WO2020209530A1

WO2020209530A1 - Spiral elbow pipe curling device

Info

Publication number: WO2020209530A1
Application number: PCT/KR2020/004109
Authority: WO
Inventors: 차규석
Original assignee: 주식회사 진웅테크놀러지
Priority date: 2019-04-10
Filing date: 2020-03-26
Publication date: 2020-10-15
Also published as: KR101980626B1

Abstract

A spiral elbow pipe curling device comprises: a base body; a spiral elbow pipe rotating unit installed on the base body so as to fix a spiral elbow pipe perpendicularly to the ground and to rotate the spiral elbow pipe; a spiral elbow pipe support unit installed on the base body and disposed on the periphery of the spiral elbow pipe rotating unit in a rod shape so as to support an end of the rotated spiral elbow pipe; a flange formation unit comprising a roller unit installed on the base body so as to contact the outer surface of the rotated spiral elbow pipe or to be spaced apart therefrom, and a flange bending unit for pushing the end of the spiral elbow pipe supported by the roller unit from the inside of the spiral elbow pipe to the outside thereof such that a flange portion is formed on the end of the spiral elbow pipe; and a curling unit installed on the base body so as to move toward the flange portion formed on the spiral elbow pipe such that same contacts the flange portion and curls the flange portion, thereby forming a curling portion.

Description

Spiral elbow tube curling device

The present invention relates to a spiral elbow tube curling apparatus, and in particular, a rubber ring can be easily mounted on the end of the spiral elbow tube, and the end of the spiral elbow tube is curled after aligning the rubber ring with the end of the spiral elbow tube. The present invention relates to a spiral elbow tube curling device that fixes the rubber ring and smoothes the end by rolling up the end.

In general, spiral elbow pipes are widely used in various industrial sites such as piping and construction sites.

The spiral elbow tube is manufactured in a cylindrical shape by winding a metal plate having a corrugated belt shape in a spiral manner, and an apparatus and method for manufacturing a spiral elbow tube is disclosed in Korean Patent Application Publication No. 10-2008-0081673, an elbow manufacturing apparatus for a spiral duct, and It is disclosed in the manufacturing method, (published date: 2008.09.10).

In general, since the spiral elbow tube is manufactured in a cylindrical shape by continuously winding material in a spiral manner, the spiral elbow tube has a helical seam, which is formed with a thicker thickness than other parts of the spiral elbow tube. do. At the junction, since each metal plate is bent in a hook shape and overlaps each other, four layers of the metal plate overlap.

1 is a cross-sectional view showing the appearance of a spiral elbow tube and a junction portion.

Referring to FIG. 1, it can be seen that four layers of metal plates are overlapped at the junction.

On the other hand, since the spiral elbow tube is continuously manufactured while the long corrugated band rotates, it must be cut at an appropriate part to produce each product.

When cutting, the spiral elbow tube is mainly cut using a cutting facility, and the spiral elbow tube is mainly disposed between the interlocking cutters and then cut through the cutters.

The cutting part is formed with a very sharp end, so that the operator may injure the body during work, and a curling process to smooth the end is required.

This curling process is performed while rotating the spiral elbow tube.

However, as described above, the spiral elbow tube is not easy to curl because the seam is formed in a spiral shape, and the thickness of the joint is thicker than other parts.

In addition, when connecting other pipes to the spiral elbow pipe, a rubber ring is inserted to keep the connection part tight.If the diameter of the spiral elbow pipe is large, the operator manually increases the rubber ring and inserts it into the outer surface of the spiral elbow pipe. The operator consumes a lot of energy and takes a lot of time to install the rubber ring, and when the operator manually inserts the rubber ring, the position of the rubber ring is different for each spiral elbow tube, so it is difficult to place the rubber ring at the designated position. .

The problem to be solved by the present invention is to provide a spiral elbow tube curling device capable of preventing a worker's body damage and shape deformation of the spiral elbow tube.

In addition, another problem to be solved by the present invention is to provide a spiral elbow tube curling device capable of maintaining airtightness when connected to another spiral elbow tube by inserting a rubber ring to the outside of the spiral elbow tube before curling.

In one embodiment, the spiral elbow tube curling device includes a base body; A spiral elbow tube rotation unit installed on the base body and fixing the spiral elbow tube in a vertical state with respect to the ground and rotating the spiral elbow tube; A spiral elbow tube support unit installed on the base body and disposed around the spiral elbow tube rotation unit in a rod shape to support an end of the spiral elbow tube rotated; A roller unit installed on the base body and contacting or spaced apart from the outer surface of the rotating spiral elbow tube and the end of the spiral elbow tube supported by the roller unit are pushed outward from the inside of the spiral elbow tube. A flange forming unit including a flange bending unit unit forming a flange portion at an end of the elbow tube; And a curling unit installed on the base body and moving toward the flange portion formed in the spiral elbow pipe and in contact with the flange portion to form a curling portion by rolling the flange portion.

The spiral elbow tube curling device is a linear reciprocating transfer unit installed in the base body and four radially disposed around the spiral elbow tube rotating unit, a rubber ring fixing unit respectively mounted on the linear reciprocating transfer unit, and the rubber ring A rubber ring mounting unit including a trigger unit for removing the rubber ring extended from the fixed unit; And it is installed on the base body may further include a rubber ring alignment unit for aligning the position of the rubber ring mounted on the surface of the spiral elbow tube.

The rubber ring alignment unit of the spiral elbow tube curling device includes an alignment member having the same curvature as the surface of the spiral elbow tube and in contact with the end of the rubber ring, an elevating unit for raising and lowering the alignment member, and the alignment member. And a cushion unit coupled to the alignment member to absorb applied vibration and shock.

The flange forming unit of the spiral elbow tube curling device includes a shock absorbing unit for buffering vibration and impact applied to the roller unit.

The flange bending unit unit of the spiral elbow tube curling apparatus has an inclined surface forming the flange portion on the spiral elbow tube.

A space G is formed between the lower surface of the roller unit of the spiral elbow tube curling apparatus and the flange bending unit disposed under the roller unit by the thickness of the spiral elbow tube.

A portion of the curling unit of the spiral elbow tube curling device that contacts the flange portion has a curling groove formed in a concave curved surface to curl the flange portion.

According to the spiral elbow tube curling apparatus according to the present invention, insertion and curling of a rubber ring can be performed at once.

In addition, according to the spiral elbow tube curling apparatus according to the present invention, the rubber ring is fixed by curling by curling after insertion of the rubber ring, and the end thereof can be smoothed.

Further, according to the spiral elbow tube curling apparatus according to the present invention, even if a spiral joint is formed by providing a buffer device in the curling unit, curling can be performed smoothly.

2 is a plan view of a spiral elbow tube curling apparatus according to an embodiment of the present invention.

3 is a cross-sectional view of the flange forming unit shown in FIG. 2.

4 is a cross-sectional view showing the rubber ring mounting unit shown in FIG. 2.

5 is a view showing that a rubber ring is formed at an uneven height in the spiral elbow tube.

6 is a cross-sectional view of the curling unit shown in FIG. 2.

7 is a cross-sectional view showing the operation of the rubber ring alignment unit.

The present invention described below may apply various transformations and may have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail in the detailed description.

However, this is not intended to limit the present invention to a specific embodiment, it is to be understood to include all conversions, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the present invention, when it is determined that a detailed description of a related known technology may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance.

In addition, terms such as first and second may be used to classify and describe various components, but the components should not be limited by the terms. These terms are used only for the purpose of distinguishing one component from another component.

2, the spiral elbow tube curling device 900 includes a base body 100, a spiral elbow tube rotation unit 200, a spiral elbow tube support unit 300, a flange forming unit 400, a curling unit 500 ), a rubber ring mounting unit 600 and a rubber ring alignment unit 700.

The base body 100 serves to fix and receive the components constituting the spiral elbow tube curling device 900 at a designated position.

In one embodiment of the present invention, the base body 100 may be manufactured by assembling a frame into a rectangular parallelepiped shape.

The spiral elbow tube rotation unit 200 serves to insert the spiral elbow tube and rotate the inserted spiral elbow tube.

The spiral elbow tube rotation unit 200 is a rotation unit (not shown) that rotates the spiral elbow tube gripper 210 and the spiral elbow tube gripper 210 composed of a plurality of pieces to grip the inner surface of the spiral elbow tube. ) Can be included. The rotating unit may include, for example, a motor that rotates at a specified speed.

The spiral elbow tube gripper 210 composed of a plurality of pieces expands when the spiral elbow tube is inserted into the upper portion of the gripper 210 and is in close contact with the inner surface to fix the spiral elbow tube. When the elbow pipe gripper 210 is in close contact with the inner side of the spiral elbow pipe and the elbow pipe is fixed, the support unit 300 descends. When the elbow pipe gripper 210 rotates after the support unit 300 is lowered, the spiral elbow also rotates.

The spiral elbow tube support unit 300 is disposed on the upper surface of the base body 100, and the spiral elbow tube support unit 300 is disposed on the pedestal 310 and the pedestal 310, and is in contact with the end of the spiral elbow tube. It may include a support 320 having a rod shape.

The spiral elbow tube support unit 300 fixes the elbow tube so that it can be disposed at a designated position without falling when the spiral elbow tube is inserted into the rotation unit 200.

Figure 3 is a cross-sectional view of the flange forming unit shown in Figure 2, Figure 3 (a) shows the flange portion is formed before, Figure 3 (b) shows a state in which the flange portion 11 is formed.

2 and 3, the flange forming unit 400 includes a roller unit 410 and a flange bending unit 420. In addition, a buffer unit 415 may be disposed on the roller unit 410 of the flange forming unit 400.

The axis of the roller unit 410 is disposed in a direction parallel to the axial direction of the spiral elbow tube 1 defined in FIG. 3, and the roller unit 410 is coupled to the spiral elbow tube rotation unit 200 shown in FIG. It serves to support the outer surface of the spiral elbow tube (1) that is rotated.

When the flange portion 11 is formed at the end of the spiral elbow tube 1, the roller unit 410 serves to support the spiral elbow tube 1 so that the spiral elbow tube is not pushed out. At this time, since the spiral elbow tube 1 is rotated, the axis of the roller unit 410 is coupled to a bearing or the like so that the roller unit 410 in contact with the spiral elbow tube 1 is also rotated together with the spiral elbow tube.

In one embodiment of the present invention, the roller unit 410 is linearly reciprocated by a linear reciprocating mechanism (not shown), whereby the roller unit 410 is in contact with the surface of the rotating spiral elbow tube 1 or It is spaced apart from the surface of the rotating spiral elbow tube (1).

The axis of the flange bending unit 420 is disposed in a direction parallel to the radial direction of the spiral elbow tube 1 defined in FIG. 3. That is, the axis of the flange bending unit 420 is disposed perpendicular to the axis of the roller unit 410.

The flange bending unit 420 is coupled to a linear reciprocating motion mechanism (not shown), and the flange bending unit 420 is moved in the radial direction of the spiral elbow tube 1 defined in FIG. 2 by the linear reciprocating motion mechanism.

The flange bending unit 420 is moved in the radial direction from the bottom of the roller unit 410, and the space between the lower surface of the roller unit 410 and the flange bending unit 420 is spaced apart by the thickness of the spiral elbow tube 1 (G) is formed, and the end portion of the spiral elbow tube 1 is bent by 90° by the spacing space G to form a flange portion 11.

In order for the flange bending unit 420 to bend the end of the spiral elbow tube 1 to form a flange portion, the flange bending unit 420 may be formed in a cylindrical shape, and the outer diameter (in the direction of the spiral elbow tube) is As the diameter decreases as it goes inward, the inclined surface 424 is formed. The end of the spiral elbow tube 1 is bent smoothly by the inclined surface 424 to form a flange portion.

That is, as shown in FIG. 3, the flange bending unit 420 in a state in which the end of the rotating spiral elbow tube 1 is inserted into the groove 422 of the flange bending unit 420 is When moving in a direction from the inner surface to the outer surface, the end of the spiral elbow tube 1 is continuously pushed in the radial direction, thereby forming the flange portion 11.

On the other hand, the buffer unit 415 formed in the roller unit 410 absorbs vibration or shock generated by the convex joint formed in the spiral elbow tube 1, and in one embodiment of the present invention, the buffer unit 415 is , For example, it may include a spring, damper, etc. absorbing vibration or shock.

2 and 4, a rubber ring mounting unit 600 is coupled to the base body 100 so that the rubber ring can be easily and quickly mounted on the outer surface of the spiral elbow tube.

The rubber ring mounting unit 600 includes a linear reciprocating transfer unit 610, a rubber ring fixing unit 620, and a trigger unit 630.

In one embodiment of the present invention, the rubber ring mounting unit 600 is coupled to the base body 100, and in particular, four may be radially disposed around the spiral elbow tube rotation unit 200. Although in one embodiment of the present invention, it is shown and described that four spiral elbow tube rotation units 200 are disposed around the spiral elbow tube rotation unit 200, three or four or more spiral elbow tubes rotate differently. The unit 200 may be disposed around the spiral elbow tube rotation unit 200.

The rubber ring 2 is caught in the four straight reciprocating rubber ring fixing units 620, and as the linear reciprocating transfer unit 610 is retracted, the rubber ring 2 is enlarged larger than the size of the spiral elbow tube.

The rubber ring fixing unit 620 serves to hold the rubber ring, and the rubber ring fixing unit 620 may be formed in a rod shape, and is in contact with the rubber ring 2 of the rubber ring fixing unit 620 In the position, a part may be formed in a curved surface so that the rubber ring can be easily separated.

The trigger unit 630 is hinged to the lower end of the rubber ring fixing unit 620, and the trigger unit 630 rotates the rubber ring fixing unit 620 so that the rubber ring is elastically fixed to the rubber ring fixing unit 620 This separation allows the rubber ring to be disposed on the outer surface of the spiral elbow tube.

In an embodiment of the present invention, the trigger unit 630 may include a fluid pressure cylinder that rotates the rubber ring fixing unit 620.

On the other hand, the rubber ring provided from the rubber ring mounting unit 600 to the outer surface of the spiral elbow tube is disposed at a constant height on the outer surface of the spiral elbow tube because the height of the rubber ring mounting unit 600 is constant. As a result, as shown in FIG. 5, the rubber rings 2 may be disposed at different heights on the spiral elbow tube 1. In this way, when the rubber ring 2 is disposed at different heights on the spiral elbow tube 1, the sealing performance may be greatly reduced. In addition, the rubber ring (2) should be attached to the end of the spiral elbow pipe (1) for airtightness when connecting to each other. Therefore, it is necessary to move the position of the rubber ring 2 to a desired position and to be arranged in parallel.

6 is a cross-sectional view showing the rubber ring alignment unit shown in FIG. 2.

2 and 6, the rubber ring alignment unit 700 includes an alignment member 710, an elevating unit 720, and a cushion unit 730.

The alignment member 710 is, for example, the curvature of the spiral elbow tube or the rubber ring 2 in order to adjust the rubber ring 2 obliquely disposed on the outer surface of the spiral elbow tube and transfer it to a designated position. It includes a curved plate 712 similar to curvature.

The elevating unit 720 adjusts the position of the rubber ring 2 by pressing the rubber ring 2 while the alignment member 710 and the alignment member 710 are in contact with the upper surface of the rubber ring 2. The lowering unit 720 raises or lowers the alignment member 710. When the alignment member 710 is lowered, the rubber ring 2 is lowered by the curved plate 712 of the alignment member. The alignment position can be freely adjusted, and when the flange is formed, it is preferable to align it so that it descends to the flange portion 11. And the rubber ring (2) is not smoothly aligned, but has a protruding part, and the top surface is also inserted into the Spiral Elbuo tube (1) so that it is not smooth, but is aligned at a constant height through the column unit 700. can do.

The cushion unit 730 is mounted on the alignment member 710 and serves to absorb vibration or shock generated by the convex joint formed on the spiral elbow tube when the alignment member 710 is in contact with the spiral elbow tube and moves up and down. do. In one embodiment of the present invention, the cushion unit 730 may include, for example, a spring, a damper, or the like that absorbs a shock or shock.

When the rubber ring 2 is aligned to a desired position by the rubber ring alignment unit 700, the curling operation is performed by the curling unit.

7 is a cross-sectional view of the curling unit shown in FIG. 2.

Referring again to FIGS. 2 and 7, the base body 100 has a curling unit 500 for curling the flange 11 formed at the end of the spiral elbow tube 1 by the flange forming unit 400. Is placed.

The curling unit 500 is moved toward the flange portion formed at the end of the spiral elbow tube 1 by the flange forming unit 400 and is in contact with the flange portion to form a curling portion 1a by rolling the flange portion.

The curling unit 500 includes a curling member 510 and a linear reciprocating motion mechanism 520.

The axis of the curling member 510 is arranged in parallel with the axial direction defined in FIG. 5, and the outer surface of the curling member 500 is in contact with the flange portion formed at the end of the spiral elbow tube 1 and the flange portion is rolled up. A concave curling groove 512 is formed.

A linear reciprocating mechanism 510 is coupled to the curling member 510 so that the flange portion may be in contact with the curling groove 512 so that the curling member 510 linearly reciprocates along the radial reverberation.

Meanwhile, a curling portion is formed by processing the flange portion and the flange portion at the end of the spiral elbow tube, and then the rubber ring 2 shown by the dotted line in FIG. 1 may be mounted on the outer surface of the spiral elbow tube. This rubber ring serves to seal the connection part when connecting the spiral elbow tube to another straight tube.

In general, the rubber ring used for the spiral elbow tube can be made of elastic rubber material, and when the operator extends and inserts the small diameter rubber ring into the spiral elbow tube with a large diameter, a very large force is required. The position of the rubber ring disposed on may be uneven.

In one embodiment of the present invention, the rubber ring alignment unit 700, for example, may be disposed on the top of the curling unit 500 described above, in this way, the rubber ring alignment unit on the top of the curling unit 500 By arranging 700, the area occupied by the facility can be shortened.

As described in detail above, after forming a flange portion by bending the end of the sharp spiral elbow tube 90° outward, the flange portion is curled again, and the rubber ring is mechanically bonded to the curled spiral elbow tube. It has the effect of improving productivity by automating a series of processes by adjusting the position.

On the other hand, the embodiments disclosed in the drawings are merely presented specific examples to aid understanding, and are not intended to limit the scope of the present invention. It is apparent to those of ordinary skill in the art that other modifications based on the technical idea of the present invention may be implemented in addition to the embodiments disclosed herein.

The present invention can be applied to the industrial field of manufacturing a spiral elbow.

Claims

Base body;

A spiral elbow tube rotation unit installed on the base body and fixing the spiral elbow tube in a vertical state with respect to the ground and rotating the spiral elbow tube;

A spiral elbow tube support unit installed on the base body and disposed around the spiral elbow tube rotation unit in a rod shape to support an end of the spiral elbow tube rotated;

A roller unit installed on the base body and contacting or spaced apart from the outer surface of the rotating spiral elbow tube and the end of the spiral elbow tube supported by the roller unit are pushed outward from the inside of the spiral elbow tube. A flange forming unit including a flange bending unit forming a flange portion at an end of the elbow tube;

A spiral elbow pipe curling apparatus comprising a curling unit installed on the base body and moving toward the flange portion formed in the spiral elbow pipe and in contact with the flange portion to form a curling portion by rolling the flange portion.
The method of claim 1,

A linear reciprocating transfer unit installed on the base body and arranged radially around the spiral elbow tube rotation unit, a rubber ring fixing unit respectively mounted on the linear reciprocating transfer unit, and a rubber ring extended from the rubber ring fixing unit. Rubber ring mounting unit including a trigger unit to remove; And

A spiral elbow tube curling device installed on the base body and further comprising a rubber ring alignment unit for aligning a position of the rubber ring mounted on the surface of the spiral elbow tube.
The method of claim 2,

The rubber ring alignment unit has the same curvature as the surface of the spiral elbow tube, the alignment member contacting the end of the rubber ring, an elevating unit for raising and lowering the alignment member, and vibration and impact applied to the alignment member. Spiral elbow tube curling device comprising a cushion unit coupled to the alignment member for absorption.
The method of claim 1,

The flange forming unit is a spiral elbow tube curling apparatus comprising a buffer unit for buffering vibration and impact applied to the roller unit.
The method of claim 1,

A spiral elbow pipe curling device in which an inclined surface for forming the flange portion in the spiral elbow pipe is formed in the flange bending unit.
The method of claim 1,

A spiral elbow pipe curling apparatus in which a spacing space G spaced apart by a thickness of a spiral elbow pipe is formed between a lower surface of the roller unit and the flange bending unit disposed under the roller unit.
The method of claim 1,

A portion of the curling unit in contact with the flange portion is a spiral elbow tube curling device having a curling groove formed in a concave curved surface to curl the flange portion.