KR20050028554A - Width control cutting apparatus of extruding material sheet for tire - Google Patents

Width control cutting apparatus of extruding material sheet for tire Download PDF

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Publication number
KR20050028554A
KR20050028554A KR1020030064883A KR20030064883A KR20050028554A KR 20050028554 A KR20050028554 A KR 20050028554A KR 1020030064883 A KR1020030064883 A KR 1020030064883A KR 20030064883 A KR20030064883 A KR 20030064883A KR 20050028554 A KR20050028554 A KR 20050028554A
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KR
South Korea
Prior art keywords
width
semi
extruded
finished sheet
cutting
Prior art date
Application number
KR1020030064883A
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Korean (ko)
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KR100532192B1 (en
Inventor
이현호
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한국타이어 주식회사
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Priority to KR10-2003-0064883A priority Critical patent/KR100532192B1/en
Publication of KR20050028554A publication Critical patent/KR20050028554A/en
Application granted granted Critical
Publication of KR100532192B1 publication Critical patent/KR100532192B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
    • 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
    • B26D1/141—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 for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D1/24—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 coacting with another disc cutter
    • B26D1/245—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 coacting with another disc cutter for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/007—Control means comprising cameras, vision or image processing systems
    • 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/0061—Accessories, details or auxiliary operations not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/0061—Accessories, details or auxiliary operations not otherwise provided for
    • B29D2030/0066—Tyre quality control during manufacturing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Tyre Moulding (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A cutting apparatus for controlling a width of extruded semi-finished material sheets for a tire is provided to automatically exchange semi-finished material sheets depending on width change thereof, to reduce operation time and to improve productivity. The cutting apparatus for controlling a width of extruded semi-finished material sheets for a tire cuts a width of semi-finished material sheets(3) extruded by a head(2) of an extruder(1) using a pair of circular cutters of a cutting portion(4) and delivers the cut semi-finished material sheets to next process. A distance between the circular cutters of the cutting portion is regulated according to instructions of a width measuring portion on a guide bar. The distance between the circular cutters is regulated by a servomotor. A support portion supporting the servomotor is connected with an ascending/descending cylinder about a hinge.

Description

타이어용 압출 반제품 시트의 폭 조절 컷팅장치{Width control cutting apparatus of extruding material sheet for tire}Width control cutting apparatus of extruding material sheet for tire

본 발명은 타이어 제조시 압출기를 통하여 압출되는 인너라이너와 같은 반제품 시트의 폭을 해당규격 만큼 커팅하여 다음 공정으로 보내는 타이어용 압출 반제품 시트의 폭 조절 커팅장치에 관한 것으로, 더욱 상세하게는 폭 측정부를 통하여 인가되는 정보에 맞추어 원형 롤 커터가 조절되어 자동으로 반제품 시트의 폭 변화를 해당규격에 맞도록 절단하는 타이어용 압출 반제품 시트의 폭 조절 커팅장치에 관한 것이다.The present invention relates to a width control cutting device of the extruded semi-finished sheet for tires for cutting the width of the semi-finished sheet, such as the inner liner that is extruded through the extruder during manufacture of the tire to the next process, more specifically, the width measuring unit The circular roll cutter is adjusted according to the information applied through the width adjustment cutting device of the extruded semi-finished sheet for tire for automatically cutting the width change of the semi-finished sheet to meet the corresponding standard.

주지된 바와 같이 타이어 제조시 압출기를 통하여 압출되는 인너라이너, 카카스와 같은 반제품시트는 도 5에 도시된 바와 같이 압출기의 헤드(102)에서 압출되는 고무가 싱글롤러(120) 사이를 통과하면서 인너라이너와 같은 반제품 시트(103)로 형성되는데, 이때 가이드 롤(113)을 따라 운반되는 이 반제품 시트(103)의 폭을 해당규격에 맞도록 1쌍의 이격된 원형롤 커터(105)로 절단하도록 되어 있었다.As is well known, the inner liner extruded through an extruder during manufacture of a tire, a semi-finished sheet such as carcass, has an inner liner as the rubber extruded from the head 102 of the extruder passes between the single rollers 120 as shown in FIG. 5. It is formed as a semi-finished sheet 103, such as to cut the width of the semi-finished sheet 103 carried along the guide roll 113 with a pair of spaced circular roll cutter 105 to meet the corresponding standard there was.

그러나 종래 상기와 같은 반제품 시트의 폭 커팅장치는 수동으로 커팅 바에 설치된 1쌍의 원형록 커터(105)의 폭을 조절할 때 작업자가 육안으로 측정수단을 이용하여 수동으로 실시함에 따라 해당규격의 작업 완료 후, 연속적으로 다른 규격의 반제품 시트를 생산할 때 이에 맞추어 작업자가 일일이 수동으로 측정하여 커팅장치를 새로 압출되는 반제품 시트에 맞추어 조절하여 세팅해야 하는 번거로움이 있었다.However, the conventional width cutting device of the semi-finished sheet as described above, when the operator manually performs the measurement by using the measuring means with the naked eye when adjusting the width of the pair of circular rock cutter 105 installed on the cutting bar, the work of the corresponding standard is completed. Afterwards, when producing semi-finished sheets of different specifications continuously, the operator had to measure manually and manually adjust the cutting device according to the newly extruded semi-finished sheets.

이에 본 발명은 상기와 같은 종래 문제점을 해결하기 위해 발명된 것으로, 압출기 헤드를 통하여 압출되는 반제품 시트의 폭 변화에 대하여 해당규격에 맞도록 자동으로 조절되어 반제품 시트의 폭을 커팅하는 타이어용 반제품 시트의 폭 조절 커팅장치를 제공함에 그 목적이 있다.Therefore, the present invention was invented to solve the conventional problems as described above, the semi-finished sheet for tires that are automatically adjusted to meet the corresponding standards for the width change of the semi-finished sheet is extruded through the extruder head to cut the width of the semi-finished sheet Its purpose is to provide a width control cutting device.

상기와 같은 목적을 달성하기 위한 본 발명은 압출기의 헤드를 통하여 압출되는 반제품 시트의 폭을 커터부의 1쌍의 원형커터로 절단하여 해당규격의 폭을 갖춘 반제품을 다음 공정으로 이송하는 장치에 있어서, 상기 커터부의 가이드 바를 따라 이격 설치된 원형커터는 서보모터에 의해 그 간격이 조절되고, 이 원형커터를 보유 지지하는 지지대는 힌지를 지점으로 승, 하강용 실린더와 연결되며, 이 커터부는 폭 측정부의 지령에 따라 작동하는 구조로 되어 있다.The present invention for achieving the above object is in the apparatus for transferring the semi-finished product having the width of the standard to the next process by cutting the width of the semi-finished sheet extruded through the head of the extruder with a pair of circular cutters of the cutter, The distance between the circular cutters provided along the guide bar of the cutter is adjusted by the servomotor, and the support holding the circular cutter is connected to the cylinder for lifting and lowering to the hinge point, and the cutter is instructed by the width measuring part. It is structured to work according to.

이하, 본 발명을 첨부된 예시 도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 전체 구성 개략도 이고, 도 2 내지 도 3은 본 발명의 요부 상세도들이다.1 is a schematic diagram of the overall structure of the present invention, and FIGS. 2 to 3 are detailed views of main parts of the present invention.

본 발명은 압출기(1)의 헤드(2)를 통하여 압출되는 반제품 시트(3)의 폭을 커팅부(4)의 1쌍의 원형커터(5)로 절단하여 해당규격의 폭을 갖춘 반제품 시트를 다음 공정으로 이송하는 장치에 있어서, 상기 커팅부(4)의 원형커터(5)는 폭 측정부(6)의 지령에 따라 가이드 바(7)에서 간격이 조절되되, 상기 원형커터(5)는 서보모터(8)에 의해 그 간격이 조절되고, 이를 보유 지지하는 지지대(9)는 힌지(10)를 지점으로 승, 하강용 실린더(11)와 연결되어 이루어진 구조로 되어 있다.The present invention cuts the width of the semi-finished sheet (3) extruded through the head (2) of the extruder (1) with a pair of circular cutters (5) of the cutting portion 4 to cut the semi-finished sheet having the width of the corresponding standard In the apparatus for transferring to the next process, the circular cutter 5 of the cutting unit 4 is adjusted in the guide bar 7 according to the command of the width measuring unit 6, the circular cutter 5 is The spacing is adjusted by the servomotor 8, and the support 9 for holding it has a structure in which the hinge 10 is connected to the lifting and lowering cylinder 11 at a point.

여기서 상기 가이드 바(7)는 리드 스크류 형태로 이루어지고 지지대(9)의 블록(12)이 이 가이드 바(7)를 따라 화살표 방향으로 서보모터(8)에 의해 자유롭게 이동되어 원형커터(5)의 간격을 조절한다.Here, the guide bar 7 is formed in the form of a lead screw and the block 12 of the support 9 is freely moved by the servomotor 8 in the direction of the arrow along the guide bar 7 so as to have a circular cutter 5. Adjust the interval between

그리고 상기 폭 측정부(6)는 도 4에 도시된 바와 같이 이송 콘베이어(13)로 이동된 반제품 시트(3)의 폭을 픽셀(Pixel) 단위로 스캔하는 형광램프를 갖춘 CCD 카메라(15)와 이 CCD 카메라(15)에서 들어온 픽셀(pixel)을 디지털화하는 제어부(16), 이 제어부(16)의 지령에 따라 커터부(4)의 서보모터(8) 등에 명령을 내리는 PLC(17)로 이루어져 있다.The width measuring unit 6 includes a CCD camera 15 having a fluorescent lamp for scanning the width of the semi-finished sheet 3 moved to the conveying conveyor 13 in units of pixels as shown in FIG. 4. The control unit 16 digitizes the pixel from the CCD camera 15, and the PLC 17 instructs the servo motor 8 of the cutter unit 4 or the like according to the command of the control unit 16. have.

이어 본 발명의 작동을 설명한다.Next, the operation of the present invention will be described.

도 1에 도시된 바와 같이 압출기(1)의 헤드(2)를 통하여 압출되는 인너라이너와 같은 반제품 시트(3)가 이송 콘베이어(13)를 매개로 이동되면, CCD 카메라(15)가 이 반제품 시트(3)의 폭을 스캔한 후, 그 폭을 CCD 카메라(15)의 픽셀 수를 계산하여 폭을 산출하게 되고, 그 값을 제어부(16)에서 D1300(18)과 WGC(19)로 이루어진 RS-232C 통신을 이용하여 PLC(17)로 전송 피드백 한다.When the semifinished sheet 3, such as the inner liner extruded through the head 2 of the extruder 1, is moved through the conveying conveyor 13 as shown in FIG. 1, the CCD camera 15 is moved to the semifinished sheet. After scanning the width of (3), the width is calculated by calculating the number of pixels of the CCD camera 15, and the value is calculated by the control unit 16 of the RS consisting of the D1300 (18) and the WGC (19). -Transmission feedback to PLC17 using -232C communication.

그리고 상기 반제품 시트(3)의 폭 변화량 감지는 규격별 세팅치와 상이할 경우 경고 또는 PLC(17)에 정지 요청 신호를 보내며, 반제품 시트(3)의 폭 변화 감지후 커터부(4)의 원형커터(5)를 이용하여 폭이 상이한 부분을 커팅하여 제거하도록 되어 있다.The width change detection of the semi-finished sheet 3 sends a warning or a stop request signal to the PLC 17 when the width change amount of the semi-finished sheet 3 is different from the standard setting value. The cutter 5 is used to cut and remove portions having different widths.

상기와 같이 본 발명에 따른 타이어용 압출 반제품 시트의 폭 조절 커팅장치는 인너라이너와 같은 반제품 시트의 규격 교체시 폭 변화에 따른 자동화를 구현할 수 있으며, 작업 규격 교체에 따른 작업시간의 단축이 이루어지고 다음 공정인 성형작업시 이 반제품 시트의 1:1 온라인 연결이 가능하여 생산성 향상을 도모할 수 있다.As described above, the width control cutting device of the extruded semi-finished sheet for tire according to the present invention can implement the automation according to the width change when the specification of the semi-finished sheet, such as the inner liner, the working time is reduced according to the work specification replacement In the next process, the molding process, the 1: 1 online connection of this semi-finished sheet is possible, which can improve productivity.

도 1은 본 발명이 적용된 압출장치의 전체 구성 개략도,1 is a schematic view of the overall configuration of an extrusion apparatus to which the present invention is applied;

도 2는 본 발명의 요부인 컷팅부의 상세 평면도,2 is a detailed plan view of a cutting portion that is a main part of the present invention;

도 3은 도 2의 상세 측면도,3 is a detailed side view of FIG. 2;

도 4는 본 발명에 따른 폭 측정부의 제어 구성도,4 is a control block diagram of a width measuring unit according to the present invention;

도 5는 종래 압출기를 통하여 압출 반제품의 폭 커팅을 설명하는 개요도 이다.Figure 5 is a schematic diagram illustrating the width cutting of the extruded semifinished product through a conventional extruder.

-도면의 주요 부분에 대한 부호의 설명-Explanation of symbols on main parts of drawing

1 : 압출기, 2 : 헤드,1: extruder, 2: head,

3 : 반제품 시트, 4 : 커팅부,3: semi-finished sheet, 4: cutting part,

5 : 원형커터, 6 : 폭 측정부,5: circular cutter, 6: width measuring unit,

7 : 가이드 바, 8 : 서보모터,7: guide bar, 8: servo motor,

9 : 지지대, 10 : 힌지,9: support, 10: hinge,

11 : 승, 하강용 실린더, 12 : 블록,11: cylinder for raising and lowering, 12: block,

13 : 이송 콘베이어, 13: conveying conveyor,

15 : CCD 카메라, 16 : 제어부,15: CCD camera, 16: control unit,

17 : PLC.17: PLC.

Claims (3)

압출기(1)의 헤드(2)를 통하여 압출되는 반제품 시트(3)의 폭을 커팅부(4)의 1쌍의 원형커터(5)로 절단하여 해당규격의 폭을 갖춘 반제품 시트를 다음 공정으로 이송하는 장치에 있어서, The width of the semi-finished sheet 3 extruded through the head 2 of the extruder 1 is cut by a pair of circular cutters 5 of the cutting section 4 to cut the semi-finished sheet having the width of the corresponding standard to the next step. In the conveying device, 상기 커팅부(4)의 원형커터(5)는 폭 측정부(6)의 지령에 따라 가이드 바(7)에서 간격이 조절되되, 상기 원형커터(5)는 서보모터(8)에 의해 그 간격이 조절되고, 이를 보유 지지하는 지지대(9)는 힌지(10)를 지점으로 승, 하강용 실린더(11)와 연결되어 이루어진 것을 특징으로 하는 타이어용 압출 반제품 시트의 폭 조절 커팅장치.The circular cutter 5 of the cutting part 4 is adjusted by the guide bar 7 according to the command of the width measuring part 6, the circular cutter 5 is the interval by the servo motor 8 The adjustable support, holding the support (9) is the width adjustment cutting device of the extruded semi-finished sheet for tires, characterized in that the hinge (10) is raised and lowered, connected to the lower cylinder (11). 제 1항에 있어서, 상기 리드 스크류 형태로 이루어지고 지지대(9)의 블록(12)이 이 가이드 바(7)를 따라 서보모터(8)에 의해 자유롭게 이동되어 원형커터(5)의 간격을 조절하도록 된 것을 특징으로 하는 타이어용 압출 반제품 시트의 폭 조절 커팅장치.The method according to claim 1, wherein the lead screw is formed and the block 12 of the support 9 is moved freely by the servomotor 8 along the guide bar 7 to adjust the spacing of the circular cutter 5. Width-controlled cutting device for extruded semi-finished sheets for tires, characterized in that. 제 1항에 있어서, 상기 폭 측정부(6)는 이송 콘베이어(13)로 이동된 반제품 시트(3)의 폭을 픽셀(Pixel) 단위로 스캔하는 형광램프를 갖춘 CCD 카메라(15)와 이 CCD 카메라(15)에서 들어온 픽셀(pixel)을 디지털화하는 제어부(16), 이 제어부(16)의 지령에 따라 커터부(4)의 서보모터(8) 등에 명령을 내리는 PLC(17)로 이루어진 것을 특징으로 하는 타이어용 압출 반제품 시트의 폭 조절 커팅장치.The CCD camera 15 according to claim 1, wherein the width measuring section 6 includes a CCD camera 15 having a fluorescent lamp for scanning the width of the semi-finished sheet 3 moved to the conveying conveyor 13 in units of pixels. And a controller 16 for digitizing a pixel from the camera 15 and a PLC 17 for giving a command to the servo motor 8 of the cutter unit 4 according to the command of the controller 16. Width-controlled cutting device for extruded semifinished sheets for tires.
KR10-2003-0064883A 2003-09-18 2003-09-18 Width control cutting apparatus of extruding material sheet for tire KR100532192B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
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KR100609761B1 (en) * 2004-12-14 2006-08-08 (주)글로벌링크 The system and method for reducing punching error by vatiating the length and width of material
KR100733616B1 (en) * 2007-04-16 2007-06-28 아이엠알앤디(주) Cutter device of a tire code
KR101037389B1 (en) * 2009-01-06 2011-05-30 금호타이어 주식회사 Device of recycling semifinished products
KR101961567B1 (en) 2017-11-14 2019-03-22 금호타이어 주식회사 Tire semi-finished cutting molding machine

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KR100766152B1 (en) 2006-09-27 2007-10-10 금호타이어 주식회사 Cutting apparatus of cutter for steel wire rolling half-finished goods
KR200449823Y1 (en) * 2008-06-23 2010-08-12 금호타이어 주식회사 Device for adjustment gage of semi-product of tire
KR200460643Y1 (en) * 2009-12-30 2012-06-04 금호타이어 주식회사 Device for trimming the edge of a semifinished product of cacas-ply with texile cord
KR101916767B1 (en) 2016-11-16 2018-11-09 금호타이어 주식회사 Tire semifinished product assembly disassembly device
KR102522719B1 (en) * 2021-10-19 2023-04-18 금호타이어 주식회사 Apparatus for cutting body ply cord of tire and method therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100609761B1 (en) * 2004-12-14 2006-08-08 (주)글로벌링크 The system and method for reducing punching error by vatiating the length and width of material
KR100733616B1 (en) * 2007-04-16 2007-06-28 아이엠알앤디(주) Cutter device of a tire code
KR101037389B1 (en) * 2009-01-06 2011-05-30 금호타이어 주식회사 Device of recycling semifinished products
KR101961567B1 (en) 2017-11-14 2019-03-22 금호타이어 주식회사 Tire semi-finished cutting molding machine

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