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WO2018092965A1 - Flexible mandrel for forming pipe mold - Google Patents

Flexible mandrel for forming pipe mold Download PDF

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Publication number
WO2018092965A1
WO2018092965A1 PCT/KR2016/013936 KR2016013936W WO2018092965A1 WO 2018092965 A1 WO2018092965 A1 WO 2018092965A1 KR 2016013936 W KR2016013936 W KR 2016013936W WO 2018092965 A1 WO2018092965 A1 WO 2018092965A1
Authority
WO
WIPO (PCT)
Prior art keywords
link
disks
flexible mandrel
pipe mold
forming
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2016/013936
Other languages
French (fr)
Korean (ko)
Inventor
장동석
박종배
김성민
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongyeun Co Ltd
Original Assignee
Dongyeun Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongyeun Co Ltd filed Critical Dongyeun Co Ltd
Publication of WO2018092965A1 publication Critical patent/WO2018092965A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D9/00—Bending tubes using mandrels or the like
    • B21D9/01—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D9/00—Bending tubes using mandrels or the like
    • B21D9/05—Bending tubes using mandrels or the like co-operating with forming members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D9/00—Bending tubes using mandrels or the like
    • B21D9/16—Auxiliary equipment, e.g. machines for filling tubes with sand

Definitions

  • the present invention relates to a flexible mandrel for pipe mold forming.
  • Parts for bending a pipe mold into a predetermined shape and shape are used for automobile trunk leads, various mechanical devices or various steel furniture.
  • a bending machine is used, and a bending operation is generally performed by inserting a mandrel into the pipe to prevent the bending portion of the pipe from sinking.
  • 1 is a schematic view showing a conventional articulated mandrel.
  • the articulated mandrel 100 of the prior art Korean Patent Publication No. 1471123 has a plurality of blocks (110) connected in a band shape and capable of bending, and located at an end of the blocks (110). Bars 130 (bar) connected to the block 110, and the link 120 overlapping the adjacent blocks of the block 110 arranged in a line, the link 120 and the block 110 It includes a pin 140 penetrating.
  • both ends of the plurality of links 120 connecting the plurality of blocks 110 to each other are fixed by the pins 140 passing through the link 120 and the block 110, thereby providing a plurality of blocks 110.
  • an object of the present invention is to adjust the spacing between a plurality of disks and can guide the plurality of disks arranged in a curved arrangement in the state where the spacing is adjusted between the plurality of disks.
  • the flexible mandrel for forming a pipe mold according to the present invention has an inlet groove formed at a front side thereof, and a screw groove formed at a rear side thereof in communication with the inlet groove and having a diameter larger than that of the inlet groove formed at the front of the bar.
  • a plurality of disks installed spaced apart from each other by a predetermined distance in the front and rear directions, link shafts inserted through the plurality of disks in the front and rear directions, and coupled to the rear ends inserted into the inlet grooves of the link shafts and screwed to the screw grooves.
  • a link chain including a first link cap and a second link cap coupled to a front end of the link shaft, the link chain adjusting a gap between the plurality of disks according to the extent that the link shaft protrudes forward of the inlet groove.
  • An elastic portion installed between the disks to apply elasticity and a disk guide portion for guiding the plurality of disks to be arranged in a curved shape. And that is characterized.
  • the disk guide is a front end is coupled to the upper portion of the second link cap and the rear end of the pull line is inserted through the top of the plurality of disks and the top of the bar, and the pull roll is further wound the rear end of the pull line It is characterized by including.
  • the disk guide portion of the front end is coupled to the lower portion of the second link cap and the rear end of the control line is inserted through the lower portion and the lower portion of the bar further, and the control roll is wound around the rear end of the control line It is characterized by including.
  • the elastic part may further include a plurality of low elastic compression springs respectively installed between the upper portions of the plurality of disks, and a high elastic compression spring having higher elasticity than the low elastic compression springs, respectively installed between the lower portions of the plurality of disks. It is characterized by including.
  • the link chain is characterized in that it further comprises a link handle coupled to the rear end of the first link cap.
  • the flexible mandrel for forming a pipe mold according to the present invention can adjust the spacing between the plurality of disks according to the extent that the link shaft protrudes forward of the inlet groove, so that the spacing between the plurality of disks can be adjusted and between the plurality of disks.
  • 1 is a schematic view showing a conventional articulated mandrel.
  • FIG. 2 is a cross-sectional view showing a flexible mandrel for forming a pipe mold according to Embodiment 1 of the present invention.
  • FIG 3 is an operation view showing a state in which the distance between the plurality of disks of the flexible mandrel for pipe mold forming according to the first embodiment of the present invention is adjusted.
  • Figure 4 is an operation view showing a state in which a plurality of disks of the flexible mandrel for pipe mold forming according to the first embodiment of the present invention is arranged in a curved shape by the disguiding portion.
  • Figure 5 is a cross-sectional view showing a flexible mandrel for forming a pipe mold according to a second embodiment of the present invention.
  • FIG. 6 is a cross-sectional view showing a flexible mandrel for forming a pipe mold according to Embodiment 3 of the present invention.
  • FIG. 7 is a cross-sectional view showing a flexible mandrel for forming a pipe mold according to Embodiment 4 of the present invention.
  • FIG. 2 is a cross-sectional view showing a flexible mandrel 1000 for pipe mold forming according to Embodiment 1 of the present invention
  • FIG. 3 is a plurality of disks 200 of the flexible mandrel 1000 for pipe mold forming according to Embodiment 1 of the present invention. This is an operation diagram that shows the state that the gap is adjusted between).
  • the flexible mandrel 1000 for forming a pipe mold according to the first embodiment of the present invention includes a bar 100, a plurality of disks 200, a link chain 300, an elastic part 400, and a disk guide. A portion 500 is included.
  • the bar 100 is a basic body of the present invention, the inlet groove 110 is formed in the front, the screw groove which is communicated with the inlet groove 110 in the rear and the diameter is wider than the inlet groove (110) ( 120) is formed.
  • the inlet groove 110 is recessed in the front center of the bar 100
  • the screw groove 120 is formed in the rear center of the bar 100.
  • the plurality of disks 200 may be spaced apart from each other in the front and rear directions in front and rear of the bar 100, and may be formed in a disk shape, but the present invention is not limited thereto.
  • the link chain 300 connects the plurality of disks 200 to each other and adjusts a gap between the plurality of disks 200, the link shaft 310, the first link cap 320, and the second link cap. 330.
  • the link shaft 310 is inserted through the center axis of the plurality of disks 200 in the front and rear direction, may be made of a bendable metal material, more specifically, may be made of aluminum material.
  • the first link cap 320 is coupled to the rear end inserted into the inlet groove 110 of the link shaft 310 and screwed to the screw groove 120. Referring to FIG. 3, the first link cap 320 is moved toward the front of the screw groove 120 so that the link shaft 310 further protrudes toward the front of the inlet groove 110 or the screw groove ( It is moved to the rear of the 120 so that the link shaft 310 is inserted into the inlet groove 110 to reduce the degree of protruding forward of the inlet groove (110).
  • the second link cap 330 is coupled to the front end of the link shaft 310.
  • the link chain 300 may adjust the distance between the plurality of disks 200, according to the extent that the link shaft 310 protrudes in front of the inlet groove 110, at this time, the link If the shaft 310 is further protruded toward the front of the inlet groove 110, the spacing between the plurality of disks 200 will be widened, and if the link shaft 310 is inserted into the inlet groove 110, The spacing between the disks 200 will be narrowed.
  • the elastic unit 400 is installed between the plurality of disks 200 to apply elasticity to serve to maintain a predetermined interval between the plurality of disks (200).
  • the disk guide part 500 may guide the plurality of disks 200 to be arranged in a curved shape by eccentrically pulling the plurality of disks 200.
  • the flexible mandrel 1000 for forming a pipe mold according to the present invention may adjust the distance between the plurality of disks 200 according to the extent that the link shaft 310 protrudes forward of the inlet groove 110. It is possible to adjust the spacing between the disks 200 of the plurality of disks 200 has the advantage of guiding the plurality of disks 200 to be arranged in a curved state in which the spacing is adjusted.
  • the flexible mandrel 1000 for forming the pipe mold may further include a connection pipe 150 covering the screw groove 120.
  • FIG. 4 is an operation diagram showing a state in which a plurality of disks 200 of the flexible mandrel 1000 for forming a pipe mold according to the first embodiment of the present invention are arranged in a curved shape by a disguiding part.
  • the disc guide part 500 may further include a pulling line 510 and a pulling roll 520.
  • the pulling line 510 is a front end is coupled to the upper portion of the second link cap 330, the rear end is inserted through the top of the plurality of disks 200 and the top of the bar 100.
  • the pulling roll 520 is the rear end of the pulling line 510 is wound.
  • the pulling line 510 is wound around the pulling roll 520 and the pulling line 510 is pulled backward, an upper portion of the second link cap 330 and an upper portion of the plurality of disks 200.
  • the second link cap 330 and the plurality of disks 200 are arranged in a curved shape while being eccentrically pulled, and the link shaft 310 is also easily bent in a shape corresponding to the curved line.
  • FIG 5 is a cross-sectional view showing a flexible mandrel 1000 for forming a pipe mold according to Embodiment 2 of the present invention.
  • the disk guide part 500 may further include an adjusting line 530 and an adjusting roll 540. Can be.
  • the control line 530 is the front end is coupled to the lower portion of the second link cap 330 and the rear end is inserted through the lower portion of the plurality of disks 200 and the lower portion of the bar 100.
  • the control roll 540 is the rear end of the control line 530 is wound.
  • the adjusting line 530 is wound around the adjusting roll 540 and the adjusting line 530 is rearward.
  • the gap between the upper portion of the plurality of disks 200 is adjusted to be narrower.
  • FIG. 6 is a cross-sectional view showing a flexible mandrel 1000 for forming a pipe mold according to Embodiment 3 of the present invention.
  • the elastic part 400 further includes a low elastic compression spring 410 and a high elastic compression spring 420. can do.
  • the low elastic compression springs 410 are respectively installed between the upper portion of the plurality of disks 200, the high elastic compression springs 420 are respectively installed between the lower portion of the plurality of disks 200 and the low elastic compression It has a higher elasticity than the spring 410.
  • the flexible mandrel 1000 for forming a pipe mold according to the third embodiment of the present invention may be formed by the elastic difference between the low elastic compression spring 410 and the high elastic compression spring 420.
  • the space between the upper portion maintains a structure that is narrower than the space between the lower portion of the plurality of disks 200, when pulling the pull line 510, even if you apply less force than the pull line 510 Can pull.
  • FIG. 7 is a cross-sectional view showing a flexible mandrel 1000 for forming a pipe mold according to Embodiment 3 of the present invention.
  • the link chain 300 is coupled to a rear end of the first link cap 320. ) May be further included.
  • the link handle 340 is coupled to the rear end of the first link cap 320 in the state in which the connection pipe 150 is removed to manually adjust the degree of movement of the first link cap 320 in the front and rear directions. Play a role.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The present invention relates to a flexible mandrel for forming a pipe mold, the flexible mandrel comprising: a bar which has an insertion groove formed on the front part thereof, and a screw groove communicating with the insertion groove and having a diameter wider than that of the insertion groove formed on the rear part thereof; a plurality of discs which are installed on the front part of the bar so as to be spaced apart from each other at regular intervals along the front/rear direction; a link chain which comprises a link shaft penetratingly inserted in the plurality of discs in the front/rear direction, a first link cap coupling to the link shaft rear end inserted in the insertion groove and screw-coupling to the screw groove, and a second link cap coupling to the link shaft front end, wherein the link chain adjusts the intervals between the plurality of discs according to the degree of protrusion of the link shaft toward the front part of the insertion groove; an elastic part which is installed between the plurality of discs and applies elasticity; and a disc guiding part which is capable of guiding so that the plurality of discs are arranged on a curve.

Description

파이프 몰드 포밍용 플렉시블 맨드릴Flexible Mandrel for Pipe Mold Forming

본 발명은 파이프 몰드 포밍용 플렉시블 맨드릴에 관한 것이다.The present invention relates to a flexible mandrel for pipe mold forming.

자동차 트렁크 리드, 각종 기계기구 또는 각종 철제가구에는 파이프 몰드를 소정 형상과 모양으로 벤딩한 부품들이 사용된다.Parts for bending a pipe mold into a predetermined shape and shape are used for automobile trunk leads, various mechanical devices or various steel furniture.

이 때, 파이프 몰드를 소정의 형상과 모양으로 벤딩할 때, 벤딩기를 사용하며, 파이프의 벤딩부위가 함몰되는 것을 방지하기 위하여 파이프의 내부에 맨드릴을 넣어서 벤딩작업을 하는 것이 일반적이다.At this time, when the pipe mold is bent in a predetermined shape and shape, a bending machine is used, and a bending operation is generally performed by inserting a mandrel into the pipe to prevent the bending portion of the pipe from sinking.

도 1은 종래의 다관절 맨드릴을 나타낸 개략도이다.1 is a schematic view showing a conventional articulated mandrel.

도 1에 도시된 바와 같이, 종래기술 한국공개특허 제1471123호의 다관절 맨드릴(100)은 밴드 모양이 되며 굽힘이 가능하도록 연결된 다수의 블록(110)과, 상기 블록(110) 중 종단부에 위치하는 블록(110)에 연결된 바(130, bar)와, 일렬로 나열되는 상기 블록(110) 중 인접하는 양측의 블록에 중첩되는 링크(120)와, 상기 링크(120)와 상기 블록(110)을 관통하는 핀(140)을 포함한다.As shown in Figure 1, the articulated mandrel 100 of the prior art Korean Patent Publication No. 1471123 has a plurality of blocks (110) connected in a band shape and capable of bending, and located at an end of the blocks (110). Bars 130 (bar) connected to the block 110, and the link 120 overlapping the adjacent blocks of the block 110 arranged in a line, the link 120 and the block 110 It includes a pin 140 penetrating.

그러나 종래기술은 다수의 블록(110)을 서로 연결하는 다수의 링크(120)의 양단이 링크(120)와 블록(110)을 관통하는 핀(140)에 의해 고정됨으로서, 다수의 블록(110) 간에 간격 조절이 불가능하여 전체적인 길이방향 길이 조절이 불가능한 문제점이 있었다.However, in the related art, both ends of the plurality of links 120 connecting the plurality of blocks 110 to each other are fixed by the pins 140 passing through the link 120 and the block 110, thereby providing a plurality of blocks 110. There was a problem in that it is impossible to adjust the overall longitudinal length because the interval is not adjustable.

본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로, 본 발명의 목적은 다수의 디스크 간에 간격 조절이 가능하며 다수의 디스크 간에 간격이 조절된 상태에서 다수의 디스크가 곡선상으로 배열되도록 안내할 수 있는 파이프 몰드 포밍용 플렉시블 맨드릴을 제공하기 위한 것이다.The present invention has been made to solve the above problems, an object of the present invention is to adjust the spacing between a plurality of disks and can guide the plurality of disks arranged in a curved arrangement in the state where the spacing is adjusted between the plurality of disks. To provide a flexible mandrel for forming a pipe mold.

이에 따라, 본 발명에 따른 파이프 몰드 포밍용 플렉시블 맨드릴은 전방에 인입홈이 형성되며, 후방에 상기 인입홈과 연통되며 상기 인입홈보다 직경이 넓게 형성되는 나사홈이 형성되는 바, 상기 바의 전방에 전후방향으로 서로 일정간격 이격되게 설치되는 다수의 디스크, 상기 다수의 디스크에 전후방향으로 관통 삽입되는 링크축과, 상기 링크축의 인입홈에 삽입된 후단에 결합되며 상기 나사홈에 나사결합되는 제1링크캡과, 상기 링크축의 전단에 결합되는 제2링크캡으로 포함하며, 상기 링크축이 상기 인입홈의 전방으로 돌출되는 정도에 따라 상기 다수의 디스크 간에 간격을 조절하는 링크체인, 상기 다수의 디스크 사이에 설치되어 탄성을 가하는 탄성부 및 상기 다수의 디스크가 곡선상으로 배열되도록 안내할 수 있는 디스크안내부를 포함하는 것을 특징으로 한다.Accordingly, the flexible mandrel for forming a pipe mold according to the present invention has an inlet groove formed at a front side thereof, and a screw groove formed at a rear side thereof in communication with the inlet groove and having a diameter larger than that of the inlet groove formed at the front of the bar. A plurality of disks installed spaced apart from each other by a predetermined distance in the front and rear directions, link shafts inserted through the plurality of disks in the front and rear directions, and coupled to the rear ends inserted into the inlet grooves of the link shafts and screwed to the screw grooves. A link chain including a first link cap and a second link cap coupled to a front end of the link shaft, the link chain adjusting a gap between the plurality of disks according to the extent that the link shaft protrudes forward of the inlet groove. An elastic portion installed between the disks to apply elasticity and a disk guide portion for guiding the plurality of disks to be arranged in a curved shape. And that is characterized.

또한, 상기 디스크안내부는 전단이 상기 제2링크캡의 상부에 결합되며 후단이 상기 다수의 디스크의 상부와 바의 상부에 관통 삽입되는 당김줄과, 상기 당김줄의 후단이 권취되는 당김롤을 더 포함하는 것을 특징으로 한다.In addition, the disk guide is a front end is coupled to the upper portion of the second link cap and the rear end of the pull line is inserted through the top of the plurality of disks and the top of the bar, and the pull roll is further wound the rear end of the pull line It is characterized by including.

또한, 상기 디스크안내부는 전단이 상기 제2링크캡의 하부에 결합되며 후단이 상기 다수의 디스크의 하부와 바의 하부에 관통 삽입되는 조절줄과, 상기 조절줄의 후단이 권취되는 조절롤을 더 포함하는 것을 특징으로 한다.In addition, the disk guide portion of the front end is coupled to the lower portion of the second link cap and the rear end of the control line is inserted through the lower portion and the lower portion of the bar further, and the control roll is wound around the rear end of the control line It is characterized by including.

또한, 상기 탄성부는 상기 다수의 디스크의 상부 사이에 각각 설치되는 다수의 저탄성압축스프링과, 상기 다수의 디스크의 하부 사이에 각각 설치되며 상기 저탄성압축스프링보다 높은 탄성을 가진 고탄성압축스프링을 더 포함하는 것을 특징으로 한다.The elastic part may further include a plurality of low elastic compression springs respectively installed between the upper portions of the plurality of disks, and a high elastic compression spring having higher elasticity than the low elastic compression springs, respectively installed between the lower portions of the plurality of disks. It is characterized by including.

또한, 상기 링크체인은 상기 제1링크캡의 후단에 결합되는 링크손잡이를 더 포함하는 것을 특징으로 한다.In addition, the link chain is characterized in that it further comprises a link handle coupled to the rear end of the first link cap.

이에 따라, 본 발명에 따른 파이프 몰드 포밍용 플렉시블 맨드릴은 링크축이 인입홈의 전방으로 돌출되는 정도에 따라 다수의 디스크 간에 간격을 조절할 수 있으므로, 다수의 디스크 간에 간격 조절이 가능하며 다수의 디스크 간에 간격이 조절된 상태에서 다수의 디스크가 곡선상으로 배열되도록 안내할 수 있는 장점이 있다.Accordingly, the flexible mandrel for forming a pipe mold according to the present invention can adjust the spacing between the plurality of disks according to the extent that the link shaft protrudes forward of the inlet groove, so that the spacing between the plurality of disks can be adjusted and between the plurality of disks. There is an advantage of guiding the plurality of disks arranged in a curved line with the spacing adjusted.

도 1은 종래의 다관절 맨드릴을 나타낸 개략도.1 is a schematic view showing a conventional articulated mandrel.

도 2는 본 발명의 실시예 1에 따른 파이프 몰드 포밍용 플렉시블 맨드릴을 나타낸 단면도.2 is a cross-sectional view showing a flexible mandrel for forming a pipe mold according to Embodiment 1 of the present invention.

도 3은 본 발명의 실시예 1에 따른 파이프 몰드 포밍용 플렉시블 맨드릴의 다수의 디스크 간에 간격이 조절되는 상태를 나타낸 작동도.3 is an operation view showing a state in which the distance between the plurality of disks of the flexible mandrel for pipe mold forming according to the first embodiment of the present invention is adjusted.

도 4는 본 발명의 실시예 1에 따른 파이프 몰드 포밍용 플렉시블 맨드릴의 다수의 디스크가 디스안내부에 의해 곡선상으로 배치되는 상태를 나타낸 작동도.Figure 4 is an operation view showing a state in which a plurality of disks of the flexible mandrel for pipe mold forming according to the first embodiment of the present invention is arranged in a curved shape by the disguiding portion.

도 5는 본 발명의 실시예 2에 따른 파이프 몰드 포밍용 플렉시블 맨드릴을 나타낸 단면도.Figure 5 is a cross-sectional view showing a flexible mandrel for forming a pipe mold according to a second embodiment of the present invention.

도 6은 본 발명의 실시예 3에 따른 파이프 몰드 포밍용 플렉시블 맨드릴을 나타낸 단면도.6 is a cross-sectional view showing a flexible mandrel for forming a pipe mold according to Embodiment 3 of the present invention.

도 7은 본 발명의 실시예 4에 따른 파이프 몰드 포밍용 플렉시블 맨드릴을 나타낸 단면도.7 is a cross-sectional view showing a flexible mandrel for forming a pipe mold according to Embodiment 4 of the present invention.

<부호의 설명><Description of the code>

1000 : 본 발명에 따른 파이프 몰드 포밍용 플렉시블 맨드릴1000: flexible mandrel for forming a pipe mold according to the present invention

100 : 바 100: bar

110 : 인입홈 110: Inlet Home

120 : 나사홈 120: screw groove

150 : 연결관 150 connector

200 : 디스크 200: disk

300 : 링크체인 300: link chain

310 : 링크축 310: link axis

320 : 제1링크캡 320: first link cap

330 : 제2링크캡 330: second link cap

340 : 링크손잡이 340: Link handle

400 : 탄성부 400: elastic portion

410 : 저탄성압축스프링 410: low elastic compression spring

420 : 고탄성압축스프링 420: high elastic compression spring

500 : 디스크안내부 500: disc guide

510 : 당김줄 510: pulling string

520 : 당김롤 520: pulling roll

530 : 조절줄 530: control bar

540 : 조절롤 540: adjusting roll

이하, 본 발명의 기술적 사상을 첨부된 도면을 사용하여 더욱 구체적으로 설명한다.Hereinafter, the technical spirit of the present invention will be described in more detail with reference to the accompanying drawings.

첨부된 도면은 본 발명의 기술적 사상을 더욱 구체적으로 설명하기 위하여 도시한 일예에 불과하므로 본 발명의 기술적 사상이 첨부된 도면의 형태에 한정되는 것은 아니다.The accompanying drawings are only examples to illustrate the technical idea of the present invention in more detail, and thus the technical idea of the present invention is not limited to the forms of the accompanying drawings.

<< 실시예Example 1> 1>

도 2는 본 발명의 실시예 1에 따른 파이프 몰드 포밍용 플렉시블 맨드릴(1000)을 나타낸 단면도, 도 3은 본 발명의 실시예 1에 따른 파이프 몰드 포밍용 플렉시블 맨드릴(1000)의 다수의 디스크(200) 간에 간격이 조절되는 상태를 나타낸 작동도이다.2 is a cross-sectional view showing a flexible mandrel 1000 for pipe mold forming according to Embodiment 1 of the present invention, and FIG. 3 is a plurality of disks 200 of the flexible mandrel 1000 for pipe mold forming according to Embodiment 1 of the present invention. This is an operation diagram that shows the state that the gap is adjusted between).

도 2를 참조하면, 본 발명의 실시예 1에 따른 파이프 몰드 포밍용 플렉시블 맨드릴(1000)은 바(100), 다수의 디스크(200), 링크체인(300), 탄성부(400), 디스크안내부(500)를 포함한다.Referring to FIG. 2, the flexible mandrel 1000 for forming a pipe mold according to the first embodiment of the present invention includes a bar 100, a plurality of disks 200, a link chain 300, an elastic part 400, and a disk guide. A portion 500 is included.

상기 바(100)는 본 발명의 기본 몸체로서, 전방에 인입홈(110)이 형성되며, 후방에 상기 인입홈(110)과 연통되며 상기 인입홈(110)보다 직경이 넓게 형성되는 나사홈(120)이 형성된다.The bar 100 is a basic body of the present invention, the inlet groove 110 is formed in the front, the screw groove which is communicated with the inlet groove 110 in the rear and the diameter is wider than the inlet groove (110) ( 120) is formed.

이 때, 상기 인입홈(110)은 상기 바(100)의 전방 중심에 함몰 형성되며, 상기 나사홈(120)은 상기 바(100)의 후방 중심에 함몰 형성된다.At this time, the inlet groove 110 is recessed in the front center of the bar 100, the screw groove 120 is formed in the rear center of the bar 100.

상기 다수의 디스크(200)는 상기 바(100)의 전방에 전후방향으로 서로 일정간격 이격되게 설치되며, 원반형으로 형성될 수 있으나, 본 발명은 이에 한정되지 아니한다.The plurality of disks 200 may be spaced apart from each other in the front and rear directions in front and rear of the bar 100, and may be formed in a disk shape, but the present invention is not limited thereto.

상기 링크체인(300)은 상기 다수의 디스크(200)를 서로 연결하며 상기 다수의 디스크(200) 간에 간격을 조절하는 것으로, 링크축(310), 제1링크캡(320), 제2링크캡(330)을 포함한다.The link chain 300 connects the plurality of disks 200 to each other and adjusts a gap between the plurality of disks 200, the link shaft 310, the first link cap 320, and the second link cap. 330.

상기 링크축(310)은 상기 다수의 디스크(200)의 중심축에 전후방향으로 관통 삽입되며, 굴곡이 가능한 금속 재질로 이루어질 수 있으며, 좀 더 상세하게는 알루미늄 재질로 이루어질 수 있다.The link shaft 310 is inserted through the center axis of the plurality of disks 200 in the front and rear direction, may be made of a bendable metal material, more specifically, may be made of aluminum material.

상기 제1링크캡(320)은 상기 링크축(310)의 인입홈(110)에 삽입된 후단에 결합되며 상기 나사홈(120)에 나사결합된다. 도 3을 참조하면, 상기 제1링크캡(320)은 상기 나사홈(120)의 전방으로 이동되어 상기 링크축(310)이 상기 인입홈(110)의 전방으로 더 돌출되게 하거나 상기 나사홈(120)의 후방으로 이동되어 상기 링크축(310)이 상기 인입홈(110)으로 삽입되어 상기 인입홈(110)의 전방으로 돌출되는 정도가 감소되게 한다.The first link cap 320 is coupled to the rear end inserted into the inlet groove 110 of the link shaft 310 and screwed to the screw groove 120. Referring to FIG. 3, the first link cap 320 is moved toward the front of the screw groove 120 so that the link shaft 310 further protrudes toward the front of the inlet groove 110 or the screw groove ( It is moved to the rear of the 120 so that the link shaft 310 is inserted into the inlet groove 110 to reduce the degree of protruding forward of the inlet groove (110).

상기 제2링크캡(330)은 상기 링크축(310)의 전단에 결합된다.The second link cap 330 is coupled to the front end of the link shaft 310.

한편, 상기 링크체인(300)은 상기 링크축(310)이 상기 인입홈(110)의 전방으로 돌출되는 정도에 따라, 상기 다수의 디스크(200) 간에 간격을 조절할 수 있는데, 이 때, 상기 링크축(310)이 상기 인입홈(110)의 전방으로 더 돌출되면 상기 다수의 디스크(200) 간에 간격이 넓어질 것이고, 상기 링크축(310)이 상기 인입홈(110)으로 삽입되면 상기 다수의 디스크(200) 간에 간격이 좁아질 것이다.On the other hand, the link chain 300 may adjust the distance between the plurality of disks 200, according to the extent that the link shaft 310 protrudes in front of the inlet groove 110, at this time, the link If the shaft 310 is further protruded toward the front of the inlet groove 110, the spacing between the plurality of disks 200 will be widened, and if the link shaft 310 is inserted into the inlet groove 110, The spacing between the disks 200 will be narrowed.

상기 탄성부(400)는 상기 다수의 디스크(200) 사이에 설치되어 탄성을 가하여 상기 다수의 디스크(200) 간에 일정 간격이 유지되게 하는 역할을 한다.The elastic unit 400 is installed between the plurality of disks 200 to apply elasticity to serve to maintain a predetermined interval between the plurality of disks (200).

상기 디스크안내부(500)는 상기 다수의 디스크(200)를 편심되게 잡아당겨서 상기 다수의 디스크(200) 곡선상으로 배열되도록 안내할 수 있다.The disk guide part 500 may guide the plurality of disks 200 to be arranged in a curved shape by eccentrically pulling the plurality of disks 200.

이에 따라, 본 발명에 따른 파이프 몰드 포밍용 플렉시블 맨드릴(1000)은 링크축(310)이 인입홈(110)의 전방으로 돌출되는 정도에 따라 다수의 디스크(200) 간에 간격을 조절할 수 있으므로, 다수의 디스크(200) 간에 간격 조절이 가능하며 다수의 디스크(200) 간에 간격이 조절된 상태에서 다수의 디스크(200)가 곡선상으로 배열되도록 안내할 수 있는 장점이 있다.Accordingly, the flexible mandrel 1000 for forming a pipe mold according to the present invention may adjust the distance between the plurality of disks 200 according to the extent that the link shaft 310 protrudes forward of the inlet groove 110. It is possible to adjust the spacing between the disks 200 of the plurality of disks 200 has the advantage of guiding the plurality of disks 200 to be arranged in a curved state in which the spacing is adjusted.

한편, 상기파이프 몰드 포밍용 플렉시블 맨드릴(1000)은 상기 나사홈(120)을 덮는 연결관(150)을 더 포함할 수 있다.Meanwhile, the flexible mandrel 1000 for forming the pipe mold may further include a connection pipe 150 covering the screw groove 120.

도 4는 본 발명의 실시예 1에 따른 파이프 몰드 포밍용 플렉시블 맨드릴(1000)의 다수의 디스크(200)가 디스안내부에 의해 곡선상으로 배치되는 상태를 나타낸 작동도이다.4 is an operation diagram showing a state in which a plurality of disks 200 of the flexible mandrel 1000 for forming a pipe mold according to the first embodiment of the present invention are arranged in a curved shape by a disguiding part.

도 4를 참조하면, 상기 디스크안내부(500)는 당김줄(510)과, 당김롤(520)을 더 포함할 수 있다.Referring to FIG. 4, the disc guide part 500 may further include a pulling line 510 and a pulling roll 520.

상기 당김줄(510)은 전단이 상기 제2링크캡(330)의 상부에 결합되며, 후단이 상기 다수의 디스크(200)의 상부와 바(100)의 상부에 관통 삽입된다.The pulling line 510 is a front end is coupled to the upper portion of the second link cap 330, the rear end is inserted through the top of the plurality of disks 200 and the top of the bar 100.

상기 당김롤(520)은 상기 당김줄(510)의 후단이 권취된다.The pulling roll 520 is the rear end of the pulling line 510 is wound.

이 때, 상기 당김롤(520)에 상기 당김줄(510)이 권취되면서 상기 당김줄(510)이 후방으로 잡아당겨지면 상기 제2링크캡(330)의 상부와 다수의 디스크(200)의 상부가 편심되게 잡아당겨지면서 상기 제2링크캡(330)과 다수의 디스크(200)가 곡선상으로 배치되며 상기 링크축(310)도 곡선상에 대응하는 형상으로 간편하게 절곡된다.At this time, when the pulling line 510 is wound around the pulling roll 520 and the pulling line 510 is pulled backward, an upper portion of the second link cap 330 and an upper portion of the plurality of disks 200. The second link cap 330 and the plurality of disks 200 are arranged in a curved shape while being eccentrically pulled, and the link shaft 310 is also easily bent in a shape corresponding to the curved line.

<< 실시예Example 2> 2>

도 5는 본 발명의 실시예 2에 따른 파이프 몰드 포밍용 플렉시블 맨드릴(1000)을 나타낸 단면도이다.5 is a cross-sectional view showing a flexible mandrel 1000 for forming a pipe mold according to Embodiment 2 of the present invention.

도 5를 참조하면, 본 발명의 실시예 2에 따른 파이프 몰드 포밍용 플렉시블 맨드릴(1000)에 있어서, 상기 디스크안내부(500)는 조절줄(530)과, 조절롤(540)을 더 포함할 수 있다.Referring to FIG. 5, in the flexible mandrel 1000 for forming a pipe mold according to Embodiment 2 of the present invention, the disk guide part 500 may further include an adjusting line 530 and an adjusting roll 540. Can be.

상기 조절줄(530)은 전단이 상기 제2링크캡(330)의 하부에 결합되며 후단이 상기 다수의 디스크(200)의 하부와 바(100)의 하부에 관통 삽입된다.The control line 530 is the front end is coupled to the lower portion of the second link cap 330 and the rear end is inserted through the lower portion of the plurality of disks 200 and the lower portion of the bar 100.

상기 조절롤(540)은 상기 조절줄(530)의 후단이 권취된다.The control roll 540 is the rear end of the control line 530 is wound.

이 때, 상기 제2링크캡(330)과 다수의 디스크(200)가 곡선상으로 배치된 상태에서 상기 조절롤(540)에 상기 조절줄(530)이 권취되면서 상기 조절줄(530)이 후방으로 잡아당겨지면 상기 제2링크캡(330)의 하부와 다수의 디스크(200)의 하부가 편심되게 잡아당겨지면서 상기 다수의 디스크(200)의 상부 간에 간격이 좀 더 좁아지도록 조절된다.At this time, while the second link cap 330 and the plurality of disks 200 are arranged in a curved state, the adjusting line 530 is wound around the adjusting roll 540 and the adjusting line 530 is rearward. When pulled to the lower portion of the second link cap 330 and the lower portion of the plurality of disks 200 are pulled eccentrically, the gap between the upper portion of the plurality of disks 200 is adjusted to be narrower.

<< 실시예Example 3> 3>

도 6은 본 발명의 실시예 3에 따른 파이프 몰드 포밍용 플렉시블 맨드릴(1000)을 나타낸 단면도이다.6 is a cross-sectional view showing a flexible mandrel 1000 for forming a pipe mold according to Embodiment 3 of the present invention.

도 6을 참조하면, 본 발명의 실시예 3에 따른 파이프 몰드 포밍용 플렉시블 맨드릴(1000)에 있어서, 상기 탄성부(400)는 저탄성압축스프링(410)과 고탄성압축스프링(420)을 더 포함할 수 있다.Referring to FIG. 6, in the flexible mandrel 1000 for forming a pipe mold according to Embodiment 3 of the present invention, the elastic part 400 further includes a low elastic compression spring 410 and a high elastic compression spring 420. can do.

상기 저탄성압축스프링(410)은 상기 다수의 디스크(200)의 상부 사이에 각각 설치되며, 상기 고탄성압축스프링(420)은 상기 다수의 디스크(200)의 하부 사이에 각각 설치되며 상기 저탄성압축스프링(410)보다 높은 탄성을 가진다.The low elastic compression springs 410 are respectively installed between the upper portion of the plurality of disks 200, the high elastic compression springs 420 are respectively installed between the lower portion of the plurality of disks 200 and the low elastic compression It has a higher elasticity than the spring 410.

이에 따라, 본 발명의 실시예 3에 따른 파이프 몰드 포밍용 플렉시블 맨드릴(1000)은 상기 저탄성압축스프링(410)과 고탄성압축스프링(420)의 탄성 차이에 의해, 상기 다수의 디스크(200)의 상부간 간격이 상기 다수의 디스크(200)의 하부간 간격보다 좀 더 좁아지는 구조를 유지하게 되며, 상기 당김줄(510)을 잡아당길 때, 상기 당김줄(510)보다 적은 힘을 가하여도 간편하게 잡아당길 수 있다.Accordingly, the flexible mandrel 1000 for forming a pipe mold according to the third embodiment of the present invention may be formed by the elastic difference between the low elastic compression spring 410 and the high elastic compression spring 420. The space between the upper portion maintains a structure that is narrower than the space between the lower portion of the plurality of disks 200, when pulling the pull line 510, even if you apply less force than the pull line 510 Can pull.

<< 실시예Example 4> 4>

도 7은 본 발명의 실시예 3에 따른 파이프 몰드 포밍용 플렉시블 맨드릴(1000)을 나타낸 단면도이다.7 is a cross-sectional view showing a flexible mandrel 1000 for forming a pipe mold according to Embodiment 3 of the present invention.

도 7을 참조하면, 본 발명의 실시예 3에 따른 파이프 몰드 포밍용 플렉시블 맨드릴(1000)에 있어서, 상기 링크체인(300)은 상기 제1링크캡(320)의 후단에 결합되는 링크손잡이(340)를 더 포함할 수 있다.Referring to FIG. 7, in the flexible mandrel 1000 for forming a pipe mold according to Embodiment 3 of the present invention, the link chain 300 is coupled to a rear end of the first link cap 320. ) May be further included.

상기 링크손잡이(340)는 상기 연결관(150)이 제거된 상태에서 상기 제1링크캡(320)의 후단에 결합되어 상기 제1링크캡(320)이 전후방향으로 이동되는 정도를 수동으로 조절하게 하는 역할을 한다.The link handle 340 is coupled to the rear end of the first link cap 320 in the state in which the connection pipe 150 is removed to manually adjust the degree of movement of the first link cap 320 in the front and rear directions. Play a role.

본 발명은 상기한 실시예에 한정되지 아니하며, 적용범위가 다양함은 물론이고, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 다양한 변형 실시가 가능한 것은 물론이다.The present invention is not limited to the above-described embodiments, and the scope of application is not limited, and various modifications can be made without departing from the gist of the present invention as claimed in the claims.

Claims (5)

전방에 인입홈이 형성되며, 후방에 상기 인입홈과 연통되며 상기 인입홈보다 직경이 넓게 형성되는 나사홈이 형성되는 바;An inlet groove is formed in the front, and a screw groove is formed in communication with the inlet groove at the rear thereof, the screw groove being wider than the inlet groove; 상기 바의 전방에 전후방향으로 서로 일정간격 이격되게 설치되는 다수의 디스크;A plurality of disks spaced apart from each other in a front and rear direction in front of the bar; 상기 다수의 디스크에 전후방향으로 관통 삽입되는 링크축과, 상기 링크축의 인입홈에 삽입된 후단에 결합되며 상기 나사홈에 나사결합되는 제1링크캡과, 상기 링크축의 전단에 결합되는 제2링크캡으로 포함하며, 상기 링크축이 상기 인입홈의 전방으로 돌출되는 정도에 따라 상기 다수의 디스크 간에 간격을 조절하는 링크체인;A link shaft inserted through the plurality of disks in a forward and backward direction, a first link cap coupled to a rear end inserted into an inlet groove of the link shaft and screwed to the screw groove, and a second link coupled to a front end of the link shaft. A link chain including a cap and adjusting a gap between the plurality of disks according to the extent that the link shaft protrudes forward of the inlet groove; 상기 다수의 디스크 사이에 설치되어 탄성을 가하는 탄성부; 및An elastic part installed between the plurality of disks to apply elasticity; And 상기 다수의 디스크가 곡선상으로 배열되도록 안내할 수 있는 디스크안내부;를 포함하는 것을 특징으로 하는 파이프 몰드 포밍용 플렉시블 맨드릴.Flexible mandrel for forming a pipe mold comprising a; disk guide portion for guiding the plurality of disks to be arranged in a curved shape. 제1항에 있어서, 상기 디스크안내부는According to claim 1, wherein the disc guide portion 전단이 상기 제2링크캡의 상부에 결합되며 후단이 상기 다수의 디스크의 상부와 바의 상부에 관통 삽입되는 당김줄과, 상기 당김줄의 후단이 권취되는 당김롤을 더 포함하는 것을 특징으로 하는 파이프 몰드 포밍용 플렉시블 맨드릴.A front end is coupled to an upper portion of the second link cap, and a rear end further includes a pulling line inserted through the upper part of the upper part and the upper part of the bar, and a pulling roll to which the rear end of the pulling line is wound. Flexible mandrel for pipe mold forming. 제2항에 있어서, 상기 디스크안내부는According to claim 2, wherein the disc guide portion 전단이 상기 제2링크캡의 하부에 결합되며 후단이 상기 다수의 디스크의 하부와 바의 하부에 관통 삽입되는 조절줄과, 상기 조절줄의 후단이 권취되는 조절롤을 더 포함하는 것을 특징으로 하는 파이프 몰드 포밍용 플렉시블 맨드릴.The front end is coupled to the lower portion of the second link cap and the rear end of the plurality of disks and the control line is inserted through the lower portion of the bar, and the rear end of the control line further comprises a control roll wound Flexible mandrel for pipe mold forming. 제3항에 있어서, 상기 탄성부는The method of claim 3, wherein the elastic portion 상기 다수의 디스크의 상부 사이에 각각 설치되는 다수의 저탄성압축스프링과, 상기 다수의 디스크의 하부 사이에 각각 설치되며 상기 저탄성압축스프링보다 높은 탄성을 가진 고탄성압축스프링을 더 포함하는 것을 특징으로 하는 파이프 몰드 포밍용 플렉시블 맨드릴.And a plurality of low elastic compression springs respectively installed between the upper portions of the plurality of disks, and high elastic compression springs respectively installed between the lower portions of the plurality of disks and having higher elasticity than the low elastic compression springs. Flexible mandrel for forming pipe molds. 제1항에 있어서, 상기 링크체인은The method of claim 1, wherein the link chain 상기 제1링크캡의 후단에 결합되는 링크손잡이를 더 포함하는 것을 특징으로 하는 파이프 몰드 포밍용 플렉시블 맨드릴.Flexible mandrel for forming a pipe mold further comprising a link handle coupled to the rear end of the first link cap.
PCT/KR2016/013936 2016-11-18 2016-11-30 Flexible mandrel for forming pipe mold Ceased WO2018092965A1 (en)

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