JP2005246890A - Method for reversing pneumatic tire and apparatus for reversing it - Google Patents

Method for reversing pneumatic tire and apparatus for reversing it Download PDF

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JP2005246890A
JP2005246890A JP2004063442A JP2004063442A JP2005246890A JP 2005246890 A JP2005246890 A JP 2005246890A JP 2004063442 A JP2004063442 A JP 2004063442A JP 2004063442 A JP2004063442 A JP 2004063442A JP 2005246890 A JP2005246890 A JP 2005246890A
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green tire
reversing
tire
reversing drum
drum
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JP4904666B2 (en
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Takeshi Maekawa
剛 前川
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Yokohama Rubber Co Ltd
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Yokohama Rubber Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/0016—Handling tyres or parts thereof, e.g. supplying, storing, conveying
    • B29D2030/0022—Handling green tyres, e.g. transferring or storing between tyre manufacturing steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/0016—Handling tyres or parts thereof, e.g. supplying, storing, conveying
    • B29D2030/0027—Handling cured tyres, e.g. transferring or storing after vulcanizing

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for reversing a pneumatic tire and an apparatus for reversing it capable of changing a posture of a green tire by a simple installation, safely, and without deforming the green tire even for the green tire with a heavy weight, and improving productivity of the tire. <P>SOLUTION: In this reversing apparatus 19, a hollow cylindrical reversing drum 25 in which a green tire storing part 24 is formed by cutting out a part in the circumference is placed so as to be revolved on two parallel freely rotatable roll-like guide members 23a and 23b constructed on a pair of rail-like base members 22. The reversing drum 25 forms the green tire storing part 24 by cutting out approximately 1/4 of the circumference. On the inner wall face of this green tire storing part 24, upper and lower supporting apparatus 26a and 26b removably supporting upper and lower terminal parts of a bladder unit 16 inserted into the inner diameter part of an inflated primary green tire Wa, are provided. A revolution driving means 27 such as a pair of hydraulic cylinders for revolving the reversing drum 25 is provided on both side faces of the base members 22 and the reversing drum 25. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

この発明は、空気入りタイヤの反転方法及びその反転装置に係わり、更に詳しくは建設車両等で使用される大型で、大重量の空気入りラジアルタイヤを製造工程中に反転する反転方法及び反転装置に関するものである。   The present invention relates to a pneumatic tire reversing method and a reversing device, and more particularly to a reversing method and a reversing device for reversing a large and heavy pneumatic radial tire used in a construction vehicle or the like during a manufacturing process. Is.

近年、ＯＲタイヤ（Off the Road Tire)といわれる建設車両用の大型タイヤは、車両の大型化・高速化によりラジアル構造にしたタイヤの生産が増加している。   In recent years, large tires for construction vehicles, called OR tires (Off the Road Tire), have been increasing in production of radial tires due to the increase in size and speed of vehicles.

このようなラジアルタイヤの製造方法は、まず第１段成形機によりカーカスプライやビードコアなどのタイヤ骨格をなす１次グリーンタイヤ（未加硫タイヤ）を成形し、次いで１次グリーンタイヤを第２段成形機のブラダー機構により所定の外径になるまでインフレートして、その外周にベルトとトレッドゴムを巻き付ける成形を行なって完成グリーンタイヤに成形し、更にこの完成グリーンタイヤを加硫ブラダーによりインフレートして、加硫機で加硫成形するように成形している。   In such a radial tire manufacturing method, a primary green tire (unvulcanized tire) forming a tire skeleton such as a carcass ply or a bead core is first molded by a first stage molding machine, and then the primary green tire is second stage. Inflate until the specified outer diameter is achieved by the bladder mechanism of the molding machine, form a belt and tread rubber around the outer periphery and form a finished green tire, and then inflate the finished green tire with a vulcanizing bladder. Then, it is molded so as to be vulcanized with a vulcanizer.

従来、空気入りラジアルタイヤの製造方法の改良として、第２段成形機のインフレート用ブラダーと加硫機のインフレート用ブラダーとを兼用するようにした技術思想も提案されている（例えば、特許文献１）。   Conventionally, as an improvement of a method for manufacturing a pneumatic radial tire, a technical idea has been proposed in which an inflation bladder for a second-stage molding machine and an inflation bladder for a vulcanizer are combined (for example, patents). Reference 1).

ところで、上記のようなラジアルタイヤの製造工程において、第１段成形機で成形されたグリーンタイヤにブラダー機構を組み込んでインフレートした横置き状態（水平状態）の１次グリーンタイヤを第２段成形機の成形主軸に挿入させるために、１次グリーンタイヤを鉛直状態にする必要があり、また第２段成形機で２次グリーンタイヤを成形後、２次グリーンタイヤとこれに組み込まれたブラダー機構を加硫機のモールドに挿入する場合には、再び２次グリーンタイヤを鉛直状態から水平な横置きの姿勢にする必要があり、各成形工程においてグリーンタイヤの姿勢を変化させる必要があった。   By the way, in the radial tire manufacturing process as described above, the primary green tire in a horizontal state (horizontal state) inflated by incorporating a bladder mechanism into the green tire molded by the first stage molding machine is second stage molded. The primary green tire needs to be in a vertical state to be inserted into the molding spindle of the machine, and after the secondary green tire is molded by the second stage molding machine, the secondary green tire and the bladder mechanism incorporated therein In the case of inserting the green tire into the mold of the vulcanizer, the secondary green tire needs to be changed from the vertical state to the horizontal posture, and the posture of the green tire needs to be changed in each molding step.

然しながら、建設車両用の大型タイヤのグリーンタイヤとブラダー機構との総重量と、タイヤサイズにもよるが、１ton 〜１０ton 程度となり、安全に、かつグリーンタイヤを変形させずに姿勢を変化させるには、クレーン等の大型設備や、多くの手間と時間がかかり、生産性の向上を図ることが出来ないと言う問題があった。
特開昭４９−１５７７６号公報 However, depending on the total weight of the green tires and bladder mechanism of large tires for construction vehicles and the tire size, it will be about 1 ton to 10 tons, and to change the posture safely and without deforming the green tire There are problems such as large equipment such as cranes, and a lot of labor and time, which makes it impossible to improve productivity.
Japanese Patent Laid-Open No. 49-15776

この発明はかかる従来の問題点に着目し、大重量のグリーンタイヤであっても、簡単な設備により、安全に、かつグリーンタイヤを変形させずに姿勢を変化させることが出来ると共に、タイヤの生産性を向上させることが出来る空気入りタイヤの反転方法及びその反転装置を提供することを目的とするものである。   The present invention pays attention to such conventional problems, and even with a heavy weight green tire, it is possible to change the posture safely and without deforming the green tire with simple equipment, and the production of the tire. It is an object of the present invention to provide a pneumatic tire reversing method and a reversing device that can improve the performance.

この発明は上記目的を達成するため、この発明の空気入りタイヤの反転方法は、１次グリーンタイヤを横置き状態で搬送装置により反転ドラムの近傍まで搬送し、前記搬送装置上のグリーンタイヤを反転ドラムのグリーンタイヤ収容部に水平状態で移載すると共に、グリーンタイヤの内径部に挿入されたブラダーユニットの上下端末部を支持装置により支持し、この状態で前記反転ドラムを旋回駆動手段により９０度旋回させてグリーンタイヤを鉛直状態にし、この状態からグリーンタイヤを移載装置を介して成形機の主軸に装着することを要旨とするものである。   In order to achieve the above object, the pneumatic tire reversal method of the present invention is such that the primary green tire is transported to the vicinity of the reversal drum by the transport device in the horizontal state, and the green tire on the transport device is reversed. The drum unit is transferred to the green tire housing portion in a horizontal state, and the upper and lower end portions of the bladder unit inserted into the inner diameter portion of the green tire are supported by a support device. The gist is to turn the green tire to a vertical state and mount the green tire on the main shaft of the molding machine via the transfer device from this state.

また、この発明の空気入りタイヤの反転装置は、ベース部材に架設した二本の平行な回転自在なガイド部材上に、周方向の一部を切欠してグリーンタイヤ収容部を形成した円筒状の反転ドラムを旋回可能に載置し、前記ベース部材と反転ドラム側面とに、反転ドラムの旋回駆動手段を設け、前記反転ドラムのグリーンタイヤ収容部の内壁面に、インフレートされたグリーンタイヤの内径部に挿入されたブラダーユニットを着脱可能に支持する支持装置を設けたことを要旨とするものである。   Further, the pneumatic tire reversing device of the present invention is a cylindrical shape in which a green tire accommodating portion is formed by cutting out a part in the circumferential direction on two parallel rotatable guide members installed on a base member. A reversing drum is mounted so as to be capable of swiveling, and a reversing drum swivel driving means is provided on the base member and the reversing drum side surface. The gist of the present invention is to provide a support device that detachably supports the bladder unit inserted into the section.

ここで、前記反転ドラムの内部に、反転ドラムの外郭をガイド部材上に押え支持する押え部材を設け、また前記反転ドラムの側面に、反転ドラムの旋回位置を規制する規制手段を設けるものである。   Here, a pressing member for pressing and supporting the outer periphery of the reversing drum on the guide member is provided inside the reversing drum, and a regulating means for regulating the turning position of the reversing drum is provided on the side surface of the reversing drum. .

このように、タイヤの生産工程において、簡単な設備により、安全に、かつグリーンタイヤを変形させずに姿勢を変化させることが出来ると共に、タイヤの生産性を向上させることが出来るものである。   Thus, in the tire production process, the posture can be changed safely and without deforming the green tire with simple equipment, and the productivity of the tire can be improved.

この発明の空気入りタイヤの反転方法は、１次グリーンタイヤを横置き状態で搬送装置により反転ドラムの近傍まで搬送し、前記搬送装置上のグリーンタイヤを反転ドラムのグリーンタイヤ収容部に水平状態で移載すると共に、グリーンタイヤの内径部に挿入されたブラダーユニットの上下端末部を支持装置により支持し、この状態で前記反転ドラムを旋回駆動手段により９０度旋回させてグリーンタイヤを鉛直状態にし、この状態からグリーンタイヤを移載装置を介して成形機の主軸に装着するので、大重量のグリーンタイヤであっても、安全に、かつグリーンタイヤを変形させずに姿勢を変化させることが出来る効果がある。   In the pneumatic tire reversal method according to the present invention, the primary green tire is transported to the vicinity of the reversal drum by the transport device in the horizontal state, and the green tire on the transport device is horizontally placed in the green tire housing portion of the reversal drum. The upper and lower end portions of the bladder unit inserted into the inner diameter portion of the green tire are supported by a support device, and the reversing drum is turned 90 degrees by the turning drive means in this state to bring the green tire into a vertical state. Since the green tire is mounted on the main shaft of the molding machine via the transfer device from this state, the effect of being able to change the posture safely and without deforming the green tire even with a heavy weight green tire There is.

また、この発明の空気入りタイヤの反転装置は、ベース部材に架設した二本の平行な回転自在なガイド部材上に、周方向の一部を切欠してグリーンタイヤ収容部を形成した円筒状の反転ドラムを旋回可能に載置し、前記ベース部材と反転ドラム側面とに、反転ドラムの旋回駆動手段を設け、前記反転ドラムのグリーンタイヤ収容部の内壁面に、インフレートされたグリーンタイヤの内径部に挿入されたブラダーユニットを着脱可能に支持する支持装置を設けたので、簡単な構成で、安価な設備により、安全に、かつグリーンタイヤを変形させずに姿勢を変化させることが出来ると共に、タイヤの生産性を向上させることが出来る効果がある。   Further, the pneumatic tire reversing device of the present invention is a cylindrical shape in which a green tire accommodating portion is formed by cutting out a part in the circumferential direction on two parallel rotatable guide members installed on a base member. A reversing drum is mounted so as to be capable of swiveling, and a reversing drum swivel driving means is provided on the base member and the reversing drum side surface. Since the support device that removably supports the bladder unit inserted in the part is provided, the posture can be changed safely and without deforming the green tire with a simple configuration and inexpensive equipment. There is an effect that the productivity of the tire can be improved.

特に、大重量のタイヤ生産工程において有効に使用出来る効果がある。また、機構そのものと、制御系が簡単で済むことから、信頼性とコストダウンを図ることが出来る効果がある。   In particular, there is an effect that it can be effectively used in the production process of heavy tires. Further, since the mechanism itself and the control system are simple, there is an effect that reliability and cost reduction can be achieved.

以下、添付図面に基づき、この発明の実施形態を説明する。
図１（ａ）〜（ｌ）は、この発明のタイヤの反転方法を実施した例えば、建設車両用の空気入りラジアルタイヤの製造工程の概略構成図を示し、この製造工程において、図１（ａ）は第１段成形機１１の成形ドラム１２において１次グリーンタイヤＷａを製造する工程、図１（ｂ）は第１段成形機１１の成形ドラム１２から取外した１次グリーンタイヤＷａにベルト・トレッド等を貼付けない状態で１次グリーンタイヤＷａを搬送する工程、図１（ｃ）は１次グリーンタイヤＷａの内径部に、上型クランプリング１３と下型クランプリング１４とにクランプされた筒状のブラダー１５を備えたブラダーユニット１６を装着して、ブラダーユニット１６により１次グリーンタイヤＷａのビード間隔をＢ1 にし、ブラダー１５に圧縮空気等の加圧流体を導入して１次グリーンタイヤＷａをインフレートし、１次グリーンタイヤＷａの外径をＤにする。 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
1 (a) to 1 (l) show a schematic configuration diagram of a manufacturing process of a pneumatic radial tire for, for example, a construction vehicle in which the tire reversing method of the present invention is implemented. In this manufacturing process, FIG. ) Is a process of manufacturing the primary green tire Wa in the molding drum 12 of the first stage molding machine 11, and FIG. 1B is a diagram showing a belt belt attached to the primary green tire Wa removed from the molding drum 12 of the first stage molding machine 11. The process of transporting the primary green tire Wa without attaching a tread or the like. FIG. 1C shows a cylinder clamped by the upper mold clamp ring 13 and the lower mold clamp ring 14 on the inner diameter portion of the primary green tire Wa. wearing the bladder unit 16 having a Jo bladder 15, the bladder unit 16 to the bead spacing of the primary green tire Wa to B 1, pressure such as compressed air to the bladders 15 By introducing the body to inflate the primary green tire Wa, to the outer diameter of the primary green tire Wa to D.

図１（ｄ）は、前記１次グリーンタイヤＷａをブラダーユニット１６によりビード間隔Ｂ2 にし、ブラダー１５に圧縮空気等の加圧流体を導入して１次グリーンタイヤＷａをインフレートし、この時、第２段成形機１７においてベルト・トレッド等を貼付けるに必要な外径Ｄ1 に保持させ、所定のビード間隔Ｂ2 に保持した１次グリーンタイヤＷａを台車等の搬送装置１８により１次グリーンタイヤＷａの反転装置１９の位置まで搬送する工程である。 FIG. 1D shows that the primary green tire Wa is set to a bead interval B 2 by the bladder unit 16 and a pressurized fluid such as compressed air is introduced into the bladder 15 to inflate the primary green tire Wa. , it is held by the outer diameter D 1 needed a belt tread or the like sticking Keru in the second stage molding machine 17, the primary by the transport device 18 of the carriage such as a primary green tire Wa held in a predetermined bead spacing B 2 It is a process of conveying to the position of the reversing device 19 of the green tire Wa.

図１（ｅ）は、１次グリーンタイヤＷａを反転装置１９に水平に移載する工程、図１（ｆ）は反転装置１９により水平状態の１次グリーンタイヤＷａを鉛直状態に９０°旋回させる工程、図１（ｇ）は垂直状態にした１次グリーンタイヤＷａをブラダーユニット１６と共に第２段成形機１７の主軸１７ａに取付け、１次グリーンタイヤＷａにベルト・トレッドＴを巻付けて２次グリーンタイヤＷｂを成形する工程、図１（ｈ）は成形された２次グリーンタイヤＷｂを再び前記反転装置１９に垂直向きに取付ける工程、図１（ｉ）は２次グリーンタイヤＷｂを反転装置１９により水平に９０°旋回させる工程、図１（ｊ）は２次グリーンタイヤＷｂを反転装置１９から台車等の搬送装置２０に移載する工程を示している。   FIG. 1 (e) shows a process of horizontally transferring the primary green tire Wa to the reversing device 19, and FIG. 1 (f) shows a turn of the primary green tire Wa in the horizontal state by 90 ° to the vertical state by the reversing device 19. Process, FIG. 1 (g) shows that the primary green tire Wa in a vertical state is attached to the main shaft 17a of the second-stage molding machine 17 together with the bladder unit 16, and the belt tread T is wound around the primary green tire Wa and the secondary tire is wound. FIG. 1 (h) shows a step of forming the green tire Wb, FIG. 1 (h) shows a step of attaching the molded secondary green tire Wb again to the reversing device 19 in a vertical direction, and FIG. 1 (i) shows a step of forming the secondary green tire Wb. 1 (j) shows a step of transferring the secondary green tire Wb from the reversing device 19 to the conveying device 20 such as a carriage.

図１（ｋ）は、２次グリーンタイヤＷｂをブラダーユニット１６によりビード間隔Ｂ3 して、２次グリーンタイヤＷｂを加硫時の外径Ｄ2 となるように圧縮空気等の加圧流体を導入してインフレートする工程、図１（ｌ）は加硫時の外径Ｄ2 に成形した２次グリーンタイヤＷｂをブラダーユニット１６を装着した状態で加硫機の加硫モールド２１に投入し、２次グリーンタイヤＷｂは、インフレート状態を維持しながら加硫モールド２１内で加熱・加圧されて硬化し、空気入りラジアルタイヤを完成させるものである。 Figure 1 (k), the secondary green tire Wb and the bead spacing B 3 by bladder unit 16, a pressurized fluid such as compressed air to the secondary green tire Wb become the outer diameter D 2 of the vulcanization Introducing and inflating, FIG. 1 (l) shows that the secondary green tire Wb molded to the outer diameter D 2 at the time of vulcanization is put into the vulcanization mold 21 of the vulcanizer with the bladder unit 16 attached. The secondary green tire Wb is cured by being heated and pressurized in the vulcanization mold 21 while maintaining an inflated state, thereby completing a pneumatic radial tire.

上記の図１（ｄ）〜（ｈ）の製造工程において実施するこの発明の反転装置１９は、図２の概略全体斜視図、図３の平面図、図４の正面図に示すように、レール状の一対のベース部材２２に架設した二本の平行な回転自在なロール状のガイド部材２３ａ，２３ｂ上に、周方向の一部を切欠してグリーンタイヤ収容部２４を形成した中空円筒状の反転ドラム２５が旋回可能に載置されている。   The reversing device 19 of the present invention implemented in the manufacturing steps of FIGS. 1 (d) to 1 (h) described above is a rail as shown in the schematic overall perspective view of FIG. 2, the plan view of FIG. 3, and the front view of FIG. A hollow cylindrical shape in which a green tire accommodating portion 24 is formed by cutting a part in the circumferential direction on two parallel rotatable roll-shaped guide members 23a, 23b installed on a pair of base members 22 A reversing drum 25 is placed so as to be turnable.

前記反転ドラム２５は、周方向の略１／４を切欠してグリーンタイヤ収容部２４を形成し、このグリーンタイヤ収容部２４の内壁面には、インフレートされた１次グリーンタイヤＷａの内径部に挿入されたブラダーユニット１６の上下端末部を着脱可能に支持する上下の支持装置２６ａ，２６ｂが設けてある。   The reversing drum 25 forms a green tire housing portion 24 by cutting out approximately 1/4 of the circumferential direction, and the inner wall surface of the green tire housing portion 24 has an inner diameter portion of the inflated primary green tire Wa. Upper and lower support devices 26a and 26b are provided for detachably supporting the upper and lower terminal portions of the bladder unit 16 inserted in.

上側の支持装置２６ａは、反転ドラム２５の上面に支持部材２５ａを介してブラダーユニット１６の上部を固定するロック部材２５ｂが取付けられ、また下側の支持装置２６ｂは、グリーンタイヤ収容部２４の内壁面にブラダーユニット１６の下端部が係合する係合凹部２５ｃが形成されている。   The upper support device 26 a is attached to the upper surface of the reversing drum 25 with a lock member 25 b for fixing the upper portion of the bladder unit 16 via the support member 25 a, and the lower support device 26 b is provided inside the green tire accommodating portion 24. An engagement recess 25c that engages the lower end of the bladder unit 16 is formed on the wall surface.

また、前記ベース部材２２と反転ドラム２５の両側面とには、反転ドラム２５を旋回させる一対の油圧シリンダー等の旋回駆動手段２７が設けてあり、旋回駆動手段２７の基端部２７ａはベース部材２２に回転自在に取付け、また伸縮可能なロッド２７ｂの先端は、反転ドラム２５の両側面に連結部材２８を介して回転可能に連結してある。そして、旋回駆動手段２７の伸縮作動により、反転ドラム２５はガイド部材２３ａ，２３ｂ上を時計方向または半時計方向に所定角度（この実施形態では、９０度）旋回するように構成されている。   Further, a turning drive means 27 such as a pair of hydraulic cylinders for turning the reversing drum 25 is provided on both sides of the base member 22 and the reversing drum 25, and a base end portion 27a of the turning drive means 27 is a base member. The distal end of a rod 27b that is rotatably attached to and can be extended and contracted to 22 is rotatably connected to both side surfaces of the reversing drum 25 via connecting members 28. The reversing drum 25 is configured to turn on the guide members 23a and 23b in a clockwise direction or a counterclockwise direction by a predetermined angle (90 degrees in this embodiment) by the expansion / contraction operation of the turning drive means 27.

更に、前記反転ドラム２５の内部には、反転ドラム２５の板状の外郭２９を前記ガイド部材２３ａ，２３ｂ上に押える回転ローラ等の押え部材３０が内装してあり、また反転ドラム２５の側面には、反転ドラム２５の旋回位置を規制するストッパー等の規制手段３１が設けてある。なお、Ｍは駆動モータである。   Further, a holding member 30 such as a rotating roller for holding the plate-shaped outer shell 29 of the reversing drum 25 on the guide members 23 a and 23 b is provided inside the reversing drum 25, and on the side surface of the reversing drum 25. Is provided with a restricting means 31 such as a stopper for restricting the turning position of the reversing drum 25. M is a drive motor.

また、前記ブラダーユニット１６は、上記のような空気入りラジアルタイヤの製造工程において、第１段成形機１１で成形された１次グリーンタイヤＷａを加硫機の加硫モールド２１に投入するまで使用するものであって、図６に示すような構成からなっている。   The bladder unit 16 is used until the primary green tire Wa molded by the first stage molding machine 11 is put into the vulcanizing mold 21 of the vulcanizer in the manufacturing process of the pneumatic radial tire as described above. And is configured as shown in FIG.

即ち、前記ブラダーユニット１６は、第１段成形機１１で成形された１次グリーンタイヤＷａの内径部に、筒状に形成された上型クランプリング３３と下部クランプリング３４とにクランプされた筒状のブラダー１５を備えたビード間隔調整機構３６が設けてあり、前記１次グリーンタイヤＷａ，２次グリーンタイヤＷｂ及び完成グリーンタイヤを、タイヤ成形時のビード間隔Ｂ1 ，Ｂ2 及びタイヤ加硫時のビード間隔Ｂ3 を多段的に変化させるように構成されている。 That is, the bladder unit 16 is a cylinder clamped by an upper clamp ring 33 and a lower clamp ring 34 formed in a cylindrical shape on the inner diameter portion of the primary green tire Wa molded by the first stage molding machine 11. A bead interval adjusting mechanism 36 having a cylindrical bladder 15 is provided, and the primary green tire Wa, the secondary green tire Wb, and the finished green tire are subjected to bead intervals B 1 and B 2 and tire vulcanization at the time of molding the tire. The time bead interval B 3 is configured to change in multiple stages.

前記ビード間隔調整機構３６は、前記上型クランプリング３３と下型クランプリング３４との少なくとも一方を接近する方向に移動させてビード間隔Ｂ1 ，Ｂ2 ，Ｂ3 を調整する際、前記上型クランプリング３３と下部クランプリング３４とが嵌合するように筒状に形成し、この上型クランプリング３３と下部クランプリング３４との筒状の摺動可能な嵌合面には、互いに多段的に係合する突起状の係止部３３ａ，３３ｂ，３３ｃと、カセット部材３７とが設けてある。 The bead interval adjusting mechanism 36 moves the at least one of the upper mold clamp ring 33 and the lower mold clamp ring 34 in the approaching direction to adjust the bead intervals B 1 , B 2 , B 3. The clamp ring 33 and the lower clamp ring 34 are formed in a cylindrical shape so that they can be fitted, and the cylindrical slidable fitting surfaces of the upper mold clamp ring 33 and the lower clamp ring 34 are multistage. Protruding locking portions 33a, 33b, 33c that engage with the cassette member 37 and a cassette member 37 are provided.

この実施形態のブラダーユニット１６としては、前記下型クランプリング３４を固定し、上型クランプリング３３に、周方向に複数（３分割であるが特に限定されない）に分割されたロッキングセグメント４４と下型リングストッパー部材４５とを設け、油圧シリンダー等により上型クランプリング３３を昇降移動させる際に、上型クランプリング３３のロッキングセグメント４４の下端側に設けた突起状の係止部３３ｃが前記下部クランプリング３４の先端外周面と下端側外周面とに形成した突起状の係止部３３ａ，３３ｂに互いに係合し、またはカセット部材３７を介して係合し、１次グリーンタイヤＷａ，２次グリーンタイヤＷｂ及び完成グリーンタイヤのビード間隔Ｂ1 ，Ｂ2 ，Ｂ3 を自動的に調整して位置決め固定出来るように構成されている。 As the bladder unit 16 of this embodiment, the lower mold clamp ring 34 is fixed, and the upper mold clamp ring 33 is divided into a plurality of locking segments 44 (three divided but not particularly limited) in the circumferential direction and a lower segment. When the upper clamp ring 33 is moved up and down by a hydraulic cylinder or the like provided with the mold ring stopper member 45, the protruding locking portion 33c provided on the lower end side of the locking segment 44 of the upper clamp ring 33 is the lower portion The clamp ring 34 is engaged with the projecting engaging portions 33a and 33b formed on the outer peripheral surface on the front end and the outer peripheral surface on the lower end side, or is engaged through the cassette member 37, so that the primary green tire Wa and secondary are engaged. bead spacing of the green tire Wb and finished green tire B 1, B 2, configured as B 3 to be automatically adjusted to position fixing It is.

即ち、１次グリーンタイヤＷａ，２次グリーンタイヤＷｂのビード間隔Ｂ1 ，Ｂ2 ，Ｂ3 を多段的に調整出来るようにするために、ロッキングセグメント４４の下端側に設けた突起状の係止部３３ｃと、下部クランプリング３４の先端外周面に形成した突起状の係止部３３ａとの間に、長さの異なる複数種類のカセット部材３７を着脱可能に設けるものである。 更に、１次グリーンタイヤＷａ，２次グリーンタイヤＷｂのインフレート時に、エアー漏れを防止するため、上型クランプリング１３と下型クランプリング１４との摺動面にシール部材３８が設けてある。 That is, in order to be able to adjust the bead intervals B 1 , B 2 , B 3 of the primary green tire Wa and the secondary green tire Wb in a multi-stage manner, a protrusion-like engagement provided on the lower end side of the locking segment 44 A plurality of types of cassette members 37 having different lengths are detachably provided between the portion 33c and a protruding locking portion 33a formed on the outer peripheral surface of the tip of the lower clamp ring 34. Further, a seal member 38 is provided on the sliding surface between the upper mold ring 13 and the lower mold ring 14 in order to prevent air leakage when the primary green tire Wa and the secondary green tire Wb are inflated.

なお、図６において、４０ａ，４０ｂは上下のビードリング、４１は上型モールドリング、４２は下部ロックリングを示している。   In FIG. 6, 40a and 40b are upper and lower bead rings, 41 is an upper mold ring, and 42 is a lower lock ring.

次に、この発明のタイヤの反転方法を、図４及び図５を参照しながら説明する。
第１段成形機１１で成形された１次グリーンタイヤＷａをブラダーユニット１６により所定の内圧でインフレートし、この１次グリーンタイヤＷａを横置き状態で搬送装置１８により反転装置１９の反転ドラム２５の近傍まで搬送する。 Next, the tire reversing method of the present invention will be described with reference to FIGS.
The primary green tire Wa molded by the first stage molding machine 11 is inflated with a predetermined internal pressure by the bladder unit 16, and the primary green tire Wa is placed in a horizontal state by the transport device 18 and the reversing drum 25 of the reversing device 19. Transport to the vicinity of

そして、前記搬送装置１８上の１次グリーンタイヤＷａを反転ドラム２５のグリーンタイヤ収容部２４に図示しない移載装置を介して水平状態で移載すると共に、１次グリーンタイヤＷａの内径部に挿入されたブラダーユニット１６の上下端末部を支持装置２６ａ，２６ｂにより支持させ、図４に示すような状態にする。   Then, the primary green tire Wa on the conveying device 18 is transferred to the green tire accommodating portion 24 of the reversing drum 25 in a horizontal state via a transfer device (not shown) and inserted into the inner diameter portion of the primary green tire Wa. The upper and lower end portions of the bladder unit 16 thus formed are supported by the support devices 26a and 26b, and are brought into a state as shown in FIG.

このような状態から、前記反転ドラム２５を旋回駆動手段２７を所定のストローク収縮作動させると、反転ドラム２５は図５に示すように９０度旋回し、反転ドラム２５のグリーンタイヤ収容部２４に支持されていた１次グリーンタイヤＷａも９０度旋回して鉛直状態になる。   In this state, when the reversing drum 25 is operated to contract the revolving drive means 27 by a predetermined stroke, the reversing drum 25 revolves 90 degrees as shown in FIG. 5 and is supported by the green tire housing portion 24 of the reversing drum 25. The primary green tire Wa that has been turned also turns 90 degrees to be in a vertical state.

この状態から１次グリーンタイヤＷａをグリーンタイヤ収容部２４の支持装置２６ａ，２６ｂから取外すと共に、図示しない移載装置を介して第２段成形機１７の成形主軸１７ａに移載するものである。   From this state, the primary green tire Wa is removed from the support devices 26a and 26b of the green tire accommodating portion 24 and transferred to the molding main shaft 17a of the second stage molding machine 17 via a transfer device (not shown).

このように、大重量のグリーンタイヤであっても、上記のような反転装置１９を使用することにより、安全に、かつグリーンタイヤＷａを変形させずに姿勢を変化させることが出来るものである。また反転装置１９の構成は比較的簡単であることから、安価に製造することが出来、特に、大重量のタイヤ生産工程において有効に使用出来、更に、機構そのものと、制御系が簡単で済むことから、信頼性とコストダウンを図ることが出来るものである。   As described above, even with a heavy-weight green tire, the posture can be changed safely and without deforming the green tire Wa by using the reversing device 19 as described above. Further, the structure of the reversing device 19 is relatively simple, so that it can be manufactured at a low cost. In particular, the reversing device 19 can be used effectively in the production process of heavy tires, and the mechanism itself and the control system can be simplified. Therefore, reliability and cost reduction can be achieved.

図１（ａ）〜（ｌ）は、この発明のタイヤの反転方法を実施した例えば、建設車両用の空気入りラジアルタイヤの製造工程の概略構成図である。FIGS. 1A to 1L are schematic configuration diagrams of a manufacturing process of, for example, a pneumatic radial tire for a construction vehicle in which the tire reversing method of the present invention is implemented. この発明のタイヤの反転装置の概略斜視図である。1 is a schematic perspective view of a tire reversing device of the present invention. この発明の反転装置の平面図である。It is a top view of the inversion apparatus of this invention. 図３の一部切欠した正面図である。FIG. 4 is a partially cutaway front view of FIG. 3. 図３の反転装置を９０度旋回させた状態の反転装置の一部切欠した正面図である。FIG. 4 is a partially cutaway front view of the reversing device in a state where the reversing device of FIG. 3 is turned 90 degrees. グリーンタイヤに挿入したブラダーユニットの半断面説明図である。It is half-section explanatory drawing of the bladder unit inserted in the green tire.

符号の説明Explanation of symbols

１１ 第１段成形機 １２ 成形ドラム
１３ 上型クランプリング １４ 下型クランプリング
１５ ブラダー １６ 加硫ブラダーユニット
１７ 第２段成形機 １７ａ 主軸
１８ 搬送装置
１９ 反転装置 ２０ 搬送装置
２１ 加硫モールド ２２ ベース部材
２３ａ，２３ｂ ガイド部材 ２４ グリーンタイヤ収容部
２５ 反転ドラム ２５ａ 支持部材
２５ｂ ロック部材 ２５ｃ 係合凹部
２６ａ，２６ｂ 支持装置 ２７ 旋回駆動手段
２７ａ 基端部 ２７ｂ ロッド
２８ 連結部材 ２９ 外郭
３０ 押え部材 ３１ 規制手段
Ｍ 駆動モータ
３３ 上型クランプリング ３４ 下部クランプリング
３６ ビード間隔調整機構 ３７ カセット部材
３３ａ，３３ｂ，３３ｃ 係止部
４０ａ，４０ｂ 上下のビードリング ４１ 上型モールドリング
４２ 下部ロックリン グ ４４ ロッキングセグメント ４５ 下型リングストッパー部材
Ｗａ １次グリーンタイヤ Ｗｂ ２次グリーンタイヤ
Ｂ1 ，Ｂ2 ，Ｂ3 ビード間隔
Ｄ，Ｄ1,Ｄ2 外径 DESCRIPTION OF SYMBOLS 11 First stage molding machine 12 Molding drum 13 Upper clamp ring 14 Lower mold clamp ring 15 Bladder 16 Vulcanization bladder unit 17 Second stage molding machine 17a Main shaft 18 Conveying device 19 Reversing device 20 Conveying device 21 Vulcanization mold 22 Base member 23a, 23b Guide member 24 Green tire accommodating portion 25 Reversing drum 25a Support member 25b Lock member 25c Engaging recess 26a, 26b Support device 27 Turning drive means 27a Base end portion 27b Rod 28 Connecting member 29 Outer shell 30 Holding member 31 Restricting means M Drive motor 33 Upper clamp ring 34 Lower clamp ring 36 Bead interval adjustment mechanism 37 Cassette member 33a, 33b, 33c Locking portion 40a, 40b Upper and lower bead rings 41 Upper mold ring 42 Lower lock ring 44 King segment 45 lower mold ring stopper member Wa 1 primary green tire Wb 2 primary green tire B 1, B 2, B 3 bead spacing D, D 1, D 2 the outer diameter

Claims (4)

１次グリーンタイヤを横置き状態で搬送装置により反転ドラムの近傍まで搬送し、前記搬送装置上のグリーンタイヤを反転ドラムのグリーンタイヤ収容部に水平状態で移載すると共に、グリーンタイヤの内径部に挿入されたブラダーユニットの上下端末部を支持装置により支持し、この状態で前記反転ドラムを旋回駆動手段により９０度旋回させてグリーンタイヤを鉛直状態にし、この状態からグリーンタイヤを移載装置を介して成形機の主軸に装着することを特徴とする空気入りタイヤの反転方法。 The primary green tire is transported to the vicinity of the reversing drum by the transporting device in a horizontal state, and the green tire on the transporting device is horizontally transferred to the green tire housing portion of the reversing drum, The upper and lower end portions of the inserted bladder unit are supported by a support device, and in this state, the reversing drum is turned 90 degrees by the turning drive means to bring the green tire into a vertical state, and the green tire is transferred from this state via the transfer device. A method for reversing a pneumatic tire characterized by being mounted on a main shaft of a molding machine. ベース部材に架設した二本の平行な回転自在なガイド部材上に、周方向の一部を切欠してグリーンタイヤ収容部を形成した円筒状の反転ドラムを旋回可能に載置し、前記ベース部材と反転ドラム側面とに、反転ドラムの旋回駆動手段を設け、前記反転ドラムのグリーンタイヤ収容部の内壁面に、インフレートされたグリーンタイヤの内径部に挿入されたブラダーユニットを着脱可能に支持する支持装置を設けたことを特徴とする空気入りタイヤの反転装置。 On the two parallel rotatable guide members installed on the base member, a cylindrical reversing drum in which a part of the circumferential direction is cut out to form a green tire accommodating portion is rotatably mounted, and the base member And a reversing drum swivel drive means on the side surface of the reversing drum, and a bladder unit inserted in the inner diameter portion of the inflated green tire is detachably supported on the inner wall surface of the green tire housing portion of the reversing drum. A pneumatic tire reversing device comprising a support device. 前記反転ドラムの内部に、反転ドラムの外郭をガイド部材上に押え支持する押え部材を設けた請求項２に記載の空気入りタイヤの反転装置。 The pneumatic tire reversing device according to claim 2, wherein a pressing member that presses and supports an outer periphery of the reversing drum on a guide member is provided inside the reversing drum. 前記反転ドラムの側面に、反転ドラムの旋回位置を規制する規制手段を設けた請求項２または３に記載の空気入りタイヤの反転装置。
The pneumatic tire reversing device according to claim 2 or 3, wherein a regulating means for regulating a turning position of the reversing drum is provided on a side surface of the reversing drum.
JP2004063442A 2004-03-08 2004-03-08 Pneumatic tire reversing device Expired - Fee Related JP4904666B2 (en)

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WO2013083087A1 (en) * 2011-12-07 2013-06-13 Yuan Zhongxue Tyre carcass assembly pressing apparatus and method therefor
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EP2952339A4 (en) * 2013-02-01 2016-10-19 Bridgestone Corp Green tire support device and method for removing drum from green tire
CN108274655A (en) * 2018-03-06 2018-07-13 江苏中宏环保科技有限公司 Waste tire automates stripping and slicing production line
CN108381818A (en) * 2018-03-06 2018-08-10 江苏中宏环保科技有限公司 Tire automatic rollover device

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005081845A (en) * 2003-09-09 2005-03-31 Goodyear Tire & Rubber Co:The Method for assembling/conveying tread belt structure and device therefor
WO2013083087A1 (en) * 2011-12-07 2013-06-13 Yuan Zhongxue Tyre carcass assembly pressing apparatus and method therefor
EP2746034A1 (en) * 2012-12-21 2014-06-25 Hankook Tire Co., Ltd. Apparatus for applying sealant to inner side of tire
EP2952339A4 (en) * 2013-02-01 2016-10-19 Bridgestone Corp Green tire support device and method for removing drum from green tire
US10350844B2 (en) 2013-02-01 2019-07-16 Bridgestone Corporation Green tire support device and method of removing drum from green tire
CN104198214A (en) * 2014-08-28 2014-12-10 泰兴市双羊皮革橡塑机械厂 Tire cutting machine
CN108274655A (en) * 2018-03-06 2018-07-13 江苏中宏环保科技有限公司 Waste tire automates stripping and slicing production line
CN108381818A (en) * 2018-03-06 2018-08-10 江苏中宏环保科技有限公司 Tire automatic rollover device
CN108274655B (en) * 2018-03-06 2023-08-15 江苏中宏环保科技有限公司 Automatic cutting production line for junked tires
CN108381818B (en) * 2018-03-06 2023-08-22 江苏中宏环保科技有限公司 Automatic turning device of tire

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