KR20000024365A - Molder of main pipes for manufacturing T-shaped multiple pipes and method for molding the pipes - Google Patents

Molder of main pipes for manufacturing T-shaped multiple pipes and method for molding the pipes Download PDF

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Publication number
KR20000024365A
KR20000024365A KR1020000006167A KR20000006167A KR20000024365A KR 20000024365 A KR20000024365 A KR 20000024365A KR 1020000006167 A KR1020000006167 A KR 1020000006167A KR 20000006167 A KR20000006167 A KR 20000006167A KR 20000024365 A KR20000024365 A KR 20000024365A
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South Korea
Prior art keywords
tube
pipe
fixing frame
frame
molding
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KR1020000006167A
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Korean (ko)
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이병래
손현숙
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이병래
손현숙
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Priority to KR1020000006167A priority Critical patent/KR20000024365A/en
Publication of KR20000024365A publication Critical patent/KR20000024365A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P17/00—Metal-working operations, not covered by a single other subclass or another group in this subclass
    • B23P17/02—Single metal-working processes; Machines or apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
    • B23P13/02—Making metal objects by operations essentially involving machining but not covered by a single other subclass in which only the machining operations are important
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/02—Thread cutting; Automatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

PURPOSE: A molding frame for T-shaped branch pipes is provided to easily connecting a main pipe with a T-shaped branch pipe by a simple assembly without any additional welding or abrasion process. CONSTITUTION: A molding frame(M) for T-shaped branch pipes includes an upper fixing frame (1) formed in the reversed U shape with a height smaller than a radius of a pipe to be molded(7) and having a plurality of through-holes(5) in a predetermined interval at a curved portion, a longitudinal groove(3) at the bottom surface, and a lower fixing frame(2) formed in the same height with the upper fixing frame(1) and having a longitudinal protrusion(4) of a complementary size to the longitudinal groove(3) of the upper fixing frame(1), so that the upper fixing frame(1) and the lower fixing frame(2) are inserted into the pipe(7) to be molded by engaging the protrusion(4) with the groove(3), the pipe(7) is pressed by a press(9) positioned to the through holes(5) and then the main molding frame(M) is removed from the inside of the pipe(7).

Description

티자형 다기관 제조용 메인관의 성형틀 및 성형방법{Molder of main pipes for manufacturing T-shaped multiple pipes and method for molding the pipes}Mold of main pipes for manufacturing T-shaped multiple pipes and method for molding the pipes}

본 발명은 T자형 관을 제작하기 위한 관의 연결부를 성형하는 성형틀 및 그 성형틀에 의해 관을 성형하는 방법에 관한 것이다.The present invention relates to a forming mold for forming a joint of a tube for producing a T-shaped tube and a method of forming the tube by the forming mold.

종래에 T자형 다기관(분기관)을 제작하기 위한 방법의 하나로는, 도4(a)에 도시된 바와 같이, 일자형 메인관(23)내부의 소정위치에서 관을 압착하여 압착된 관벽 부위가 관 외부로 만곡 돌출되게 한 다음 그 만곡 돌출부(20) 내벽면에 나사산(21)을 형성하여 그 나사산(21)에 외주면에 나사산(22a)이 형성된 수직관(22)을 나사결합하도록 하였거나, 도4(b)에 나타낸 바와 같이 일자형 메인관(23)에 원하는 소정 간격으로 구멍(24)을 천설한 다음 그 구멍에 내벽면에 나사산(21')이 형성된 다른 일자형 관(25)을 수직되게 용접하고 그 용접된 부위(26)를 연마하여 표면을 평활하게 마무리한 후 상기한 도4(a)의 경우와 같이 외주면에 나사산(22a)이 형성된 수직관(22)을 나사결합하도록 하는 방법을 택하거나, 도4(c)에 도시된 바와 같이, 내벽면에 나사산(21")이 형성된 분기관 연결부(27)가 메인관(23)외부로 돌출되게 주물성형하여 그 분기관 연결부(27)의 나사산(21")에 외주면에 나사산(22a)이 형성된 수직관(22)을 나사연결하도록 하는 방법을 택하거나, 도4(d)에서와 같이 분기관 연결부(27')의 나사산(21')이 메인관(23)의 두꺼운 벽면내에 형성되게 하여 상기와 같은 수직관(22)을 나사연결토록 하였으나, 도4(a)와 같은 경우에는 대형직경의 관인 경우에는 성형이 가능하지만 소형 직경의 관인 경우에는 성형이 불가능한데다가 소형 직경의 경우에는 직경의 두께가 대부분 얇기 때문에 관벽을 외부로 밀어서 천공은 가능하지만 상부로 만곡된 벽면(21)에 나사산을 형성하는것은 불가능하였다.As one of the conventional methods for manufacturing a T-shaped manifold (branch pipe), as shown in Fig. 4 (a), the pipe wall portion that is compressed by crimping the pipe at a predetermined position inside the straight main pipe 23, the pipe After making it protrude outwardly, a thread 21 is formed on the inner wall surface of the curved protrusion 20 so as to screw the vertical pipe 22 having the thread 22a on the outer circumferential surface thereof, or FIG. 4. As shown in (b), a hole 24 is formed in the straight main tube 23 at a predetermined interval, and then another vertical pipe 25 having a thread 21 'formed on the inner wall surface thereof is vertically welded. After the welded part 26 is polished to smoothly finish the surface, a method of screwing the vertical pipe 22 having the thread 22a on the outer circumferential surface as shown in FIG. 4 (c), a branch pipe having a thread 21 " formed on the inner wall surface thereof; A method of casting the joint 27 to protrude out of the main pipe 23 to screw the vertical pipe 22 having the thread 22a on the outer circumferential surface to the thread 21 "of the branch pipe connection 27. Alternatively, as shown in Fig. 4 (d), the thread 21 'of the branch pipe connecting portion 27' is formed in the thick wall surface of the main pipe 23 so as to screw the vertical pipe 22 as described above. However, as shown in FIG. 4 (a), molding is possible in the case of a large diameter tube, but molding is impossible in the case of a small diameter tube, and in the case of a small diameter, the diameter of the small diameter is mostly thin so that the perforation is performed by pushing the tube wall to the outside. Although possible, it was not possible to form a thread on the upper curved wall 21.

또 도4(b)의 경우에는 메인관(23)에 단순 천공한 구멍(24)에 내벽면에 나사산(21')이 형성된 일자형관(25)을 수직 용접한 다음 그 용접 부위(26)을 연마하여 표면을 미려하고 평활하게 하여야하므로 용접부위(26)가 튼튼하지 못하여 떨어지기 쉬운 데다가 별도의 용접 및 연마등의 고정을 필요로 하므로 시간적 소모, 인건비 상승, 원재료비 상승 및 생산 효율성 저하 등의 단점이 있었다.In addition, in the case of Fig. 4 (b), the straight pipe 25 in which the thread 21 'is formed on the inner wall surface is vertically welded to the hole 24 simply drilled into the main pipe 23, and then the welding portion 26 is welded. Because the surface must be polished and polished to make it smooth and smooth, the welding part 26 is not strong and easy to fall off, and requires separate welding and polishing, etc., so it is time consuming, labor cost rises, raw material cost rises and production efficiency decreases. There was this.

또 도4(c)의 경우에는 T자형의 관을 형성하기 위해 내벽에 나사산(21")이 형성된 연결부가 돌출되게 메인관(23)을 주물 성형하였기 때문에 소형관의 성형이 어렵고, 또 주물 성형의 경우에는 벽 두께를 얇게 할 수 없어서 자연히 메인관 두께가 두껍게 성형이 되므로 원재료 소모가 많고 하중이 무겁게 되는 결점이 있었다.In addition, in the case of Fig. 4 (c), since the main tube 23 is cast to protrude a connecting portion formed with a thread 21 " on the inner wall to form a T-shaped tube, molding of a small tube is difficult and casting molding is performed. In the case of, the wall thickness cannot be made thin, so the main tube is naturally thick, so there is a drawback that the raw materials are consumed and the load is heavy.

또 도4(d)의 경우에는 메인관(23)내부로 분기관 연결부(27')의 나사산(21')이 형성되게 하려면 메인관(23)의 두께를 연결부의 나사산(21')의 깊이만큼 두껍게 성형하여야 하므로 재료가 많이 소요됨은 물론이고 관의 하중이 무거워지는 단점이 있었다.In addition, in the case of Fig. 4 (d), in order to form the thread 21 'of the branch pipe connecting portion 27' into the main pipe 23, the thickness of the main pipe 23 is determined by the depth of the thread 21 'of the connecting portion. Since it has to be formed as thick as it takes a lot of material, as well as the heavy load of the tube had the disadvantage.

본 발명은 상기한 바와 같은 결점을 해소하여 성형이 용이하고 용접 및 마무리 공정이 필요 없으며 성형후 T자형 관 연결이 용이한 T자형 다기관(분기관)연결용 메인관의 성형틀 및 그 성형틀에 의한 메인관의 제조방법과 그 제조 방법에 의해서 성형된 메인관을 제공코저 하는 것이다.The present invention eliminates the above-mentioned drawbacks, and is easy to mold, and does not require welding and finishing processes, and easy to form T-shaped manifold (branch pipe) connecting main tube for forming T-shaped pipe after forming and its forming frame. To provide a main tube manufactured by the method and a main tube molded by the method.

도 1 은 본 발명에 사용되는 성형틀과 관의 분해 사시도.1 is an exploded perspective view of a mold and a tube used in the present invention.

도 2 는 본 발명의 성형틀과 관 결합시의 단면도.Figure 2 is a cross-sectional view at the time of joining the forming mold of the present invention.

도 3(a) 는 본 발명 성형틀로 관을 압착 성형전의 단면도.Figure 3 (a) is a cross-sectional view of the tube before the compression molding of the present invention mold.

도 3(b) 는 본 발명 성형틀로 관을 압착 성형후 아래 받침틀을 제거하는 상 태의 단면도.Figure 3 (b) is a cross-sectional view of the state to remove the lower support frame after crimping the tube with the molding die of the present invention.

도 3(c) 는 본 발명 성형틀로 관을 압착 성형후의 윗 성형틀을 제거하는 상 태의 단면도.Figure 3 (c) is a cross-sectional view of the state of removing the upper mold after the compression molding of the tube with the mold of the present invention.

도 4(a) 는 종래 방법에 의해 성형된 다기관의 분해 단면도.4 (a) is an exploded cross sectional view of a manifold formed by a conventional method;

도 4(b) 는 종래 방법에 의해 성형된 또다른 다기관의 분해 단면도.4 (b) is an exploded cross-sectional view of another manifold formed by a conventional method.

도 4(c) 는 종래 방법에 의해 성형된 또다른 다기관의 분해 단면도.4 (c) is an exploded cross-sectional view of another manifold formed by a conventional method.

* 도면 중 주요부분에 대한 부호의 설명** Explanation of symbols for main parts of the drawings *

1 : 고정틀 2 : 받침틀1: fixed frame 2: support frame

3 : 키홈 4 : 키돌기3: keyway 4: key protrusion

5 : 수직공 5' : 절곡면5: vertical hole 5 ': bending surface

5a : 나사산 6 : 지지대5a: thread 6: support

7 : 관 8 : 압착핀7: tube 8: pressing pin

9 : 프레스 10 : 관9: press 10: tube

10a : 숫나사산 11 : 받침판10a male thread 11: base plate

만곡부에서 일정간격으로 수직공(5)이 천설되고 저면에는 키홈(3)이 요설되며 일단이 지지대(6)에 고정되어 높이가 성형코저하는 관(7)의 반경보다 약간 작은 역 U자형의 상부 고정틀(1)과, 상기 역 U자형과 동일 높이를 가지면서 키홈(3)과 일치되게 결합 및 해체되는 키돌기(4)를 가진 U자형 하부 받침틀(2)과 그 하부의 외부 받침판(11)로 구성되는 성형틀(M)을 이용하여 먼저 지지대(6)에 고정된 고정틀(1)에 소정의 성형코저하는 관(7)을 삽입하여 걸친 다음 하부 여백의 관내에 받침틀(2)을 상기 키홈(3)과 키돌기(4)가 일치로 치합되게 삽입한 후 상기 관(7)의 아래에 외부받침판(11)을 받친 다음 상기 수직공(5)과 일치되게 위치된 압착핀(8)을 갖고 상기 성형틀 상부에 설치된 프레스(9)로 프레싱하여 압착핀(8)에 의하여 수직공(5)부위를 압착하여 관의 벽이 아래로 천공되면서 둥글게 절곡되게 한 다음 상기 하부 받침틀(2)과 외부 받침판(11)을 제거한 다음 상부 고정틀(1)에 끼어 있는 관(7)을 밑에서 위로 처주어서 관(7)을 고정틀(1)에서 빼낸 다음 그 절곡면(5')에 나사산(5a)을 형성한 것으로 구성된 것이다.Vertical holes (5) are laid at regular intervals at the bent portion, key grooves (3) are recessed at the bottom, and one end is fixed to the support (6) so that the height is slightly smaller than the radius of the tube (7) forming molding U-shaped lower support frame (2) having an upper fixing frame (1), and a key projection (4) that is the same height as the inverted U-shape, and is engaged and dismantled in accordance with the key groove (3) and the outer support plate 11 of the lower portion Using the mold (M) consisting of the first to insert a tube (7) for a predetermined molding to the fixed frame (1) fixed to the support (6), and then span the support frame (2) in the tube of the lower margin After the key groove 3 and the key protrusion 4 are inserted into a match, the support plate 11 is supported under the pipe 7, and then the pressing pin 8 is aligned with the vertical hole 5. Press the press 9 installed in the upper part of the mold and press the vertical hole 5 by the pressing pin 8 to lower the wall of the pipe. After the lower support frame (2) and the outer support plate (11) were removed while being perforated and rounded, the tube (7) inserted in the upper fixing frame (1) was swept upwards from the bottom to remove the tube (7) from the fixing frame (1). Next, the threaded portion 5a is formed on the bent surface 5 '.

이상과 같이 구성되는 본 발명 성형틀에 의하여 T자형 다기관 제조용 메인관을 성형하게 되면, 먼저 지지대(6)에 고정된 고정틀(1)에 소정의 관(7)을 걸친 상태에서 하부 받침틀(2)을 키홈(3)과 키돌기(4)가 치합되게 관내로 삽입한 후 관외부 받침판(11)을 받침상태에서 상기 고정틀(1)의 수직공(5)과 일치되게 설치된 프레스(9)의 압착핀(8)에 의하여 정확하게 관벽을 압착하여 관벽이 수직공(5)내로 압착되어 벌리면서 둥글게 절곡되므로 하부 받침틀(2)과 외부 받침판(11)을 제거한 다음 관(7)을 위로 처올려 빼낸 후 그 관의 절곡면(5')에 나사관(5a)만 형성하면 간단히 T자형 다기관 제조용 메인관(7)을 쉽게 제조할 수 있게 된다.When forming the main tube for manufacturing the T-shaped manifold by the molding die of the present invention configured as described above, first, the lower support frame (2) in a state in which a predetermined tube (7) over the fixing frame (1) fixed to the support (6) The key groove 3 and the key projection 4 into the tube to be engaged with each other, and then press the press 9 installed to match the vertical hole 5 of the fixing frame 1 in the state of supporting the outer tube support plate 11. The tube wall is precisely crimped by the pin (8) and the tube wall is pressed into the vertical hole (5) to open and bend round. Therefore, the lower support frame (2) and the outer support plate (11) are removed, and then the tube (7) is lifted up and removed. If only the screw pipe 5a is formed in the bent surface 5 'of the pipe, the main pipe 7 for manufacturing the T-shaped manifold can be easily manufactured.

본 발명 T자형 다기관 제조용 성형틀에 의해 다기관을 제조하면 성형이 쉽고 연마 등의 마무리 공정이 불필요하고 주물성형하지 않아도 되므로 제조원가가 절감됨은 물론 사용이 용이한 효과가 있다.When the manifold is manufactured by the molding die for manufacturing the T-shaped manifold of the present invention, it is easy to mold and does not require a finishing process such as polishing and does not need to be cast, thereby reducing manufacturing costs and making it easy to use.

Claims (3)

만곡부에서 일정간격으로 수직공(5)이 천설되고 저면에는 키홈(3)이 요섭되며 일단이 지지대(6)에 고정되어 높이가 성형코저하는 관(7)의 반경보다 약간 작은 역 U자형의 상부 고정틀(1)과, 상기 역 U자형과 동일 높이를 가지면서 키홈(3)과 일치되게 결합 및 해체되는 키돌기(4)를 가진 U자형 하부 받침틀(2)과 그 하부의 외부 받침판(11)으로 구성됨을 특징으로하는 T자형 다기관 제조용 메인관의 성형틀.Vertical holes (5) are laid at regular intervals at the bent portion, key grooves (3) are confined at the bottom, and one end is fixed to the support (6) so that the height is slightly smaller than the radius of the tube (7) forming molding U-shaped lower support frame (2) having an upper fixing frame (1), and a key projection (4) that is the same height as the inverted U-shape, and is engaged and dismantled in accordance with the key groove (3) and the outer support plate 11 of the lower portion Forming frame of the main tube for manufacturing T-shaped manifold, characterized in that consisting of. 제1항의 성형틀을 이용하여 먼저 지지대(6)에 고정된 고정틀(1)에 소정의 성형코저하는 관(7)을 삽입하여 걸친 다음 하부 여백의 관내에 받침틀(2)을 상기 키홈(3)과 키돌기(4)가 일치로 치합되게 삽입한 후 외부 받침판(11)을 관(7)하부에 받친 다음 상기 수직공(5)과 일치되게 위치된 압착핀(8)을 갖고 상기 성형틀 상부에 설치된 프레스(9)로 프레싱하여 압착핀(8)에 의하여 수직공(5)부위를 압착하여 관이 아래로 천공되면서 둥글게 절곡되게 한 다음 상기 하부 받침틀(2)과 외부 받침판(11)을 제거한 후 관(7)을 위로 처올려서 고정틀(1)에서 빼낸후 그 관의 절곡면(5')에 나사산(5a)을 형성한 것으로서 구성됨을 특징으로하는 T자형 다기관 제조방법.Using the forming mold of claim 1, the tube 7 for a predetermined molding is inserted into the fixing frame 1 fixed to the support 6, and then the support frame 2 is inserted into the tube of the lower margin. ) And the key protrusion (4) is inserted into the matched, and then the outer support plate (11) is supported by the lower portion of the tube (7) and has a pressing pin (8) positioned to match the vertical hole (5) Pressing with a press (9) installed in the upper portion by pressing the vertical pin (5) by the pressing pin (8) so that the pipe is bent round as it is drilled down and then the lower support frame (2) and the outer support plate (11) After removing the tube (7) up and out of the fixing frame (1) after removing the T-shaped manifold manufacturing method characterized in that it consists of forming a thread (5a) on the bent surface (5 ') of the tube. 제2항의 방법에 의해서 제조된 T자형 다기관.T-shaped manifold manufactured by the method of claim 2.
KR1020000006167A 2000-02-10 2000-02-10 Molder of main pipes for manufacturing T-shaped multiple pipes and method for molding the pipes KR20000024365A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113458223A (en) * 2021-06-30 2021-10-01 东莞市新美洋技术有限公司 Mandrel component and pipe stamping equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331280A (en) * 1976-09-02 1978-03-24 Iwao Miura Drilling device for pipes
JPS5695430U (en) * 1979-11-08 1981-07-29
US4679289A (en) * 1986-08-15 1987-07-14 Brazeway, Inc. Method and apparatus for forming intruded branch attachment structures in tubing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331280A (en) * 1976-09-02 1978-03-24 Iwao Miura Drilling device for pipes
JPS5695430U (en) * 1979-11-08 1981-07-29
US4679289A (en) * 1986-08-15 1987-07-14 Brazeway, Inc. Method and apparatus for forming intruded branch attachment structures in tubing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113458223A (en) * 2021-06-30 2021-10-01 东莞市新美洋技术有限公司 Mandrel component and pipe stamping equipment

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