KR20140148008A

KR20140148008A - Bending Apparatus of Pipe

Info

Publication number: KR20140148008A
Application number: KR1020130071331A
Authority: KR
Inventors: 장병출
Original assignee: 현대중공업 주식회사
Priority date: 2013-06-21
Filing date: 2013-06-21
Publication date: 2014-12-31

Abstract

The present invention relates to a bending apparatus for facilitating bending of a pipe such as a stainless pipe.
The present invention is characterized in that a drum member (20) for winding has a spiral groove (21) formed along the outer peripheral surface width direction so that a pipe (P) to be bent is wound; And a bending member (30) coupled to the drum member (20) for bending the pipe (P) while rotating in the circumferential direction of the drum member (20)
The bending member 30 is connected to the shaft 31 through a connecting piece 32 and a shaft 31 inserted into the center of the drum member 20 while rotating along the outer circumferential surface of the drum member 20, P to which the pipe P is inserted, and a turning handle 34 formed on one surface of the coupling hole 33. The pipe P is inserted into the coupling hole 33,

Description

[0001] DESCRIPTION [0002] Bending Apparatus of Pipe [

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe bending apparatus, and more particularly, to a pipe bending apparatus such as stainless steel which is difficult to bend by hand.

Generally, various kinds of gauges (level gauges, pressure gauges, etc.) are installed in various pipelines installed on a ship, and portions of the gauges connected to the pipes are bent and connected.

This is a bending process to mitigate the impact of fluid pressure as the fluid moving in the pipe passes through the gauge section.

Conventional pipe bending operations, for example, as shown in Figure 1, manually bend a pipe 4 to be bent into a pipe 2 having a predetermined diameter for bending.

The manually bending pipe 4 is mainly made of a copper tube which is easy to bend. When the bending work is performed by hand, the bending state of the pipe 4 is not good and deformed.

Further, when a pipe having a predetermined strength such as a stainless pipe is to be bent, it is almost impossible to manually bend the pipe.

Therefore, although a bending apparatus for bending stainless steel pipe has been developed, most of the bending apparatuses have a large or complicated structure, which makes it difficult to carry and the cost is high.

Practical Registration No. 20-0352537 (Notification Date: June 5, 2004)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a bending apparatus which can easily bend a pipe which is easy to carry and which is difficult to bend .

According to an aspect of the present invention, there is provided a drum apparatus comprising: a drum member for winding a spiral groove along a width direction of an outer circumferential surface so that a pipe to be bent is wound; And a bending member coupled to the drum member for bending and bending the pipe while rotating in a circumferential direction of the drum member,

The bending member includes a shaft inserted into the center of the drum member, a coupling member connected to the shaft by a connection piece and inserted into the pipe to bend the pipe while rotating along the outer peripheral surface of the drum member, And a special handle.

In addition, the shaft is formed with a spiral projection for allowing the spiral movement of the inside of the drum member, and a spiral hole having a spiral groove is formed in the center of the drum member so that the spiral projection can be inserted and spirally moved, will be.

Further, the pitch of the helical groove and the helical groove is formed so as to be in proportion to the pitch of the groove formed on the outer peripheral surface of the drum member for weight reduction.

Further, a fixing handle is formed on one side of the drum member for winding.

In addition, a fixing member capable of fixing a pipe to be inserted is coupled to one side surface of the coupling hole.

In addition, the lower surface of the coupling hole has a structure in which an insertion groove is formed to insert and support a pipe to be bent.

As described above, according to the present invention, when bending a pipe such as a stainless steel or the like, which is difficult to bend by manual operation, it is possible to easily maintain the bending state while maintaining bending.

In addition, the present invention has merits in that it has a simple structure and is easy to carry because its size and weight are not much.

FIG. 1 is a perspective view showing a state of bending by a conventional manual operation.
2 is an assembled perspective view of a bending apparatus according to the present invention.
3 is an exploded perspective view of a bending apparatus according to the present invention.
FIGS. 4A and 4B are views showing steps of bending by the bending apparatus according to the present invention.
5 is a partially enlarged cross-sectional view showing a coupling structure of a fixing member for fixing a pipe for bending inserted between a coupling member and a drum member in the bending apparatus according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a perspective view of the bending apparatus according to the present invention, and FIG. 3 is an exploded perspective view.

As shown in the drawing, the bending apparatus 10 according to an embodiment of the present invention includes a drum member 20 for winding a pipe P to be bent, And a bending member 30 for bending the pipe P (see FIG. 5) while rotating in the circumferential direction of the pipe 20.

The drum member 20 has a spiral groove 21 formed along the outer circumferential surface of the drum member 20 and has a fixing handle 22 on one side thereof.

The bending member 30 includes a shaft 31 inserted into the center of the drum member 20 and a connecting piece 32 connected to the shaft 31. The bending member 30 rotates along the outer peripheral surface of the drum member 20 A coupling hole 33 for bending the pipe P and a turning handle 34 formed on one side of the coupling hole 33. [

The shaft 31 is formed with a spiral protrusion 31a for allowing the inside of the drum member 20 to be spirally moved so that the spiral protrusion 31a is fitted to the center of the drum member 20 And a spiral hole 20a having a spiral groove is formed inside.

The pitch between the spiral holes 20a and the spiral protrusions 31a is formed to be in proportion to the pitch of the grooves 21 formed on the outer peripheral surface of the drum member 20 for winding.

The connecting piece 32 has a longitudinal connecting piece connected to an end of the shaft 31 and a transverse connecting piece connected to the longitudinal connecting piece and connected to the coupling hole 33.

5, a fixing member 35 for fixing a pipe P to be inserted is coupled to one side surface of the coupling hole 33. As shown in FIG.

The fastening member 35 is preferably a fastening member such as a screw or a bolt.

The lower surface of the coupling hole 33 is formed with an insertion groove 33a for supporting the upper surface of the pipe P to be bent.

The insertion groove 33a of the coupling member 33 faces the groove 21 formed on the outer circumferential surface of the drum member 20, (P) can be inserted.

4A, the pipe P to be bent is inserted into the insertion groove 33a of the coupling hole 33, and the bending device 10 having the above- 4B, the inserted pipe P is also simultaneously moved by rotating the turning handle 34 by holding the fixing handle 22, so that the inserted drum P is simultaneously moved, Bending is performed while being guided along the spiral groove 21 formed on the outer circumferential surface of the base plate 20.

Since the turning handle 34 is formed to have a predetermined length when the holding handle 34 is rotated by holding the turning handle 34, the pipe P, which is easily inserted even with a small force when rotating around the shaft 31, You can do it.

When the pipe P is bent, the bending member 30 comes out from the side of the drum member 20 for winding. The spiral protrusion 31a is formed on the shaft 31 of the bending member 30, A spiral hole 20a in which a spiral groove is formed is formed in the center of the drum member 20 for a kimono so that the shaft 31 rotates and moves along the spiral hole 20a so that the pipe P is wound around the drum member 20 And comes out of the drum member 20 for winding.

The bending apparatus 10 according to the embodiment of the present invention may be rotated at an angle of 450 degrees for bending, but the present invention is not limited thereto and may be appropriately adjusted as needed.

When the pipe P is completed, the fixing member 35 which has been fixed is unfastened, the pipe P is taken out of the insertion groove 33a, and the bending member 30 is rotated a little more, P to be slightly separated from the spiral grooves 21 formed on the outer circumferential surface of the drum member 20 for finishing.

Therefore, according to the present invention, in the case of a stainless steel pipe which is particularly difficult to bend, it is possible to bend easily, and the bending state can maintain a curved state without deformation compared to the conventional manual work.

2: pipe
4: pipe
10: Bending device
20: drum member for winding
20a: Spiral ball
21: Home
22: Fixing handle
30: a bending member
31: Axis
31a: Spiral projection
32: Connection
33:
33a: insertion groove
34: Turning knob
35: Fixing member

Claims

A drum member 20 for winding a spiral groove 21 along the outer circumferential surface width direction so that the pipe P to be bent is wound;
And a bending member (30) coupled to the drum member (20) for bending the pipe (P) while rotating in the circumferential direction of the drum member (20)
The bending member 30 is connected to the shaft 31 through a connecting piece 32 and a shaft 31 inserted into the center of the drum member 20 while rotating along the outer circumferential surface of the drum member 20, And a turning handle (34) formed on one side of the engaging hole (33). The pipe bending device according to claim 1, wherein the pipe (P)

The method according to claim 1,
The shaft 31 is formed with a spiral protrusion 31a for allowing the inside of the drum member 20 to be spirally moved so that the spiral protrusion 31a is fitted to the center of the drum member 20 And a spiral hole (20a) having a spiral groove is formed in the inside of the pipe bending portion (20a).

The method of claim 2,
Wherein the pitch between the spiral hole (20a) and the spiral protrusion (31a) is formed to be in proportion to the pitch of the groove (21) formed on the outer peripheral surface of the drum member (20).

The method according to claim 1,
And a fixing handle (22) is formed on one side of the drum member (20) for winding.

The method according to claim 1,
Wherein a fixing member (35) for fixing a pipe (P) inserted into one side of the coupling hole (33) is coupled.

The method according to claim 1,
Wherein the lower surface of the coupling hole (33) is formed with an insertion groove (33a) in which a pipe (P) to be bent is inserted and supported.