JP2767571B2 - Anchor plate vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner for an anchor plate used for forming a prestressed concrete secondary product such as a concrete pile, a pole and a fume tube.

[0002]

2. Description of the Related Art In the production of concrete piles, poles and fume tubes, an anchor plate is fixed to one end of a formwork and a PC steel rod inserted between opposed tension plates is tensioned to introduce prestress. Concrete is compacted in a state where the concrete is solidified, and the concrete is released after solidification, thereby applying a compressive force to the concrete product.

As shown in FIG. 5, an anchor plate 1 used for molding a concrete secondary product as described above is formed in a ring shape for closing an end of a formwork, and a PC steel is formed around the ring. The rod insertion holes 2 are provided on concentric circles at regular intervals and have a structure having a thickness so as to have sufficient strength.

The above-mentioned anchor plate 1 is repeatedly used a number of times. However, when forming a secondary concrete product, concrete enters into a gap formed between the inner diameter of the insertion hole and the outer diameter of the PC steel rod, and is removed. Concrete adheres to the inner peripheral surface of the insertion hole after the mold, and this fixed concrete hinders the insertion of the PC steel rod at the next use. Become.

Conventionally, a method of cleaning the insertion hole of the anchor plate has been manually performed by an operator using a tool such as a drill.

[0006]

However, since the anchor plate is a heavy metal object and has a structure in which a large number of insertion holes are provided around the anchor plate, a conventional method of manually removing the fixed concrete in the insertion holes by hand is used. In the method, there is a problem that the work is laborious and dangerous, and the work efficiency is extremely poor and the work cost is high.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an anchor plate cleaner capable of automatically cleaning the insertion hole of the anchor plate, thereby saving labor and improving efficiency.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a method for inserting an anchor plate for a concrete secondary product, in which a ring-shaped steel rod insertion hole is provided at a plurality of surrounding locations, is provided. A cleaner for removing adhered concrete in the holes, a pair of support rollers for supporting both sides of an outer peripheral lower portion of the anchor plate, a driving device for driving the support rollers to rotate the anchor plate, and An inner peripheral receiving roller that can move forward and backward and move up and down with respect to the inside of the supported upright anchor plate, and ascends at the forward position to support the upper inner periphery of the anchor plate;
An insertion hole detection sensor that detects the insertion hole of the rotating anchor plate supported on the support roller, stops the driving device by detecting the insertion hole, and intermittently stops the positioning of the anchor plate based on the insertion hole, A drill for moving forward and backward with respect to one of the insertion holes of the anchor plate which is supported on the support roller and positioned and stopped, and a rotary tool is advanced into the insertion hole to remove the adhering concrete by entering the insertion hole; In this configuration, the plate is intermittently rotated at intervals of the insertion holes to clean the inside of each insertion hole.

[0009]

When the anchor plate is supplied upright on the pair of support rollers, the inner peripheral receiving roller at the standby position rises at the forward position to support the upper inner peripheral portion of the anchor plate, thereby holding the anchor plate at three points. Supported and rotatable about an axis.

Next, when the driving machine is started to rotate the anchor plate by the rotation of the support roller, and the insertion hole detecting sensor detects the first insertion hole by this rotation, the driving machine is stopped to insert the anchor plate. Positioning is stopped based on the hole, and when the anchor plate stops, one insertion hole becomes coaxial with the rotary tool of the drill, and when the drill moves forward, the rotary tool enters the insertion hole and adheres to the inner periphery of the insertion hole Remove any stuck concrete.

When the drill retreats and the rotating tool comes out of the insertion hole, the driving machine starts to rotate the anchor plate,
When the sensor detects the next insertion hole, the rotation of the anchor plate is stopped, and the drill moves forward and backward to clean the next stopped insertion hole.

As described above, the anchor plate rotates intermittently at intervals of the insertion holes, and the cleaning of the insertion holes is performed by the rotation tool of the drill at each stop. Can be cleaned.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1 and FIG.
A pair of guide walls 12 and 13 are fixed on the upper surface in an upright state with an interval between the opposing surfaces so that the thickness direction of the anchor plate 1 can be accommodated.
A pair of groove-shaped support rollers 14 and 15 that support both sides of the lower portion of the outer periphery of the anchor plate 1 are rotatably mounted.

One support roller 14 is connected to an output shaft of a gear motor 16 with a brake installed on the base frame 11, and both support rollers 14, 15 are interlocked by a sprocket and a chain so as to rotate at a constant speed. The anchor plate 1 supported on the support rollers 14 and 15 so as to be upright is rotated by the activation of the motor 16.

At the position behind the rear guide wall 12 on the base frame 11, a horizontal lift table 17 is arranged so as to move up and down along guides 18 provided on the rear guide wall 12. Is moved up and down by an air cylinder 19 fixed to the base frame 11.

A movable table 20 is mounted on the elevating table 17 so as to move horizontally in the front-rear direction along the guides 21 and 21. The movable table 20 is moved forward and backward by an air cylinder 22 provided between the movable table 20 and the elevating table 17. At the same time, a horizontal shaft 24 is fixed to the upper part of a support stand 23 erected and fixed on the movable base 20 so as to face in the front-rear direction. An inner peripheral receiving roller 25 is rotatably mounted. This inner peripheral receiving roller 25
As shown in FIG. 2, by being located immediately above both support rollers 14 and 15 and supporting the upper position by the inner circumference of the upright anchor plate 1 supplied on the support rollers 14 and 15, The anchor plate 1 is rotatably supported at three points by the support rollers 14 and 15 and the inner peripheral receiving roller 25.

The movable table 26 is provided on the support table 23 with the guide 2.
The movable table 26 is mounted on an air cylinder 28 provided between the movable table 26 and the support table 23.
The cleaning tool 30 such as a taper reamer is attached to a drill 29 fixed to the movable base 26. The tool 30 is located immediately above the inner peripheral receiving roller 25 and faces in the front-rear direction. When the inner peripheral receiving roller 25 comes into contact with the upper inner peripheral portion of the anchor plate 1, the tool 30 is coaxial with the insertion hole 2. So that the inner circumference receiving roller 25
And the interval is set.

The guide walls 12 and 13 have a height corresponding to the center of the anchor plate 1 supplied on the support rollers 14 and 15, and have a semi-circular shape at the upper central portion of the guide walls 14 and 15. Is provided at a height corresponding to the center of the anchor plate 1, and the air cylinder 19 that raises and lowers the inner circumference receiving roller 25 is located inside the anchor plate 1. When the inner peripheral receiving roller 25 comes into contact with the upper periphery, the anchor plate 1
Is controlled by the pressure at which the elongation stops under the load due to the weight of.

At a position below the guide walls 12 and 13 and between the support rollers 14 and 15, a limit switch 32 for detecting the anchor plate 1 supplied on the support rollers 14 and 15 as shown in FIG. At the upper position, the insertion hole 2 of the anchor plate 1 is detected, and the rotation of the motor 16 is stopped.
The sensors 33, 33 for stopping the positioning on the basis of are provided. The sensors 33, 33 are formed using light emitting and receiving elements.

The insertion hole 2 of the anchor plate 1 is
As shown in FIG. 5, a plurality of plates located at positions sandwiching the axis of the plate 1 are provided in the circumferential direction so that an even number is provided as a whole, and the sensors 33 and 33 are located at the lowest position of the anchor plate 1. When the insertion hole is detected and the positioning of the plate 1 is stopped, the position of the uppermost insertion hole becomes accurate, and the positioning with the tool 30 can be performed accurately.

The vacuum cleaner of the present invention has the above-described configuration. Next, a cleaning method will be described.

Prior to cleaning, the vacuum cleaner retracts each air cylinder 19,22,28, as shown in FIGS.
The inner peripheral receiving roller 25 stands by at the position where it descends and retreats, and the tool 30 of the drill 29 also stands by at the position where it descends and retreats, and both are located behind the rear guide wall 12.

After the concrete secondary product is released from the mold, the anchor plate 1 is supplied from one side between the guide walls 12 and 13 and placed on both support rollers 14 and 15. The supply of the anchor plate 1 onto the support rollers 14 and 15 may be suspended by a crane or rolled in from a rack located on the side, and the anchor placed and supplied on the support rollers 14 and 18 may be used. The plate 1 is held so as not to fall down by ridges 12a, 13a provided on the upper surfaces of the opposing surfaces of the guide walls 12, 13.

When the anchor plate 1 is supplied onto the support rollers 14 and 15, the air cylinder 22 is extended by the detection signal of the limit switch 32 which detects this, and the inner peripheral receiving roller 25 and the drill 29 move forward. , Inner circumference receiving roller 2
When 5 stops at the forward position located in the anchor plate 1, the air cylinder 19 extends after a set time set by the timer, the inner peripheral receiving roller 25 and the drill 29 move up integrally, and the inner peripheral receiving roller 25 rises. The upper part of the inner periphery of the anchor plate 1 is supported at the position.

The expansion of the air cylinder 19 is stopped when the inner peripheral receiving roller 25 comes into contact with the upper part of the inner periphery of the anchor plate 1, whereby the anchor plate 1 is supported by the supporting rollers 14, 15 and the inner peripheral receiving roller 25. It is rotatably supported at three points.

When the extension of the air cylinder 19 is detected, the motor 1 is turned on after a time-up by a timer based on the detection signal.
6 is activated to rotate both support rollers 14 and 15 to impart rotation to the anchor plate 1.

At the same time, the sensors 33, 33 start detecting, and when the sensors 33, 33 detect the first insertion hole of the insertion hole 2 which is rotated by the rotation of the anchor plate 1, the detection signal indicates that the motor 16 Is stopped, and the positioning of the anchor plate 1 is stopped based on the lowest insertion hole.

When the anchor plate 1 stops, the air cylinder 28 extends and the drill 29 and the drill 29
As a result, the tool 30 which is rotationally driven moves forward, and as shown in FIG. 4, the tool 30 enters the insertion hole 2 located at the uppermost position, and cuts and removes the solidified concrete fixed on the inner periphery.

When the extension of the air cylinder 28 is detected by the built-in proximity switch, the air cylinder 28 contracts after the time set by the timer, and the drill 29 and the tool 30 move backward,
The tool 30 comes out of the insertion hole 2.

When the drill 29 returns to the retracted position, the motor 1
6 is activated to rotate the anchor plate 1 and the sensor 3
3 detects the next insertion hole, stops the motor 16 to stop the positioning of the anchor plate 1, and after the stop of the plate 1, the drill 29 advances and retreats, and the tool 30 moves the next insertion hole positioned at the highest position with the tool 30. To remove solid concrete.

As described above, every time the insertion holes 2 are cleaned by the tool 30, the anchor plate 1 is intermittently rotated at intervals of the insertion holes 2 to sequentially clean the insertion holes 2.

When the cleaning of all the insertion holes 2 is completed and the drill 29 returns to the retracted position, the air cylinder 19 contracts and the inner peripheral receiving roller 25 moves down, and then the air cylinder 22 contracts and moves to the retracted position. Returning, the support of the anchor plate 1 by the inner peripheral receiving roller 25 is released, and the entire process is completed by removing the anchor plate 1 from the support rollers 14 and 15.

[0034]

As described above, according to the present invention, the solidified concrete adhering to the inner periphery of the insertion hole of the anchor plate can be automatically removed only by supplying the anchor plate to the support roller, and the insertion hole can be removed. It is possible to save labor, improve efficiency and improve work safety of cleaning, and reduce cleaning costs.

[Brief description of the drawings]

FIG. 1 is a side view of a vacuum cleaner according to the present invention.

FIG. 2 is a rear view of the above.

FIG. 3 is a longitudinal sectional side view showing a limit switch and a sensor in the above.

FIG. 4 is a longitudinal sectional side view of a main part showing a cleaning state.

FIG. 5 is a perspective view of an anchor plate.

[Explanation of symbols]

 14, 15 Support roller 16 Gear motor with brake 17 Lifting table 19, 22, 28 Air cylinder 25 Inner circumference receiving roller 29 Drill 30 Tool 32 Limit switch 33 Sensor

Continuation of the front page (72) Inventor Tsuneo Saito 120 No. 120, 16 Murasakino, Kitakami-shi, Iwate Prefecture Inside the Kitakami Plant of Tohoku Pole Co., Ltd. (56) References JP-A-2-62204 (JP, A) (58) Field (Int.Cl. ⁶ , DB name) B28B 17/04 B28B 23/08

Claims (1)

(57) [Claims] 1. A vacuum cleaner for removing adhering concrete in said insertion hole of a concrete secondary product anchor plate having a ring-shaped steel bar insertion hole at a plurality of surrounding locations, said lower portion being an outer peripheral lower portion of said anchor plate. A pair of support rollers for supporting both sides of the support roller, a driving device for driving the support roller to rotate the anchor plate, and advancing / retreating and up / down movement with respect to the interior of the upright anchor plate supported on the support roller. The inner peripheral receiving roller which rises at the forward position and supports the upper inner peripheral portion of the anchor plate, and the insertion hole of the rotating anchor plate supported on the support roller is detected, and the driving device is detected by detecting the insertion hole. And an insertion hole detection sensor that intermittently stops the positioning of the anchor plate based on the insertion hole, and stops the positioning supported by the support roller. It consists of a drill that can move forward and backward with respect to one insertion hole of the anchor plate, and a drill that moves forward into the insertion hole and removes the adhering concrete by forward movement, and rotates the anchor plate intermittently at the interval of the insertion hole. Anchor plate cleaner that cleans each insertion hole.