JP2967332B2 - Inner surface finishing device for fume tube and method of manufacturing the same - 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 for finishing an inner surface of a fume tube by bringing a jig into sliding contact with a ready-mixed concrete feeding machine that moves back and forth and a fume tube in a mold by rotating a belt, and a method of manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, as a method for finishing the inner surface of a fume tube, the inner surface is finished with a jig such as a trowel with a handle or a spatula or a round bar, and the jig such as a brush or rubber spatula is used for floating water. However, all of these finishing operations are manual operations on the rotating fume tube.

[0003] In addition, there has been proposed an apparatus in which various jigs are attached around the longitudinal direction of the barrel and the inner surface of the fume tube is finished by a rotary drive mechanism (for example, Japanese Patent Publication No. 4-71).
No. 868).

[0004]

The internal finishing operation of the conventional fume tube has to be carried out by hand while the fume tube is rotating, so that it has a long experience, danger and fouling. Was.

There is also a problem that the latter mechanical work requires considerable equipment, and replacement of the jig due to wear is also expensive.

[0006] Therefore, the problem to be solved by the present invention is to set a ready-mixed concrete loading machine table which moves back and forth on a rail and a fume pipe inner surface finishing device so that the inner surface is made uniform, and the installation location, cost, etc. It is an object of the present invention to provide an internal surface finishing apparatus for a fume tube and a method for manufacturing the same, which are efficient and functional with less simplicity and do not require skill.

[0007]

In order to achieve the above object, an apparatus for finishing an inner surface of a fume pipe according to the present invention comprises a machine base having a hopper for feeding ready-mixed concrete which moves back and forth by driving a traveling motor. Insert the transfer rod for transferring the ready-mixed concrete into the pipe under the rotation of the rotary motor into the lower part of the hopper and insert the pipe into the formwork to form the fume pipe, and then rotate the finishing jig to rotate the inner surface of the fume pipe. And a finishing machine for smooth finishing.

A finishing machine having a finishing jig inserts a transfer rod, for example, a screw conveyor, extending horizontally from the lower part of the hopper toward the fume tube into a pipe extending horizontally from the side of the hopper. Further, a base end of the frame is fixed to a machine base so as to be covered with a cross-sectional frame from an upper portion of the pipe.

Also, holes are provided at predetermined intervals on the upper end surface and side surfaces of the frame so as to maintain the form of the frame horizontally, and a threaded rod attached to a pipe is passed through each hole of the frame to provide an external part. Is screwed.

[0010] A pulley is supported at the front end and the base end of the side face of the cross-sectional frame body having the base end attached to the machine base, and an endless belt with a jig is suspended around the pulley. Is rotated so as to mesh with the shafted gear of one pulley, and the jig is used to finish the inner surface of the rotating fume tube.

Then, the ready-mixed concrete put into the hopper of the machine base that moves back and forth is inserted into the pipe, and the rotating transfer rod is inserted into the form together with the pipe by the rotating force of the motor. After discharging the ready-mixed concrete and forming the fume tube by the rotational centrifugal force of the formwork, the belt with the jig is suspended on the pulleys that are pivotally supported on the front and rear sides of the cross-section frame body that covers the pipe, and the drive motor A jig is slid in contact with the inner surface of the rotating fume tube in the longitudinal direction along with the rotation of the belt to uniformly finish the surface of the fume tube.

[0012]

In the apparatus for finishing an inner surface of a fume pipe constructed as described above, a pipe is extended to a lower side of a ready-mixed concrete hopper provided in a machine base that moves back and forth on a shaft by driving a motor. The ready-mixed concrete is put into the inside, and a transfer rod, for example, a screw conveyor inserted into a pipe through a lower portion of the hopper is rotated by a rotary motor.

Then, the ready-mixed concrete extruded in the pipe forms a fume pipe having a uniform thickness due to the rotational centrifugal force of the form while being discharged from the end of the pipe into the form being rotated by the drive motor. I do.

In order to prevent drooping of the cross-sectional frame and maintain uniformity when manufacturing the fume tube, a hole is provided on the upper end surface of the cross-sectional frame and a vertically long hole is provided on a side surface thereof, and the pipe is planted in the pipe. The provided screw rod passes through the hole and the vertically long hole and is screwed with a screw. Therefore, since the frame always keeps horizontal,
The position of the pulley that is pivotally supported on the side of the frame is also optimal, and the jig attached to the belt is always in uniform sliding contact with the inner surface of the fume tube. Finishing while rotating the drive motor in the longitudinal direction of the fume tube. Is performed.

[0015]

Embodiments will be described with reference to the drawings.
1 to 5, a fume pipe inner surface finishing machine and a ready-mixed concrete loading machine are set, and screw jacks or hydraulic cylinders 2 for raising and lowering a hopper are provided at four corners of a ready-mixed concrete loading machine base 1. The ready-mixed concrete hopper 3 is evenly supported and adjusted up and down according to the weight of the ready-mixed concrete. Wheels 5 are provided on rails 4 laid on the lower left and right sides of the machine base 1, and the machine base 1 is moved back and forth by a traveling motor 6, and a transfer rod 8 such as a base end of a screw conveyor is mounted on a base plate 7. The transfer rod 8 is configured to rotate in contact with the rotation motor 9, and the base end of the transfer rod 8 is penetrated through the bottom of the ready-mixed concrete hopper 3 to extend in the direction of the mold 23.

The transfer rod 8 is inserted into the formwork 23 so that the ready-mixed concrete can be discharged from the discharge port end of the pipe 10 connected to the bottom outer surface on the delivery side of the ready-mixed concrete hopper 3. Is covered with a cross-sectional frame 11 whose base end is fixed to the machine base 1, a hole 12 is provided on an upper end surface of the frame 11, and a vertically long hole 13 is provided on a side surface thereof.
The screw rod 14 implanted at 0 is passed through the hole 12 and the vertically long hole 13 and screwed together with the screw 15 so that the sectional frame 11 is always kept horizontal.

Further, pulleys 16 and 16 are located near the distal end and the proximal end of the longitudinal side surface of the cross-sectional frame 11.
The endless belt 17 with the jig 19 is suspended around the pulleys 16 and 16, the endless belt 17 is rotated by the drive motor 18, and the finishing process in the fume tube 20 is performed by the jig 19. ing. As shown in FIGS. 4 and 5, the endless belt 17 may be attached to the jig 19 in a round or inverted trapezoidal shape. if you did this,
Alternatively, a case in which the spring 22 is built in the mounting portion of the jig 19 may be considered.

The inner surface finishing machine of the fume pipe has a form 23 outside.
On the inner surface, a metal aggregate is formed as a frame according to the shape thereof, and the machine base 1 is moved forward, and the ready-mixed concrete put into the ready-mixed concrete hopper 3 is rotated by the transfer rod 8 so that the inside of the mold 23 is formed from the pipe 10. And the wheels 25 attached to both ends of the rotating shaft 24 are brought into contact with both ends of the frame 23 below the two ends, and the rotating shaft 24 is rotated by the drive of the drive motor 26 to rotate the mold 23 to produce a rotational centrifugal force. The fume tube 20 is thus formed.

After the fume tube 20 is formed, a jig 19 such as a trowel, a spatula,
The same or different kind of brush or the like is attached to an endless belt 17, and the endless belt 17 is attached to pulleys 16, 16 located in the longitudinal direction of the fume tube 20, and a jig 19 is slid in contact with the drive motor 18. Fume tube 20
Is formed so as to finish the inner surface uniformly.

Next, a method of manufacturing the inner surface of a fume pipe will be described. The method comprises a set of a ready-mixed concrete inputting machine and an inner-surface finishing machine for fume pipes. Pipe 1 from the lower side of ready-mixed concrete hopper 3 in table 1
The transfer rod 8 is inserted into the pipe 10 through the lower part of the hopper 3 on the opposite side of the pipe 10 so as to be rotated by the rotation of the drive motor 18 and inserted into the pipe 10. Sectional frame 1 covering the upper surface of pipe 10
1 is fixed to the machine base 1, and a plurality of holes 12, 13 formed in the upper end surface and side surfaces of the frame body 11 at predetermined intervals.
A threaded rod 14 implanted in the pipe 10 is inserted into the pipe 10 and screwed in the outside to maintain the degree of parallelism with the inner surface of the fume tube 20. And the jig 19
The transfer of the ready-mixed concrete and the discharge groove are formed so that the endless belt 17 having the above-mentioned structure is suspended and rotated by the drive motor 18.

Then, the transport rod 8 is rotated by the rotary motor 9 to discharge the ready-mixed concrete into the form 23 sequentially from the mouth end of the pipe 10 and the fume tube 20 is rotated by the rotational centrifugal force of the drive motor 26. After the formation, the inner surface of the fume tube 20 is finished while the jig 19 of the endless belt 17 is rotated by the drive motor 18.

[0022]

Since the present invention is configured as described above, it has the following effects.

[0023] Since the ready-mixed concrete loading machine stand and the finishing machine are set, they can be provided at a low cost without unduly taking up an installation place, and labor costs can be reduced. There is an effect that you can set.

Conventionally, when a plurality of jigs are attached to the barrel and the inner surface of the fume tube is finished, surplus materials are discharged from the front and rear ends of the fume tube. A variety of jigs can be attached and the function of the jig can be performed in the direction of rotation of the belt, so surplus waste is discharged in one direction. Can be easily performed.

Also, there is an effect that the jig can be easily changed by replacing the belt.

After the transfer rod is inserted into a pipe attached to the lower side of the ready-mixed concrete hopper to discharge the ready-mixed concrete into the formwork, the above-described manufacturing method is employed as a method for finishing the inner surface of the fume tube. When the ready-mixed concrete is delivered into the hollow pipe, there is no air bubble in the ready-mixed concrete, and since the ready-mixed concrete is delivered inside the pipe, it does not leak out of the pipe.

Further, the jig functions in the advancing direction of the belt by the rotational force of the belt suspended on the pulley attached to the side of the frame while maintaining the parallelism with the fume tube by a screw mechanism for supporting the frame of the pipe. Therefore, there is an effect that the resistance can be minimized and a fume tube having a uniform thickness and a uniform inner surface finish can be easily manufactured.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of an inner surface finishing device for a fume tube.

FIG. 2 is an enlarged front view of FIG.

FIG. 3 is a partially cutaway perspective view showing an attached state of a pipe and an endless belt with a jig.

FIG. 4 is a partially cutaway enlarged perspective view of a belt.

FIG. 5 is a partially cutaway perspective view showing an embodiment in which a spring is incorporated in a belt.

[Description of Signs] 1 Ready-mixed concrete loading machine stand 3 Ready-mixed concrete hopper 8 Transfer rod 10 Pipe 11 Cross-sectional frame 13 Vertical long hole 14 Screw rod 15 Screw 16 Pulley 17 Endless belt 19 Jig 20 Fume tube 23 Formwork 26 Drive motor

Claims (6)

(57) [Claims] 1. A power mechanism for rotating a transfer rod 8 at a lower end portion of a ready-mixed concrete hopper 3 in a loading machine base provided with a ready-mixed concrete hopper in a machine base that moves back and forth on a rail by a traveling motor. Provided, the transfer rod 8
Is inserted into the pipe 10, and the base end is fixed to the ready-mixed concrete loading machine base 1 so as to cover the upper part of the pipe 10 with the frame 11 having a cross-sectional shape, and a support mechanism is provided between the frame 11 and the pipe 10. The endless belt 1 is provided with pulleys 16, 16 supported at predetermined intervals on one side surface of the frame 11, and a finishing jig 19 attached to the pulleys 16, 16.
7 is suspended and inserted into the fume tube 20, and the mold 23 is driven by the drive motor 26 to finish the jig 19 while sliding the jig 19 on the inner surface in the longitudinal direction of the fume tube 20 according to the rotation of the pulleys 16, 16. Fume tube inner surface finishing device 2. A sectional frame 1 covering a pipe 10.
2. The fume tube inner surface finishing apparatus according to claim 1, wherein a screw rod attached to the pipe at a predetermined interval on the upper surface of the pipe projects from the frame body and is detachably screwed and supported by a screw. 3. A cross-sectional frame 1 covering a pipe 10.
A longitudinal hole 13 is provided at a predetermined interval on one side surface, and a screw 14 attached to the pipe 10 is protruded into the longitudinal hole 13 so that a screw 15 is fixed so that the cross-sectional frame 11 is always kept horizontal. 3. The apparatus for finishing an inner surface of a fume pipe according to claim 1, wherein the apparatus is supported by: 4. The apparatus according to claim 1, wherein the jigs attached to the endless belt are of the same type. 5. The apparatus according to claim 1, wherein different types of jigs are intermittently attached to the endless belt. 6. A transfer rod (8) is inserted into a pipe (10) connected to a ready-mixed concrete hopper (3) attached to a ready-mixed concrete loading machine (1) which moves back and forth. The tip of the mold 2
After the fume pipe 20 is formed by discharging the ready-mixed concrete from the mouth end of the fume pipe 3 and covering the upper part of the pipe 10, a shaft is formed on the front and rear sides of the side face of the cross-sectional frame 11 formed for flattening. The endless belt 17 with the jig 19 is suspended around the supported pulley 16 and the jig 1 is rotated with the rotation of the endless belt 17.
2. The method according to claim 1, wherein the finishing is performed by sliding the inner surface of the fume tube in a longitudinal direction of the inner surface of the fume tube.