JPH0739094B2 - Filling and filling device for ready-mixed concrete into formwork - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus used for manufacturing concrete piles used for foundations of structures and concrete poles used for electric poles. The present invention relates to an apparatus for pouring and filling fresh concrete into a long form frame in the longitudinal direction of the form when the frame is filled and filled with the fresh concrete.

[0002]

2. Description of the Related Art Generally, a mold for molding concrete piles and concrete poles is divided into two parts in the longitudinal direction, and is composed of an upper mold and a lower mold, and a lower mold with the upper mold removed. After setting the reinforced basket in the frame, put ready-mixed concrete in the lower mold. Conventionally, when pouring and filling ready-mixed concrete into the lower formwork of a long formwork, the lower formwork is installed on the production stand, and traveling trolleys having hoppers filled with ready-mixed concrete are placed on both sides of the lower formwork in the longitudinal direction. It runs on the rails laid all over, and the fresh concrete is dropped into the lower mold through the charging port at the bottom of the hopper to fill the lower mold.

[0003]

However, since the conventional hopper is simply formed in the shape of an inverted cone and is made to flow only by the weight of concrete itself, it is easy for the fresh concrete to adhere to the inner surface of the hopper. There is a problem in that it takes time and labor to clean the hopper. Moreover, even though the side wall of the hopper is formed in a tapered shape, it does not easily drop from the input port of the hopper, it takes time to insert it, and there is a problem that it does not fall to a predetermined position by a predetermined amount. is there. For this reason, there have been attempts to apply vibration by providing a vibration generator on the side wall of the hopper, but it has not been so effective. In addition, when the raw concrete to be added is low slump slushy raw concrete, only coarse aggregate such as crushed stone in the raw concrete is dropped first, and the material separates and uniform raw concrete cannot be input and filled. There is also.

When the lower formwork is filled with ready-mixed concrete, when the amount of the ready-mixed concrete to be charged is larger than the volume inside the lower formwork, it is projected above the lower formwork in a semicircular cross section. Although the upper formwork cannot be closed unless it is densely filled in, at present, there is a problem that it takes time and labor to manually fill the fresh concrete so that it has a semicircular cross section.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is that quick concrete does not adhere to the inside of the hopper, so that cleaning or the like does not require time and labor, and the hopper. There is a device for charging and filling fresh concrete into a formwork where the fresh concrete will smoothly drop from the input port of, and further to the formwork that can automatically level the upper surface of the ready-mixed concrete filled in the formwork. It is to provide a filling and filling device for ready-mixed concrete.

[0006]

In order to solve the problems of the above-mentioned conventional examples and to achieve the object of the present invention, in a device for charging and filling fresh concrete into a formwork of the present invention, a hopper device H is substantially horizontal. A substantially inverted conical rotating hopper 1 that rotates in a horizontal direction, and a rotating hopper that rotates along a side wall of the rotating hopper 1 and has a lower end thereof.
-1 and a screw-shaft 2 facing the charging opening 1a at the lower end of the -1 .

[0007] The hopper device H is provided with a hopper D for leveling and leveling rollers which uniformly disperse the ready-mixed concrete to be charged and filled in the mold K from the hopper device H and rotate in a direction substantially perpendicular to the axial direction of the mold K. It is also preferable that the device is provided below the device H.

[0008]

According to the present invention having the above construction, however, the rotary hopper 1 in which the hopper device H rotates substantially horizontally.
And the screw shaft 2 that rotates along the side wall of the rotary hopper 1, the raw concrete can be smoothly dropped from the input port of the rotary hopper 1, and the raw concrete can be placed in the rotary hopper 1. Can be prevented from adhering.

[0009] Further, the hopper device H is provided with a leveling machine D which is made up of leveling rollers which uniformly disperse the ready-mixed concrete to be charged into the frame K from the hopper device H and rotate in a direction substantially at right angles to the axis of the frame K. By providing the lower part of the apparatus H, the upper surface of the fresh concrete filled in the form K by the throw-in leveling machine D can be automatically leveled.

[0010]

Embodiments First, the embodiments shown in FIGS. 1 to 6 will be described. The charging and filling device S is mainly configured by mounting a hopper device H on a base B. The hopper device H is mounted on the base B through the weight sensors 13 such as load cells provided at the four corners of the base B, and the weight sensor 13 allows the weight of the hopper device H and the rotation of the hopper device H to be rotated. Hopper 1
The weight of the fresh concrete inside and the weight of the fresh concrete fed from the rotary hopper 1 can be measured. The rotary hopper 1 of the hopper device H is formed into a substantially inverted conical shape, and fresh concrete mixed by a mixer or the like is supplied to the inside from an opening on the upper surface. A ring gear-16 is provided on the outer periphery of the rotary hopper 1, and the rotation is transmitted from the electric motor 3 to the ring gear-16 via the speed reducer 9 and the transmission gear 12, so that the rotary hopper 1 is horizontally rotated. 28 is a ring pedestal, which is a receiving roller 15 provided on the outer periphery of the rotary hopper 1.
Also, the side roller 14 rolls along the ring pedestal 28 to guide the rotation of the rotary hopper 1. Reference numeral 30 is a torque limiter, which shuts off the electric power of the electric motor 3 when a large amount of fresh concrete is supplied to the rotary hopper 1 and an overload is applied. The screw shaft 2 is provided parallel to the side wall of the inverted conical rotary hopper 1 so as to slightly contact the side wall of the rotary hopper 1. The screw shaft 2 transmits the rotation from the geared motor 10 to the screw shaft 2 through the sprocket 5 and the transmission chain 4, and the screw shaft 2 is rotated. It can be rotated. In this hopper device H, when the fresh concrete is charged and filled into the mold K described later, the screw shaft 2 is rotated while rotating the rotary hopper 1, but the fresh concrete filled in the rotary hopper 1 is a combination of the above rotations. The concrete is agitated and kneaded in the rotary hopper 1, and by rotating the screw shaft 2, fresh concrete is sent out from the input port 1a of the rotary hopper 1 and dropped. A charging guide 23 is arranged below the charging port 1a of the rotary hopper 1, and an opening / closing gate 25 is provided at the lower end opening of the charging guide 23 so as to be openable and closable. The opening / closing gate 25 is rotated about the pin 25a as a fulcrum by the operation of the hydraulic or pneumatic cylinder 26 to open / close the lower end opening of the closing guide 23.

The base B is formed in a three-dimensional lattice shape using H-shaped steel and other shaped steel as a pillar and a lateral frame, and a traveling wheel 27 is provided on the lower lateral frame.
Is provided. Rotation is transmitted to the traveling wheel 27 from the geared motor 11 via the transmission chain 4 and the sprocket 5, and the traveling wheel 27 is rotated by the traveling rail R.
It is adapted to roll over and run, and the base B runs along the running rail R.

Below the opening / closing gate 25, a throw-in leveler D is arranged, and is constructed as follows. Two guide plates 24, which guide the ready-mixed concrete that is thrown in and dropped, are arranged so as to face each other.
The interval between the four is slightly smaller than the inner diameter of the mold K described later. The arm 22 extends outward from the guide plate 24, and the cylinder 2 is pin-connected to the arm 22.
It is suspended or supported by 6. Rollers 20 and 21 are rotatably mounted between the two guide plates 24 in a direction orthogonal to the longitudinal direction of the mold K, which will be described later. The roller 20 is provided on both sides of the roller 21, and a scratching claw 20a is provided on the outer periphery of the roller 20. The roller 21 is formed in the shape of a ball having a diameter that becomes thinner toward the center and thicker toward both ends, and the surface of the green concrete filled in the mold K is leveled in a semicircular cross section. The rotation of the rollers 20 and 21 is transmitted from the electric motor 31, and the rollers 20 and 21 rotate so that the rotation directions thereof are opposite to each other. Then, the ready-mixed concrete falls between the guide plates 24 and the rollers 2
The particles are dispersed by the rotation of 0 and 21 to be filled into a predetermined state (the gap between the rollers 20 and 21 gradually decreases from the central portion toward both sides, and fills so as to rise in a chevron shape in cross section. ), And the roller 21 is leveled in a semicircular cross section. This throw-in leveler D is adapted to come into contact with the opening of the mold K by the operation of the hydraulic or pneumatic cylinder 26, move upward away from it, and tilt in the longitudinal direction of the mold K. There is.

The form K is made of concrete pile or concrete.
It is for molding long molded products such as topoles.
For example, the upper frame K is formed in a long cylindrical shape.₂And lower mold
Frame K ₁Is divided into This form K is the upper form K₂Outside
Form K under₁Is the installation table 32 below the throw-in leveler D
Is set to. Lower formwork K₁On the end face of
Is provided with a disc-shaped end plate 33.

Further, the electric motors 3, 31 and the geared motors 10, 11 are electrically connected to an inverter for converting the frequency of the current to change the rotation speed of the motor and also electrically connected to the control device. Further, the solenoid valve for operating the cylinder 26, the torque limiter 30, and the weight sensor 13 are electrically connected to the control device, respectively.

Next, a method of charging and filling the concrete according to the present invention will be described with reference to a device for charging and filling fresh concrete into the mold configured as described above. A predetermined amount of green concrete is supplied from the mixer into the rotary hopper 1, and the rotary hopper 1 to which the green concrete is supplied is rotationally driven and the screw shaft 2 is rotationally driven to mix the green concrete. . The opening and closing gate 25 is opened to fresh concrete is allowed to fall, and at the same time turned filling device S is moved in the longitudinal direction of the lower mold K ₁ of the form K, lower mold K ₁
Is filled with fresh concrete from one end to the other end. When the charging and filling device S is caused to travel along the traveling rail R and the lower formwork K ₁ is filled with ready-mixed concrete, the amount of charge per length of the formwork K is measured by the weight sensor 13, and based on the measured data. The running speed of the charging and filling device S, the number of rotations of the rotary hopper 1, the screw shaft 2 and the opening / closing degree of the opening / closing gate 25 are automatically adjusted to produce a predetermined amount of raw material at a predetermined position in the longitudinal direction of the form K. It is automatically controlled so that concrete is added and filled. That is, the lower formwork K of the formwork K
_A predetermined amount of fresh concrete is uniformly filled in the longitudinal direction of ₁ . At this time, it is also possible to automatically control so that the charging and filling process is completed in a predetermined time. Rotary hopper 1
The ready-mixed concrete falling from the mold is guided by the guide plate 24 of the throw-in leveling machine D, thrown into the lower mold K ₁ of the form K, guided so as not to spill, and put into the lower mold K _1. . At this time, the particles are dispersed and filled by the rollers 20 and 21, and are evened in a semicircular cross section by the roller 21. The guide plate 2 prevents the fresh concrete from spilling when the fresh concrete is thrown into the lower mold K ₁ from the throw-in leveler D.
The height is set by the cylinder 26 so that the lower end of 4 is closest to the lower mold K ₁ . The running position of the automatic closing control device S with respect to the lower mold K ₁ is determined by the position sensor provided near the running wheels 27 of the base B and the running rail R.
The position mark provided in the vicinity detects.
Further, the distance traveled by the charging and filling device S can be measured by mounting a rotary encoder on the base B and contacting the traveling rail R to measure the traveling distance. Then, the above control can be performed. Based on this position detection, the throw-in leveler D can be moved up and down, and the end face plate 33 of the mold K can be automatically avoided. After filling the lower mold K ₁ with ready-mixed concrete, the lower mold K ₁ is covered with the upper mold K ₂ , the mold is assembled, set in a centrifugal molding apparatus, and centrifugally molded.

FIG. 6 shows another embodiment. In the case of this embodiment, the lower end of the base B of the charging and filling device S is installed so as not to move. The lower mold K ₁ of the mold K is set on the conveyor C, and the lower mold K of the mold K is set on the conveyor C.
₁ can be conveyed in the longitudinal direction of the form K.
The other configurations are the same as those in the above embodiment. Then, when the fresh concrete is dropped from the rotary hopper 1 through the guide plates 24 of the throw-in leveler D and the lower mold K ₁ is moved in the longitudinal direction, the inside of the lower mold K ₁ is the same as in the above embodiment. Then, fresh concrete is filled from one end side to the other end side. At this time, the lower mold K ₁ of the mold K moves instead of the moving of the charging and filling device S as in the above embodiment, so that the lower mold of the mold K is measured according to the measured value measured by the weight sensor-13. The speed at which the frame K ₁ moves changes. Further, in this case, the traveling distance of the lower mold K ₁ of the mold K can be measured by measuring the rotational speed of the drive wheels of the conveyor C with a rotary encoder.

[0017]

As described above, according to the present invention, as described above, the hopper device rotates substantially horizontally and has a substantially inverted cone shape, and the hopper rotates along the side wall and the lower end.
Since it consists of a screw shaft facing the inlet at the bottom of the hopper, by rotating the rotary hopper and the screw shaft, the raw concrete is mixed in the rotary hopper and the raw concrete adheres to the inner surface of the rotary hopper. It does not take time and labor to clean the rotating hopper after the work, and further, to rotate the screw shaft.
Mixing the ready-mixed concrete supplied into the rotating hopper
Of course, the rotation of the rotating hopper of the approximately conical shape
Due to this, even in the part away from the screw shaft
By rotating the cone-shaped rotary hopper, the raw materials inside move
Kneaded (that is, the rotating hopper has an inverted cone shape)
Therefore, the ready-mixed concrete in the rotating hopper is
Part near the top of the wall and near the bottom of the inner wall
With the part that moves, the distance moved by the rotation of the rotary hopper,
The peripheral speed is different and therefore the raw concrete in the rotary hopper is
The REIT can rotate the rotary hopper in each part in the vertical direction.
It will be kneaded because the moving distance is different.
). And, as mentioned above, the rotating hopper of the approximately conical shape
Rotation at a position away from the screw shaft.
The screw is moved and kneaded by the rotation of the rolling hopper.
-Sending to the shaft side and further kneading on the screw shaft
However, in this case,
Since the rotating hopper has a substantially inverted cone shape, the center goes downward
The distance from to becomes shorter and kneading becomes more kneading downward
For these reasons, kneading of ready-mixed concrete
Is done in a complex and effective manner.
The bottom end of the rotary hopper, whose bottom end is approximately an inverted cone,
As it faces the entrance, inside the rotary hopper as described above
In the kneading in the rotary hopper, and the screw shaft
Kneading and the inside of the rotating hopper with a roughly inverted cone shape
The distance from the center decreases as you move toward
The kneading effect that the more kneading is done by the
The raw concrete compounded by
Input that is quantitatively and continuously narrowed by the Woo axis
It can be supplied to the mouth and dropped smoothly.
In addition, it is possible to add the raw concrete in a uniform state so as to prevent the aggregate and the like from being separated.

According to the second aspect of the present invention, fresh concrete to be charged into the mold from the hopper device is uniformly dispersed, and the charging is made of a leveling roller which rotates in a direction substantially perpendicular to the axial direction of the mold. Since the leveling machine is installed below the hopper device, the fresh concrete falling from the hopper can be evenly distributed and charged by the leveling machine, and the upper surface can be automatically leveled to a predetermined state. Unlike the conventional method, it does not take time and labor to be leveled manually.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a front view of the above.

FIG. 3 is a side sectional view of the above.

FIG. 4 is a plan view of the above-described throw-in leveler.

FIG. 5 is an exploded schematic perspective view of the above mold.

FIG. 6 is a side sectional view of another embodiment of the above.

[Explanation of symbols]

 1 Rotating hopper 2 Screw shaft S Feeding and filling device B Base H Hopper device D Feeding leveler

Claims (2)

[Claims] 1. A substantially inverted cone in which a hopper device rotates substantially horizontally.
-Shaped rotary hopper, and a raw concrete input, which is configured by a rotary hopper and a screw shaft that rotates along an inner wall of the rotary hopper and has a lower end facing the input port at the lower end of the rotary hopper. Filling device. 2. A throwing-in leveling machine comprising a leveling roller, which uniformly disperses ready-mixed concrete to be thrown into and fills the formwork from the hopper device and which rotates in a direction substantially perpendicular to the axial direction of the formwork, is provided below the hopper device. An apparatus for charging and filling fresh concrete into a mold according to claim 1, wherein the apparatus is provided.