JPH07148738A - Center mechanism of tire vulcanizing machine and tire supply/take-out method - Google Patents
Center mechanism of tire vulcanizing machine and tire supply/take-out methodInfo
- Publication number
- JPH07148738A JPH07148738A JP29659993A JP29659993A JPH07148738A JP H07148738 A JPH07148738 A JP H07148738A JP 29659993 A JP29659993 A JP 29659993A JP 29659993 A JP29659993 A JP 29659993A JP H07148738 A JPH07148738 A JP H07148738A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- pressing member
- state
- pressing
- pressing members
- 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
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)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0645—Devices for inserting vulcanising cores, i.e. bladders, into the tyres; Closing the press in combination herewith
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ブラダーを使用しない
タイヤ加硫機の中心機構及びタイヤの供給・取出方法に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a central mechanism of a tire vulcanizer which does not use a bladder, and a tire supply / removal method.
【０００２】[0002]
【従来の技術】タイヤ加硫機には、タイヤ加硫時、加熱
加圧媒体をブラダーを介してタイヤの内方へ導入する方
式のものと、ブラダーを使用せず、加熱加圧媒体をタイ
ヤの内方へ直接導入する方式ものとがある。ブラダーを
使用しないタイヤ加硫機では、生タイヤのビード部の径
よりも大きな径の押圧円板を全周域にわたり細分割する
一方、各分割片を半径方向内外方へ拡縮可能に構成し、
同各分割片を縮小させて、生タイヤ内へ挿入した後、拡
径して、押圧、成形するようにしている（必要ならば、
特開平２−２１２１０５明細書、特開平２−５９３０５
号明細書を参照されたい）。2. Description of the Related Art Tire vulcanizers include a system in which a heating and pressurizing medium is introduced into the inside of the tire through a bladder during tire vulcanization, and a system in which the heating and pressurizing medium is used in the tire There is a method of introducing directly into the inside. In a tire vulcanizer that does not use a bladder, while subdividing the pressing disc having a diameter larger than the diameter of the bead portion of the raw tire over the entire circumference area, each divided piece is configured to be expandable and contractable inward and outward in the radial direction,
Each of the divided pieces is reduced, inserted into a raw tire, then expanded in diameter, pressed, and molded (if necessary,
JP-A-2-212105, JP-A-2-59305
See the specification).
【０００３】[0003]
【発明が解決しようとする課題】前記従来のタイヤ加硫
機の中心機構では、生タイヤのビード部の径よりも大き
な径の押圧円板を全周域にわたり再分割する一方、各分
割片を半径方向内外方へ拡縮可能に構成し、同各分割片
を縮小させて、生タイヤ内へ挿入した後、拡径して、押
圧、成形するようにしているので、部品点数が多い上
に、摺動部分が多くて、タイヤ加硫機の中心機構の構造
が複雑、高価になる。In the central mechanism of the conventional tire vulcanizer, a pressing disc having a diameter larger than the diameter of the bead portion of the raw tire is redivided over the entire circumference, while It is configured to be expandable and contractable inward and outward in the radial direction, and each of the divided pieces is reduced, and after being inserted into the raw tire, the diameter is expanded and pressed, so that the number of parts is large, Since there are many sliding parts, the structure of the central mechanism of the tire vulcanizer is complicated and expensive.
【０００４】また各押圧円板が多数の分割片よりなるの
で、寸法が狂い易くて、製品の品質が低下するという問
題があった。本発明は前記の問題点に鑑み提案するもの
であり、その目的とする処は、構造を簡単化できて、コ
ストを低減できる上に、製品の品質を向上できるタイヤ
加硫機の中心機構を提供しようとする点にある。Further, since each pressing disc is composed of a large number of divided pieces, there is a problem in that the dimensions are likely to change and the quality of the product deteriorates. The present invention is proposed in view of the above problems, and an object thereof is to simplify the structure, reduce the cost, and improve the quality of the product by a central mechanism of a tire vulcanizer. There is a point to offer.
【０００５】[0005]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明のタイヤ加硫機の中心機構は、ビードリン
グ金型に対向してタイヤビード部の内側面を成形する少
なくとも２つの押圧部材を有し、同各押圧部材を、中心
部と、同中心部の両端に対称的に形成した扇形部とによ
り構成し、同各押圧部材の中心部にそれぞれ取付けた各
軸を同心状に且つ相対回転及び軸方向移動を可能に組付
けて、同各押圧部材を、タイヤビード部の内側面を成形
する全円状態とタイヤビード部の内径よりも部分的に小
さくなる欠円状態とに選択可能にしている。In order to achieve the above object, the central mechanism of the tire vulcanizer of the present invention comprises at least two inner surfaces of the tire bead portion which are opposed to the bead ring mold. Each pressing member has a central portion and fan-shaped portions symmetrically formed on both ends of the central portion, and each shaft attached to the central portion of each pressing member is concentric. In addition, the relative pressing and axial movement is possible, and each pressing member is in a full circle state in which the inner side surface of the tire bead portion is molded and in an oval state in which the inner diameter of the tire bead portion is partially reduced. Is selectable.
【０００６】また本発明のタイヤの供給・取出方法は、
タイヤ供給時には、各押圧部材を欠円状態にし、生タイ
ヤを同各押圧部材の側方位置に立てた状態に供給した
後、この生タイヤをタイヤビード部Ｔ1 付近を中心に押
圧部材の方向に倒伏させながら各押圧部材の周りに横向
きにセットし、タイヤ取出時には、各押圧部材を欠円状
態にした後、完成タイヤを逆方向に移動させることを特
徴としている。Further, the tire supply / removal method of the present invention is
At the time of supplying the tire, each pressing member is made into an oval state, and the raw tire is supplied in a state of standing in a lateral position of each pressing member. Then, the raw tire is directed around the tire bead portion T 1 in the direction of the pressing member. It is characterized in that it is set laterally around each pressing member while lying down, and when the tire is taken out, each pressing member is made into an oval state and then the completed tire is moved in the opposite direction.
【０００７】[0007]
【作用】本発明のタイヤ加硫機の中心機構は前記のよう
にビードリング金型に対向してタイヤビード部の内側面
を成形する少なくとも２つの押圧部材を有し、同各押圧
部材を、中心部と、同中心部の両端に対称的に形成した
扇形部とにより構成し、同各押圧部材の中心部にそれぞ
れ取付けた各軸を同心状に且つ相対回転及び軸方向移動
を可能に組付けて、同各押圧部材を、タイヤビード部の
内側面を成形する全円状態とタイヤビード部の内径より
も部分的に小さくなる欠円状態とに選択可能にし、タイ
ヤ供給時には、各押圧部材を欠円状態にし、生タイヤを
同各押圧部材の側方位置に立てた状態に供給した後、こ
の生タイヤをタイヤビード部Ｔ1 付近を中心に押圧部材
の方向に倒伏させながら各押圧部材の周りに横向きにセ
ットし、タイヤ取出時には、各押圧部材を欠円状態にし
た後、完成タイヤを逆方向に移動させる。The central mechanism of the tire vulcanizer of the present invention has at least two pressing members facing the bead ring mold and molding the inner surface of the tire bead portion as described above. It is composed of a central part and fan-shaped parts symmetrically formed at both ends of the central part, and each shaft attached to the central part of each pressing member is assembled concentrically and capable of relative rotation and axial movement. In addition, each of the pressing members can be selected between a full-circle state in which the inner surface of the tire bead portion is molded and an open-circle state in which the inner diameter of the tire bead portion is partially smaller. After supplying the raw tire in a state in which the raw tire is erected at the lateral position of the respective pressing members, the raw tire is laid down in the direction of the pressing member around the tire bead portion T 1 as a center, and each pressing member is laid down. Place it sideways around the Sometimes, after each pressing member in the arcuate state, moves the finished tire in the opposite direction.
【０００８】[0008]
【実施例】次に本発明のタイヤ加硫機の中心機構を図１
〜図５に示す一実施例により説明する。図１、２の１、
２がビードリング金型に対向してタイヤの上側ビード部
内側面を成形する２個・１組の押圧部材、３、４がビー
ドリング金型に対向してタイヤの下側ビード部内側面を
成形する２個・１組の押圧部材で、これらの押圧部材１
〜４は、中心部Ａと、同中心部Ａの両端に対称的に形成
された扇形部Ｂ、Ｂとにより構成されている。なお扇形
部Ｂの円弧長さは、１／４円である。EXAMPLE Next, the central mechanism of the tire vulcanizer of the present invention is shown in FIG.
~ It demonstrates by one Example shown in FIG. 1 of FIGS.
2 for molding the inner surface of the upper bead portion of the tire facing the bead ring mold. A pair of pressing members, 3 and 4 molding the inner surface of the lower bead portion of the tire for facing the bead ring mold. These two pressing members are a set of two pressing members.
4 to 4 are composed of a central portion A and fan-shaped portions B, B symmetrically formed at both ends of the central portion A. The arc length of the fan-shaped portion B is 1/4 circle.
【０００９】ａが押圧部材１の中心部Ａの中心に取付け
た第１軸、ｂが押圧部材２の中心部Ａの中心に取付けた
第２軸、ｃが押圧部材３の中心部Ａの中心に取付けた第
３軸、ｄが押圧部材４の中心部Ａの中心に取付けた第４
軸で、第２軸ｂ〜第４軸ｄが中空に形成され、第１軸ａ
〜第４軸ｄが同心状に且つ相対回転及び軸方向移動を可
能に組付けられている。Reference symbol a is a first shaft attached to the center of the central portion A of the pressing member 1, b is a second shaft attached to the center of the central portion A of the pressing member 2, and c is the center of the central portion A of the pressing member 3. Attached to the third shaft, d is the fourth attached to the center of the central portion A of the pressing member 4.
In the shaft, the second shaft b to the fourth shaft d are formed to be hollow, and the first shaft a
The fourth axis d is assembled concentrically and is capable of relative rotation and axial movement.
【００１０】第１軸ａ及び第２軸ｂを９０°相対回転さ
せて、押圧部材１の２つの扇形部Ｂと押圧部材２の２つ
の扇形部Ｂとを重なり合わないようにする一方、第１軸
ａ及び第２軸ｂを軸方向に移動させ、押圧部材１、２の
上下方向の位相を一致させて、互いを合体させると、上
記４つの扇形部Ｂが環状の全円状態になる。このとき、
押圧部材１の２つの扇形部Ｂに設けたプロファイル１ａ
と押圧部材２の２つの扇形部Ｂに設けたプロファイル２
ａとが連続して、プロファイル押圧面が形成される。The first axis a and the second axis b are rotated relative to each other by 90 ° so that the two fan-shaped portions B of the pressing member 1 and the two fan-shaped portions B of the pressing member 2 do not overlap each other. When the 1st axis a and the 2nd axis b are moved in the axial direction, the vertical phases of the pressing members 1 and 2 are matched, and they are united with each other, the four fan-shaped portions B become a circular full circle. . At this time,
Profile 1a provided on the two fan-shaped portions B of the pressing member 1
And the profile 2 provided on the two fan-shaped portions B of the pressing member 2.
The profile pressing surface is formed continuously with a.
【００１１】押圧部材３、４側も同様で、第３軸ｃ及び
第４軸ｄを９０°相対回転させて、押圧部材３の２つの
扇形部Ｂと押圧部材４の２つの扇形部Ｂとを重なり合わ
ないようにする一方、第３軸ｃ及び第４軸ｄを軸方向に
移動させ、押圧部材３、４の上下方向の位相を一致させ
て、互いを合体させると、上記４つの扇形部Ｂが環状の
全円状態になる。このとき、押圧部材３の２つの扇形部
Ｂに設けたプロファイル３ａと押圧部材４の２つの扇形
部Ｂに設けたプロファイル４ａとが連続して、プロファ
イル押圧面が形成される。The same applies to the pressing members 3 and 4, and the third shaft c and the fourth shaft d are relatively rotated by 90 ° to form two fan-shaped portions B of the pressing member 3 and two fan-shaped portions B of the pressing member 4. When the third shaft c and the fourth shaft d are moved in the axial direction so that the pressing members 3 and 4 are in phase with each other in the vertical direction and are combined with each other, the above four fan-shaped The part B becomes a circular full circle. At this time, the profile 3a provided on the two fan-shaped portions B of the pressing member 3 and the profile 4a provided on the two fan-shaped portions B of the pressing member 4 are continuous to form a profile pressing surface.
【００１２】上記のように各押圧部材１、２の各扇形部
Ｂ、及び３、４の各扇形部Ｂが全円状態にあるとき、タ
イヤ内方域でタイヤビード部に押付ければ、タイヤビー
ド部が成形される。また第１軸ａ及び第２軸ｂを軸方向
に移動させて、押圧部材１、２を離隔させる一方、第１
軸ａ及び第２軸ｂを９０°相対回転させて、押圧部材１
の２つの扇形部Ｂと押圧部材２の２つの扇形部Ｂとを重
なり合わせれば、押圧部材１、２が欠円状態になる。As described above, when the fan-shaped portions B of the pressing members 1 and 2 and the fan-shaped portions B of 3 and 4 are in a full circle, if the tire is pressed against the tire bead portion in the tire inner region, The bead portion is molded. The first shaft a and the second shaft b are moved in the axial direction to separate the pressing members 1 and 2 from each other, while
The shaft a and the second shaft b are relatively rotated by 90 °, and the pressing member 1
If the two fan-shaped portions B of 2 and the two fan-shaped portions B of the pressing member 2 are overlapped with each other, the pressing members 1 and 2 are in an open circle state.
【００１３】押圧部材３、４側も同様で、第３軸ｃ及び
第４軸ｄを軸方向に移動させて、押圧部材３、４を離隔
させる一方、第３軸ｃ及び第４軸ｄを９０°相対回転さ
せて、押圧部材３の２つの扇形部Ｂと押圧部材４の２つ
の扇形部Ｂとを重なり合わせれば、押圧部材３、４が欠
円状態になる。押圧部材１、２と、押圧部材３、４とを
上記のように欠円状態にすると、押圧部材１、２と、押
圧部材３、４とが部分的にタイヤビード部の内径よりも
小さくなって、これらの押圧部材がタイヤビード部に干
渉せずにタイヤビード部の内方を通過する。The same applies to the pressing members 3 and 4 side, and the third shaft c and the fourth shaft d are moved in the axial direction to separate the pressing members 3 and 4, while the third shaft c and the fourth shaft d are separated. When the two fan-shaped portions B of the pressing member 3 and the two fan-shaped portions B of the pressing member 4 are overlapped with each other by rotating 90 ° relative to each other, the pressing members 3 and 4 are in an open circle state. When the pressing members 1 and 2 and the pressing members 3 and 4 are made in the truncated shape as described above, the pressing members 1 and 2 and the pressing members 3 and 4 are partially smaller than the inner diameter of the tire bead portion. Then, these pressing members pass through the inside of the tire bead portion without interfering with the tire bead portion.
【００１４】図３の５がタイヤ加硫機の下熱板で、同下
熱板５には、下金型７と下ビードリング８とが取付けら
れ、同下熱板６の中心部には、ガイド部材６が取付けら
れ、同ガイド部材６が前記第１軸ａ〜第４軸ｄを支持し
ている。そして第１軸ａ乃至第４軸ｄがタイヤ加硫機の
下方へ延長され、公知のシリンダ、ねじ棒、モータ等に
より、相対回転及び軸方向移動が可能になっている。3 is a lower hot plate of the tire vulcanizer. A lower mold 7 and a lower bead ring 8 are attached to the lower hot plate 5, and a lower hot plate 6 has a central portion. A guide member 6 is attached, and the guide member 6 supports the first shaft a to the fourth shaft d. The first shaft a to the fourth shaft d are extended below the tire vulcanizer, and can be relatively rotated and moved in the axial direction by a known cylinder, screw rod, motor, or the like.
【００１５】次に前記図１乃至図５に示すタイヤ加硫機
の中心機構の作用を具体的に説明する。図３に示すよう
に押圧部材１、２、及び押圧部材３、４を重ね合わせ、
幅の狭い欠円状態にして、下金型７の上方に待機させ
る。またローダＬにより、生タイヤＴの外部側を把持し
て、押圧部材１〜４の側方位置に立てた状態に供給す
る。このとき、生タイヤＴの下側ビード部Ｔ1 を第４軸
ｄに接触させない位置に停止させる。この状態を生タイ
ヤＴの軸中心方向から見たのが図４である。Next, the operation of the central mechanism of the tire vulcanizer shown in FIGS. 1 to 5 will be specifically described. As shown in FIG. 3, the pressing members 1 and 2 and the pressing members 3 and 4 are overlapped,
A narrow circle with a narrow width is made to stand by above the lower mold 7. Further, the outside of the raw tire T is gripped by the loader L, and the raw tire T is supplied to the pressing members 1 to 4 in a standing state at the lateral position. At this time, the lower bead portion T 1 of the raw tire T is stopped at a position where it does not contact the fourth shaft d. This state is seen from the axial center direction of the raw tire T in FIG.
【００１６】次いでローダＬにより、生タイヤＴのビー
ド部Ｔ1 付近を中心に生タイヤＴを倒伏（回転）させ
る。この倒伏（回転）により、生タイヤＴのビード部Ｔ
2 が矢印方向へ移動し、生タイヤＴが破線により示す水
平状態にセットされて、押圧部材１〜４が生タイヤＴに
より取り囲まれる。次いでローダＬより、生タイヤＴを
破線位置→一点鎖線位置へ移動させて、生タイヤＴの軸
心と押圧部材１〜４の軸心とを一致させる。Then, the loader L causes the raw tire T to fall (rotate) around the bead portion T 1 of the raw tire T as a center. Due to this fall (rotation), the bead portion T of the raw tire T
2 moves in the direction of the arrow, the raw tire T is set in the horizontal state indicated by the broken line, and the pressing members 1 to 4 are surrounded by the raw tire T. Next, the raw tire T is moved from the loader L to the position indicated by the dashed line to the position indicated by the alternate long and short dash line so that the axial center of the raw tire T and the axial center of the pressing members 1 to 4 are aligned.
【００１７】次いで第２軸ｂにより押圧部材２を回転さ
せ、第３軸ｃにより押圧部材３を回転させた後、押圧部
材２を押圧部材１に合体させて、全円状態にする一方、
押圧部材３を押圧部材４に合体させて、全円状態にす
る。次いで押圧部材１、２を上方へ移動させ、同押圧部
材１、２を水平に保持した生タイヤＴの上側ビード部Ｔ
2 に着座させて、同上側ビード部Ｔ2 を押圧する一方、
押圧部材３、４を下方へ移動させ、同押圧部材３、４を
同生タイヤＴの下側ビード部Ｔ1 に着座させて、同下側
ビード部Ｔ1 を押圧する。Then, the pressing member 2 is rotated by the second shaft b and the pressing member 3 is rotated by the third shaft c, and then the pressing member 2 is united with the pressing member 1 to form a full circle, while
The pressing member 3 is united with the pressing member 4 to form a complete circle. Next, the pressing members 1 and 2 are moved upward, and the upper bead portion T of the raw tire T in which the pressing members 1 and 2 are horizontally held.
While sitting on 2 , press the upper bead portion T 2 while
The pressing members 3 and 4 are moved downward, the pressing members 3 and 4 are seated on the lower bead portion T 1 of the raw tire T, and the lower bead portion T 1 is pressed.
【００１８】次いでローダＬによる生タイヤＴの把持を
解除して、ローダＬを退去させる。この状態を図５の右
半部に示した。次いで押圧部材１、２と、押圧部材３、
４と、生タイヤＴとを上記の状態のまま下降させ、押圧
部材３、４を下金型７のビードリング８に嵌合させて、
生タイヤＴの下側ビードリングＴ1 を押圧部材３、４と
ビードリング８とにより挟持する。Next, the grip of the green tire T by the loader L is released, and the loader L is retreated. This state is shown in the right half of FIG. Next, the pressing members 1 and 2, and the pressing member 3,
4 and the green tire T are lowered in the above state, and the pressing members 3 and 4 are fitted to the bead ring 8 of the lower mold 7,
The lower bead ring T 1 of the green tire T is sandwiched between the pressing members 3 and 4 and the bead ring 8.
【００１９】次いで上部熱板１１に取付けた上金型９及
びビードリング１０を下降させ、押圧部材１、２を上金
型９のビードリング１０に嵌合させて、生タイヤＴの上
側ビードリングＴ2 を押圧部材１、２とビードリング１
０とにより挟持する。この状態を図５の左半部に示し
た。次いで生タイヤＴ内に圧力媒体を導入する。このと
き、生タイヤＴの下側ビードリングＴ1 は、押圧部材
３、４とビードリング８とにより挟持され、生タイヤＴ
の上側ビードリングＴ2 は、押圧部材１、２とビードリ
ング１０とにより挟持されているので、生タイヤＴが上
記圧力媒体により膨張、成形される。上記上金型９は、
引続き下降し、下部金型６に接近して、上金型９と下金
型６とが閉じられる。Next, the upper mold 9 and the bead ring 10 attached to the upper hot plate 11 are lowered, the pressing members 1 and 2 are fitted into the bead ring 10 of the upper mold 9, and the upper bead ring of the green tire T is fitted. T 2 is pressed member 1, 2 and bead ring 1
It is clamped by 0. This state is shown in the left half of FIG. Next, a pressure medium is introduced into the green tire T. At this time, the lower bead ring T 1 of the raw tire T is sandwiched between the pressing members 3 and 4 and the bead ring 8, and the raw tire T
Since the upper bead ring T 2 is sandwiched between the pressing members 1 and 2 and the bead ring 10, the raw tire T is expanded and molded by the pressure medium. The upper die 9 is
Then, it descends and approaches the lower mold 6, and the upper mold 9 and the lower mold 6 are closed.
【００２０】金型閉鎖後、生タイヤＴ内の圧力を高圧、
高温媒体に切り換えて、生タイヤＴの各部を軟化させ、
金型に押し付けて、成形作業と加硫作業とを開始する。
加硫終了後は、逆の手順で金型を開く一方、押圧部材
１、２と、押圧部材３、４とを欠円状態にし、ローダＬ
により完成タイヤの外部側を把持し、完成タイヤを水平
状態から立てた状態に回転させて、タイヤ加硫機外へ取
り出す。After closing the mold, the pressure inside the green tire T is increased to
Switch to a high temperature medium to soften each part of the green tire T,
Press on the mold and start the molding and vulcanization work.
After the vulcanization is completed, the mold is opened in the reverse order, while the pressing members 1 and 2 and the pressing members 3 and 4 are made into an open circle state, and the loader L
Then, the outer side of the finished tire is gripped, the finished tire is rotated from a horizontal state to an upright state, and taken out of the tire vulcanizer.
【００２１】[0021]
【発明の効果】本発明のタイヤ加硫機の中心機構は前記
のようにビードリング金型に対向してタイヤビード部の
内側面を成形する少なくとも２つの押圧部材を有し、同
各押圧部材を、中心部と、同中心部の両端に対称的に形
成した扇形部とにより構成し、同各押圧部材の中心部に
それぞれ取付けた各軸を同心状に且つ相対回転及び軸方
向移動を可能に組付けて、同各押圧部材を、タイヤビー
ド部の内側面を成形する全円状態とタイヤビード部の内
径よりも部分的に小さくなる欠円状態とに選択可能に
し、タイヤ供給時には、各押圧部材を欠円状態にし、生
タイヤを同各押圧部材の側方位置に立てた状態に供給し
た後、この生タイヤをタイヤビード部Ｔ1 付近を中心に
押圧部材の方向に倒伏させながら各押圧部材の周りに横
向きにセットし、タイヤ取出時には、各押圧部材を欠円
状態にした後、完成タイヤを逆方向に移動させるので、
前記従来のように生タイヤのビード部の径よりも大きな
径の押圧円板を全周域にわたり細分割する一方、各分割
片を半径方向内外方へ拡縮可能に構成する必要がなく，
構造を簡単化できて、コストを低減できる。As described above, the central mechanism of the tire vulcanizer of the present invention has at least two pressing members facing the bead ring mold and molding the inner side surface of the tire bead portion. Is composed of a central part and fan-shaped parts symmetrically formed at both ends of the central part, and the shafts respectively attached to the central parts of the pressing members can be concentrically and relatively rotated and moved in the axial direction. Assembled to each of the pressing members, it is possible to select a full circle state in which the inner surface of the tire bead portion is molded and an open circle state in which the inner diameter of the tire bead portion is partially smaller, and at the time of tire supply, each After pressing the pressing member into an eclipsed state and supplying the raw tire to the standing position at the lateral position of each pressing member, the raw tire is laid down in the direction of the pressing member around the tire bead portion T 1 as a center. Set it sideways around the pressing member and Ya when unloading, after each pressing member in the arcuate state, moves the finished tire in the reverse direction,
While subdividing the pressing disc having a diameter larger than the diameter of the bead portion of the raw tire as in the conventional art, it is not necessary to configure each divided piece to be expandable and contractable inward and outward in the radial direction,
The structure can be simplified and the cost can be reduced.
【００２２】また前記従来のように生タイヤのビード部
の径よりも大きな径の押圧円板を全周域にわたり細分割
する一方、各分割片を半径方向内外方へ拡縮可能に構成
する必要がなくて、製品の品質を向上できる。Further, as in the prior art, the pressing disc having a diameter larger than the diameter of the bead portion of the raw tire must be subdivided over the entire circumference, while each divided piece must be configured to be expandable and contractable inward and outward in the radial direction. Can improve the quality of the product.
【図１】本発明のタイヤ加硫機の中心機構の一実施例を
示す平面図である。FIG. 1 is a plan view showing an embodiment of a central mechanism of a tire vulcanizer of the present invention.
【図２】図１の矢視Ｘ−Ｘ線に沿う縦断側面図である。FIG. 2 is a vertical sectional side view taken along the line XX of FIG.
【図３】欠円状態で待機した各押圧部材に対して生タイ
ヤを供給したときの状態を示す縦断側面図である。FIG. 3 is a vertical cross-sectional side view showing a state in which a raw tire is supplied to each pressing member that is on standby in an open circle state.
【図４】図３の状態を生タイヤ側から見た正面図であ
る。FIG. 4 is a front view of the state of FIG. 3 viewed from the raw tire side.
【図５】右半部は生タイヤを上下押圧部材により水平状
態に保持している状態を示す縦断側面図、左半部は金型
の閉鎖直前の状態を示す縦断側面図である。FIG. 5 is a vertical sectional side view showing a state where a raw tire is held in a horizontal state by a vertical pressing member, and a left half portion is a longitudinal side view showing a state immediately before the mold is closed.
１、２ 上側の押圧部材 ３、４ 下側の押圧部材 ７ ビードリング金型（下金型） ９ ビードリング金型（上金型） Ａ 押圧部材１〜４の中心部 Ｂ 押圧部材１〜４の扇形部 ａ 押圧部材１の軸 ｂ 押圧部材２の軸 ｃ 押圧部材３の軸 ｄ 押圧部材４の軸 1, 2 Upper pressing member 3, 4 Lower pressing member 7 Bead ring mold (lower mold) 9 Bead ring mold (upper mold) A Central part of pressing members 1 to 4 B Pressing members 1 to 4 Fan-shaped part a Shaft of pressing member 1 Shaft of pressing member 2 Shaft of pressing member 3 Shaft of pressing member 4
Claims (2)
ド部の内側面を成形する少なくとも２つの押圧部材を有
し、同各押圧部材を、中心部と、同中心部の両端に対称
的に形成した扇形部とにより構成し、同各押圧部材の中
心部にそれぞれ取付けた各軸を同心状に且つ相対回転及
び軸方向移動を可能に組付けて、同各押圧部材を、タイ
ヤビード部の内側面を成形する全円状態とタイヤビード
部の内径よりも部分的に小さくなる欠円状態とに選択可
能にしたことを特徴とするタイヤ加硫機の中心機構。1. At least two pressing members that face the bead ring mold and mold the inner side surface of the tire bead portion, the pressing members being symmetrical with respect to the central portion and both ends of the central portion. And the respective shafts respectively attached to the central portions of the respective pressing members are assembled concentrically and capable of relative rotation and axial movement, and the respective pressing members are attached to the tire bead portion. A central mechanism of a tire vulcanizer, which is selectable between a full circle state in which an inner surface is molded and an open circle state in which the inner diameter of a tire bead portion is partially reduced.
態にし、生タイヤを同各押圧部材の側方位置に立てた状
態に供給した後、この生タイヤをタイヤビード部Ｔ1 付
近を中心に押圧部材の方向に倒伏させながら各押圧部材
の周りに横向きにセットし、タイヤ取出時には、各押圧
部材を欠円状態にした後、完成タイヤを逆方向に移動さ
せることを特徴としたタイヤの供給・取出方法。2. When supplying tires, each pressing member is made into a truncated state, and the raw tire is supplied in a state of standing at a lateral position of each pressing member, and then the raw tire is centered around the tire bead portion T 1. Set laterally around each pressing member while laying down in the direction of the pressing member, and at the time of taking out the tire, after making each pressing member in an oval state, of the tire characterized by moving the completed tire in the opposite direction. How to supply and take out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29659993A JP3192848B2 (en) | 1993-11-26 | 1993-11-26 | Central mechanism of tire vulcanizer and supply / removal method of tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29659993A JP3192848B2 (en) | 1993-11-26 | 1993-11-26 | Central mechanism of tire vulcanizer and supply / removal method of tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07148738A true JPH07148738A (en) | 1995-06-13 |
| JP3192848B2 JP3192848B2 (en) | 2001-07-30 |
Family
ID=17835639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29659993A Expired - Fee Related JP3192848B2 (en) | 1993-11-26 | 1993-11-26 | Central mechanism of tire vulcanizer and supply / removal method of tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3192848B2 (en) |
-
1993
- 1993-11-26 JP JP29659993A patent/JP3192848B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3192848B2 (en) | 2001-07-30 |
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