KR19980027588A - Forming method of multi-layer spiral tube and apparatus therefor - Google Patents
Forming method of multi-layer spiral tube and apparatus therefor Download PDFInfo
- Publication number
- KR19980027588A KR19980027588A KR1019960046404A KR19960046404A KR19980027588A KR 19980027588 A KR19980027588 A KR 19980027588A KR 1019960046404 A KR1019960046404 A KR 1019960046404A KR 19960046404 A KR19960046404 A KR 19960046404A KR 19980027588 A KR19980027588 A KR 19980027588A
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- South Korea
- Prior art keywords
- spiral tube
- forming
- supply
- corrugated plate
- roll
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/12—Making tubes or metal hoses with helically arranged seams
- B21C37/123—Making tubes or metal hoses with helically arranged seams of coated strip material; Making multi-wall tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/12—Making tubes or metal hoses with helically arranged seams
- B21C37/124—Making tubes or metal hoses with helically arranged seams the tubes having a special shape, e.g. with corrugated wall, flexible tubes
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- 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
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
- B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
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- 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
- B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
Abstract
본 발명은 띠금속판 소재를 연속적으로 둥글게 말아 여러겹으로 겹쳐지게 성형되는 다층나선관의 비틀림 및 내구성이 좋고 나선관 절단이 용이하도록한 다층나선관의 성형방법 및 그 장치에 관한 것이다.The present invention relates to a method and apparatus for forming a multi-layered spiral tube, which has a good twisting and durability of a multi-layered spiral tube formed by rolling a strip metal sheet material in successive rounds, and is easily cut in a spiral tube.
즉, 소재를 연속적으로 공급하여 소정간격으로 절단구멍을 천공하고 이를 일직선상으로 공급하여 산과 골을 가진 파형판으로 절곡성형한 다음 파형판을 겹층으로 말아 감으면서 다층나선관을 성형하고 성형된 다층나선관에 있는 절단구멍 부분을 절단하는 방법으로 다층나선관을 얻게되고 권취상태의 띠금속판 소재를 연속적으로 공급하는 공급부(10)와, 띠금속판 소재에 소정간격으로 절단구멍을 형성하는 천공부(20)와, 소재의 공급간격 및 공급시기에 맞게 조절하여 일직선상으로 공급하는 공급조정부(30)와, 소재를 나선관으로 성형할 수 있게 파형판으로 절곡성형하는 파형성형부(40)와, 파형판을 투입하여 성형롤에 의해 파형판이 자연적으로 1피치씩 이동하여 성형롤레 의해 파형판이 자연적으로 1피치씩 이동하여 겹층으로 말아감으면서 다층 나선관성형이 이루어지는 나선관 성형부(50)로 이루어진 다층나선관의 성형장치이다.That is, by continuously supplying the raw materials, punching the cutting holes at predetermined intervals, and supplying them in a straight line, bending them into corrugated plates having peaks and valleys, and then rolling the corrugated plates into layers to form multilayer spiral tubes and forming the formed multilayers. The supply part 10 which obtains a multi-layered spiral tube by the method of cutting the cut-hole part in a spiral tube, and continuously supplies the strip-metal plate material of a wound state, and the perforation part which forms a cutting hole in a strip | belt metal plate material at predetermined intervals ( 20), the supply adjusting unit 30 to adjust the supply interval and the supply timing of the material in a straight line, and the corrugated forming portion 40 to be bent into a wave plate so that the material can be formed into a spiral tube, By inserting the corrugated plate, the corrugated plate naturally moves by 1 pitch by the forming roll, and the corrugated plate naturally moves by 1 pitch by the forming roll, and rolling it up in a layer. It is a molding apparatus for a multi-layered spiral tube formed of the spiral tube forming unit 50 in which the tube forming is performed.
Description
본 발명은 띠금속판 소재를 연속적으로 둥글게 말아 여러겹으로 겹쳐지게 성형되는 다층나선관의 비틀림 및 내구성이 좋고 나선관 절단이 용이하도록한 다층나선관의 성형방법 및 그 장치에 관한 것이다.The present invention relates to a method and apparatus for forming a multi-layered spiral tube, which has a good twisting and durability of a multi-layered spiral tube formed by rolling a strip metal sheet material in successive rounds, and is easily cut in a spiral tube.
종래의 다층나선관 성형장치(실용공고 95-9778호)에서는 공급되는 띠금속판 소재가 상하로 배치된 비나선형 성형롤 사이를 통과하는 과정에서 파형판으로 절곡되고 이 파형판의 선단부는 성형롤 사이로 끼어들어가 말림으로써 다층나선관으로 성형되게 한 것이었다.(도 13 참조)In the conventional multi-layer spiral tube forming apparatus (utility notification No. 95-9778), the band metal sheet material to be supplied is bent into a corrugated plate in the course of passing between the non-helical forming rolls arranged up and down, and the tip end of the corrugated plate is formed between the forming rolls. It was made to cut into a multi-layer spiral tube by cutting in (Figure 13).
이렇게 띠금속판 소재를 성형롤레 의해 파형판으로 절곡함과 아울러 곧바로 둥글게 말아 성형하기 때문에 비틀림이 좋지않게 되고 롤링할 때 구부러질려고 하는 중심선(인장과 압축이 일어나지 않는선), 즉 골과 산의 중간위치에서 파형절곡부가 발생되어 성형롤과 중심선 사이는 압축이 일어나서 꺽이거나 주름이 발생되고 중심선 바깥쪽은 인장이 발생되므로 압축이 일어나는 부분에서는 자연스럽게 적층되지 못하고 또한 제품은 나선형이지만 성형롤과 보조롤은 평행이므로 적층시 강한 밀착력이 발생되어 다층나선관의 비틀림이 일어나지 않으므로 내구성이 떨어질 뿐만 아니라 나선관 성형 후에 나선관을 소정길이로 절단할때 용융절단을 하기 때문에 슬러지가 발생하므로 나중에 자동차 엔진배기관 등으로 연결하는 용접작업에 어려움이 많았다.Since the band metal plate material is bent into a corrugated plate by a forming roll and rolled up immediately to form a torsion, the torsion is not good, and a center line (a line in which tension and compression does not occur), i.e., between the bone and the acid, is bent when rolling. At the position, the bending part is generated and compression occurs between the forming roll and the center line, which causes bending or wrinkles, and tension occurs outside the center line. Since it is parallel, strong adhesive force is generated during lamination, which does not cause twisting of multi-layered spiral pipes. Therefore, durability is not only reduced. There was a lot of difficulty in welding .
본 발명은 이러한 문제점을 해결하기 위하여 연속적으로 공급되는 띠금속판 소재를 천공부에서 나선관 절단길이를 감안한 부위에 소정간격으로 절단구멍을 형성하고 파형성형부에서 소정간격의 산과 골을 가진 파형판으로 만든 다음 나선관 성형부에서 성형롤에 의해 여러겹으로 겹쳐지는 다층나선관을 성형하고 상기 절단구멍 일측을 절단하는 방법으로 간편하게 제작이 가능케한 것이다.In order to solve the above problems, the present invention is to form a cutting hole at a predetermined interval with a strip metal plate material continuously supplied in the perforation section in consideration of the cutting length of the spiral tube, and to form a corrugated plate having peaks and valleys at a predetermined interval in the corrugated molding portion. After making the spiral tube forming part in a multi-layer spiral tube overlapping by a plurality of forming rolls and by the method of cutting the one side of the cutting hole is made possible.
도 1 은 본 발명의 전체적인 구성 예시도1 is an exemplary configuration of the present invention
도 2 는 본 발명의 띠금속판 공급 및 천공부 확대도Figure 2 is an enlarged view of the band metal plate supply and perforation of the present invention
도 3 은 본 발명의 파형판 및 나선관성형부 확대도Figure 3 is an enlarged view of the corrugated plate and spiral tubular portion of the present invention
도 4 는 본 발명의 소재권취상태의 사시도4 is a perspective view of a material winding state of the present invention
도 5 는 본 발명에 의한 금속판천공을 나타낸 평면도5 is a plan view showing a metal plate perforation according to the present invention
도 6 은 본 발명에 의한 파형판체 사시도6 is a perspective view of a corrugated plate body according to the present invention
도 7 은 본 발명에 의한 파형판체 측면도7 is a side view of a corrugated plate body according to the present invention
도 8 은 본 발명의 나선관성형부의 작용예시도8 is a working example of the spiral tube forming part of the present invention
도 9 는 본 발명의 성형안내롤 정면도9 is a front view of the molding guide roll of the present invention
도 10 은 본 발명의 나선관 성형을 나타낸 예시도10 is an exemplary view showing a spiral tube forming of the present invention.
도 11 은 본 발명의 나선관의 일부단면 및 절취부를 나타낸 정면도11 is a front view showing a partial cross section and a cut-out of the spiral tube of the present invention.
도 12 는 본 발명에 의한 파형판의 나선관성형을 나타낸 롤링예시도로서12 is a rolling exemplary view showing spiral inertia forming of a corrugated plate according to the present invention;
(가)는 롤링부분 확대도(나)는 롤릴부분 측단면 확대도(A) Enlarged view of rolling section (b) Enlarged side cross-sectional view of rolled section
도 13 은 종래의 파형판의 나선관성형을 나타낸 롤링예시도로서Fig. 13 is a rolling example showing spiral inertia of a conventional corrugated plate.
(가)는 롤링부분 확대도(나)는 롤링부분 측단면 확대도(A) Enlarged view of rolling section (b) Enlarged side view of rolling section
*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
1 : 소재2 : 절단구멍1: Material 2: Cutting Hole
3 : 파형판4 : 나선관3: corrugated plate 4: spiral tube
10 : 공급부11 : 공급판10 supply unit 11 supply plate
14 : 로울20 : 천공부14: 20 roll: hole
21, 22 : 금형23 : 공급로울21, 22: mold 23: supply roller
30 : 공급조정부31 : 고정로울30: supply adjusting unit 31: fixed roller
32 : 가변로울40 : 파형성형부32: variable roll 40: waveform forming unit
50 : 나선관성형부50a : 투입안내판50: spiral tube forming part 50a: input guide plate
51 : 성형안내롤51a : 산51: forming guide roll 51a: acid
51b : 골52 : 성형보조롤51b: Goal 52: Forming auxiliary roll
53 : 감합안내롤53a : 산53: fitting guide roll 53a: acid
53b : 골54 : 틈새53b: Goal 54: Niche
55 : 절단칼56 : 점선표시부55: cutting knife 56: dotted line display
이하 본 발명은 첨부된 도면에 의하여 상세히 설명하면 다음과 같다. 도 1 내지 도 3 은 본 발명의 전체적인 구성을 나타낸 것으로, 권취된 띠금속판 소재(1)를 연속적으로 공급하는 띠금속판 공급부(10)와, 띠금속판 소재에 소정간격으로 절단구멍(2)을 형성하여 성형나선관(4)을 소정길이로 절단할 수 있게 한 천공부(20)와, 소재를 펼쳐진 상태로 유지하며 공급간격 및 공급시기에 맞춰 적정공급이 이루어지게한 공급조정부(30)와, 소재를 나선관으로 성형할 수 있게 다수의 산과 골을 가진 파형판(3)으로 절곡성형하는 파형성형부(40)와, 파형판을 성형롤로 겹층으로 말아 다층나선관으로 만드는 나선관성형부(50)로 되어 있다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. 1 to 3 show the overall configuration of the present invention, the band metal plate supply unit 10 for continuously supplying the wound band metal plate material 1, and the cutting hole 2 is formed in the band metal plate material at predetermined intervals. A perforation part 20 to cut the forming spiral tube 4 to a predetermined length, and a supply adjusting part 30 to keep the material in an unfolded state and to make a proper supply according to a supply interval and a supply time; Corrugation forming part 40 which bends and forms the corrugated plate into the corrugated plate 3 which has many mountains and valleys so that a raw material may be formed into a spiral tube, and the spiral tube forming part which makes a corrugated board into a multi-layer spiral tube by rolling a layer with a forming roll (50) )
띠금속판 공급부(10)는, 공급판(11)에 도 4 와 같은 권취상태의 띠금속판 소재(1)를 안치시키고 일측의 로울(14)을 따라 천공부(20)로 연속적으로 공급시킨다.The strip metal plate supply part 10 encloses the strip metal plate material 1 of the coiled state as shown in FIG. 4 in the supply plate 11, and continuously supplies it to the perforation part 20 along the roll 14 of one side.
천공부(20)는, 여러겹으로 겹쳐진 다층나선관의 일측피치를 절단하여 소정길이의 나선관을 얻을 수 있게 나선관성형후의 절단피치를 감안하여 금속판 소재표면에 도 5에서와 같이 소정간격으로 절단구멍(2)을 형성하되 이는 소재가 진행되는 위치에서 상·하부 금형(21)(22)으로 천공작업을 하여 공급로울(23)에 의해 공급조정부(30)로 보내진다.The perforation section 20 cuts one side pitch of a multi-layered multi-layered spiral tube to obtain a spiral tube of a predetermined length so that the cut pitch after spiral tube molding is applied to the metal sheet material surface at predetermined intervals as shown in FIG. 5. The cutting hole 2 is formed, which is punched by the upper and lower molds 21 and 22 at the position where the material proceeds, and is sent to the supply adjusting unit 30 by the supply roller 23.
공급조정부(30)는, 다수의 고정로울(31)과 이와 행거형태로 지지된 가변로울(32)이 배치되어 펼쳐진 상태의 띠금속판 소재를 파형성형부(40)에 일직선 상으로 공급시킬 수 있게 하며 천공작업시 파형성형 및 다층나선관 성형장치가 정지하므로서 생기는 생산성저하를 막기 위하여 파형성형 및 다층나선관 성형시 연속작업을 할 수 있도록 공급을 조정한다.The supply adjustment unit 30 is arranged so that a plurality of fixed rolls 31 and a variable roll 32 supported in the form of a hanger are arranged in a straight line to supply the band metal plate material in the unfolded state to the corrugated molding unit 40. In order to prevent productivity degradation caused by the stop of the corrugation molding and multi-layer spiral tube forming equipment during drilling, the supply is adjusted so that the continuous work can be performed during the corrugation forming and multi-layer spiral tube forming.
파형성형부(40)는, 띠금속판 소재를 나선형으로 겹치게 감아서 성형할 수 있게 소재표면에 소정크기의 산과 골이 다수 배열되어 있는 파형판(3)을 도 6 및 도 7 에 예시된 바와 같이 성형하여 투입안내판(50a)을 거쳐 나선관 성형부로 보내게 된다.The corrugated molding part 40 is a corrugated plate 3 having a plurality of peaks and valleys of a predetermined size arranged on a surface of a material so as to be formed by spirally winding a band metal sheet material as illustrated in FIGS. 6 and 7. It is molded and sent to the spiral tube forming part via the input guide plate 50a.
나선관성형부(50)는, 파형판(3)이 성형되어 배출이 진행되는 위치에 투입안내판(50a)을 설치하고 그 후방에 산과 골이 형성된 성형안내롤(51)이 설치되고, 성형안내롤(51)의 바로 위쪽에 평면상의 성형보조롤(52)을 배치한 다음 파형판(3)이 성형안내롤(51)과 성형보조롤(52)을 거쳐 관상으로 둥글게 말아 나선관으로 감합할 수 있도록 나선관 둘레에 해당하는 원주곡면상에 산과 골이 형성된 감합안내롤(53)을 다수 배치하며, 나선관이 성형완료되는 원주상에 절단칼(55)을 설치한다.The spiral pipe forming part 50 is provided with the injection guide plate 50a at the position where the corrugated plate 3 is molded and discharged, and a forming guide roll 51 having a hill and a valley formed at the rear thereof, and a forming guide roll. A flat forming auxiliary roll 52 may be placed immediately above the 51, and then the corrugated plate 3 may be rolled into a tubular tube through the forming guide roll 51 and the forming auxiliary roll 52 and fitted into a spiral tube. A plurality of fitting guide rolls 53 are formed on the circumferential curved surface corresponding to the spiral tube so as to form a peak and a valley, and a cutting knife 55 is installed on the circumference of the spiral tube.
상기 성형안내롤(51)은 도 9에 예시된 바와 같이 선단부에서 파형판이 겹쳐지는 방향으로 산(51a)과 골(51b)의 지름이 점차적으로 작아지게 구성하여 파형판(3)을 단계적으로 겹층시킬 수 있게 하고 구동축으로 파형판(3)을 둥글게 말리도록 하는 방향으로 회전시킨다.The forming guide roll 51 is configured to gradually reduce the diameter of the peak 51a and the valley 51b in the direction in which the corrugated plate overlaps at the distal end, as illustrated in FIG. The rotation of the corrugated plate 3 rounded by the drive shaft.
또, 성형보조롤(52)은 성형안내롤(51)의 바로 위에 다층나선관 성형시 적층되는 두께에 맞추어 틈새(54)를 두고 종동축으로 축설하고 롤표면을 평면상으로 구성하여 파형판(3) 진입시에 성형되는 나선관 내경부분을 접지시킬 수 있게 하여 롤링할 때 압축부분이 일어나지 않도록 중심선을 이동하는 역할을 하고 다층나선관의 측벽부분을 강제로 압축시키지 않으므로 자연스럽게 적층시킬 수 있고, 성형보조롤(52)과 성형안내롤(51) 사이의 틈새(54)는 파형판(3)을 단계적으로 겹층시킬 수 있게 폭이 점차적으로 넓어지도록 하는 것이 본 발명의 주요한 내용중의 하나이다.In addition, the forming auxiliary roll 52 is laid on the driven shaft with a gap 54 in accordance with the thickness to be laminated during the forming of the multi-layer spiral tube directly on the forming guide roll 51, and the roll surface is formed in a plane to form a corrugated plate ( 3) The inner diameter of the spiral tube formed at the time of entry can be grounded to move the center line so that the compressed portion does not occur when rolling, and the side wall of the multi-layer spiral tube is not forcibly compressed so that it can be laminated naturally. One of the main contents of the present invention is that the gap 54 between the auxiliary roll 52 and the forming guide roll 51 is gradually widened so that the corrugated plate 3 can be laminated stepwise.
또, 감합안내롤(53)은 파형판(3)이 성형안내롤(51)과 성형보조롤(52)을 통과하여 나선관으로 감합될 수 있는 위치의 원주곡면상에서 종동축으로 축설하되 가변고정할 수 있게 구성하여 나선관 외경크기에 맞게 조정할 수 있게 하고, 나선관 성형이 진행될때 성형안내롤(51)에서 1피치씩 이동하여 감합될 수 있도록 감합안내롤(53)의 선단부를 성형 나선관의 나선 각도에 맞추어 고정시킨다.In addition, the fitting guide roll 53 is arranged on the circumferential surface of the position where the corrugated plate 3 can pass through the forming guide roll 51 and the forming auxiliary roll 52 to be fitted into the spiral tube, but is fixed on the driven shaft, but fixedly variable. It is configured to be able to adjust to the size of the outer diameter of the spiral tube, and when the spiral tube forming is in progress, the tip portion of the fitting guide roll 53 to be moved by one pitch from the forming guide roll 51 to be fitted Fix to the helix angle of.
한편, 상기 성형보조롤(52)의 평면상으로된 롤표면에 널링메시를 내어 롤링작업시 파형판이 미끄러지지 않고 진입할 수 있도록 구성할 수도 있다.On the other hand, by knurling mesh on the roll surface formed on the planar surface of the forming auxiliary roll 52 may be configured to enter the corrugated plate without slipping during the rolling operation.
도면 중 미설명 부호 12는 베어링, 13은 마찰판이다.In the drawings, reference numeral 12 denotes a bearing and 13 a friction plate.
이와 같이 된 본 발명은 공급부(10)의 공급판(11) 상에 권취된 띠금속판 소재(1)를 연속적으로 공급하여 천공부(20)에 보내면 천공부(20)에서는 성형나선관(4)의 절단길이를 감안하여 설정된 피치간격에 맞춰 절단구멍(2)을 상·하부금형(21)(22)으로 소정간격으로 천공시켜 공급조정부(30)로 보내게 되고 공급조정부(30)에서는 권취된 상태의 피금속판소재(1)를 완전히 펼쳐진 상태로 유지시킴과 아울러 파형성형부(40)의 작업진행속도에 맞춰 소재를 일직선상으로 공급시킨다.According to the present invention, the strip metal sheet material 1 wound on the supply plate 11 of the supply unit 10 is continuously supplied and sent to the punching unit 20. In the punching unit 20, the molded spiral tube 4 In consideration of the cutting length, the cutting hole 2 is drilled to the supply adjusting unit 30 by the upper and lower molds 21 and 22 at a predetermined interval, and wound up by the supply adjusting unit 30. The metal plate material 1 in a state is maintained in a fully unfolded state, and the material is supplied in a straight line in accordance with the working speed of the corrugated molding part 40.
파형성형부(40)에서는 금속판 소재를 소정의 산과 골을 가진 파형판(3)으로 만들고 그 파형판(3)은 투입안내판(50a)으로 투입되어 나선관성형부(50)로 보내게 된다.In the corrugated molding part 40, the metal plate material is made into a corrugated board 3 having a predetermined peak and valleys, and the corrugated board 3 is fed into the feeding guide plate 50a and sent to the spiral tubular molding part 50.
나선관성형부(50)에 투입된 파형판(3)의 하단은 성형안내롤(51)의 산(51a)과 골(51b)에 기워지고 상측의 성형보조롤(52)에 접지되어 나선관 감합방향으로 진행되어 나선관 원주곡면상으로 배치된 감합안내롤(53)에 의해 나선관형태로 둥글게 말려서 성형안내롤(51)에 재투입될때 파형판(3)의 선단부가 1피치씩 자연적으로 이동하여 감기게 된다.The lower end of the corrugated plate 3 introduced into the spiral pipe forming part 50 is inclined to the hill 51a and the valley 51b of the forming guide roll 51 and grounded to the upper side forming roll 52 so that the spiral pipe fitting direction is fitted. When it is rolled round in the form of a spiral tube by the fitting guide roll 53 disposed on the circumferential curved surface of the spiral tube, the tip of the corrugated plate 3 naturally moves by one pitch It is cold.
이렇게 1피치씩 자연이동으로 여러겹으로 중첩되어 다층나선관(4)으로 성형하고 성형안내롤(51)의 산(51a)과 골(51b)에 의해 인장작용만 일어나므로 압축작용으로 생기는 주름발생을 방지하게 됨과 아울러 소재가 롤링할때 성형안내롤(51)과 성형보조롤(52) 사이에서 억지끼움이 발생되지 않으므로 완성된 나선관 제품의 비틀림 및 내구성이 향상되며 성형보조롤(52)이 평면상으로 구성되어 있어 나선관 직경조절이 용이하므로 직경이 크고 작은 것을 다양하게 제작할 수 있고 나선관 성형부에 소재가 투입될 때 투입안내판(50a)에 의해 소재가 구부러지는 등의 불량발생요인을 제거할 수 있게 된다.Thus, the pitch is formed by multiply overlapping one by one by natural movement and forming into a multi-layer spiral tube (4), and only the tensioning action occurs by the acid (51a) and the bone (51b) of the forming guide roll (51). In addition, since the interference between the forming guide roll 51 and the forming auxiliary roll 52 does not occur when the material is rolled, the torsion and durability of the finished spiral tube product are improved, and the forming auxiliary roll 52 is Since it is made of flat surface, it is easy to adjust the diameter of spiral tube, so it can manufacture various things with large and small diameters. When the material is put into spiral tube molding part, it causes defects such as bending of material by input guide plate 50a. It can be removed.
이렇게 하여 다층나선관(4)으로 성형이 진행되는 과정에서 나선관이 설정된 길이만큼 도달하게 되면 천공부(20)에서 천공시킨 소재의 절단구멍(2)이 나선관의 1피치 산을 절단시킨 상태로 만들어 주므로 도 11에서와 같이 절단구멍(2)의 선단부와 말단부가 서로 엇갈리는 지점의 점선표시부(56)만을 절단칼(55)로 절단함으로서 절단작업을 마무리하므로 절단작업이 간편하고 절단부위가 매끄럽게 되어 나중에 배기관 등의 연결작업시에 용접 등을 용이하게 할 수 있게 된다.In this way, when the spiral tube reaches the set length in the process of forming into the multi-layer spiral tube 4, the cutting hole 2 of the material punched by the punching section 20 cuts one pitch of the spiral tube. Since the cutting operation is completed by cutting only the dotted line display portion 56 at the point where the front end and the end of the cutting hole 2 intersect with the cutting knife 55 as shown in FIG. 11, the cutting operation is simple and the cutting part is smooth. As a result, welding and the like can be easily performed at the time of connecting the exhaust pipe or the like.
이와 같이 본 발명은 권취상태의 띠금속판 소재를 연속적으로 공급하는 공급부와, 띠금속판 소재에 소정간격으로 절단구멍을 형성하는 천공부와, 소재의 공급간격 및 공급시기에 맞게 조절하는 공급조정부와, 소재를 파형판으로 절곡성형하는 파형성형부와, 파형판을 겹층으로 말아 나선관을 자연적으로 성형시키고 그 성형된 나선관을 간단하게 절단하는 방법으로 다층나선관을 생산할 수 있게 되어 생산성이 향상되고 양질의 제품을 얻을 수 있는 이점이 있는 것이다.As described above, the present invention provides a supply unit for continuously supplying a band metal sheet material in a wound state, a perforation unit for forming a cutting hole at a predetermined interval in the band metal plate material, a supply adjusting unit for adjusting the supply interval and supply timing of the material, It is possible to produce multi-layer spiral pipes by producing a corrugated molding part that bends the material into a corrugated plate, and by rolling the corrugated plate in layers to naturally form the spiral tube and simply cut the formed spiral tube. There is an advantage in obtaining a good quality product.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960046404A KR100208509B1 (en) | 1996-10-15 | 1996-10-15 | Deformation method and device of multilayer spiral pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960046404A KR100208509B1 (en) | 1996-10-15 | 1996-10-15 | Deformation method and device of multilayer spiral pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980027588A true KR19980027588A (en) | 1998-07-15 |
| KR100208509B1 KR100208509B1 (en) | 1999-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960046404A KR100208509B1 (en) | 1996-10-15 | 1996-10-15 | Deformation method and device of multilayer spiral pipe |
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| Country | Link |
|---|---|
| KR (1) | KR100208509B1 (en) |
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