KR20030033737A - Curing Mould with Venting Gap formed in the Direction of Tire Rotation - Google Patents

Curing Mould with Venting Gap formed in the Direction of Tire Rotation Download PDF

Info

Publication number
KR20030033737A
KR20030033737A KR1020010065847A KR20010065847A KR20030033737A KR 20030033737 A KR20030033737 A KR 20030033737A KR 1020010065847 A KR1020010065847 A KR 1020010065847A KR 20010065847 A KR20010065847 A KR 20010065847A KR 20030033737 A KR20030033737 A KR 20030033737A
Authority
KR
South Korea
Prior art keywords
tire
forming
gap
circumferential
segment
Prior art date
Application number
KR1020010065847A
Other languages
Korean (ko)
Inventor
김영진
Original Assignee
금호산업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 금호산업 주식회사 filed Critical 금호산업 주식회사
Priority to KR1020010065847A priority Critical patent/KR20030033737A/en
Publication of KR20030033737A publication Critical patent/KR20030033737A/en

Links

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
    • B29D30/02—Solid tyres ; Moulds therefor
    • 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)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0606—Vulcanising moulds not integral with vulcanising presses
    • B29D2030/0607—Constructional features of the moulds
    • B29D2030/0616—Surface structure of the mould, e.g. roughness, arrangement of slits, grooves or channels
    • 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)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0606—Vulcanising moulds not integral with vulcanising presses
    • B29D2030/0607—Constructional features of the moulds
    • B29D2030/0617—Venting devices, e.g. vent plugs or inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

PURPOSE: A vulcanizing mold having a gap along the circumference of a tire is provided to improve the appearance and the quality, to prevent lowering of performance of the tire, and to maintain and repair conveniently by decreasing the number of segments forming the curing mold and restricting deformation of rubber. CONSTITUTION: Segments(1,2) forming a circumferential groove of a tire is separably combined with a segment(4) forming a circumferential rib or a block pattern. A circumferential gap(10) is formed between separable segments to discharge air, and the gap is formed along the circumference of the tire. Plural clearances(11) are formed by circumferentially dividing the segment for forming the circumferential rib or the block pattern outside the gap. The appearance and the quality are improved by discharging air efficiently with forming gaps and clearances circumferentially, and expenses are reduced by preventing loss of material without trimming.

Description

타이어의 원주방향을 따라 갭이 형성된 가류 몰드{Curing Mould with Venting Gap formed in the Direction of Tire Rotation}Curing Mold with Venting Gap formed in the Direction of Tire Rotation}

본 발명은 타이어의 원주방향을 따라 갭이 형성된 가류 몰드에 관한 것으로서, 특히 가류시 공기 배출을 원활하게 하고 식출 고무의 발생을 억제할 수 있으며, 유지 보수가 용이한 타이어의 가류 몰드에 관한 것이다.The present invention relates to a vulcanization mold having a gap formed along the circumferential direction of the tire, and more particularly, to a vulcanizing mold of a tire that can smoothly discharge air during suppression and suppress generation of extraction rubber, and is easy to maintain.

가류시 금형내의 공기를 배출하기 위해, 종래에는 금형에 벤트 홀(Vent Hole)을 형성하는 것이 일반적이었다. 그러나, 이 경우에는 상기 벤트 홀을 통해 식출고무가 형성되기 쉬워, 최종 타이어 제품의 외관이 좋지 않게 될 뿐만 아니라 타이어를 구성하는 각종 코드층과 고무 반제품이 식출되는 고무에 의해 변형되어 타이어의 성능 저하가 초래되었다.In order to discharge air in the mold at the time of vulcanization, it was conventional to form a vent hole in the mold. However, in this case, the extraction rubber is easily formed through the vent hole, and not only the appearance of the final tire product is deteriorated, but also various cord layers constituting the tire and the rubber semi-finished product are deformed by the rubber to be extracted, thereby degrading the performance of the tire. Resulted.

이러한 문제점을 해결하기 위해, 벤트 홀을 없애고 대신 금형을 분할하여 그 사이에 틈새(gap)를 형성한 벤트리스 몰드(ventless mould)가 공지되어 있다. 이러한 금형으로는, 도 3과 같이, 타이어의 반경방향으로 다수 분할되어 있는 수직분할형 금형이 대표적이다. 여기서, 틈새는 참조번호 3으로 표시되어 있다. 그러나, 이 경우에는 가류시 그린타이어와 함께 조립하는 과정에서 타이어 원주방향의 특정 구간의 틈새가 불균형적으로 되기 쉬워, 그 구간의 공기 배출이 원활치 못하고 불균일한 식출이 발생되므로, 품질이 크게 저하될 수 있다는 문제점이 있었다. 또한, 이러한 틈새는 타이어 둘레를 따라 50∼150개 정도로 많은 개수가 필요하므로, 유지 보수하기가 곤란할 뿐만 아니라, 완제품에도 다수의 벤트 라인의 흔적이 미세하게 남아있게 되어 미관상으로도 좋지 않았다.In order to solve this problem, ventless molds are known which eliminate the vent holes and instead divide the mold to form a gap therebetween. As such a metal mold | die, as shown in FIG. 3, the vertical division | mold metal mold | die currently divided in the radial direction of a tire is typical. Here, the gap is indicated by the reference number 3. However, in this case, the gap of a certain section in the circumferential direction of the tire tends to be disproportionately in the process of assembling with the green tire during vulcanization, and the air is not discharged smoothly and uneven extraction occurs, so that the quality may be greatly deteriorated. There was a problem that could be. In addition, such a gap is required to maintain a large number of about 50 to 150 along the circumference of the tire, it is difficult to maintain, as well as traces of a number of vent lines left in the finished product is not good appearance.

본 발명은 상기한 문제점을 해결하기 위해 안출된 것으로서, 발명의 목적은 벤트리스 몰드에 있어서 식출에 의한 타이어 성능 저하 및 불균일한 식출에 의한 외관품질의 저하를 방지하기 위한 가류 몰드를 제공하는데 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a vulcanization mold for preventing deterioration of tire performance due to extraction and deterioration of appearance quality due to uneven extraction in a ventless mold.

도 1은 본 발명에 따른 가류 몰드의 횡단면도이고,1 is a cross-sectional view of a vulcanization mold according to the invention,

도 2는 본 발명에 따른 가류 몰드의 평면도이고,2 is a plan view of a vulcanization mold according to the invention,

도 3은 종래기술에 의한 가류 몰드의 평면도이다.3 is a plan view of a vulcanization mold according to the prior art.

※주요 도면부호의 설명※ Explanation of main drawing code

1... 센터 그루브 형성용 몰드 세그멘트1 ... Mold Segment for Center Groove Formation

2... 사이드 그루브 형성용 몰드 세그멘트2. Mold segment for side groove formation

3... 종래 가류 몰드에 형성된 틈새3. Clearances formed in conventional vulcanization molds

4... 리브나 블럭 형성용 몰드 세그멘트4. Mold segment for rib or block formation

10... 본 발명의 가류 몰드에 형성된 틈새10. Gaps formed in the vulcanization mold of the present invention

11... 원주방향 리브나 블럭 패턴을 형성하는 세그멘트에 형성된 틈새11 ... Clearances formed in segments forming circumferential rib or block patterns

상기한 목적을 달성하기 위해, 본 발명은, 타이어의 원주방향 그루브(groove)를 형성하는 세그멘트를 원주방향 리브나 블럭 패턴을 형성하는 세그멘트와 분리하여 결합하되, 상기 분리된 세그멘트 사이에 공기가 배출되기 위한 틈새를 형성한 것을 특징으로 한다.In order to achieve the above object, the present invention, the segment forming the circumferential groove (groove) of the tire is combined with the segment forming a circumferential rib or block pattern, the air is discharged between the separated segments Characterized by forming a gap to become.

상기 타이어의 원주방향 그루브(goove)를 형성하는 세그멘트와 원주방향 리브나 블럭 패턴을 형성하는 세그멘트 사이의 틈새 외(外)에도 원주방향 리브나 블럭 패턴을 형성하는 세그멘트를 원주방향으로 분할하여 형성된 틈새를 부가적으로 복수개 형성하여, 공기배출을 보다 효율적으로 수행하는 것이 바람직하다.A gap formed by dividing the segment forming the circumferential rib or block pattern in the circumferential direction in addition to the gap between the segment forming the circumferential groove of the tire and the segment forming the circumferential rib or block pattern. It is preferable to form a plurality of additionally to perform air discharge more efficiently.

이하, 첨부도면을 참조하여 본 발명의 일 실시예를 설명한다.Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

도 1 및 도 2에 본 발명에 따른 타이어 가류 몰드의 구성이 도시되어 있다.1 and 2 show the configuration of the tire vulcanization mold according to the invention.

도면에서와 같이, 본 발명의 가류 몰드는 타이어 원주 방향을 따라 형성되는 공기 배출용 틈새(10)를 구비하고 있다. 이 때, 상기 공기 배출용 틈새(10)는 가류시 공기가 숨어 있을 수 있는 장소, 즉 에어 트랩(air trap)이 발생될 수 있는 부분에 설치하여 갇힌 공기를 용이하게 방출해야 한다. 여러 실험을 행한 결과, 타이어 그루브를 형성하는 부분을 다른 부분으로부터 분리하는 것이 에어 트랩에 의한 식출고무의 발생이나 변형의 발생을 가장 효과적으로 방지할 수 있는 구조라는 것을 알아내었다. 또한, 상기 그루브 부분외에도 타이어 가류공정에 지장을 주지 않는 범위에서 금형을 원주방향으로 분할하는 것이 공기배출에 효과적일 것은물론이다.As shown in the figure, the vulcanizing mold of the present invention has an air discharge clearance 10 formed along the tire circumferential direction. At this time, the air discharge gap 10 should be installed in a place where air can be hidden during vulcanization, that is, a part where an air trap can be generated, to easily discharge the trapped air. As a result of various experiments, it was found that separating the parts forming the tire grooves from other parts is the structure which can most effectively prevent the occurrence of extraction rubber or deformation caused by the air trap. In addition, it is a matter of course that dividing the mold in the circumferential direction in addition to the groove portion does not interfere with the tire vulcanization process is effective for the air discharge.

이와 같은 사실에 기초하여, 본 발명의 가류 금형은, 타이어의 원주방향 그루브(goove)를 형성하는 세그멘트(1)(2)를 원주방향 리브나 블럭 패턴을 형성하는 세그멘트(4)와 분리하여 결합하도록 하였다. 그리고, 상기 분리된 세그멘트 사이에 공기가 배출되기 위한 틈새(10)를 형성하였다.Based on this fact, the vulcanization mold of the present invention separates the segments 1 and 2 forming the circumferential groove of the tire from the segments 4 forming the circumferential rib or block pattern. It was made. In addition, a gap 10 for discharging air is formed between the separated segments.

또한, 상기 타이어의 원주방향 그루브(goove)를 형성하는 세그멘트(1)(2)와 원주방향 리브나 블럭 패턴을 형성하는 세그멘트(4) 사이의 틈새(10) 외(外)에 원주방향 리브나 블럭 패턴을 형성하는 세그멘트(4)를 원주방향으로 분할하여 형성된 틈새(11)를 복수개 형성하였다.A circumferential rib outside the gap 10 between the segments 1 and 2 forming the circumferential groove of the tire and the segment 4 forming the circumferential rib or block pattern. A plurality of gaps 11 formed by dividing the segments 4 forming the block pattern in the circumferential direction were formed.

여기서, 타이어 폭방향을 따라, 틈새(10)(11)는 보통 3∼20개 이하에서 결정될 수 있고, 금형을 이루는 각 세그멘트들의 개수도 3∼20개 이하에서 결정될 수 있다.Here, along the tire width direction, the gaps 10 and 11 may be usually determined in the range of 3 to 20 or less, and the number of segments forming the mold may also be determined in the range of 3 to 20 or less.

이와 같이, 본 발명에 의한 가류 몰드는 원주방향으로 형성된 틈새를 가지기 때문에, 원주방향의 특정구간에 불균일한 식출이 형성되는 경우는 거의 없어진다.As described above, since the vulcanization mold according to the present invention has a gap formed in the circumferential direction, there is almost no occurrence of uneven extraction in a specific section in the circumferential direction.

상기한 바와 같은 구성의 본 발명에 따르면, 식출고무의 발생을 억제할 수 있어 외관품질을 크게 높일 수 있고 타이어 성능 저하를 방지할 수 있다는 이점이 있다.According to the present invention having the configuration described above, there is an advantage that the occurrence of the extraction rubber can be suppressed, the appearance quality can be greatly improved, and the performance degradation of the tire can be prevented.

또한, 이에 따라 불필요한 식출고무에 의한 재료 손실을 방지할 수 있으며, 최종 트리밍(trimming) 작업이 불필요해지므로 생산성 및 비용의 절감을 도모할 수있다.In addition, material loss due to unnecessary extraction rubber can be prevented, and final trimming is unnecessary, so that productivity and cost can be reduced.

또한, 세그멘트의 분할이 타이어의 그루브를 형성하는 부분에서 원주방향으로 이루어지기 때문에 세그멘트의 개수를 크게 줄일 수 있다. 따라서, 유지보수도 용이하게 될 뿐만 아니라, 가류시 설치 오차가 크게 줄어들고 원주방향으로 불균일한 식출을 억제할 수 있다는 또 다른 이점도 있다.In addition, since the division of the segment is made in the circumferential direction at the portion forming the groove of the tire, the number of segments can be greatly reduced. Therefore, there is another advantage that not only maintenance is easy, but also installation errors during vulcanization are greatly reduced and non-uniform extraction in the circumferential direction can be suppressed.

Claims (3)

몰드에 공기 배출용 틈새를 형성한 가류 몰드에 있어서,In a vulcanizing mold in which a gap for air discharge is formed in the mold, 타이어의 원주방향 그루브(goove)를 형성하는 세그멘트(1)(2)를 원주방향 리브나 블럭 패턴을 형성하는 세그멘트(4)와 분리하여 결합하되, 상기 분리된 세그멘트 사이에 공기가 배출되기 위한 원주방향 틈새(10)를 형성한 것을 특징으로 하는, 타이어의 원주방향을 따라 갭이 형성된 가류 몰드.A segment (1) (2) forming a circumferential groove (groove) of the tire is separated from the segment (4) forming a circumferential rib or block pattern, and combined, but a circumference for discharging air between the separated segments A vulcanization mold in which a gap is formed along the circumferential direction of the tire, wherein a directional gap 10 is formed. 제1항에 있어서,The method of claim 1, 상기 타이어의 원주방향 그루브(goove)를 형성하는 세그멘트(1)(2)와 원주방향 리브나 블럭 패턴을 형성하는 세그멘트(4) 사이의 틈새(10) 외(外)에 원주방향 리브나 블럭 패턴을 형성하는 세그멘트(4)를 원주방향으로 분할하여 형성된 틈새(11)가 복수로 형성되어 있는 것을 특징으로 하는, 타이어의 원주방향을 따라 갭이 형성된 가류 몰드.A circumferential rib or block pattern outside the gap 10 between the segment (1) 2 forming the circumferential groove of the tire and the segment 4 forming the circumferential rib or block pattern. A vulcanization mold having a gap formed along a circumferential direction of the tire, characterized in that a plurality of gaps (11) formed by dividing the segment (4) forming the circumferential direction are formed in plural. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 타이어 원주방향을 따라 형성된 상기 틈새(10)(11)가 타이어 폭당 3∼20개 포함되어 있는 것을 특징으로 하는, 타이어의 원주방향을 따라 갭이 형성된 가류 몰드.Variation formed along the circumferential direction of the tire, characterized in that the gap (10) (11) formed in the tire circumferential direction is included 3 to 20 per tire width.
KR1020010065847A 2001-10-25 2001-10-25 Curing Mould with Venting Gap formed in the Direction of Tire Rotation KR20030033737A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020010065847A KR20030033737A (en) 2001-10-25 2001-10-25 Curing Mould with Venting Gap formed in the Direction of Tire Rotation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020010065847A KR20030033737A (en) 2001-10-25 2001-10-25 Curing Mould with Venting Gap formed in the Direction of Tire Rotation

Publications (1)

Publication Number Publication Date
KR20030033737A true KR20030033737A (en) 2003-05-01

Family

ID=29566257

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020010065847A KR20030033737A (en) 2001-10-25 2001-10-25 Curing Mould with Venting Gap formed in the Direction of Tire Rotation

Country Status (1)

Country Link
KR (1) KR20030033737A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261804A (en) * 1991-07-29 1993-11-16 Maschinenbau Herbert Gmbh & Co. Profiled segment for a vulcanized tire mold
JPH06218733A (en) * 1993-01-25 1994-08-09 Sumitomo Rubber Ind Ltd Production of tire and device therefor
KR20010045926A (en) * 1999-11-09 2001-06-05 조충환 Tire mold having a vent, and the vent forming method on the tire mold
KR20010098140A (en) * 2000-04-28 2001-11-08 조충환 Ventless vulcanizing mold

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261804A (en) * 1991-07-29 1993-11-16 Maschinenbau Herbert Gmbh & Co. Profiled segment for a vulcanized tire mold
JPH06218733A (en) * 1993-01-25 1994-08-09 Sumitomo Rubber Ind Ltd Production of tire and device therefor
KR20010045926A (en) * 1999-11-09 2001-06-05 조충환 Tire mold having a vent, and the vent forming method on the tire mold
KR20010098140A (en) * 2000-04-28 2001-11-08 조충환 Ventless vulcanizing mold

Similar Documents

Publication Publication Date Title
US7290996B2 (en) Tire vulcanizing mold
CN100460179C (en) Method and apparatus for mold venting
JP5010385B2 (en) Tire molding die and pneumatic tire using the same
EP0523958B1 (en) Curing mold for pneumatic tires
JP4785552B2 (en) Pneumatic tire
JPH11300746A (en) Mold for molding tire and its production
KR100835589B1 (en) Tread mold made puzzle-mold and semi-segment
US6896836B2 (en) Vulcanization process for pneumatic tire and mold therefor
KR101933093B1 (en) Tire mold
KR20030033737A (en) Curing Mould with Venting Gap formed in the Direction of Tire Rotation
KR20040110147A (en) Ventless Mold for Curing Green Tire
JP2018089849A (en) Mold for tire
KR100443645B1 (en) Vent Plug and Tire Curing Mould Mounted with the Same
JP3878719B2 (en) Tire molding mold and pneumatic tire
KR102119455B1 (en) Multi-partitioned green tire poultry type mold of whole manufacturing feeler gauge with for development prevent bur
JP2002052537A (en) Mold for vulcanizing pneumatic tire
JPH05220748A (en) Mold for vulcanizing tire
KR100361897B1 (en) Air venting structure for tire mold
KR100411018B1 (en) Tread Ring Insert in Ventless Type Mold
JPH05220753A (en) Manufacture of tire vulcanizing mold
KR101996290B1 (en) Multi-partitioned green tire poultry type mold of whole manufacturing feeler gauge with for development prevent bur
KR101990317B1 (en) Multi-partitioned green tire poultry type mold with feeler gauge
KR100338303B1 (en) Ventless vulcanizing mold
JPH09226321A (en) Pneumatic tire
JP7415128B2 (en) Vulcanization mold for tire manufacturing and method for manufacturing pneumatic tires using the same

Legal Events

Date Code Title Description
A201 Request for examination
N231 Notification of change of applicant
E902 Notification of reason for refusal
E601 Decision to refuse application