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JPS5849232A - Vulcanizer - Google Patents

Vulcanizer

Info

Publication number
JPS5849232A
JPS5849232A JP14543981A JP14543981A JPS5849232A JP S5849232 A JPS5849232 A JP S5849232A JP 14543981 A JP14543981 A JP 14543981A JP 14543981 A JP14543981 A JP 14543981A JP S5849232 A JPS5849232 A JP S5849232A
Authority
JP
Japan
Prior art keywords
vulcanized
heat
sections
thickness
different thermal
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP14543981A
Other languages
Japanese (ja)
Inventor
Hitoshi Wakahara
若原 均
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokohama Rubber Co Ltd
Original Assignee
Yokohama Rubber Co Ltd
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 Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Priority to JP14543981A priority Critical patent/JPS5849232A/en
Publication of JPS5849232A publication Critical patent/JPS5849232A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B29D2030/0677Controlling temperature differences

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:To obtain the titled vulcanizer for vulcanizing large-sized tires by hot plates such as radial tires for passenger cars the thickness of the side wall sections of which is thin, by arranging sections having different thermal conductivities between heating sections and the object to be vulcanized in accordance with the thickness of the object. CONSTITUTION:The object to be vulcanized, that is, an unvulcanized tire 5 in molds 3, 4 is vulcanized by the heat from a heating section 6. In this case, to correspond to the thickness of the unvulcanized tire 5, the sections (a) such as the annular recesses 7 having different thermal conductivities are arranged between the heating section 6 and the unvulcanized tire 5 to constitute aimed vulcanizer.

Description

【発明の詳細な説明】 本発明は加硫装置に関し、さらに詳しくは、発熱部から
附与される熱によつ上金型内の被加硫物を加硫するよう
にした加硫装置の改良に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vulcanizing device, and more particularly to a vulcanizing device that vulcanizes a material to be vulcanized in an upper mold using heat imparted from a heat generating part. It is about improvement.

従来この種の装置には、発熱部を構成する熱板と金型の
間の伝熱を良くするための配慮のみがなされていた。即
ち、熱板と金型の接触面をできるだけ広くかつ平滑にし
ており、夫々の表面には、取付、製作その他の都合で止
むを得ない場合を除いて、溝、くぼみなどは設けてぃな
い。その結果、金型の肉厚の薄い所、即ち製品゛と熱板
の距離の小さい所では、他の所より多くの熱が製品に加
えられ、製品の加硫度にムラができる欠点があった。
Conventionally, in this type of device, consideration has only been given to improving heat transfer between a hot plate constituting a heat generating part and a mold. In other words, the contact surface between the hot plate and the mold is made as wide and smooth as possible, and there are no grooves or depressions on each surface unless it is unavoidable due to installation, manufacturing, or other reasons. . As a result, in areas where the mold wall thickness is thin, that is, in areas where the distance between the product and the hot plate is small, more heat is applied to the product than in other areas, resulting in uneven vulcanization of the product. Ta.

゛ これをさらに説明すると、例えば第1図(a) (
b)に示す熱板型タイヤ加硫装置において、特に(b)
図から明らかなように加硫に際し、サイドウオール部1
1は、ビード部10やショルダ一部12と比較すると肉
厚が薄いばかりでなく、発熱部を構成する上下各熱板1
及び2からの距離が小さいサイドウオール部11には、
これと比較して各熱板からの距離が大きいビード部10
及びショルダ一部12よりも多くの熱が伝わる関係上、
サイドウオール部11が前記ビード部10及びショルダ
一部12が加硫されるのを待っている間に過剰に加硫さ
れることになり、タイヤの性能上好ましくない。
゛ To further explain this, for example, Fig. 1(a) (
In the hot plate type tire vulcanizing apparatus shown in b), especially (b)
As is clear from the figure, during vulcanization, the sidewall portion 1
1 is not only thinner than the bead portion 10 and the shoulder portion 12, but also has upper and lower heating plates 1 constituting the heat generating portion.
and the side wall portion 11 having a small distance from 2,
The bead portion 10 has a larger distance from each hot plate compared to this.
And because more heat is transmitted than the shoulder part 12,
While the sidewall portion 11 is waiting for the bead portion 10 and the shoulder portion 12 to be vulcanized, the sidewall portion 11 is excessively vulcanized, which is unfavorable in terms of tire performance.

本発明の目的は、上述した問題点を解消し、被加硫物の
肉厚に対応した適正な熱量を被加硫物に附与でき、特に
大型タイヤの熱板加硫やすイドウオール部の肉厚が特に
薄い乗用車用ラジアルタイヤの熱板加硫に最適な加硫装
置を提供することにある。
It is an object of the present invention to solve the above-mentioned problems and to be able to impart an appropriate amount of heat to a material to be vulcanized corresponding to the wall thickness of the material to be vulcanized, in particular for hot plate vulcanization of large tires. To provide a vulcanizing device most suitable for hot plate vulcanization of particularly thin radial tires for passenger cars.

そしてその特徴とするところは、発熱部から附与される
熱によって金型内の被加硫物を加硫するようにした加硫
装置において、被加硫物の肉厚に対応せしめて、発熱部
と被加硫物との間に、熱伝導率の異なる部分を配置した
点にある。
The feature is that in a vulcanizing device that vulcanizes the object to be vulcanized in the mold by heat applied from the heat generating part, the heat generation The point is that parts having different thermal conductivities are arranged between the part and the object to be vulcanized.

以下、本発明を実施例により図面を参照して詳細に説明
する。
Hereinafter, the present invention will be explained in detail by way of examples with reference to the drawings.

第2図〜第5図は本発明の実施例からなる加硫装置を示
し、第2図(a) (b)は第1実施例で、(a)は断
面説明図、(b)は同要部拡大図、第3図(a) (b
)は第2実施例で(a)は断面説明図、(b)は同要部
拡大図、第4図は第3実施例で(a)は断面説明図、(
b)は同要部拡大図、(C)は同熱伝導率変更リングの
斜視図、第5図は第4実施例で(a)は断面説明図、(
b)は同要部拡大図、(C)は同熱伝導率変更リンク斜
視図である。
FIGS. 2 to 5 show a vulcanizing apparatus according to an embodiment of the present invention, FIGS. Enlarged view of main parts, Figure 3 (a) (b
) is the second embodiment, (a) is an explanatory cross-sectional view, (b) is an enlarged view of the same essential part, and FIG. 4 is the third embodiment, (a) is an explanatory cross-sectional view.
b) is an enlarged view of the same essential parts, (C) is a perspective view of the same thermal conductivity changing ring, FIG.
b) is an enlarged view of the same main part, and (C) is a perspective view of the same thermal conductivity changing link.

図においてEl +  E2 y E3及びE4はそれ
ぞれ本発明の実施例からなる熱板型タイヤ加硫装置であ
って、発熱部6から附与される熱によって金型3,4内
の被加硫物すなわち未加硫タイヤ5を加硫し得るように
なっており、未加硫タイヤ5の肉厚に対応せしめて、前
記発熱部6と未加硫タイヤ5との間に、熱伝導率の異な
る部分aを配置することにより構成されている。
In the figure, El + E2 y E3 and E4 are hot plate type tire vulcanizers each according to an embodiment of the present invention, and the materials to be vulcanized in the molds 3 and 4 are heated by the heat imparted from the heat generating part 6. In other words, the unvulcanized tire 5 can be vulcanized, and the heat generating part 6 and the unvulcanized tire 5 have different thermal conductivities depending on the wall thickness of the unvulcanized tire 5. It is constructed by arranging part a.

さらにこの構造を説明すると、上記各熱板型タイヤ加硫
装置El r E2 s E3及びE4は、内部に発熱
部6すなわちスチームキャビティを備えた一ト下熱板1
,2と、内部に未加硫タイヤ5の収納部を備えた上下金
型6.4とから構成されており、上下熱板1,20発熱
部6から上下金型6.4を介して未加硫タイヤ5に外側
から熱を加える一方、未加硫タイヤ5の内側から有圧蒸
気等により熱を加えることによって、未加硫タイヤを加
硫し得るようになっている。
To further explain this structure, each of the above-mentioned hot plate type tire vulcanizers El r E2 s E3 and E4 has a hot plate 1 equipped with a heat generating part 6, that is, a steam cavity inside.
, 2, and upper and lower molds 6.4 each having a housing for unvulcanized tires 5 inside. By applying heat to the vulcanized tire 5 from the outside and applying heat from the inside of the unvulcanized tire 5 using pressurized steam or the like, the unvulcanized tire can be vulcanized.

そして第1実施例においては第2図(a) (b)に示
すように、上下金型6,4のサイドウオール部11に対
応する外側面に、環状四部7が設けられており、タイヤ
の肉厚が他の部分と比較して薄く、また加硫に際し、金
型の肉厚も他の部分と比較して薄いサイドウオール部1
1への伝熱を適正化し得るようになっている。
In the first embodiment, as shown in FIGS. 2(a) and 2(b), four annular portions 7 are provided on the outer surfaces of the upper and lower molds 6, 4 corresponding to the sidewall portions 11. Sidewall part 1 whose wall thickness is thinner than other parts, and during vulcanization, the mold wall thickness is also thinner than other parts.
The heat transfer to 1 can be optimized.

また、第3図(a) (b)に示す第2実施例しま、発
熱部6を備えた熱板1,2のサイドウオール部11に対
応する部分の金型側面に、環状四部8を設けることによ
り、他の部分と熱伝導率の異なる部分aを形成した例で
ある。なお図中9はそれぞれ発熱部6から発生する熱流
線を示すものである。
In addition, in the second embodiment shown in FIGS. 3(a) and 3(b), an annular four portion 8 is provided on the side surface of the mold at a portion corresponding to the side wall portion 11 of the hot plates 1 and 2 provided with the heat generating portion 6. This is an example in which a portion a having a different thermal conductivity from other portions is formed by this. Note that numerals 9 in the figure indicate heat flow lines generated from the heat generating portion 6, respectively.

さらに第4図(a) (b) (C)に示す第3実施例
&家、前述したように上下熱板1,2と上下金型6,4
との間に熱伝導率の異なる部分aを形成する手段として
、リング状に形成した複数個の1ノングかもなる熱伝導
率変更リングGを熱板と金型との間に介在した例である
Furthermore, the third embodiment shown in FIGS.
This is an example in which a plurality of ring-shaped thermal conductivity changing rings G, which may be 1-long, are interposed between the hot plate and the mold as a means for forming a portion a with different thermal conductivity between the hot plate and the mold. .

この実施例の場合、小径の内側リングG1と大径の外側
リングG2との間に形成される空隙部G3が、金型外側
面のサイドウオール部11に対応する部分に形成される
ようになっている0従って前述した実施例と同様にタイ
ヤの肉厚力玉他の部分と比較して薄く、金型の肉厚も他
の部分と比較して薄いタイヤサイドウオール部11への
伝熱を、この空隙部G3によって適正イヒすることがで
きる。
In the case of this embodiment, the gap G3 formed between the small-diameter inner ring G1 and the large-diameter outer ring G2 is formed in a portion corresponding to the sidewall portion 11 on the outer surface of the mold. 0 Therefore, as in the embodiment described above, the thickness of the tire is thin compared to other parts, and the thickness of the mold is also thin compared to other parts. , this gap G3 allows proper cooling.

また、第5図(、) (b) (C)に示す第4実施例
&家、上述した第3実施例と同様に複数個の熱伝導率変
更リングGを熱板と金型との間に介在して、被加硫物に
適正な熱量を供給し得ろようにした例であるが、本実施
例にお〜・て&t、妻達した空隙部G3を形成するかわ
りに、小径の内側1ノングG1と大径の外側リングG2
との間にこの各1ノングGl 、 G2とは熱伝導率の
異なるfllえCfアスベスト等により形成したリング
G4を配置しである。
In addition, in the fourth embodiment shown in FIG. This is an example in which an appropriate amount of heat can be supplied to the object to be vulcanized by intervening in Long G1 and large diameter outer ring G2
A ring G4 made of a full Cf asbestos or the like having a different thermal conductivity from each of Gl and G2 is arranged between them.

従って前述した実施例、と同様に、タイヤの肉厚が他の
部分と比較して薄く、金型の肉厚も他の部分と比較して
薄いタイヤサイドウオール部11への伝熱を、このリン
グG4によって適正化することができる。
Therefore, similarly to the above-mentioned embodiment, the heat transfer to the tire sidewall portion 11, where the tire wall thickness is thinner than other portions, and the mold wall thickness is also thinner than other portions. It can be optimized by ring G4.

本発明は上述したように、発熱部から附与される熱によ
って金型内の被加硫物を加硫するようにした加硫装置に
おいて、被加硫物の肉厚に対応せしめて、発熱部と被加
硫物との間に1熱伝導率の異なる部分を配置したから、
被加硫物の肉厚に対応した適正な熱量を被加硫物に附与
することができる。
As described above, the present invention is a vulcanizing device that vulcanizes a material to be vulcanized in a mold using heat imparted from a heat generating part. Since a part with a different thermal conductivity is placed between the part and the material to be vulcanized,
An appropriate amount of heat corresponding to the wall thickness of the vulcanizable material can be imparted to the vulcanizable material.

従ってサイドウオール部の肉厚が特に薄い乗用車用ラジ
アルタイヤの加硫や、従来熱板型加硫装置では伝達熱量
の不均一から加硫できなかったトラック、バス用等大型
タイヤの加硫も可能とすることができる。
Therefore, it is possible to vulcanize radial tires for passenger cars with particularly thin sidewalls, as well as large tires for trucks and buses that could not be cured with conventional hot plate vulcanizers due to uneven heat transfer. It can be done.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図(a) (b)は従来の熱板型加硫装置を示すも
ので(、)は断面説明図、(b)は同要部の拡大図であ
る。また第2〜第5図は本発明の実施例からなる加硫装
置を示し、第2図(a) (b)は第1実施例で、(a
)は断面説明図、(b)は同要部拡大図、第3図(a)
(b)は第2実施例で(a)は断面説明図、(b)は同
要部拡大図、第4図は第3実施例で(a)は断面説明図
、(b)は同要部拡大図、(C)は同熱伝導率変更リン
グの斜棋図、第5図は第4実施例で(a)は断面説明図
、(b)は同要部拡大図、(C)は同熱伝導率変更リン
グの斜視図である。 5・・・被加硫物、6・・・発熱部、a・・・熱伝導率
の異なる部分。 代理人 弁理士 小 川 信 − 弁理士 野 口 賢 照 弁理士 斎 下 和 彦 C166 図 (1)) 図 (b) 3図 (b)
FIGS. 1(a) and 1(b) show a conventional hot plate type vulcanizing apparatus, in which (,) is an explanatory cross-sectional view, and (b) is an enlarged view of the main part. Further, FIGS. 2 to 5 show a vulcanizing apparatus according to an embodiment of the present invention, and FIGS. 2(a) and 2(b) show the first embodiment, and (a
) is an explanatory cross-sectional view, (b) is an enlarged view of the same main part, and Figure 3 (a)
(b) is a second embodiment, (a) is a cross-sectional explanatory diagram, (b) is an enlarged view of the same main part, and FIG. 4 is a third embodiment, (a) is a cross-sectional explanatory diagram, and (b) is the same main part. (C) is a slanted diagram of the same thermal conductivity changing ring, FIG. FIG. 3 is a perspective view of the thermal conductivity changing ring. 5... Vulcanized material, 6... Heat generating part, a... Portion with different thermal conductivity. Agent Patent Attorney Shin Ogawa - Patent Attorney Masaru Noguchi Patent Attorney Kazuhiko Saishita C166 Figure (1)) Figure (b) Figure 3 (b)

Claims (1)

【特許請求の範囲】[Claims] 発熱部から附与される熱によって金型内の被加硫物を加
硫するようにした加硫装置において、被加硫物の肉厚に
対応せしめて、発熱部と被加硫物との間に、熱伝導率の
異なる部分外配置したことを特徴とする加硫装置。
In a vulcanizing device that vulcanizes a material to be vulcanized in a mold using heat imparted from a heat generating part, the distance between the heat generating part and the material to be vulcanized is adjusted according to the wall thickness of the material to be vulcanized. A vulcanizing device characterized in that parts having different thermal conductivities are arranged outside in between.
JP14543981A 1981-09-17 1981-09-17 Vulcanizer Pending JPS5849232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14543981A JPS5849232A (en) 1981-09-17 1981-09-17 Vulcanizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14543981A JPS5849232A (en) 1981-09-17 1981-09-17 Vulcanizer

Publications (1)

Publication Number Publication Date
JPS5849232A true JPS5849232A (en) 1983-03-23

Family

ID=15385263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14543981A Pending JPS5849232A (en) 1981-09-17 1981-09-17 Vulcanizer

Country Status (1)

Country Link
JP (1) JPS5849232A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568259A (en) * 1985-08-02 1986-02-04 The B. F. Goodrich Company Tire mold
JPH01153914U (en) * 1988-03-29 1989-10-24
WO2011136097A1 (en) * 2010-04-26 2011-11-03 株式会社ブリヂストン Tire vulcanization device
JPWO2011077844A1 (en) * 2009-12-24 2013-05-02 不二商事株式会社 Tire vulcanizer
EP2724849A1 (en) * 2012-10-26 2014-04-30 The Goodyear Tire & Rubber Company Tire mold
WO2019225215A1 (en) * 2018-05-23 2019-11-28 株式会社ブリヂストン Tire vulcanizing molding device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5338174A (en) * 1976-09-20 1978-04-07 Shin Meiwa Ind Co Ltd Container
JPS5514286A (en) * 1978-07-18 1980-01-31 Sumitomo Rubber Ind Ltd Sulfurizing metallic mold for recovery tire

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5338174A (en) * 1976-09-20 1978-04-07 Shin Meiwa Ind Co Ltd Container
JPS5514286A (en) * 1978-07-18 1980-01-31 Sumitomo Rubber Ind Ltd Sulfurizing metallic mold for recovery tire

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568259A (en) * 1985-08-02 1986-02-04 The B. F. Goodrich Company Tire mold
JPS6233610A (en) * 1985-08-02 1987-02-13 ユニローヤル グッドリッチ ライセンシング サービシス,インコーポレイティド Molding die for tire
JPH01153914U (en) * 1988-03-29 1989-10-24
JPWO2011077844A1 (en) * 2009-12-24 2013-05-02 不二商事株式会社 Tire vulcanizer
JP5705132B2 (en) * 2009-12-24 2015-04-22 不二商事株式会社 Tire vulcanizer
WO2011136097A1 (en) * 2010-04-26 2011-11-03 株式会社ブリヂストン Tire vulcanization device
EP2724849A1 (en) * 2012-10-26 2014-04-30 The Goodyear Tire & Rubber Company Tire mold
WO2019225215A1 (en) * 2018-05-23 2019-11-28 株式会社ブリヂストン Tire vulcanizing molding device
JP2019202460A (en) * 2018-05-23 2019-11-28 株式会社ブリヂストン Tire vulcanization molding equipment

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