KR101462191B1 - Pipe bending machine - Google Patents

Abstract

The present invention relates to a pipe bending machine, in which a rotor is provided in a molding part installed on a top surface of a working table, a guide is slidably coupled to the rotor, a first rotation member is coupled to a rotation protrusion of the rotor, a second rotation member is installed in a rotation guide of the first rotation member, a motor is installed at a lateral side of the rotation guide, and the angles of the first and second rotation members are adjusted by the rotation protrusion and the motor, so that the angle of molding rollers of the second rotation member through which a pipe passes. Accordingly, the molding rollers are changed at various angles so that the pipe can ben bent in various shapes. According to the present invention, the angles of the molding rollers are freely adjusted by the first and second rotation members, so that the pipe can be bent in various shapes. The forming rollers are adjusted at various angles, so that the pipe having a complex shape can be easily formed. A single pipe can be bent at various angles in a work, so that the interference between the bent parts of the pipe does not occur, and the bending work is performed using a single device, thereby minimizing devices, improving a working efficiency, and saving labor cost.

Description

Pipe bending machine

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe bending machine, and more particularly, to a pipe bending machine for bending a pipe at various angles by adjusting the rotation angle of a first rotating body and a second rotating body.

In general, a pipe bending machine is a device used to bend a pipe at a desired angle.

The pipe bending machine disclosed in Patent Document 1 includes a supply portion 2 formed to supply a pipe 1 at a speed corresponding to a bending operation and a pipe 2 supported by a pipe 1 supplied from the supply portion 2, A bending portion 7 for bending while rotating, and a driving portion 15 for driving the bending portion 7. [

When the pipe 1 is fed to the feeding section 2 by using the cylinder 3, the pipe 1 is fed to the banding section 7 side by the feeding roller 6 in a state of being guided by the fixed section 4 .

One end of the pipe 1 is gripped by the clamp dies 9 and 10 of the banding die 8 and the press die 13 and the drive motor 16 is operated in this state, The clamp dies 9 and 10 are rotated 180 degrees so that the press die 13 is rotated 90 degrees by the press die cylinder 14 to bend the pipe 1. [

However, the pipe bending machine of Patent Document 1 has the following problems.

First, the clamping dies 9, 10 and the press die 13 are rotated in only one direction to limit the bending shape of the pipe 1, and the pipe 1 is bent in only one direction to produce a complex shape There is no problem.

Secondly, when bending the pipe 1 into a complicated shape, it is necessary to provide a plurality of banding machines, and the pipes 1 are sequentially bent by the plurality of banding machines, And there is a problem that the number of workers increases due to the addition of personnel to each equipment.

Thirdly, when the pipe 1 is bent through the plurality of banding devices, the pipe 1 is bent in different directions and interference phenomenon occurs, which makes it difficult to bend the pipe 1 in various directions.

KR 10-0672007 B1

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a rotor unit having a rotor unit in a forming unit provided on an upper surface of a work bench, a guide slidably coupled to the rotor unit, And a motor is provided on the side of the rotation guide. By adjusting the angle of each of the first and second rotors with the rotation projecting portion and the motor, The forming rollers are bent at various angles so as to bend the pipe into various shapes by adjusting the angle of the forming rollers of the second rotating body through which the pipe passes.

It is another object of the present invention to provide a pipe bending machine in which a power line of a motor is prevented from being twisted during a pipe bending operation by forming a socket portion in which a power line of a motor is inserted into a front surface of a first rotary body.

Yet another object of the present invention is to provide a pipe bending machine in which a guide is pushed by an elastic spring and held in a state of being close to a second rotating body by providing an elastic spring between a locking projection of the guide and the first rotating body.

In order to accomplish the object of the present invention, the pipe bending machine according to the present invention comprises a work table having a guide roller for guiding a pipe feed on a top surface thereof, a conveying part installed on an upper surface of the work table for conveying the pipe, And a shaping portion for shaping the pipe, wherein the shaping portion includes a rotor tile fixedly installed on the upper surface of the worktable and having a rotation protrusion formed on a front surface thereof; A guide having a hollow shape with both ends open and slidably coupled to the front surface of the rotor to guide movement of the pipe; A first rotation body coupled to the rotation protrusion and having a rotation guide protruding from the front, the rotation body being rotatably operated by the rotation protrusion about the guide; A second rotating body installed on one surface of the rotation guide and rotated in a direction perpendicular to a rotating direction of the first rotating body to form a pipe; And a motor installed on the other surface of the rotation guide to rotationally operate the second rotating body.

In the pipe bending machine according to the present invention, the second rotating body of the forming unit may include a pair of rotating bodies connected to the rotating body and rotatably operated, And a pair of forming rollers.

In the pipe bending machine according to the present invention, the shaping portion may have a socket portion on the front surface of the first rotating body, through which a power line connected to the motor is inserted.

In the pipe bending machine according to the present invention, the forming unit may further include a rail plate between the first rotating body and the rotor unit for receiving electric wires connected to the socket unit to prevent twisting of electric wires.

In the pipe bending machine according to the present invention, the guide of the shaping portion is provided with a catching pawl on its one end outer surface, and further includes an elastic spring between the pawl portion and the first rotating body.

In the pipe bending machine according to the present invention, the forming unit may further include a heating unit for heating a pipe guided by the guide on the other side of the rotor.

According to the present invention, the forming roller can be freely adjusted by the first and second rotating bodies to bend the pipe into various shapes, and the forming roller can be adjusted at various angles to easily produce a complicated shape pipe, It works by bending a single pipe at various angles so that no interference occurs between the bent parts of the pipe. Banding works with a single device, minimizing equipment, improving work efficiency, There are advantages.

1 shows a pipe bending machine according to the present invention.
FIG. 2 is an exploded perspective view showing a molding part of a pipe bending machine according to the present invention. FIG.
3 is a plan view showing a state where a pipe is fed to a pipe bending machine according to the present invention.
4A to 4D are views showing a state of bending a pipe with a pipe bending machine according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3, a pipe bending machine according to the present invention includes a work table 100 having a guide roller 101 for guiding the conveyance of a pipe P to an upper surface thereof, a pipe 100 installed on the upper surface of the work table 100, And a forming unit 300 disposed in front of the transferring unit 200 and forming a pipe P. The forming unit 300 is formed of a metal plate,

The work table 100 is protruded at a predetermined height from the ground.

The guide roller 101 of the work table 100 rotates itself to support the outer surface of the pipe P conveyed by the conveyance unit 200.

Preferably, the guide roller 101 is recessed in its outer surface so as to surround the outer surface of the pipe P.

The guide rollers 101 are provided on the upper surface of the work table 100 along the longitudinal direction.

The work table 100 forms guide rails 102 along the longitudinal direction on the upper surface.

The guide rail 102 guides the sliding plate 201 of the conveyance unit 200 to be moved.

The transfer unit 200 moves the pipe P to the forming unit 300.

The conveyance unit 200 includes a sliding plate 201 coupled to the guide rail 102 to be slid and a fixing chuck 202 rotatably installed on the sliding plate 201 to fix the pipe P .

The sliding plate 201 is slidably moved along the guide rail to move the fixing chuck holding the pipe.

The fixing chuck 202 fixes the pipe P by receiving the outer surface of the pipe P and is moved by the sliding plate 201 to guide the pipe P to the forming unit 300.

The fixed chuck 202 is rotated to rotate the pipe P.

For example, the fixing chuck 202 preferably has a chuck structure used in a machine tool or the like.

The forming unit 300 includes a rotor unit 310, a guide 320, a first rotating body 330, a second rotating body 340, and a motor 350.

The rotor unit 310 is fixed on the upper surface of the work table 100 and has a rotation protrusion 311 formed on the front surface thereof.

The rotary protrusion 311 receives the power of a motor (not shown) provided therein and is rotationally operated.

The center portion of the rotor unit 310 is formed to penetrate the guide 320 so as to be inserted and coupled.

The guide 320 has a hollow shape with open ends at both ends, and is slidably engaged with the front surface of the rotor unit 310 to guide the movement of the pipe P.

The guide 320 guides the movement of the pipe P by allowing the pipe P to be inserted therein.

The guide 320 is slidably moved by the second rotating body 340 to be rotated.

One end of the guide 320 is tapered so as to be pressed by the second rotating body 340 to be rotated.

The guide 320 is formed with a locking protrusion 321 on its outer surface and an elastic spring 322 is provided between the locking protrusion 321 and the first rotating body 330.

One end of the elastic spring 322 is caught by the stopper protrusion 321 of the guide 320 and the other end is closely attached to the first rotating body 330.

The elastic spring 322 is pushed by the sliding guide 320 to be compressed and restored to its original state, and the guide 320 is returned to the original position by pushing the guide 320.

The first rotating body 330 is coupled to the rotation protrusion 311 and a rotation guide 331 protrudes from the front surface of the first rotation body 311. The rotation protrusion 311 rotatably supports the guide 320 do.

The first rotating body 330 is rotated by the rotating protrusion 311 to rotate the second rotating body 340.

The first rotating body 330 is rotated 360 degrees about the guide 320.

The first rotating body 330 supports one end of the elastic spring 322 to be compressed.

A socket portion 332 through which a power line PL connected to the motor 350 is inserted is formed on the front surface of the first rotating body 330.

The socket unit 332 is connected to an external power source and supplies power to the motor 350 through a power line PL.

The forming unit 300 includes a rail plate 310 that receives a wire L connected to the socket unit 332 between the first rotating body 330 and the rotor unit 310 to prevent twisting of the wire L 333 are further provided.

The rail plate 333 is formed with a plurality of rail grooves 333a into which electric wires L connected to the socket portions 332 are inserted.

The second rotating body 340 is installed on one surface of the rotation guide 320 and is rotated in a direction perpendicular to the rotating direction of the first rotating body 330 to bend the pipe P.

The second rotating body 340 of the forming unit 300 includes a pair of rotating bodies 341 connected to the motor 350 to rotate and a pair of rotating bodies 341 rotatably mounted on the rotating body 341, And a pair of shaping rollers 342 for shaping the pipe P.

The rotating body 341 is rotated at an angle determined by the motor 350 to adjust the angle of the forming roller 342.

The second rotating body 340 rotates by the motor while passing the pipe P between the pair of forming rollers 342 to adjust the forming roller angle.

The second rotating body bends the pipe at an angle corresponding to the forming roller angle.

The outer surface of the forming roller 342 is recessed to surround the outer surface of the pipe P.

The motor 350 is installed on a side surface of the rotation guide 331 to rotate the second rotating body 340.

The motor 350 receives power from a power supply line PL inserted in the socket portion 332 and is rotationally operated.

A heating unit 360 for heating a pipe P guided by the guide 320 is installed on the other side of the rotor unit 310 of the forming unit 300.

The heating unit 360 heats the outer surface of the pipe P guided by the guide 320 to make the pipe P flexible.

The heating unit 360 is preferably formed in a ring shape to transmit heat to the pipe P while passing the pipe P. [

The pipe bending machine according to the present invention configured as above operates as follows.

3, a pipe P having a predetermined length is fixed to the conveyance unit 200 and the conveyance unit 200 is moved so that the end of the pipe P is positioned on the guide roller 101 .

The pipe P is pushed into the gap between the pair of guide rollers 101 so that the pipe P is pushed in the rotating direction of the guide roller 101 Is entered.

The fixed chuck 202 of the transfer unit 200 fixes the outer surface of the pipe P and fixes the outer surface of the pipe P in such a state that the moving end of the pipe P is moved forward by the sliding plate 201, 300).

At this time, the sliding plate 201 is moved along the guide rail 102 of the work table 100 to move the fixing chuck 202 forward and backward. The fixing chuck 202 is rotated to move the pipe P ).

Then, the pipe P passes through the heating part 360 having a ring shape, and its outer surface is heated to be in a flexible state, and is guided to the guide 320 in this state.

4A to 4D, the pipe P guided by the guide 320 and conveyed to the second rotating body 340 passes through the shaping roller 342, and at the same time, The rotation protrusion 311 of the motor 100 and the motor 350 are driven to rotate the first rotating body 330 and the second rotating body 340 respectively.

Here, the power line PL of the motor 350 is inserted into the socket 332 of the first rotating body 330, and power is supplied from the socket 332 to the motor 350).

A plurality of electric wires L connected to the socket portion 332 are inserted into the rail grooves 333a of the rail plate 333.

The power line PL of the motor 350 is integrally rotated along the socket portion 332 by the rotation operation of the first rotating body 330 and the power line PL connected to the socket portion 332 L is rotated along the rail groove 333a to prevent the power line PL of the motor 350 and the electric wire L connected to the socket portion 332 from being twisted.

Then, the first rotating body 330 is rotated to adjust the angle of the second rotating body 340, and the second rotating body 340 is rotated to deform the angle of the forming roller 342, The pipe P is bent at an angle corresponding to the forming roller 342 while passing between the forming rollers 342.

The forming roller 342 is recessed to surround the outer surface of the pipe P so that the outer surface of the pipe P is prevented from being pressed and deformed by the forming roller 342.

The angles of the first and second rotors 330 and 340 are repeated several times by the rotation protrusion 311 and the motor 350 while the pipe P passes the forming roller 342. [ .

Then, the pipe P is rotated by the fixed chuck 202 to change the bending direction.

Meanwhile, when the second rotating body 340 is rotated by the motor 350, one side of the guide 320 is pushed by the second rotating body 340 and is slid rearward.

At this time, the elastic spring 322 is restored to its original state by the second rotating body 340 rotated to the original position, and the locking protrusion 321 of the guide 320 is pushed forward, So as to be close to the two rotatable members 340.

The second rotating body 340 includes the rotating body 341 and the shaping roller 342. The second rotating body 340 rotatably supports the rotation guide 331 of the first rotating body 330 And the pipe P is bent.

The second rotating body 340 having a different structure to the rotation guide 331 of the first rotating body 330 may be replaced or disassembled according to the user's intention. So that the pipe P can be bent.

The structure in which the pipe P is bent at various angles by adjusting the angles of the first and second rotors 330 and 340 as described above is formed by the first and second rotators 330 and 340, The pipe P can be bent in various shapes and the shaping roller 342 can be adjusted at various angles to easily produce a pipe P having a complicated shape and a single pipe P are bent at various angles so that no interference occurs between the bent portions of the pipe P and the banding operation is performed with a single device to minimize the equipment.

The pipe bending machine according to the present invention described above is not limited to the above-described embodiment, and any person skilled in the art may apply the present invention without departing from the gist of the present invention, There is a technical spirit to the extent that various changes can be made.

100: work table 101: guide roller
102: guide rail 200:
201: sliding plate 202: fixed chuck
300: forming part 310: rotor
311: rotation protrusion 320: guide
321: a stalk portion 322: an elastic spring
330: first full body 331: rotation guide
332: socket portion 333: rail plate
333a: rail groove 340: second whole
341: rotating body 342: forming roller
350: motor 360: heating section
L: wire P: pipe
PL: Power line

Claims (7)

A work table 100 on which a guide roller 101 for guiding the conveyance of the pipe P is formed on an upper surface of the work table 100, a conveyance part 200 provided on the upper surface of the work table 100 for conveying the pipe P, A pipe bending machine comprising a forming part (300) for forming a pipe (P)
The forming unit 300 includes:
A rotor unit 310 fixed on the upper surface of the work table 100 and having a rotation protrusion 311 formed on the front surface thereof;
A guide 320 slidably coupled to a front surface of the rotor unit 310 to guide movement of the pipe P;
A first rotating body 330 coupled to the rotation protrusion 311 and having a rotation guide 331 protruded from the front and rotated by the rotation protrusion 311 about the guide 320;
A second rotating body 340 installed on one surface of the rotation guide 320 and rotated in a direction perpendicular to the rotating direction of the first rotating body 330 to form the pipe P; And
A motor 350 installed on the other surface of the rotation guide 331 to rotate the second rotating body 340;
Wherein the pipe bending machine comprises: The method according to claim 1,
The second rotating body (340) of the forming part (300)
A pair of rotation rollers 341 connected to the motor 350 for rotation and a pair of shaping rollers 343 disposed above and below the rotation body 341 and facing each other to form the pipe P 342). ≪ / RTI > The method according to claim 1,
The forming unit 300
Wherein a socket portion (332) for inserting a power line (PL) connected to the motor (350) is formed on an entire surface of the first rotating body (330). The method of claim 3,
The forming unit 300
A rail plate 333 is provided between the first rotating body 330 and the rotor unit 310 to receive the electric wire L connected to the socket unit 332 to prevent twisting of the electric wire L Wherein the pipe bending machine is a pipe bending machine. The method according to claim 1,
The guide 320 of the forming part 300 may be formed,
Characterized in that a hooking protrusion (321) is formed on the outer surface and an elastic spring (322) is further provided between the hooking protrusion (321) and the first rotating body (330). The method according to claim 1,
The forming unit 300 includes:
Further comprising a heating unit (360) for heating the pipe (P) guided to the guide (320) on the other side of the rotor unit (310). The method according to claim 1,
The work table 100 has guide rails 102 formed on its upper surface along the longitudinal direction,
The conveyance unit 200 includes:
A sliding plate 201 slidingly coupled to the guide rail 102 and a fixing chuck 202 rotatably installed on the sliding plate 201 to fix the pipe P. [ Pipe bending machine.

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