WO2015102239A1 - Method for manufacturing rock bolt - Google Patents

Method for manufacturing rock bolt Download PDF

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Publication number
WO2015102239A1
WO2015102239A1 PCT/KR2014/011677 KR2014011677W WO2015102239A1 WO 2015102239 A1 WO2015102239 A1 WO 2015102239A1 KR 2014011677 W KR2014011677 W KR 2014011677W WO 2015102239 A1 WO2015102239 A1 WO 2015102239A1
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WO
WIPO (PCT)
Prior art keywords
metal plate
rock bolt
sides
semi
manufacturing
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PCT/KR2014/011677
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French (fr)
Korean (ko)
Inventor
김진형
김문국
이인규
Original Assignee
주식회사 티에스테크노
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Publication of WO2015102239A1 publication Critical patent/WO2015102239A1/en

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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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/24—Making other particular articles nuts or like thread-engaging 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs

Definitions

  • the present invention relates to a rock bolt, and more particularly, to a method for producing a rock bolt that can increase the production efficiency of the rock bolt by reducing the process of producing the rock bolt.
  • the structure of a general rock bolt has a structure in which a cap is provided at the front and rear ends of the hollow body inflated by the fluid supplied to the hollow in the state in which the portion is pressed in a concave shape along its circumferential direction.
  • the fluid is injected into the hollow body of the lock bolt at a high pressure to allow the installation of the lock bolt at a desired position.
  • the metal plate processed to have a circular cross section is deformed by using a plurality of roll molds having a larger depth of indentation and a smaller diameter so as to form an indentation groove recessed inwardly on the outer surface of the hollow body on the side opposite the joining site. By doing so, the manufacture of the rock bolt is made.
  • the roll die is passed through many steps only to process the metal plate into a circular cross section, and the recess groove is gradually formed on one side of the outer surface while reducing the diameter of the metal plate processed to have a circular cross section.
  • the roll mold of several stages in addition to the formation there is a problem in that it takes a lot of time to manufacture the rock bolt productivity is lowered.
  • the present invention has been made in order to solve the above problems, by reducing the process of manufacturing a rock bolt to be able to quickly manufacture a rock bolt while at the same time reducing the manufacturing time required to manufacture a rock bolt rock bolt It is an object of the present invention to provide a method for producing a rock bolt that can improve the productivity of the rock bolt by increasing the production speed of.
  • the first step of seating a plate-shaped metal plate with a flat surface is formed in a roll mold having a curved outer surface;
  • the center region and both ends of the metal plate may be processed to be bent upward, and at the same time, the stretching may be performed to process the plate surface between the center region and the both ends to be bent downward.
  • the semi-circular member may include a flat portion having a groove formed in a central region, a curved portion formed to be bent upward at both ends of the flat portion, and the end portions of which are in contact with each other, and a joint portion in which end portions of the curved portions are in contact with each other. have.
  • the center of the lower surface of the semi-circular member may be recessed inward.
  • the plurality of roll molds having a curved outer surface may be linearly disposed to process the metal plate while being sequentially moved.
  • the method for manufacturing a rock bolt according to the present invention reduces the manufacturing time of the rock bolt by reducing the process for manufacturing the rock bolt and at the same time reducing the manufacturing time of the rock bolt. This has the effect of improving the productivity.
  • 1 to 4 is a plan view sequentially showing a process of bending the metal plate by the method for manufacturing a lock bolt according to an embodiment of the present invention
  • Figure 5 is a plan view showing the overlapping process of bending the metal plate by the method of manufacturing a lock bolt according to an embodiment of the present invention
  • 6 to 8 are plan views sequentially illustrating a process in which grooves are formed and compressed in a metal plate welded after being bent by the method for manufacturing a rock bolt according to an embodiment of the present invention.
  • FIG. 9 is a plan view illustrating a process in which grooves are formed and compressed on a metal plate by overlapping the rock bolt manufacturing method according to an embodiment of the present invention.
  • FIG. 10 is a flowchart sequentially describing a method for manufacturing a rock bolt according to an embodiment of the present invention.
  • FIGS. 6 to 8 sequentially illustrate a process in which grooves are formed and compressed on a metal plate welded after being bent by a method of manufacturing a lock bolt according to an embodiment of the present invention.
  • 9 is a plan view illustrating a process in which grooves are formed and compressed on a metal plate by a method for manufacturing a lock bolt according to an embodiment of the present invention
  • FIG. 10 is a plan view illustrating an embodiment of the present invention. It is a flowchart which sequentially describes the method of manufacturing a lock bolt.
  • the rock bolt manufacturing method As shown in these drawings, the rock bolt manufacturing method according to the present invention, the first step of seating the plate-shaped metal plate 100 with a flat surface formed on the roll mold 200 is formed with a curved outer surface, and the roll mold ( A second step of driving the plate 200 so that both sides of the plate surface of the metal plate 100 is bent, and a third process of bending both sides of the metal plate 100 so as to gradually increase the curvature so that both ends thereof are in contact with each other. And a fourth step of forming a semicircular member 300 having semicircular longitudinal cross-sections formed when both sides of the metal plate 100 are brought into contact with each other by joining each other. It is configured to include a fifth step of processing so that the outer surface of both sides gradually close to each other while being concave.
  • the central region and both ends of the metal plate 100 are processed to be bent upwards, and at the same time, the plate surface between the central region and the both ends is lowered.
  • the stretching step is processed to bend.
  • both sides of the metal plate 100 can be easily bent upward, and the grooves 311 are centered on the metal plate 100. There is an effect that can be formed at the correct position of the area.
  • the metal plate 100 cut to a predetermined length is seated on the roll mold 200 having a curved outer surface to be processed.
  • the length of the cut metal plate 100 becomes the length of the rock bolt, and the plate surface of the metal plate 100 is formed as the outer surface of the rock bolt.
  • the material of the metal plate 100 may be any material as long as it is a metal material capable of withstanding the pressure of the fluid injected into the rock bolt when the rock bolt is constructed, and the groove 311 formed on the outer surface of the rock bolt may be formed. Considering that it is expanded and installed to the outside, it is preferable to be provided with a ductile material while maintaining the rigidity of a certain degree or more.
  • the roll mold 200 When the metal plate 100 is seated on the roll mold 200, the roll mold 200 is driven to rotate to allow the metal plate 100 to pass between the roll mold 200 and the roll mold 200, thereby opening the central region of the metal plate 200. Both sides are processed to bend upward.
  • a plurality of roll molds 200 for processing both sides of the metal plate 200 to be bent upwards are provided, and as the processing of the metal plate 200 proceeds, the roll molds 200 are gradually disposed so as to increase the curvature formed on the outer surface of the roll mold 200. It is desirable to be.
  • both ends of the metal plate 200 are joined by a welding method.
  • the semicircular member 300 is formed to be bent on both sides.
  • the semi-circular member 300 is a flat portion 310 having a groove 311 is formed in the center region, and the curved portion 320 is formed to be bent upward at both ends of the flat portion 310 and the ends thereof are in contact with each other, An end portion of the curved portion 320 in contact with each other may be formed as a bonded portion 330.
  • the flat part 310 is a part which is flattened by being unfolded by the processing of the roll mold 200 after the central area is bent upward so as to form the groove in the central area by the above-described stretching step.
  • the flat portion 310 Since the flat portion 310 is flattened after the central region is bent upward by the stretching step, the flat portion 310 is gradually processed so that the outer surfaces of both sides gradually approach each other during the subsequent process of improving the lock bolt. In the center region of the groove 311 is an effect that can be easily formed.
  • the curved portion 320 is a portion in which deformation occurs in a curved form while being transferred between a plurality of roll molds 200 whose curvature gradually increases as the manufacture of the rock bolt progresses, and after the processing is completed, the curved portions 320 on both sides are Each is a side of the rock bolt.
  • Joining portion 330 is a portion where these ends are joined to each other by welding or the like in the state that the ends of the bent curved portion 320 is in contact, grooves on the outer surface of the semi-circular member 300 opposite to the joining portion 330 311 is formed.
  • the groove 311 is formed and the groove 311 is formed with a diameter smaller than the diameter of the semi-circular member 300.
  • the second half process with the cross section of the phase proceeds.
  • the groove 311 is formed in the central region of the flat portion 310 while receiving an external force in a direction in which the curved portion 320 of the semi-circular member 300 gradually approaches.
  • die 200 is arrange
  • the semicircular member 300 is formed such that the groove 311 is formed in the same manner as the longitudinal section of the rock bolt, and the outer surface except the groove 311 is formed to be bent in a circular shape.
  • the flat plate-like metal plate 100 is processed into a lock bolt through the semi-circular member 300 by the progress of the processes as described above, and the roll mold 200 used in such a process is arranged linearly so that the metal plate 100 is The process is made while moving between the roll mold 200 in sequence.

Abstract

The present invention relates to a method for manufacturing a rock bolt, comprising: a first step for seating a plate-shaped metal plate having a flat surface on a roll mold having a curved outer surface; a second step for driving the roll mold to process both sides of the surface of the metal plate so as to be curved; a third step for processing the both sides of the surface of the metal plate to be curved at a gradually increasing curvature so that the ends of the both sides of the surface of the metal plate can contact each other; a fourth step for joining the ends of the contacted both sides of the metal plate to form a semi-circular member having a semi-circular longitudinal section with both sides of the lower surface of the semi-circular member curved; and a fifth step for processing the outer surface of the both sides of the semi-circular member to gradually become close to each other by making the center of the lower surface of the semi-circular member be inwardly concave. Accordingly, the present invention allows a rock bolt to be quickly manufactured by reducing the process for manufacturing a rock bolt, and simultaneously enhances the productivity of the rock bolt by reducing the manufacturing time thereof.

Description

락볼트 제조방법Rock bolt manufacturing method
본 발명은 락볼트에 관한 것으로서, 더욱 상세하게는, 락볼트를 생산하는 공정을 줄임으로써 락볼트의 생산 효율을 증대시킬 수 있는 락볼트 제조방법에 관한 것이다.The present invention relates to a rock bolt, and more particularly, to a method for producing a rock bolt that can increase the production efficiency of the rock bolt by reducing the process of producing the rock bolt.
일반적인 락볼트의 구조는 그 둘레방향을 따라 일부분이 요입된 형태로 눌려진 상태에서 그 내부의 중공에 공급되는 유체에 의해 팽창되는 중공형 바디의 전단과 후단에 각각 캡이 구비된 구조를 갖는다. The structure of a general rock bolt has a structure in which a cap is provided at the front and rear ends of the hollow body inflated by the fluid supplied to the hollow in the state in which the portion is pressed in a concave shape along its circumferential direction.
그리고, 후단에 삽입된 상기 캡에 별도의 커플링을 이용하여 유체공급기와 연결함으로써 유체를 고압으로 락볼트의 중공형 바디 내부로 주입함으로써 원하는 위치에 락볼트의 설치가 가능하도록 한다. Then, by connecting the fluid supply using a separate coupling to the cap inserted into the rear end, the fluid is injected into the hollow body of the lock bolt at a high pressure to allow the installation of the lock bolt at a desired position.
이러한 락볼트를 제조하는 종래의 락볼트 제조방법은, 일정한 길이를 갖는 금속판을 원형 단면을 갖도록 권취시킨 후에 상호 접촉되는 양단부를 용접 등의 방법에 의하여 접합한다. In the conventional rock bolt manufacturing method for manufacturing such rock bolts, after winding a metal plate having a constant length to have a circular cross section, the both ends that are in contact with each other are joined by a method such as welding.
그리고, 접합 부위 대향측의 중공형 바디의 외면에 내측으로 요입된 요입홈을 형성할 수 있도록 점진적으로 요입 깊이가 커지며 직경이 작아지는 복수의 롤 금형을 이용하여 원형 단면을 갖도록 가공된 금속판을 변형함으로써 락볼트의 제조가 이루어지게 된다. Further, the metal plate processed to have a circular cross section is deformed by using a plurality of roll molds having a larger depth of indentation and a smaller diameter so as to form an indentation groove recessed inwardly on the outer surface of the hollow body on the side opposite the joining site. By doing so, the manufacture of the rock bolt is made.
그런데, 이러한 종래의 락볼트 제조방법에 있어서, 금속판을 원형 단면으로 가공하는데에만 많은 단계의 롤 금형을 거치게 되며, 원형 단면을 갖도록 가공된 금속판의 직경을 줄이면서 그 외면 일측에 상기 요입홈을 점진적으로 형성하는데에도 추가적으로 여러 단계의 롤 금형을 거치게 되므로 락볼트를 제조하는데 많은 시간이 소요되어 생산성이 저하된다는 문제점이 있다. By the way, in the conventional method for manufacturing a lock bolt, the roll die is passed through many steps only to process the metal plate into a circular cross section, and the recess groove is gradually formed on one side of the outer surface while reducing the diameter of the metal plate processed to have a circular cross section. In addition, since it is passed through the roll mold of several stages in addition to the formation, there is a problem in that it takes a lot of time to manufacture the rock bolt productivity is lowered.
본 발명은 상기와 같은 문제를 해결하기 위하여 안출된 것으로서, 락볼트를 제조하는 공정을 줄임으로써 락볼트를 신속하게 제조할 수 있도록 함과 동시에 락볼트를 제조하는데 소요되는 제조 시간을 절감하여 락볼트의 생산 속도를 높임으로써 락볼트의 생산성을 향상시킬 수 있는 락볼트 제조방법을 제공하는데 그 목적이 있다.The present invention has been made in order to solve the above problems, by reducing the process of manufacturing a rock bolt to be able to quickly manufacture a rock bolt while at the same time reducing the manufacturing time required to manufacture a rock bolt rock bolt It is an object of the present invention to provide a method for producing a rock bolt that can improve the productivity of the rock bolt by increasing the production speed of.
상기와 같은 본 발명의 목적을 달성하기 위한 락볼트 제조방법은, 평탄면이 형성된 판상의 금속판을 굴곡진 외면이 형성된 롤 금형에 안착시키는 제1단계와; 상기 롤 금형을 구동시켜 상기 금속판의 판면 양측이 굴곡지도록 가공하는 제2단계와; 상기 금속판의 양측이 점진적으로 곡률이 커지도록 굴곡지게 가공하여 상기 양측 단부가 상호 접촉되도록 가공하는 제3단계와; 상기 금속판의 접촉된 양측 단부를 상호 접합시켜 하면 양측이 굴곡지게 형성된 반원형상의 종단면을 갖는 반원형 부재를 형성하는 제4단계와; 상기 반원형 부재의 하면 중앙이 내측으로 요입되도록 하면서 양측 외면이 상호 점진적으로 근접하도록 가공하는 제5단계를; 포함한 것을 특징으로 한다. Rock bolt manufacturing method for achieving the object of the present invention as described above, the first step of seating a plate-shaped metal plate with a flat surface is formed in a roll mold having a curved outer surface; A second step of driving the roll die to process both sides of the plate surface of the metal plate to bend; A third step of processing the both sides of the metal plate to bend so that the curvature gradually increases so that both ends thereof are in contact with each other; A fourth step of forming a semi-circular member having semi-circular longitudinal cross-sections formed by bending both sides of the metal plate to be in contact with each other; A fifth step of processing such that both outer surfaces thereof are gradually approached to each other while the center of the lower surface of the semi-circular member is recessed inwardly; It is characterized by including.
여기서, 상기 제1단계 이전에 상기 금속판의 중앙 영역과 양측 단부가 상측으로 굴곡지도록 가공함과 동시에 상기 중앙 영역과 상기 양측 단부 사이의 판면은 하측으로 굴곡지도록 가공하는 스트레칭 단계를 진행할 수 있다. Here, before the first step, the center region and both ends of the metal plate may be processed to be bent upward, and at the same time, the stretching may be performed to process the plate surface between the center region and the both ends to be bent downward.
그리고, 상기 반원형 부재는 중앙 영역에 요홈이 형성된 평탄부와, 상기 평탄부의 양측 단부에서 상향 굴곡지게 형성되어 그 단부가 상호 접촉된 만곡부와, 상호 접촉된 상기 만곡부의 단부가 접합된 접합부로 이루어질 수 있다. The semi-circular member may include a flat portion having a groove formed in a central region, a curved portion formed to be bent upward at both ends of the flat portion, and the end portions of which are in contact with each other, and a joint portion in which end portions of the curved portions are in contact with each other. have.
또한, 상기 평탄부에 형성된 상기 요홈에 의하여 상기 만곡부 양측이 점진적으로 근접하게 가공되면 상기 반원형 부재의 하면 중앙이 내측으로 요입되도록 할 수 있다. In addition, when both sides of the curved portion are gradually processed by the groove formed in the flat portion, the center of the lower surface of the semi-circular member may be recessed inward.
아울러, 굴곡진 외면이 형성된 복수의 상기 롤 금형은 선형으로 배치되어 상기 금속판이 순차적으로 이동되면서 가공할 수 있다. In addition, the plurality of roll molds having a curved outer surface may be linearly disposed to process the metal plate while being sequentially moved.
이상에서 살펴본 바와 같이 본 발명에 의한 락볼트 제조방법은, 락볼트를 제조하는 공정을 줄임으로써 락볼트를 신속하게 제조할 수 있도록 함과 동시에 락볼트를 제조하는데 소요되는 제조 시간을 절감하여 락볼트의 생산성을 향상시킬 수 있는 효과가 있다. As described above, the method for manufacturing a rock bolt according to the present invention reduces the manufacturing time of the rock bolt by reducing the process for manufacturing the rock bolt and at the same time reducing the manufacturing time of the rock bolt. This has the effect of improving the productivity.
도 1 내지 도 4는 본 발명의 일 실시예에 따른 락볼트 제조방법에 의하여 금속판이 절곡되는 과정을 순차적으로 도시한 평면도이고,1 to 4 is a plan view sequentially showing a process of bending the metal plate by the method for manufacturing a lock bolt according to an embodiment of the present invention,
도 5는 본 발명의 일 실시예에 따른 락볼트 제조방법에 의하여 금속판이 절곡되는 과정을 중첩시켜 도시한 평면도이며,Figure 5 is a plan view showing the overlapping process of bending the metal plate by the method of manufacturing a lock bolt according to an embodiment of the present invention,
도 6 내지 도 8은 본 발명의 일 실시예에 따른 락볼트 제조방법에 의하여 절곡된 후에 용접이 이루어진 금속판에 요홈이 형성되어 압축되는 과정을 순차적으로 도시한 평면도이고,6 to 8 are plan views sequentially illustrating a process in which grooves are formed and compressed in a metal plate welded after being bent by the method for manufacturing a rock bolt according to an embodiment of the present invention.
도 9는 본 발명의 일 실시예에 따른 락볼트 제조방법에 의하여 금속판에 요홈이 형성되어 압축되는 과정을 중첩시켜 도시한 평면도이며,9 is a plan view illustrating a process in which grooves are formed and compressed on a metal plate by overlapping the rock bolt manufacturing method according to an embodiment of the present invention.
도 10은 본 발명의 일 실시예에 따른 락볼트 제조방법을 순차적으로 기재한 흐름도이다. 10 is a flowchart sequentially describing a method for manufacturing a rock bolt according to an embodiment of the present invention.
이하에서 본 발명의 일 실시예에 따른 락볼트 제조방법을 첨부한 도면에 의거하여 상세히 설명한다.Hereinafter, a rock bolt manufacturing method according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 1 내지 도 4는 본 발명의 일 실시예에 따른 락볼트 제조방법에 의하여 금속판이 절곡되는 과정을 순차적으로 도시한 평면도이고, 도 5는 본 발명의 일 실시예에 따른 락볼트 제조방법에 의하여 금속판이 절곡되는 과정을 중첩시켜 도시한 평면도이며, 도 6 내지 도 8은 본 발명의 일 실시예에 따른 락볼트 제조방법에 의하여 절곡된 후에 용접이 이루어진 금속판에 요홈이 형성되어 압축되는 과정을 순차적으로 도시한 평면도이고, 도 9는 본 발명의 일 실시예에 따른 락볼트 제조방법에 의하여 금속판에 요홈이 형성되어 압축되는 과정을 중첩시켜 도시한 평면도이며, 도 10은 본 발명의 일 실시예에 따른 락볼트 제조방법을 순차적으로 기재한 흐름도이다. 1 to 4 are plan views sequentially illustrating a process of bending a metal plate by a method for manufacturing a lock bolt according to an embodiment of the present invention, and FIG. 5 is a method for manufacturing a lock bolt according to an embodiment of the present invention. 6 is a plan view illustrating the overlapping process of bending a metal plate, and FIGS. 6 to 8 sequentially illustrate a process in which grooves are formed and compressed on a metal plate welded after being bent by a method of manufacturing a lock bolt according to an embodiment of the present invention. 9 is a plan view illustrating a process in which grooves are formed and compressed on a metal plate by a method for manufacturing a lock bolt according to an embodiment of the present invention, and FIG. 10 is a plan view illustrating an embodiment of the present invention. It is a flowchart which sequentially describes the method of manufacturing a lock bolt.
이들 도면에 도시된 바와 같이, 본 발명에 따른 락볼트 제조방법은, 평탄면이 형성된 판상의 금속판(100)을 굴곡진 외면이 형성된 롤 금형(200)에 안착시키는 제1단계와, 롤 금형(200)을 구동시켜 금속판(100)의 판면 양측이 굴곡지도록 가공하는 제2단계와, 금속판(100)의 양측이 점진적으로 곡률이 커지도록 굴곡지게 가공하여 상기 양측 단부가 상호 접촉되도록 가공하는 제3단계와, 금속판(100)의 접촉된 양측 단부를 상호 접합시켜 하면 양측이 굴곡지게 형성된 반원형상의 종단면을 갖는 반원형 부재(300)를 형성하는 제4단계와, 반원형 부재(300)의 하면 중앙이 내측으로 요입되도록 하면서 양측 외면이 상호 점진적으로 근접하도록 가공하는 제5단계를 포함하여 구성되어 있다. As shown in these drawings, the rock bolt manufacturing method according to the present invention, the first step of seating the plate-shaped metal plate 100 with a flat surface formed on the roll mold 200 is formed with a curved outer surface, and the roll mold ( A second step of driving the plate 200 so that both sides of the plate surface of the metal plate 100 is bent, and a third process of bending both sides of the metal plate 100 so as to gradually increase the curvature so that both ends thereof are in contact with each other. And a fourth step of forming a semicircular member 300 having semicircular longitudinal cross-sections formed when both sides of the metal plate 100 are brought into contact with each other by joining each other. It is configured to include a fifth step of processing so that the outer surface of both sides gradually close to each other while being concave.
본 발명에 따라 락볼트를 제조하기 위해서는 우선, 상기 제1단계 이전에 금속판(100)의 중앙 영역과 양측 단부가 상측으로 굴곡지도록 가공함과 동시에 상기 중앙 영역과 상기 양측 단부 사이의 판면은 하측으로 굴곡지도록 가공하는 스트레칭 단계를 진행하게 된다. In order to manufacture the rock bolt according to the present invention, first, before the first step, the central region and both ends of the metal plate 100 are processed to be bent upwards, and at the same time, the plate surface between the central region and the both ends is lowered. The stretching step is processed to bend.
이러한 스트레칭 단계에 의하여 금속판(100)의 양측을 상측으로 굴곡지게 형성하는 후속 공정에서 금속판(100)의 양측이 상측으로 용이하게 굴곡지게 할 수 있을 뿐만 아니라, 요홈(311)이 금속판(100) 중앙 영역의 정확한 위치에 형성할 수 있는 효과가 있다. In the subsequent process of forming both sides of the metal plate 100 to be bent upward by the stretching step, both sides of the metal plate 100 can be easily bent upward, and the grooves 311 are centered on the metal plate 100. There is an effect that can be formed at the correct position of the area.
스트레칭 단계 이후에는 일정한 길이로 절단된 금속판(100)을 가공하고자 하는 굴곡진 외면이 형성된 롤 금형(200)에 안착시킨다. After the stretching step, the metal plate 100 cut to a predetermined length is seated on the roll mold 200 having a curved outer surface to be processed.
금속판(100)을 가공하면 절단된 금속판(100)의 길이는 락볼트의 길이가 되며, 금속판(100)의 판면이 락볼트의 외면으로 형성된다. When the metal plate 100 is processed, the length of the cut metal plate 100 becomes the length of the rock bolt, and the plate surface of the metal plate 100 is formed as the outer surface of the rock bolt.
이러한 금속판(100)의 재질은 락볼트를 시공시에 락볼트의 내부에 주입되는 유체의 압력을 견뎌낼 수 있는 금속재질이라면 어떠한 재질이라도 무방하며 락볼트가 그 외면 일측에 형성된 요홈(311)이 외측으로 펼쳐져서 팽창되어 설치됨을 감안한다면 일정 정도 이상의 강성을 유지하면서 연성이 좋은 재질로 구비되는 것이 바람직하다. The material of the metal plate 100 may be any material as long as it is a metal material capable of withstanding the pressure of the fluid injected into the rock bolt when the rock bolt is constructed, and the groove 311 formed on the outer surface of the rock bolt may be formed. Considering that it is expanded and installed to the outside, it is preferable to be provided with a ductile material while maintaining the rigidity of a certain degree or more.
금속판(100)이 롤 금형(200)에 안착되면 롤 금형(200)을 회전구동시켜 금속판(100)이 롤 금형(200)과 롤 금형(200) 사이를 통과하면서 금속판(200)의 중앙 영역을 제외한 양측이 상측으로 굴곡지도록 가공한다. When the metal plate 100 is seated on the roll mold 200, the roll mold 200 is driven to rotate to allow the metal plate 100 to pass between the roll mold 200 and the roll mold 200, thereby opening the central region of the metal plate 200. Both sides are processed to bend upward.
금속판(200)의 양측이 상측으로 굴곡지도록 가공하는 롤 금형(200)은 복수로 구비되되, 금속판(200)의 가공이 진행될수록 점진적으로 롤 금형(200)의 외면에 형성된 곡률이 커지는 순서로 배치되는 것이 바람직하다. A plurality of roll molds 200 for processing both sides of the metal plate 200 to be bent upwards are provided, and as the processing of the metal plate 200 proceeds, the roll molds 200 are gradually disposed so as to increase the curvature formed on the outer surface of the roll mold 200. It is desirable to be.
이러한 롤 금형(200)에 의하여 금속판(200)의 중앙 영역을 제외한 양측 단부가 상호 접촉될 때까지 가공이 이루어진 후에 금속판(200)의 양측 단부가 접촉되면 상호 접촉부위를 접합시키는 공정을 진행하게 된다. When both ends of the metal plate 200 are in contact with each other after the processing is performed until both ends of the metal plate 200 are contacted with each other by the roll die 200, the process of joining the mutual contact parts is performed. .
금속판(200)의 양측 단부를 접합시키는 방법은 여러 방법이 이용될 수 있으나, 본 실시예에서는 용접 방식에 의하여 금속판(200)의 양측 단부가 접합되도록 한다. As a method for joining both ends of the metal plate 200 may be used in various ways, in this embodiment, both ends of the metal plate 200 are joined by a welding method.
이러한 과정에 의하여 금속판(200)의 중앙 영역을 제외한 양측 단부가 상호 접촉되어 접합이 이루어지면 하면 양측이 굴곡지게 형성된 반원형 부재(300)가 형성된다. When both ends of the metal plate 200 except for the central region are contacted with each other by the above process, the semicircular member 300 is formed to be bent on both sides.
반원형 부재(300)는 중앙 영역에 요홈(311)이 형성된 평탄부(310)와, 상기 평탄부(310)의 양측 단부에서 상향 굴곡지게 형성되어 그 단부가 상호 접촉된 만곡부(320)와, 상호 접촉된 상기 만곡부(320)의 단부가 접합된 접합부(330)로 이루어질 수 있다. The semi-circular member 300 is a flat portion 310 having a groove 311 is formed in the center region, and the curved portion 320 is formed to be bent upward at both ends of the flat portion 310 and the ends thereof are in contact with each other, An end portion of the curved portion 320 in contact with each other may be formed as a bonded portion 330.
평탄부(310)는 상술한 스트레칭 단계에 의하여 중앙 영역에 요홈을 형성할 수 있도록 중앙 영역이 상측으로 절곡된 후에 롤 금형(200)의 가공에 의하여 펼쳐짐으로써 평탄하게 형성되는 부분이다. The flat part 310 is a part which is flattened by being unfolded by the processing of the roll mold 200 after the central area is bent upward so as to form the groove in the central area by the above-described stretching step.
이러한 평탄부(310)는 중앙 영역이 상기 스트레칭 단계에 의하여 상측으로 절곡된 후에 평탄하게 펼쳐진 상태이기 때문에 락볼트를 제고하는 후속 공정 중에서 양측 외면이 상호 점진적으로 근접하도록 가공시에 평탄부(310)의 중앙 영역에 요홈(311)이 용이하게 형성되도록 할 수 있는 효과가 있다. Since the flat portion 310 is flattened after the central region is bent upward by the stretching step, the flat portion 310 is gradually processed so that the outer surfaces of both sides gradually approach each other during the subsequent process of improving the lock bolt. In the center region of the groove 311 is an effect that can be easily formed.
만곡부(320)는 락볼트의 제조가 진행되면서 점진적으로 곡률이 커지는 복수의 롤 금형(200) 사이를 이송되면서 굴곡진 형태로 변형이 발생하는 부분이며, 가공이 완료된 후에 양측의 만곡부(320)는 각각 락볼트의 측면이 된다. The curved portion 320 is a portion in which deformation occurs in a curved form while being transferred between a plurality of roll molds 200 whose curvature gradually increases as the manufacture of the rock bolt progresses, and after the processing is completed, the curved portions 320 on both sides are Each is a side of the rock bolt.
접합부(330)는 절곡된 만곡부(320)의 단부가 접촉된 상태에서 용접 등의 방식에 의하여 이들 단부가 상호 접합된 부분이 되며, 접합부(330)와 대향되는 반원형 부재(300)의 외면에 요홈(311)이 형성된다. Joining portion 330 is a portion where these ends are joined to each other by welding or the like in the state that the ends of the bent curved portion 320 is in contact, grooves on the outer surface of the semi-circular member 300 opposite to the joining portion 330 311 is formed.
상술한 바와 같은 과정에 의하여 반원형 부재(300)가 가공되는 전반부 공정이 완료되면 요홈(311)을 형성함과 동시에 반원형 부재(300)의 직경보다 작은 직경을 가지며 요홈(311)이 형성되며 전체적으로 원형상의 단면을 갖는 후반부 공정이 진행된다. When the first half process in which the semi-circular member 300 is processed by the above-described process is completed, the groove 311 is formed and the groove 311 is formed with a diameter smaller than the diameter of the semi-circular member 300. The second half process with the cross section of the phase proceeds.
후반부 공정은 반원형 부재(300)가 투입되면 반원형 부재(300)의 만곡부(320)가 점진적으로 근접하는 방향으로 외력을 받음과 동시에 평탄부(310)의 중앙 영역에 요홈(311)이 형성되도록 하는 공정으로서 롤 금형(200)의 형상이 점진적으로 락볼트의 종단면과 동일한 형상에 가까워지도록 배치된다. In the second half process, when the semi-circular member 300 is input, the groove 311 is formed in the central region of the flat portion 310 while receiving an external force in a direction in which the curved portion 320 of the semi-circular member 300 gradually approaches. As a process, the shape of the roll metal mold | die 200 is arrange | positioned so that it may gradually approach the shape same as the longitudinal cross section of a rock bolt.
이러한 후반부 공정에 의하여 반원형 부재(300)는 락볼트의 종단면과 동일하게 요홈(311)이 형성되며 요홈(311)을 제외한 외면이 원형상에 가깝도록 굴곡지게 형성된다. By the latter half process, the semicircular member 300 is formed such that the groove 311 is formed in the same manner as the longitudinal section of the rock bolt, and the outer surface except the groove 311 is formed to be bent in a circular shape.
상술한 바와 같은 공정들의 진행에 의하여 평탄한 판상의 금속판(100)이 반원형 부재(300)를 거쳐서 락볼트로 가공되며, 이러한 가공에 사용되는 롤 금형(200)은 선형으로 배치되어 금속판(100)이 순차적으로 롤 금형(200) 사이를 이동하면서 가공이 이루어지도록 한다. The flat plate-like metal plate 100 is processed into a lock bolt through the semi-circular member 300 by the progress of the processes as described above, and the roll mold 200 used in such a process is arranged linearly so that the metal plate 100 is The process is made while moving between the roll mold 200 in sequence.
따라서, 락볼트를 제조하는 공정을 줄임으로써 락볼트를 신속하게 제조할 수 있도록 함과 동시에 락볼트를 제조하는데 소요되는 제조 시간을 절감하여 락볼트의 생산성을 향상시킬 수 있다. Therefore, by reducing the manufacturing process of the rock bolt, it is possible to manufacture the rock bolt quickly and at the same time reduce the manufacturing time required to manufacture the rock bolt can improve the productivity of the rock bolt.
이상은 본 발명에 의해 구현될 수 있는 바람직한 일 실시예의 일부에 관하여 설명한 것에 불과하므로, 주지된 바와 같이 본 발명의 범위는 위의 일 실시예에 한정되어 해석되어서는 안 될 것이며, 위에서 설명된 본 발명의 기술적 사상과 그 근본을 함께 하는 기술적 사상은 모두 본 발명의 범위에 포함된다고 할 것이다.Since the above has been described only with respect to some of the preferred embodiments that can be implemented by the present invention, as is well known the scope of the present invention should not be construed as limited to the above embodiment, the present invention described above It will be said that the technical idea of the invention and the technical idea together with the basics are all included in the scope of the present invention.

Claims (5)

  1. 평탄면이 형성된 판상의 금속판(100)을 굴곡진 외면이 형성된 롤 금형(200)에 안착시키는 제1단계와;A first step of mounting the plate-shaped metal plate 100 having the flat surface formed on the roll mold 200 having the curved outer surface;
    상기 롤 금형(200)을 구동시켜 상기 금속판(100)의 판면 양측이 굴곡지도록 가공하는 제2단계와;A second step of driving the roll die 200 to bend both sides of the plate surface of the metal plate 100;
    상기 금속판(100)의 양측이 점진적으로 곡률이 커지도록 굴곡지게 가공하여 상기 양측 단부가 상호 접촉되도록 가공하는 제3단계와;A third step of processing the both sides of the metal plate 100 to bend so that the curvature gradually increases, thereby processing the both ends to be in contact with each other;
    상기 금속판(100)의 접촉된 양측 단부를 상호 접합시켜 하면 양측이 굴곡지게 형성된 반원형상의 종단면을 갖는 반원형 부재(300)를 형성하는 제4단계와;A fourth step of forming a semi-circular member 300 having semi-circular longitudinal cross-sections formed when both sides of the metal plate 100 are joined to each other by bending;
    상기 반원형 부재(300)의 하면 중앙이 내측으로 요입되도록 하면서 양측 외면이 상호 점진적으로 근접하도록 가공하는 제5단계를;A fifth step of processing the outer surfaces of both sides to be gradually close to each other while the center of the lower surface of the semi-circular member 300 is recessed inwardly;
    포한한 것을 특징으로 하는 락볼트 제조방법.Rock bolt manufacturing method characterized in that.
  2. 제1항에 있어서,The method of claim 1,
    상기 제1단계 이전에 상기 금속판(100)의 중앙 영역과 양측 단부가 상측으로 굴곡지도록 가공함과 동시에 상기 중앙 영역과 상기 양측 단부 사이의 판면은 하측으로 굴곡지도록 가공하는 스트레칭 단계를 진행하는 것을 특징으로 하는 락볼트 제조방법.Before the first step, the central region and both ends of the metal plate 100 is processed to be bent upwards, and at the same time the plate surface between the central region and the both ends is processed to be stretched to be bent downwards. Rock bolt manufacturing method.
  3. 제1항에 있어서,The method of claim 1,
    상기 반원형 부재(300)는 중앙 영역에 요홈(311)이 형성된 평탄부(310)와, 상기 평탄부(310)의 양측 단부에서 상향 굴곡지게 형성되어 그 단부가 상호 접촉된 만곡부(320)와, 상호 접촉된 상기 만곡부(320)의 단부가 접합된 접합부(330)로 이루어진 것을 특징으로 하는 락볼트 제조방법.The semi-circular member 300 is a flat portion 310, the groove 311 is formed in the central region, the curved portion 320 is formed to be bent upward at both ends of the flat portion 310, the ends thereof contact each other, Rock bolt manufacturing method, characterized in that the end portion of the curved portion 320 is in contact with each other made of a bonding portion 330 bonded.
  4. 제3항에 있어서,The method of claim 3,
    상기 평탄부(310)에 형성된 상기 요홈(311)에 의하여 상기 만곡부(320) 양측이 점진적으로 근접하게 가공되면 상기 반원형 부재(300)의 하면 중앙이 내측으로 요입되는 것을 특징으로 하는 락볼트 제조방법.When both sides of the curved portion 320 are gradually processed by the grooves 311 formed in the flat portion 310, the center of the bottom surface of the semi-circular member 300 is recessed inwardly. .
  5. 제1항 내지 제4항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 4,
    굴곡진 외면이 형성된 복수의 상기 롤 금형(200)은 선형으로 배치되어 상기 금속판(100)이 순차적으로 이동되면서 가공되는 것을 특징으로 하는 락볼트 제조방법.The plurality of roll molds having a curved outer surface (200) is arranged in a linear manner manufacturing a rock bolt, characterized in that the metal plate 100 is processed while moving sequentially.
PCT/KR2014/011677 2013-12-31 2014-12-02 Method for manufacturing rock bolt WO2015102239A1 (en)

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Citations (5)

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JPH10156420A (en) * 1996-11-22 1998-06-16 Nippon Steel Corp Manufacture of lock bolt made of steel tube
JP2000102820A (en) * 1998-09-28 2000-04-11 Nishiyama Seisakusho:Kk Manufacture of specially shaped pipe having wall, cross section of which is incurvated in convexo-concave shape around central axis
JP2005052853A (en) * 2003-07-31 2005-03-03 Tokai Rubber Ind Ltd Method for manufacturing metallic rolled pipe product
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JP3868797B2 (en) * 2001-11-09 2007-01-17 日新製鋼株式会社 Method and apparatus for manufacturing deformed pipe for rock bolt
JP2005200893A (en) * 2004-01-14 2005-07-28 Nisshin Steel Co Ltd Steel pipe expansion type rock bolt with high bearing capacity and its manufacturing method
JP5082544B2 (en) * 2007-03-30 2012-11-28 Ｊｆｅスチール株式会社 Plate bending apparatus and bending method
JP2012255318A (en) * 2011-06-10 2012-12-27 Kajima Corp Expansion-type lock bolt having protrusion

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JPH10156420A (en) * 1996-11-22 1998-06-16 Nippon Steel Corp Manufacture of lock bolt made of steel tube
JP2000102820A (en) * 1998-09-28 2000-04-11 Nishiyama Seisakusho:Kk Manufacture of specially shaped pipe having wall, cross section of which is incurvated in convexo-concave shape around central axis
JP2005052853A (en) * 2003-07-31 2005-03-03 Tokai Rubber Ind Ltd Method for manufacturing metallic rolled pipe product
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JP2013237063A (en) * 2012-05-15 2013-11-28 Toyota Boshoku Corp Method and device for molding cylindrical body

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