KR20170056116A - Cutting apparatus of a pipe - Google Patents

Cutting apparatus of a pipe Download PDF

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Publication number
KR20170056116A
KR20170056116A KR1020150159280A KR20150159280A KR20170056116A KR 20170056116 A KR20170056116 A KR 20170056116A KR 1020150159280 A KR1020150159280 A KR 1020150159280A KR 20150159280 A KR20150159280 A KR 20150159280A KR 20170056116 A KR20170056116 A KR 20170056116A
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KR
South Korea
Prior art keywords
cutting
cutter
cutting blade
round bar
groove
Prior art date
Application number
KR1020150159280A
Other languages
Korean (ko)
Other versions
KR101776872B1 (en
Inventor
정재석
Original Assignee
호성기계공업주식회사
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Priority to KR1020150159280A priority Critical patent/KR101776872B1/en
Publication of KR20170056116A publication Critical patent/KR20170056116A/en
Application granted granted Critical
Publication of KR101776872B1 publication Critical patent/KR101776872B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
    • B23D15/04—Shearing machines or shearing devices cutting by blades which move parallel to themselves having only one moving blade
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D21/00—Machines or devices for shearing or cutting tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D23/00—Machines or devices for shearing or cutting profiled stock
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D33/00—Accessories for shearing machines or shearing devices
    • B23D33/02—Arrangements for holding, guiding, and/or feeding work during the operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D35/00—Tools for shearing machines or shearing devices; Holders or chucks for shearing tools
    • B23D35/008—Means for changing the cutting members

Abstract

The present invention relates to an annular-rod cutting apparatus having a cutting blade replacing structure, and more specifically, to an annular-rod cutting apparatus having a cutting blade replacing structure configured to cut an annular rod by a predetermined length continuously supplied while an upper cutter and a lower cutter alternatively operate up and down. The present invention can reduce inconvenience of replacing the cutting blade and reduce purchase costs by changing the shape of the cutting blade mounted on the upper cutter to cut the annular rod. The present invention includes a sub-frame (100), a cutting means (300), and an annular rod cutting device (10).

Description

[0001] CUTTING APPARATUS OF A PIPE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circular bar cutting apparatus having a cutting blade replacing structure, and more particularly, to a circular bar cutting apparatus having a cutting blade interchanging structure, It is possible to change the shape of the cutting blade which is mounted and cut the round bar, thereby eliminating the inconvenience of replacing the cutting blade and reducing the purchase cost.

In general, in order to cut a round bar into a predetermined length, conventionally, a round bar is cut using a saw blade after the bar bar is cut, but the above operation is troublesome and the operation time is long, There was a problem.

Accordingly, Japanese Patent Application No. 10-0807072 (Patent Document 1) discloses an apparatus for cutting the round bar, which comprises a frame and a round bar provided on an upper side of a receiving frame to be fastened to the frame, A round bar inflow part in which a fixing part formed with a first through hole communicating with the inlet is fixed; A second through hole communicating with the first through hole of the fixing portion fixed to the inside of the round bar inflow portion is formed, and the press bar is moved upward and downward by the press portion positioned in the upper direction and the elastic member provided in the lower portion, A cutting section for cutting a round bar moving in a frame direction; And a forward / backward moving portion that is provided on the frame so as to be movable forward and backward and selectively adjusts the length of a round bar cut by the cutout portion, wherein a first through hole of the fixing portion and a second through hole There is proposed a circular-rod cutting apparatus having a structure in which a groove having a depth is extended in the longitudinal direction.

However, in the round bar cutting device, in the case of the round bar inflow portion into which the round bar is introduced and the cut portion that cuts the incoming round bar by the upward and downward movement, the shape of the first through hole and the second through hole into which the round bar is introduced is " When the diameter of the round bar is not aligned with the through hole, it is troublesome to replace the mold itself constituting the cut portion with the round bar inflow portion corresponding to the diameter of the round bar, and workability and productivity are deteriorated .

The applicant of the present invention has proposed a circular bar cutting device having improved workability and productivity by not only replacing an upper cutter consumed while cutting a round bar for a long time, but also shortening the working time by presenting a patent document 10-1485332 Respectively.

In the circular bar cutting device 10 'for cutting a continuous round bar 20' as shown in FIGS. 1 to 3, A sub frame 100 'for guiding a round bar 20' continuously supplied through a through hole 110 'formed at the tip thereof; Is mounted on a mounting portion 120 'formed on one side of the sub-frame 100' and cuts the round bar 20 'by pressing a pressing member provided on the upper portion of the sub-frame 100' (300 '); A lower cutter 410 'mounted on the mounting portion 120' adjacent to the cutting means 300 'and corresponding to the upper cutter 310' of the cutting means 300 ' And a fixing means 400 'for fixing the round bar 20' cut by the upper and lower cutters 310 'and 410' so as not to flow. The cutting means 300 'and the fixing means 400' The cutting means 300 'and the fixing means 400' are integrally formed of the assembly 200 'so as to facilitate the replacement work of the upper and lower cutters 310' and 410 ' And can be drawn out to the mounting portion 120 'of the frame 100'.

However, since the cutting blade 600 'mounted on the upper cutter 310' of the cutting means 300 'is a portion where the cutting means directly rubs against the round bar when cutting the round bar continuously, It is inconvenient to disassemble the cutter surface and to remove the defective cutting blade and to assemble the new cutting blade.

In addition, by using only one side of the cutting blade mounted on the cutting means, there is a problem that working time and production cost are increased due to inconvenience of replacing immediately after deformation and frequent replacement.

[Patent Document 1]. Korean Registered Patent No. 10-0807072 - Round Bar Cutting Device (Registered Date Feb. 18, 2008) [Patent Document 2]. Korean Registered Patent No. 10-1485332 - Round Bar Cutting Device (Registered on January 16, 2015)

In order to solve the above-mentioned problems, the present invention is characterized in that the shape of the cutting blade is changed to a polygonal shape and the mounting groove of the upper cutter is formed corresponding to the shape of the cutting blade, So that the round bar can be cut through the other side.

Another object of the present invention is to provide a cutting blade having a plurality of cutter blades having different diameters by forming cutting grooves having different diameters so as to cut a round bar having various diameters by using one cutting blade, There is another purpose.

According to an aspect of the present invention,

A sub frame (100) for guiding a round bar (20) continuously supplied through a through hole (110) formed at a tip end thereof;

And the cutting blade 600 of the upper cutter 310 is pressed by the pressing member provided on the upper portion of the subframe 100 so that the cutting edge 600 (300) for cutting the substrate (20);

The lower cutter 410 is attached to the mounting portion 120 adjacent to the cutting means 300 and corresponds to the upper cutter 310 of the cutting means 300. The upper cutter 410 A cutting device (10) for cutting a continuous round bar (20), comprising: a fixing means (400) for fixing a round bar (20) cut by a bar (310, 410)

The cutting blade 600 mounted on the upper cutter 310 has a polygonal shape and has a cutter groove 610 formed on one side of the cutter blade 600, The revolver groove 350 of the cutter 310 is formed into a polygonal concave groove corresponding to the cutting blade 600 and the bolt member 600 is inserted into the revolver groove 350, 700 are coupled to the fastening holes 351 of the revolver groove 350 through the cutting blade 600 and are fixed to each other.

The cutting blade 600 and the revolver groove 350 are formed to have a polygonal shape of a triangle or an octagonal shape and are formed on both sides of the central portion of the cutting blade 600, And the through hole 620 is formed in the same horizontal direction as that of the through hole 620 so that the threaded portion of the bolt member 700 is inserted into the fastening hole 351 of the revolver groove 350, A head fitting groove 621 into which the head portion of the bolt member 700 is fitted is further formed.

The cutting blade 600 is formed on both sides of the through hole 620 to have a head fitting groove 621 in which the head portion of the bolt member 700 is fitted and the cutting blade 600 can be reversed from one side to the other side And one side of the cutter blade 600 is extended by 3 mm from the center horizontal line of the semicircle so that the cutter groove 610 has a height of 3 mm at the lower end of the cutter groove 610 And the guide surface 630 is further inclined at an angle of 45 [deg.] Outward from both ends of the center horizontal line of the center horizontal line.

According to the present invention, the cutting blade mounted on the upper cutter can be changed to the revolver type and replaced with the cutter groove on the other surface in the case of abrading the cutter groove on one side. Thus, by using all three sides of the triangle or octagon, It is possible to prevent financial damages according to the present invention.

Further, the cutting blade of the present invention can be used by turning one side and the other side upside down, so that the use of the cutter groove can be further improved by including the triangular or octagonal sides, thereby reducing the defect rate due to round cutting Thereby reducing work time and production cost.

In addition, since the cutting blade of the present invention is rapidly changed to the cutter groove of the diameter according to the diameter of the cutter groove formed on each surface of the cutting blade, Which is a very useful invention.

FIG. 1 is a perspective view of an assembly of a conventional circular-
2 is a configuration diagram of a conventional round bar cutting device.
Fig. 3 is a cut-away state view of a conventional round bar cutting apparatus. Fig.
4 is a cut-away configuration diagram of a round bar cutting apparatus according to the present invention.
5A and 5B are sectional structural views showing an operating state of the cutting means according to the present invention.
6 is an assembly view of a cutting blade and an upper cutter, which are the constituent elements of the present invention;
7A and 7B are front views showing an embodiment of a cutting blade according to the present invention.

A round bar cutting device having a cutting blade replacing structure according to the present invention is a bar bar cutting device having a cutter blade cutting structure for cutting a round bar which is mounted on the upper cutter to cut a round bar in which a top bar cutter and a bottom bar bar, The shape of the blade can be changed so that inconvenience caused by the replacement of the cutting blade can be solved and the purchase cost can be reduced.

First, the basic structure of the round bar cutting device 10 will be described before describing the constitution of each part of the present invention.

The subframe 100 shown in FIG. 4 is provided on one side of a main frame (not shown) to guide the round bar 20 continuously inserted through the through holes 110, The round bar 20 is cut.

At this time, the main frame (not shown) is installed on one side of the main frame through power transmission by the interlocking of driving devices, and at the same time, by the pressing force of the pressing member 40 located on the upper portion of the sub frame 100 The upper cutter 310 of the cutting means 300 is pressed to cut the round bar 20 passing through the sub frame 100. This process is repeated to continuously feed the round bar 20 to a desired length As shown in FIG.

More specifically, the cutting means 300 includes an upper cutter 310 for cutting the round bar 20, a guide bracket 320 having a guide hole for guiding the upper cutter 310 up and down, A first lift which is provided on both sides of the guide bracket 320 and pushes up both sides of the upper cutter 310 so that the upper cutter 310 is returned to the upper side in a state in which the pressing force of the pressing member 40 is released, (330).

The cutting means 300 includes a guide bracket 320 vertically installed on one side of an upper portion of a lower fixing die 430 which is a component of the fixing means 400, And the upper cutter 310 is inserted into the hole.

At this time, the first lift (330) pushes the upper cutter (310) always upward on both sides of the guide bracket (320) so that the pressing member (40) The upper cutter 310 is returned to its original position so that the upper cutter 310 can pass under the upper cutter 310.

The fixing means 400 is divided into an upper fixing die 420 and a lower fixing die 430 having round bar grooves 420a and 430a formed on upper and lower surfaces thereof to allow the round bar 20 to pass therethrough, The upper fixing die 420 is brought into close contact with the lower fixing die 430 to fix the round bar 20 by pressing the clamp 500 provided at the tip end of the upper fixing die 420. [

At this time, the upper fixing die 420 is moved up and down in a state where the pressing force of the clamp 500 is released below the upper fixing die 420, so that the upper fixing die 420 The upper and lower fixing dies 420 and 430 are spaced apart from each other so that the round bar 20 can easily pass through.

The clamp 500 is configured such that the locking bar 520 provided at the upper end of the sub frame 100 is pivoted to the clamp bracket in accordance with the projecting and retracting of the rod of the hydraulic cylinder and presses the upper portion of the upper fixing die 420 And a locking bar 520.

The assembly 200 constructed as described above is pushed into the mounting portion 120 of the subframe 100 in the lateral direction and fixed to the subframe 100 via the lower fixing die 430 The assembly 200 can be removed from the subframe 100 and replaced.

5A, the pressing member 40 presses the upper surface of the upper cutter 310 downward to cut the round bar 20 located at the lower side, and then the pressing member 40 When the upper cutter 310 releases the pressing force of the upper cutter 310, the upper cutter 310 is pulled upward by the first lifts 330 provided on both sides of the guide bracket 320 to return to the home position .

The upper cutter 310 is provided with a cutting blade 600 that directly contacts and cuts the round bar 20 so that the upper cutter 310 is lowered by the pressure of the pressing member 40, 600 push the round bar 20 downward to cut it.

In the present invention, the shape of the cutting blade 600 is changed to have a polygonal shape of a triangle or an octagon, and a revolver (revolver) To the upper cutter 310 to cut the round bar 20.

6, the cutting blade 600 mounted on the upper cutter 310 has a polygonal shape and is integrally formed with a cutter groove 610 formed on one side of the cutting blade 600, The revolver groove 350 of the upper cutter 310 to be fitted is formed into a concave groove of polygonal shape corresponding to the cutting blade 600.

The bolt member 700 is inserted into the fastening hole 351 of the revolver groove 350 through the cutting blade 600 while the cutting blade 600 is inserted into the revolver groove 350, .

The through holes 620 formed on both sides of the central portion of the cutting blade 600 are formed in the cutting blade body with the same horizontal direction as each one of the sides on which the cutter grooves 610 are formed, The threaded portion of the bolt member 700 can be inserted into the fastening hole 351 of the revolver groove 350 through the through hole 620 formed in the same horizontal direction as the one surface to be mounted, It is possible to increase convenience.

At this time, a head fitting groove 621 is formed at one side of the through hole 620 of the cutting blade 600 to receive the head portion of the bolt member 700. The head portion of the bolt member 700 has a cutting edge 600, it is preferable to use any one of a bolt of a wrench bolt, a flat head bolt, and a flat head bolt as the bolt member 700.

According to another embodiment of the present invention, the cutting blade 600 is formed with head fitting grooves 621 on both sides of the through hole 620 to receive the head portion of the bolt member 700, Including those that can be mounted flipped on one side and the other side.

As shown in FIGS. 7A and 7B, the cutting blade 600 and the revolver groove 350 of the present invention have a polygonal shape of any one of triangular to octagonal. The cutting blade 600 preferably has a hexagonal shape. It is good to use.

The reason why the cutting blade 600 is based on a hexagonal shape is that the triangular to quadrangular shape is suitable for cutting a round bar having a large diameter because the length of one side is long so that the diameter of the cutter groove can be relatively large, Since the length of one surface is comparatively short and the diameter of the cutter groove can be made small, it is suitable for cutting a small round bar. Therefore, it is preferable to use a hexagonal cutting edge suitable for cutting an intermediate round bar.

The cutter grooves 610 of the cutting blade 600 may be formed to have one diameter on each surface or have different diameters on the respective surfaces.

That is, the cutter grooves 610 formed on the respective surfaces of the cutting blade 600 are formed to have a single diameter, and when the round bar 20 to be continuously fed is cut, So that the round bar 20 of the same diameter is continuously cut.

As an example, it is possible to form the small diameter on one surface, the medium diameter on the other surface, and the large diameter on the other surface in accordance with various diameters of the round bar 20, It is also possible to rotate the cutting blade 600 in the revolver groove 350 so that the cutter blade 600 having a cutter groove 610 corresponding to the diameter of the round bar is positioned according to the diameter of the round bar 20.

The cutting blade 600 can be used by reversing the other surface of the cutting blade 600. It is also possible to cut the round bar 20 into the cutter groove 610 by using the cutter groove 610 of one side as described above, .

This is because when the cutter groove 610 of the cutting blade 600 cuts the round bar 20, the load for pressing and cutting the round bar 20 fixed to the lower cutter 410 is lower than that of the lower cutter 410 The one end of the cutter groove 610 is deformed earlier than the other portion of the cutter groove 610 and the other portion of the cutter groove 610 in which the deformation is generated is deformed So that the cutting blade 600 can be used when the cutting blade 600 is turned upside down.

The cutter groove 610 of the cutting blade 600 is formed in a semicircle shape so that a semicircular circle of the round bar 20 is inserted into the cutter groove 610. One side of the cutter blade 600 is extended by 3 mm further than the center horizontal line of the semicircle, And a guide surface 630 is further formed so as to be inclined to within 45 degrees outward from both ends of the center horizontal line of the height of 3 mm at the bottom of the groove 610.

When the round bar 20 fixed to the lower cutter 410 is lowered by the pressing means 40 by the upper cutter 310, the round bar 20 is moved along the guide surface 630 600 in the cutter groove 610 to perform the cutting operation.

Although the preferred embodiments of the present invention have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. .

10. Round bar cutting device 20. Round bars
40. Pressure member 100. Sub-
200. Assembly 300. Cutting means
310. Top cutter 350. Revolver home
351. Fastening hole 400. Fastening means
410. Lower cutter 500. Clamp
600. Cutting blade 610. Cutter groove
620. Through hole 621. Head fitting groove
630. Guide face 700. Bolt member

Claims (6)

A sub frame (100) for guiding a round bar (20) continuously supplied through a through hole (110) formed at a tip end thereof;
And the cutting blade 600 of the upper cutter 310 is pressed by the pressing member provided on the upper portion of the subframe 100 so that the cutting edge 600 (300) for cutting the substrate (20);
The lower cutter 410 is attached to the mounting portion 120 adjacent to the cutting means 300 and corresponds to the upper cutter 310 of the cutting means 300. The upper cutter 410 A cutting device (10) for cutting a continuous round bar (20), comprising: a fixing means (400) for fixing a round bar (20) cut by a bar (310, 410)
The cutting blade 600 mounted on the upper cutter 310 has a polygonal shape and has a cutter groove 610 formed on one surface thereof. The cutter blade 600 has an upper cutter 600, The revolver groove 350 of the bolt member 700 is formed in a polygonal concave groove corresponding to the cutting blade 600 and the bolt member 700 is inserted into the revolver groove 350, Is coupled to the fastening hole (351) of the revolver groove (350) through the cutting blade (600) and fixed to each other. The circular-rod cutting device according to claim 1, wherein the cutting blade (600) and the revolver groove (350) are formed to have a polygon of any one of triangular to octagonal. A through hole (620) is formed on both sides of the central portion of the cutting blade (600) and has the same horizontal direction as that of each of the cutter grooves (610), and the threaded portion of the bolt member And a head fitting groove (621) is formed at one side of the through hole (620) for fitting the bolt member (700) into the fastening hole (351) of the revolver groove (350) Round bar cutting device with blade replacement structure. The cutting blade 600 according to claim 3, wherein the cutting blade 600 is formed with head fitting grooves 621 on both sides of the through hole 620 to receive the head portion of the bolt member 700, Wherein the cutter blade is rotatably mounted on the cutter blade. The cutting blade according to claim 1, wherein the cutter groove (610) of the cutting blade (600) has a semicircular shape in which a semicircle of the round bar (20) is inserted, wherein one side of the cutting blade (600) , And a guide surface (630) is further formed so as to be inclined 5 占 to 45 占 outward from both ends of a central horizontal line of a height of 3 mm at the lower end of the cutter groove (610). The cutting device according to claim 1, wherein the cutter grooves (610) of the cutting blade (600) are formed to have different diameters.
KR1020150159280A 2015-11-13 2015-11-13 Cutting apparatus of a pipe KR101776872B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150159280A KR101776872B1 (en) 2015-11-13 2015-11-13 Cutting apparatus of a pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150159280A KR101776872B1 (en) 2015-11-13 2015-11-13 Cutting apparatus of a pipe

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KR20170056116A true KR20170056116A (en) 2017-05-23
KR101776872B1 KR101776872B1 (en) 2017-09-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107999882A (en) * 2017-11-29 2018-05-08 重庆北金人防工程设备有限公司 A kind of tension rib shear for effectively improving stability and its manufacture method
CN108480750A (en) * 2018-02-09 2018-09-04 高佳 A kind of cutter device of adjustable building steel tube Cutting Length
CN109719536A (en) * 2019-02-23 2019-05-07 海盐展翔精密成形技术有限公司 A kind of movable blades being convenient for changing
KR20190067606A (en) * 2017-12-07 2019-06-17 신국수 Tube Cutting Apparatus Having Preventing Structure OF Tube Transform

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003334718A (en) * 2002-05-13 2003-11-25 Tairiku:Kk Cutting blade structure in reinforcing steel cutting device
KR101485332B1 (en) * 2013-12-20 2015-01-22 호성기계공업주식회사 Cutting apparatus of a Round Bar

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107999882A (en) * 2017-11-29 2018-05-08 重庆北金人防工程设备有限公司 A kind of tension rib shear for effectively improving stability and its manufacture method
CN107999882B (en) * 2017-11-29 2019-04-05 重庆北金人防工程设备有限公司 A kind of tension rib shear effectively improving stability and its manufacturing method
KR20190067606A (en) * 2017-12-07 2019-06-17 신국수 Tube Cutting Apparatus Having Preventing Structure OF Tube Transform
CN108480750A (en) * 2018-02-09 2018-09-04 高佳 A kind of cutter device of adjustable building steel tube Cutting Length
CN109719536A (en) * 2019-02-23 2019-05-07 海盐展翔精密成形技术有限公司 A kind of movable blades being convenient for changing

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