KR20020065969A - Machining method of a screw for a reinforcement bar - Google Patents

Machining method of a screw for a reinforcement bar Download PDF

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Publication number
KR20020065969A
KR20020065969A KR1020010006092A KR20010006092A KR20020065969A KR 20020065969 A KR20020065969 A KR 20020065969A KR 1020010006092 A KR1020010006092 A KR 1020010006092A KR 20010006092 A KR20010006092 A KR 20010006092A KR 20020065969 A KR20020065969 A KR 20020065969A
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South Korea
Prior art keywords
screw
reinforcing bar
bar
rebar
die
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KR1020010006092A
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Korean (ko)
Inventor
김순분
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김순분
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Priority to KR1020010006092A priority Critical patent/KR20020065969A/en
Publication of KR20020065969A publication Critical patent/KR20020065969A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/022—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling combined with rolling splines, ribs, grooves or the like, e.g. using compound dies
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • E04C5/165—Coaxial connection by means of sleeves

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

PURPOSE: A screw tapping method of a screw-coupling bar is provided to obtain high tensile strength and to tap screws rapidly. CONSTITUTION: The screw tapping method of a screw-coupling bar(100) comprises the steps of cutting the bar(100) provided with a rib from one end to the other end as long as the appointed length(L) to have the appointed diameter(D), attaching a dice(110) provided with a compression part(112) and a screw part(114) having the appointed diameter(d) to a rolling machine to form screws on the bar(100), and putting one end of the bar(100) toward the compression part(112) of the dice(110) rotated by the rolling machine, so that the bar(100) is compressed through the compression part(112) and forms screw thread through the screw part(114).

Description

나사이음 철근의 나사 가공방법{Machining method of a screw for a reinforcement bar}Machining method of a screw for a reinforcement bar}

본 발명은 나사이음 철근의 나사 가공방법에 관한 것으로서, 더욱 상세하게는 나사가 가공되는 철근의 일단을 압축과 동시에 나사산을 가공할 수 있는 다이스를 구비함으로써, 높은 인장강도를 얻을 수 있으며, 빠른 시간내에 나사를 가공할 수 있는 나사이음 철근의 나사 가공방법에 관한 것이다.The present invention relates to a thread processing method of threaded reinforcing bar, and more particularly, by providing a die that can process a thread at the same time as compressing one end of the reinforcing bar, the high tensile strength can be obtained, fast time The present invention relates to a thread processing method of a threaded reinforcing bar that can process a thread inside.

일반적으로, 철근 콘크리트 구조는 콘크리트가 압축력을 부담하고, 철근이 인장력을 부담하는 구조로써 철근과 콘크리트의 결합에 의하여 이루어진다. 이와같은 철근은 일정한 길이를 가지는 규격품을 서로 이어가면서 시공해야만 하기 때문에 철근과 철근사이에는 소정의 간격이 발생하게된다. 이렇게 간격이 형성된 철근이 소요 인장력에 충분히 저항하기 위해서는 철근과 철근이 서로 긴밀하게 연결되어야 하며 이를 위해서는 겹치기이음 및 압접이음등이 있다. 한편, 근래에는 철근의 이음부분에 각종 연결구를 이용하여 연결하는 방법과 연결할 철근의 양단에 나사를 가공하여 연결하는 방법이 이용되고 있는 실정이다.Generally, the reinforced concrete structure is a structure in which the concrete bears the compressive force and the reinforcement bears the tensile force, and is made by combining the reinforcement with the concrete. Since the reinforcing bars must be constructed while connecting the standard products having a certain length to each other, a predetermined interval is generated between the reinforcing bars and the reinforcing bars. In order for the reinforcing bars to be sufficiently spaced in this way, the reinforcing bars and the reinforcing bars should be closely connected to each other. For this purpose, there are overlapping joints and pressure welding joints. On the other hand, in recent years, the method of connecting to the joint of the reinforcing bars using various connectors and the method of connecting by processing the screw on both ends of the reinforcing bars to be used.

전술한 철근에 나사를 가공하는 방법으로는 철근에 형성된 리브를 반절삭하여 절삭공구를 이용하여 나사를 형성하는 방법, 나사산이 형성된 프레스로 철근의 끝단을 압착하는 방법 및 나사가공후 열처리 하는 방법등이 있다.The above-mentioned method of processing a screw in rebar is a method of forming a screw using a cutting tool by cutting a rib formed in the rebar, a method of pressing the end of the rebar with a threaded press, and a method of heat treatment after screw processing. There is this.

그러나, 전술한 방법들은 철근에 형성되는 나사산이 불명확하게 형성될 뿐만 아니라 나사를 형성하기 위해서 많은 비용과 시간이 소요되며, 원하는 인장강도를 얻을 수 없는 문제점이 있었다.However, the above-described methods have a problem that not only the thread formed on the reinforcing bar is formed indefinitely, but also requires a lot of cost and time to form the screw, and that the desired tensile strength cannot be obtained.

본 발명은 나사가 가공되는 철근의 일단을 압축과 동시에 나사산을 가공할 수 있는 다이스를 구비함으로써, 높은 인장강도를 얻을 수 있으며, 빠른 시간내에 나사를 가공할 수 있는 나사이음 철근의 나사 가공방법을 제공하는데 있다.The present invention is provided with a die that can process a thread at the same time as compressing one end of the reinforcing bar, the high tensile strength can be obtained, the screw processing method of the threaded reinforcing bar that can process the screw in a short time To provide.

도 1은 본 발명에 따른 나사이음 철근의 나사 가공공정을 나타낸 도면이다.1 is a view showing a screw processing process of the screw joint rebar according to the present invention.

<도면의주요부분에대한부호의설명>Explanation of symbols on the main parts of the drawing

100 : 철근102 : 리브100: rebar 102: rib

110 : 다이스112 : 압축부110: die 112: compression unit

114 : 나사부114: screw part

상기와 같은 본 발명의 목적을 달성하기 위해서 본 발명은,In order to achieve the object of the present invention as described above, the present invention,

나사이음 철근의 나사 가공방법에 있어서,In the thread processing method of threaded rebar,

리브가 형성된 철근의 일단에서부터 타단측으로 일정길이만큼 절삭하여 소정의 직경을 가지도록 절삭하고, 철근의 절삭되면 철근에 나사를 형성하기 위해서 내측 원주면상 소정의 직경을 가지는 압축부 및 나사부가 형성된 다이스를 전조기계에 장착하며, 전조기계에 의해서 회전하는 다이스의 압축부측으로 철근의 일단을 투입하면 투입된 철근이 압축부에 의해서 압착되면서 관통하게 되고, 압축부를 관통한 철근은 나사부를 지나면서 나사산이 형성되는 나사이음 철근의 나사 가공방법을 제공한다.Cutting to a predetermined length by cutting a predetermined length from one end of the rib-formed rebar to the other end side, and rolling the die formed with a compression part and a screw part having a predetermined diameter on the inner circumferential surface to form a screw in the rebar when the rebar is cut. Mounted on the machine, when one end of the rebar is inserted into the compression part of the die that is rotated by the rolling machine, the reinforcing bar is pressed by the compression part and penetrated. Provides a method of threading a jointed rebar.

이상에서 설명한 바와 같이, 본 발명에 따르면, 나사가 가공되는 철근의 일단을 압축과 동시에 나사산을 가공할 수 있는 다이스를 구비함으로써, 높은 인장강도를 얻을 수 있으며, 빠른 시간내에 나사를 가공할 수 있다.As described above, according to the present invention, by providing a die capable of processing a thread at the same time as compressing one end of the reinforcing bar, the high tensile strength can be obtained, and the screw can be machined quickly. .

이하, 첨부된 도면들을 참조하여 본 발명의 바람직한 일 실시예에 따른 나사이음 철근의 나사 가공방법에 대해 설명한다.Hereinafter, with reference to the accompanying drawings will be described a screw processing method of a screw joint rebar according to an embodiment of the present invention.

도 1은 본 발명에 따른 나사이음 철근의 나사 가공공정을 나타낸 도면이다.도 1을 참조하면서, 본 발명에 따른 나사이음 철근의 나사 가공방법은 리브(102)가 형성된 철근(100)의 일단에서부터 타단측으로 일정길이(L)만큼 절삭하여 소정의 직경(D)을 가지도록 절삭한다. 바람직하게는, 절삭길이(L)는 40㎜∼80㎜의 길이를 가지도록 절삭한다.1 is a view showing a screw processing process of a threaded rebar according to the present invention. Referring to Fig. 1, the screw processing method of a threaded reinforcing bar according to the present invention is from one end of the reinforcing bar 100, the rib 102 is formed. The other end side is cut by a predetermined length (L) to cut to have a predetermined diameter (D). Preferably, the cutting length L is cut to have a length of 40 mm to 80 mm.

철근(100)의 일단이 절삭되면, 철근(100)에 나사를 형성하기 위해서 내측 원주면상 소정의 직경(d)을 가지는 압축부(112) 및 나사부(114)가 형성된 다이스(110)(도 2 참조)를 전조기계(도시되지 않음)에 장착한다. 이때, 압축부(112)의 타측에는 나사부(114)가 일체로 형성된다. 바람직하게는 직경(d)은 직경(D)보다 작은 지름을 가진다.Once one end of the rebar 100 is cut, a die 110 having a compression section 112 and a thread section 114 having a predetermined diameter d on the inner circumferential surface in order to form a screw in the rebar 100 (FIG. 2) ) Is mounted on a rolling machine (not shown). At this time, the screw portion 114 is integrally formed on the other side of the compression unit 112. Preferably the diameter (d) has a diameter smaller than the diameter (D).

이와같이 전조기계에 다이스(110)가 장착되면 전조기계에 의해서 회전하는 다이스(110)의 압축부(112)측으로 절삭된 철근(100)의 일단을 투입한다. 이때, 투입된 철근(100)의 압축부(112)에 의해서 압착되면서 압축부(112)를 관통하게 되고, 압축부(112)를 관통한 철근(100)은 나사부(114)를 지나면서 철근(100)에 나사산 형성된다.In this way, when the die 110 is mounted on the rolling machine, one end of the rebar 100 cut into the compression unit 112 side of the die 110 rotated by the rolling machine is introduced. At this time, while being compressed by the compression section 112 of the reinforcement 100 is inserted into the compression section 112, the rebar 100 penetrating the compression section 112 passes through the threaded section 114, the reinforcing bar 100 Threaded).

전술한 바와 같이, 본 발명에 따른 나사이음 철근의 나사 가공방법은 다이스(110)의 압축부(112)에 의해서 투입되는 철근(100)을 먼저 압착하여 나사산을 형성하기 때문에 정확한 나사산을 형상할 뿐만 아니라 높은 인장강도를 얻을 수 있으며, 작업시간 및 작업비용을 절감할 수 있는 잇점이 있다.As described above, the screw processing method of the threaded reinforcing bar according to the present invention not only forms an accurate thread because the first step is to form a thread by pressing the reinforcing bar 100 introduced by the compression unit 112 of the die 110. In addition, high tensile strength can be obtained, and work time and cost can be reduced.

상기에서는 본 발명의 바람직한 실시예를 참조하여 설명하였지만, 해당기술 분야의 숙련된 당업자는 특허청구범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다.Although described above with reference to a preferred embodiment of the present invention, those skilled in the art can be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims You will understand.

Claims (3)

나사이음 철근의 나사 가공방법에 있어서,In the thread processing method of threaded rebar, 리브(102)가 형성된 상기 철근(100)의 일단에서부터 타단측으로 일정길이(L)만큼 절삭하여 소정의 직경(D)을 가지도록 절삭하고, 상기 철근(100)의 절삭되면 상기 철근(100)에 나사를 형성하기 위해서 내측 원주면상 소정의 직경(d)을 가지는 압축부(112) 및 나사부(114)가 형성된 다이스(110)를 전조기계에 장착하며, 상기 전조기계에 의해서 회전하는 상기 다이스(110)의 압축부(112)측으로 상기 철근(100)의 일단을 투입하고, 이에의해 상기 철근(100)이 상기 압축부(112)에 의해서 압착되면서 관통하게 되며, 상기 압축부(112)를 관통한 상기 철근(100)은 상기 나사부(114)를 지나면서 나사산이 형성되는 것을 특징으로 하는 나사이음 철근의 나사 가공방법.The rib 102 is cut from one end of the reinforcing bar 100 on the other end side by a predetermined length L to cut to have a predetermined diameter D, and when the reinforcing bar 100 is cut, the reinforcing bar 100 is cut. In order to form a screw, a die 110 having a predetermined diameter d on the inner circumferential surface and a die 110 having a threaded portion 114 is mounted on a rolling machine, and the die 110 is rotated by the rolling machine. One end of the reinforcing bar 100 to the compression unit 112 side of the), by which the reinforcing bar 100 is pressed by the compression unit 112 and penetrates, and penetrates the compression unit 112 The reinforcing bar 100 is a thread processing method of the threaded reinforcing bar characterized in that the thread is formed while passing through the threaded portion (114). 제 1 항에 있어서, 상기 절삭길이(L)는 40㎜∼80㎜의 길이를 가지는 것을 특징으로 하는 나사이음 철근의 나사 가공방법.The method of claim 1, wherein the cutting length (L) has a length of 40 mm to 80 mm. 제 1 항에 있어서, 상기 직경(d)은 상기 직경(D)보다 작은 것을 특징으로 하는 나사이음 철근의 나사 가공방법.The method of claim 1, wherein the diameter (d) is smaller than the diameter (D).
KR1020010006092A 2001-02-08 2001-02-08 Machining method of a screw for a reinforcement bar KR20020065969A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100820184B1 (en) * 2007-02-23 2008-04-08 주식회사부원비엠에스 Forming method for connecting part of concrete reinforcements

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990076461A (en) * 1998-03-31 1999-10-15 정경옥 Connection part structure of deformed bar for concrete reinforcement and processing method
KR19990076279A (en) * 1998-03-31 1999-10-15 노인환 Mechanical joint method of concrete-reinforced rod
KR19990078438A (en) * 1998-03-31 1999-10-25 정경옥 Method of working connection end of deformed bar for reinforcing concrete, deformed bar worked by the method and structure of connecting deformed bar
KR19990080123A (en) * 1998-04-13 1999-11-05 정경옥 Connection part structure of deformed bar for concrete reinforcement and processing method
KR200183217Y1 (en) * 1999-12-22 2000-05-15 주식회사화산유기제작소 Device for machining iron reinforcing bar
KR20010001191A (en) * 1999-06-02 2001-01-05 김영구 Device for connecting concrete reinforcements
KR200209431Y1 (en) * 2000-07-04 2001-01-15 주식회사두하상사 Machining apparatus for steel reinforcing bar

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990076461A (en) * 1998-03-31 1999-10-15 정경옥 Connection part structure of deformed bar for concrete reinforcement and processing method
KR19990076279A (en) * 1998-03-31 1999-10-15 노인환 Mechanical joint method of concrete-reinforced rod
KR19990078438A (en) * 1998-03-31 1999-10-25 정경옥 Method of working connection end of deformed bar for reinforcing concrete, deformed bar worked by the method and structure of connecting deformed bar
KR19990080123A (en) * 1998-04-13 1999-11-05 정경옥 Connection part structure of deformed bar for concrete reinforcement and processing method
KR20010001191A (en) * 1999-06-02 2001-01-05 김영구 Device for connecting concrete reinforcements
KR200183217Y1 (en) * 1999-12-22 2000-05-15 주식회사화산유기제작소 Device for machining iron reinforcing bar
KR200209431Y1 (en) * 2000-07-04 2001-01-15 주식회사두하상사 Machining apparatus for steel reinforcing bar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100820184B1 (en) * 2007-02-23 2008-04-08 주식회사부원비엠에스 Forming method for connecting part of concrete reinforcements

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