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WO2018092965A1 - Mandrin souple destiné à la formation d'un moule de tuyau - Google Patents

Mandrin souple destiné à la formation d'un moule de tuyau 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
English (en)
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/fr
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

La présente invention concerne un mandrin souple destiné à la formation d'un moule de tuyau, le mandrin souple comprenant : une barre qui a une rainure d'insertion formée sur sa partie avant, et une rainure filetée communiquant avec la rainure d'insertion et ayant un diamètre plus large que celui de la rainure d'insertion formée sur sa partie arrière; une pluralité de disques qui est installée sur la partie avant de la barre de manière à être espacés les uns des autres à intervalles réguliers le long de la direction avant/arrière; une chaîne de liaison qui comprend un arbre de liaison inséré pénétrant dans la pluralité de disques dans la direction avant/arrière, un premier chapeau de liaison s'accouplant à l'extrémité arrière de l'arbre de liaison insérée dans la rainure d'insertion et s'accouplant par filetage à la rainure filetée, et un second chapeau de liaison s'accouplant à l'extrémité avant de l'arbre de liaison, la chaîne de liaison réglant les intervalles entre la pluralité de disques en fonction du degré de saillie de l'arbre de liaison vers la partie avant de la rainure d'insertion; une partie élastique qui est installée entre la pluralité de disques et applique une élasticité; et une partie de guidage de disque qui permet un guidage de sorte que la pluralité de disques soit agencée sur une courbe.
PCT/KR2016/013936 2016-11-18 2016-11-30 Mandrin souple destiné à la formation d'un moule de tuyau Ceased WO2018092965A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160154338A KR101841102B1 (ko) 2016-11-18 2016-11-18 파이프 몰드 포밍용 플렉시블 맨드릴
KR10-2016-0154338 2016-11-18

Publications (1)

Publication Number Publication Date
WO2018092965A1 true WO2018092965A1 (fr) 2018-05-24

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PCT/KR2016/013936 Ceased WO2018092965A1 (fr) 2016-11-18 2016-11-30 Mandrin souple destiné à la formation d'un moule de tuyau

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KR (1) KR101841102B1 (fr)
WO (1) WO2018092965A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120347097A (zh) * 2025-06-26 2025-07-22 张家港乔昇精密机械制造有限公司 一种三工位异型弯管机

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111014386A (zh) * 2019-12-17 2020-04-17 安徽中鼎流体系统有限公司 一种新能源汽车电池液冷管链式穿芯
KR102654788B1 (ko) 2021-10-12 2024-04-04 백진아 전해수 생성장치
CN114472637B (zh) * 2021-12-21 2025-06-13 南南铝业股份有限公司 解决开口铝型材弯曲起皱可调且循环使用的填充方法
KR20250019317A (ko) 2023-08-01 2025-02-10 황민 산도 및 유효염소농도를 자동 제어할 수 있는 전해이온수 생성장치
KR20250019318A (ko) 2023-08-01 2025-02-10 황민 소모전력을 고려한 염소농도를 미세조절할 수 있는 전해이온수 생성장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06304667A (ja) * 1993-04-23 1994-11-01 Showa Alum Corp 曲げ加工用マンドレル
JPH11179437A (ja) * 1997-12-24 1999-07-06 Nippon Light Metal Co Ltd 曲げ加工用マンドレルと押し通し曲げ加工法
JP2007319904A (ja) * 2006-06-02 2007-12-13 Honda Motor Co Ltd 二重管の曲げ加工用芯金
JP2013071143A (ja) * 2011-09-27 2013-04-22 Tokai Rubber Ind Ltd 曲げ加工用マンドレルおよびそれを用いたパイプ体の曲げ加工方法
KR101471123B1 (ko) * 2014-01-24 2014-12-11 박일량 다관절 맨드릴 및 다관절 맨드릴을 이용한 타원형 벤딩관의 제조방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06304667A (ja) * 1993-04-23 1994-11-01 Showa Alum Corp 曲げ加工用マンドレル
JPH11179437A (ja) * 1997-12-24 1999-07-06 Nippon Light Metal Co Ltd 曲げ加工用マンドレルと押し通し曲げ加工法
JP2007319904A (ja) * 2006-06-02 2007-12-13 Honda Motor Co Ltd 二重管の曲げ加工用芯金
JP2013071143A (ja) * 2011-09-27 2013-04-22 Tokai Rubber Ind Ltd 曲げ加工用マンドレルおよびそれを用いたパイプ体の曲げ加工方法
KR101471123B1 (ko) * 2014-01-24 2014-12-11 박일량 다관절 맨드릴 및 다관절 맨드릴을 이용한 타원형 벤딩관의 제조방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120347097A (zh) * 2025-06-26 2025-07-22 张家港乔昇精密机械制造有限公司 一种三工位异型弯管机

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Publication number Publication date
KR101841102B1 (ko) 2018-03-23

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