KR102278886B1 - Extrudate member for manufacturing tire - Google Patents

Extrudate member for manufacturing tire Download PDF

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Publication number
KR102278886B1
KR102278886B1 KR1020200041374A KR20200041374A KR102278886B1 KR 102278886 B1 KR102278886 B1 KR 102278886B1 KR 1020200041374 A KR1020200041374 A KR 1020200041374A KR 20200041374 A KR20200041374 A KR 20200041374A KR 102278886 B1 KR102278886 B1 KR 102278886B1
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South Korea
Prior art keywords
semi
tread
extrudate
tire
finished
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KR1020200041374A
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Korean (ko)
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김학민
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넥센타이어 주식회사
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    • 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)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/023—Half-products, e.g. films, plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0053—Moulding articles characterised by the shape of the surface, e.g. ribs, high polish
    • B29C37/0057—Moulding single grooves or ribs, e.g. tear lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • B29C53/04—Bending or folding of plates or sheets
    • B29C53/06—Forming folding lines by pressing or scoring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/005—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore cutting-off or cutting-out a part of a strip-like or sheet-like material, transferring that part and fixing it to an article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0008—Tyre tread bands; Tread patterns; Anti-skid inserts characterised by the tread rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0008—Tyre tread bands; Tread patterns; Anti-skid inserts characterised by the tread rubber
    • B60C2011/0016—Physical properties or dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
    • B60C2013/005—Physical properties of the sidewall rubber

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Tyre Moulding (AREA)
  • Tires In General (AREA)

Abstract

The present invention relates to a tread extrudate member for manufacturing a tire. In the tire manufacturing method in which manufacturing is performed through each process in the order of a refining process, a semi-finished product process, a forming process, and a vulcanization process, the tread extrudate member in a semi-finished state manufactured through an extrusion process of extruding tire rubber in the semi-finished process includes an extrudate body formed of a certain length and width, and a folded portion partitioned by repeatedly making partial cuts at intervals along both sides of the extrudate body in the width direction, wherein a folded portion is formed by forming an isosceles trapezoidal body and a V-shaped groove therebetween at intervals on both sides of the semi-finished tread extrudate member, so that the surface finish of both edges is uniformly formed by the folds when attaching the tread extrudate member using a forming drum in the forming process.

Description

타이어 제조용 트레드 압출물부재{EXTRUDATE MEMBER FOR MANUFACTURING TIRE}Tread extruded member for tire manufacturing {EXTRUDATE MEMBER FOR MANUFACTURING TIRE}

본 발명은 타이어 제조용 트레드 압출물부재에 관한 것으로, 구체적으로는, 반제품 상태인 트레드 압출물부재의 양변에 간격을 두고 등변사다리꼴 체와 그 사이에 V형 사이홈 같은 틈새 공간을 접힘부에 형성함으로써, 성형공정에서 성형 드럼을 이용하여 트레드 압출물부재를 부착할 때 접힘부에 의하여 양측 가장자리의 표면 마감이 균일하게 형성되도록 하는 타이어 제조용 트레드 압출물부재에 관한 것이다.The present invention relates to a tread extrudate member for tire manufacturing, and more specifically, by forming an isosceles trapezoidal sieve at intervals on both sides of a semi-finished tread extrudate member, and a gap space such as a V-shaped interstitial groove between them, in the folded portion. , relates to a tread extrudate member for tire manufacturing that allows the surface finish of both edges to be uniformly formed by the folds when the tread extrudate member is attached using a forming drum in the forming process.

일반적으로, 타이어 제조용 트레드 압출물부재는, 이미 널리 개시된 사항으로 자세한 설명은 생략하며, 공개특허 제10-2012-0051221호 “절삭을 이용한 타이어용 트레드 압출물의 제조방법”과 공개특허 제10-2010-0000745호“타이어용 트레드 반제품” 등을 참고할 수 있다.In general, the tread extrudate member for tire manufacturing has already been widely disclosed, and detailed descriptions thereof are omitted, and Korean Patent Publication No. 10-2012-0051221 “Method for Manufacturing Tread Extrudate Using Cutting” and Patent Publication No. 10-2010 -0000745 “Semi-finished products for treads for tires” can be referred to.

상기한 “절삭을 이용한 타이어용 트레드 압출물의 제조방법”은 균일한 트레드 압출물을 얻을 수 있도록 압출다이에서 압출된 트레드 압출물이 이송장치로 이송되면 절삭기가 압출물을 형상에 맞추어 절삭가공 한다고 하지만 트레드 압출물을 어떻게 절삭하고 어떤 형태로 절삭하는지 알 수 없는 문제점이 있다.The above-mentioned “method for manufacturing tread extrudate for tire using cutting” means that when the extruded tread extruded from the extrusion die is transferred to the conveying device to obtain a uniform tread extrudate, the cutting machine cuts the extrudate according to the shape. There is a problem in that it is not known how to cut the tread extrudate and in what shape.

또한, 상기 “타이어용 트레드 반제품”은, 트레드 반제품 내부에 중공관을 배치하여 트레드 표면에 그루브를 가압 성형할 때 고무의 밀림을 완화시켜 공기입 타이어의 내구성 및 균일성을 향상되도록 한 것이지만 반제품 내부에 벨트의 변형을 방지하기 위한 중공관을 미리 배치시켜 하는 문제가 있고, 중공관이 눌림에 따라 벨트층의 변형이 우려되는 문제점이 있다.In addition, the above “semi-finished tread for tires” is designed to improve the durability and uniformity of the pneumatic tire by arranging a hollow tube inside the semi-finished tread to relieve rubber slip when press-molding a groove on the tread surface, but the inside of the semi-finished product There is a problem of pre-arranging a hollow tube for preventing deformation of the belt, and there is a problem that the deformation of the belt layer is concerned as the hollow tube is pressed.

[특허문헌 0001] 등록특허 제10-2040039호 "타이어 가류기 몰드 온도 제어장치" (공고 2019.11.04.)[Patent Document 0001] Registered Patent No. 10-2040039 "Tire vulcanizer mold temperature control device" (Announcement 2019.11.04.) [특허문헌 0002] 공개특허 제10-2017-0134870호 "타이어 가류몰드의 온도제어장치" (공고 2017.12.07.)[Patent Document 0002] Unexamined Patent Publication No. 10-2017-0134870 "Temperature control device of tire vulcanization mold" (Announcement 2017.12.07.)

본 발명은 상기한 문제점을 해결하기 위해 발명된 것으로, 그 목적은, 반제품 상태인 트레드 압출물부재의 양변에 간격을 두고 등변사다리꼴 체와 그 사이에 V형 사이홈을 형성하여 접힘부를 형성함으로써, 성형공정에서 성형 드럼을 이용하여 트레드 압출물부재를 부착할 때 양측 가장자리의 표면 마감이 접힘부에 의하여 균일하게 형성되도록 하는데 있다.The present invention was invented to solve the above problems, and its object is to form a fold by forming a V-shaped groove between an isosceles trapezoidal sieve and an isosceles trapezoidal body at intervals on both sides of the semi-finished tread extrudate member, When attaching the extruded tread member using the forming drum in the forming process, the surface finish of both edges is uniformly formed by the folded portion.

본 발명의 다른 목적은, 성형공정에서 트레드 압출물부재를 부착할 때 양측의 접힘부에 의하여 고무의 주름과 겹침 및 뭉침이 발생되지 않도록 하는데 있다. Another object of the present invention is to prevent wrinkles, overlapping, and agglomeration of rubber due to the folds on both sides when attaching the extruded tread member in the molding process.

상기한 기술적 과제를 달성하기 위한 본 발명은, 정련공정과, 반제품공정과, 성형공정과, 가류공정 순으로 각 공정을 거쳐 제조가 이루어지는 타이어 제조 방법에 있어서,The present invention for achieving the above technical problem is a tire manufacturing method in which manufacturing is performed through each process in the order of a refining process, a semi-finished product process, a molding process, and a vulcanization process,

상기 반제품공정내의 타이어 고무를 압출하는 압출공정을 통해 제조된 반제품 상태의 트레드 압출물부재는, 일정 길이와 폭으로 형성되는 압출물 몸체와, 상기 압출물 몸체의 폭 방향 측의 양변을 따라 간격을 두고 부분 절개하여 형성되는 접힘부를 포함하여 이루어지는 것을 특징으로 한다.The tread extrudate member in a semi-finished state manufactured through an extrusion process of extruding tire rubber in the semi-finished process includes an extrudate body formed with a predetermined length and width, and a gap along both sides of the extrudate body in the width direction. It is characterized in that it includes a folded portion formed by partially incising.

또한, 상기 접힘부에는, 그린 타이어에서 숄더부측으로 접힐 때 트레드 압출물부재의 가장자리 부분에서 오버랩이나 고무가 뭉치게 되는 것을 방지할 수 있도록 다수 형성되는 제1 등변사다리꼴 체와, 상기 제1 등변사다리꼴 체의 경사부 사이에 형성되되, 일정 간격으로 벌어져서 고무의 오버랩이나 뭉치게 되는 것을 방지할 수 있도록 형성되는 V형 사이홈들을 포함하여 이루어지는 것을 특징으로 한다.In addition, in the folded portion, a plurality of first isosceles trapezoidal sieves are formed to prevent overlap or rubber from aggregating at the edge of the tread extrudate member when folded toward the shoulder in the green tire, and the first isosceles trapezoid It is formed between the inclined portions of the sieve, and it is characterized in that it comprises V-shaped grooves formed to prevent overlapping or aggregation of rubber by being spaced apart at regular intervals.

또한, 상기 접힘부는, 성형공정 및 가류공정에서 가압되어 숄더부측으로 접힐 때 트레드 압출물부재의 길이 방향으로 형성되는 양 측 가장자리 부분이 오버랩되거나 뭉치게 되는 것을 방지할 수 있도록 형성되는 반원체와, 상기 반원체 사이에 반호형 사이홈을 두고 일정 간격으로 벌어져서 오버랩되거나 뭉치게 되는 것을 방지할 수 있도록 일정 간격을 두고 반복적으로 형성되는 등변곡선꼴 체들을 포함하여 이루어지는 것을 특징으로 한다.In addition, the folded part is pressed in the molding process and vulcanizing process and is formed to prevent overlapping or aggregation of both edge portions formed in the longitudinal direction of the tread extrudate member when folded toward the shoulder part; It is characterized in that it comprises isosceles curvilinear sieves that are repeatedly formed at regular intervals to prevent overlapping or agglomeration by having a semi-arc-shaped groove between the semicircular bodies.

또한, 상기 접힘부는, 성형공정 및 가류공정에서 가압되어 접힐 때 타이어의 숄더부 면이 균일하게 형성되도록 그린 타이어에서 숄더부에 접힐 때 트레드 압출물부재의 가장자리 부분에서 오버랩이나 고무가 뭉치게 되는 것을 방지하기 위하여 일정 간격을 두고 반복적으로 형성되는 제2 등변사다리꼴 체와, 상기 제2 등변사다리꼴 체 사이에 경사형 사이홈을 두고 일정 간격으로 벌어져서 고무의 오버랩이나 뭉치게 되는 것을 방지할 수 있도록 일정 간격을 반복 형성되는 등변삼각꼴 체들을 포함하여 이루어지는 것을 특징으로 한다.In addition, the fold portion is pressed in the molding process and vulcanization process so that when folded, the shoulder surface of the tire is uniformly formed so that the overlap or rubber is agglomerated at the edge of the tread extrudate member when folded in the shoulder portion in the green tire. A second isosceles trapezoidal sieve, which is repeatedly formed at regular intervals in order to prevent it, and an inclined groove between the second isosceles trapezoidal sieve, which are opened at regular intervals to prevent overlapping or aggregation of rubber. It is characterized in that it comprises isosceles triangular bodies that are repeatedly formed.

또한, 상기 V형 사이홈, 반호형 사이홈, 경사형 사이홈들은, 성형공정 및 가류공정에서 압축될 때 간격이 좁아지면서 트레드 압출물부재의 폭 방향 양측 가장자리 부분이 주름지거나 겹치거나 뭉치지 않도록 함으로써, 숄더부 측의 표면이 균일하게 형성되도록 하는 것을 특징으로 한다.In addition, the V-shaped inter-groove, semi-arc inter-groove, and slanted inter-groove, when compressed in the molding process and vulcanization process, the gap is narrowed and the width direction both edges of the tread extrudate member are not wrinkled, overlapped, or bundled. , characterized in that the surface of the shoulder portion is formed uniformly.

또한, 상기 접힘부에서 제1 등변사다리꼴 체 또는 반원체와 등변곡선꼴 체 또는 제2 등변사다리꼴 체와 등변삼각꼴 체들은, 성형공정 및 가류공정에서 압축되어 간격이 좁아질 때 주름지거나 겹치거나 뭉치지 않도록 함으로써, 숄더부의 표면이 균일하게 형성되도록 하는 것을 특징으로 한다.In addition, in the folded portion, the first isosceles trapezoidal sieve or semicircle and isosceles curvilinear sieve or the second isosceles trapezoidal sieve and isosceles triangular sieves are compressed in the forming process and vulcanization process and are not wrinkled, overlapped or agglomerated when the gap is narrowed By not doing so, it is characterized in that the surface of the shoulder portion is formed uniformly.

본 발명의 타이어 제조용 트레드 압출물부재에 의하면, 반제품 상태인 트레드 압출물부재의 양변에 간격을 두고 등변사다리꼴 체와 그 사이에 V형 사이홈을 형성하여 접힘부를 형성함으로써, 성형공정에서 트레드 압출물부재를 성형 드럼을 이용하여 부착할 때 양측 가장자리의 표면 마감이 접힘부에 의하여 균일하게 형성되도록 하는 효과가 있다.According to the tread extrudate member for tire manufacturing of the present invention, by forming a folded portion by forming an isosceles trapezoidal sieve and a V-shaped groove therebetween at intervals on both sides of the semi-finished tread extrudate member, the tread extrudate in the molding process When the member is attached using the forming drum, there is an effect of uniformly forming the surface finish of both edges by the folded portion.

또한, 성형공정에서 트레드 압출물부재를 부착할 때 양측에 형성된 접힘부에 의하여 숄더부 접합부분에서의 고무 주름과 고무 겹침 및 고무 뭉침이 발생되지 않도록 하는 효과가 있다. In addition, when attaching the extruded tread member in the molding process, there is an effect of preventing rubber wrinkles, rubber overlapping, and rubber agglomeration at the shoulder joint portion by the folded portions formed on both sides.

또한, 성형공정에서 트레드 압출물부재에 형성된 접힘부에 의하여 표면 마감의 균일성이 향상됨에 따라 가류 공정에서의 그린타이어도 균일성이 향상되어 타이어의 품질을 향상시키는 효과가 있다.In addition, as the uniformity of the surface finish is improved by the folds formed on the tread extrudate member in the molding process, the uniformity of the green tire in the vulcanization process is also improved, thereby improving the quality of the tire.

또한, 트레드 압출물부재들의 부착성이 향상되고 숄더부측에서의 마감 표면에 발생하는 공기 잔류, 고무 주름, 고무 겹침, 고무 뭉침을 방지하여 성형 공정시 타이어 변형을 최소화하여 유니포머티(uniformity)를 크게 향상시키는 효과가 있다. In addition, the adhesion of the extruded tread members is improved, and it minimizes tire deformation during the molding process by preventing air residue, rubber wrinkles, rubber overlap, and rubber agglomeration occurring on the finished surface on the shoulder side, thereby greatly increasing uniformity. has an improving effect.

또한, 상기 성형공정에서 트레드 압출물부재의 접힘부에 의하여 그린 타이어 형상이 라운드(round)지게 제조하게 됨으로써 가류 공정 시 그린 타이어의 내측면부에서 브래더(Bladder)와 접촉성을 향상시켜 궁극적으로 타이어 제품의 품질 향상을 도모하게 되는 효과가 있다. In addition, in the molding process, the shape of the green tire is manufactured to be round by the folded part of the tread extrudate member, so that contact with the bladder on the inner surface of the green tire during the vulcanization process is improved and ultimately the tire It has the effect of promoting product quality improvement.

도 1는, 본 발명에 따른 타이어 제조용 트레드 압출물부재를 도시한 도면.
도 2는, 도 1에 나타낸 트레드 압출물부재를 이용하여 성형공정에서 성형된 그린타이어를 도시한 도면.
도 3a)b)는, 도 1에 나타낸 트레드 압출물부재의 다른 실시 예를 도시한 도면. 1 is a view showing a tread extrudate member for manufacturing a tire according to the present invention.
FIG. 2 is a view showing a green tire molded in a molding process using the tread extrudate member shown in FIG. 1. FIG.
3a)b) is a view showing another embodiment of the tread extrudate member shown in FIG.

본 발명을 충분히 이해하기 위해서 본 발명의 바람직한 실시 예를 첨부되는 도면을 참조하여 설명한다. 본 발명의 실시 예는 여러 가지 형태로 변형될 수 있으며, 본 발명의 범위가 아래에서 상세히 설명하는 실시 예로 한정되는 것으로 해석되어서는 안 된다. 본 실시 예는 당 업계에서 평균적인 지식을 가진 자에게 본 발명을 보다 완전하게 설명하기 위하여 제공 되는 것이다. 따라서 도면에서의 요소의 형상 등은 보다 명확한 설명을 강조하기 위해서 과장되어 표현될 수 있다. 각 도면에서 동일한 부재는 동일한 참조 부호로 도시한 경우가 있음을 유의하여야 한다. 또한, 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 공지 기능 및 구성에 대한 상세한 기술은 생략된다.In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the shape of elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that, in each drawing, the same members are sometimes denoted by the same reference numerals. In addition, detailed descriptions of well-known functions and configurations determined to unnecessarily obscure the gist of the present invention will be omitted.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예를 설명함으로써, 본 발명의 타이어 제조용 트레드 압출물부재를 상세히 설명한다.Hereinafter, a tread extrudate member for tire manufacturing of the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings.

본 발명에 따른 타이어 제조용 트레드 압출물부재(10)는, 도 1에 도시한 바와 같이, 정련공정과, 반제품공정과, 성형공정과, 가류공정 순으로 각 공정 중 반제품 공정을 거쳐 제조된다. As shown in FIG. 1 , the extruded tread member 10 for tire manufacturing according to the present invention is manufactured through a semi-finished product process among each process in the order of a refining process, a semi-finished product process, a molding process, and a vulcanization process.

또한, 상기 반제품공정내에서 타이어 고무를 압출하는 압출공정을 통해 제조된 반제품 상태의 트레드 압출물부재(10)는, 도 1에 도시한 바와 같이, 일정 길이와 폭으로 형성되는 압출물 몸체(11)와, 상기 압출물 몸체(11)의 폭 방향 측의 양변을 따라 간격을 두고 부분 절개하여 형성되는 접힘부(12:12a,12b,12c)를 포함하여 이루어진다.In addition, as shown in FIG. 1, the tread extrudate member 10 in a semi-finished state manufactured through an extrusion process of extruding tire rubber in the semi-finished product process has an extrudate body 11 formed with a predetermined length and width, as shown in FIG. ), and a folded portion (12:12a, 12b, 12c) formed by partially cutting at intervals along both sides of the width direction of the extrudate body 11 .

또한, 상기 접힘부(12a)에는, 도 1,2에 도시한 바와 같이, 그린 타이어(20)에서 숄더부(22)측으로 접힐 때 트레드 압출물부재(10)의 가장자리 부분에서 오버랩이나 고무가 뭉치게 되는 것을 방지할 수 있도록 다수 형성되는 제1 등변사다리꼴 체(a1)와, 상기 제1 등변사다리꼴 체(a1)의 경사부(a2) 사이에 형성되되, 일정 간격으로 벌어져서 고무의 오버랩이나 뭉치게 되는 것을 방지할 수 있도록 형성되는 V형 사이홈(a3)들을 포함하여 이루어진다.In addition, in the folded portion 12a, as shown in FIGS. 1 and 2 , when the green tire 20 is folded toward the shoulder portion 22 , an overlap or rubber is bundled at the edge of the tread extrudate member 10 . It is formed between the first isosceles trapezoidal body (a1), which is formed in large number to prevent it from becoming, and the inclined portion (a2) of the first isosceles trapezoidal body (a1), and spreads at regular intervals to overlap or bundle the rubber. V-shaped between grooves (a3) that are formed to prevent it from being made.

또한, 상기 접힘부(12b)는, 도 3a)에 도시한 바와 같이, 성형공정 및 가류공정에서 가압되어 숄더부(22)측으로 접힐 때 트레드 압출물부재(10)의 길이 방향으로 형성되는 양 측 가장자리 부분이 오버랩되거나 뭉치게 되는 것을 방지할 수 있도록 형성되는 반원체(b1)와, 상기 반원체(b1) 사이에 반호형 사이홈(b3)을 두고 일정 간격으로 벌어져서 오버랩되거나 뭉치게 되는 것을 방지할 수 있도록 일정 간격을 두고 반복적으로 형성되는 등변곡선꼴 체(b2)들을 포함하여 이루어진다.In addition, as shown in Fig. 3a), the folded portion 12b is pressed in the forming process and vulcanizing process and is formed in the longitudinal direction of the tread extrudate member 10 when folded toward the shoulder 22 side. A semi-circular body (b1) formed so as to prevent the edge portions from overlapping or aggregating, and a semi-arc-shaped groove (b3) between the semi-circular body (b1) and spaced apart at regular intervals to prevent overlapping or aggregation It consists of isosceles curvilinear bodies (b2) that are repeatedly formed at regular intervals to be able to do so.

또한, 상기 접힘부(12c)는, 도 3b)에 도시한 바와 같이, 성형공정 및 가류공정에서 가압되어 숄더부(22)에 접힐 때 트레드 압출물부재(10)의 길이 방향으로 형성되는 양 측 가장자리 부분이 오버랩이나 고무가 뭉치게 되는 것을 방지할 수 있도록 일정 간격을 두고 반복적으로 형성되는 제2 등변사다리꼴 체(c1)와, 상기 제2 등변사다리꼴 체(c1) 사이에 경사형 사이홈(b3)을 두고 일정 간격으로 벌어져서 오버랩되거나 뭉치게 되는 것을 방지할 수 있도록 일정 간격을 두고 반복적으로 형성되는 등변삼각꼴 체(c2)들을 포함하여 이루어진다.In addition, as shown in Fig. 3b), the folded portion 12c is pressed in the forming process and vulcanizing process and is formed in the longitudinal direction of the tread extrudate member 10 when folded on the shoulder portion 22 on both sides. A second isosceles trapezoidal body (c1) which is repeatedly formed at regular intervals to prevent the edge portions from overlapping or aggregation of rubber, and an inclined groove (b3) between the second isosceles trapezoidal body (c1) ) and is made including equilateral triangular bodies (c2) that are repeatedly formed at regular intervals to prevent overlapping or agglomeration by being spaced apart at regular intervals.

또한, 상기 V형 사이홈(a3), 반호형 사이홈(b3), 경사형 사이홈(c3)들은, 도 1,2와 도 3a)b)에 도시한 바와 같이, 성형공정 및 가류공정에서 압축될 때 간격이 좁아지면서 트레드 압출물부재(10)의 폭 방향 양측 가장자리 부분이 주름지거나 겹치거나 뭉치지 않도록 함으로써, 숄더부(22) 측의 표면이 균일하게 형성되도록 한다.In addition, the V-shaped inter-groove (a3), semi-arc inter-groove (b3), and inclined inter-groove (c3) are, as shown in FIGS. 1, 2 and 3a) b), in the molding process and vulcanization process. When compressed, the gap is narrowed so that both edges of the tread extrudate member 10 in the width direction are not wrinkled, overlapped, or agglomerated, so that the surface of the shoulder portion 22 is uniformly formed.

또한, 상기 접힘부(12)에서 제1 등변사다리꼴 체(a1) 또는 반원체(b1)와 등변곡선꼴 체(b2) 또는 제2 등변사다리꼴 체(c1)와 등변삼각꼴 체(c2)들은, 도 1,2와 도 3a)b)에 도시한 바와 같이, 성형공정 및 가류공정에서 압축되어 간격이 좁아질 때 주름지거나 겹치거나 뭉치지 않도록 함으로써, 숄더부(22)의 표면이 균일하게 형성되도록 한다.In addition, in the folded portion 12, the first isosceles trapezoidal body (a1) or semicircle (b1) and the isosceles curvilinear body (b2) or the second isosceles trapezoidal body (c1) and the isosceles triangular body (c2) are, As shown in FIGS. 1, 2 and 3a)b), the surface of the shoulder 22 is uniformly formed by not wrinkling, overlapping, or agglomeration when it is compressed in the forming process and vulcanizing process and the gap is narrowed. .

이하, 상기한 바와 같이 이루어지는 본 발명의 실시 예 및 사용 예를 도면을 통하여 상세히 설명한다. Hereinafter, embodiments and examples of use of the present invention made as described above will be described in detail with reference to the drawings.

먼저, 타이어 제조 공정 중 반제품 공정에서 접힘부(12:12a,12b,12c)가 폭 방향 측 양변에 형성된 트레드 압출물부재(10)를 생산한다. 이때 트레드 압출물부재(10)에 형성되는 접힘부(12:12a,12b,12c)는, 제1 등변사다리꼴 체(a1)과 V형 사이홈(a3), 반원체(b1)와 등변곡선꼴 체(b2), 제2 등변사다리꼴 체(c1)와 등변삼각꼴 체(c2), 등으로 형성된다. 이외에도 여러가지 형태로 형성될 수 있다. First, in the semi-finishing process of the tire manufacturing process, the tread extrudate member 10 in which the folded portions 12: 12a, 12b, and 12c are formed on both sides of the width direction is produced. In this case, the folded portions 12: 12a, 12b, and 12c formed in the tread extrudate member 10 are formed with the first isosceles trapezoidal body a1 and the V-shaped groove a3, the semicircular body b1 and the isosceles curve shape. A sieve (b2), a second isosceles trapezoidal sieve (c1), an isosceles triangular sieve (c2), and the like are formed. In addition, it may be formed in various forms.

이후, 접힘부(12:12a,12b,12c)가 형성된 트레드 압출물부재(10)는, 성형공정과 가류공정순으로 공정에 투입된다. Thereafter, the extruded tread member 10 on which the folded portions 12: 12a, 12b, and 12c are formed is introduced into the process in the order of the forming process and the vulcanizing process.

트레드 압출물부재(10)는, 도2에 도시한 바와 같이, 가압되고 성형되면서 부착됨으로써 그린 타이어(20)를 형성하게 된다. 이때 그린 타이어(20)의 숄더부(22)측에 형성된 트레드 압출물부재(10)는 접힘부(12:12a,12b,12c)에 의하여 주름지거나 겹치거나 뭉치지 않아 균일한 표면을 형성하게 된다. 즉, 접힘부(12:12a,12b,12c)의 제1 등변사다리꼴 체(a1)과 V형 사이홈(a3), 반원체(b1)와 등변곡선꼴 체(b2), 제2 등변사다리꼴 체(c1)와 등변삼각꼴 체(c2), 등에 의하여 성형공정과 가류공정에서 가압되더라도 트레드 압출물부재(10)에 미리 형성된 여러가지 형태로 접힘부(12)에 형성된 틈새공간들에 의하여 숄더부(22)의 표면이 균일하게 형성되도록 하는 장점이 있어 타이어 품질을 향상시키게 된다. As shown in FIG. 2 , the tread extrudate member 10 is attached while being pressed and molded to form a green tire 20 . At this time, the tread extrudate member 10 formed on the shoulder portion 22 side of the green tire 20 is not wrinkled, overlapped, or agglomerated by the folded portions 12: 12a, 12b, 12c to form a uniform surface. That is, the first isosceles trapezoidal body (a1) and the V-shaped groove (a3) of the folded portions 12:12a, 12b, 12c, the semicircular body (b1) and the isosceles curvilinear body (b2), the second isosceles trapezoidal body (c1) and the isosceles triangular body (c2), even when pressed in the molding process and vulcanization process, the shoulder part ( 22) has the advantage of uniformly forming the surface, which improves tire quality.

이상에서 설명된 본 발명의 타이어 제조용 트레드 압출물부재의 실시 예는 예시적인 것에 불과하며, 본 발명이 속한 기술분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시 예가 가능하다는 점을 잘 알 수 있을 것이다. 그러므로 본 발명은 상기의 상세한 설명에서 언급되는 형태로만 한정되는 것은 아님을 잘 이해할 수 있을 것이다. 따라서 본 발명의 진정한 기술적 보호 범위는 첨부된 특허청구범위의 기술적 사상에 의해 정해져야 할 것이다. 또한, 본 발명은 첨부된 청구범위에 의해 정의되는 본 발명의 정신과 그 범위 내에 있는 모든 변형물과 균등물 및 대체물을 포함하는 것으로 이해되어야 한다.The embodiment of the tread extruded member for tire manufacturing of the present invention described above is merely exemplary, and various modifications and equivalent other embodiments are possible by those of ordinary skill in the art to which the present invention pertains. will be well known. Therefore, it will be well understood that the present invention is not limited to the form mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents and substitutions falling within the spirit and scope of the invention as defined by the appended claims.

10:트레드 압출물부재 11:압출물 몸체
12(12a,12b,12c):접힘부 20:그린 타이어
22:숄더부 a1:제1 등변사다리꼴 체
a2:경사부 a3:V형 사이홈
b1:반원체 b3:반호형 사이홈
b2:등변곡선꼴 체 c1:제2 등변사다리꼴 체
c2:등변삼각꼴 체10: tread extrudate member 11: extrudate body
12 (12a, 12b, 12c): Folded part 20: Green tire
22: shoulder part a1: first isosceles trapezoidal sieve
a2: Inclined part a3: V-shaped inter-groove
b1: semi-circular body b3: semi-arc interstitial groove
b2: isosceles curvilinear sieve c1: second isosceles trapezoidal sieve
c2: isosceles triangle

Claims (6)

정련공정과, 반제품공정과, 성형공정과, 가류공정 순으로 각 공정을 거쳐 제조가 이루어지는 타이어 제조 방법에 있어서,
상기 반제품공정내의 타이어 고무를 압출하는 압출공정을 통해 제조된 반제품 상태의 트레드 압출물부재(10)는,
일정 길이와 폭으로 형성되는 압출물 몸체(11)와,
상기 압출물 몸체(11)의 폭 방향 측의 양변을 따라 간격을 두고 부분 절개하여 형성되는 접힘부(12b)를 포함하며,
상기 접힘부(12b)는,
성형공정 및 가류공정에서 가압되어 숄더부(22)측으로 접힐 때 트레드 압출물부재(10)의 길이 방향으로 형성되는 양 측 가장자리 부분이 오버랩되거나 뭉치게 되는 것을 방지할 수 있도록 일정 간격을 두고 반복적으로 형성되는 반원체(b1)와,
상기 반원체(b1) 사이에 반호형 사이홈(b3)을 두고 일정 간격으로 벌어져서 오버랩되거나 뭉치게 되는 것을 방지할 수 있도록 일정 간격을 두고 반복적으로 형성되는 등변곡선꼴 체(b2)들을 포함하여 이루어지는 것을 특징으로 하는 타이어 제조용 트레드 압출물부재.In the tire manufacturing method in which manufacturing is performed through each process in the order of a refining process, a semi-finished product process, a forming process, and a vulcanization process,
The tread extrudate member 10 in a semi-finished state manufactured through an extrusion process of extruding tire rubber in the semi-finished process,
An extrudate body 11 formed of a certain length and width,
It includes a folded portion (12b) formed by partially incising at intervals along both sides of the extrudate body (11) in the width direction,
The folded portion (12b) is,
In the molding process and vulcanization process, when pressed and folded toward the shoulder part 22, both edge portions formed in the longitudinal direction of the tread extrudate member 10 are repeatedly spaced apart to prevent overlapping or aggregation. The formed semicircle (b1), and
A semi-arc-shaped groove (b3) is placed between the semicircular bodies (b1) to prevent overlapping or agglomeration by placing a semi-arc-shaped groove (b3) between the semicircular bodies (b1). A tread extrudate member for tire manufacturing, characterized in that. 삭제delete 삭제delete 정련공정과, 반제품공정과, 성형공정과, 가류공정 순으로 각 공정을 거쳐 제조가 이루어지는 타이어 제조 방법에 있어서,
상기 반제품공정내의 타이어 고무를 압출하는 압출공정을 통해 제조된 반제품 상태의 트레드 압출물부재(10)는,
일정 길이와 폭으로 형성되는 압출물 몸체(11)와,
상기 압출물 몸체(11)의 폭 방향 측의 양변을 따라 간격을 두고 부분 절개하여 형성되는 접힘부(12c)를 포함하며,
상기 접힘부(12c)는,
성형공정 및 가류공정에서 가압되어 숄더부(22)에 접힐 때 트레드 압출물부재(10)의 길이 방향으로 형성되는 양 측 가장자리 부분이 오버랩이나 고무가 뭉치게 되는 것을 방지할 수 있도록 일정 간격을 두고 반복적으로 형성되는 제2 등변사다리꼴 체(c1)와,
상기 제2 등변사다리꼴 체(c1) 사이에 경사형 사이홈(b3)을 두고 일정 간격으로 벌어져서 오버랩되거나 뭉치게 되는 것을 방지할 수 있도록 일정 간격을 두고 반복적으로 형성되는 등변삼각꼴 체(c2)들을 포함하여 이루어지는 것을 특징으로 하는 타이어 제조용 트레드 압출물부재.In the tire manufacturing method in which manufacturing is performed through each process in the order of a refining process, a semi-finished product process, a forming process, and a vulcanization process,
The tread extrudate member 10 in a semi-finished state manufactured through an extrusion process of extruding tire rubber in the semi-finished process,
An extrudate body 11 formed of a certain length and width,
and a folded portion (12c) formed by partially cutting the extrudate body (11) at intervals along both sides of the width direction side,
The folded portion 12c,
When pressed in the molding process and vulcanization process and folded on the shoulder part 22, both edge portions formed in the longitudinal direction of the tread extrudate member 10 are spaced apart to prevent overlap or rubber aggregation. A second isosceles trapezoidal body (c1) repeatedly formed,
The isosceles triangular sieves (c2) that are repeatedly formed at regular intervals to prevent overlapping or agglomeration by placing an inclined groove (b3) between the second isosceles trapezoidal sieves (c1) A tread extrudate member for tire manufacturing, characterized in that it comprises. 제 1 항에 있어서,
상기 반호형 사이홈(b3)들은,
성형공정 및 가류공정에서 압축될 때 간격이 좁아지면서 트레드 압출물부재(10)의 폭 방향 양측 가장자리 부분이 주름지거나 겹치거나 뭉치지 않도록 함으로써, 숄더부(22) 측의 표면이 균일하게 형성되도록 하는 것을 특징으로 하는 타이어 제조용 트레드 압출물부재.The method of claim 1,
The semi-arc type between grooves (b3) are,
When compressed in the molding process and vulcanization process, the gap is narrowed and the width direction both edges of the tread extrudate member 10 are not wrinkled, overlapped, or agglomerated, so that the surface of the shoulder part 22 is uniformly formed. A tread extrudate member for tire manufacturing, characterized in that. 제 1 항에 있어서,
상기 접힘부(12b)에서 반원체(b1)와 등변곡선꼴 체(b2)들은,
성형공정 및 가류공정에서 압축되어 간격이 좁아질 때 주름지거나 겹치거나 뭉치지 않도록 함으로써, 숄더부(22)의 표면이 균일하게 형성되도록 하는 것을 특징으로 하는 타이어 제조용 트레드 압출물부재.The method of claim 1,
The semicircular body (b1) and the isosceles curvilinear body (b2) in the folded portion 12b are,
A tread extruded member for tire manufacturing, characterized in that the surface of the shoulder portion (22) is uniformly formed by not wrinkling, overlapping, or agglomeration when the gap is narrowed by being compressed in the molding process and vulcanization process.
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0596652A (en) * 1991-10-11 1993-04-20 Bridgestone Corp Manufacture of reclaimed tire
JPH06191225A (en) * 1992-12-25 1994-07-12 Ohtsu Tire & Rubber Co Ltd :The Tread rubber layer for retreaded tire
KR970026018A (en) * 1995-11-30 1997-06-24 쟝-위베 모노 Pre-hardened tread strip
JP2009269423A (en) * 2008-05-01 2009-11-19 Yokohama Rubber Co Ltd:The Tread for retreaded tire, and retreaded tire using the same
KR20170134870A (en) 2016-05-27 2017-12-07 한국타이어 주식회사 Temperature control device of tire vulcanizing mold
KR20190068178A (en) * 2017-12-08 2019-06-18 넥센타이어 주식회사 extruded of multi tread for pneumatic tire having structure for preventing separated layer
KR102040039B1 (en) 2017-12-20 2019-11-04 넥센타이어 주식회사 Tire vulcanizer mold temperature control device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0596652A (en) * 1991-10-11 1993-04-20 Bridgestone Corp Manufacture of reclaimed tire
JPH06191225A (en) * 1992-12-25 1994-07-12 Ohtsu Tire & Rubber Co Ltd :The Tread rubber layer for retreaded tire
KR970026018A (en) * 1995-11-30 1997-06-24 쟝-위베 모노 Pre-hardened tread strip
JP2009269423A (en) * 2008-05-01 2009-11-19 Yokohama Rubber Co Ltd:The Tread for retreaded tire, and retreaded tire using the same
KR20170134870A (en) 2016-05-27 2017-12-07 한국타이어 주식회사 Temperature control device of tire vulcanizing mold
KR20190068178A (en) * 2017-12-08 2019-06-18 넥센타이어 주식회사 extruded of multi tread for pneumatic tire having structure for preventing separated layer
KR102040039B1 (en) 2017-12-20 2019-11-04 넥센타이어 주식회사 Tire vulcanizer mold temperature control device

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