JP2534514B2 - Temporary pressure bonding method in tire molding process - Google Patents
Temporary pressure bonding method in tire molding processInfo
- Publication number
- JP2534514B2 JP2534514B2 JP62234861A JP23486187A JP2534514B2 JP 2534514 B2 JP2534514 B2 JP 2534514B2 JP 62234861 A JP62234861 A JP 62234861A JP 23486187 A JP23486187 A JP 23486187A JP 2534514 B2 JP2534514 B2 JP 2534514B2
- Authority
- JP
- Japan
- Prior art keywords
- tire molding
- tire
- pressure bonding
- temporary pressure
- roller
- 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.)
- Expired - Lifetime
Links
- 238000000465 moulding Methods 0.000 title claims description 37
- 238000000034 method Methods 0.000 title claims description 22
- 239000012778 molding material Substances 0.000 claims description 33
- 210000004712 air sac Anatomy 0.000 claims description 5
- 239000000463 material Substances 0.000 description 7
- 239000000470 constituent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- 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
- B29D30/28—Rolling-down or pressing-down the layers in the building process
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tyre Moulding (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、タイヤ成形工程に於ける仮圧着方法に係
わり、更に詳しくは大型ラジアルタイヤの第１段階のグ
リーンタイヤ成形工程において、成形ドラムに貼付けら
れる薄物のタイヤ成形材料（例えばサイドトレッド等）
をステッチングさせる前に仮圧着ローラにより仮圧着さ
せるタイヤ成形工程に於ける仮圧着方法に関するもので
ある。Description: TECHNICAL FIELD The present invention relates to a temporary pressure bonding method in a tire molding process, and more particularly to a forming drum in a first stage green tire molding process of a large radial tire. Thin tire molding material to be applied (eg side tread)
The present invention relates to a temporary pressure bonding method in a tire molding process in which temporary pressure bonding is performed by a temporary pressure bonding roller before stitching.
従来、大型ラジアルタイヤの第１段階のグリーンタイ
ヤ成形工程においては、第５図に示すように、成形ドラ
ム１にカーカス材料２を貼りビード３を両端に入れた
後、図示しないリムクッション等を含む薄物のタイヤ構
成材料Ｗ（例えばサイドトレッド等）を貼付ける作業が
行われていた。Conventionally, in the first stage green tire molding process for a large radial tire, as shown in FIG. 5, after the carcass material 2 is attached to the forming drum 1 and the beads 3 are placed at both ends, a rim cushion and the like not shown are included. The work of sticking a thin tire constituent material W (for example, side tread) has been performed.
ところで、帯状に成形されたタイヤ成形材料Ｗは、断
面が一定の形状（山形形状）を有しており、肉厚が両側
縁部Ｐと中央部とが異なるために、成形ドラム面に沿っ
て貼る場合、両側縁部Ｐが直線状にならずに波状になっ
てしまったり、また内部にエアー溜りが生ずることがあ
る。By the way, the band-shaped tire molding material W has a constant cross-section (mountain shape), and since both side edge portions P and the central portion have different wall thicknesses, the tire molding material W is formed along the molding drum surface. In the case of sticking, both side edges P may become wavy instead of being straight, or air may be accumulated inside.
このような状態で、ステッチングローラをかけると、
両側縁部Ｐに折れ皺が発生し、タイヤの品質を低下させ
てしまうことから、従来ではステッチングローラをかけ
る前に、作業員がエッジ部における波状部分の山部をド
ラム面に押し付けてならすと共に、エアー溜りを除く仮
付け作業を行っていた。If you apply the stitching roller in this state,
Since wrinkles are generated on both side edge portions P and the quality of the tire is deteriorated, conventionally, before applying the stitching roller, an operator presses the mountain portion of the wavy portion on the edge portion to the drum surface. At the same time, temporary work was done to remove the air pool.
然しながら、上記のような手直し作業を、成形作業毎
に行うことは、作業性が極めて悪く、また生産性の向上
を図ることができないと言う問題があった。However, there is a problem that performing the above-mentioned reworking work for each forming work is extremely poor in workability and cannot improve productivity.
また、従来では成形ドラムにタイヤ構成材料を貼付け
た後に、ステッチングローラをかけるステッチングロー
ラやステッチング方法について、種々の発明が提案され
ているが（特公昭52−37515号公報及び特開昭52−47878
号公報）、ステッチングローラをかける前工程でタイヤ
構成材料をタイヤ成形ドラムに対して圧着ローラにより
仮圧着させる方法については未だ提案されていない。Further, conventionally, various inventions have been proposed for a stitching roller and a stitching method for applying a stitching roller after pasting a tire constituent material on a molding drum (Japanese Patent Publication No. 52-37515 and Japanese Patent Laid-Open No. 37515/1982). 52-47878
(Japanese Patent Laid-Open Publication No. JP-A-2003-242242), a method for temporarily press-bonding a tire constituent material to a tire molding drum by a press roller has not yet been proposed.
この発明は、かかる従来の問題点に着目して案出され
たもので、その目的とするところは大型ラジアルタイヤ
の第１段階のグリーンタイヤ成形工程において、ステッ
チングローラをかける前に、タイヤ形成材料の両側縁部
における波状部分の手直しや、エアー溜りを除く作業
を、人手を介することなく自動的に行い、生産性の向上
を図ると共に、品質の向上を図るようにしたタイヤ成形
工程に於ける仮圧着方法を提供するものである。The present invention has been devised by focusing on such conventional problems, and the object thereof is to form a tire before applying a stitching roller in a green tire forming step of the first stage of a large radial tire. In the tire molding process, the wavy parts at both edges of the material are automatically repaired and the work of removing the air pool is automatically performed without human intervention to improve productivity and quality. The present invention provides a temporary pressure bonding method.
この発明は上記目的を達成するため、成形ドラムの外
周部近傍に設置される支持フレームに、ガイドロッドを
摺動可能に支持させ、前記ガイドロッドの先端に、ブラ
ケットを介して所定幅を有するエアーブラダーロール
や、またはスポンジロール等の仮圧着ローラを回転可能
に支持させ、前記エアーブラダーロールを、支持フレー
ムに設けられたシリンダを介して成形ドラム面に貼付け
られたタイヤ成形材料に対して進退，かつ圧着可能に構
成し、第１段階のグリーンタイヤ成形工程において、ス
テッチングローラをかける前に、前記仮圧着ローラを所
定の形状を有するタイヤ成形材料に対して一定の圧力に
より圧着させると共に、その形状に追従させ、成形ドラ
ムを回転させることによりタイヤ成形材料の側縁部にお
ける波状部分の手直しや、エアー溜りを除く作業を、人
手を介することなく自動的に行い、生産性の向上を図る
と共に、品質の向上を図るようにしたものである。In order to achieve the above object, the present invention allows a guide frame to be slidably supported by a support frame installed in the vicinity of an outer peripheral portion of a molding drum, and an air having a predetermined width is provided at a tip of the guide rod through a bracket. A bladder roll, or a temporary pressure roller such as a sponge roll is rotatably supported, and the air bladder roll is moved back and forth with respect to the tire molding material attached to the molding drum surface via a cylinder provided in a support frame, In addition, in the first step of forming the green tire, the provisional pressure-bonding roller is pressure-bonded to the tire molding material having a predetermined shape at a constant pressure in the first step of forming the green tire, and Reworking the wavy portion on the side edge of the tire molding material by following the shape and rotating the molding drum The work excluding air reservoir, automatically performed without human intervention, with improved productivity, is obtained so as to improve the quality.
以下添付図面に基いて、この発明の実施例を説明す
る。An embodiment of the present invention will be described below with reference to the accompanying drawings.
なお、以下の説明で、上記従来例と同一構成要素は同
一符号を付して説明する。In addition, in the following description, the same components as those of the above-described conventional example are denoted by the same reference numerals.
第１図は、この発明を実施した大型ラジアルタイヤの
第１段階のグリーンタイヤ成形工程における仮圧着方法
を実施するための仮圧着装置の作動状態の説明図を示
し、１は成形ドラム、２はカーカス材料、３はカーカス
材料２の両端に打ち込まれたビード、Ｗは断面略山形状
に成形されたタイヤ成形材料（サイドトレッド）を示
し、このタイヤ成形材料Ｗは、成形ドラム１の両側に平
行に貼付けられる。FIG. 1 is an explanatory view of an operating state of a temporary pressure bonding apparatus for performing a temporary pressure bonding method in a first stage green tire molding process of a large radial tire embodying the present invention, and 1 is a molding drum, 2 is a A carcass material, 3 is a bead that is driven into both ends of the carcass material 2, W is a tire molding material (side tread) molded in a substantially mountain-shaped cross section, and this tire molding material W is parallel to both sides of the molding drum 1. Affixed to.
前記タイヤ成形材料Ｗに、ステッチングローラをかけ
る前に、仮圧着させる手段として、第１図に示すような
仮圧着ブラダー装置5a,5bが用いられる。As a means for temporarily pressing the tire molding material W before applying the stitching roller, temporary pressing bladder devices 5a and 5b as shown in FIG. 1 are used.
この仮圧着ブラダー装置5a,5bは、第２図及び第３図
に示すように、成形ドラム１の外周部近傍に設置される
支持フレーム６に、軸受部材７を介して２本の平行なガ
イドロッド7a,7bが摺動可能に支持され、前記ガイドロ
ッド7a,7bの先端に、断面凹状のブラケット８が固定さ
れている。As shown in FIGS. 2 and 3, the temporary compression bladder devices 5a and 5b are provided with two parallel guides via a bearing member 7 on a support frame 6 installed near the outer peripheral portion of the molding drum 1. Rods 7a and 7b are slidably supported, and a bracket 8 having a concave cross section is fixed to the tip ends of the guide rods 7a and 7b.
このブラケット８には、軸受９を介して所定幅（略タ
イヤ成形材料Ｗの幅）を有するエアーブラダーロール等
の仮圧着ローラ10の両端が回転可能に支持され、この仮
圧着ローラ10は、中心軸11を中心として一定の空気圧
（約0.2kg）を封入したゴム製の袋体により構成されて
いる。Both ends of a temporary pressure roller 10 such as an air bladder roll having a predetermined width (approximately the width of the tire molding material W) are rotatably supported by the bracket 8 via bearings 9. It is composed of a rubber bag body in which a constant air pressure (about 0.2 kg) is enclosed around the shaft 11.
前記、エアーブラダーロールから成る仮圧着ローラ10
を支持するブラケット８の中央部には、支持フレーム６
に取付けられシリンダ12のロッド13の先端が連結され、
このシリンダ12を作動させることにより、仮圧着ローラ
10がガイドロッド7a,7bにガイドされて成形ドラム１に
貼付けられるタイヤ成形材料Ｗに圧着するようになって
いる。The temporary pressure roller 10 composed of the air bladder roll
At the center of the bracket 8 that supports the
Attached to the end of the rod 13 of the cylinder 12,
By operating this cylinder 12, the temporary pressure roller
The guide rod 10 is guided by the guide rods 7a and 7b to be pressure-bonded to the tire molding material W attached to the molding drum 1.
前記仮圧着ローラ10は、上記のように一定の空気圧が
封入されたゴム製の袋体により構成されているので、タ
イヤ成形材料Ｗに圧着した時には、その形状に追従して
変形すると共に密着する。従って、このような状態で、
成形ドラム１を回転させると、タイヤ成形材料Ｗは成形
ドラム１上のカーカスに平に仮付けされた状態で貼付け
られることになる。Since the temporary pressure-bonding roller 10 is composed of a rubber bag body in which a constant air pressure is enclosed as described above, when pressure-bonded to the tire molding material W, the pressure-bonding roller 10 conforms to its shape and deforms and comes into close contact. . Therefore, in this state,
When the molding drum 1 is rotated, the tire molding material W is attached to the carcass on the molding drum 1 in a state of being temporarily laid flat.
以上のように、仮圧着ローラ10を成形ドラム１の外周
面に貼付けられたタイヤ成形材料Ｗに対して進退，かつ
圧着可能に構成し、第１段階のグリーンタイヤ成形工程
において、ステッチングローラをかける前に、前記仮圧
着ローラ10をタイヤ成形材料Ｗに対して一定の圧力によ
り圧着させると共に、その形状に追従させ、成形ドラム
１を回転させることによりタイヤ成形材料Ｗの側縁部に
おける波状部分の手直しや、エアー溜りを除く作業を、
人手を介することなく自動的に行うことが出来、従っ
て、生産性の向上を図ると共に、品質の向上を図ること
が出来るのである。As described above, the temporary pressure bonding roller 10 is configured to be capable of advancing and retreating and pressure bonding to the tire molding material W attached to the outer peripheral surface of the molding drum 1, and the stitching roller is used in the first stage green tire molding process. Before being applied, the temporary pressure-bonding roller 10 is pressure-bonded to the tire molding material W with a constant pressure, and the shape thereof is followed, and the molding drum 1 is rotated to cause a wavy portion in the side edge portion of the tire molding material W. Reworking and removing the air traps
It can be performed automatically without human intervention, and therefore, productivity can be improved and quality can be improved.
また、第４図は仮圧着装置の他の実施例を示し、エア
ーブラダーロールから成る仮圧着ローラ10の代わりに、
一定の形状、即ちタイヤ成形材料Ｗの形状に追従する形
状に形成したスポンジロール等から成る弾性体仮圧着ロ
ーラ10aを用いたもので、この仮圧着ローラ10aを用いる
場合には、同一形状のタイヤ成形材料Ｗを、成形ドラム
１に対して連続して仮圧着させる場合に使用する。Further, FIG. 4 shows another embodiment of the temporary pressure bonding device, in place of the temporary pressure bonding roller 10 composed of an air bladder roll,
An elastic temporary pressure roller 10a made of a sponge roll or the like formed in a constant shape, that is, a shape following the shape of the tire molding material W is used. When the temporary pressure roller 10a is used, the tires having the same shape are used. It is used when the molding material W is continuously pressure-bonded to the molding drum 1.
即ち、上記第１実施例における仮圧着ローラ10の場合
には、タイヤ成形材料Ｗの段取り替えによるタイヤ成形
材料Ｗの形状が変化しても、その形状に追従して使用す
ることが出来るが、仮圧着ローラ10aの場合には、予め
一定の形状に形成されているので、同一形状のタイヤ成
形材料Ｗを連続的に貼付けて仮圧着させる場合には便利
である。That is, in the case of the temporary pressing roller 10 in the first embodiment, even if the shape of the tire molding material W changes due to the setup change of the tire molding material W, it can be used by following the shape. In the case of the temporary pressure bonding roller 10a, since it is formed in a fixed shape in advance, it is convenient when the tire molding material W having the same shape is continuously stuck and temporarily pressed.
なお、その他の構成及び作用効果については上記第１
実施例と同様なので、同一符号を付して説明は省略す
る。In addition, regarding other configurations and operational effects,
Since it is the same as the embodiment, the same reference numerals are given and the description is omitted.
なお、上記の実施例では成形ドラム１に対して両側に
貼付けられるタイヤ成形材料Ｗに対して、２組の仮圧着
ブラダー装置5a,5bを使用しているが、これに限定され
ず成形ドラム１の幅を有する１本の仮圧着ローラ10、10
aを備えた仮圧着装置により、仮圧着させることも可能
である。In the above embodiment, two sets of temporary press-bonding bladder devices 5a and 5b are used for the tire molding material W attached to both sides of the molding drum 1, but the invention is not limited to this. One provisional pressure bonding roller 10, 10 having a width of
It is also possible to perform temporary pressure bonding with a temporary pressure bonding device equipped with a.
この発明は、上記のように第１段階のグリーンタイヤ
成形工程において、成形ドラムに巻付けられたタイヤ成
形材料にステッチングローラをかける前に、前記所定の
形状を有するタイヤ成形材料に対して、その形状に追従
する少なくとも一本以上の仮圧着ローラを一定の圧力に
より圧着させ、前記成形ドラムを回転させることにより
タイヤ成形材料を成形ドラムに対して仮圧着するので、
タイヤ成形材料の側縁部における波状部分の直しやエア
ー溜りを除く作業を、人手を介することなく自動的に行
い、生産性の向上を図ると共に、品質の向上を図ること
が出来る効果がある。The present invention, as described above, in the first stage green tire molding process, before applying the stitching roller to the tire molding material wound around the molding drum, with respect to the tire molding material having the predetermined shape, At least one or more temporary pressure-bonding rollers that follow the shape are pressure-bonded with a constant pressure, and the tire molding material is temporarily pressure-bonded to the molding drum by rotating the molding drum,
There is an effect that the work of removing the corrugated portion and the air accumulation in the side edge portion of the tire molding material can be automatically performed without human intervention to improve productivity and quality.
第１図は、この発明を実施した大型ラジアルタイヤの第
１段階のグリーンタイヤ成形工程における仮圧着方法を
実施するための仮圧着装置の作動状態の説明図、第２図
及び第３図は、仮圧着装置の一部縦断正面図と側面図、
第４図は他の実施例を示す仮圧着装置の作動状態の説明
図、第５図は従来の成形ドラムに対してタイヤ成形材料
を貼付けた状態を示す説明図である。 １……成形ドラム、5a,5b……仮圧着ブラダー装置、 ６……支持フレーム、7a,7b……ガイドロッド、 10,10b……仮圧着ローラ、12……シリンダ、 Ｗ……タイヤ成形材料。FIG. 1 is an explanatory view of an operating state of a temporary pressure bonding apparatus for performing a temporary pressure bonding method in a first-stage green tire molding process of a large radial tire in which the present invention is implemented, FIG. 2 and FIG. Partial vertical front view and side view of the temporary pressure bonding device,
FIG. 4 is an explanatory view of an operating state of a temporary pressure bonding apparatus showing another embodiment, and FIG. 5 is an explanatory view showing a state in which a tire molding material is attached to a conventional molding drum. 1 ... Molding drum, 5a, 5b ... Temporary pressure bonding bladder device, 6 ... Support frame, 7a, 7b ... Guide rod, 10,10b ... Temporary pressure bonding roller, 12 ... Cylinder, W ... Tire molding material ..
Claims (3)
て、成形ドラムに巻付けられたタイヤ成形材料にステッ
チングローラをかける前で、前記所定の形状を有するタ
イヤ成形材料に対して、その形状に追従する少なくとも
一本以上の仮圧着ローラを一定の圧力により圧着させ、
前記成形ドラムを回転させることによりタイヤ成形材料
を成形ドラムに対して仮圧着することを特徴とするタイ
ヤ成形工程に於ける仮圧着方法。1. In the first step of forming a green tire, before a stitching roller is applied to the tire molding material wound around a molding drum, the tire molding material having the above-mentioned predetermined shape is formed into its shape. At least one or more following temporary pressure bonding rollers are pressure bonded by a constant pressure,
A temporary pressure bonding method in a tire molding process, characterized in that the tire molding material is temporarily pressure bonded to the molding drum by rotating the molding drum.
状に追従する所定幅を有するエアーブラダーローラであ
る特許請求の範囲第１項に記載のタイヤ成形工程に於け
る仮圧着方法。2. The temporary pressure bonding method in the tire molding step according to claim 1, wherein the temporary pressure bonding roller is an air bladder roller having a predetermined width that follows the shape of the tire molding material.
状に追従する所定幅を有するスポンジローラである特許
請求の範囲第１項に記載のタイヤ成形工程に於ける仮圧
着方法。3. The temporary pressure bonding method in the tire molding step according to claim 1, wherein the temporary pressure bonding roller is a sponge roller having a predetermined width that follows the shape of the tire molding material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62234861A JP2534514B2 (en) | 1987-09-21 | 1987-09-21 | Temporary pressure bonding method in tire molding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62234861A JP2534514B2 (en) | 1987-09-21 | 1987-09-21 | Temporary pressure bonding method in tire molding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6478826A JPS6478826A (en) | 1989-03-24 |
| JP2534514B2 true JP2534514B2 (en) | 1996-09-18 |
Family
ID=16977495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62234861A Expired - Lifetime JP2534514B2 (en) | 1987-09-21 | 1987-09-21 | Temporary pressure bonding method in tire molding process |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2534514B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE602007000888D1 (en) * | 2006-06-16 | 2009-05-28 | Michelin Soc Tech | Method for applying a reinforced carcass ply. |
| JP2013119181A (en) * | 2011-12-06 | 2013-06-17 | Bridgestone Corp | Press-bonding device for end of inner liner material and press-bonding method for end of inner liner material |
| JP7040045B2 (en) * | 2018-01-25 | 2022-03-23 | 住友ゴム工業株式会社 | Presser for tire molding |
| JP7176319B2 (en) * | 2018-09-20 | 2022-11-22 | 住友ゴム工業株式会社 | Method and apparatus for manufacturing rubber member |
| NL2029074B1 (en) * | 2021-08-27 | 2023-03-15 | Vmi Holland Bv | Cover for a tire building drum, transfer wheel, tire building drum and method for tire building |
-
1987
- 1987-09-21 JP JP62234861A patent/JP2534514B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6478826A (en) | 1989-03-24 |
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