KR20090067592A - Side trimmer knofe - Google Patents

Side trimmer knofe Download PDF

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Publication number
KR20090067592A
KR20090067592A KR1020070135298A KR20070135298A KR20090067592A KR 20090067592 A KR20090067592 A KR 20090067592A KR 1020070135298 A KR1020070135298 A KR 1020070135298A KR 20070135298 A KR20070135298 A KR 20070135298A KR 20090067592 A KR20090067592 A KR 20090067592A
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KR
South Korea
Prior art keywords
knife
side trimmer
clearance
steel plate
curvature
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KR1020070135298A
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Korean (ko)
Inventor
송진화
박중철
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주식회사 포스코
재단법인 포항산업과학연구원
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Priority to KR1020070135298A priority Critical patent/KR20090067592A/en
Publication of KR20090067592A publication Critical patent/KR20090067592A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D19/00—Shearing machines or shearing devices cutting by rotary discs
    • B23D19/04—Shearing machines or shearing devices cutting by rotary discs having rotary shearing discs arranged in co-operating pairs
    • B23D19/06—Shearing machines or shearing devices cutting by rotary discs having rotary shearing discs arranged in co-operating pairs with several spaced pairs of shearing discs working simultaneously, e.g. for trimming or making strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/143—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis
    • B26D1/15—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with vertical cutting member
    • B26D1/151—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with vertical cutting member for thin material, e.g. for sheets, strips or the like

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Shearing Machines (AREA)

Abstract

A side trimmer knife is provided to have the optimum knife clearance and blade curvature, to improve the durability and trimming quality of a side trimmer knife, and to increase the service life by reducing the stress applied on upper and lower knife blades. A side trimmer knife for cutting a steel plate comprises an upper knife(10) located on the upper part of the steel plate and formed in the shape of a disk, and a lower knife(20) having an axis parallel to an axis of the upper knife, formed in the shape of a disk and located on the lower part of the steel plate, wherein the facing sides of the upper knife and the lower knife have a clearance(C) of 10~20% of the thickness(D) of the steel plate, and the edge curvature(R) of the circumferential surface of the upper knife and the lower knife is 0~0.07mm.

Description

사이드 트리머 나이프{Side Trimmer Knofe}Side Trimmer Knife

본 발명은 철판의 가장자리를 자르기 위한 사이드 트리머 나이프에 관한 것으로, 더욱 상세하게는 최적의 나이프 클리어런스와 날 곡률을 가진 사이드 트리머 나이프에 관한 것이다. FIELD OF THE INVENTION The present invention relates to side trimmer knives for cutting the edges of an iron plate, and more particularly to side trimmer knives with optimum knife clearance and blade curvature.

도 1은 사이드 트리머 나이프의 단면도이다.1 is a cross-sectional view of a side trimmer knife.

일반적으로, 사이드 트리머 나이프는 도 1에 도시한 바와 같이 2개로 이루어진 원판형의 상부 나이프(10)와 하부 나이프(20)가 각각 상하로 설치되고, 상부 나이프(10)와 하부 나이프(20)가 회전하면서 철판(2)을 연속적으로 절단하는 설비이다.In general, as shown in FIG. 1, the side trimmer knife has two disc-shaped upper knifes 10 and lower knifes 20 installed vertically, and the upper knife 10 and the lower knife 20 are respectively disposed. It is a facility for continuously cutting the iron plate (2) while rotating.

상/하부 나이프(10, 20)의 재질은 일반적으로 냉간 또는 열간 공구강을 사용하며, 절단하고자 하는 철판(2)의 두께(D), 강도 및 절단 속도에 따라 재질을 적절하게 선택하여 사용할 수 있다. 또한, 내마모성을 향상시키기 위해 상/하부 나이프(10, 20)의 표면에 초음파 나노 단조 처리, 질화처리 또는 PVD 코팅을 하기도 한다. The upper and lower knives 10 and 20 generally use cold or hot tool steel, and materials can be appropriately selected according to the thickness (D), strength, and cutting speed of the steel sheet 2 to be cut. . In addition, the surface of the upper and lower knives 10 and 20 may be subjected to ultrasonic nano forging treatment, nitriding treatment, or PVD coating to improve wear resistance.

이러한 재질 및 표면처리는 상/하부 나이프(10, 20)의 내구수명에 많은 영향 을 미치는 인자이다. 그러나 상/하부 나이프(10, 20)의 클리어런스(C)와 날 곡률(R)이 적절하게 설정되지 않으면, 상/하부 나이프(10, 20)의 날에 걸리는 응력이 증가하여 조기 마모를 초래하고, 트리밍 품질을 떨어뜨리게 된다.This material and surface treatment is a factor that greatly affects the endurance life of the upper and lower knives (10, 20). However, if the clearance C and the blade curvature R of the upper and lower knives 10 and 20 are not set appropriately, the stress applied to the blades of the upper and lower knives 10 and 20 increases, leading to premature wear. This will reduce the quality of trimming.

종래의 클리어런스(C)는 철판 두께(D)의 10분의 1로 설정하거나 작업자의 경험에 의해 품질 불량이 발생하지 않도록 임의로 조정하여 설정하여 왔다. 또한 상/하부 나이프(10, 20) 날은 곡률(R)이 없도록 날카롭게 가공하여 사용하고 있다. The conventional clearance (C) has been set to one tenth of the steel sheet thickness (D) or arbitrarily adjusted so as to prevent quality defects from being experienced by the operator. In addition, the upper and lower knives 10 and 20 are sharply processed so that there is no curvature R, and they are used.

특히, 품질 불량을 방지하기 위해 과도하게 클리어런스(C)를 작게 하여, 상/하부 나이프(10, 20) 날의 응력 증가로 인해 조기 마모나 깨짐 현상이 발생하여 내구 수명이 짧아지고 있다.Particularly, in order to prevent poor quality, the clearance C is excessively small, resulting in premature wear or cracking due to an increase in the stress of the upper / lower knives 10 and 20, resulting in shortened endurance life.

본 발명의 목적은, 최적의 클리어런스와 날 곡률을 가진 사이드 트리머 나이프를 제공하여, 사이드 트리머 나이프의 내구수명과 트리밍 품질을 향상시킬 수 있도록 하는 것이다.It is an object of the present invention to provide a side trimmer knife having an optimum clearance and blade curvature, so as to improve the durability life and trimming quality of the side trimmer knife.

본 발명에 따른 사이드 트리머 나이프는, 철판의 상부에 위치되는 원판형의 상부 나이프; 및 상기 상부 나이프의 축과 평행한 축을 가지며, 철판의 하부에 위치한 원판형의 하부 나이프를 포함하되, 상기 상부 나이프와 상기 하부 나이프의 마주보는 면들은 철판 두께의 10 내지 20%의 클리어런스를 가지며, 상기 상부 나이프와 상기 하부 나이프의 원주면의 곡률은 0 내지 0.07 mm인 것을 특징으로 한다.The side trimmer knife according to the present invention includes a disk-shaped upper knife located above the iron plate; And a disk-shaped lower knife having a shaft parallel to the axis of the upper knife, wherein the lower knife of the disc shape is disposed, wherein the opposite surfaces of the upper knife and the lower knife have a clearance of 10 to 20% of the thickness of the steel plate, The curvature of the circumferential surface of the upper knife and the lower knife is characterized in that 0 to 0.07 mm.

본 발명에 따른 사이드 트리머 나이프의 클리어런스와 날 곡률은 상/하부 나이프 날에 걸리는 응력을 감소시켜 내구 수명을 증가시킬 뿐 아니라 트리밍 품질도 향상시킬 수 있다.The clearance and blade curvature of the side trimmer knife according to the present invention can reduce the stress applied to the upper / lower knife blades, thereby increasing the endurance life as well as improving the trimming quality.

이하, 첨부된 도면을 참조하여 본 발명의 일 실시예에 따른 사이드 트리머 나이프를 더욱 상세하게 설명한다. 종래 기술과 동일한 기능을 수행하는 구성요소는 종래 기술을 위해 사용되었던 도 1을 참조하여 설명한다.Hereinafter, with reference to the accompanying drawings will be described in more detail a side trimmer knife according to an embodiment of the present invention. Components that perform the same functions as the prior art are described with reference to FIG. 1, which was used for the prior art.

본 발명의 일 실시예에 따른 사이드 트리머 나이프는 도 1에 도시된 바와 같 이, 상하 2개로 이루어진 원판형의 상부 나이프(10) 및 하부 나이프(20)가 설치되고, 상/하부 나이프(10, 20)가 회전하면서 철판(2)을 연속적으로 절단하는 장치이다.As shown in FIG. 1, the side trimmer knife according to the exemplary embodiment of the present invention has a disc-shaped upper knife 10 and a lower knife 20 having two upper and lower sides, and upper and lower knives 10, 20 is a device for continuously cutting the iron plate (2) while rotating.

본 발명의 일 실시예에 따른 사이드 트리머 나이프는 상부 나이프(10)와 하부 나이프(20)의 클리어런스(C)를 철판 두께(D)의 10 내지 20%로 설정하고, 상/하부 나이프(10, 20)의 엣지 곡률(R)을 0 내지 0.07 mm로 설정하는 구성이다.In the side trimmer knife according to an embodiment of the present invention, the clearance C of the upper knife 10 and the lower knife 20 is set to 10 to 20% of the sheet thickness D, and the upper / lower knife 10, The edge curvature R of 20) is set to 0 to 0.07 mm.

이러한 본 발명의 구성이 종래의 사이드 트리머 나이프에 비해 현저한 효과를 가지게 됨을 입증하기 위하여 다음과 같은 실험을 하였다.In order to prove that the configuration of the present invention has a remarkable effect compared to the conventional side trimmer knife, the following experiment was performed.

도 2는 펀치 시험기의 사시도이다.2 is a perspective view of a punch tester.

본 발명의 일 실시예에 따른 사이드 트리머 나이프의 실험을 위해 트리밍을 모사할 수 있는, 펀치(110)와 다이(120)으로 이루어진 펀치 시험기(100)를 제작하였고, 두께 1.2mm, 인장강도 60kg/mm2 급의 철판을 사용하여 클리어런스(C)를 철판 두께(D)의 10%, 20%, 30% 구간인 0.12mm, 0.24mm, 0.36mm로, 나이프의 날 곡률(R) 0.0mm, 0.07mm, 0.14mm로 하여 실험을 수행하였으며, 실험 결과는 표 1과 같다.For the experiment of the side trimmer knife according to an embodiment of the present invention was produced a punch tester 100 consisting of a punch 110 and a die 120, which can simulate the trimming, thickness 1.2mm, tensile strength 60kg / 10% of the clearance (C) by using a steel plate of 2 mm thick steel plate class (D), 20%, 30 % interval of 0.12mm, 0.24mm, a, the curvature of the knife edge (R) 0.0mm, 0.36mm 0.07 The experiment was carried out to mm, 0.14mm, the experimental results are shown in Table 1.

다이/펀치곡률 (R) [mm] Die / Punch Curvature (R) [mm] 다이/펀치 클리어런스 (C) [mm]  Die / Punch Clearance (C) [mm] 버어(Burr) 길이 [mm]  Burr length [mm] 샘플1Sample 1 샘플2Sample 2 샘플3Sample 3 샘플4Sample 4 샘플5Sample 5 평균Average 0.00 0.00 0.120.12 0.0130.013 0.0420.042 0.0130.013 0.0160.016 0.0200.020 0.0210.021 0.240.24 0.0130.013 0.0130.013 0.0130.013 0.0140.014 0.0040.004 0.0110.011 0.360.36 0.0050.005 0.0070.007 0.0120.012 0.0120.012 0.0090.009 0.0090.009 0.07 0.07 0.120.12 0.0060.006 0.0100.010 0.0000.000 0.0000.000 0.0060.006 0.0040.004 0.240.24 0.0120.012 0.0110.011 0.0110.011 0.0130.013 0.0100.010 0.0110.011 0.360.36 0.0300.030 0.0390.039 0.0310.031 0.0230.023 0.0230.023 0.0290.029 0.14 0.14 0.120.12 0.0710.071 0.0720.072 0.0680.068 0.0660.066 0.0770.077 0.0710.071 0.240.24 0.0690.069 0.0450.045 0.0560.056 0.060.06 0.0510.051 0.0560.056 0.360.36 0.0610.061 0.0610.061 0.0680.068 0.0660.066 0.0650.065 0.0640.064

도 3은 표 1의 각 실험 조건에 따른 버어 길이 결과를 도시한 그래프이다. 도 4는 표 1의 각 실험 조건에 따른 작용 하중 결과를 도시한 그래프이다.Figure 3 is a graph showing the burr length results according to each experimental condition of Table 1. 4 is a graph showing the resultant working load according to each experimental condition of Table 1.

버어(Burr) 길이는 [클리어런스 0.12mm, 날 곡률 0.07mm], [클리어런스 0.24mm, 날 곡률 0.0mm], [클리어런스 0.24mm, 0.07mm]인 경우 비교적 작게 나타났다. [클리어런스 0.36mm, 날 곡률 0.00mm]인 경우도 버어 길이가 작게 나타났으나 마모로 인해 날 곡률이 조금이라도 증가하면 급격하게 버어 길이가 증가하였다.Burr length was relatively small for [Clearance 0.12mm, blade curvature 0.07mm], [Clearance 0.24mm, blade curvature 0.0mm], [Clearance 0.24mm, 0.07mm]. In the case of [clearance 0.36mm, blade curvature 0.00mm], the burr length was small, but when the curvature increased slightly by abrasion, the burr length increased rapidly.

다이와 펀치에 걸리는 작용 하중(즉, 상/하부 나이프에 걸리는 작용 하중)은 클리어런스(C)가 감소함에 따라 증가하고, 날 곡률(R)이 증가함에 따라 증가하는 것으로 나타났다.The working load on the die and punch (ie the working load on the upper and lower knives) increased with decreasing clearance C and increased with increasing blade curvature R.

따라서, 본 발명의, 상부 나이프(10)와 하부 나이프(20)의 클리어런스(C)를 철판 두께(D)의 10 내지 20%로 설정하고, 상/하부 나이프(10, 20)의 엣지 곡률(R)을 0 내지 0.07 mm로 설정하는 구성에 의해, 마모로 인한 나이프의 내구수명이 증가되고, 트리밍 품질이 향상되는 현저하게 향상된 효과가 얻어진다는 것을 알 수 있다.Therefore, the clearance C of the upper knife 10 and the lower knife 20 of the present invention is set to 10 to 20% of the sheet thickness D, and the edge curvatures of the upper and lower knives 10 and 20 ( By the configuration in which R) is set to 0 to 0.07 mm, it can be seen that a remarkably improved effect of increasing the durability life of the knife due to wear and improving the trimming quality is obtained.

위에 설명된 예시적인 실시예는 제한적이기보다는 본 발명의 모든 관점들 내에서 설명적인 것이 되도록 의도되었다. 따라서 본 발명은 본 기술 분야의 숙련된 자들에 의하여 본 명세서 내에 포함된 설명으로부터 얻어질 수 있는 많은 변형과 상세한 실행이 가능하다. 다음의 청구범위에 의하여 한정된 바와 같이 이러한 모든 변형과 변경은 본 발명의 범위 및 사상 내에 있는 것으로 고려되어야 한다. The illustrative embodiments described above are intended to be illustrative within all aspects of the invention rather than limiting. Accordingly, the present invention is capable of many modifications and implementations that can be made by those skilled in the art from the description contained herein. All such modifications and variations are considered to be within the scope and spirit of the invention as defined by the following claims.

도 1은 사이드 트리머 나이프의 단면도이다.1 is a cross-sectional view of a side trimmer knife.

도 2는 펀치 시험기의 사시도이다.2 is a perspective view of a punch tester.

도 3은 표 1의 각 실험 조건에 따른 버어 길이 결과를 도시한 그래프이다. Figure 3 is a graph showing the burr length results according to each experimental condition of Table 1.

도 4는 표 1의 각 실험 조건에 따른 작용 하중 결과를 도시한 그래프이다.4 is a graph showing the resultant working load according to each experimental condition of Table 1.

Claims (1)

철판을 절단하기 위한 사이드 트리머 나이프에 있어서,In the side trimmer knife for cutting an iron plate, 철판의 상부에 위치되는 원판형의 상부 나이프; 및A disk-shaped upper knife positioned on the upper side of the iron plate; And 상기 상부 나이프의 축과 평행한 축을 가지며, 철판의 하부에 위치한 원판형의 하부 나이프를 포함하되,Including a disk-shaped lower knife having a shaft parallel to the axis of the upper knife, located below the iron plate, 상기 상부 나이프와 상기 하부 나이프의 마주보는 면들은 철판 두께(D)의 10 내지 20%의 클리어런스(C)를 가지며, Opposing surfaces of the upper knife and the lower knife have a clearance C of 10 to 20% of the sheet thickness D, 상기 상부 나이프와 상기 하부 나이프의 원주면의 엣지 곡률(R)이 0 내지 0.07 mm인 것을 특징으로 하는 사이드 트리머 나이프.Edge trimming (R) of the circumferential surface of the upper knife and the lower knife is 0 to 0.07 mm, characterized in that the side trimmer knife.
KR1020070135298A 2007-12-21 2007-12-21 Side trimmer knofe KR20090067592A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101439760B1 (en) * 2013-03-29 2014-09-11 주식회사 포스코 Slitting and coilng method for ultra-high strength coated steel sheet
CN112223374A (en) * 2020-09-23 2021-01-15 马鞍山市示范生产力促进中心有限公司 Extraction formula face tissue divides to fold packing plant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101439760B1 (en) * 2013-03-29 2014-09-11 주식회사 포스코 Slitting and coilng method for ultra-high strength coated steel sheet
CN112223374A (en) * 2020-09-23 2021-01-15 马鞍山市示范生产力促进中心有限公司 Extraction formula face tissue divides to fold packing plant

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