KR970009267B1 - Device for reforming scaffold pipes - Google Patents

Abstract

No content.

Description

Pipe surface straightening device

1 is a front view of the surface treatment calibration apparatus of the present invention.

2 is a plan view of the same.

3 is a longitudinal front view of an enlarged portion of the calibrator.

4 is a longitudinal cross-sectional view.

5 to 7 are explanatory diagrams of the above-mentioned eccentricity adjustment portions, respectively.

8 is an enlarged vertical front view showing the first embodiment of the surface treatment machine.

9 is a longitudinal cross-sectional view.

10 is a perspective view showing the main portion.

11 is a longitudinal front view showing the second embodiment;

12 and 13 are longitudinal cross-sectional views.

Fig. 14 is a longitudinal sectional view of the part of the pinch roller.

Figure 15 is a longitudinal cross-sectional front view.

* Explanation of symbols for main parts of the drawings

1,2,3,4: Pinch Roller 5: Calibrator

6: surface treatment machine 11: base stand

13,14: grooved roller 15: spring

50: outer rotor 58: contact member

The present invention relates to an apparatus for straightening surface treatment of pipes, for example, in which straight pipes used for building scaffolding frames are in a straight state and at the same time removing concrete attached to the outer circumferential surface.

The short pipe used for the assembly of the building scaffold frame is often burned because its handling is handled wildly, so it must be modified in a straight state for the next use. In addition, in the short pipe, concrete adheres to its outer surface, so the concrete must be removed upon reuse.

Conventionally, the straightening pipes are straight and the surface treatments for removing concrete attached to the outer circumferential surface have been independently performed. Therefore, the work efficiency is poor and a lot of expenses are required to reuse the short pipes.

Accordingly, an object of the present invention is to provide a pipe surface treatment straightening apparatus that can calibrate and surface treatment of short pipes continuously and automatically, which can significantly reduce the cost required for reuse of the short pipes.

In order to solve the above problems, the first invention is located between a plurality of pinch rollers and pinch rollers for feeding the pipes in the axial direction by inserting the pipes into upper and lower grooved rollers along a horizontal moving line for moving the pipes in the axial direction. The pinch roller is a fixed position groove roller for driving one side of the pair of grooved rollers into which the pipe is fitted, by a rotation drive source, and the other with a movable grooved roller that is retractable with respect to the pipe. It adopts a structure that is interlocked.

According to the second aspect of the present invention, a plurality of pinch rollers are placed side by side along a horizontal moving line for moving the pipe in an axial direction, and is disposed between the pinch rollers on the moving line. And a surface treatment machine for removing deposits attached to the outer circumferential surface of the moving pipe.

When the pipe is supplied from the receiving side to the moving line, the pinch rollers arranged along the moving line are sent in the axial direction while being inserted into the vertical grooved rollers of the stents in turn, and the pipe passes through the calibrator arranged between the stands. The front and rear pinch rollers are used to support the stand as the support point, and the bending in the radial direction is applied, and the bending is corrected.

In addition, the pipe passes through the surface treatment machine, thereby removing concrete and the like adhering to the outer circumferential surface.

Hereinafter, the present invention will be described based on the accompanying drawings.

FIG. 1 is a front view showing the overall structure of the surface treatment calibrating device, and FIG. 2 is a coarse side view, in which the surface treatment calibrating device moves the pipe A axially on a horizontally long base 11. The horizontal moving line processing correcting apparatus sets the moving line B on the horizontally long base stand 11, and first pinches in order from the receiving side of the moving line B to the base stand 11 in order from the receiving side. A calibrator 5 is installed between the roller stand 1 and the second pinch roller stand 2 and the second pinch roller stand 3, and the third pinch roller stand 3 and the fourth pinch roller The surface processor 6 is provided between the stands 4, and the pipe delivery mechanism 7 is arrange | positioned toward the pipe movement direction forward of the 4th pinch roller.

The first to fourth pinch roller stands 1, 2, 3, and 4 are basically the same, and specific structures are shown in FIG. 14 and FIG.

In the same figure, a pair of support walls 12 and 12 are fixed on the base stand 11 in an opposing state, and grooved rollers 13 and 14 are disposed between the support walls 12 and 12 in the up and down direction. The elasticity of the upper grooved roller 13 to the lowered position by the springs 15 and 15 is provided so that the pipe A is fitted to the upper and lower grooved rollers 13 and 14 and fed out in the axial direction.

The lower grooved roller 14 is fixed to the shaft 17 attached to the support walls 12 and 12 via the bearing 16, and is driven by a drive source through the sprocket 18 attached to the end of the shaft 17. Rotation in place is imparted.

The upper grooved roller 13 is attached to the shaft 20 penetrating freely through the long holes 19 and 19 in the vertical direction provided in the support walls 12 and 12.

The shaft 20 is supported by an arm 22 positioned between both supporting walls 12 and 12 and freely swinging about the pivot shaft 21 at the same time, and at the outside of the supporting walls 12 and 12. Both ends of the shaft 20 are loosely fitted to the vertical shafts 23 and 23 disposed on the side so that the shaft 20 abuts against the stoppers 24 and 24 fixed to allow the position adjustment to the vertical shafts 23 and 23. In this state, the lower limit position of the upper grooved roller 13 is set, and the upper grooved roller 13 is given a down elasticity by the springs 15 and 15 fitted outside the vertical axes 23 and 23.

In the upper and lower grooved rollers 13 and 13, gears 25 and 26 fixed to one end face are engaged with each other so that rotation of the lower grooved rollers 13 and 14 is transmitted to the upper grooved roller 13, and the upper and lower rollers 13 and 13 are rotated. 14), the pipe A is forced to move along the movement line B in the axial direction.

The upper and lower grooved rollers 13 and 14 are formed on an inclined surface having a large diameter toward both ends of both outer circumferential surfaces of the substantially semi-circular or V-shaped grooves 27 and 28 in which the pipe A is fitted on the circumferential surface. .

Although the single pipe for scaffolding is not shown, the head of the coupling pin with the joint protrudes on both sides of the outer circumferential surface of the scaffold, and thus passes between the upper and lower groove-shaped rollers 13 and 14 with the head positioned up and down. To allow the upper grooved roller (13) to escape upwards, and when the head passes horizontally, the head passes through the space defined by the two inclined surfaces of the upper and lower grooved rollers (13, 14). do.

As shown in FIG. 1, the first to fourth pinch roller stands 1, 2, 3, and 4 have a lower groove-type roller 14 having one motor 30 through the endless chain 29. It is supposed to be driven by).

The first and third pinch roller stands (2, 3), which are placed at the front and back with the straightener (5) inserted therein, are used for supporting the reaction force of the pipe (A) which is bent by the straightener (5). The reaction force at the time of bending is supported by the springs 15 and 15.

In the second pinch roller stand 2, a cylindrical bracket 31 protruding toward the straightener 5 is provided, and the tip of the pipe is supported by supporting the pipe with a sleeve 32 fixed in the bracket 31. It is guided to smoothly enter the calibrator (5).

Moreover, the example which arrange | positioned the guide roller 33 which guides a pipe between the 1st and 2nd pinch roller stands 1 and 2 is shown, You may give a surface treatment function to this roller 33. As shown in FIG.

3 to 7 show the specific structure of the calibrator 5, and integrally so that the rear frame 41 and the entire frame 42 mounted on the base stand 11 face each other back and forth with a plurality of bolts 43. As shown in FIG. The front and rear frames 41 and 42 are attached to the base stand 11 so as to be movable up and down by the bolt 44, and are supported by the spring 45 at the lowered position.

The inner cylinder 48 is supported to rotate in a coaxial arrangement with the movement line B through the bearing 47 in the support cylinder 46 fixed to all the frames 42, and between the front and rear frames 41 and 42. The circular plate 49 is fixed to the outer periphery of the rear end of the inner cylinder 48 which faced, and the outer rotating body 50 is fixed to this circular plate 49 by a bowl.

The outer rotating body 50 is located between the front and rear frames 41 and 41, and the base table 11 is formed by using the V groove 51 provided on the outer circumferential surface so that the shaft center 0 is coaxial with the moving line B. Forced rotation around the moving line (B) is given in communication with the forward and reverse rotation motor 52 and the belt 53 installed in the).

The outer rotator 50 is provided with a circular eccentric hole 54 which is eccentric with respect to the axial center of the movement line B, and in this eccentric hole 54 the circular inner rotator 55 holds the ball 59. Assembled so as to rotate freely through, the inner rotor 55 is assembled so as to rotate freely through the ball 59, the inner rotor 55 is eccentric with respect to the axial center (0 ₁ ) of the eccentric hole 54 A circular eccentric hole 56 is provided, and is assembled so that the cylindrical contact member 58 can freely rotate through the bearing 57 in the eccentric hole 56.

The inner diameter of the contact member 58 is formed to have a diameter slightly larger than the maximum diameter of the pipe A, and is arranged so that its axis center (0 ₂ ) is horizontally parallel to the moving line (B).

Therefore, the contact member 58 is eccentrically supported in two stages in the eccentric hole 54 of the outer rotating body 50 and the eccentric hole 56 of the inner rotating body 55, and the contact member with respect to the movement line B is carried out. The amount of eccentricity of 58 can be adjusted by the change of the relative position in the rotational direction of the inner and outer rotors 50 and 55.

That is, FIG. 6 and FIG. 7 show the relationship between the relative positions of the inner and outer rotating bodies 50 and 55 and the amount of eccentricity of the contact member 58.

6 shows a case where the eccentric amount of the contact member 58 is large, and the eccentric hole 54 of the outer rotating body 50 is eccentric by the distance L ₁ with respect to the moving line B, and thus the inner rotating body. The eccentric hole 56 of 55 is eccentrically by the distance L2 in the direction perpendicular to the line connecting the moving line B and the shaft center 0 ₁ .

In the above arrangement, the amount of eccentricity of the contact member 58 becomes the distance L ₃ from the moving line B to the shaft center 0 ₂ , and the inner and outer rotors 50 and 55 are integrally rotated. At this time, the eccentric motion by the distance L ₃ is given to the contact member 58.

Next, in the inner and outer rotating bodies 50 and 55 in the state of FIG. 6, only the outer rotating body 50 is rotated approximately 90 degrees in the counterclockwise direction of the same drawing, and the inner rotating body 55 and the contact member 58 ) Restricts displacement in the rotational direction, as shown in FIG. 7, the shaft center of the contact member 58 between the moving line B and the shaft center 0 ₁ of the eccentric hole 54. ₂ ) is moved, and as a result, the distance L ₃ between the shaft center 0 ₂ of the contact member 58 and the movement line B is shortened, so that the amount of eccentricity is reduced.

Thus, the example which performs automatic reversal of the motor 52 which drives the outer rotating body 50 and the inner rotating body 55 is shown, and pins 62 and 63 are attached to the outer rotating body 50. As shown in FIG. At the same time as protruding, the pins 62 and 63 and the corresponding arms 64 and 65 are protrudingly installed on the outer circumference of the inner rotor 55, thereby displacing the inner and outer rotors 50 and 55 in the rotational direction. It is limited to 90 °.

6 shows a state in which the eccentricity of the contact member 58 is large, the outer rotary body 50 rotates counterclockwise in the same plane, and the other pin 63 is in contact with the arm 65.

In this way, the amount of eccentricity of the contact member 58 can be changed by changing the rotational direction of the outer rotor 50. The adjustment mechanism 61 is not limited to the structure that is automatically performed by the forward and reverse rotation as shown in the figure, and fix both the inner and outer rotation bodies (50, 55) to the desired position by tightening the bolt, but the bolt and nut A used feed mechanism or the like may be employed.

In addition, when the amount of eccentricity is changed by reversing the outer rotating body 50, the brake device 71 provided on the rear frame 51 is provided with the inner rotating body so that a certain displacement occurs between the inner and outer rotating bodies 50 and 55. The end face of 55 is press-contacted to apply a braking force to the inner rotor 55.

As shown in FIG. 3 and FIG. 4, the brake device 71 protrudes a plurality of pins 72 to the rear frame 51, and has a cylindrical agent 73 located outside the contact member 58. As shown in FIG. A plurality of arms 74 are protruded around and support the arm 74 so as to be movable in the axial direction by the pin 72, so as to face the inner rotor 55 of the cylindrical body 73. The brake ring 75 is fixed to an end portion thereof, and a spring 76 for pressing the brake ring 75 against the inner rotating body 55 through the arm 74 and the cylindrical body 73 to the pin 72. It is assembled and rolled up to give a constant load to the inner rotor 55.

And, as shown in FIG. 3, the front end of the inner cylinder 48 supported by the entire frame 42 is arranged to rotate the sleeve 78 coaxially with the moving line B through the cylindrical bracket 77. The pipe A is smoothly moved toward the straightener 5. When the pipe A moving along the movement line B passes through the contact member 58, the calibrator 5 is pressed by the amount of eccentricity in the inner circumference of the contact member 58, so that the pressed position is the outer rotation. It moves in the circumferential direction by rotation of the whole 50. As shown in FIG.

For this reason, the pipe A is bent by the contact member 58 in the middle of the portion supported by the front and rear pinch roller stands 2 and 3 so as to be coaxial to the moving line B, whereby the correction of the bending is performed. Will be done.

When the pipe A is bent by the contact member 58, the reaction force support for bending in the vertical direction is equalized by the upward movement of the straightener 5. That is, when the pipe A is pressed upward with the contact member 58 and bent, the upper grooved roller 13 of the second and third pinch roller stands 2 and 3 is elastically supported by the spring 15. On the contrary, when the pipe A is bent downward, it is fixedly supported by the lower grooved roller 14 so that there is a difference in the reaction force in the vertical direction.

On the contrary, when the pipe A is bent upward, the straightener 5 is able to escape upward against the spring 15, and by adjusting the reaction force support conditions in the up and down direction, the correction accuracy of the pipe A is increased. It is to improve.

Next, FIGS. 8 to 10 show the first embodiment of the surface treatment machine 6, and FIGS. 11 to 13 show the second embodiment.

The surface processor 6 of the first embodiment combines three ring-shaped disks 81, 82, and 83 with a plurality of bolts 84 so as to be coaxial at equal intervals, and the disks 81 and 83 at both ends. The cylindrical body (85,86) fixed to the third pinch roller stand (3) and the fourth pinch roller stand (4) to support the rotation freely to be arranged coaxially with the movement line (B), each A plurality of rotary wheels 87 which press-drive the outer circumferential surface of the pipe A is disposed between the discs 81, 82, 83, and fixed to the cylindrical body 86 at the tip end thereof so that the poly 88 and the base stand ( 11) The motor 89 provided above is interlocked, and the rotation wheel 87 is provided with a revolution along the outer periphery of the pipe A. As shown in FIG.

The attachment structures of the rotary wheels 87 disposed between the respective discs 81, 82, and 82 and 83 are all the same, and FIG. 9 and FIG. 10 show the attachment structures between the discs 82,83.

In the same figure, three axes 90 are circumferentially arranged in the outer circumferential portion between the disks 82 and 83 in the circumferential direction, and the arms are formed in two galle shapes on each shaft 90 ( 91 is pivotally fixed so that the swing is free, the rotation wheel 87 is attached to the shaft 92 freely for rotation in the middle of each arm 91, and the arm is positioned at an inner circumferential position between the disks 82 and 83. The stopper rod 93 with the tip of 91 is installed and the arm 91 is attached to the rod 95 attached to the stopper rod 93 so as to penetrate the cutout portion 94 installed at the tip of the arm 91. The spring 96 is pressed against the stopper rod 93 at all times.

Each of the rotary wheels 87 has a circular arrangement around the movement line B, and rotates while pressing the elastically of the spring 96 around the pipe A traveling along the movement line B, The concrete adhering to the outer surface of the pipe A is removed by pressure destruction.

The outer circumferential surface of each of the rotary wheels 87 is rough, and the rear end thereof is a conical surface so that the tip of the pipe A smoothly enters between the rotary wheels 87 group.

Next, the surface treatment machine 6 according to the second embodiment shown in FIGS. 11 to 33 shows a pipe (A) of four object attachment plates 103 between two ring-shaped disks 101 and 102. The cylindrical bodies 104 and 105 fixed at equal intervals so as to be arranged in a tangential direction with respect to the two discs 101 and 102 and are moved to the second and fourth pinch roller stands 3 and 4 to the moving line B. Rotation is freely supported so as to be in a coaxial state, and the elastic plate 106 is fixed to each attachment plate 103 by the pressing plate 107 and the bolt 108 to fix the pulley 109 fixed to the disc 102. I work with a motor.

The inner end side of each elastic plate 106 is press-contacted to the outer circumferential surface of the pipe A traveling along the moving line B in a bent state, and the outer surface of the pipe A is rocked by rotation to remove concrete.

A wire 110, a steel wire, or the like is embedded in the rubber plate of each elastic plate 106, and the inner end line is an inclined state to be collected toward the moving direction forward of the pipe A and the pipe A ), The tip is smoothly entering the elastic plate group.

As shown in FIG. 1, the pipe delivery mechanism 7 supplies the pipe A along the movement line B from the fourth pinch roller stand 1 side, and the first to fourth The pipe A, which is forcibly fed in the axial direction by the pinch roller stands 1, 2, 3, and 4, is bent by passing through the straightener 5, and attached to the outer circumferential surface by passing through the surface treatment machine 6. Concrete is removed.

In the straightener 5, the outer rotating body 50 is forcibly driven by the start of the motor 52, and the contact member 58 performs an eccentric movement, and the second and third pinch rollers of the pipe A are rotated. Forced bending in the entire radial direction is given to the portions located on the stands 2 and 3, thereby correcting the bending occurring in the pipe A and correcting it in a straight state.

In addition, the surface treatment machine 6 pressurizes the outer peripheral surface of the pipe A to peel off the adhered concrete.

As described above, according to the present invention, a plurality of pinch rollers, which feed the pipe in the axial direction, are composed of an in-position groove roller and a movable groove roller, and at the same time, it provides elasticity to press the pipe to the movable groove roller. Formed in conjunction with a pair of gears, and a pipe straightener is arranged between the pinch rollers, the pipe can be inserted in a pair of grooved rollers to be reliably transferred in the axial direction, and the pipe can be calibrated without problems.

In addition, since a straightener is arranged between the stands that pinch the pipes in the axial direction, and a surface treatment device is disposed during the movement of the pipe, the bending of the pipe and the removal of deposits can be continuously performed. And the efficiency of surface treatment work can be improved, and the work cost can be reduced.

Claims (2)

According to the horizontal moving line for moving the pipe in the axial direction, a plurality of pinch rollers and the pinch rollers are arranged between the pinch roller and the pinch roller to feed the pipe into the upper and lower grooved rollers in the axial direction. One position grooved roller which drives one side of a pair of grooved rollers to be driven by a rotary drive source, and the other side is a movable grooved roller which can move back and forth with the pipe, and gives elasticity to press the pipe by spring to the movable grooved roller. Surface treatment correction device for a pipe, characterized in that the grooved roller is configured by interlocking with each other gears. A plurality of pinch rollers are placed side by side along the horizontal movement line for moving the pipe in the axial direction, and the pinch rollers for feeding the pipe in the axial direction are arranged side by side. A surface treatment calibration apparatus for a pipe, characterized in that the surface treatment device for removing the adherend attached to the outer peripheral surface of the pipe.

Images