JP2006110738A - Tire vulcanizer - Google Patents

Tire vulcanizer Download PDF

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JP2006110738A
JP2006110738A JP2004297276A JP2004297276A JP2006110738A JP 2006110738 A JP2006110738 A JP 2006110738A JP 2004297276 A JP2004297276 A JP 2004297276A JP 2004297276 A JP2004297276 A JP 2004297276A JP 2006110738 A JP2006110738 A JP 2006110738A
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fluid
port
circulation
bladder
fluid supply
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JP3964422B2 (en
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Hironobu Ichimaru
寛展 市丸
Naofumi Yoshimi
直文 吉見
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Ichimaru Giken Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a tire vulcanizer constituted so as not to allow drain to flow in a circulating pipeline while discharging the drain without hindrance to prevent excessive load from acting on a fluid feeder. <P>SOLUTION: In the tire vulcanizer equipped with a bladder 1, a fluid supply port 2 and fluid discharge port 3 both of which are opened to the inside of the bladder, the fluid supply pipeline 20 connected to the fluid supply port and the fluid discharge pipeline 30 connected to the fluid discharge port, circulating ports 70 and 71 formed at two places separately from the fluid supply port and the fluid discharge port so as to be opened to the inside of the bladder so that the circulating ports at two places are arranged above the fluid supply port and the fluid discharge port and the circulating pipeline 7 is formed between the circulating ports at two places while the fluid feeder 5 is arranged on the way of the circulating pipeline. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、タイヤ加硫機に関し、特に、タイヤ加硫機に設けたブラダーに加熱流体を供給・排出すると共に、ブラダー内に充満した加熱流体を循環させるための技術に関する。   The present invention relates to a tire vulcanizer, and more particularly to a technique for supplying and discharging heated fluid to a bladder provided in the tire vulcanizer and circulating the heated fluid filled in the bladder.

タイヤ加硫機は、上下の金型と、加熱流体（蒸気）の供給・排出によって拡縮するブラダーを備え、前記金型の内部にセットした生タイヤの内面に、加熱流体の供給によって膨張したブラダーを押し付けることで、生タイヤを加硫成形するようになっている。
この場合、ブラダー内の温度差を解消させるため、ブラダー内に充満した加熱流体を循環させるようにした流体循環装置が知られている（特許文献１参照）。 The tire vulcanizer includes upper and lower molds and a bladder that expands and contracts by supplying and discharging heated fluid (steam), and a bladder that is expanded by supplying heated fluid on the inner surface of the raw tire set inside the mold. By pressing, green tires are vulcanized.
In this case, in order to eliminate the temperature difference in the bladder, there is known a fluid circulation device that circulates a heated fluid filled in the bladder (see Patent Document 1).

この流体循環装置は、図４に示すように、加熱流体の供給・排出によって拡縮するブラダー１と、前記ブラダー１内に開口した流体供給口２及び流体排出口３と、前記流体供給口２に接続した流体供給管路２０及び前記流体排出口３に接続した流体排出管路３０とを備え、そして、前記流体供給管路２０と流体排出管路３０とを連通管４０で連通して循環管路４を形成させ、この循環管路４に流体送り装置５及びゲート弁６を設けた構成になっていた。   As shown in FIG. 4, the fluid circulation device includes a bladder 1 that expands and contracts by supplying and discharging heated fluid, a fluid supply port 2 and a fluid discharge port 3 that are opened in the bladder 1, and a fluid supply port 2. A fluid supply pipe line 20 connected to the fluid discharge port 3 and a fluid discharge pipe line 30 connected to the fluid discharge port 3, and the fluid supply pipe line 20 and the fluid discharge pipe line 30 communicate with each other through a communication pipe 40. The passage 4 is formed, and the fluid feeding device 5 and the gate valve 6 are provided in the circulation pipe 4.

そして、流体供給弁２１及び流体排出弁３１を開放し、ゲート弁６を閉鎖した状態で、流体供給管路２０を通して流体供給口２からブラダー１内に加熱流体を供給して充満させ、その後、流体供給弁２１及び流体排出弁３１を閉鎖して、ゲート弁６を開放し、その状態で流体送り装置５により加熱流体を循環管路４とブラダー１内とで循環させるようになっている。
即ち、この従来技術は、ブラダー１内に開口した流体供給口２及び流体排出口３を、循環管路４の循環口に兼用させたものである。 Then, the fluid supply valve 21 and the fluid discharge valve 31 are opened and the gate valve 6 is closed, and the heated fluid is supplied from the fluid supply port 2 into the bladder 1 through the fluid supply line 20 to be filled. The fluid supply valve 21 and the fluid discharge valve 31 are closed, the gate valve 6 is opened, and the heated fluid is circulated between the circulation line 4 and the bladder 1 by the fluid feeder 5 in this state.
That is, in this prior art, the fluid supply port 2 and the fluid discharge port 3 opened in the bladder 1 are also used as the circulation port of the circulation line 4.

上記のように、加熱流体（蒸気）によってブラダーを拡縮させるものでは、ブラダー１内での熱交換によって加熱流体が液化し、ドレンが発生する。
このドレンを排出させるためには、流体排出口３をブラダー１の底部に開口して形成させる必要があり、このため、この流体排出口３を循環管路４の循環口に兼用させると、どうしてもドレンが循環管路４内に流入してしまうことになる。 As described above, when the bladder is expanded or contracted by the heating fluid (steam), the heating fluid is liquefied by heat exchange in the bladder 1 and drainage is generated.
In order to discharge this drain, it is necessary to form the fluid discharge port 3 at the bottom of the bladder 1. For this reason, if this fluid discharge port 3 is also used as the circulation port of the circulation line 4, The drain will flow into the circulation line 4.

このように、加熱ガスのドレンが循環管路４を流動すると、流体送り装置５に過大な負荷がかかり、加熱ガスの循環流量を上げることが困難になる。
この結果、ブラダー１内の温度差解消能力が低減し、タイヤ加硫時間が長くなって、タイヤの生産能力が低下してしまうという問題があった。
特開昭６２−３３６１１号公報 As described above, when the drain of the heated gas flows through the circulation pipe 4, an excessive load is applied to the fluid feeder 5, and it becomes difficult to increase the circulating flow rate of the heated gas.
As a result, there was a problem that the temperature difference elimination capability in the bladder 1 was reduced, the tire vulcanization time was prolonged, and the tire production capability was reduced.
JP-A-62-33611

本発明は、上記のような従来の問題を解決するためになされたもので、ドレンの排出口となる流体排出口を循環口に兼用させず、かつ循環口を流体排出口よりも上方に配置させた循環管路を形成することにより、循環管路にドレンの流入がないように形成して、循環管路に設けた流体送り装置にドレンによる過大な負荷がかかることがないようにしたタイヤ加硫機を提供することを課題としている。   The present invention has been made in order to solve the above-described conventional problems. The fluid discharge port serving as a drain discharge port is not used as a circulation port, and the circulation port is disposed above the fluid discharge port. By forming the circulation line, the tire is formed so that there is no inflow of drain into the circulation line, and an excessive load due to the drain is not applied to the fluid feeding device provided in the circulation line. The issue is to provide a vulcanizer.

上記の課題を解決するために、本発明（請求項１）のタイヤ加硫機は、
加熱流体の供給・排出によって拡縮するブラダーと、前記ブラダー内に開口した流体供給口及び流体排出口と、前記流体供給口に接続した流体供給管路及び前記流体排出口に接続した流体排出管路とを備え、金型の内部にセットした生タイヤの内面に、加熱流体の供給によって膨張したブラダーを押し付けるようにしたタイヤ加硫機において、
前記流体供給口及び流体排出口とは別に２ヵ所に循環口がブラダー内に開口して形成され、
前記２ヵ所の循環口が流体供給口及び流体排出口よりも上方に配置されると共に、この２ヵ所の循環口の間に循環管路が形成され、
この循環管路の途中に流体送り装置が配設されている構成とした。 In order to solve the above problems, the tire vulcanizer of the present invention (Claim 1)
A bladder that expands and contracts by supplying and discharging heated fluid, a fluid supply port and a fluid discharge port opened in the bladder, a fluid supply line connected to the fluid supply port, and a fluid discharge line connected to the fluid discharge port In a tire vulcanizer in which a bladder expanded by supplying heated fluid is pressed against the inner surface of a raw tire set inside a mold,
In addition to the fluid supply port and the fluid discharge port, two circulation ports are formed in the bladder.
The two circulation ports are disposed above the fluid supply port and the fluid discharge port, and a circulation line is formed between the two circulation ports.
The fluid feeding device is disposed in the middle of the circulation pipe.

又、本発明（請求項２）のタイヤ加硫機は、
加熱流体の供給・排出によって拡縮するブラダーと、前記ブラダー内に開口した流体供給口及び流体排出口と、前記流体供給口に接続した流体供給管路及び前記流体排出口に接続した流体排出管路とを備え、金型の内部にセットした生タイヤの内面に、加熱流体の供給によって膨張したブラダーを押し付けるようにしたタイヤ加硫機において、
前記流体供給口及び流体排出口とは別に１ヵ所に循環口がブラダー内に開口して形成され、
前記１ヵ所の循環口及び前記流体供給口が流体排出口よりも上方に配置されると共に、この循環口と流体供給口の間に循環管路が形成され、
この循環管路の途中に流体送り装置が配設されている構成とした。 The tire vulcanizer of the present invention (Claim 2)
A bladder that expands and contracts by supplying and discharging heated fluid, a fluid supply port and a fluid discharge port opened in the bladder, a fluid supply line connected to the fluid supply port, and a fluid discharge line connected to the fluid discharge port In a tire vulcanizer in which a bladder expanded by supplying heated fluid is pressed against the inner surface of a raw tire set inside a mold,
In addition to the fluid supply port and the fluid discharge port, a circulation port is formed in one place in the bladder,
The one circulation port and the fluid supply port are disposed above the fluid discharge port, and a circulation line is formed between the circulation port and the fluid supply port.
The fluid feeding device is disposed in the middle of the circulation pipe.

本発明（請求項１）のタイヤ加硫機は、流体供給口及び流体排出口とは別の２ヵ所に循環口を形成したので、ドレンの排出口となる流体排出口を循環口に兼用させる必要がなくなる。
しかも、この２ヵ所の循環口を流体供給口及び流体排出口よりも上方に配置させた循環管路を形成したので、循環管路にドレンが流入すると行ったことはなく、循環管路に設けた流体送り装置にドレンによる過大な負荷がかかるのを防止できる。
したがって、ブラダー内に充満した加熱流体をスムーズに循環させることができ、ブラダー内の温度差解消能力を向上させることができる。 In the tire vulcanizer of the present invention (Claim 1), the circulation port is formed at two places different from the fluid supply port and the fluid discharge port, so that the fluid discharge port serving as the drain discharge port is also used as the circulation port. There is no need.
Moreover, since the circulation pipes in which these two circulation ports are arranged above the fluid supply port and the fluid discharge port are formed, it has never been performed when drain flows into the circulation pipe, and is provided in the circulation pipe. Further, it is possible to prevent an excessive load from being applied to the fluid feeding device.
Therefore, the heated fluid filled in the bladder can be circulated smoothly, and the temperature difference elimination capability in the bladder can be improved.

又、本発明（請求項２）のタイヤ加硫機は、流体供給口及び流体排出口とは別の１ヵ所に循環口を形成したので、ドレンの排出口となる流体排出口を循環口に兼用させる必要がなくなる。
しかも、この１ヵ所の循環口及び流体供給口を流体排出口よりも上方に配置させた循環管路を形成したので、循環管路にドレンが流入するといったことはなく、循環管路に設けた流体送り装置にドレンによる過大な負荷がかかるのを防止できる。
したがって、ブラダー内に充満した加熱流体をスムーズに循環させることができ、ブラダー内の温度差解消能力を向上させることができる。 In the tire vulcanizer according to the present invention (Claim 2), since the circulation port is formed at one place different from the fluid supply port and the fluid discharge port, the fluid discharge port serving as the drain discharge port is used as the circulation port. There is no need to use them together.
In addition, since the circulation line in which the one circulation port and the fluid supply port are disposed above the fluid discharge port is formed, drain does not flow into the circulation line, and the circulation line is provided in the circulation line. It is possible to prevent an excessive load due to the drain from being applied to the fluid feeder.
Therefore, the heated fluid filled in the bladder can be circulated smoothly, and the temperature difference elimination capability in the bladder can be improved.

以下、本発明の実施の形態を図面に示す実施例より説明する。尚、本発明の具体的な構成は、以下の実施例に限定されるものではない。
図１は本発明の請求項１記載のタイヤ加硫機に対応した第１実施例を示す説明図である。 Embodiments of the present invention will be described below with reference to examples shown in the drawings. In addition, the specific structure of this invention is not limited to a following example.
FIG. 1 is an explanatory view showing a first embodiment corresponding to a tire vulcanizer according to claim 1 of the present invention.

タイヤ加硫機は、加熱流体の供給・排出によって拡縮するブラダー１と、前記ブラダー１内に開口した流体供給口２及び流体排出口３と、前記流体供給口２に接続した流体供給管路２０及び前記流体排出口３に接続した流体排出管路３０とを備え、上下の金型（図示省略）の内部にセットした生タイヤ（図示省略）の内面に、加熱流体の供給によって膨張したブラダー１を押し付けることで、生タイヤを保持させながら加硫成形するようになっている。
なお、前記流体供給口２及び流体排出口３は、流体供給管路２０及び流体排出管路３０をブラダー１の底面から貫通させることでブラダー１内に開口するように形成されている。 The tire vulcanizer includes a bladder 1 that expands and contracts by supplying and discharging heated fluid, a fluid supply port 2 and a fluid discharge port 3 that are opened in the bladder 1, and a fluid supply line 20 that is connected to the fluid supply port 2. And a fluid discharge line 30 connected to the fluid discharge port 3, and a bladder 1 that is expanded by supplying heated fluid to the inner surface of a raw tire (not shown) set in upper and lower molds (not shown). By pressing, vulcanization molding is performed while holding the green tire.
The fluid supply port 2 and the fluid discharge port 3 are formed to open into the bladder 1 by passing the fluid supply line 20 and the fluid discharge line 30 from the bottom surface of the bladder 1.

前記ブラダー１の内部には、前記流体供給口２及び流体排出口３とは別に２ヵ所に循環口７０，７１が開口して形成され、この２ヵ所の循環口７０，７１は、前記流体供給口２及び流体排出口３よりも上方に配置されている。
そして、この２ヵ所の循環口７０，７１の間に循環管路７が形成され、この循環管路７の途中に送風機やポンプ等による流体送り装置５とゲート弁６が配設されている。
この場合、２ヵ所の循環口７０，７１は、循環管路７をブラダー１の上面から貫通させることでブラダー１内に開口するように形成されている。 In the bladder 1, circulation ports 70 and 71 are formed at two locations separately from the fluid supply port 2 and the fluid discharge port 3, and the circulation ports 70 and 71 at the two locations are provided with the fluid supply port. It is disposed above the port 2 and the fluid discharge port 3.
A circulation pipe 7 is formed between the two circulation ports 70 and 71, and a fluid feeder 5 and a gate valve 6 such as a blower or a pump are disposed in the middle of the circulation pipe 7.
In this case, the two circulation ports 70 and 71 are formed so as to open into the bladder 1 by penetrating the circulation pipe 7 from the upper surface of the bladder 1.

従って、金型の内部に生タイヤをセットした状態で流体供給弁２１及び流体排出弁３１を開放し、ゲート弁６を閉鎖した状態で、流体供給管路２から加熱流体を供給すると、ブラダー１の内部に流体供給口２から加熱流体が流入していくもので、この加熱流体でブラダー１の内部が充満した状態で、前記流体供給弁２１及び流体排出弁３１を閉鎖させる。   Accordingly, when the fluid supply valve 21 and the fluid discharge valve 31 are opened with the raw tire set inside the mold and the gate valve 6 is closed, and the heated fluid is supplied from the fluid supply line 2, the bladder 1 The heated fluid flows into the interior of the fluid supply port 2, and the fluid supply valve 21 and the fluid discharge valve 31 are closed while the interior of the bladder 1 is filled with the heated fluid.

上記のようにしてブラダー１の内部に加熱流体を充満させたのち、ゲート弁６を開放させて、循環管路７を開通させ、この循環管路７とブラダー１の内部とで循環閉回路を形成させる。
この状態で流体送り装置５を作動させて、加熱流体を循環管路７とブラダー１の内部とで循環させるもので、この加熱流体が循環することによりブラダー１内の温度差を解消させることができる。 After filling the inside of the bladder 1 with the heating fluid as described above, the gate valve 6 is opened, the circulation line 7 is opened, and a circulation closed circuit is formed between the circulation line 7 and the inside of the bladder 1. Let it form.
In this state, the fluid feeding device 5 is operated to circulate the heating fluid between the circulation line 7 and the inside of the bladder 1, and this heating fluid circulates to eliminate the temperature difference in the bladder 1. it can.

なお、循環管路７を流動する加熱流体の流動方向については、流体送り装置５の向きによって任意に決定できるもので、流体送り装置５の吸入側５ａに連通する循環口７０が往き側循環口となり、流体送り装置５の吐出側５ｂに連通する循環口７１が戻り側循環口となり、往き側循環口７０から流体送り装置５を経て戻り側循環口７１に至る流動方向となる。   Note that the flow direction of the heating fluid flowing through the circulation pipe 7 can be arbitrarily determined depending on the direction of the fluid feeding device 5, and the circulation port 70 communicating with the suction side 5 a of the fluid feeding device 5 is a forward-side circulation port. Thus, the circulation port 71 communicating with the discharge side 5b of the fluid feeder 5 becomes the return side circulation port, and the flow direction is from the forward circulation port 70 through the fluid feeder 5 to the return side circulation port 71.

このとき、加熱流体は、ブラダー１内での熱交換によって、その一部が液化してドレンになってしまう。
このドレンは、ブラダー１内の底部に溜まることになるが、２ヵ所の循環口７０，７１が流体供給口２及び流体排出口３よりも上方に配置されているので、循環管路７へのドレンの流入がなく、循環管路７に設けた流体送り装置５にドレンによる過大な負荷がかかるのを防止できる。 At this time, a part of the heated fluid is liquefied and drained by heat exchange in the bladder 1.
This drain is collected at the bottom of the bladder 1, but the two circulation ports 70, 71 are arranged above the fluid supply port 2 and the fluid discharge port 3, so There is no inflow of drain, and it is possible to prevent an excessive load from being applied to the fluid feeder 5 provided in the circulation pipe 7.

又、流体排出口３がブラダー１の底部に開口して形成されているため、ドレンの排出を支障なく行なうことができる。   Further, since the fluid discharge port 3 is formed to open at the bottom of the bladder 1, the drain can be discharged without hindrance.

次に、図２は本発明の請求項１記載のタイヤ加硫機に対応した第２実施例を示す説明図である。   Next, FIG. 2 is explanatory drawing which shows 2nd Example corresponding to the tire vulcanizer of Claim 1 of this invention.

このタイヤ加硫機では、流体供給口２及び流体排出口３とは別に２ヵ所に循環口７０，７１がブラダー１内に開口して形成され、この２ヵ所の循環口７０，７１は、循環管路７をブラダー１の底面から貫通させて上方に延長させることで、前記流体供給口２及び流体排出口３よりも上方に配置するように形成されている。
なお、その他の構成及び作用は前記第１実施例と同様である。 In this tire vulcanizer, circulation ports 70 and 71 are formed in two locations apart from the fluid supply port 2 and the fluid discharge port 3 in the bladder 1, and the circulation ports 70 and 71 at these two locations are circulated. The pipe 7 is formed so as to be disposed above the fluid supply port 2 and the fluid discharge port 3 by penetrating from the bottom surface of the bladder 1 and extending upward.
Other configurations and operations are the same as those in the first embodiment.

次に、図３は本発明の請求項２記載のタイヤ加硫機に対応した第３実施例を示す説明図である。   Next, FIG. 3 is explanatory drawing which shows 3rd Example corresponding to the tire vulcanizer of Claim 2 of this invention.

このタイヤ加硫機では、流体供給口２及び流体排出口３とは別に１ヵ所に循環口７２がブラダー１内に開口して形成され、この１ヵ所の循環口７２と前記流体供給口２が流体排出口３よりも上方に配置されている。
そして、この循環口７２と流体供給口２の間に循環管路７が形成され、この循環管路７の途中に流体送り装置５とゲート弁６が配設されている。
この場合、１ヵ所の循環口７２は循環管路７をブラダー１の上面から貫通させることでブラダー１内に開口するように形成され、また流体供給口２は、流体供給管路２０をブラダー１の上面から貫通させることでブラダー１内に開口するように形成されている。 In this tire vulcanizer, a circulation port 72 is formed in the bladder 1 at one location separately from the fluid supply port 2 and the fluid discharge port 3, and the circulation port 72 and the fluid supply port 2 at this one location are connected to each other. It is disposed above the fluid discharge port 3.
A circulation line 7 is formed between the circulation port 72 and the fluid supply port 2, and the fluid feeder 5 and the gate valve 6 are disposed in the middle of the circulation line 7.
In this case, one circulation port 72 is formed so as to open into the bladder 1 by penetrating the circulation line 7 from the upper surface of the bladder 1, and the fluid supply port 2 connects the fluid supply line 20 to the bladder 1. It is formed so as to open in the bladder 1 by penetrating from the upper surface.

この実施例では、流体供給口２を循環管路７の循環口に兼用させてはいるが、ドレンの排出口となる流体排出口３を循環口に兼用させず、循環口７２及び流体供給口２を流体排出口３よりも上方に配置させたので、循環管路７へのドレンの流入がなく、循環管路７に設けた流体送り装置５にドレンによる過大な負荷がかかるのを防止できるし、又、流体排出口３がブラダー１の底部に開口して形成されているため、ドレンの排出を支障なく行なうことができる。   In this embodiment, the fluid supply port 2 is also used as the circulation port of the circulation pipe 7, but the fluid discharge port 3 serving as the drain discharge port is not used as the circulation port, and the circulation port 72 and the fluid supply port are used. 2 is disposed above the fluid discharge port 3, so that there is no inflow of drain into the circulation line 7, and it is possible to prevent an excessive load from being applied to the fluid feeding device 5 provided in the circulation line 7. Moreover, since the fluid discharge port 3 is formed to open at the bottom of the bladder 1, the drain can be discharged without any trouble.

なお、前記第３実施例において、循環口７２と流体供給口２の何れか一方又は両方を、第２実施例で示したように、管路をブラダー１の底面から貫通させて上方に延長させることで、流体排出口３よりも上方に配置するように形成してもよい。   In the third embodiment, either one or both of the circulation port 72 and the fluid supply port 2 are extended upward through the pipe line from the bottom surface of the bladder 1 as shown in the second embodiment. Thus, it may be formed so as to be disposed above the fluid discharge port 3.

又、本発明において、循環管路に加熱装置を設けるようにしてもよい。
この加熱装置としては、スチームジャケットや電熱ヒータが用いられ、この加熱装置によって、循環管路の加熱流体を加熱することで、加熱流体の温度低下及び圧力低下を防止することができる。なお、この加熱装置の取付位置は循環管路の途中であれば、どこでもよい。 In the present invention, a heating device may be provided in the circulation line.
As the heating device, a steam jacket or an electric heater is used. By heating the heating fluid in the circulation line with this heating device, it is possible to prevent a temperature drop and a pressure drop of the heating fluid. In addition, the attachment position of this heating apparatus may be anywhere as long as it is in the middle of the circulation pipeline.

本発明の請求項１記載のタイヤ加硫機に対応した第１実施例を示す説明図である。It is explanatory drawing which shows 1st Example corresponding to the tire vulcanizer of Claim 1 of this invention. 本発明の請求項１記載のタイヤ加硫機に対応した第２実施例を示す説明図である。It is explanatory drawing which shows 2nd Example corresponding to the tire vulcanizer of Claim 1 of this invention. 本発明の請求項２記載のタイヤ加硫機に対応した第３実施例を示す説明図である。It is explanatory drawing which shows 3rd Example corresponding to the tire vulcanizer of Claim 2 of this invention. 従来技術のタイヤ加硫機を示す説明図である。It is explanatory drawing which shows the tire vulcanizer of a prior art.

符号の説明Explanation of symbols

１ ブラダー
２ 流体供給口
２０ 流体供給管路
２１ 流体供給弁
３ 流体排出口
３０ 流体排出管路
３１ 流体排出弁
５ 流体送り装置
５ａ 吸入側
５ｂ 吐出側
６ ゲート弁
７ 循環管路
７０ 循環口
７１ 循環口
７２ 循環口 DESCRIPTION OF SYMBOLS 1 Bladder 2 Fluid supply port 20 Fluid supply line 21 Fluid supply valve 3 Fluid discharge port 30 Fluid discharge line 31 Fluid discharge valve 5 Fluid feeder 5a Suction side 5b Discharge side 6 Gate valve 7 Circulation line 70 Circulation port 71 Circulation口 72 Circulation port

Claims (2)

加熱流体の供給・排出によって拡縮するブラダーと、前記ブラダー内に開口した流体供給口及び流体排出口と、前記流体供給口に接続した流体供給管路及び前記流体排出口に接続した流体排出管路とを備え、金型の内部にセットした生タイヤの内面に、加熱流体の供給によって膨張したブラダーを押し付けるようにしたタイヤ加硫機において、
前記流体供給口及び流体排出口とは別に２ヵ所に循環口がブラダー内に開口して形成され、
前記２ヵ所の循環口が流体供給口及び流体排出口よりも上方に配置されると共に、この２ヵ所の循環口の間に循環管路が形成され、
この循環管路の途中に流体送り装置が配設されていることを特徴とするタイヤ加硫機。 A bladder that expands and contracts by supplying and discharging heated fluid, a fluid supply port and a fluid discharge port opened in the bladder, a fluid supply line connected to the fluid supply port, and a fluid discharge line connected to the fluid discharge port In a tire vulcanizer in which a bladder expanded by supplying heated fluid is pressed against the inner surface of a raw tire set inside a mold,
In addition to the fluid supply port and the fluid discharge port, two circulation ports are formed in the bladder.
The two circulation ports are disposed above the fluid supply port and the fluid discharge port, and a circulation line is formed between the two circulation ports.
A tire vulcanizer characterized in that a fluid feeding device is disposed in the middle of the circulation pipe. 加熱流体の供給・排出によって拡縮するブラダーと、前記ブラダー内に開口した流体供給口及び流体排出口と、前記流体供給口に接続した流体供給管路及び前記流体排出口に接続した流体排出管路とを備え、金型の内部にセットした生タイヤの内面に、加熱流体の供給によって膨張したブラダーを押し付けるようにしたタイヤ加硫機において、
前記流体供給口及び流体排出口とは別に１ヵ所に循環口がブラダー内に開口して形成され、
前記１ヵ所の循環口及び前記流体供給口が流体排出口よりも上方に配置されると共に、この循環口と流体供給口の間に循環管路が形成され、
この循環管路の途中に流体送り装置が配設されていることを特徴とするタイヤ加硫機。
A bladder that expands and contracts by supplying and discharging heated fluid, a fluid supply port and a fluid discharge port opened in the bladder, a fluid supply line connected to the fluid supply port, and a fluid discharge line connected to the fluid discharge port In a tire vulcanizer in which a bladder expanded by supplying heated fluid is pressed against the inner surface of a raw tire set inside a mold,
In addition to the fluid supply port and the fluid discharge port, a circulation port is formed in one place in the bladder,
The one circulation port and the fluid supply port are disposed above the fluid discharge port, and a circulation line is formed between the circulation port and the fluid supply port.
A tire vulcanizer characterized in that a fluid feeding device is disposed in the middle of the circulation pipe.
JP2004297276A 2004-10-12 2004-10-12 Tire vulcanizer Active JP3964422B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170320243A1 (en) * 2015-01-14 2017-11-09 Ichimaru-Giken Co., Ltd. Piping structure of tire vulcanizer, circulator, and method for vulcanizing tire with tire vulcanizer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170320243A1 (en) * 2015-01-14 2017-11-09 Ichimaru-Giken Co., Ltd. Piping structure of tire vulcanizer, circulator, and method for vulcanizing tire with tire vulcanizer
US10836079B2 (en) * 2015-01-14 2020-11-17 Rocky-Ichimaru Co., Ltd. Piping structure of tire vulcanizer, circulator, and method for vulcanizing tire with tire vulcanizer

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