JP2009083253A - Method and device of applying mold release liquid to bladder for tire vulcanization - Google Patents

Method and device of applying mold release liquid to bladder for tire vulcanization Download PDF

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JP2009083253A
JP2009083253A JP2007255356A JP2007255356A JP2009083253A JP 2009083253 A JP2009083253 A JP 2009083253A JP 2007255356 A JP2007255356 A JP 2007255356A JP 2007255356 A JP2007255356 A JP 2007255356A JP 2009083253 A JP2009083253 A JP 2009083253A
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release liquid
mold
bladder
transfer mold
tire
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JP4962247B2 (en
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Kazuo Miyasaka
和夫 宮坂
Hiroshi Takizawa
滝沢　　浩
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Yokohama Rubber Co Ltd
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Yokohama Rubber Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a device of applying a mold release liquid to a bladder for tire vulcanization capable of shortening an applying time by causing no problem of scattering of the mold release liquid. <P>SOLUTION: The method of applying the mold release liquid to the bladder for the tire vulcanization comprises the step for attaching the mold release liquid on the inner surface 1a of a cylindrical transfer mold 1, the step for inserting the bladder 8 for tire vulcanization into the transfer mold 1, and the step for transferring the mold release liquid where the inserted bladder 8 for the tire vulcanization is inflated to attach to the inner surface 1a of the transfer mold 1 onto the outer surface 8a of the bladder 8 for the tire vulcanization. The applying device has the cylindrical transfer mold 1 for transferring the mold release liquid on the outer surface 8a of the bladder 8 for the tire vulcanization, an attaching means 3 for attaching the mold release liquid on the inner surface 1a of the transfer mold 1, and a moving means 4 for moving the transfer mold 1 to the bladder 8 for the tire vulcanization of a tire vulcanizer. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、タイヤ加硫用ブラダーに離型液を塗布する方法及び装置に関し、更に詳しくは、離型液の飛散の問題を招くことなく、離型液の塗布時間を短縮することができるタイヤ加硫用ブラダーへの離型液塗布方法及び装置に関する。   The present invention relates to a method and an apparatus for applying a mold release liquid to a tire vulcanization bladder, and more specifically, a tire capable of shortening the application time of the mold release liquid without causing a problem of the release liquid scattering. The present invention relates to a release liquid coating method and apparatus for a vulcanization bladder.

タイヤ加硫工程では、加硫後のタイヤとブラダーとの離型性を良くするため、ブラダーと生タイヤとの接触面に離型液を塗布している。この離型液を塗布する方法として、スプレーによりタイヤ内面に塗布することが一般的に行われている。しかし、このスプレー塗布は、離型液が大気中に飛散する結果、周囲の汚れの問題が発生し、更に飛散する分だけ離型液の使用量が増加し、コストの点からも改善が求められていた。   In the tire vulcanization process, a mold release liquid is applied to the contact surface between the bladder and the green tire in order to improve the mold releasability between the vulcanized tire and the bladder. As a method of applying the release liquid, it is generally performed to apply to the tire inner surface by spraying. However, this spray coating causes a problem of surrounding dirt as a result of the release liquid splashing into the atmosphere, and the amount of release liquid used is increased by the amount of splashing, and improvement is also required in terms of cost. It was done.

そこで、従来、上記対策として、ブラダーの外表面に刷毛で離型液を塗布するようにした方法と装置が提案されている（例えば、特許文献１参照）。スプレー塗布に代えて、刷毛で離型液を塗布することにより離型液の飛散を効果的に防ぐことができる利点がある。しかしながら、離型液をブラダーの外表面に均一に塗布するためには時間がかかり、改善の余地が残されていた。
特開２００４−３０６２７３号公報 Therefore, conventionally, as a countermeasure, there has been proposed a method and an apparatus in which a release liquid is applied to the outer surface of the bladder with a brush (see, for example, Patent Document 1). There is an advantage that scattering of the release liquid can be effectively prevented by applying the release liquid with a brush instead of spray application. However, it takes time to uniformly apply the release liquid to the outer surface of the bladder, leaving room for improvement.
JP 2004-306273 A

本発明の第１の目的は、離型液の飛散の問題を生じることなく、塗布時間を短縮することが可能なタイヤ加硫用ブラダーへの離型液塗布方法及び装置を提供することにある。   A first object of the present invention is to provide a method and an apparatus for applying a release liquid to a tire vulcanization bladder that can reduce the application time without causing the problem of splashing of the release liquid. .

本発明の第２の目的は、離型液を均一的に塗布することが可能なタイヤ加硫用ブラダーへの離型液塗布方法及び装置を提供することにある。   A second object of the present invention is to provide a method and apparatus for applying a mold release liquid to a tire vulcanization bladder capable of uniformly applying the mold release liquid.

本願の請求項１に記載の発明に係るタイヤ加硫用ブラダーへの離型液塗布方法は、筒状の転写型の内面に離型液を付着させる工程と、該転写型内にタイヤ加硫用ブラダーを挿入する工程と、該タイヤ加硫用ブラダーを膨張させて転写型の内面に付着する離型液を膨張させたタイヤ加硫用ブラダーの外表面に転写する工程とからなることを特徴とする。   According to the first aspect of the present invention, there is provided a method of applying a release liquid to a tire vulcanization bladder, the step of attaching a release liquid to the inner surface of a cylindrical transfer mold, and the tire vulcanization in the transfer mold. And a step of transferring the tire vulcanization bladder to the outer surface of the expanded tire vulcanization bladder by inflating the mold release liquid adhering to the inner surface of the transfer mold. And

本願の請求項２に記載の発明に係るタイヤ加硫用ブラダーへの離型液塗布方法は、請求項１に記載のタイヤ加硫用ブラダーへの離型液塗布方法において、前記転写する工程は、前記転写型及び／又はタイヤ加硫用ブラダーを加熱しながら転写することを特徴とする。   The method for applying the mold release liquid to the tire vulcanization bladder according to the second aspect of the present invention is the method for applying the mold release liquid to the tire vulcanization bladder according to the first aspect, wherein the transferring step is as follows. The transfer mold and / or the tire vulcanization bladder is transferred while heating.

本願の請求項３に記載の発明に係るタイヤ加硫用ブラダーへの離型液塗布方法は、請求項１または２に記載のタイヤ加硫用ブラダーへの離型液塗布方法において、前記転写型は、転写型の内面から外面に貫通するベントホールを所定の間隔で配列してなることを特徴とする。   The method for applying a mold release liquid to the tire vulcanization bladder according to the third aspect of the present invention is the method for applying the mold release liquid to the tire vulcanization bladder according to the first or second aspect, wherein the transfer mold is used. Is characterized in that vent holes penetrating from the inner surface to the outer surface of the transfer mold are arranged at predetermined intervals.

本願の請求項４に記載の発明に係るタイヤ加硫用ブラダーへの離型液塗布方法は、請求項１，２または３に記載のタイヤ加硫用ブラダーへの離型液塗布方法において、前記転写型は、内面に格子状の溝または突起を有することを特徴とする。   The method for applying a mold release liquid to the tire vulcanization bladder according to the invention described in claim 4 of the present application is the method for applying the mold release liquid to the tire vulcanization bladder according to claim 1, 2 or 3, wherein The transfer mold has a grid-like groove or protrusion on the inner surface.

本願の請求項５に記載の発明に係るタイヤ加硫用ブラダーへの離型液塗布装置は、タイヤ加硫用ブラダーの外表面に離型液を転写するための筒状の転写型と、該転写型の内面に離型液を付着させる付着手段と、前記転写型をタイヤ加硫機のタイヤ加硫用ブラダーまで移動させる移動手段とを具備することを特徴とする。   A release liquid coating apparatus for a tire vulcanization bladder according to claim 5 of the present application includes a cylindrical transfer mold for transferring a release liquid onto the outer surface of a tire vulcanization bladder, An attaching means for attaching a release liquid to the inner surface of the transfer mold and a moving means for moving the transfer mold to a tire vulcanizing bladder of a tire vulcanizer are provided.

本願の請求項６に記載の発明に係るタイヤ加硫用ブラダーへの離型液塗布装置は、タイヤ加硫用ブラダーの外表面に離型液を転写するための筒状の転写型と、該転写型の内面に離型液を付着させる付着手段と、前記タイヤ加硫用ブラダーを保持する保持手段と、該保持手段で保持したタイヤ加硫用ブラダーを前記転写型内に移動させる移動手段と、該転写型内で前記タイヤ加硫用ブラダーを膨張させる膨張手段とを具備することを特徴とする。   According to a sixth aspect of the present invention, there is provided a release liquid coating apparatus for a tire vulcanization bladder, a cylindrical transfer mold for transferring a release liquid onto an outer surface of a tire vulcanization bladder, Attachment means for attaching a release liquid to the inner surface of the transfer mold, holding means for holding the tire vulcanizing bladder, and moving means for moving the tire vulcanization bladder held by the holding means into the transfer mold And an expansion means for expanding the bladder for tire vulcanization in the transfer mold.

本願の請求項７に記載の発明に係るタイヤ加硫用ブラダーへの離型液塗布装置は、請求項５または６に記載のタイヤ加硫用ブラダーへの離型液塗布装置において、前記転写型の外側に該転写型及び／又はタイヤ加硫用ブラダーを加熱する加熱手段を配置したことを特徴とする。   A release liquid coating apparatus for a tire vulcanization bladder according to an invention described in claim 7 of the present application is the release liquid application apparatus for a tire vulcanization bladder according to claim 5 or 6, wherein the transfer mold is used. A heating means for heating the transfer mold and / or the tire vulcanizing bladder is disposed outside the rim.

本願の請求項８に記載の発明に係るタイヤ加硫用ブラダーへの離型液塗布装置は、請求項５，６または７に記載のタイヤ加硫用ブラダーへの離型液塗布装置において、前記転写型は、転写型の内面から外面まで貫通するベントホールを所定の間隔で配列してなることを特徴とする。   The mold release liquid application apparatus to the tire vulcanization bladder according to the invention described in claim 8 of the present application is the mold release liquid application apparatus to the tire vulcanization bladder according to claim 5, 6 or 7, The transfer mold is characterized in that vent holes penetrating from the inner surface to the outer surface of the transfer mold are arranged at a predetermined interval.

本願の請求項９に記載の発明に係るタイヤ加硫用ブラダーへの離型液塗布装置は、請求項５乃至８のいずれか１項に記載のタイヤ加硫用ブラダーへの離型液塗布装置において、前記転写型は、内面に格子状の溝または突起を有することを特徴とする。   The mold release liquid coating apparatus for the tire vulcanization bladder according to the invention described in claim 9 is the mold release liquid coating apparatus for the tire vulcanization bladder according to any one of claims 5 to 8. The transfer mold has a grid-like groove or protrusion on the inner surface.

上述した本願の請求項１，５，６の発明によれば、スプレーを使用せずに転写型を用いて離型液をタイヤ加硫用ブラダーの外表面に塗布するので、離型液が大気中に飛散することがない。しかも、転写型の内面に付着させた離型液を転写させるだけでよいので、従来より短い時間で離型液を塗布することが可能になる。   According to the first, fifth, and sixth aspects of the present invention described above, the release liquid is applied to the outer surface of the tire vulcanizing bladder using a transfer mold without using a spray. There is no scattering inside. In addition, since it is only necessary to transfer the mold release liquid adhered to the inner surface of the transfer mold, it becomes possible to apply the mold release liquid in a shorter time than before.

また、本願の請求項２，７によれば、離型液の転写時に転写型及び／又はタイヤ加硫用ブラダーを加熱することで、転写型の内面と膨張したタイヤ加硫用ブラダーの外表面とが円滑な接触をし易くなるため、タイヤ加硫用ブラダー外表面への転写時の離型液の塗布量のバラツキを改善し、離型液を均一的に塗布することができる。   Further, according to claims 2 and 7 of the present application, the transfer mold and / or the tire vulcanization bladder is heated during the transfer of the release liquid, so that the inner surface of the transfer mold and the outer surface of the tire vulcanization bladder expanded. Therefore, it is possible to improve the variation in the amount of the release liquid applied during transfer onto the outer surface of the tire vulcanization bladder, and to apply the release liquid uniformly.

また、本願の請求項３，８によれば、転写型の内面と膨張させたタイヤ加硫用ブラダーの外表面との間のエア、及び転写型の内面に付着した過剰な離型液を、転写型の内面に当接したタイヤ加硫用ブラダーにより押し出してベントホールから外部に排出できるので、タイヤ加硫用ブラダーの外表面への離型液の転写による塗布を均一的にすることができ、本願の請求項２，７の構成と組み合わせることにより、離型液の転写による塗布を一層均一的にすることができる。   According to claims 3 and 8 of the present application, the air between the inner surface of the transfer mold and the outer surface of the inflated tire vulcanizing bladder, and the excess release liquid adhering to the inner surface of the transfer mold, Since it can be pushed out by the tire vulcanization bladder in contact with the inner surface of the transfer mold and discharged from the vent hole, it can be uniformly applied by transferring the release liquid onto the outer surface of the tire vulcanization bladder. By combining with the constructions of claims 2 and 7 of the present application, it is possible to make the coating by the release liquid transfer more uniform.

また、本願の請求項４，９によれば、格子状の溝内に所定量の離型液を確実に付着させることができるので、離型液を転写型内面に偏ることなく分散して付着させることができ、離型液の転写による塗布を均一的にすることができ、本願の請求項２，３，７，８の構成と組み合わせることにより、離型液の転写による塗布をより一層均一的にすることができる。   According to claims 4 and 9 of the present application, since a predetermined amount of the release liquid can be reliably attached in the lattice-like grooves, the release liquid is dispersed and attached to the inner surface of the transfer mold without being biased. Application by transfer of the mold release liquid can be made uniform, and by combining with the structure of claims 2, 3, 7 and 8 of the present application, application by transfer of the mold release liquid is made even more uniform. Can be done.

以下、本発明の実施の形態について添付の図面を参照しながら詳細に説明する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

図１，２は、本発明のタイヤ加硫用ブラダーへの離型液塗布方法に使用される塗布装置の一例を示し、この塗布装置は、タイヤ加硫用ブラダーの外表面に離型液を転写するための筒状の転写型１、この転写型１を保持する保持手段２、転写型１の内面１ａに離型液を付着させるための付着手段３、転写型１をタイヤ加硫機のタイヤ加硫用ブラダーまで移動させる移動手段４、転写型１を加熱するための加熱手段５を備えている。   1 and 2 show an example of a coating apparatus used in a method for applying a mold release liquid to a tire vulcanization bladder according to the present invention. This coating apparatus applies a mold release liquid to the outer surface of a tire vulcanization bladder. A cylindrical transfer mold 1 for transferring, a holding means 2 for holding the transfer mold 1, an attaching means 3 for attaching a release liquid to the inner surface 1a of the transfer mold 1, and the transfer mold 1 of a tire vulcanizer. A moving means 4 for moving to a tire vulcanizing bladder and a heating means 5 for heating the transfer mold 1 are provided.

筒状の転写型１は、ゴムや樹脂などから構成され、タイヤ加硫用ブラダーよりひとまわり大きい構造でタイヤ加硫用ブラダーが転写型１内に挿入可能になっている。図３に示すように、転写型１の内面１ａから外面１ｂまで貫通する多数のベントホール６が所定の間隔で少なくともタイヤ加硫用ブラダーが接触する領域１Ｘ全体にわたって配列してある。このようにベントホール６を配置することにより、内面１ａと膨張させたタイヤ加硫用ブラダーの外表面との間のエア、及び内面１ａに付着した過剰な離型液をベントホール６から外部に排出できるようにしている。なお、ここで言う筒状の転写型１は、図１に示すように中央部の外径を上下の端部より大きくした樽状の転写型や、生タイヤと同じ形状（トロイダル状）の転写型、更に径を略同じにした筒型の転写型を含む。   The cylindrical transfer mold 1 is made of rubber or resin, and the tire vulcanization bladder can be inserted into the transfer mold 1 with a structure that is slightly larger than the tire vulcanization bladder. As shown in FIG. 3, a large number of vent holes 6 penetrating from the inner surface 1a to the outer surface 1b of the transfer die 1 are arranged at predetermined intervals over at least the entire region 1X where the tire vulcanizing bladder contacts. By arranging the vent hole 6 in this manner, air between the inner surface 1a and the outer surface of the inflated tire vulcanizing bladder and excess release liquid adhering to the inner surface 1a are discharged from the vent hole 6 to the outside. It can be discharged. The cylindrical transfer mold 1 referred to here is a barrel-shaped transfer mold in which the outer diameter of the central portion is larger than the upper and lower ends as shown in FIG. 1, or a transfer having the same shape as a raw tire (toroidal shape). Includes a mold and a cylindrical transfer mold having substantially the same diameter.

保持手段２は、図２に示すように、転写型１を保持するための複数（図では４つ）のシリンダー２Ａを備えている。４つのシリンダー２Ａは、保持位置にある転写型１の周囲に９０°間隔で配置され、不図示の駆動源により駆動されるシリンダー２Ａのロッド２ａの先端に固定した保持パッド２Ｂにより転写型１を保持するようになっている。   As shown in FIG. 2, the holding unit 2 includes a plurality of (four in the drawing) cylinders 2 </ b> A for holding the transfer mold 1. The four cylinders 2A are arranged at 90 ° intervals around the transfer mold 1 in the holding position, and the transfer mold 1 is fixed by a holding pad 2B fixed to the tip of the rod 2a of the cylinder 2A driven by a drive source (not shown). It comes to hold.

付着手段３は、転写型１に離型液を塗布する塗布部３Ａとこの塗布部３Ａに離型液を供給する供給部３Ｂとから構成されている。塗布部３Ａは、転写型１の保持位置の下方に設置されており、ベースＢに回転自在に立設された回転軸３Ａ１と、この回転軸３Ａ１の上端に固定した支持盤３Ａ２上に設けた昇降用シリンダー３Ａ３を有している。不図示の駆動源により駆動される昇降用シリンダー３Ａ３の上方に延びるロッド３Ａ４の上端には、遠心力を利用して離型液を飛散塗布するための回転円板３Ａ５が配設されている。この回転円板３Ａ５は、転写型１の下端の開口の径より小さく、転写型１内に挿入可能になっている。回転軸３Ａ１は、ベースＢに設置したモータ３Ａ６により回転駆動される。   The adhering means 3 includes an application part 3A for applying a release liquid to the transfer mold 1 and a supply part 3B for supplying the release liquid to the application part 3A. The application unit 3A is installed below the holding position of the transfer mold 1, and is provided on a rotating shaft 3A1 that is erected on the base B so as to be freely rotatable, and a support plate 3A2 that is fixed to the upper end of the rotating shaft 3A1. It has a lifting cylinder 3A3. At the upper end of the rod 3A4 extending above the elevating cylinder 3A3 driven by a drive source (not shown), a rotating disk 3A5 is provided for scattering and applying the release liquid using centrifugal force. The rotating disk 3A5 is smaller than the diameter of the opening at the lower end of the transfer mold 1 and can be inserted into the transfer mold 1. The rotary shaft 3A1 is rotationally driven by a motor 3A6 installed on the base B.

供給部３Ｂは、回転円板３Ａ５に離型液を供給する供給ヘッド部３Ｂ１と、この供給ヘッド部３Ｂ１を支持する支持部３Ｂ２とから構成されている。供給ヘッド部３Ｂ１は不図示の離型液供給源に接続され、下端の供給口ｘから離型液を回転円板３Ａ５上に供給するようになっている。支持部３Ｂ２は、上下に延在する回動軸ＶＡを中心に回動可能に支持された回動部材３Ｂ３を有している。この回動部材３Ｂ３から水平方向に延在する支持プレート３Ｂ４上に不図示の駆動源により駆動される昇降用シリンダー３Ｂ５が設置され、この昇降用シリンダー３Ｂ５の下方に延びるロッド３Ｂ６の下端に供給ヘッド部３Ｂ１が固設されている。   The supply unit 3B includes a supply head unit 3B1 that supplies a release liquid to the rotating disk 3A5, and a support unit 3B2 that supports the supply head unit 3B1. The supply head unit 3B1 is connected to a release liquid supply source (not shown), and supplies the release liquid from the lower supply port x onto the rotating disk 3A5. The support portion 3B2 includes a rotation member 3B3 supported so as to be rotatable about a rotation axis VA extending vertically. An elevating cylinder 3B5 driven by a drive source (not shown) is installed on a support plate 3B4 extending in the horizontal direction from the rotating member 3B3, and a supply head is provided at the lower end of a rod 3B6 extending below the elevating cylinder 3B5. Part 3B1 is fixed.

移動手段４は、転写型１の上端部に形成した把持部１ｃを把持する複数の把持部材４Ａを有し、この把持部材４Ａにより転写型１を把持し、加硫工程に設置されたタイヤ加硫機のタイヤ加硫用ブラダーまで移動するようになっている。この移動手段４には、生タイヤをタイヤ加硫機に搬送する手段（バーチカルローダ）を使用してもよい。   The moving means 4 has a plurality of gripping members 4A for gripping a gripping portion 1c formed on the upper end portion of the transfer mold 1, and grips the transfer mold 1 with the gripping members 4A, and adds tires installed in the vulcanization process. It moves to the tire vulcanizer bladder. As the moving means 4, means (vertical loader) for conveying the raw tire to the tire vulcanizer may be used.

加熱手段５は、図１に示すように複数の遠赤外線ヒータ５Ａを備えている。遠赤外線ヒータ５Ａは、転写型１の外側に所定の間隔（図では２個で転写型１の周方向に１８０°間隔）で配置され、転写型１から延設される不図示の支持部材に支持され、転写型１と共に移動可能になっている。   As shown in FIG. 1, the heating means 5 includes a plurality of far infrared heaters 5A. The far-infrared heater 5A is disposed outside the transfer mold 1 at a predetermined interval (two in the figure at an interval of 180 ° in the circumferential direction of the transfer mold 1), and is attached to a support member (not shown) extending from the transfer mold 1. It is supported and movable together with the transfer mold 1.

以下、上述した塗布装置を用いて、本発明のタイヤ加硫用ブラダーへの離型液塗布方法を説明する。   Hereinafter, the release liquid application method to the tire vulcanization bladder of the present invention will be described using the above-described coating apparatus.

先ず、図１，２に示すように、転写型１を保持位置に保持手段２により保持した状態にする。この状態で付着手段３の昇降用シリンダー３Ａ３が作動し、ロッド３Ａ４が上方に伸長して回転円板３Ａ５を転写型１内の下方位置に挿入する。モータ３Ａ６が作動し、回転軸３Ａ１が一定の速度で回転する一方、回転円板３Ａ５の上方近傍に位置する供給ヘッド部３Ｂ１の供給口ｘから離型液が回転円板３Ａ５上に供給される。回転円板３Ａ５上に供給された離型液は、回転する回転円板３Ａ５の遠心力により図４に矢印で示すように外側に飛散し、転写型１の内面１ａに付着する。   First, as shown in FIGS. 1 and 2, the transfer mold 1 is held in the holding position by the holding means 2. In this state, the elevating cylinder 3A3 of the attaching means 3 operates, the rod 3A4 extends upward, and the rotating disk 3A5 is inserted into the lower position in the transfer mold 1. The motor 3A6 operates and the rotating shaft 3A1 rotates at a constant speed, while the release liquid is supplied onto the rotating disk 3A5 from the supply port x of the supply head part 3B1 located near the upper part of the rotating disk 3A5. . The release liquid supplied onto the rotating disk 3A5 is scattered to the outside as indicated by an arrow in FIG. 4 due to the centrifugal force of the rotating rotating disk 3A5 and adheres to the inner surface 1a of the transfer mold 1.

ロッド３Ｂ６が徐々に伸縮して供給ヘッド部３Ｂ１を上方に移動させる一方、ロッド３Ａ４が上方に徐々に伸長して回転円板３Ａ５を上方に移動させながら、転写型１の内面１ａ全体に離型液を付着させる。   The rod 3B6 gradually expands and contracts to move the supply head portion 3B1 upward, while the rod 3A4 gradually extends upward to move the rotary disk 3A5 upward, while releasing the entire inner surface 1a of the transfer mold 1 Allow liquid to adhere.

転写型１の内面１ａに離型液を付着させる工程が終了すると、ロッド３Ａ４が伸縮して回転円板３Ａ５を降下させ、転写型１内から下方に退避させる一方、ロッド３Ｂ６が更に伸縮して供給ヘッド部３Ｂ１を上昇させ、転写型１内から上方に退避させる。供給ヘッド部３Ｂ１が転写型１の上方位置に達すると、回動部材３Ｂ３が一方向に１８０°回転し、供給ヘッド部３Ｂ１を転写型１から離れた待機位置に移動させる。   When the step of attaching the release liquid to the inner surface 1a of the transfer mold 1 is completed, the rod 3A4 expands and contracts to lower the rotating disk 3A5 and retracts downward from the transfer mold 1, while the rod 3B6 further expands and contracts. The supply head unit 3B1 is raised and retracted upward from the transfer mold 1. When the supply head unit 3B1 reaches the upper position of the transfer mold 1, the rotating member 3B3 rotates 180 ° in one direction, and moves the supply head unit 3B1 to a standby position away from the transfer mold 1.

供給ヘッド部３Ｂ１が待機位置に移動すると、移動手段４の把持部材４Ａが降下し、転写型１の上端部を把持する。把持が完了すると、保持手段２のシリンダー２Ａのロッド２Ａ１が後退し、保持パッド２Ｂによる転写型１の保持を解除する。解除が完了すると、移動手段４により転写型１をタイヤ加硫機ＴＫのタイヤ加硫用ブラダー８まで移動し、図５に示すように、転写型１内にタイヤ加硫用ブラダー８を挿入させた状態とする。   When the supply head unit 3B1 moves to the standby position, the gripping member 4A of the moving unit 4 descends and grips the upper end of the transfer die 1. When gripping is completed, the rod 2A1 of the cylinder 2A of the holding means 2 moves backward, and the holding of the transfer mold 1 by the holding pad 2B is released. When the release is completed, the transfer means 1 is moved to the tire vulcanizing bladder 8 of the tire vulcanizer TK by the moving means 4, and the tire vulcanizing bladder 8 is inserted into the transfer mold 1 as shown in FIG. State.

挿入後、加熱手段５の遠赤外線ヒータ５Ａをオンにして転写型１を加熱する。これにより転写型１の内面１ａと膨張するタイヤ加硫用ブラダー８の外表面８ａとが円滑に接触し、離型液の均一的な転写を助長する。   After the insertion, the far infrared heater 5A of the heating means 5 is turned on to heat the transfer mold 1. As a result, the inner surface 1a of the transfer mold 1 and the outer surface 8a of the expanding tire vulcanizing bladder 8 are in smooth contact with each other, facilitating uniform transfer of the mold release liquid.

次いで、図６に示すように、タイヤ加硫用ブラダー８を膨張させて転写型１の内面１ａに接触させ、内面１ａに付着する離型液をタイヤ加硫用ブラダー８の外表面８ａに転写により塗布する。この際に、転写型１の内面１ａと膨張させたタイヤ加硫用ブラダー８の外表面８ａとの間のエア、及び転写型１の内面１ａに付着した過剰な離型液が、転写型１の内面１ａに当接したタイヤ加硫用ブラダー８により押し出され、ベントホール６から外部に排出される。タイヤ加硫用ブラダー８の膨張量を調整することにより、離型液の転写量を調整する。   Next, as shown in FIG. 6, the tire vulcanization bladder 8 is expanded and brought into contact with the inner surface 1 a of the transfer mold 1, and the release liquid adhering to the inner surface 1 a is transferred to the outer surface 8 a of the tire vulcanization bladder 8. Apply by. At this time, the air between the inner surface 1 a of the transfer mold 1 and the outer surface 8 a of the inflated tire vulcanizing bladder 8 and the excessive mold release liquid adhering to the inner surface 1 a of the transfer mold 1 are transferred to the transfer mold 1. It is pushed out by a tire vulcanizing bladder 8 that is in contact with the inner surface 1a of the tire and is discharged from the vent hole 6 to the outside. The transfer amount of the mold release liquid is adjusted by adjusting the expansion amount of the tire vulcanizing bladder 8.

上述した本発明によれば、スプレーを使用せずに転写型１を用いて離型液をタイヤ加硫用ブラダー８の外表面８ａに塗布するので、離型液が大気中に飛散するのを回避することができる。   According to the above-described present invention, the mold release liquid is applied to the outer surface 8a of the tire vulcanizing bladder 8 using the transfer mold 1 without using a spray, so that the mold release liquid is scattered in the atmosphere. It can be avoided.

しかも、転写型１の内面１ａに付着させた離型液を転写させるだけでよいので、塗布時間を短縮し、生産性を高めることができる。   In addition, since it is only necessary to transfer the mold release liquid adhered to the inner surface 1a of the transfer mold 1, the coating time can be shortened and the productivity can be increased.

また、離型液の転写時に加熱手段５により転写型１を加熱することにより、転写型１の内面１ａと膨張したタイヤ加硫用ブラダー８の外表面８ａとが円滑に接触し易くなるため、タイヤ加硫用ブラダー８の外表面８ａへの離型液の転写を均一的にすることができる。   Further, by heating the transfer mold 1 by the heating means 5 at the time of transferring the mold release liquid, the inner surface 1a of the transfer mold 1 and the outer surface 8a of the expanded tire vulcanizing bladder 8 are easily brought into contact with each other. Transfer of the mold release liquid to the outer surface 8a of the tire vulcanizing bladder 8 can be made uniform.

更に、転写型１の内面１ａと膨張させたタイヤ加硫用ブラダー８の外表面８ａとの間のエア、及び転写型１の内面１ａに付着した過剰な離型液を転写型１の内面１ａに当接したタイヤ加硫用ブラダー８によりベントホール６から外部に排出できるので、タイヤ加硫用ブラダー８の外表面８ａへの離型液の転写を一層均一的にすることができる。   Further, the air between the inner surface 1a of the transfer mold 1 and the outer surface 8a of the inflated tire vulcanizing bladder 8 and the excess release liquid adhering to the inner surface 1a of the transfer mold 1 are removed from the inner surface 1a of the transfer mold 1. Since the tire vulcanization bladder 8 in contact with the tire can be discharged from the vent hole 6 to the outside, the transfer of the mold release liquid to the outer surface 8a of the tire vulcanization bladder 8 can be made more uniform.

図７は、本発明のタイヤ加硫用ブラダーへの離型液塗布方法に使用される塗布装置の他の例を示す。この塗布装置は、上述した転写型１と付着手段３及び加熱手段５に加えて、タイヤ加硫用ブラダー８を保持する保持手段１１と、この保持手段１１で保持したタイヤ加硫用ブラダー８を転写型１内に移動させる移動手段１２と、転写型１内でタイヤ加硫用ブラダー８を膨張させる膨張手段１３を有している。シリンダー２Ａを有する保持手段２と把持部材４Ａを有する移動手段４は備えていない。転写型１、付着手段３及び加熱手段５は、一部を除いて上記と同じ構成であるため、同じ構成要素には同じ符号を付し、重複する説明は省略する。   FIG. 7 shows another example of a coating apparatus used in the mold release liquid coating method for the tire vulcanizing bladder of the present invention. In addition to the transfer mold 1, the adhering means 3 and the heating means 5, this coating apparatus includes a holding means 11 for holding a tire vulcanizing bladder 8 and a tire vulcanizing bladder 8 held by the holding means 11. It has moving means 12 for moving into the transfer mold 1 and expansion means 13 for expanding the tire vulcanizing bladder 8 in the transfer mold 1. The holding means 2 having the cylinder 2A and the moving means 4 having the gripping member 4A are not provided. Since the transfer mold 1, the adhering means 3 and the heating means 5 have the same configuration as described above except for a part thereof, the same components are denoted by the same reference numerals, and redundant description is omitted.

タイヤ加硫用ブラダー８はタイヤ加硫機から取り外したものであり、保持手段１１はタイヤ加硫用ブラダー８の上端部と下端部を把持する上下の把持部１１ａ，１１ｂを有している。この把持部１１ａ，１１ｂの構成は、タイヤ加硫機におけるタイヤ加硫用ブラダー８の把持部と同じ構成である。   The tire vulcanizing bladder 8 is removed from the tire vulcanizer, and the holding means 11 has upper and lower gripping portions 11 a and 11 b that grip the upper end portion and the lower end portion of the tire vulcanizing bladder 8. The configuration of the gripping portions 11a and 11b is the same as that of the gripping portion of the tire vulcanizing bladder 8 in the tire vulcanizer.

移動手段１２は、保持手段１１を昇降するための昇降用シリンダー１２Ａを有し、この昇降用シリンダー１２Ａの上方に延びるロッド１２Ａ１の上端に保持手段１１が取り付けられている。不図示の駆動源により駆動される昇降用シリンダー１２Ａの作動により、保持手段１１に保持されたタイヤ加硫用ブラダー８が転写型１内の転写位置と転写型１外の待機位置との間を上下移動可能にしている。   The moving means 12 has an elevating cylinder 12A for elevating the holding means 11, and the holding means 11 is attached to the upper end of a rod 12A1 extending above the elevating cylinder 12A. The tire vulcanizing bladder 8 held by the holding means 11 is moved between the transfer position in the transfer mold 1 and the standby position outside the transfer mold 1 by the operation of the lifting cylinder 12A driven by a drive source (not shown). It can be moved up and down.

膨張手段１３は、保持手段１１に保持されたタイヤ加硫用ブラダー８内にエアなどの気体や水などの液体からなる流体を供給するための供給源１３Ａを備えている。供給源１３Ａはポンプ１３Ｂ、配管路１３Ｃを介してタイヤ加硫用ブラダー８の内部に接続されている。膨張手段１３の作動により流体をタイヤ加硫用ブラダー８内に供給し、それによりタイヤ加硫用ブラダー８を膨張させて、転写型１の内面１ａにタイヤ加硫用ブラダー８の外表面８ａを接触可能にしている。   The expansion means 13 includes a supply source 13 </ b> A for supplying a fluid made of a gas such as air or a liquid such as water into the tire vulcanizing bladder 8 held by the holding means 11. The supply source 13A is connected to the inside of the tire vulcanizing bladder 8 via a pump 13B and a pipe line 13C. The fluid is supplied into the tire vulcanizing bladder 8 by the operation of the expansion means 13, whereby the tire vulcanizing bladder 8 is expanded, and the outer surface 8 a of the tire vulcanizing bladder 8 is applied to the inner surface 1 a of the transfer mold 1. It is possible to contact.

転写型１は、不図示の支持部材により支持され、所定の位置に固定されている。加熱手段５の遠赤外線ヒータ５Ａは、その支持部材から延設した不図示のブラケットに固定されている。移動手段１２、膨張手段１３及び付着手段３の塗布部３Ａは、ベースＢ上に移動可能に設置した移動体１６上に設けられている。付着手段３の供給部３Ｂは、回動部材３Ｂ３に代えて、支持プレート３Ｂ４を保持する保持部材３ＢＸを有している。   The transfer mold 1 is supported by a support member (not shown) and fixed at a predetermined position. The far-infrared heater 5A of the heating means 5 is fixed to a bracket (not shown) extending from the support member. The application unit 3A of the moving unit 12, the expanding unit 13, and the attaching unit 3 is provided on a moving body 16 that is movably installed on the base B. The supply unit 3B of the attaching unit 3 includes a holding member 3BX that holds the support plate 3B4 in place of the rotating member 3B3.

以下、上述した図７の塗布装置を用いて、本発明のタイヤ加硫用ブラダーへの離型液塗布方法を説明する。   Hereinafter, the mold release liquid application method to the tire vulcanization bladder of the present invention will be described using the above-described coating apparatus of FIG.

先ず、付着手段３の昇降用シリンダー３Ａ３が作動し、ロッド３Ａ４が上方に伸長して回転円板３Ａ５を転写型１内の下方位置に挿入する。モータ３Ａ６が作動し、回転軸３Ａ１が一定の速度で回転する一方、回転円板３Ａ５の上方近傍に位置する供給ヘッド部３Ｂ１の供給口ｘから離型液が回転円板３Ａ５上に供給される。回転円板３Ａ５上に供給された離型液は、回転する回転円板３Ａ５の遠心力により外側に飛散し、転写型１の内面１ａに付着する。   First, the elevating cylinder 3A3 of the attaching means 3 is operated, the rod 3A4 extends upward, and the rotating disk 3A5 is inserted into the lower position in the transfer mold 1. The motor 3A6 operates and the rotating shaft 3A1 rotates at a constant speed, while the release liquid is supplied onto the rotating disk 3A5 from the supply port x of the supply head part 3B1 located near the upper part of the rotating disk 3A5. . The release liquid supplied onto the rotating disk 3A5 is scattered outside by the centrifugal force of the rotating rotating disk 3A5 and adheres to the inner surface 1a of the transfer mold 1.

ロッド３Ｂ６が徐々に伸縮して供給ヘッド部３Ｂ１を上方に移動させる一方、ロッド３Ａ４が上方に徐々に伸長して回転円板３Ａ５を上方に移動させながら、転写型１の内面１ａ全体に離型液を付着させる。   The rod 3B6 gradually expands and contracts to move the supply head portion 3B1 upward, while the rod 3A4 gradually extends upward to move the rotary disk 3A5 upward, while releasing the entire inner surface 1a of the transfer mold 1 Allow liquid to adhere.

転写型１の内面１ａに離型液を付着させる工程が終了すると、ロッド３Ａ４が伸縮して回転円板３Ａ５を降下させ、転写型１内から下方に退避させる一方、ロッド３Ｂ６が更に伸縮して供給ヘッド部３Ｂ１を上昇させ、転写型１内から上方に退避させる。   When the step of attaching the release liquid to the inner surface 1a of the transfer mold 1 is completed, the rod 3A4 expands and contracts to lower the rotating disk 3A5 and retracts downward from the transfer mold 1, while the rod 3B6 further expands and contracts. The supply head unit 3B1 is raised and retracted upward from the transfer mold 1.

回転円板３Ａ５が下方に退避すると、移動体１６が矢印で示す方向に所定量移動し、保持手段１１に取り付けたタイヤ加硫用ブラダー８を転写型１の下方に位置させる。次いで、移動手段１２の昇降用シリンダー１２Ａが作動し、ロッド１２Ａ１が上方に伸長して、保持手段１１に保持されているタイヤ加硫用ブラダー８を転写型１内の所定の位置に挿入する。   When the rotating disk 3A5 is retracted downward, the moving body 16 moves by a predetermined amount in the direction indicated by the arrow, and the tire vulcanizing bladder 8 attached to the holding means 11 is positioned below the transfer die 1. Next, the elevating cylinder 12 </ b> A of the moving unit 12 is activated, the rod 12 </ b> A <b> 1 extends upward, and the tire vulcanizing bladder 8 held by the holding unit 11 is inserted into a predetermined position in the transfer mold 1.

挿入後、加熱手段５の遠赤外線ヒータ５Ａがオンになり転写型１を加熱する。これにより転写型１の内面１ａと膨張するタイヤ加硫用ブラダー８の外表面８ａとが円滑に接触し、離型液の均一的な転写を助長する。   After the insertion, the far infrared heater 5A of the heating means 5 is turned on to heat the transfer mold 1. As a result, the inner surface 1a of the transfer mold 1 and the outer surface 8a of the expanding tire vulcanizing bladder 8 are in smooth contact with each other, facilitating uniform transfer of the mold release liquid.

続いて、膨張手段１３の供給源１３Ａから流体をタイヤ加硫用ブラダー８内に供給し、タイヤ加硫用ブラダー８を膨張させて転写型１の内面１ａに接触させ、内面１ａに付着する離型液をタイヤ加硫用ブラダー８の外表面８ａに転写により塗布する。この際に、転写型１の内面１ａと膨張させたタイヤ加硫用ブラダー８の外表面８ａとの間のエア、及び転写型１の内面１ａに付着した過剰な離型液が、転写型１の内面１ａに当接したタイヤ加硫用ブラダー８により押し出され、ベントホール６から外部に排出される。タイヤ加硫用ブラダー８の膨張量を調整することにより、離型液の転写量を調整する。このように図７の塗布装置を用いても、上記と同様の効果を得ることができる。   Subsequently, the fluid is supplied from the supply source 13A of the expansion means 13 into the tire vulcanizing bladder 8, and the tire vulcanizing bladder 8 is inflated and brought into contact with the inner surface 1a of the transfer mold 1 to adhere to the inner surface 1a. The mold liquid is applied to the outer surface 8a of the tire vulcanizing bladder 8 by transfer. At this time, the air between the inner surface 1 a of the transfer mold 1 and the outer surface 8 a of the inflated tire vulcanizing bladder 8 and the excessive mold release liquid adhering to the inner surface 1 a of the transfer mold 1 are transferred to the transfer mold 1. It is pushed out by a tire vulcanizing bladder 8 that is in contact with the inner surface 1a of the tire and is discharged from the vent hole 6 to the outside. The transfer amount of the mold release liquid is adjusted by adjusting the expansion amount of the tire vulcanizing bladder 8. Thus, even if the coating apparatus of FIG. 7 is used, the same effect as described above can be obtained.

本発明において、転写型１の内面１ａは、図８に示すように、格子状の溝２０を少なくともタイヤ加硫用ブラダー８が接触する領域１Ｘ全体にわたって有する構成にするのが、離型液を内面１ａに偏ることなく分散して付着させることができるのでよい。溝２０の幅としては１ｍｍ程度、格子の間隔としては１０ｍｍ程度にすることができる。格子状の溝２０に代えて、格子状の微小な突起であってもよい。   In the present invention, as shown in FIG. 8, the inner surface 1a of the transfer mold 1 has a grid-like groove 20 over at least the entire region 1X where the tire vulcanizing bladder 8 contacts, so that the mold release liquid is used. It may be possible to disperse and adhere to the inner surface 1a without being biased. The width of the groove 20 can be about 1 mm, and the interval between the lattices can be about 10 mm. Instead of the lattice-shaped grooves 20, fine lattice-shaped protrusions may be used.

タイヤ加硫用ブラダー８はゴムのみからなるブラダーであっても、テキスタイルをゴム層に埋設した構造のブラダーであってもよい。テキスタイルを埋設したタイヤ加硫用ブラダーは、膨張時の変形量が小さいので、転写により離型液のより均一な塗布ができる。   The tire vulcanizing bladder 8 may be a bladder made only of rubber or a bladder having a structure in which a textile is embedded in a rubber layer. Since the tire vulcanizing bladder with embedded textiles has a small amount of deformation at the time of expansion, more uniform application of the mold release liquid can be achieved by transfer.

また、上記実施形態では、加熱手段５が転写型１を加熱する構成にしたが、転写型１に代えてタイヤ加硫用ブラダー８を加熱するように構成してもよく、また転写型１とタイヤ加硫用ブラダー８の両者を加熱するようにしてもよい。タイヤ加硫用ブラダー８を加熱する加熱手段としては、図１に示す実施形態では、タイヤ加硫用ブラダー８を膨張させるためにタイヤ加硫用ブラダー８内に供給する気体や液体に低圧蒸気や加温水など加熱媒体を使用し、それらを加熱手段として用いることができる。図７に示す実施形態では、膨張手段１３の供給源１３Ａから供給される流体に低圧蒸気や加温水など加熱媒体を使用し、それらを加熱手段として用いることができる。   Further, in the above embodiment, the heating means 5 is configured to heat the transfer mold 1, but it may be configured to heat the tire vulcanizing bladder 8 instead of the transfer mold 1. Both of the tire vulcanizing bladders 8 may be heated. In the embodiment shown in FIG. 1, as a heating means for heating the tire vulcanizing bladder 8, low pressure steam or gas is supplied to the gas or liquid supplied into the tire vulcanizing bladder 8 in order to expand the tire vulcanizing bladder 8. A heating medium such as warm water can be used, and these can be used as heating means. In the embodiment shown in FIG. 7, a heating medium such as low-pressure steam or warm water can be used as the fluid supplied from the supply source 13 </ b> A of the expansion means 13, and these can be used as the heating means.

図１に示す塗布装置を用いて、１９５／６５Ｒ１５サイズのタイヤを１５００本加硫したところ、離型液に起因する加硫故障がないことを確認した。各条件は下記の通りである。
転写型：ゴム製で高さ３６０ｍｍ、直径４６０ｍｍ（最大外径）
タイヤ加硫用ブラダー：ゴム製で高さ３２０ｍｍ、直径４２０ｍｍ（最大外径）
離型液：粘度９０ｍＰａ・ｓのジオルガノポリシロキサン含有エマルジョン
転写頻度：１回の離型液転写で１５本のタイヤを加硫
離型液の供給量：２０ｇ／１回
ベントホールの間隔と直径：間隔２５ｍｍ、直径１ｍｍ
塗布する回転円板の回転数：１００００ｒｐｍ
タイヤ加硫用ブラダーの膨張条件：０．０１５ＭＰａで１５秒保持
加熱手段：６００Ｗの遠赤外線ヒータ２台 When 1500 tires of 195 / 65R15 size were vulcanized using the coating apparatus shown in FIG. 1, it was confirmed that there was no vulcanization failure due to the mold release liquid. Each condition is as follows.
Transfer mold: made of rubber, 360mm in height, 460mm in diameter (maximum outer diameter)
Tire vulcanization bladder: rubber, height 320mm, diameter 420mm (maximum outer diameter)
Mold release liquid: Diorganopolysiloxane-containing emulsion with a viscosity of 90 mPa · s Transfer frequency: 15 tires are vulcanized by one mold release liquid transfer Amount of mold release liquid: 20 g / time Vent hole spacing and diameter : Spacing 25mm, diameter 1mm
Number of rotations of rotating disc to be applied: 10000 rpm
Expansion condition of tire vulcanization bladder: Hold for 15 seconds at 0.015 MPa Heating means: 2 600 W far infrared heaters

本発明のタイヤ加硫用ブラダーへの離型液塗布方法を実施するための塗布装置の一例を示す概略正面図である。It is a schematic front view which shows an example of the coating device for implementing the mold release liquid application method to the bladder for tire vulcanization | cure of this invention. 図１の塗布装置の保持手段を示す平面説明図である。It is plane explanatory drawing which shows the holding means of the coating device of FIG. 転写型内面の要部拡大図である。It is a principal part enlarged view of a transfer type inner surface. 回転円板の遠心力を用いて離型液を転写型内面に付着させる説明図である。It is explanatory drawing which makes a mold release liquid adhere to a transfer type | mold inner surface using the centrifugal force of a rotating disc. 転写型内にタイヤ加硫用ブラダーを挿入した状態を示す説明図である。It is explanatory drawing which shows the state which inserted the bladder for tire vulcanizations in the transfer type | mold. 転写型内でタイヤ加硫用ブラダーを膨張させた状態を示す説明図である。It is explanatory drawing which shows the state which expanded the bladder for tire vulcanization within a transfer type | mold. 本発明のタイヤ加硫用ブラダーへの離型液塗布方法を実施するための塗布装置の他の例を示す概略正面図である。It is a schematic front view which shows the other example of the coating device for enforcing the mold release liquid application method to the bladder for tire vulcanization | cure of this invention. 転写型の他の例における内面の要部拡大図である。It is a principal part enlarged view of the inner surface in the other example of a transfer type | mold.

符号の説明Explanation of symbols

１ 転写型
１ａ 内面
１ｂ 外面
２ 保持手段
３ 付着手段
４ 移動手段
５ 加熱手段
６ ベントホール
８ タイヤ加硫用ブラダー
８ａ 外表面
１１ 保持手段
１２ 移動手段
１３ 膨張手段
２０ 溝 DESCRIPTION OF SYMBOLS 1 Transfer mold | type 1a Inner surface 1b Outer surface 2 Holding means 3 Adhering means 4 Moving means 5 Heating means 6 Vent hole 8 Tire vulcanization bladder 8a Outer surface 11 Holding means 12 Moving means 13 Expansion means 20 Groove

Claims (9)

筒状の転写型の内面に離型液を付着させる工程と、該転写型内にタイヤ加硫用ブラダーを挿入する工程と、該タイヤ加硫用ブラダーを膨張させて転写型の内面に付着する離型液をタイヤ加硫用ブラダーの外表面に転写する工程とからなるタイヤ加硫用ブラダーへの離型液塗布方法。   A step of attaching a mold release liquid to the inner surface of the cylindrical transfer mold, a step of inserting a tire vulcanizing bladder into the transfer mold, and expanding the tire vulcanizing bladder to adhere to the inner surface of the transfer mold. A method for applying a mold release liquid to a tire vulcanization bladder comprising a step of transferring a mold release liquid to the outer surface of a tire vulcanization bladder. 前記転写する工程は、前記転写型及び／又はタイヤ加硫用ブラダーを加熱しながら転写する請求項１に記載のタイヤ加硫用ブラダーへの離型液塗布方法。   The method for applying a release liquid to the tire vulcanization bladder according to claim 1, wherein the transferring step is performed while the transfer mold and / or the tire vulcanization bladder is heated. 前記転写型は、転写型の内面から外面に貫通するベントホールを所定の間隔で配列してなる請求項１または２に記載のタイヤ加硫用ブラダーへの離型液塗布方法。   The method for applying a mold release liquid to the tire vulcanization bladder according to claim 1, wherein the transfer mold is formed by arranging vent holes penetrating from the inner surface to the outer surface of the transfer mold at a predetermined interval. 前記転写型は、内面に格子状の溝または突起を有する請求項１，２または３に記載のタイヤ加硫用ブラダーへの離型液塗布方法。   The mold release liquid application method to the tire vulcanization bladder according to claim 1, wherein the transfer mold has lattice-shaped grooves or protrusions on an inner surface. タイヤ加硫用ブラダーの外表面に離型液を転写するための筒状の転写型と、該転写型の内面に離型液を付着させる付着手段と、前記転写型をタイヤ加硫機のタイヤ加硫用ブラダーまで移動させる移動手段とを具備するタイヤ加硫用ブラダーへの離型液塗布装置。   A cylindrical transfer mold for transferring the mold release liquid to the outer surface of the tire vulcanization bladder, an attaching means for attaching the mold release liquid to the inner surface of the transfer mold, and the transfer mold as a tire for a tire vulcanizer A release liquid coating apparatus for a tire vulcanizing bladder, comprising a moving means for moving to a vulcanizing bladder. タイヤ加硫用ブラダーの外表面に離型液を転写するための筒状の転写型と、該転写型の内面に離型液を付着させる付着手段と、前記タイヤ加硫用ブラダーを保持する保持手段と、該保持手段で保持したタイヤ加硫用ブラダーを前記転写型内に移動させる移動手段と、該転写型内で前記タイヤ加硫用ブラダーを膨張させる膨張手段とを具備するタイヤ加硫用ブラダーへの離型液塗布装置。   A cylindrical transfer mold for transferring the mold release liquid to the outer surface of the tire vulcanization bladder, an attachment means for attaching the mold release liquid to the inner surface of the transfer mold, and a holder for holding the tire vulcanization bladder Means for moving the tire vulcanizing bladder held by the holding means, and expansion means for expanding the bladder for vulcanizing the tire in the transfer mold. Release liquid application device for bladder. 前記転写型の外側に該転写型及び／又はタイヤ加硫用ブラダーを加熱する加熱手段を配置した請求項５または６に記載のタイヤ加硫用ブラダーへの離型液塗布装置。   The mold release liquid application apparatus to the tire vulcanization bladder according to claim 5 or 6, wherein a heating means for heating the transfer mold and / or the tire vulcanization bladder is disposed outside the transfer mold. 前記転写型は、転写型の内面から外面まで貫通するベントホールを所定の間隔で配列してなる請求項５，６または７に記載のタイヤ加硫用ブラダーへの離型液塗布装置。   8. The mold release liquid coating apparatus for a tire vulcanization bladder according to claim 5, wherein the transfer mold has vent holes penetrating from an inner surface to an outer surface of the transfer mold at predetermined intervals. 前記転写型は、内面に格子状の溝または突起を有する請求項５乃至８のいずれか１項に記載のタイヤ加硫用ブラダーへの離型液塗布装置。   The mold release liquid application apparatus for a tire vulcanization bladder according to any one of claims 5 to 8, wherein the transfer mold has lattice-shaped grooves or protrusions on an inner surface.
JP2007255356A 2007-09-28 2007-09-28 Method and apparatus for applying release liquid to bladder for tire vulcanization Expired - Fee Related JP4962247B2 (en)

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