JP2011240691A - Method for molding green tire - Google Patents
Method for molding green tire Download PDFInfo
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- JP2011240691A JP2011240691A JP2010117388A JP2010117388A JP2011240691A JP 2011240691 A JP2011240691 A JP 2011240691A JP 2010117388 A JP2010117388 A JP 2010117388A JP 2010117388 A JP2010117388 A JP 2010117388A JP 2011240691 A JP2011240691 A JP 2011240691A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000000465 moulding Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 91
- 230000002093 peripheral effect Effects 0.000 claims abstract description 40
- 230000008602 contraction Effects 0.000 claims description 5
- 239000002994 raw material Substances 0.000 description 4
- 241000254043 Melolonthinae Species 0.000 description 2
- 239000000835 fiber Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
- B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
- B29D30/24—Drums
- B29D30/26—Accessories or details, e.g. membranes, transfer rings
- B29D30/2607—Devices for transferring annular tyre components during the building-up stage, e.g. from the first stage to the second stage building drum
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Abstract
Description
本発明は、生タイヤの成形方法、詳細には、両端面を突き合わせ接合させたカーカスプライ素材を含む生タイヤを成形する方法、なかでも、複数枚のカーカスプライ素材を含む生タイヤを効率的且つ容易に成形することができる、生タイヤの成形方法に関するものである。 The present invention relates to a method for forming a raw tire, in particular, a method for forming a raw tire including a carcass ply material in which both end faces are butt-joined, and in particular, a raw tire including a plurality of carcass ply materials is efficiently and The present invention relates to a green tire molding method that can be easily molded.
空気入りタイヤ用のカーカスプライ素材を接合する方法としては、カーカスプライ素材の始端側の端面と終端側の端面とを突き合わせて接合する、いわゆるバットジョイントによる接合方法がある。 As a method of joining the carcass ply material for the pneumatic tire, there is a so-called butt joint joining method in which the end surface on the start end side and the end surface on the end side of the carcass ply material are butted together.
このような接合方法を行うための装置として、例えば、特許文献1には、「径が拡縮可能であるとともに、外周の一部に長手方向へ延びる開口溝を有し、外周にカーカスプライをその両端部が開口溝上に位置するように巻回するための成形ドラムと、その成形ドラムの開口溝の内側及び外側に対向して開口溝の延長方向へ移動可能に配設され、カーカスプライの両端部を挟持した状態で回転移動されることにより、そのカーカスプライの両端部を互いに接近させながら接合する各一対の接合ローラと、その接合ローラに対して、接合時の移動方向の前方側に一体移動可能に延長配置され、カーカスプライの両端部の接合に先立って、成形ドラムの縮径に伴いカーカスプライの両端部に当接して、その両端部間の間隙を一定に規制する規制部材と、その規制部材の両側に回転可能及び一体移動可能に配設され、カーカスプライの両端部を支持する複数の支持ローラと、その支持ローラの上方に接離可能に、かつ接合ローラの移動方向へ相対移動可能に配設され、カーカスプライの両端部の接合時に、その両端部と対応する位置に残って、接合ローラよりも前方側に位置する接合前の両端部を、支持ローラとの間で挟持するとともに、接合ローラよりも後方側に位置する接合後の両端部を成形ドラム側に押圧保持する押圧部材とを備えたことを特徴とするカーカスプライの両端部接合装置。」が記載されており、これによれば、「カーカスプライの両端部を常に一定の間隙を保った状態で、各一対の接合ローラ間に案内誘導することができて、そのカーカスプライの両端部を正確に接合することができる。」とする。 As an apparatus for performing such a joining method, for example, Patent Document 1 discloses that “the diameter is expandable / contractable, an opening groove extending in the longitudinal direction is provided in a part of the outer periphery, and a carcass ply is provided on the outer periphery. A forming drum for winding so that both end portions are positioned on the opening groove, and arranged so as to be movable in the extending direction of the opening groove so as to face the inside and the outside of the opening groove of the forming drum. And a pair of joining rollers for joining the two ends of the carcass ply close to each other by being rotationally moved in a state where the part is sandwiched, and the joining roller integrally with the front side in the moving direction at the time of joining. A restricting member that is movably extended and that abuts against both ends of the carcass ply as the molding drum contracts before joining both ends of the carcass ply, and regulates the gap between both ends to be constant. A plurality of support rollers that are rotatably and integrally movable on both sides of the regulating member, support both ends of the carcass ply, and can be contacted and separated above the support roller, and in the moving direction of the joining roller At the time of joining the both ends of the carcass ply, the two ends before joining that are located on the front side of the joining roller between the both ends of the carcass ply are placed between the support rollers. A carcass ply both-end joining apparatus characterized in that it includes a pressing member that sandwiches and presses and holds both ends after joining positioned on the rear side of the joining roller toward the forming drum. " According to this, “the both ends of the carcass ply can always be guided and guided between each pair of joining rollers in a state where a constant gap is maintained, and the both ends of the carcass ply can be accurately joined. Rukoto can be. And ".
しかしながら、特許文献1に記載された接合装置では、接合するカーカスプライが1枚であれば、インナーライナーを拡張させることで端部接合が可能となるが、カーカスプライが2枚以上ある場合には、繊維を含んだカーカスプライを拡張させる必要があるため、接合が難しいという問題があった。 However, in the joining apparatus described in Patent Document 1, if the number of carcass plies to be joined is one, end joining can be performed by expanding the inner liner, but if there are two or more carcass plies, Since the carcass ply containing the fiber needs to be expanded, there is a problem that the joining is difficult.
そこで本発明は、上記の問題点に鑑み、複数枚のカーカスプライ素材を含む生タイヤを、効率的且つ容易に成形することができる、生タイヤの成形方法を提供することを目的とする。 In view of the above problems, an object of the present invention is to provide a green tire molding method that can efficiently and easily mold a green tire including a plurality of carcass ply materials.
上記課題を解決する本発明の要旨構成は、以下の通りである。
本発明の生タイヤの成形方法は、両端面を突き合わせ接合させたカーカスプライ素材を含む生タイヤを成形するに当り、
拡縮径変形可能な端面接合用ドラムの周面上で、カーカスプライ素材の両端面を付き合わせ接合させて円筒状に形成した後、
該カーカスプライ素材を、前記端面接合用ドラムとともに、拡縮径方向に変位可能な複数の吸着手段を具えた搬送手段に挿入し、該搬送手段の吸着手段を、前記端面接合用ドラム上の前記カーカスプライ素材の外周面に吸着させて、該搬送手段または該端面接合用ドラムを拡縮方向に変位させることによって、該カーカスプライ素材を前記端面接合用ドラムの周面から乖離させた後、前記搬送手段から前記端面接合用ドラムを取外し、次いで、
インナーライナー部材を含む他の部材を周面上で成形するバンドドラム上に前記カーカスプライ素材を搬送し、該バンドドラムの周面上で前記カーカスプライ素材と、前記他の部材とを組み合わせることによって生タイヤを成形することを特徴とする。
The gist configuration of the present invention for solving the above problems is as follows.
The green tire molding method of the present invention is a method for molding a green tire including a carcass ply material having both end faces butted together.
After forming both ends of the carcass ply material on the peripheral surface of the end surface joining drum that can be expanded and contracted in diameter and joining them together into a cylindrical shape,
The carcass ply material is inserted together with the end face joining drum into a transport means having a plurality of suction means that can be displaced in the expansion and contraction diameter direction, and the suction means of the transport means is inserted into the carcass on the end face joining drum. After the carcass ply material is separated from the peripheral surface of the end surface joining drum by adsorbing to the outer peripheral surface of the ply material and displacing the transport means or the end surface joining drum in the expansion / contraction direction, the transport means And removing the end face joining drum from
By transporting the carcass ply material onto a band drum for forming other members including the inner liner member on the peripheral surface, and combining the carcass ply material and the other member on the peripheral surface of the band drum A green tire is formed.
請求項1に記載したところにおいて、好ましくは、前記端面接合用ドラムの周面上で、一のカーカスプライ素材の両端面を付き合わせ接合させて円筒状に形成し、該一のカーカスプライ素材を前記搬送手段に吸着させて、該搬送手段から前記端面接合用ドラムを取外した後、さらに、
前記端面接合用ドラムの周面上で、他のカーカスプライ素材の両端面を付き合わせ接合させて円筒状に形成し、次いで、
前記搬送手段に吸着された、前記一のカーカスプライ素材の径方向内側に、前記他のカーカスプライ素材を、前記端面接合用ドラムとともに挿入し、該端面接合用ドラムを拡径させることによって、該他のカーカスプライ素材の外周面を、前記一のカーカスプライ素材の内周面に押圧して、両カーカスプライ素材を相互に貼着させ、
相互に貼着された少なくとも2層のカーカスプライ素材を、前記バンドドラム上に搬送し、該バンドドラムの周面上で前記少なくとも2層のカーカスプライ素材と、前記他の部材とを組み合わせることにより、少なくとも2層のカーカスプライ素材を含む生タイヤを成形する。
Preferably, on the peripheral surface of the drum for end surface joining, both end surfaces of one carcass ply material are joined together and formed into a cylindrical shape, and the one carcass ply material is formed into a cylindrical shape. After adsorbing to the conveying means and removing the end surface joining drum from the conveying means,
On the peripheral surface of the end surface joining drum, both end surfaces of other carcass ply materials are joined together and formed into a cylindrical shape,
By inserting the other carcass ply material together with the end surface joining drum inside the radial direction of the one carcass ply material adsorbed by the conveying means, and expanding the diameter of the end surface joining drum, Press the outer peripheral surface of the other carcass ply material against the inner peripheral surface of the one carcass ply material, and attach the two carcass ply materials to each other.
By transporting at least two layers of the carcass ply material adhered to each other onto the band drum, and combining the at least two layers of the carcass ply material and the other member on the peripheral surface of the band drum. A green tire including at least two layers of carcass ply material is formed.
本発明の生タイヤの成形方法によれば、カーカスプライ素材の端面接合を専用の端面接合用ドラムにて行い、搬送手段によってバンドドラムに搬送して、バンドドラム上で他部材との組み付けを行うため、例えば、カーカスプライ素材の接合と搬送とを順次に繰返すことによって、複数枚のカーカスプライ素材を含む生タイヤを、バンドドラム上で容易且つ効率的に成形することができる。 According to the green tire molding method of the present invention, end face joining of the carcass ply material is performed by a dedicated end face joining drum, transported to the band drum by transport means, and assembled with other members on the band drum. Therefore, for example, by sequentially repeating the joining and conveyance of the carcass ply material, a raw tire including a plurality of carcass ply materials can be easily and efficiently formed on the band drum.
また、本発明の生タイヤの成形方法において、端面接合用ドラムの周面上で、一のカーカスプライ素材の両端面を付き合わせ接合させて円筒状に形成し、該一のカーカスプライ素材を前記搬送手段に吸着させて、搬送手段から端面接合用ドラムを取外した後、さらに、端面接合用ドラムの周面上で、他のカーカスプライ素材の両端面を付き合わせ接合させて円筒状に形成し、次いで、搬送手段に吸着された、一のカーカスプライ素材の径方向内側に、他のカーカスプライ素材を、端面接合用ドラムとともに挿入し、該端面接合用ドラムを拡径させることによって、該他のカーカスプライ素材の外周面を、一のカーカスプライ素材の内周面に押圧して、両カーカスプライ素材を相互に貼着させてから、相互に貼着された少なくとも2層のカーカスプライ素材を、前記バンドドラム上に搬送し、該バンドドラムの周面上で前記少なくとも2層のカーカスプライ素材と、前記他の部材とを組み合わせた場合は、搬送手段で既に複数層に形成されたカーカスプライ素材をバンドドラム上に搬送するため、バンドドラム上での他の部材との組み付け作業が極めて容易になるため、生タイヤの成形効率の向上を図ることができる。 Further, in the green tire molding method of the present invention, on the peripheral surface of the end surface joining drum, both end surfaces of one carcass ply material are joined together and formed into a cylindrical shape, and the one carcass ply material is After adsorbing to the conveying means and removing the end surface joining drum from the conveying means, the both end surfaces of the other carcass ply materials are joined together on the peripheral surface of the end surface joining drum to form a cylindrical shape. Then, another carcass ply material is inserted together with the end surface joining drum inside the radial direction of the one carcass ply material adsorbed by the conveying means, and the end surface joining drum is expanded in diameter to The carcass ply material's outer peripheral surface is pressed against the inner peripheral surface of one carcass ply material, and the two carcass ply materials are attached to each other, and then at least two layers of carcass adhered to each other. When the ply material is conveyed onto the band drum and the at least two layers of the carcass ply material and the other member are combined on the peripheral surface of the band drum, the ply material is already formed into a plurality of layers by the conveying means. Since the carcass ply material is conveyed onto the band drum, the assembling work with other members on the band drum becomes extremely easy, so that the molding efficiency of the green tire can be improved.
以下、図面を参照して、本発明を詳細に説明する。
図1に示すところにおいて、端面接合用ドラムPDは、拡縮径変形可能であり、また、カーカスプライ素材の端面を付き合わせ接合させるための接合手段5を具えている。カーカスプライ素材P1は、端面接合用ドラムPDの周面上で端面を接合され、円弧状に形成されている。
Hereinafter, the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the end surface joining drum PD is deformable in diameter and is provided with joining
カーカスプライ素材P1は、端面接合用ドラムPDとともに、拡縮径方向に変位可能な複数(図示例では、6個)の吸着手段2を具えた搬送手段1に挿入されており、搬送手段1の吸着手段2は、端面接合用ドラムPD上のカーカスプライ素材P1の外周面にそれぞれ吸着している。 The carcass ply material P 1 is inserted into the conveying means 1 including a plurality of (six in the illustrated example) suction means 2 that can be displaced in the expansion / contraction diameter direction together with the end surface joining drum PD. suction means 2 are adsorbed respectively on the outer peripheral surface of the carcass ply material P 1 on the end face joining drum PD.
図示例では、端面接合用ドラムPD及び搬送手段1は、ともに縮径した状態であり、この場合、搬送手段1の各吸着手段2を拡径方向に変位させることにより、カーカスプライ素材P1を端面接合用ドラムPDの周面から乖離させることができる。尚、図示されないが、端面接合用ドラムPD及び搬送手段1が、ともに拡径した状態である場合は、端面接合用ドラムPDを縮径させることによって、カーカスプライ素材P1を端面接合用ドラムPDの周面から乖離させることができる。 In the illustrated example, the end surface joining drum PD and the conveying means 1 are both in a reduced diameter state. In this case, the carcass ply material P 1 is displaced by displacing each suction means 2 of the conveying means 1 in the diameter increasing direction. It can be made to detach | deviate from the surrounding surface of drum PD for end surface joining. Although not shown, the end face joining drum PD and conveying means 1, when a state in which both enlarged, by diameter end faces joining drum PD, drum end face joining the carcass ply material P 1 PD It is possible to deviate from the peripheral surface.
かくしてカーカスプライ素材P1を端面接合用ドラムPDの周面から乖離させた後、搬送手段1から端面接合用ドラムPDを取外すことにより、図2に示すような、カーカスプライ素材P1が搬送手段1によって保持されている状態とすることができる。搬送手段1は変位可能であり、カーカスプライ素材P1を円筒形状のまま自在に搬送することができる。 Thus after the carcass ply material P 1 is deviated from the circumferential surface of the end surface joining drum PD, by removing the end surface bonding drum PD from the conveying means 1, as shown in FIG. 2, carcass ply material P 1 is conveying means 1 can be maintained. Transport means 1 is displaceable, it is possible to transport the carcass ply material P 1 freely remain cylindrical.
このカーカスプライ素材P1を、図3に示すところのように、インナーライナー部材3を含む他の部材(図示例では、インナーライナー部材3及びゴムチェーファ部材)を周面上に有するバンドドラムBD上に搬送し、バンドドラムBDの周面上でカーカスプライ素材P1と、これらの部材3,4とを組み合わせ、生タイヤを形成する。
The carcass ply material P 1, as the method shown in FIG. 3, (in the illustrated example, the
また、本発明では、先に搬送手段上で複数層のカーカスプライ素材を積層してから、バンドドラム上に搬送し、他の部材と組み合わせることによって、少なくとも2層のカーカスプライ素材を含む生タイヤを成形することもできる。 Further, in the present invention, a raw tire including at least two layers of carcass ply materials is obtained by first laminating a plurality of layers of carcass ply materials on a conveying means and then conveying them onto a band drum and combining with other members. Can also be molded.
即ち、端面接合用ドラムPDの周面上で、一のカーカスプライ素材P1の両端面を付き合わせ接合させて円筒状に形成し、一のカーカスプライ素材P1を吸着させて、搬送手段1から端面接合用ドラムPDを取外して図2のような状態とした後、さらに、端面接合用ドラムPDの周面上で、他のカーカスプライ素材P2の両端面を付き合わせ接合させて円筒状に形成し、次いで、この他のカーカスプライ素材P2を、図4(a)及び(b)に示されるところのように、搬送手段1に吸着された先の一のカーカスプライ素材P1の径方向内側に、端面接合用ドラムPDとともに挿入することができ、この状態から端面接合用ドラムPDを他のカーカスプライ素材P2とともに拡径させ、該他のカーカスプライ素材P2の外周面を、一のカーカスプライ素材P1の内周面に押圧することにより、両カーカスプライ素材P1及びP2を相互に貼着させることができる。これにより、複数層に形成されたカーカスプライ素材P1及びP2を搬送手段上に得ることができる。 That is, on the peripheral surface of the end face joining drum PD, are joined butted both end faces of one carcass ply material P 1 is formed into a cylindrical shape, adsorbed one carcass ply material P 1, conveying means 1 after the state shown in FIG. 2 and remove the end face joining drum PD from further on the peripheral surface of the end face joining drum PD, cylindrical by joining butted both end faces of the other of the carcass ply material P 2 formed in, then the other of the carcass ply material P 2, in FIG. 4 (a) and shown as Trying (b), the one carcass ply the above adsorbed on the conveying means 1 material P 1 radially inwardly, can be inserted with an end face joining drum PD, an end face joining drum PD is expanded with other carcass ply material P 2 from this state, the said other of the outer peripheral surface of the carcass ply material P 2 The one car By pressing the inner peripheral surface of Kasupurai material P 1, both carcass ply material P 1 and P 2 can be attached to each other. Thus, it is possible to obtain the carcass ply material P 1 and P 2 which are formed in a plurality of layers on the conveying means.
かくして複数層に形成されたカーカスプライ素材P1及びP2を、図5のように、バンドドラムBD上に搬送し、同様に、このバンドドラムBDの周面上で複数層(図示例では2層)のカーカスプライ素材P1及びP2と、他の部材3,4とを組み合わせることにより、複数層のカーカスプライ素材P1及びP2を含む生タイヤを成形することができる。
Thus, the carcass ply materials P 1 and P 2 formed in a plurality of layers are conveyed onto the band drum BD as shown in FIG. 5, and similarly, a plurality of layers (2 in the illustrated example) on the peripheral surface of the band drum BD. a carcass ply material P 1 and P 2 layers), by combining with
1 搬送手段
2 吸着手段
3 インナーライナー部材
4 ゴムチェーファ部材
5 接合手段
P1 カーカスプライ
P2 他のカーカスプライ
PD 端面接合用ドラム
BD バンドドラム
DESCRIPTION OF SYMBOLS 1 Conveying means 2 Adsorption means 3 Inner liner member 4
Claims (2)
拡縮径変形可能な端面接合用ドラムの周面上で、カーカスプライ素材の両端面を付き合わせ接合させて円筒状に形成した後、
該カーカスプライ素材を、前記端面接合用ドラムとともに、拡縮径方向に変位可能な複数の吸着手段を具えた搬送手段に挿入し、該搬送手段の吸着手段を、前記端面接合用ドラム上の前記カーカスプライ素材の外周面に吸着させて、該搬送手段または該端面接合用ドラムを拡縮方向に変位させることによって、該カーカスプライ素材を前記端面接合用ドラムの周面から乖離させた後、前記搬送手段から前記端面接合用ドラムを取外し、次いで、
インナーライナー部材を含む他の部材を周面上に有するバンドドラム上に前記カーカスプライ素材を搬送し、該バンドドラムの周面上で前記カーカスプライ素材と、前記他の部材とを組み合わせることによって生タイヤを成形することを特徴とする、生タイヤの成形方法。 In forming a raw tire containing carcass ply material with both end faces butted together,
After forming both ends of the carcass ply material on the peripheral surface of the end surface joining drum that can be expanded and contracted in diameter and joining them together into a cylindrical shape,
The carcass ply material is inserted together with the end face joining drum into a transport means having a plurality of suction means that can be displaced in the expansion and contraction diameter direction, and the suction means of the transport means is inserted into the carcass on the end face joining drum. After the carcass ply material is separated from the peripheral surface of the end surface joining drum by adsorbing to the outer peripheral surface of the ply material and displacing the transport means or the end surface joining drum in the expansion / contraction direction, the transport means And removing the end face joining drum from
The carcass ply material is transported onto a band drum having other members including an inner liner member on the peripheral surface, and the carcass ply material and the other members are combined on the peripheral surface of the band drum. A method for forming a raw tire, comprising forming a tire.
前記端面接合用ドラムの周面上で、他のカーカスプライ素材の両端面を付き合わせ接合させて円筒状に形成し、次いで、
前記搬送手段に吸着された、前記一のカーカスプライ素材の径方向内側に、前記他のカーカスプライ素材を、前記端面接合用ドラムとともに挿入し、該端面接合用ドラムを拡径させることによって、該他のカーカスプライ素材の外周面を、前記一のカーカスプライ素材の内周面に押圧して、両カーカスプライ素材を相互に貼着させ、
相互に貼着された少なくとも2層のカーカスプライ素材を、前記バンドドラム上に搬送し、該バンドドラムの周面上で前記少なくとも2層のカーカスプライ素材と、前記他の部材とを組み合わせることにより、少なくとも2層のカーカスプライ素材を含む生タイヤを成形する、請求項1に記載の生タイヤの成形方法。 On the peripheral surface of the end surface joining drum, both end surfaces of one carcass ply material are joined and joined to form a cylindrical shape, and the one carcass ply material is adsorbed to the conveying means, After removing the drum for end face joining,
On the peripheral surface of the end surface joining drum, both end surfaces of other carcass ply materials are joined together and formed into a cylindrical shape,
By inserting the other carcass ply material together with the end surface joining drum inside the radial direction of the one carcass ply material adsorbed by the conveying means, and expanding the diameter of the end surface joining drum, Press the outer peripheral surface of the other carcass ply material against the inner peripheral surface of the one carcass ply material, and attach the two carcass ply materials to each other.
By transporting at least two layers of the carcass ply material adhered to each other onto the band drum, and combining the at least two layers of the carcass ply material and the other member on the peripheral surface of the band drum. The green tire molding method according to claim 1, wherein a green tire including at least two layers of a carcass ply material is molded.
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JP2001062940A (en) * | 1999-06-25 | 2001-03-13 | Bridgestone Corp | Method for joining sheetlike unvulcanized rubber material and joining system |
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