KR100889981B1 - Vulcanizer for bladder - Google Patents

Vulcanizer for bladder Download PDF

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Publication number
KR100889981B1
KR100889981B1 KR1020070124934A KR20070124934A KR100889981B1 KR 100889981 B1 KR100889981 B1 KR 100889981B1 KR 1020070124934 A KR1020070124934 A KR 1020070124934A KR 20070124934 A KR20070124934 A KR 20070124934A KR 100889981 B1 KR100889981 B1 KR 100889981B1
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South Korea
Prior art keywords
core
mold
bladder
rubber
cap
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KR1020070124934A
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Korean (ko)
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배성렬
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한국타이어 주식회사
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0654Flexible cores therefor, e.g. bladders, bags, membranes, diaphragms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0654Flexible cores therefor, e.g. bladders, bags, membranes, diaphragms
    • B29D2030/0659Details or accessories for the flexible cores not otherwise provided for

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

A bladder vulcanizer is provided to minimize engagement error and prevent the overflow of rubber by combining the end core and the core cap along the slant wall of the end core bottom protrusion. A bladder vulcanizer comprises a core mold(3) forming the inner surface of a bladder(6), an upper mold(1) and a lower mold(2) forming the exterior of the bladder, an end core(4) having a rubber injection port(5) installed at the bottom center of the upper mold, a core cap(7) installed at the upper center of the core mold in order to form a rubber flow path between the end core, and an air injection port(9) formed on the core cap under the rubber injection port on the same line.

Description

브래더 가류기 {Vulcanizer for Bladder}Vulcanizer for Bladder}

본 발명은 차량용 타이어를 생산하기 위한 브래더(Bladder)의 가류기에 관한 것으로, 특히 브래더 인출을 위한 코어금형 상부에 설치된 엔드코어부(End-Core)와 코어캡의 개량에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vulgarizer of a Bradder for producing tires for vehicles, and more particularly, to an improvement of an end-core and a core cap installed on an upper part of a core mold for taking out a Brader.

브래더는 차량용 타이어의 가류공정에서 타이어의 내벽을 형성시키기 위한 것이다. The bladder is for forming the inner wall of the tire in the vulcanization process of the vehicle tire.

도 2은 종래의 브래더 가류기를 도시하고 있다. 이와 같은 가류기는 상부금형(101)과 이에 상응하는 하부금형(102) 및 코어금형(Core Mold)(103)으로 구성되고, 코어금형의 상부에 엔드코어부(End-Core)(104)가 설치되며, 엔드코어부(104)에 고무주입부(105)가 형성되어있다. 도 2에 도시된 브래더 가류기는 소위 NNE(None-Nozele End Core) 방식으로, 고무주입구(105)는 구멍형상의 노즐에 의해 금형 안으로 주입하는 노즐식과는 달리 브래더(106)에 접하는 주입부분이 엔드코어 말단의 테두리를 잇는 링 형상으로 형성된 것이 특징이다. 고무주입구(105)를 통해서 주입 된 고무는 엔드코어부(104)와 코어캡(107)이 형성하는 약 3mm 간격의 틈사이로 이동하여 상하부금형과 코어금형 사이로 들어가게 된다.2 shows a conventional bradder vulcanizer. Such a vulcanizer is composed of an upper mold 101, a lower mold 102 and a core mold 103 corresponding thereto, and an end core 104 is installed on the core mold. The rubber injection portion 105 is formed in the end core portion 104. 2 is a so-called NNE (None-Nozele End Core) method, the rubber injection hole 105 is in contact with the bladder 106, unlike the nozzle type that is injected into the mold by a hole-shaped nozzle It is characterized by being formed in a ring shape connecting the edge of the end core end. The rubber injected through the rubber inlet 105 is moved between the gaps of about 3 mm formed by the end core part 104 and the core cap 107 to enter between the upper and lower molds and the core mold.

이러한 종래의 가류기에 있어서, 금형으로부터 가류된 브래더(106)를 인출하기 위해서는 하부금형(102)과 코어금형(103)의 제거가 선행되어야 한다. 하부금형(102)을 제거한 후에 코어금형(103)을 하측방향으로 빼내어 제거하게 된다. 엔드코어부(104)와 코어캡(107)은 그 사이에 고무층(108)이 형성되어있어 잘 분리되지 않기 때문에, 공기주입구(109)로 공기를 주입하여 코어캡(107)을 분리시켜 제거하고 브래더(106)을 인출하게 된다.In this conventional vulcanizer, the removal of the lower mold 102 and the core mold 103 must be preceded in order to withdraw the bradders 106 vulcanized from the mold. After removing the lower mold 102, the core mold 103 is pulled out and removed. Since the end core part 104 and the core cap 107 do not separate well because a rubber layer 108 is formed therebetween, air is injected into the air inlet 109 to separate and remove the core cap 107. The brother 106 is withdrawn.

상기 종래의 브래더 가류기에 있어서, 완성된 브래더(106)는 상기 고무층(108) 때문에 인출이 용이하지 않으며, 또, 엔드코어부(104)와 코어캡(107)의 결합에 있어서 3mm간격의 틈을 형성시키며 결합해야 하기 때문에 편차가 발생하기 쉬워 고무가 엔드코어부와 상부금형 사이로 유입되어 식출을 발생시키는 문제가 있었다.In the conventional bladder vulcanizer, the finished bladder 106 is not easy to be pulled out because of the rubber layer 108, and the coupling of the end core portion 104 and the core cap 107 is 3 mm apart. There is a problem that the rubber is introduced between the end core portion and the upper mold because the gap is easy to occur because it must be formed in a gap to form the extraction.

이에, 본 발명은 공기주입구를 고무주입구 밑으로 위치시키고, 엔드코어부에 코어캡을 관통하며 경사벽을 갖는 돌출부를 형성시킴으로써 상기와 같은 문제를 해결하고자 한다.Accordingly, the present invention is to solve the above problems by placing the air inlet under the rubber inlet, and through the core cap to form a protrusion having an inclined wall through the core cap.

즉, 본 발명에 따르면, 가류된 브래더를 상기 공기주입구를 통해 주입된 공기로 밀어내어 용이하게 인출할 수 있고, 또한, 엔드코어와 코어캡이 엔드코어 저부 돌출부의 경사벽을 따라 결합함으로써 결합편차가 최소화되어 고무의 식출을 방지하는 효과가 있는 것이다.That is, according to the present invention, the vulcanized bladder can be easily drawn out by pushing the injected air through the air inlet, and the end core and the core cap are coupled by joining along the inclined wall of the end core bottom protrusion. The deviation is minimized to have an effect of preventing the extraction of the rubber.

본 발명은 브래더(6)의 내부면을 성형시키는 코어금형(3)과, 브래더의 외부면을 성형시키는 상부금형(1) 및 하부금형(2)으로 구성되고, 상부금형(1)의 저부 중앙에 고무주입구(5)를 가지는 엔드코어(4)가 설치되고, 코어금형(3)의 상부 중앙에 상기 엔드코어(4)와의 사이에서 고무흐름로를 형성시키는 코어캡(7)이 설치되며, 코어캡(7)에 공기주입구(9)가 설치되는 것에 있어서, 상기 공기주입구(9)가 고무주입구(5)와 동일선상의 하부에 설치된 것을 특징으로 한다.The present invention is composed of a core mold (3) for forming the inner surface of the bladder (6), an upper mold (1) and a lower mold (2) for forming the outer surface of the bladder, the upper mold (1) An end core 4 having a rubber inlet 5 is provided at the center of the bottom, and a core cap 7 is formed at the upper center of the core mold 3 to form a rubber flow path between the end core 4. In the case where the air inlet 9 is installed in the core cap 7, the air inlet 9 is characterized in that it is installed in the lower line on the same line as the rubber inlet 5.

상기 공기주입구(9)는 코어캡(7)의 원주방향으로 8개가 설치되는 것이 바람직하며, 각 공기주입구(9)의 직경은 9-10mm인 것이 바람직하다. It is preferable that eight air inlets 9 are installed in the circumferential direction of the core cap 7, and the diameter of each air inlet 9 is preferably 9-10 mm.

이와같은 구성은 공기주입구(9)로 주입되는 공기가 브래더(6)와 고무층(8)이 이어져있는 부분을 밀어줌으로써, 가류후 브래더의 인출을 용이하게 할 수 있게 한다. 도 2에 도시된 종래의 공기주입구(9)는 브래더(6)와 너무 멀고, 주입되는 공기가 상대적으로 크고 무거운 고무주입구(5)의 고무에 막혀 브래더에 도달하기 어려워 공기가 브래더(6)를 밀어주는 효과까지 기대하기 어려웠었다. 즉, 본 발명은 공기주입구를 고무주입구(5) 밑에 위치시킴으로써, 공기의 주입으로 엔드코어(4)와 코어캡(7)의 분리는 물론, 브래더(6)를 밀어주어 인출을 용이하게 하는 효과까지 있게한 것이다.Such a configuration makes it possible to facilitate the withdrawal of the bladder after vulcanization by pushing the air injected into the air inlet 9 to the portion where the bladder 6 and the rubber layer 8 are connected. The conventional air inlet 9 shown in FIG. 2 is too far from the bladder 6, and the air to be injected is blocked by the rubber of the rubber inlet 5, which is relatively large and heavy, making it difficult to reach the bladder. 6) It was hard to expect the effect of boosting. That is, according to the present invention, the air inlet is positioned below the rubber inlet 5 to separate the end core 4 and the core cap 7 by the injection of air, and to push the bladder 6 to facilitate the extraction. It even worked.

본 발명은 이에 나아가 엔드코어(4)와 코어캡(7)의 결합의 편차를 해소하기 위해 다음과 같은 구성을 가진다. 본 발명의 엔드코어(4)는 저부에 돌출부(41)를 가지고 , 상기 돌출부(41)는 코어캡(7)을 관통하며, 상기 돌출부(41)와 코어캡(7) 이 접하는 벽면이 수평면에 대하여 이루는 각(a)이 95-97도로 경사지게 한다. 이러한 구성은 엔드코어(4)와 코어캡(7)이 경사면을 따라 결합하게 됨으로써 결합시 편차를 최소화하는 효과가 있는 것이다.The present invention further has the following configuration to solve the deviation of the coupling of the end core 4 and the core cap (7). The end core 4 of the present invention has a protrusion 41 at the bottom, and the protrusion 41 penetrates the core cap 7, and the wall surface where the protrusion 41 and the core cap 7 come into contact with each other on a horizontal plane. The angle a with respect to the angle is inclined at 95-97 degrees. This configuration is that the end core 4 and the core cap 7 is coupled along the inclined surface, thereby minimizing the variation in the coupling.

도 1은 본 발명의 브래더 가류기의 요부 단면도.BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a sectional view of principal parts of a bradder vulcanizer of the present invention.

도 2는 종래의 브래더 가류기의 요부 단면도.2 is a sectional view of principal parts of a conventional bradder vulcanizer;

<주요부분에 대한 부호의 설명><Description of the code for the main part>

1. 상부금형1. Upper mold

2. 하부금형2. Lower mold

3. 코어금형3. Core mold

4. 엔드코어(end core)4. End core

41. 돌출부41.Protrusion

5. 고무주입구5. Rubber inlet

6. 브래더6. Brader

7. 코어캡7. Core Cap

8. 고무층8. Rubber layer

9. 공기주입구9. Air inlet

Claims (3)

브래더의 내부면을 성형시키는 코어금형과, 브래더의 외부면을 성형시키는 상부금형 및 하부금형으로 구성되고, 상부금형의 저부 중앙에 고무주입구를 가지는 엔드코어가 설치되고, 코어금형의 상부 중앙에 상기 엔드코어와의 사이에서 고무흐름로를 형성시키는 코어캡이 설치되며, 코어캡에 공기주입구가 설치되는 것에 있어서, 상기 공기주입구가 고무주입구와 동일선상의 하부에 설치된 것을 특징으로 하는 브래더 가류기.A core mold for forming the inner surface of the bladder and an upper mold and a lower mold for forming the outer surface of the bladder, and an end core having a rubber inlet at the bottom center of the upper mold is installed, and the upper center of the core mold. A core cap is formed on the core to form a rubber flow path therebetween, and the air inlet is installed in the core cap, wherein the air inlet is installed in the same line as the rubber inlet. Vulcanizer. 제 1항에 있어서, 상기 공기주입구는 코어캡의 원주방향으로 8개가 설치되며, 각 공기주입구의 직경은 9-10mm인 것을 특징으로 하는 브래더 가류기.The air conditioner of claim 1, wherein eight air inlets are provided in the circumferential direction of the core cap, and each air inlet has a diameter of 9-10 mm. 제 1항에 있어서, 엔드코어는 저부에 돌출부를 가지고, 상기 돌출부는 코어캡을 관통하며, 상기 돌출부와 코어캡이 접하는 벽면이 수평면에 대하여 95-97도의 경사를 갖는 것을 특징으로 하는 브래더 가류기.2. The bradder vulcanization according to claim 1, wherein the end core has a protrusion at the bottom, the protrusion penetrates the core cap, and a wall surface in which the protrusion and the core cap contact each other has an inclination of 95 to 97 degrees with respect to a horizontal plane. group.
KR1020070124934A 2007-12-04 2007-12-04 Vulcanizer for bladder KR100889981B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101409529B1 (en) 2013-04-22 2014-06-19 금호타이어 주식회사 Apparatus for manufacturing tire curing bladder
KR101934791B1 (en) * 2018-01-05 2019-01-04 고려기술주식회사 Manufacturing method of over slam bumper for vehicle
CN117048094A (en) * 2023-10-11 2023-11-14 山东豪迈机械科技股份有限公司 Vulcanizing equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030049762A (en) * 2001-12-17 2003-06-25 한국타이어 주식회사 Bladder vulcanizing mold
KR100592059B1 (en) 2005-04-15 2006-06-21 한국타이어 주식회사 Vulcanizing mold for tire bladder
KR100743971B1 (en) 2006-07-04 2007-08-01 한국타이어 주식회사 Vulcanizer for bladder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030049762A (en) * 2001-12-17 2003-06-25 한국타이어 주식회사 Bladder vulcanizing mold
KR100592059B1 (en) 2005-04-15 2006-06-21 한국타이어 주식회사 Vulcanizing mold for tire bladder
KR100743971B1 (en) 2006-07-04 2007-08-01 한국타이어 주식회사 Vulcanizer for bladder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101409529B1 (en) 2013-04-22 2014-06-19 금호타이어 주식회사 Apparatus for manufacturing tire curing bladder
KR101934791B1 (en) * 2018-01-05 2019-01-04 고려기술주식회사 Manufacturing method of over slam bumper for vehicle
CN117048094A (en) * 2023-10-11 2023-11-14 山东豪迈机械科技股份有限公司 Vulcanizing equipment
CN117048094B (en) * 2023-10-11 2024-02-02 山东豪迈机械科技股份有限公司 Vulcanizing equipment

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