KR101874422B1 - Apparatus for cutting edge of bellows pipe - Google Patents

Apparatus for cutting edge of bellows pipe Download PDF

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Publication number
KR101874422B1
KR101874422B1 KR1020180051032A KR20180051032A KR101874422B1 KR 101874422 B1 KR101874422 B1 KR 101874422B1 KR 1020180051032 A KR1020180051032 A KR 1020180051032A KR 20180051032 A KR20180051032 A KR 20180051032A KR 101874422 B1 KR101874422 B1 KR 101874422B1
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South Korea
Prior art keywords
rotary shaft
coupled
unit
cutter
base body
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KR1020180051032A
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Korean (ko)
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윤복현
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윤복현
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/24—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • B26D3/164—Cutting rods or tubes transversely characterised by means for supporting the tube from the inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D2007/013—Means for holding or positioning work the work being tubes, rods or logs

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)

Abstract

The expansion / contraction tube cutting device comprises a base body; A first rotary shaft unit coupled to the base body and rotated, a first cutter having a disk shape coupled to the first rotary shaft unit, a separation preventing member coupled to the first rotary shaft unit and spaced apart from the first cutter, A first rotation axis module including a separation preventing plate disposed on the first rotation axis unit so as to face the separation preventing member; A second rotary shaft unit coupled to the base body in parallel with the first rotary shaft, a second cutter arranged to be shifted from the first cutter in the second rotary shaft unit, and a second rotary shaft unit coupled to the second rotary shaft unit, A second rotating shaft module including a supporting member; An extension pipe supporting unit coupled to the base body corresponding to a lower portion of the second rotary shaft module and rotatably supporting an extension pipe cut by the first and second cutters; And a gap adjusting unit coupled to the first rotating shaft unit to adjust the distance between the first and second cutters and the coupling of the expansion and contraction tube.

Figure R1020180051032

Description

[0001] APPARATUS FOR CUTTING EDGE OF BELLOWS PIPE [0002]

The present invention relates to an expansion / contraction pipe edge cutting apparatus, which is capable of preventing the generation of burrs in a cut portion by cutting the rim of an expansion / contraction pipe inside and outside of an expansion / The present invention relates to an apparatus for cutting a pipe of a pipe.

Bellows pipes are widely used in various industrial fields such as automobile industry, plumbing and construction site.

Generally, the expansion and contraction tube is composed of a wrinkle portion capable of stretching and a rim without wrinkles at both ends of the wrinkle portion, and it can be manufactured with a rim on the wrinkle portion when producing the expansion and contraction tube.

When an extension pipe having a rim on the corrugated portion is used, an extension pipe may be required in some industrial fields to remove the rim or cut a part of the rim.

However, it is very difficult to separate only the rim connected to the wrinkle portion of the expansion and contraction tube, and the wrinkle portion may be damaged during removal of the rim, and the rim may be damaged or deformed during cutting, Burrs may be formed inside the rim and burrs may cause various problems such as a subsequent process failure.

Also, the expansion and contraction tube is manufactured with various diameters. When the diameters of the expansion and contraction tubes are different from each other, there is a lot of inconvenience in cutting the expansion and contraction tube by one cutting equipment.

For this reason, there is a need for a technique for cutting the rim connected to the wrinkle portion of the expansion and contraction tube without cutting the rim without any damage or burr, regardless of the size of the expansion and contraction pipe.

Japanese Patent Application Laid-Open No. 2005-111592, a method of cutting a coated corrugated tube cutter and a coated corrugated tube, (Published: Apr. 28, 2005)

The present invention provides an apparatus for cutting an extensible tube edge that can prevent damage to a rim or burrs formed on the rim when cutting a rim arranged on both sides of a wrinkle portion of an extension pipe.

The present invention provides a general-purpose flexible pipe cutting apparatus capable of cutting the rim of an expansion and contraction pipe having different diameters in one facility.

In one embodiment, the expansion and contraction cutting apparatus includes a base body; A first rotary shaft unit coupled to the base body and rotated, a first cutter having a disk shape coupled to the first rotary shaft unit, a separation preventing member coupled to the first rotary shaft unit and spaced apart from the first cutter, A first rotation axis module including a separation preventing plate disposed on the first rotation axis unit so as to face the separation preventing member; A second rotary shaft unit coupled to the base body in parallel with the first rotary shaft, a second cutter arranged to be shifted from the first cutter in the second rotary shaft unit, and a second rotary shaft unit coupled to the second rotary shaft unit, A second rotating shaft module including a supporting member; An extension pipe supporting unit coupled to the base body corresponding to a lower portion of the second rotary shaft module and rotatably supporting an extension pipe cut by the first and second cutters; And a gap adjusting unit coupled to the first rotating shaft unit to adjust the distance between the first and second cutters and the coupling of the expansion and contraction tube.

The first rotary shaft unit of the extensible tube rim cutting apparatus includes a first rotary shaft to which the first cutter, the release preventing member and the departure prevention plate are coupled, a first universal joint coupled to the first rotary shaft, and a second universal joint connected to the first universal joint Wherein the second rotary shaft unit includes a second rotary shaft to which the second cutter and the support member are coupled, a second universal joint coupled to the second rotary shaft, and a second universal joint coupled to the second universal joint, And a second drive motor.

The extension and contraction tube support unit of the expansion and contraction tube cutting apparatus includes a pair of first and second guide rails extending in a direction connecting the central axes of the first rotary shaft unit and the second rotary shaft unit, A guide member that is slidably coupled to the rail, guide rollers mounted on the guide member in a direction parallel to the first rotary shaft unit, a screw threadably coupled to the guide member in parallel with the first and second guide rails, And a motor fixed to the base body and rotating the screw to move up and down the guide member.

The gap adjusting unit of the extension and contraction cutting apparatus includes a slide unit coupled to the first rotary shaft unit and slidable relative to the base body to move the first rotary shaft unit up and down and a displacement generating unit .

The distance between the release preventing member and the first cutter of the extension and contraction cutting apparatus is adjusted in accordance with the size of the expansion and contraction tube.

The pipe extrusion apparatus according to the present invention can prevent a burr from being damaged or rim when cutting a rim disposed on both sides of a wrinkle portion of an extension pipe, It is possible to cut the rim of the expansion and contraction tube in one piece of equipment.

1 is a side view of an apparatus for cutting an extension and contraction tube according to an embodiment of the present invention.
2 is a front view in the 'X' direction of FIG.
3 is an enlarged view of the portion 'A' shown in FIG.
FIGS. 4 to 6 are cross-sectional views illustrating a process of cutting the rim of an expansion / contraction pipe by an expansion / contraction rim cutting apparatus according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The invention, which is set forth below, may be embodied with various changes and may have various embodiments, and specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail.

It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Also, the terms first, second, etc. may be used to distinguish between various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

1 is a side view of an apparatus for cutting an extension and contraction tube according to an embodiment of the present invention. 2 is a front view in the 'X' direction of FIG.

1 and 2, the expansion / contraction cutting device 700 includes a base body 100, a first rotation axis module 200, a second rotation axis module 300, an extension / contraction tube support unit 400, Unit 500 as shown in FIG.

The base body 100 serves to fix and support the first rotation axis module 200, the second rotation axis module 300, the extension and contraction tube support unit 400 and the gap adjustment unit 500 at a predetermined position.

The first rotary shaft module 200 serves to rotate the first cutter 260 for cutting the expansion and contraction tube.

The first rotary shaft module 200 is coupled to the base body 100 and the first rotary shaft module 200 includes a first rotary shaft unit 250, a first cutter 260 and a release preventing member 270.

The first rotating shaft unit 250 includes a first rotating shaft 252, a first universal joint 254, and a first driving motor 256.

The first rotating shaft 252 is formed in a columnar shape and is disposed in the X-axis direction defined in FIG. The first rotating shaft 252 may be made of a metal material so that the shape of the first rotating shaft 252 is not deformed due to external impact or vibration.

The first rotary shaft 252 is rotatably supported on the shaft support 110 through a shaft support 110 protruding from the base body 100 in a columnar shape.

One end of the first universal joint 254 is coupled to the first rotation shaft 252 and the other end of the first universal joint 254 is coupled to the first drive motor 256.

The first universal joint 254 smoothly transmits the power generated from the fixed first driving motor 256 to the first rotary shaft 252 even if the first rotary shaft 252 is moved in the Y- And the first universal joint 254 has a structure that can be increased or decreased in length while transmitting power.

The first driving motor 256 is fixed to the base body 100 and the power generated from the first driving motor 256 is transmitted to the first rotating shaft 252 through the first universal joint 254, The first rotary shaft 252 is rotated clockwise or counterclockwise.

Referring again to FIG. 1, the first cutter 260 of the first rotary shaft module 200 is coupled to the first rotary shaft 252. The first cutter 260 may be formed, for example, in a disk shape, and the first cutter 260 may be made to have a hardness not less than the hardness of the expansion and contraction pipe to be cut.

In one embodiment of the present invention, the first cutter 260 may be disposed at a position corresponding to the rim connected to the corrugation of the expansion pipe.

The first cutter 260 is coupled to the first rotation shaft 252 so that the cutting position can be changed according to the position of the rim of the expansion and contraction tube on the first rotation axis 252.

The separation preventing member 270 of the first rotating shaft module 200 is coupled to the first rotating shaft 252 and the separation preventing member 270 is disposed at a position spaced apart from the first cutter 260, (270) may be disposed at a position in contact with the corrugated portion of the expansion and contraction pipe.

The release preventing member 270 serves to support one side of the expansion and contraction tube so that the expansion and contraction tube can be rotated at a designated position without being arbitrarily disengaged from the rotating first rotation axis 252. The release preventing member 270 of the present invention can be moved laterally on the first rotation axis 252 in order to correspond to the width of the expansion and contraction tube.

A separation preventing plate 255 having a disk shape is coupled to the first rotation shaft 252 at a position facing the separation preventing member 270. The separation preventing plate 255 is disposed on the other side .

The separation preventing member 270 and the separation preventing plate 255 contact the one side of the extension pipe and the other side opposite to the one side, respectively, so that the extension pipe can be stably rotated.

The second rotary shaft module 300 serves to rotate the second cutter which works together with the first cutter 260 for cutting the expansion and contraction tube.

The second rotary shaft module 300 is coupled to the base body 100 and the second rotary shaft module 300 includes a second rotary shaft unit 350, a second cutter 360, and a support member 370.

The second rotary shaft unit 350 includes a second rotary shaft 352, a second universal joint 354, and a second drive motor 356.

The second rotary shaft 352 is formed in a columnar shape and the second rotary shaft 352 is disposed in parallel with the first rotary shaft 252. The second rotary shaft 352 is made of a metal material so that the shape of the second rotary shaft 352 is not deformed due to external impact or vibration.

The second rotary shaft 352 passes through a shaft support 110 protruding in a columnar shape from the base body 100 and is rotatably supported on the shaft support 110 through a bearing or the like.

One end of the second universal joint 354 is coupled to the second rotation shaft 352 and the other end of the second universal joint 354 is coupled to the second drive motor 356.

The second universal joint 354 allows the power generated from the fixed second drive motor 356 to be smoothly transmitted to the second rotation shaft 352 despite vibration or the like provided from the outside.

The second drive motor 356 is fixed to the base body 100 and the power generated by the second drive motor 356 is transmitted to the second rotation shaft 352 through the second universal joint 354, The second rotary shaft 352 is rotated clockwise or counterclockwise.

While it has been shown and described that the first rotational axis module 200 includes a first drive motor 256 and the second rotational axis module 300 includes a second drive motor 356 in one embodiment of the present invention Alternatively, the first rotary shaft module 200 and the second rotary shaft module 300 may be rotated together using a single drive motor.

The first rotary shaft 252 of the first rotary shaft module 200 and the second rotary shaft 352 of the second rotary shaft module 300 are rotated in opposite directions to each other, 2 rotation shafts 252 and 352 must be rotated in mutually opposite directions so that the rim can be cut while rotating the extension pipe in the designated direction.

3 is an enlarged view of the portion 'A' shown in FIG.

Referring to FIGS. 1 and 3 again, the second cutter 360 of the second rotary shaft module 300 is coupled to the second rotary shaft 352. The second cutter 360 may be formed, for example, in a disc shape, and the second cutter 360 may be made to have a hardness not less than the hardness of the expansion and contraction pipe to be cut.

In an embodiment of the present invention, the second cutter 360 may be disposed at a position corresponding to a rim connected to the corrugation of the expansion and contraction tube, and the second cutter 360 may be disposed at a position They can be disposed at mutually offset positions.

The side of the second cutter 360 may be in contact with the side of the first cutter 260. The first and second cutters 260 and 360 Can be precisely cut off.

Also, by disposing the first cutter 260 and the second cutter 360 as described above, a burr is not generated when the rim is cut by the first and second cutters 260 and 360. [

Alternatively, if one of the first cutter 260 and the second cutter 360 is used to cut a frame, a burr is generated in a direction toward the inside or outside of the frame, do.

On the other hand, the second cutter 360 is coupled on the second rotary shaft 352 so that the cutting position can be changed according to the position of the rim of the expansion and contraction tube on the second rotary shaft 352.

The support member 370 of the second rotary shaft module 300 is coupled to the second rotary shaft 352. The support member 370 is disposed at a position spaced apart from the second cutter 360, Serves to support the corrugated portion of the extension pipe where the rim is cut.

On the other hand, when an extension pipe having a cylindrical shape is not supported by a certain force when the rim of the expansion pipe is cut by the first rotary shaft module 200 and the second rotary shaft module 300, a large vibration is applied to the extension pipe, The rotation of the pipe becomes unstable, which may cause breakage or damage of the expansion and contraction pipe.

To prevent this, an extension pipe support unit 400 is coupled to the base body 100.

Referring to FIGS. 1 and 2 again, the extension pipe support unit 400 is coupled to the base body 100 corresponding to the lower portion of the second rotary shaft module 300, and is supported by the first and second cutters 260 and 360 And serves to rotatably support a telescopic tube, a part of which is cut off.

The extension pipe support unit 400 includes a first guide rail 410, a second guide rail 420, a guide member 430, guide rollers 442, 444, 446 and 448, a screw 450 and a motor 460.

The first guide rail 410 is disposed at a lower portion of the second rotary shaft module 300 of the base body 100. The first guide rail 410 is formed into a rod shape, Axis direction as shown in Fig.

The second guide rail 420 is disposed in the base body 100 and the second guide rail 420 is formed in a bar shape and the second guide rail 420 is separated from the first guide rail 410 The first guide rail 410 and the second guide rail 410 are disposed parallel to each other.

The guide member 430 is formed in a plate shape and the guide member 430 is slidably engaged with the first guide rail 410 and the second guide rail 420. The guide member 430 is lifted and lowered in the Y-axis direction along the first and second guide rails 410 and 420.

A bushing 435 is formed at the center of the rear surface of the guide member 430 and a screw 450 to be described later is screwed to the bushing 435.

The guide member 430 is provided with a plurality of guide rollers 442, 444, 446, 448. Four guide rollers 442, 444, 446 and 448 are disposed on the guide member 430 in the form of a 2 × 2 matrix, and the guide rollers 442, 444, 446 and 448 are disposed on the first rotation axis module 200 and the second rotation axis module 300).

2, the two guide rollers 442 and 444 relatively disposed on the upper side support the outer surface of the relatively small diameter expansion and contraction tube B, and the two guide rollers 446 and 448 disposed on the relatively lower side, (C) having a relatively large diameter.

Of course, depending on the diameter of the expansion and contraction tube, the guide member 430 can be lifted or lowered to support the extension and contraction tube on two of the guide rollers 442, 444, 446 and 448.

The screw 450 is screwed to the bushing 435 of the guide member 430 and the guide member 430 is stably lifted and lowered by rotating the screw 450.

The motor 460 is coupled to the lower portion of the base body 100 and the motor 460 rotates the screw 450 to raise and lower the guide member 430 and the guide rollers 442, 444, 446 and 448.

Referring to FIGS. 1 and 2 again, the gap adjusting unit 500 includes a first rotation axis module 200 which is coupled to the first rotation axis module 200 by lifting or lowering the first rotation axis module 200 in the Y- The first cutter 260 and the second cutter 360 coupled to the second rotary shaft module 300 can be adjusted and the extension and contraction tube can be provided and discharged between the first and second rotary shaft modules 200 and 300 .

The gap adjusting unit 500 includes a slide unit 510 and a displacement generating unit 520.

The slide unit 510 is disposed inside the groove formed concavely from the upper part of the shaft support 110 of the base body 100 and is slid upward or downward in the groove. That is, the first rotary shaft 252 of the first rotary shaft module 200 is also lifted and lowered by the lifting and lowering of the slide unit 510.

The slide unit 510 may be coupled with a bearing coupled to the outer surface of the first rotation shaft 252 so that the first rotation shaft 252 may be rotatably coupled.

 The displacement generating unit 520 is coupled to the upper end of the slide unit 510 and the displacement generating unit 520 can be screwed to the slide unit 510. The displacement generating unit 520 is formed in a handle shape.

Accordingly, the slide unit 510 and the first rotation shaft 252 are raised or lowered by rotating the displacement generating unit 520 clockwise or counterclockwise, and the slide unit 510 and the first rotation shaft 252 are moved up and down through the displacement generating unit 520, 1 cutter 260 and the second cutter 360. In addition, the first rotary shaft 252 and the first cutter 260 are lowered to push the rim of the expansion and contraction tube to stretch a part of the rim It can be cut from the tube.

Hereinafter, the operation of the expansion / contraction cutting apparatus will be described with reference to FIGS. 4 to 6. FIG.

FIGS. 4 to 6 are cross-sectional views illustrating a process of cutting the rim of an expansion / contraction pipe by an expansion / contraction rim cutting apparatus according to an embodiment of the present invention.

1 and 4, first, in order to cut the rim 7 formed on one side of the corrugated portion 5 of the expansion pipe 10, the displacement generating unit 520 of the gap adjusting unit 500 is first rotated The slide unit 510 is lifted to separate the first rotary shaft module 200 and the second rotary shaft module 300 from each other. In this process, the first cutter 260 and the second cutter 360 are spread apart.

When the first cutter 260 and the second cutter 360 are separated from each other, the expansion and contraction tube 10 is inserted into the gap between the first cutter 260 and the second cutter 360, Is arranged on the outer circumference of the frame.

5, when the displacement generating unit 520 is rotated in the reverse direction to lower the slide unit 510, the first rotary shaft module 200 is lowered as a whole, And the separation plate 255. The first cutter 260 is lowered and presses the rim 7 of the expansion and contraction pipe 10.

The first driving motor 256 of the first rotary shaft module 200 and the second driving motor 256 of the second rotary shaft module 300 shown in FIG. 1 are rotated in opposite directions to each other, The extension pipe 10 is rotated so that a part of the rim 7 of the expansion and contraction pipe 10 is cut by the shear force between the first cutter 260 and the second cutter 360, do.

As described above in detail, according to the present invention, it is possible to prevent burrs from being damaged or rim when cutting the rim arranged on both sides of the wrinkle portion of the expansion and contraction tube, and further, It is possible to cut the rim of the expansion and contraction tube having one piece of equipment.

It should be noted that the embodiments disclosed in the drawings are merely examples of specific examples for the purpose of understanding, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

100 ... Base body 200 ... First rotary shaft module
300 ... second rotation axis module 400 ... extension pipe support unit
500 ... interval adjusting unit 700 ... extension pipe cutting device

Claims (5)

A base body;
A first rotary shaft unit coupled to the base body and rotated, a first cutter having a disk shape coupled to the first rotary shaft unit, a separation preventing member coupled to the first rotary shaft unit and spaced apart from the first cutter, A first rotation axis module including a separation preventing plate disposed on the first rotation axis unit so as to face the separation preventing member;
A second rotary shaft unit coupled to the base body in parallel with the first rotary shaft, a second cutter arranged to be shifted from the first cutter in the second rotary shaft unit, and a second rotary shaft unit coupled to the second rotary shaft unit, A second rotating shaft module including a supporting member;
An extension pipe supporting unit coupled to the base body corresponding to a lower portion of the second rotary shaft module and rotatably supporting an extension pipe cut by the first and second cutters; And
And a gap adjusting unit coupled to the first rotary shaft unit for adjusting the distance between the first and second cutters and the coupling of the extension and contraction tube. The method according to claim 1,
The first rotary shaft unit includes a first rotary shaft to which the first cutter, the release preventing member and the departure prevention plate are coupled, a first universal joint coupled to the first rotary shaft, and a second rotary shaft coupled to the first universal joint, Lt; / RTI >
Wherein the second rotary shaft unit includes a second rotary shaft to which the second cutter and the support member are coupled, a second universal joint coupled to the second rotary shaft, and a second drive motor coupled to the second universal joint, Edge cutting device. The method according to claim 1,
The expansion pipe support unit includes a pair of first and second guide rails extending in a direction connecting central axes of the first rotary shaft unit and the second rotary shaft unit, and a pair of first and second guide rails coupled to the first and second guide rails Wherein the first and second guide rails are fixed to the base body by a guide screw which is screwed to the guide member in parallel with the first and second guide rails, And a motor for moving the guide member up and down by rotating the screw. The method according to claim 1,
Wherein the gap adjusting unit includes a slide unit coupled to the first rotating shaft unit and slidable with respect to the base body to lift and lower the first rotating shaft unit and a displacement generating unit for generating displacement in the slide unit, Cutting device. The method according to claim 1,
Wherein the gap between the release preventing member and the first cutter is adjusted corresponding to the size of the extension pipe.
KR1020180051032A 2018-05-03 2018-05-03 Apparatus for cutting edge of bellows pipe KR101874422B1 (en)

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Application Number Priority Date Filing Date Title
KR1020180051032A KR101874422B1 (en) 2018-05-03 2018-05-03 Apparatus for cutting edge of bellows pipe

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102064080B1 (en) * 2018-07-19 2020-01-08 임재천 Automatic Cutting Machine for Elliptical Tubular Shape

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993015884A1 (en) 1992-02-05 1993-08-19 Dale Truemner Apparatus for perforating corrugated tubing at high speeds and method of using same
JP2005111592A (en) 2003-10-06 2005-04-28 Sankoo Gas Seiki Kk Cutter for coated corrugated pipe and method for cutting coated corrugated pipe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993015884A1 (en) 1992-02-05 1993-08-19 Dale Truemner Apparatus for perforating corrugated tubing at high speeds and method of using same
JP2005111592A (en) 2003-10-06 2005-04-28 Sankoo Gas Seiki Kk Cutter for coated corrugated pipe and method for cutting coated corrugated pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102064080B1 (en) * 2018-07-19 2020-01-08 임재천 Automatic Cutting Machine for Elliptical Tubular Shape

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