JP2003220613A - Control method for loading and unloading bladder for vulcanizing tire and its apparatus - Google Patents
Control method for loading and unloading bladder for vulcanizing tire and its apparatusInfo
- Publication number
- JP2003220613A JP2003220613A JP2002019990A JP2002019990A JP2003220613A JP 2003220613 A JP2003220613 A JP 2003220613A JP 2002019990 A JP2002019990 A JP 2002019990A JP 2002019990 A JP2002019990 A JP 2002019990A JP 2003220613 A JP2003220613 A JP 2003220613A
- Authority
- JP
- Japan
- Prior art keywords
- bladder
- tire
- vulcanization
- clamp member
- unvulcanized
- 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.)
- Granted
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、タイヤ加硫用ブ
ラダーの挿入及び取出し制御方法及びその装置に係わ
り、更に詳しくは未加硫タイヤに対するブラダーの挿入
を確実に行うことが出来ると共に、ブラダーと未加硫タ
イヤとのセンターリングを確実に行うことが出来るタイ
ヤ加硫用ブラダーの挿入及び取出し制御方法及びその装
置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire vulcanization bladder insertion / extraction control method and device, and more specifically, it can reliably insert a bladder into an unvulcanized tire, The present invention relates to a tire vulcanization bladder insertion / extraction control method and device capable of reliably performing centering with an unvulcanized tire.
【０００２】[0002]
【従来の技術】従来、未加硫タイヤを加硫成形する際、
未加硫タイヤにブラダーを挿入し、また加硫済タイヤか
らブラダーを取り出すために、主として、(a).スタンデ
ィグポスト方式、(b).バグウェル方式、(c).ローリング
方式、等の３通りの方法が行われている。2. Description of the Related Art Conventionally, when vulcanizing and molding an unvulcanized tire,
In order to insert the bladder into the unvulcanized tire and take out the bladder from the vulcanized tire, there are three main methods: (a) Standing post method, (b) Bagwell method, (c) Rolling method, etc. The street way is done.
【０００３】上記スタンディグポスト方式は、図５
（ａ）〜（ｄ）に示すように、タイヤ加硫終了後に、加
硫済タイヤＷｘ内に密着嵌合しているブラダー１の上端
部１ａを固定する上部クランプ部材２をシリンダーロッ
ド３に接続されたセンターポスト４を介して上昇させる
と共にブラダー１から内圧を除去して加硫済タイヤＷｘ
の内径よりも細くして、ブラダー１を加硫済タイヤＷｘ
の内壁から引き剥がし、加硫済タイヤＷをブラダー１か
ら取外す。The above-mentioned standing post system is shown in FIG.
As shown in (a) to (d), after the tire is vulcanized, the upper clamp member 2 for fixing the upper end portion 1a of the bladder 1 tightly fitted in the vulcanized tire Wx is connected to the cylinder rod 3. The vulcanized tire Wx by raising the pressure through the center post 4 and removing the internal pressure from the bladder 1.
Made smaller than the inner diameter of the bladder 1 and vulcanized tire Wx
The vulcanized tire W is removed from the bladder 1 by peeling it off from the inner wall.
【０００４】次いで、ブラダー１内に未加硫タイヤＷを
挿入し、ブラダー１内に加圧流体を供給して未加硫タイ
ヤＷに内圧をかけて加硫成形を行うものである。Next, the unvulcanized tire W is inserted into the bladder 1, and a pressurized fluid is supplied into the bladder 1 to apply an internal pressure to the unvulcanized tire W for vulcanization molding.
【０００５】また、上記バグウェル方式は、図６（ａ）
〜（ｄ）に示すように、タイヤ加硫終了後に、加硫済タ
イヤＷｘ内に密着嵌合しているブラダー１の上端部１ａ
を、加硫機上部に設置したシリンダー５によって図示し
ない下部モールド下部に設置した断面凹状の容器６内に
押し込むことによりブラダー１を加硫済タイヤＷｘの内
壁から引き剥がし、加硫済タイヤＷをブラダー１から取
外す。The Bagwell method is shown in FIG. 6 (a).
As shown in (d) to (d), after the tire vulcanization is completed, the upper end portion 1a of the bladder 1 that is closely fitted in the vulcanized tire Wx.
Is pushed into a container 6 having a concave cross-section installed at the lower part of a lower mold (not shown) by a cylinder 5 installed at the upper part of the vulcanizer, so that the bladder 1 is peeled off from the inner wall of the vulcanized tire Wx. Remove from bladder 1.
【０００６】次いで、未加硫タイヤＷを再び所定位置に
セットした後、容器６内に押し込まれていたブラダー１
に内圧を付与して未加硫タイヤＷ内に嵌合させ、更にブ
ラダー１内に加圧流体を供給して未加硫タイヤＷに内圧
をかけて加硫成形を行うものである。Next, after the unvulcanized tire W is set in a predetermined position again, the bladder 1 which has been pushed into the container 6
Internal pressure is applied to the unvulcanized tire W to fit the unvulcanized tire W, and a pressurized fluid is further supplied into the bladder 1 to apply an internal pressure to the unvulcanized tire W to perform vulcanization molding.
【０００７】更に、上記ローリング方式は、図７（ａ）
〜（ｄ）に示すように、スタンディグポスト方式とバグ
ウェル方式とを組合せた構成で、タイヤ加硫終了後に、
加硫済タイヤＷｘ内に密着嵌合しているブラダー１の上
端部１ａを固定する上部クランプ部材２をシリンダーロ
ッド３に接続されたセンターポスト４を下方に引き下
げ、図示しない下部モールド下部に設置した断面凹状の
容器６内に押し込むことによりブラダー１を加硫済タイ
ヤＷｘの内壁から引き剥がし、加硫済タイヤＷをブラダ
ー１から取外す。Further, the rolling method is shown in FIG.
As shown in (d) to (d), the structure is a combination of the standing post method and the Bagwell method.
The upper clamp member 2 for fixing the upper end portion 1a of the bladder 1 tightly fitted in the vulcanized tire Wx is pulled down to the center post 4 connected to the cylinder rod 3 and installed at the lower portion of the lower mold (not shown). The bladder 1 is peeled off from the inner wall of the vulcanized tire Wx by being pushed into the container 6 having a concave cross section, and the vulcanized tire W is removed from the bladder 1.
【０００８】次いで、未加硫タイヤＷを再び所定位置に
セットした後、容器６内に押し込まれていたブラダー１
に内圧を付与すると共に、センターポスト４により上昇
させて未加硫タイヤＷ内に嵌合させ、更にブラダー１内
に加圧流体を供給して未加硫タイヤＷに内圧をかけて加
硫成形を行うものである。Next, after setting the unvulcanized tire W again at a predetermined position, the bladder 1 which has been pushed into the container 6
Internal pressure is applied to the unvulcanized tire W by raising it by the center post 4 to fit it in the unvulcanized tire W, and further supplying a pressurized fluid into the bladder 1 to apply an internal pressure to the unvulcanized tire W to perform vulcanization molding. Is to do.
【０００９】更に、スタンディグポスト方式の変形例と
して、ブラダーとタイヤとを引き剥がす際と、ブラダー
を伸長して折り畳む際にブラダーに捻りを与えてブラダ
ーの挿入及び取出しを行うタイヤ加硫プレス装置が提案
されている（特開昭57-87350号公報) 。Further, as a modification of the standing post method, a tire vulcanizing press device for inserting and removing the bladder by twisting the bladder when the bladder and the tire are peeled off and when the bladder is extended and folded. Has been proposed (Japanese Patent Laid-Open No. 57-87350).
【００１０】[0010]
【発明が解決しようとする課題】然しながら、上記スタ
ンディグポスト方式は、加硫済タイヤＷｘ内に密着嵌合
しているブラダー１を引き剥がす際、センターポスト４
の上昇ストロークが長く、加硫装置が大型化する上に、
小径にしたブラダー１内に未加硫タイヤＷを挿入してブ
ラダー１に内圧を付与して膨張させながら未加硫タイヤ
Ｗ内に嵌合させる際、ブラダー１が未加硫タイヤＷから
はみ出したり、未加硫タイヤＷに対してセンターリング
を精度良く行うことが出来ず、ブラダー１の挿入作業を
効率良く行うことが出来ないと言う問題があった。However, in the above-mentioned standing post method, when the bladder 1 tightly fitted in the vulcanized tire Wx is peeled off, the center post 4 is removed.
The ascending stroke is long, the vulcanization equipment becomes large, and
When the unvulcanized tire W is inserted into the bladder 1 having a small diameter and the bladder 1 is fitted into the unvulcanized tire W while being expanded by applying an internal pressure, the bladder 1 may protrude from the unvulcanized tire W. However, there is a problem that the centering cannot be accurately performed on the unvulcanized tire W, and the insertion work of the bladder 1 cannot be performed efficiently.
【００１１】この発明はかかる従来の問題点に着目し、
未加硫タイヤに対するブラダーの挿入を確実に行うこと
が出来ると共に、ブラダーと未加硫タイヤとのセンター
リングを確実に行うことができ、更に薄肉ブラダーを使
用しても損傷する恐れが少ない上に、装置を大型化せず
にタイヤ加硫用ブラダーの挿入及び取出しを確実に行う
ことが出来るタイヤ加硫用ブラダーの挿入及び取出し制
御方法及びその装置を提供することを目的とするもので
ある。The present invention focuses on such conventional problems,
The bladder can be securely inserted into the unvulcanized tire, and the centering between the bladder and the unvulcanized tire can be reliably performed, and even if a thin-walled bladder is used, there is little risk of damage. An object of the present invention is to provide a method for controlling the insertion and removal of a tire vulcanization bladder, which can reliably insert and remove the tire vulcanization bladder without increasing the size of the device, and an apparatus thereof.
【００１２】[0012]
【課題を解決するための手段】この発明は上記目的を達
成するため、この発明のタイヤ加硫用ブラダーの挿入及
び取出し制御方法は、金型内に配設された未加硫タイヤ
の上下対称位置に、タイヤ内径以下に外径を捻り絞り込
んだセンターポスト付きのブラダーを挿入し、ブラダー
の捻りを除去しながらブラダーを膨張させてタイヤの加
硫成形を行い、タイヤ加硫終了後に、加硫済タイヤ内の
ブラダー内圧を所定の低圧力となるように制御して収縮
させると共に、前記ブラダーの上部クランプ部材を未加
硫タイヤの上面と加硫タイヤの上面との間の位置まで上
昇させ、ブラダー内圧を除去しながら上部クランプ部材
を所定の角度旋回させてブラダー外形に捻りを与えるこ
とによりタイヤ内壁面からブラダーを引き剥がし、更に
ブラダーをタイヤ内径部から取出し可能な外径まで捻り
絞り込んだ状態で加硫済タイヤをブラダーから取出すこ
とを要旨とするものである。In order to achieve the above object, the present invention provides a method for controlling the insertion and removal of a tire vulcanizing bladder, which is a vertical symmetry of an unvulcanized tire arranged in a mold. Insert a bladder with a center post whose outer diameter is twisted and narrowed below the inner diameter of the tire, expand the bladder while removing the twist of the bladder, and perform vulcanization molding of the tire, and after vulcanization of the tire, vulcanize While controlling and contracting the bladder internal pressure in the finished tire to a predetermined low pressure, the upper clamp member of the bladder is raised to a position between the upper surface of the unvulcanized tire and the upper surface of the vulcanized tire, While removing the internal pressure of the bladder, the upper clamp member is swung by a predetermined angle to twist the outer shape of the bladder, so that the bladder is peeled off from the inner wall surface of the tire. It is an summarized in that retrieving removable vulcanized tire in a state stopped down twist to the outer diameter from the diameter of the bladder.
【００１３】また、前記加硫済タイヤをブラダーから取
出した後、前記ブラダー外周に未加硫タイヤをタイヤの
成形に必要な位置まで挿入し、前記ブラダーの捻りを解
除しながらブラダーを膨張させてタイヤの成形を行うこ
とも可能であり、更にブラダー上部の上昇と捻りとを同
時に行うことで、ブラダーの折り畳みを容易に行うこと
も可能である。Further, after taking out the vulcanized tire from the bladder, an unvulcanized tire is inserted into the outer periphery of the bladder to a position necessary for tire molding, and the bladder is inflated while releasing the twist of the bladder. It is also possible to form the tire, and it is also possible to easily fold the bladder by simultaneously raising and twisting the upper portion of the bladder.
【００１４】このように、タイヤ加硫終了後に、加硫済
タイヤ内のブラダー内圧を除去して収縮させると共に、
前記ブラダーの上部クランプ部材を未加硫タイヤの上面
と加硫タイヤの上面との間の位置まで上昇させ、ブラダ
ー内圧を除去しながら上部クランプ部材を所定の角度旋
回させてブラダー外形に捻りを与えることによりタイヤ
内壁面からブラダーを引き剥がし、更にブラダーをタイ
ヤ内径部から取出し可能な外径まで捻り絞り込んだ状態
で加硫済タイヤをブラダーから取出すので、ブラダーに
傷を付けることなく加硫済タイヤを容易に取り出すこと
が出来、また加硫済タイヤをブラダーから取出した後、
前記ブラダー内に未加硫タイヤをタイヤの成形に必要な
位置まで挿入し、前記ブラダーの捻りを解除しながらブ
ラダーを膨張させてタイヤの成形を行うことも可能であ
り、更にブラダー上部の上昇と捻りとを同時に行うこと
で、ブラダーの折り畳みを容易に行うことが出来る。Thus, after the tire is vulcanized, the bladder internal pressure in the vulcanized tire is removed to shrink the tire, and
The upper clamp member of the bladder is raised to a position between the upper surface of the unvulcanized tire and the upper surface of the vulcanized tire, and the internal pressure of the bladder is removed, and the upper clamp member is rotated by a predetermined angle to give a twist to the outer shape of the bladder. By pulling the bladder off the inner wall surface of the tire, the vulcanized tire is taken out of the bladder with the bladder twisted and squeezed to an outer diameter that can be taken out from the tire inner diameter, so the vulcanized tire does not damage the bladder. Can be easily taken out, and after taking out the vulcanized tire from the bladder,
It is also possible to insert an unvulcanized tire into the bladder to a position necessary for forming a tire, inflate the bladder while releasing the twist of the bladder to form the tire, and further raise the bladder upper part. By simultaneously performing the twisting, the bladder can be easily folded.
【００１５】また、この発明のタイヤ加硫用ブラダーの
挿入及び取出し制御装置は、タイヤ金型中心部に配設さ
れた昇降可能なセンターポストに固定された上部クラン
プ部材に、上下端末部に開口部を備えた樽型状のブラダ
ーの上端部を固定し、下端部を下部クランプ部材に固定
して成るタイヤ加硫用ブラダーの挿入及び取出し制御装
置であって、前記ブラダーの上端部を、未加硫タイヤへ
の挿入時、またはタイヤ加硫終了時に、上部クランプ部
材を介して上昇及びタイヤ内径部から取出し可能な外径
まで捻り絞り込むブラダーの上昇・回転手段を設けたこ
とを要旨とするものである。Further, the tire vulcanization bladder insertion / extraction control device according to the present invention has an upper clamp member fixed to a vertically movable center post disposed at the center of the tire mold, and has openings at the upper and lower ends. A device for controlling the insertion and removal of a bladder for tire vulcanization, which comprises fixing the upper end of a barrel-shaped bladder having a section and fixing the lower end to a lower clamp member, wherein the upper end of the bladder is The gist of the present invention is to provide a bladder lifting / rotating means for ascending through the upper clamp member and twisting down to an outer diameter that can be taken out from the inner diameter of the tire when it is inserted into a vulcanized tire or after vulcanization of the tire is completed. Is.
【００１６】前記ブラダーの上昇・回転手段は、上部ク
ランプ部材を取付けたセンターポストを昇降させる昇降
シリンダーに回転駆動を接続したり、また加硫済タイヤ
の取出し装置に設けた回転駆動装置と上部クランプ部材
とを接続するように構成したものである。The lifting / rotating means of the bladder is connected with a rotary drive to an elevating cylinder for elevating a center post having an upper clamp member attached thereto, and a rotary drive device and an upper clamp provided in a vulcanized tire take-out device. It is configured to connect to a member.
【００１７】このように構成することで、装置全体が小
型化でき、タイヤ加硫用ブラダーの挿入及び取出しを確
実に行うことが出来るものである。With this configuration, the entire apparatus can be downsized, and the tire vulcanization bladder can be inserted and removed surely.
【００１８】[0018]
【発明の実施の形態】以下、添付図面に基づき、この発
明の実施形態を説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１９】なお、従来例と同一構成要素は、同一符号
を付して説明は省略する。The same components as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted.
【００２０】図１は、この発明にかかるタイヤ加硫用ブ
ラダーの挿入及び取出し制御方法を実施するための加硫
工程中のタイヤ加硫装置の断面図、図２は加硫終了後の
タイヤ取出し工程中のタイヤ加硫装置の断面図、図３は
ブラダーに未加硫タイヤＷを挿入する工程のタイヤ加硫
装置の断面図、図４はブラダーにガスまたは蒸気等の加
熱・加圧流体を供給してタイヤの加硫成形工程中のタイ
ヤ加硫装置の断面図を示している。FIG. 1 is a cross-sectional view of a tire vulcanizing apparatus during a vulcanization process for carrying out the method for controlling the insertion and removal of a tire vulcanizing bladder according to the present invention, and FIG. 2 is the tire unloading after vulcanization is completed. Sectional drawing of the tire vulcanizing apparatus during the process, FIG. 3 is a sectional view of the tire vulcanizing apparatus in the step of inserting the unvulcanized tire W into the bladder, and FIG. 4 is a heating / pressurizing fluid such as gas or steam in the bladder. FIG. 3 shows a cross-sectional view of the tire vulcanizing device during the tire vulcanization molding process during supply.
【００２１】図１はセクショナルモールドを用いたタイ
ヤ加硫装置の断面図であって、このタイヤ加硫装置は、
ベースプレート１１上に設置された下モールト１２と、
インナートッププレート１３に吊設された上モールド１
４との間に、ブラダー中心機構１５を中心として周方向
に複数に分割されたセクターモールド１６が配設してあ
る。FIG. 1 is a sectional view of a tire vulcanizing apparatus using a sectional mold.
A lower mold 12 installed on the base plate 11,
Upper mold 1 suspended from the inner top plate 13
4, a sector mold 16 is provided which is divided into a plurality of parts in the circumferential direction around the bladder center mechanism 15.
【００２２】前記複数に分割されたセクターモールド１
６は、トッププレート１７に取付けられたセクショナル
コンテナを構成するアウターリング１８を昇降させるこ
とにより、セグメント１９を介して水平放射方向に拡縮
スライドして未加硫タイヤＷのトレッドＷａに当接した
り離反するものである。The sector mold 1 divided into the plurality of parts
The reference numeral 6 elevates and lowers an outer ring 18 which constitutes a sectional container attached to the top plate 17 so that the outer ring 18 expands and contracts in the horizontal radial direction via a segment 19 to come into contact with or separate from the tread Wa of the unvulcanized tire W. To do.
【００２３】前記ブラダー中心機構１５は、スイング型
シリンダー等の上昇・回転手段２０に接続された上昇及
び回転可能なセンターポスト２１と、このセンターポス
ト２１の上端に固定された上部クランプ部材２２と、こ
の上部クランプ部材２２及び下部クランプ部材２３に固
定された樽型状のブラダー２４とで構成され、下部クラ
ンプ部材２３には、ブラダー２４内に加熱・加圧流体Ｑ
を供給，排出させる供給管２５ａと排気管２５ｂとが接
続されている。The bladder center mechanism 15 is a center post 21 which is connected to a raising / rotating means 20 such as a swing type cylinder and which can be raised and rotated, and an upper clamp member 22 fixed to the upper end of the center post 21. A barrel-shaped bladder 24 fixed to the upper clamp member 22 and the lower clamp member 23. The lower clamp member 23 includes a heating / pressurizing fluid Q in the bladder 24.
A supply pipe 25a for supplying and discharging the exhaust gas is connected to an exhaust pipe 25b.
【００２４】前記スイング型シリンダー等の上昇・回転
手段２０は、ストロークが300mm 前後で、スイング角度
（捻り角度）が１８０度の公知のシリンダーを使用し、
タイヤ加硫終了時に、ブラダー２４の内圧を安全上問題
のないレベル（一般的には、0.1MPa) まで下げて上モー
ルド１４及び複数のセクターモールド１６を開放し、こ
れと同時に上部クランプ部材２２を介してセンターポス
ト２１を上昇させる際、ブラダー２４を１８０度捻るよ
うにして上昇させるものである。As the lifting / rotating means 20 such as the swing type cylinder, a well-known cylinder having a stroke of about 300 mm and a swing angle (twist angle) of 180 degrees is used.
At the end of tire vulcanization, the internal pressure of the bladder 24 is lowered to a level where safety is not a problem (generally 0.1 MPa) to open the upper mold 14 and the plurality of sector molds 16, and at the same time, to fix the upper clamp member 22. When the center post 21 is raised via the bladder 24, the bladder 24 is twisted by 180 degrees to be raised.
【００２５】また、ブラダー２４を折り畳むに必要な捻
りトルクは、通常９８Ｎｍ以下で行うものである。The twisting torque required to fold the bladder 24 is usually 98 Nm or less.
【００２６】なお、上記上昇・回転手段２０としては、
スイング型シリンダー等に限定されず、センターポスト
２１を昇降させる昇降シリンダーと、ブラダー２４の上
端部を固定した上部クランプ部材２２を回転させる回転
駆動手段とを分離させて構成することも可能であり、こ
の回転駆動手段としては、後述する未加硫タイヤＷ及び
加硫済タイヤＷｘの搬入・搬出装置２６に駆動モータ２
７を取付け、この駆動モータ２７と歯車連結機構２８を
介して上部クランプ部材２２を１８０度回転させるよう
に構成することも可能である。The lifting / rotating means 20 is as follows.
The present invention is not limited to a swing type cylinder or the like, and an elevating cylinder that elevates and lowers the center post 21 and a rotation driving unit that rotates the upper clamp member 22 that fixes the upper end of the bladder 24 may be configured separately. As the rotation driving means, the drive motor 2 is provided in the loading / unloading device 26 for the unvulcanized tire W and the vulcanized tire Wx described later.
It is also possible to attach 7 and rotate the upper clamp member 22 by 180 degrees via the drive motor 27 and the gear coupling mechanism 28.
【００２７】次に、タイヤ加硫用ブラダーの挿入及び取
出し制御方法について説明する。図１に示すように、加
硫工程中では、ベースプレート１１上に設置された下モ
ールト１２と、インナートッププレート１３に吊設され
た上モールド１４及びセクターモールド１６を閉じた状
態で、未加硫タイヤＷ内に嵌合しているブラダー２４内
に所定圧力の加熱・加圧流体Ｑを供給して内圧をかけ、
未加硫タイヤＷをそれぞれの下モールト１２，上モール
ド１４及びセクターモールド１６に圧着させる。Next, a method for controlling the insertion and removal of the tire vulcanization bladder will be described. As shown in FIG. 1, during the vulcanization process, the lower mold 12 installed on the base plate 11 and the upper mold 14 and the sector mold 16 suspended from the inner top plate 13 are closed and unvulcanized. A heating / pressurizing fluid Q having a predetermined pressure is supplied into the bladder 24 fitted in the tire W to apply an internal pressure,
The unvulcanized tire W is pressure-bonded to the lower mold 12, the upper mold 14, and the sector mold 16.
【００２８】このようにして、所定時間加硫を行い、タ
イヤ加硫終了後にブラダー２４内の内圧を安全上問題の
ないレベル（一般的には、0.1MPa) まで下げた状態で、
セクターモールド１６及び下モールト１２，上モールド
１４を開放し、加硫済タイヤＷｘの取り出し工程に入
る。In this way, vulcanization was performed for a predetermined time, and after the tire vulcanization was completed, the internal pressure in the bladder 24 was lowered to a level (generally 0.1 MPa) at which there was no safety problem,
The sector mold 16, the lower mold 12, and the upper mold 14 are opened, and the vulcanized tire Wx is taken out.
【００２９】加硫済タイヤＷｘの取り出し工程は、図２
に示すように、スイング型シリンダー等の上昇・回転手
段２０を駆動させてセンターポスト２１を所定位置（ス
トローク300mm)まで上昇させると共に、上部クランプ部
材２２と共にブラダー２４を所定の角度（例えば、１８
０度）旋回させてブラダー外形に捻りを与えることによ
り加硫済タイヤＷｘの内壁面からブラダー２４を引き剥
がす。The process of taking out the vulcanized tire Wx is shown in FIG.
As shown in FIG. 5, the swing / cylinder lifting / rotating means 20 is driven to raise the center post 21 to a predetermined position (stroke 300 mm), and the upper clamp member 22 and the bladder 24 are moved to a predetermined angle (for example, 18 mm).
The bladder 24 is peeled from the inner wall surface of the vulcanized tire Wx by turning (0 degree) to give a twist to the outer shape of the bladder.
【００３０】前記センターポスト２１に取付けられた上
部クランプ部材２２の上昇位置としては、未加硫タイヤ
Ｗのシェーピングに必要な高さ以下（例えば、未加硫タ
イヤＷの上面）で、加硫タイヤＷｘの上面との間の位置
が好ましい。このように、ブラダー２４の上昇位置を規
定することで、ブラダー外形に捻りを与えた場合、整っ
た形状に折り畳むことが出来ると共に、ブラダー２４が
上下対称に作動する範囲とすることが出来る。The upper clamp member 22 attached to the center post 21 is at a raised position below the height required for shaping the unvulcanized tire W (for example, the upper surface of the unvulcanized tire W), The position between the upper surface of Wx is preferable. In this way, by defining the rising position of the bladder 24, when the bladder outer shape is twisted, it can be folded into a neat shape and the bladder 24 can be operated in a vertically symmetrical range.
【００３１】なお、ブラダー２４が収縮する過程の間
に、ブラダー２４に捻りトルクを掛け続けるとブラダー
２４は更に整った形状に折り畳むことが可能となり、ま
た真空装置を併用するとブラダー２４をより折り畳み易
くなる。また樽型上の通常のブラダー２４を畳むのに必
要な捻り角度は、上述したように１８０度程度であり、
通常のブラダー２４を畳むのに必要な捻りトルクは、９
８Ｎ・ｍ以下である。It is possible to fold the bladder 24 into a more neat shape by continuously applying a twisting torque to the bladder 24 during the process of contracting the bladder 24. Further, when the bladder 24 is used together, the bladder 24 can be folded more easily. Become. Also, the twist angle required to fold the ordinary barrel-shaped bladder 24 is about 180 degrees as described above,
The twisting torque required to fold the normal bladder 24 is 9
It is 8 N · m or less.
【００３２】このようにして、ブラダー２４を加硫済タ
イヤＷｘの内径部から取出し可能な外径まで捻り絞り込
んだ状態で、搬入・搬出装置２６に吊設した複数本（一
般的には周方向に３本）のフック爪２６ａを加硫済タイ
ヤＷｘの上部まで搬入し、フック爪２６ａで加硫済タイ
ヤＷｘのビード部Ｗｚを内側から引っ掛けて吊り上げ、
次工程へ搬出するものである。In this manner, a plurality of bladders 24 suspended in the loading / unloading device 26 (generally, in the circumferential direction) with the bladder 24 twisted and squeezed from the inner diameter of the vulcanized tire Wx to the outer diameter that can be taken out. 3) hook claws 26a are carried in to the upper portion of the vulcanized tire Wx, and the bead portion Wz of the vulcanized tire Wx is hooked from the inside by the hook claws 26a and lifted.
It is carried out to the next process.
【００３３】また、上記のように捻りを与えたブラダー
２４に対して未加硫タイヤＷを挿入する工程では、図３
に示すように、成形工程で成形されたグリーンタイヤＷ
を搬入・搬出装置２６のフック爪２６ａで吊り下げ保持
した状態でブラダー２４を中心としてタイヤ成形に必要
な位置（シェーピング位置）まで挿入すると共に、下モ
ールト１２上に載置させる。In addition, in the step of inserting the unvulcanized tire W into the bladder 24 which has been twisted as described above, FIG.
As shown in, the green tire W molded in the molding process
While being suspended and held by the hook claws 26a of the loading / unloading device 26, the bladder 24 is inserted to a position required for tire molding (shaping position) and is placed on the lower mold 12.
【００３４】そして、図４に示すように、捻りを与えた
ブラダー２４内に加熱・加圧流体Ｑの供給管２５ａから
所定圧力の加熱・加圧流体Ｑを導入すると共に、ブラダ
ー２４の捻りを解除しながらブラダー２４を膨張させて
タイヤの成形を行うものである。この時、ブラダー２４
の高さが未加硫タイヤＷの成形に必要な高さに近似して
いるので容易に適正な成形を行うことが出来、またブラ
ダー２４は上下対称に動作するため、ブラダー２４と未
加硫タイヤＷとのセンターリングが確実に行われる。Then, as shown in FIG. 4, the heating / pressurizing fluid Q having a predetermined pressure is introduced from the heating / pressurizing fluid Q supply pipe 25a into the twisted bladder 24, and the bladder 24 is twisted. The tire is molded by expanding the bladder 24 while releasing it. At this time, the bladder 24
Since the height of the bladder 24 is close to the height required for molding the unvulcanized tire W, proper molding can be easily performed. Further, since the bladder 24 operates vertically symmetrically, the bladder 24 and the unvulcanized tire are not vulcanized. Centering with the tire W is reliably performed.
【００３５】更に、ブラダー２４内に所定圧力の加熱・
加圧流体Ｑを導入すると、特に上昇・回転手段２０を逆
転駆動させてセンターポスト２１を強制的に回転させる
ことなくブラダー２４の膨張に伴いブラダー２４の捻り
は自動的に解消され、ブラダー２４と未加硫タイヤＷと
は正しくが合体するものである。Further, the bladder 24 is heated to a predetermined pressure.
When the pressurized fluid Q is introduced, the twist of the bladder 24 is automatically canceled with the expansion of the bladder 24 without forcibly rotating the center post 21 by driving the ascending / rotating means 20 in the reverse direction. The unvulcanized tire W is one that is correctly combined.
【００３６】[0036]
【発明の効果】この発明は上記のように構成したので、
以下のような優れた効果を奏するものである。
(a).ブラダーの挿入時に滑りを必要としないので、未加
硫タイヤに対するブラダーの挿入を確実に行うことが出
来る。
(b).ブラダーは上下対称に作動するので、ブラダーと未
加硫タイヤとのセンターリングを確実に行うことができ
る。
(c).ブラダーは過度に伸展することがないので、1mm 以
下の薄肉ブラダーでも損傷する恐れが少なく、ブラダー
の挿入, 取出しを行うことが出来る。
(d).タイヤ加硫用ブラダーの挿入及び取出し制御装置
は、装置が大型化せずにタイヤ加硫用ブラダーの挿入及
び取出しを確実に行うことが出来る。Since the present invention is constructed as described above,
It has the following excellent effects. (a). Since sliding is not required when inserting the bladder, the bladder can be surely inserted into the unvulcanized tire. (b). Since the bladder operates vertically symmetrically, it is possible to reliably perform centering between the bladder and the unvulcanized tire. (c). Since the bladder does not extend excessively, even a thin walled bladder with a thickness of 1 mm or less is less likely to be damaged, and the bladder can be inserted and removed. (d). The tire vulcanization bladder insertion and removal control device can reliably insert and remove the tire vulcanization bladder without increasing the size of the device.
【図１】この発明にかかるタイヤ加硫用ブラダーの挿入
及び取出し制御方法を実施するための加硫工程中のタイ
ヤ加硫装置の断面図である。FIG. 1 is a cross-sectional view of a tire vulcanizing apparatus during a vulcanizing step for carrying out a method for controlling insertion and removal of a tire vulcanizing bladder according to the present invention.
【図２】加硫終了後のタイヤ取出し工程中のタイヤ加硫
装置の断面図である。FIG. 2 is a cross-sectional view of a tire vulcanizing apparatus during a tire removing process after completion of vulcanization.
【図３】ブラダーに未加硫タイヤを挿入する工程のタイ
ヤ加硫装置の断面図である。FIG. 3 is a cross-sectional view of a tire vulcanizing device in a step of inserting an unvulcanized tire into a bladder.
【図４】タイヤの加硫成形工程中のタイヤ加硫装置の断
面図である。FIG. 4 is a cross-sectional view of a tire vulcanizing apparatus during a tire vulcanization molding process.
【図５】（ａ）〜（ｄ）は、未加硫タイヤにブラダーを
挿入し、また加硫済タイヤからブラダーを取り出す従来
のスタンディグポスト方式の工程説明図である。5A to 5D are process explanatory views of a conventional standing post method in which a bladder is inserted into an unvulcanized tire and the bladder is taken out from the vulcanized tire.
【図６】（ａ）〜（ｄ）は、未加硫タイヤにブラダーを
挿入し、また加硫済タイヤからブラダーを取り出す従来
のバグウェル方式の工程説明図である。6 (a) to 6 (d) are process explanatory views of a conventional Bagwell system in which a bladder is inserted into an unvulcanized tire and the bladder is taken out from the vulcanized tire.
【図７】（ａ）〜（ｄ）は、未加硫タイヤにブラダーを
挿入し、また加硫済タイヤからブラダーを取り出す従来
のローリング方式の工程説明図である。7 (a) to 7 (d) are process explanatory diagrams of a conventional rolling system in which a bladder is inserted into an unvulcanized tire and the bladder is taken out from the vulcanized tire.
１ ブラダー １ａ ブラダーの上端部
２ 上部クランプ部材 ３ シリンダーロッド
４ センターポスト ５ シリンダー
１１ ベースプレート １２ 下モールト
１３ インナートッププレート １４ 上モールド
１５ ブラダー中心機構 １６ セクターモール
ド
１７ トッププレート １８ アウターリング
１９ セグメント ２０ 上昇・回転手段
２１ センターポスト ２２ 上部クランプ部
材
２３ 下部クランプ部材 ２４ ブラダー
２５ａ 供給管 ２５ｂ 排気管
２６ 搬入・搬出装置 ２６ａ フック爪
２７ 駆動モータ ２８ 歯車連結機構
Ｗ 未加硫タイヤ Ｗｘ 加硫済タイヤ
Ｑ 加熱・加圧流体 Ｗｚ ビード部1 Bladder 1a Upper end of bladder 2 Upper clamp member 3 Cylinder rod 4 Center post 5 Cylinder 11 Base plate 12 Lower mold 13 Inner top plate 14 Upper mold 15 Bladder center mechanism 16 Sector mold 17 Top plate 18 Outer ring 19 Segment 20 Rise / rotation Means 21 Center post 22 Upper clamp member 23 Lower clamp member 24 Bladder 25a Supply pipe 25b Exhaust pipe 26 Loading / unloading device 26a Hook pawl 27 Drive motor 28 Gear coupling mechanism W Unvulcanized tire Wx Vulcanized tire Q Heating / pressurizing Fluid Wz bead
Claims (6)
加硫タイヤにセンターポスト付きのブラダーを挿入し、
ブラダーを膨張させて未加硫タイヤに内圧を付与した状
態で加硫を行い、タイヤ加硫成形後に、ブラダーを収縮
させて加硫済タイヤを取出すタイヤ加硫用ブラダーの挿
入及び取出し制御方法において、 前記金型内に配設された未加硫タイヤの上下対称位置
に、タイヤ内径以下に外径を捻り絞り込んだセンターポ
スト付きのブラダーを挿入し、ブラダーの捻りを除去し
ながらブラダーを膨張させてタイヤの加硫成形を行い、
タイヤ加硫終了後に、加硫済タイヤ内のブラダー内圧を
所定の低圧力となるように制御して収縮させると共に、
前記ブラダーの上部クランプ部材を未加硫タイヤの上面
と加硫タイヤの上面との間の位置まで上昇させ、ブラダ
ー内圧を除去しながら上部クランプ部材を所定の角度旋
回させてブラダー外形に捻りを与えることによりタイヤ
内壁面からブラダーを引き剥がし、更にブラダーをタイ
ヤ内径部から取出し可能な外径まで捻り絞り込んだ状態
で加硫済タイヤをブラダーから取出すタイヤ加硫用ブラ
ダーの挿入及び取出し制御方法。1. A bladder with a center post is inserted into an unvulcanized tire disposed in a mold during tire vulcanization,
Vulcanization is performed with the bladder expanded and internal pressure applied to the unvulcanized tire, and after tire vulcanization molding, the bladder is contracted to remove the vulcanized tire. Inserting a bladder with a center post whose outer diameter is twisted and narrowed to the tire inner diameter or less at vertically symmetrical positions of the unvulcanized tire arranged in the mold, and expanding the bladder while removing the twist of the bladder. Vulcanization molding of tires,
After completion of tire vulcanization, while controlling the bladder internal pressure in the vulcanized tire to be a predetermined low pressure and contracting,
The upper clamp member of the bladder is raised to a position between the upper surface of the unvulcanized tire and the upper surface of the vulcanized tire, and the internal pressure of the bladder is removed, and the upper clamp member is rotated by a predetermined angle to give a twist to the outer shape of the bladder. A method for controlling the insertion and removal of a tire vulcanization bladder, in which the bladder is peeled off from the inner wall surface of the tire, and the vulcanized tire is taken out from the bladder while the bladder is twisted and narrowed down to an outer diameter that can be taken out from the tire inner diameter portion.
た後、前記ブラダー外周に未加硫タイヤをタイヤの成形
に必要な位置まで挿入し、前記ブラダーの捻りを解除し
ながらブラダーを膨張させてタイヤの成形を行う請求項
１に記載のタイヤ加硫用ブラダーの挿入及び取出し制御
方法。2. After removing the vulcanized tire from the bladder, an unvulcanized tire is inserted into the outer periphery of the bladder to a position required for tire molding, and the bladder is inflated while releasing the twist of the bladder. The method for controlling the insertion and removal of a tire vulcanization bladder according to claim 1, wherein the tire is molded.
に行う請求項１または２に記載のタイヤ加硫用ブラダー
の挿入及び取出し制御方法。3. The method for controlling the insertion and removal of a tire vulcanization bladder according to claim 1, wherein the upper part of the bladder and the twisting are simultaneously performed.
なセンターポストに固定された上部クランプ部材に、上
下端末部に開口部を備えた樽型状のブラダーの上端部を
固定し、下端部を下部クランプ部材に固定して成るタイ
ヤ加硫用ブラダーの挿入及び取出し制御装置であって、 前記ブラダーの上端部を、未加硫タイヤへの挿入時、ま
たはタイヤ加硫終了時に、上部クランプ部材を介して上
昇及びタイヤ内径部から取出し可能な外径まで捻り絞り
込むブラダーの上昇・回転手段を設けて成るタイヤ加硫
用ブラダーの挿入及び取出し制御装置。4. An upper clamp member fixed to a vertically movable center post arranged in the center of a tire mold is fixed to an upper end of a barrel-shaped bladder having openings at upper and lower ends. A device for controlling the insertion and removal of a tire vulcanization bladder having its lower end fixed to a lower clamp member, wherein the upper end of the bladder is inserted into an unvulcanized tire, or at the end of tire vulcanization. An insertion and removal control device for a tire vulcanization bladder, which is provided with lifting and rotating means for a bladder that is raised through a clamp member and twists and narrows down to an outer diameter that can be taken out from the tire inner diameter portion.
クランプ部材を取付けたセンターポストを昇降させる昇
降シリンダーに回転駆動を接続した請求項４に記載のタ
イヤ加硫用ブラダーの挿入及び取出し制御装置。5. The device for controlling insertion and removal of a bladder for tire vulcanization according to claim 4, wherein the raising / rotating means of the bladder has a rotary drive connected to an elevating cylinder for elevating a center post having an upper clamp member attached thereto. .
ヤの取出し装置に設けた回転駆動装置と上部クランプ部
材とを接続するように構成した請求項４に記載のタイヤ
加硫用ブラダーの挿入及び取出し制御装置。6. The bladder for tire vulcanization according to claim 4, wherein the rotating means of the bladder is configured to connect a rotation drive device provided in a device for taking out a vulcanized tire and an upper clamp member. And take-out control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002019990A JP3878856B2 (en) | 2002-01-29 | 2002-01-29 | Tire vulcanization bladder insertion and removal control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002019990A JP3878856B2 (en) | 2002-01-29 | 2002-01-29 | Tire vulcanization bladder insertion and removal control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003220613A true JP2003220613A (en) | 2003-08-05 |
| JP3878856B2 JP3878856B2 (en) | 2007-02-07 |
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ID=27743628
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|---|---|---|---|
| JP2002019990A Expired - Fee Related JP3878856B2 (en) | 2002-01-29 | 2002-01-29 | Tire vulcanization bladder insertion and removal control device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008094028A (en) * | 2006-10-13 | 2008-04-24 | Yokohama Rubber Co Ltd:The | Method and apparatus for vulcanizing pneumatic tire |
| JP2015104906A (en) * | 2013-12-02 | 2015-06-08 | 住友ゴム工業株式会社 | Tire vulcanizing machine and tire production method using the same |
| JP2017087593A (en) * | 2015-11-11 | 2017-05-25 | 東洋ゴム工業株式会社 | Method for vulcanizing tire |
-
2002
- 2002-01-29 JP JP2002019990A patent/JP3878856B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008094028A (en) * | 2006-10-13 | 2008-04-24 | Yokohama Rubber Co Ltd:The | Method and apparatus for vulcanizing pneumatic tire |
| JP2015104906A (en) * | 2013-12-02 | 2015-06-08 | 住友ゴム工業株式会社 | Tire vulcanizing machine and tire production method using the same |
| JP2017087593A (en) * | 2015-11-11 | 2017-05-25 | 東洋ゴム工業株式会社 | Method for vulcanizing tire |
Also Published As
| Publication number | Publication date |
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| JP3878856B2 (en) | 2007-02-07 |
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