KR20050002551A - Cylinder ring coiled around steel plate - Google Patents

Cylinder ring coiled around steel plate Download PDF

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Publication number
KR20050002551A
KR20050002551A KR1020030043933A KR20030043933A KR20050002551A KR 20050002551 A KR20050002551 A KR 20050002551A KR 1020030043933 A KR1020030043933 A KR 1020030043933A KR 20030043933 A KR20030043933 A KR 20030043933A KR 20050002551 A KR20050002551 A KR 20050002551A
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KR
South Korea
Prior art keywords
cylinder ring
steel sheet
rolled steel
prominence
parts
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KR1020030043933A
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Korean (ko)
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KR100988502B1 (en
Inventor
이원호
Original Assignee
주식회사 포스코
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Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to KR1020030043933A priority Critical patent/KR100988502B1/en
Priority to AU2003289569A priority patent/AU2003289569A1/en
Priority to JP2005503240A priority patent/JP2007520351A/en
Priority to CNA2003801103611A priority patent/CN1819880A/en
Priority to PCT/KR2003/002884 priority patent/WO2005000494A1/en
Publication of KR20050002551A publication Critical patent/KR20050002551A/en
Priority to US11/321,750 priority patent/US20060169016A1/en
Application granted granted Critical
Publication of KR100988502B1 publication Critical patent/KR100988502B1/en

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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
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/28—Drums or other coil-holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

PURPOSE: To provide a cylinder ring along the outer circumferential surface of which prominence and depression parts are formed in such a shape that the prominence and depression parts are inclined to a certain angle from an axial central line to prevent end marks from forming on a rolled strip coiled around a mandrel although a top end of the rolled strip is positioned at an apex of any prominence part. CONSTITUTION: In a cylinder ring(200) into which a mandrel is inserted, on the outer circumferential surface of which a rolled strip is coiled around in a coil shape, and which is formed of an elastic body, the cylinder ring on which the rolled strip is coiled around comprises a plurality of prominence and depression parts which are consisted of depression parts(220) and prominence parts(210) and formed on the outer circumferential surface of the cylinder ring in such a shape that the depression parts and prominence parts are inclined to a certain angle from an axial central line of the cylinder ring, wherein the depression parts and prominence parts are inclined to an angle range of 20 to 70 degrees from the axial central line, and wherein one or more grooves are longitudinally formed in the prominence parts with the grooves being spaced apart from each other in a certain gap.

Description

압연강판이 감겨지는 실린더 링{Cylinder ring coiled around steel plate}Cylinder ring on which rolled steel sheet is wound {Cylinder ring coiled around steel plate}

본 발명은 압연강판이 감겨지는 맨드럴의 실린더 링에 관한 것이며, 특히, 맨드럴에 감겨지는 압연강판에 엔드마크가 발생되지 않도록 요철부가 축방향 중심선에서 일정 각도로 경사지게 외주면을 따라 형성된 실린더 링에 관한 것이다.The present invention relates to a cylinder ring of a mandrel in which a rolled steel sheet is wound, and particularly, to a cylinder ring formed along an outer circumferential surface of an uneven portion inclined at an angle from an axial center line so that an end mark is not generated in the rolled steel sheet wound in the mandrel. It is about.

일반적으로 열연강판 및 냉연강판은 폭에 비해 상대적으로 길이가 길기 때문에, 제철소에서 다음과 같이 코일의 형태로 감겨져 소비자에게 전달된다.In general, the hot rolled steel sheet and the cold rolled steel sheet is relatively long compared to the width, it is wound in the form of a coil in the steel mill as follows to be delivered to the consumer.

도 1은 종래기술에 따른 압연강판이 권취되는 상태를 나타낸 개략도이고, 도 2는 도 1에 도시된 압연강판이 감겨진 실린더 링의 일부를 나타낸 개략도이고, 도 3은 도 2에 도시된 실린더 링에 감겨진 후에 엔드마크가 형성된 압연강판의 평면도이다.1 is a schematic view showing a state in which a rolled steel sheet according to the prior art is wound, FIG. 2 is a schematic view showing a part of a cylinder ring in which the rolled steel sheet shown in FIG. 1 is wound, and FIG. 3 is a cylinder ring shown in FIG. 2. It is the top view of the rolled steel sheet in which the end mark was formed after being wound on.

도 1 내지 도 3에 도시된 바와 같이, 종래에는 압연기(10)에서 압연된 압연강판(50)을 권취기의 맨드럴(30) 쪽으로 이송하고, 압연강판(50)의 선단부(51)를 유도 가이드(20)로 통과시켜 맨드럴(30)의 외주에 감싼다. 이 때, 맨드럴(30)의 외주에는 맨드럴(30)에 감겨지는 압연강판(50)이 부딪쳐 변형되거나, 압연강판(50)과 맨드럴(30)이 접하는 면에서 슬립이 발생되는 것을 각각 방지하기 위해 탄성체의 실린더 링(40)이 끼워진다.1 to 3, conventionally, the rolled steel sheet 50 rolled by the rolling mill 10 is transferred to the mandrel 30 of the winder, and the leading end 51 of the rolled steel sheet 50 is guided. Passed through the guide 20 is wrapped around the outer circumference of the mandrel (30). At this time, the outer circumference of the mandrel 30 is the rolling steel sheet 50 wound on the mandrel 30 is deformed, or the slip is generated in the surface in contact with the rolled steel sheet 50 and the mandrel 30, respectively In order to prevent the cylinder ring 40 of the elastic body is fitted.

이렇게 실린더 링(40)에 감겨지는 압연강판(50)은 다시 풀어지지 않도록 긴장된 상태로 감겨지는데, 이런 긴장력으로 인해 감겨지는 압연강판(50)에는 그 중심부로는 압축력이 작용하게 된다. 그리고, 실린더 링(40)에 감겨진 압연강판(50)은 도 2에 도시된 바와 같이 선단부(51)가 위치하는 부위에 공간이 형성되면서, 선단부(51)가 위치하는 상부측에 집중압력이 작용하게 된다. 이로 인해, 실린더 링(40)에 감겨진 압연강판(50)에는 선단부(51)가 위치하는 상부측 부위에서 소성변형이 발생되고, 도 3에서와 같이 엔드마크(M)가 발생하게 된다.The rolled steel sheet 50 wound on the cylinder ring 40 is wound in a tensioned state so as not to be released again, and the compressive force acts as a center of the rolled steel sheet 50 wound due to the tension force. In addition, the rolling steel sheet 50 wound around the cylinder ring 40 has a space formed at a portion where the tip portion 51 is located, as shown in FIG. 2, while a concentrated pressure is applied to the upper side where the tip portion 51 is located. It will work. For this reason, plastic deformation occurs in the upper side portion where the tip portion 51 is located in the rolled steel sheet 50 wound around the cylinder ring 40, and the end mark M is generated as shown in FIG.

이런 엔드마크(M)가 형성된 압연강판(50)은 도금층 또는 도장층의 두께가 변화되거나 박리되는 문제점을 유발시켜, 제품의 품질을 저하시키는 요인으로 작용한다.The rolled steel sheet 50 having the end mark M formed therein causes a problem that the thickness of the plating layer or the coating layer is changed or peeled off, thereby acting as a factor that lowers the quality of the product.

그래서, 본 출원인은 상기와 같은 엔드마크(M)를 방지하기 위해 종래에 도 4에 도시된 바와 같이 요철부가 형성된 실린더 링을 개발하였고, 이런 실린더 링은 대한민국 공개특허공보 제 2003-0020468호에 기술되어 있다.Therefore, the present applicant has developed a cylinder ring in which a concave-convex portion is formed as shown in FIG. 4 in order to prevent the end mark M as described above, and the cylinder ring is described in Korean Patent Laid-Open Publication No. 2003-0020468. It is.

도 4는 종래기술에 따른 압연강판이 감겨지는 다른 형태의 실린더 링의 사시도이고, 도 5는 도 4에 도시된 실린더 링에 압연강판이 감겨지는 상태를 나타낸 평면도이고, 도 6은 도 5에 도시된 실린더 링에 감겨지는 압연강판의 여러 예들을 각각 나타낸 도면이다.Figure 4 is a perspective view of a cylinder ring of another form is wound the rolled steel sheet according to the prior art, Figure 5 is a plan view showing a state in which the rolled steel sheet is wound on the cylinder ring shown in Figure 4, Figure 6 is shown in Figure 5 Figures showing various examples of the rolled steel sheet is wound around the cylinder ring.

도 4 및 도 5에 도시된 바와 같이, 실린더 링(100)은 링 단면형상을 갖는 외주면에 길이방향으로 요부(120)와 철부(110)로 구성된 요철부 다수개가 원주를 따라 돌출 형성된다. 그러면, 상기와 같은 요철부를 구비한 실린더 링(100)에는 도 6에서의 (a), (b), (c)와 같이 압연강판(50)이 각각 감겨질 수 있다.As shown in Figure 4 and 5, the cylinder ring 100 has a plurality of concave-convex portion consisting of the concave portion 120 and the convex portion 110 in the longitudinal direction on the outer peripheral surface having a ring cross-sectional shape protrudes along the circumference. Then, the rolled steel sheet 50 as shown in (a), (b), (c) in Figure 6 may be wound on the cylinder ring 100 having the uneven portion as described above.

즉, 도 6의 (a)에서 압연강판(50)의 선단부(51)는 다수개의 요철부 중에서 임의의 하나인 제 2철부(110b)의 측부에 위치할 수 있다. 이런 상태의 압연강판(50)은 상기 제 2철부(110b)를 지지점으로 하여, 그 선단부(51)가 상부층으로부터 작용하는 가압력에 의해 굽힘 변형되고, 이런 가압력에 의해 제 2철부(110b)의 후방에 위치한 제 3철부(110c)는 제 2철부(110b)보다 실린더 링(100)의 중심부로 더 많이 압축된다. 그러면, 압연강판(50)의 선단부(51)에는 가해지는 가압력에 대한 반발력이 거의 형성되지 않기 때문에, 압연강판(50)에는 엔드마크(M)가 거의 형성되지 않는다.That is, the front end portion 51 of the rolled steel sheet 50 in Figure 6 (a) may be located on the side of the second convex portion (110b) which is any one of the plurality of irregularities. The rolled steel sheet 50 in this state has the second convex portion 110b as a supporting point, and the tip portion 51 is bent and deformed by the pressing force acting from the upper layer, and the rear convex portion of the second convex portion 110b is caused by this pressing force. The third convex portion 110c positioned at is compressed to the center of the cylinder ring 100 more than the second convex portion 110b. Then, since the repulsive force with respect to the pressing force applied to the front end part 51 of the rolled steel sheet 50 is hardly formed, the end mark M is hardly formed in the rolled steel sheet 50. FIG.

그리고, 도 6의 (b)에서 압연강판(50)의 선단부(51)는 제 2철부(110b)의 정점을 지나 요부(120)에 위치할 수 있다. 이런 상태의 압연강판(50)은 그 선단부(51)가 상부층으로부터 가압력을 받으면서, 굽힘 변형이 발생하게 된다. 그러면, 제 2철부(110b)는 실린더 링(100)의 중심부 방향으로 탄성변형하여 압축되고, 제 2철부(110b)의 전방에 위치한 제 1철부(110a)보다 압연강판(50)의 두께만큼 더 압축된다. 이로 인해, 압연강판(50)의 선단부(51)에는 반발력이 거의 형성되지 않기 때문에, 이런 경우에도 압연강판(50)에는 엔드마크(M)가 거의 형성되지 않는다.In addition, the front end portion 51 of the rolled steel sheet 50 in Figure 6 (b) may be located in the recess 120 past the vertex of the second convex portion (110b). The rolled steel sheet 50 in such a state causes bending deformation while the tip portion 51 receives the pressing force from the upper layer. Then, the second convex portion 110b is elastically deformed and compressed in the direction of the center of the cylinder ring 100, and is more than the first convex portion 110a positioned in front of the second convex portion 110b by the thickness of the rolled steel sheet 50. Is compressed. For this reason, since the repulsive force is hardly formed in the front-end | tip part 51 of the rolled steel sheet 50, even in this case, the end mark M is hardly formed in the rolled steel sheet 50. FIG.

그리고, 도 6의 (c)에서 압연강판(50)의 선단부(51)는 제 2철부(110b)의 정점에 위치할 수 있다. 이런 상태는 실린더 링(100)의 원주상에서 철부(110)의 정점이 차지하는 부위가 극히 적기 때문에, 도 6의 (a), (b)의 경우에 비해 그 확률이 극히 적게 나타난다. 하지만, 선단부(51)가 철부의 정점에 위치하는 경우에는 실린더 링(100)의 제 2철부(110b)가 어느 정도 탄성변형할지라도, 상기 링형상의 실린더 링(40)에서와 같이 반발력이 발생하여 압연강판(50)에 엔드마크(M)가 발생할 수 있는 문제점이 있다.In addition, the front end portion 51 of the rolled steel sheet 50 in Figure 6 (c) may be located at the apex of the second convex portion (110b). In this state, since the portion occupied by the vertex of the convex portion 110 on the circumference of the cylinder ring 100 is extremely small, the probability is extremely small as compared with the case of Figs. 6 (a) and 6 (b). However, when the tip portion 51 is located at the apex of the convex portion, even if the second convex portion 110b of the cylinder ring 100 is elastically deformed to some extent, a repulsive force is generated as in the ring-shaped cylinder ring 40. There is a problem that the end mark (M) may occur in the rolled steel sheet (50).

본 발명은 앞서 설명한 바와 같은 종래 기술의 문제점을 해결하기 위하여 제공된 것으로서, 감겨지는 압연강판의 선단부가 임의의 철부 정점에 위치하더라도 맨드럴에 감겨지는 압연강판에 엔드마크가 발생되지 않도록 요철부가 축방향 중심선에서 일정 각도로 경사지게 외주면을 따라 형성되는 실린더 링을 제공하는 데 그 목적이 있다.The present invention is provided to solve the problems of the prior art as described above, even if the tip portion of the rolled steel sheet to be wound at any iron peak, so that the uneven portion in the axial direction so that the end mark is not generated in the rolled steel sheet wound on the mandrel An object of the present invention is to provide a cylinder ring formed along an outer circumferential surface inclined at an angle from a center line.

도 1은 종래기술에 따른 압연강판이 권취되는 상태를 나타낸 개략도이고,1 is a schematic view showing a state in which a rolled steel sheet according to the prior art is wound;

도 2는 도 1에 도시된 압연강판이 감겨진 실린더 링의 일부를 나타낸 개략도이고,Figure 2 is a schematic diagram showing a part of the cylinder ring wound the rolled steel sheet shown in Figure 1,

도 3은 도 2에 도시된 실린더 링에 감겨진 후에 엔드마크가 형성된 압연강판의 평면도이고,3 is a plan view of a rolled steel sheet having an end mark after being wound around the cylinder ring shown in FIG.

도 4는 종래기술에 따른 압연강판이 감겨지는 다른 형태의 실린더 링의 사시도이고,4 is a perspective view of a cylinder ring of another form in which a rolled steel sheet according to the prior art is wound;

도 5는 도 4에 도시된 실린더 링에 압연강판이 감겨지는 상태를 나타낸 평면도이고,5 is a plan view showing a state in which a rolled steel sheet is wound around the cylinder ring shown in FIG. 4,

도 6은 도 5에 도시된 실린더 링에 감겨지는 압연강판의 여러 예들을 각각 나타낸 도면이고,FIG. 6 is a view illustrating various examples of the rolled steel sheet wound around the cylinder ring illustrated in FIG. 5, respectively.

도 7은 본 발명의 한 실시예에 따른 압연강판이 감겨지는 실린더 링의 사시도이고,7 is a perspective view of a cylinder ring wound around a rolled steel sheet according to an embodiment of the present invention,

도 8 및 도 9는 도 7에 도시된 실린더 링에 압연강판이 감겨지는 상태를 나타낸 정면도 및 평면도이고,8 and 9 are a front view and a plan view showing a state in which a rolled steel sheet is wound around the cylinder ring shown in FIG.

도 10은 본 발명의 다른 실시예에 따른 실린더 링의 사시도이다.10 is a perspective view of a cylinder ring according to another embodiment of the present invention.

♠ 도면의 주요부분에 대한 부호의 설명 ♠♠ Explanation of symbols on the main parts of the drawing ♠

10 : 압연기 30 : 맨드럴10: rolling mill 30: mandrel

40, 100, 200, 300 : 실린더 링40, 100, 200, 300: cylinder ring

50 : 압연강판50: rolled steel sheet

앞서 설명한 바와 같은 목적을 달성하기 위한 본 발명의 실린더 링은 내부에 맨드럴이 끼워지고, 그 외주면에 압연강판이 코일형태로 감겨진다. 그리고, 탄성체로 된 본 발명의 실린더 링은 상기 외주면에 그 축방향 중심선에서 일정 각도로 경사지게 원주둘레을 따라 요부와 철부로 구성되는 다수개의 요철부가 형성된다.In the cylinder ring of the present invention for achieving the object as described above, the mandrel is fitted therein, and the rolled steel sheet is wound in the form of a coil on its outer peripheral surface. And, the cylinder ring of the present invention made of an elastic body is formed on the outer circumferential surface is formed with a plurality of concave and convex portions formed along the circumference of the circumference so as to be inclined at an angle from the axial center line.

또한, 상기 축방향 중심선에 경사지는 요철부의 각도는 20°~ 70°의 범위로 형성되는 것이 바람직하다.In addition, the angle of the uneven portion inclined to the axial center line is preferably formed in the range of 20 ° ~ 70 °.

또한, 상기 철부에는 그 길이방향으로 하나 이상의 홈이 일정 간격으로 형성되는 것이 더 바람직하다.In addition, it is more preferable that one or more grooves are formed at regular intervals in the convex portion in the longitudinal direction thereof.

아래에서는 본 발명에 따른 압연강판이 감겨지는 실린더 링의 양호한 실시예를 첨부한 도면을 참조로 하여 상세히 설명하겠다.Hereinafter will be described in detail with reference to the accompanying drawings, preferred embodiments of the cylinder ring wound the rolled steel sheet according to the present invention.

도 7은 본 발명의 한 실시예에 따른 압연강판이 감겨지는 실린더 링의 사시도이고, 도 8 및 도 9는 도 7에 도시된 실린더 링에 압연강판이 감겨지는 상태를 나타낸 정면도 및 평면도이다.7 is a perspective view of a cylinder ring in which a rolled steel sheet is wound according to an embodiment of the present invention, and FIGS. 8 and 9 are front and plan views illustrating a state in which a rolled steel sheet is wound in a cylinder ring illustrated in FIG. 7.

도 7 내지 도 9에 도시된 바와 같이, 본 발명의 실린더 링(200)은 탄성체 재질로서 내부에 맨드럴이 삽입 끼워질 수 있는 공간이 형성되고, 그 외주에는 다수개의 철부(210)와 요부(220)로 구성되는 요철부가 외주면을 따라 형성된다. 특히, 본 발명의 실린더 링(200)은 종래와 달리 요철부가 축방향 중심선을 기준으로 일정 각도(θ)로 경사지게 형성된다.As shown in Figures 7 to 9, the cylinder ring 200 of the present invention is formed of a space in which the mandrel can be inserted therein as an elastic material, the outer circumference of the plurality of convex portion 210 and the recess ( Concave-convex portion consisting of 220 is formed along the outer circumferential surface. In particular, the cylinder ring 200 of the present invention is formed inclined at a predetermined angle (θ) relative to the axial center line unlike the conventional.

이와 같은 실린더 링(200)은 그 내부에 맨드럴이 끼워진 상태에서 압연기로부터 이송되는 압연강판(50)이 철부(210)의 상부측에 감겨지게 된다. 이 때, 압연강판(50)의 선단부(51)는 상기 종래기술로 기술된 실린더 링에서와 달리 철부와 평행하게 위치하지 아니하고, 임의의 철부들의 A, B와 같은 부위에 접촉하게 된다.Such a cylinder ring 200 is wound on the upper side of the convex portion 210, the rolled steel sheet 50 is transferred from the rolling mill in a mandrel fitted therein. At this time, the tip portion 51 of the rolled steel sheet 50 is not located in parallel with the convex portions, unlike in the cylinder ring described in the prior art, it is in contact with a portion such as A, B of any convex portions.

그러면, 본 발명의 실린더 링(200)에 감겨진 압연강판(50)에는 철부의 정점에 접하는 A, B 부위에서만 엔드마크가 생성될 수 있는 반발력이 작용한다. 하지만, 상기 A, B 부위는 압연강판(50)의 선단부(51) 길이에 비해 극히 일부이기 때문에, 실린더 링(200)에 감겨진 압연강판(50)에는 그 선단부(51)에서 응력집중에 의한 엔드마크가 생성되지 않는다.Then, the repulsive force acting on the rolled steel sheet 50 wound around the cylinder ring 200 of the present invention may generate an end mark only at the A and B portions in contact with the apex of the convex portion. However, since the A and B portions are only a fraction of the length of the tip portion 51 of the rolled steel sheet 50, the rolled steel sheet 50 wound around the cylinder ring 200 is caused by stress concentration at the tip portion 51 thereof. No end mark is created.

또한, 본 발명의 실린더 링(200)은 도 9에 도시된 바와 같이 요철부(210, 220)가 축방향 중심선을 기준으로 하여 일정 각도로 경사지는데, 그 경사각(θ)은 20°~ 70°로 형성된다. 이런 경사각(θ)의 범위는 본 출원인이 실린더 링(200)에 압연강판(50)을 감는 다수회의 실험을 통해 도출된 것이다.In addition, the cylinder ring 200 of the present invention, as shown in Figure 9, the uneven parts 210, 220 are inclined at a predetermined angle with respect to the axial center line, the inclination angle (θ) is 20 ° ~ 70 ° Is formed. This range of the inclination angle θ is derived through a number of experiments in which the applicant winds the rolled steel sheet 50 on the cylinder ring 200.

즉, 경사각(θ)이 20°미만인 경우에는 압연강판(50)의 선단부(51)가 접하는 철부의 정점에 접하는 부위가 넓어지기 때문에, 엔드마크가 생길 수 있는 문제점이 있다. 그리고, 경사각(θ)이 70°초과하여 90°에 가까워지는 경우에는 압연강판(50)에 접하는 철부가 실린더 링(50)의 축방향이 아닌 원주둘레로 형성되기 때문에, 실린더 링(200)은 압연강판(50)에 긴장력을 주면서 권취하는데 어려움이 있는 문제점이 있다.That is, when the inclination angle θ is less than 20 °, a portion of the inclined portion that contacts the apex of the convex portion of the rolled steel sheet 50 that is in contact with the widened portion becomes wider, and thus an end mark may occur. When the inclination angle θ exceeds 70 ° and approaches 90 °, the cylinder ring 200 is formed in the circumferential circumference of the cylinder ring 50 rather than in the axial direction of the cylinder ring 50. There is a problem in that it is difficult to wind while giving tension to the rolled steel sheet (50).

도 10은 본 발명의 다른 실시예에 따른 실린더 링의 사시도이다.10 is a perspective view of a cylinder ring according to another embodiment of the present invention.

도 10에 도시된 바와 같이, 본 발명의 실린더 링(300)은 상기 도 7에 도시된 실린더 링(200)과 같이 요부와 철부(310)로 구성되는 요철부가 축방향 중심선에서 일정 각도로 경사지게 형성되지만, 상기 요철부의 철부(310)에는 그 길이방향을 따라 일정 간격으로 홈이 절취 형성된다.As shown in FIG. 10, the cylinder ring 300 of the present invention is formed to be inclined at a predetermined angle from an axial center line such as the recessed portion and the recessed portion 310, such as the cylinder ring 200 shown in FIG. 7. However, grooves are formed in the convex portion 310 of the uneven portion at regular intervals along the longitudinal direction thereof.

본 발명의 실린더 링(300)은 철부(310)에 홈이 형성될지라도, 상기 도 7에 도시된 실린더 링(200)에서와 같이 압연강판에 접하는 철부(310)의 부위가 감소된다. 이로 인해, 본 발명의 실린더 링(300)은 도 7의 실린더 링(200)과 동일하게 압연강판에 엔드마크가 용이하게 형성되지 않는다.In the cylinder ring 300 of the present invention, even if a groove is formed in the convex portion 310, the portion of the convex portion 310 in contact with the rolled steel sheet is reduced as in the cylinder ring 200 shown in FIG. For this reason, the end ring is not easily formed on the rolled steel sheet in the same manner as the cylinder ring 300 of FIG. 7.

앞서 상세히 설명한 바와 같이, 본 발명의 실린더 링은 종래의 요철부가 형성된 실린더 링에서와 같이 압연강판의 선단부가 철부의 정점에 위치하더라도, 요철부가 축방향 중심선에서 경사지게 외주면을 따라 형성되기 때문에, 철부의 정점에 접하는 압연강판의 선단부 부위가 좁아서, 압연강판에 엔드마크가 생성되는 것을 방지할 수 있는 장점이 있다.As described in detail above, in the cylinder ring of the present invention, even if the tip portion of the rolled steel sheet is located at the apex of the convex portion, as in the cylinder ring in which the concave-convex portion is formed, since the concave-convex portion is formed along the outer circumferential surface inclined at the axial center line, The tip portion of the rolled steel sheet in contact with the vertex is narrow, there is an advantage that can prevent the end mark is generated in the rolled steel sheet.

이상에서 본 발명의 압연강판이 감겨지는 실린더 링에 대한 기술사상을 첨부도면과 함께 서술하였지만, 이는 본 발명의 가장 양호한 실시예를 예시적으로 설명한 것이지 본 발명을 한정하는 것은 아니다. 또한, 이 기술분야의 통상의 지식을 가진 자이면 누구나 본 발명의 기술사상의 범주를 이탈하지 않는 범위 내에서 다양한 변형 및 모방이 가능함은 명백한 사실이다.In the above description, the technical idea of the cylinder ring on which the rolled steel sheet of the present invention is wound has been described together with the accompanying drawings, but this is by way of example only and not intended to limit the present invention. In addition, it is obvious that any person skilled in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

Claims (3)

내부에 맨드럴이 끼워지고, 그 외주면에 압연강판이 코일형태로 감겨지는 탄성체로 된 실린더 링에 있어서,In the cylinder ring made of an elastic body in which a mandrel is inserted inside and a rolled steel sheet is wound in a coil form on its outer peripheral surface, 상기 외주면에 그 축방향 중심선에서 일정 각도로 경사지게 원주둘레를 따라 요부와 철부로 구성되는 다수개의 요철부가 형성되는 것을 특징으로 하는 압연강판이 감겨지는 실린더 링.Rolled steel sheet is wound around the outer circumferential surface is formed with a plurality of concave-convex portion consisting of concave portion and convex portion along the circumference inclined at a predetermined angle from the axial center line. 제 1항에 있어서, 상기 축방향 중심선에 경사지는 요철부의 각도는 20°~ 70°의 범위로 형성되는 것을 특징으로 하는 압연강판이 감겨지는 실린더 링.2. The cylinder ring of claim 1, wherein an angle of the uneven portion inclined to the axial center line is formed in a range of 20 ° to 70 °. 제 1항 또는 제 2항에 있어서, 상기 철부에는 그 길이방향으로 하나 이상의 홈이 일정 간격으로 형성되는 것을 특징으로 하는 압연강판이 감겨지는 실린더 링.3. The cylinder ring of claim 1 or 2, wherein the convex portion is formed with one or more grooves formed at regular intervals in the longitudinal direction thereof.
KR1020030043933A 2003-06-30 2003-06-30 Cylinder ring coiled around steel plate KR100988502B1 (en)

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KR1020030043933A KR100988502B1 (en) 2003-06-30 2003-06-30 Cylinder ring coiled around steel plate
AU2003289569A AU2003289569A1 (en) 2003-06-30 2003-12-30 Cylinder ring for preventing end mark or rolled sheet
JP2005503240A JP2007520351A (en) 2003-06-30 2003-12-30 Cylinder ring that prevents end marks on rolled plates
CNA2003801103611A CN1819880A (en) 2003-06-30 2003-12-30 Cylinder ring for preventing end mark or rolled sheet
PCT/KR2003/002884 WO2005000494A1 (en) 2003-06-30 2003-12-30 Cylinder ring for preventing end mark or rolled sheet
US11/321,750 US20060169016A1 (en) 2003-06-30 2005-12-29 Cylinder ring for preventing end mark of rolled sheet

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JP2012188252A (en) * 2011-03-11 2012-10-04 Nitto Denko Corp Winding core for winding film and wound film body using the same
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