KR100253982B1 - Platen type segment mold - Google Patents

Platen type segment mold Download PDF

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Publication number
KR100253982B1
KR100253982B1 KR1019970046619A KR19970046619A KR100253982B1 KR 100253982 B1 KR100253982 B1 KR 100253982B1 KR 1019970046619 A KR1019970046619 A KR 1019970046619A KR 19970046619 A KR19970046619 A KR 19970046619A KR 100253982 B1 KR100253982 B1 KR 100253982B1
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KR
South Korea
Prior art keywords
mold
temperature
side mold
line
platen
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KR1019970046619A
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Korean (ko)
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KR19990025118A (en
Inventor
범석훈
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신형인
금호산업주식회사
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Priority to KR1019970046619A priority Critical patent/KR100253982B1/en
Publication of KR19990025118A publication Critical patent/KR19990025118A/en
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Publication of KR100253982B1 publication Critical patent/KR100253982B1/en

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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
    • B29D30/0662Accessories, details or auxiliary operations
    • 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
    • B29D30/02Solid tyres ; Moulds therefor
    • 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
    • B29D30/0606Vulcanising moulds not integral with vulcanising presses
    • B29D2030/0607Constructional features of the moulds
    • B29D2030/0617Venting devices, e.g. vent plugs or inserts
    • 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
    • B29D30/0662Accessories, details or auxiliary operations
    • B29D2030/0666Heating by using fluids
    • 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
    • B29D30/0662Accessories, details or auxiliary operations
    • B29D2030/0675Controlling the vulcanization processes

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  • 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 tire of high quality is provided by efficiently and properly controlling vulcanizing temperature of a side mold portion of a platen type segment mold. CONSTITUTION: A raw tire is installed in a segment mold with a cooling line and with a steam line(3) and high temperature steam is supplied to the stem line(SL) inside a platen(1) located at a downside of the segment mold. The high temperature steam is supplied to heat a side mold section(2) along the stem line(3) and a vulcanizing energy partially vulcanizes the raw tire. When the side mold section arrives at a highest temperature, cooling water is poured in with a pump into the cooling line embedded in the side mold section(2) for cooling the vulcanizing mold. A tread mold portion of the side mold section continues to rise up to a specific temperature while the side mold section(2) is maintained at a permitted temperature so uneven vulcanizing energy as to be supplied to the tread portion and to the side wall portion of the tire under vulcanization.

Description

과가류 방지용 냉각라인이 설치된 플래튼형 세그먼트 몰드 및 그의 가류방법Platen segment mold with cooling line for preventing over-vulcanization and vulcanization method

본 발명은 플래튼형 세그먼트 몰드로 타이어를 가류할 때 발생하는 싸이드 월 부위의 과가류 및 베어 불량을 줄일 수 있는, 과가류 방지용 냉각라인이 설치된 플래튼형 세그먼트 몰드 및 이 몰드를 이용한 타이어의 가류방법에 관한 것이다.The present invention relates to a platen segment mold and a vulcanization of a tire using the mold, wherein the platen segment mold is provided with a cooling line for preventing over-curing, which can reduce over-curing and bare defects in the sidewall portion generated when the tire is vulcanized by the platen segment mold. It is about a method.

일반적으로, 타이어 가류시 사용되는 가류 몰드는 크게 투피스 몰드(two piece mold)와 세그먼트 몰드(segment mold)로 구분되며, 이중 상기 세그먼느 몰드는 트래드 부분과 싸이드 부분이 몇 조각의 몰드분할체로 분리 가능하다.In general, the vulcanization mold used in the tire vulcanization is largely divided into a two piece mold and a segment mold, and the segmen mold can be divided into several pieces of mold divider in the tread part and the side part. Do.

그러나, 이러한 구조의 세그먼트 몰드를 구성하는 몰드분할체증, 전열판(platen, 이하 플래튼으로 통칭함)에 직접 연결되어 있는 싸이드 몰드부는 여타 몰드부분보다 빨리 가열되는 경향이 있기 때문에, 특별히 온도제어를 하지 않으면 예컨대 트래드 부분에 비해 200%이상 과가류되어 싸이드 월 부분이 녹아 내리는 멜팅(melting)현상 또는 베어불량이 생기게 된다.However, since the mold mould, which is directly connected to the mold splitter and the heat transfer plate (hereinafter referred to as platen) constituting the segment mold of such a structure, tends to heat faster than other mold parts, temperature control is not particularly performed. Otherwise, for example, a melting phenomenon or a bare defect occurs in which the sidewall portion melts due to over-vulcanization of 200% or more compared to the tread portion.

본 발명은 이러한 상기의 문제점을 개선하기 위하여 안출한 것으로, 플래튼형 세그먼트 몰드의 싸이드 몰드부의 가류 온도를 유효적절하게 제어하여 고품질의 타이어를 제조함이 본 발명의 목적이다.The present invention has been made to solve the above problems, and it is an object of the present invention to manufacture a high quality tire by effectively controlling the vulcanization temperature of the side mold portion of the platen segment mold.

본 발명에서는 이러한 상기의 목적을 달성하기 위하여, 트래드 몰드부와 분리 가능한 싸이드 몰드부에 스팀 라인과 냉각라인울 각각 별도의 라인으로 내장하여, 상기 싸이드 몰드부가 최고온에 도달하였을 때, 상기 스팀 라인이 잠김과 동시에 냉각라인이 열리도록 하므로써 상기 싸이드 몰드부가 정해진 온도 이상으로 과열되지 않게 한다.In order to achieve the above object, in the present invention, the steam line and the cooling line are respectively built into separate lines of the tread mold part and the separable mold mold part, and the steam line when the side mold part reaches the maximum temperature, Simultaneously with this locking, the cooling line is opened so that the side mold part is not overheated above a predetermined temperature.

제1도는 본 발명에 따른 플래튼형 세그먼트 몰드의 싸이드 부분만을 도시한 단면도,1 is a cross-sectional view showing only the side portion of the platen segment mold according to the present invention,

제2(a), (b)도는 제1도의 배관 연결부위를 확대한 일 실시예의 확대 단면도,2 (a), (b) is an enlarged cross-sectional view of an embodiment in which the piping connection portion of FIG.

제3도는 본 발명에 따른 플래튼형 세그먼트 몰드의 싸이드 부분의 배관 평면도.3 is a plan view of the piping of the side portion of the platen segment mold according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 플래튼(platen) 2 : 싸이드 몰드부1: platen 2: side mold part

3 : 스팀 라인(steam line) 4 : 어댑터(adapter)3: steam line 4: adapter

5 : 냉각라인5: cooling line

이하, 첨부된 도면을 참조하여 본 발명에 따른 과가류 방지용 냉각라인이 설치된 플래튼형 세그먼트 몰드의 구성과 이 몰드를 이용한 타이어 가류방법을 단계별로 상술한다.Hereinafter, with reference to the accompanying drawings will be described in detail step by step the configuration of the platen-type segment mold and the tire vulcanization method using the mold to prevent the over-vulcanization cooling line according to the present invention.

도면중 제1도는 본 발명에 따른 플래튼형 세그먼트 몰드의 싸이드 부분만을 도시한 단면도이다. 도면에서 보는 바와 같이, 본 발명의 세그먼트 몰드를 구성하는 싸이드 몰드부(2)에는 하부의 플래튼(1) 내부를 지나고 있는 스팀 라인(SL)과 증기의 이동이 가능한 형태로 스팀 라인(3)이 연결·내장되어 있으며, 필요시 마다 냉각수가 단속적(斷續的)으로 흐르는 냉각라인이 상기 스팀 라인(3)과 별도로 내장되어 있다.1 is a cross-sectional view showing only the side portion of the platen segment mold according to the present invention. As shown in the drawings, the side mold portion 2 constituting the segment mold of the present invention, the steam line (SL) passing through the inside of the lower platen (1) and the steam line (3) in the form that can move the steam The cooling line is connected and built-in, and a cooling line in which cooling water flows intermittently whenever necessary is incorporated separately from the steam line 3.

이 때, 상기 스팀 라인(3)과 냉각라인은 본 발명의 세그먼트 몰드에 방사상으로 형성되는 벤트를 막지 않도록 서로 어긋나게 설치함이 바람직하다.At this time, it is preferable that the steam line 3 and the cooling line are installed to be offset from each other so as not to block a vent formed radially in the segment mold of the present invention.

도면중 제 2(a), (b)도는 상기 제 1도의 배관 연결부위를 확대한 2가지 실시예의 확대 단면도로써, 플래튼 속을 지나는 스팀 라인(SL)의 단부(端部)와 싸이드 몰드부에 내장된 스팀 라인(3)의 단부 사이를 통상 구조의 외삽형 또는 내삽형 어댑터(4)로 연결하여, 상기 라인(SL, 3)을 통해 증기의 유동이 가능하게 하였다.2 (a) and 2 (b) are enlarged cross-sectional views of two embodiments in which the pipe connection portion of FIG. 1 is enlarged, and an end portion and a side mold portion of the steam line SL passing through the platen are shown. Between the ends of the steam line (3) embedded in it is connected by an extrapolated or interpolated adapter (4) of a conventional structure, to enable the flow of steam through the lines (SL, 3).

도면중 제 3도는 본 발명에 따른 플래튼형 세그먼트 몰드의 싸이드 부분의 배관 핑면도로써, 평면상에서 볼 때 대체로 원형인 싸이드 몰드부(2)의 내부에, 방사상으로 형성된 벤트(6)를 가리지 않도록 상기 스팀 라인(3)이 성형(星形)으로 내장되어 있다.3 is a pipe ping surface of the side portion of the platen segment mold according to the present invention, in which the vent 6 formed radially is not covered by the inside of the generally circular side mold portion 2 in plan view. The steam line 3 is embedded in a molding.

뿐만 아니라, 상기 스팀 라인(3)과는 별도로 냉각라인(5)이 설치되어 있어서 상기 싸이드 몰드부(2)의 온도가 최고온에 도달한 경우, 본 발명의 가류장치 전체를 제어하는 제어반에 의해 상기 냉각라인(5)에 냉각수를 공급하는 펌프가 작동된다.In addition, the cooling line 5 is installed separately from the steam line 3, when the temperature of the side mold portion 2 reaches the maximum temperature, by the control panel for controlling the entire vulcanizing apparatus of the present invention A pump for supplying cooling water to the cooling line 5 is operated.

이와 같은 구성의 플래튼형 세그먼트 몰드로 타이어를 가류할 경우에, 종래와 마찬가지 방식으로 상기 몰드에 생 타이어를 장착하여 상측 가류기의 커버를 닫은 다음, 상기 플래튼(1) 속을 지나는 스팀 라인(SL)에 고열 상태의 증기를 공급하여 상기 스팀 라인(SL)의 단부에 장착된 어댑터(4)를 통해 싸이드 몰드부(2) 속의 스팀 라인(3)에 이 고열 상태의 증기가 흐르게 한다. 이러한 상태를 잠시 유지하고 있으면, 상기 싸이드 몰드부(2)의 표면온도가 점차 상승하여 제어반에 미리 설정한 온도에 도달하게 되고, 이때 상기 냉각라인(5)에 적정량의 냉각수를 공급하여 상기 싸이드 몰드부(2)가 냉각라인(5) 속을 흐르는 냉각수와 열교환을 통해 적정 온도에 머물게 한다. 상기의 과정중, 냉각수를 공급하는 시점은 미리 행하여진 T/C Test의 결과를 참조하여 만든 시간-온도 테이블을 미리 제어반에 입력해 놓는 방식으로 행할 수도 있으며, 또는 상기 싸이드 몰드부(2)의 온도를 열전쌍이나 기타 온도센서로 감지하여 이때의 온도를 제어반에 설정한 온도와 비교하여 적부의 신호에 따라서 펌프(미도시)가 가동되게 할 수도 있다.When the tire is vulcanized by the platen segment mold having such a configuration, a steam line passing through the platen 1 is mounted by closing the cover of the upper vulcanizer by attaching the raw tire to the mold in the same manner as in the prior art. The steam in a high temperature state is supplied to SL so that the steam in the high temperature state flows through the adapter 4 mounted at the end of the steam line SL to the steam line 3 in the side mold part 2. If this state is maintained for a while, the surface temperature of the side mold part 2 gradually rises to reach a preset temperature in the control panel. At this time, the coolant 5 is supplied with an appropriate amount of cooling water to the side mold. The part 2 is maintained at an appropriate temperature through heat exchange with the cooling water flowing in the cooling line 5. In the above process, the time of supplying the cooling water may be performed by inputting a time-temperature table, which is made with reference to the result of the T / C Test performed in advance, into the control panel, or by The temperature may be sensed by a thermocouple or other temperature sensor, and the temperature may be compared with the temperature set in the control panel so that the pump (not shown) may be operated according to the appropriate signal.

따라서, 상기의 과정으로 타이어를 가류할 경우, 트래드 몰드부(미도시)의 온도는 계속하여 어느 일정온도를 향해 올라가지만, 싸이드 몰드부(2)의 온도는 냉각라인(5)과 스팀 라인(3)의 적절한 온도 상승기능 및 온도 하강기능이 교대로 작용하여 허락된 일정 온도를 유지하게 된다.Therefore, when the tire is vulcanized by the above process, the temperature of the tread mold portion (not shown) continues to rise to a certain temperature, but the temperature of the side mold portion 2 is the cooling line 5 and the steam line ( Appropriate temperature rise function and temperature decrease function of 3) work alternately to maintain the allowed temperature.

그러므로, 이상과 같이 구성되는 본 발명의 과가류 방지용 냉각라인이 설치된 플래튼형 세그먼트 몰드를 사용하여 앞에서 언급한 방식대로 가류할 경우 타이어의 과가류 및 베어불량을 방지할 수 있고, 제조업자가 원하는 정도의 가류도로 타이어를 가류할 수 있으며, 이로 인해 타이어의 품실향상과 성산성 향상을 용이하게 달성할 수 있다.Therefore, when using the platen-type segment mold provided with the over-current prevention cooling line of the present invention configured as described above to vulcanize in the manner described above, it is possible to prevent the over-vulcanization and bare defects of the tire, It is possible to vulcanize the tire with a degree of vulcanization, and thus it is possible to easily achieve the improvement of the tire's product quality and the improved acidity.

Claims (2)

플러튼형 세그먼트 물드로 생타이어를 가류하는 방법에 있어서,In the method for vulcanizing raw tires with fullerton-type segment mulch, 상기 세그먼트 몰드 내부에 생타이어를 장착한 다음 상기 몰드의 하면에 설치된 플래튼(1) 속의 스팀 라인(SL)에 고온의 증기를 공급하여 상기 생타이어를 부분 가류하다가 상기 몰드의 싸이드 몰드부(2)가 최고온에 도달하였을 때 상기 싸이드 몰드부(2)를 냉각시켜서, 트래드 몰드부는 계속 어느 일정 온도까지 상승시키면서 상기 싸이드 몰드부(2)는 허용된 온도로 유지되게 하여 가류중인 타이어의 트래드부와 싸이드 월 부에 불균일한 가류 에너지가 전달되게 가류함을 특징으로 하는 타이어 가류방법.The raw tire is mounted inside the segment mold, and then hot steam is supplied to the steam line SL in the platen 1 installed on the lower surface of the mold to partially cure the live tire, and then the side mold portion 2 of the mold is formed. When the c) reaches the highest temperature, the side mold part 2 is cooled, so that the tread mold part continues to rise to a certain temperature while the side mold part 2 is maintained at an acceptable temperature so that the tread part of the vulcanized tire Tire vulcanization method characterized in that the non-uniform vulcanization energy is transmitted to the side wall portion. 플래튼형 세그먼트 몰드에 있어서,In the platen segment mold, 플래튼(1) 속을 지나는 스팀 라인(SL)의 단부와 싸이드 몰드부(2)에 내장된 스팀 라인(3)의 단부 사이를 어댑터(4)로 연결하여 서로 증기의 유동이 가능하게 하되, 상기 싸이드 몰드부(2)의 내부에 방사상으로 형성된 벤트(6)를 상기 스팀 라인(3)이 가리지 않도록 상기 스팀 라인(3)을 성형(星形)으로 내장하고, 상기 스팀 라인(3)과는 별도로 상기 싸이드 몰드부(2)에 냉각라인(5)을 설치하여 상기 싸이드 몰드부(2)의 온도가 최고온에 도달하였을 때, 가류장치 전체를 제어하는 제어반에 의해 상기 냉각라인(5)에 냉각수를 공급하는 핌프가 작동되게 한 것을 특징으로 하는 과가류 방지용 냉각라인이 설치된 플래튼형 세그먼트 몰드.By connecting the adapter 4 between the end of the steam line (SL) passing through the platen 1 and the end of the steam line (3) embedded in the side mold portion (2) to enable the flow of steam to each other, The steam line 3 is formed in a shape so that the steam line 3 does not cover the vent 6 formed radially inside the side mold part 2, and the steam line 3 and The cooling line 5 is separately installed in the side mold part 2 so that when the temperature of the side mold part 2 reaches a maximum temperature, the cooling line 5 is controlled by a control panel that controls the entire vulcanization apparatus. A platen segment mold with an over-current prevention cooling line, characterized in that the pimp for supplying the cooling water is operated.
KR1019970046619A 1997-09-10 1997-09-10 Platen type segment mold KR100253982B1 (en)

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JPS57187727U (en) * 1981-05-26 1982-11-29

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Publication number Priority date Publication date Assignee Title
JPS57187727U (en) * 1981-05-26 1982-11-29

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