechanisms 5A to 5D are rotated clockwise, for example, by 5 degrees.
Are sequentially controlled as described above, so that the floating shaft for floating the mounting table 3 can be rotated. When the mounting table 3 is floated in this way, it is necessary to move the strokes at the same speed within the same time even if the extension stroke or the contraction stroke of each of the floating mechanisms 5A to 5D is different.

As described above, after the mounting table 3 is rotated at a predetermined amplitude by rotating the floating shaft for lifting the mounting table 3, the mounting table 3 is returned to a horizontal state, thereby enabling concrete Can be spread out to every corner in the formwork 41 and can be effectively compacted, and air bubbles in the concrete can be efficiently removed, so that no voids due to air bubbles are formed on the surface, and the surface is smooth and smooth. Dense concrete secondary products can be molded.

Next, the tilt floating will be described. First,
As described above, the floating axis for floating the mounting table 3 is arbitrarily set, and the mounting table 3 is inclined in an axial direction orthogonal to the floating axis, for example, as shown in FIG. 3 with a predetermined amplitude, for example, by extending or contracting the floating mechanisms 5A and 5C, or by floating the mechanisms 5B and 5D.
Can be tilted and floated by extending or contracting.

When the mounting table 3 is tilted and floated as described above, for example, as shown in FIG.
After inflating one side in the parallel longitudinal direction at a predetermined amplitude while pouring concrete into the side wall portion, the lower side in FIG. 8 is raised, and the higher side is lowered, and the lower side is lowered. The other in the parallel longitudinal direction of the formwork 41 is floated at a predetermined amplitude while concrete is injected into the side wall portion, for example, the floating mechanisms 5A, 5C are extended or contracted, or the floating mechanisms 5B, 5B, By extending or contracting the 5D and returning the mounting table 3 to the horizontal state,
Since the concrete can be spread to every corner in the formwork 41 and effectively compacted, and the bubbles in the concrete can be efficiently removed, no voids due to the bubbles are formed on the surface, and the surface is smooth. Can be used to mold a dense concrete secondary product.

When tilting and floating in this way, the concrete table is poured into the formwork in the state shown in FIG. 8 while the concrete table is floated at a predetermined amplitude, and then the mounting table 3 is returned to the horizontal state. Some concrete products complete the pouring of concrete.

FIG. 9 is a plan view showing a floating device according to a second embodiment of the present invention, and FIG. 10 is a right side view with a part of FIG. 9 cut away. 9 and 10, the illustration of the hydraulic mechanism is omitted. In these figures, 2
Reference numeral 1 denotes a base, 22 denotes a joint attached to the upper side of the base 21, and the joint 22 is supported by lower brackets 22a, 22a attached to the base 21, and the lower brackets 22a, 22a. A horizontal shaft 22b, and upper brackets 22c, 22c that support the horizontal shaft 22b and are attached below the central portion of the table 23.

Reference numerals 24A and 24B denote floating mechanisms. Each of the floating mechanisms 24A and 24B passes through the center of the horizontal axis 22b in the longitudinal direction and extends on the extension of the axis orthogonal to the horizontal axis 22b. So that it is located on the concentric circle
It is arranged between the base 21 and the table 23. Each of the floating mechanisms 24A and 24B includes a cylinder body 25a.
And hydraulic cylinder 25 comprising piston rod 25b
A lower fixing bracket 27 attached to the base 21 and rotatably supporting a lower end portion of the cylinder body 25a via a pin 26; an upper fixing bracket 28 attached to the lower surface of the table 23; Bracket 2
8 and a pin 29 for rotatably supporting the upper end of the piston rod 25b.

Reference numeral 30 denotes a turntable functioning as a formwork fixing table, which is attached to the table 23 so as to be rotatable around an intersection of a horizontal shaft 22b and a line connecting the two floating mechanisms 24A and 24B. , Gear 30 on the outer circumference
a is provided. Reference numerals 31A and 31B denote clamps for fixing the mold 41 on the turntable 30. Reference numeral 32 denotes a motor attached to the table 23, and a gear 33 attached to a rotating shaft 32 a meshes with a gear 30 a of the turntable 30.

Although a detailed description of the operation of the second embodiment is omitted, as described above, the two floating mechanisms 24A, 2A
The table 23 and the turntable 30 can be floated by extending and contracting the 4B in the opposite direction with a predetermined amplitude from the neutral position in the horizontal state. By operating the two floating mechanisms 24A and 24B in this manner, the table 2
With the 3 and the turntable 30 floating,
When the motor 32 is operated to rotate or rotate the turntable 30 with respect to the table 23 by a predetermined angle, the longitudinal direction of the mold 41 fixed to the turntable 21 may be orthogonal to the floating axis, for example. The longitudinal direction of the frame 41 can be set at an arbitrary angle with respect to the floating axis, or the longitudinal direction of the mold 41 can be rotated with respect to the floating axis.

The table 23 and the turntable 30 are tilted by operating the two floating mechanisms 24A and 24B, and the turntable 30 is rotated to the state shown in FIG. . Therefore, the same effects as those of the first embodiment can be obtained in the second embodiment. Further, in the second embodiment, the turntable 30 can be brought into a desired floating state by the two floating mechanisms 24A and 24B and the turntable driving mechanism, so that the two floating mechanisms 24A and 24B are provided. The hydraulic mechanism (not shown) for driving the motor has a simple configuration, and an inexpensive floating device can be provided.

In the above-described first embodiment, the four floating mechanisms 5A to 5D are used for floating, but two floating mechanisms for determining two orthogonal axes, for example, two floating mechanisms 5A and 5B, or The two floating mechanisms 5B and 5C, the two floating mechanisms 5C and 5D, or the two floating mechanisms 5D and 5A alone can be used for the floating. In the second embodiment, 2
Although the two floating mechanisms 24A and 24B are used for the floating, only one of the floating mechanisms, for example, the floating mechanism 24A or the floating mechanism 24B, can be used for the floating.

Further, the turntable driving mechanism is connected to the gear 3
0a, the motor 32, and the gear 32a, but other configurations may be used as long as the turntable 30 can be rotated or rotated by a predetermined angle. Also, when floating, by changing the amplitude width in several steps,
Further, the concrete can be spread to every corner in the formwork 41 and effectively compacted, and the air bubbles in the concrete can be removed more efficiently, so that no voids due to the air bubbles are formed on the surface. It is possible to mold a concrete secondary product having a smooth surface and a denser structure.

[0030]

As described above, according to the method of floating the form-fixing table of the present invention, concrete can be spread to every corner in the form, effectively compacted, and bubbles in the concrete can be reduced. Since it can be removed efficiently, voids due to air bubbles are not formed on the surface, and a concrete secondary product having a smoother surface and a higher density can be molded.

According to the floating device of the present invention, the turntable can be brought into a desired floating state by at least one floating mechanism and the turntable driving mechanism, so that the floating mechanism is driven. The hydraulic mechanism has a simple structure,
An inexpensive floating device can be provided.

[Brief description of the drawings]

FIG. 1 is a plan view showing a floating device according to a first embodiment of the present invention.

FIG. 2 is a right side view in which a part of FIG. 1 is cut away.

FIG. 3 is an exploded perspective view showing a schematic configuration of a cross universal joint.

FIG. 4 is an explanatory diagram showing a configuration of a spherical joint.

FIG. 5 is an operation explanatory diagram.

FIG. 6 is an operation explanatory diagram.

FIG. 7 is an operation explanatory diagram.

FIG. 8 is an operation explanatory diagram.

FIG. 9 is a plan view showing a floating device according to a second embodiment of the present invention.

FIG. 10 is a right side view in which a part of FIG. 9 is broken.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2 Cross joint 3 Mounting table 4A, 4B Clamp 5A-5D Floating mechanism 6 Hydraulic cylinder 7 Pin 8 Lower fixed bracket 9 Upper fixed bracket 10 Pin 11 Spherical joint 21 Base 22 Joint 23 Table 24A, 24B Floating mechanism 25 Hydraulic cylinder 26 Pin 27 Lower fixing bracket 28 Upper fixing bracket 29 Pin 30 Turntable 30a Gear 31A, 31B Clamp 32 Motor 33 Gear 41 Formwork Xa to Xc Floating shaft

Claims (6)

(57) [Claims] When concrete is poured into a formwork on a formwork fixed table, a floating axis for floating the formwork fixed table is arbitrarily set to float the formwork fixed table at a predetermined amplitude. A method for floating the fixed form table, comprising: returning the fixed form table to a horizontal state after the shaking. 2. The method according to claim 1, wherein the floating axis is an axis other than two orthogonal axes formed by two or four floating mechanisms. Form fixed table floating method. 3. When concrete is poured into a formwork on a formwork fixed table, a floating axis for floating the formwork fixed table is set to rotate sequentially, and the formwork fixed table is set to a predetermined position. A method of floating the form fixed table, wherein the form fixed table is returned to a horizontal state after being floated at an amplitude. 4. When concrete is poured into a formwork on a formwork fixed table, a floating axis for floating the formwork fixed table is arbitrarily set, and the floating axis is set in an axial direction orthogonal to the floating axis. A method of floating a fixed form table, wherein the fixed form table is tilted and floated at a predetermined amplitude while the fixed form table is inclined, and then the fixed form table is returned to a horizontal state. . 5. The method according to claim 1, wherein the amplitude is changed. 5. The method according to claim 1, wherein the amplitude is changed. 6. A table supported so as to be able to swing about a predetermined horizontal first axis, at least one swing mechanism for making the table swing about the first axis, and rotatably attached to the table. And a turntable driving mechanism for rotating or rotating the turntable by a predetermined angle with respect to the table.