JPH04369513A - Tire vulcanizing press - Google Patents
Tire vulcanizing pressInfo
- Publication number
- JPH04369513A JPH04369513A JP17432691A JP17432691A JPH04369513A JP H04369513 A JPH04369513 A JP H04369513A JP 17432691 A JP17432691 A JP 17432691A JP 17432691 A JP17432691 A JP 17432691A JP H04369513 A JPH04369513 A JP H04369513A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- transmission rod
- hollow
- pressure transmission
- upper mold
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 229910052717 sulfur Inorganic materials 0.000 claims 1
- 239000011593 sulfur Substances 0.000 claims 1
- 230000003028 elevating effect Effects 0.000 abstract description 3
- 238000004073 vulcanization Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009467 reduction 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)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/20—Opening, closing or clamping
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、金型の開閉機構と加圧
機構とを完全に分離し、上金型を下金型に対して垂直昇
降によって開閉させるタイヤ加硫プレスに係わり、特に
、金型変更に伴う金型高さの調整を簡易迅速に行うこと
ができるものに関する。[Field of Industrial Application] The present invention relates to a tire vulcanizing press in which the mold opening/closing mechanism and the pressurizing mechanism are completely separated, and the upper mold is opened and closed by vertically moving up and down relative to the lower mold. This invention relates to a tool that allows the height of the mold to be easily and quickly adjusted when changing the mold.
【０００２】0002
【従来の技術】従来、この種のタイヤ加硫プレスとして
は図５に示すものがある。2. Description of the Related Art Conventionally, there is a tire curing press of this type as shown in FIG.
【０００３】図５において、プレスフレーム５１は上部
フレーム５１ａ、下部フレーム５１ｂ及びサイドフレー
ム５１ｃから構成されており、下部フレーム５１ｂには
下金型５２が固定されている。この下金型５２に開閉自
在とされる上金型５３は上モールド取付部材５４に固定
されており、この上モールド取付部材５４はサイドフレ
ーム５１ｃに設けられた垂直昇降用ガイド５５に沿って
昇降自在である。上モールド取付部材５４の上面には雄
ネジ軸５６が固定金具５７を介して垂直昇降部材として
立設されており、この雄ネジ軸５６の上部はベベルギヤ
５８の中空部に固設した雌ネジ筒体５９に螺合されてい
る。そしてベベルギヤ５８は上部フレーム５１ａ上に設
置された正逆回転自在なトルクモータ６０の駆動軸６０
ａに減速機６１を介して連結されたベベルギヤ６２と噛
み合わされている。上部フレーム５１ａの下面には中空
加圧シリンダ６４が固設されており、この中空部に略円
筒状の加圧部材６３が挿通されている。中空加圧シリン
ダ６４のピストン部６５下端には、加圧部材６３の周側
に把合して中空加圧シリンダ６４の加圧力を加圧部材６
３に対して係脱自在に伝達するための係脱装置６６が設
けられている。加圧部材６３と上モールド取付部材５４
との間を連絡する筒状の調整金具６７は、雄ネジ軸５６
、加圧部材６３と同心で、その下端は押さえ金具６８に
より上モールド取付部材５４の上面に可回動に取り付け
られ、その上端は相互螺合のネジ部６９によって加圧部
材６３の下部に回動自在に連結されている。In FIG. 5, a press frame 51 is composed of an upper frame 51a, a lower frame 51b, and a side frame 51c, and a lower mold 52 is fixed to the lower frame 51b. An upper mold 53 that can be opened and closed by the lower mold 52 is fixed to an upper mold attachment member 54, and the upper mold attachment member 54 is raised and lowered along a vertical lifting guide 55 provided on a side frame 51c. It is free. A male threaded shaft 56 is erected on the upper surface of the upper mold mounting member 54 as a vertical lifting member via a fixing fitting 57, and the upper part of this male threaded shaft 56 is connected to a female threaded cylinder fixed in the hollow part of the bevel gear 58. It is screwed into the body 59. The bevel gear 58 is connected to a drive shaft 60 of a torque motor 60 that is installed on the upper frame 51a and is rotatable in forward and reverse directions.
It is meshed with a bevel gear 62 connected to a via a reduction gear 61. A hollow pressure cylinder 64 is fixed to the lower surface of the upper frame 51a, and a substantially cylindrical pressure member 63 is inserted into the hollow portion. The lower end of the piston portion 65 of the hollow pressurizing cylinder 64 is gripped to the circumferential side of the pressurizing member 63 to transfer the pressurizing force of the hollow pressurizing cylinder 64 to the pressurizing member 6.
An engagement/disengagement device 66 is provided for freely engaging and disengaging the transmission to and from 3. Pressure member 63 and upper mold mounting member 54
The cylindrical adjustment fitting 67 that communicates with the male threaded shaft 56
, is concentric with the pressure member 63, and its lower end is rotatably attached to the upper surface of the upper mold attachment member 54 by a presser metal fitting 68, and its upper end is rotated to the lower part of the pressure member 63 by a mutually threaded threaded portion 69. Connected for free movement.
【０００４】調整金具６７の中途には金型高さを可調整
とするフランジ形状の操作部７０が形成されている。図
６（図５のＣ−Ｃ断面図）に示すように操作部７０の周
側には係脱孔７１が複数個等分配設されており、この係
脱孔７１に調整棒７２を係止させて正逆回動させること
により、ネジ部６９における回動を介し、金型高さを所
望に調整することができる。そして、加圧部材６３の下
部に付設したロック金具７３のロックピン７４をバネ７
５を介して係脱孔７１に係脱自在に係止させることによ
り、調整後の加圧部材６３と調整金具６７の位置変化を
防いで固定している。[0004] A flange-shaped operating portion 70 is formed in the middle of the adjustment fitting 67 to allow the height of the mold to be adjusted. As shown in FIG. 6 (C-C sectional view in FIG. 5), a plurality of locking holes 71 are equally distributed on the circumferential side of the operating section 70, and an adjustment rod 72 is locked in the locking holes 71. By rotating the mold in the forward and reverse directions, the height of the mold can be adjusted as desired through the rotation of the threaded portion 69. Then, the lock pin 74 of the lock fitting 73 attached to the lower part of the pressure member 63 is attached to the spring 7.
5, the pressurizing member 63 and the adjustment fitting 67 are fixed while being prevented from changing their positions.
【０００５】このような構造のタイヤ加硫プレスの加硫
作業を図５に基づき以下に説明する。図５においては、
下金型５２上に上金型５３が垂直下降して既に閉合し、
また係脱装置６６が加圧部材６３と係合して加圧ピスト
ン６５の下降による加圧が行われている状態を示してい
る。このような型閉合加圧下に両型５２、５３内のグリ
ーンタイヤに対する加硫成形作業が完了したものとすれ
ば、係脱装置６６を開拡して加圧部材６３をフリーの状
態とする。そしてトルクモータ６０の駆動により、ベベ
ルギヤ６２、５８を介して雌ネジ筒体５９を回動させ、
雄ネジ軸５６を上昇させて上モールド取付部材５４を垂
直昇降用ガイド５５に沿って上昇させる。これにより、
上金型５３は上昇して下金型５２より開放避退され、加
圧部材６３も調整金具６７の連結を介して同行上昇する
。加硫済タイヤはタイヤ加硫プレス外に排出され、加硫
作業が終了する。次の加硫作業にあたっては、まず新し
いグリーンタイヤを下金型５２へ装入セットする。そし
てトルクモータ６０の逆転によりベベルギヤ６２等を介
して雄ネジ軸５６を下降させ、上モールド取付部材５４
及び加圧部材６３を下降させて両型５２、５３の閉合を
行う。さらに下降した加圧部材６３に対して係脱装置６
６を閉合係止させ、加圧シリンダ６４の加圧ピストン６
５を加圧下降させることにより、係脱装置６６を介し加
圧部材６３に加圧力が伝達されて型締め加圧が行われる
。また金型変更に伴う金型高さの変更調整は、調整金具
６７の操作部７０の周側に配設した係脱孔７１に調整棒
７２を係止させて正逆回動させ、これによりネジ部６９
における回動を介して上モールド取付部材５４を昇降さ
せることにより行う。The vulcanizing operation of the tire vulcanizing press having such a structure will be explained below with reference to FIG. In Figure 5,
The upper mold 53 is vertically lowered onto the lower mold 52 and is already closed.
Also shown is a state in which the engagement/disengagement device 66 is engaged with the pressure member 63 and pressure is applied by lowering the pressure piston 65. Assuming that the vulcanization molding work for the green tire in both molds 52 and 53 is completed under such mold closing and pressurization, the engaging and disengaging device 66 is opened to release the pressurizing member 63. Then, by driving the torque motor 60, the female threaded cylinder body 59 is rotated via the bevel gears 62 and 58,
The male threaded shaft 56 is raised to raise the upper mold mounting member 54 along the vertical lifting guide 55. This results in
The upper mold 53 rises and is opened and retracted from the lower mold 52, and the pressure member 63 also rises together via the connection of the adjustment fitting 67. The vulcanized tire is discharged outside the tire vulcanization press, and the vulcanization process is completed. In the next vulcanization operation, a new green tire is first charged and set into the lower mold 52. Then, by reversing the torque motor 60, the male threaded shaft 56 is lowered via the bevel gear 62, etc., and the upper mold mounting member 54 is lowered.
Then, the pressure member 63 is lowered to close both molds 52 and 53. The engaging/disengaging device 6
6 is closed and locked, and the pressurizing piston 6 of the pressurizing cylinder 64 is closed and locked.
By pressurizing and lowering 5, the pressurizing force is transmitted to the pressurizing member 63 via the locking/disengaging device 66, and mold clamping pressurization is performed. In addition, the height of the mold can be adjusted when changing the mold by locking the adjusting rod 72 in the locking/disengaging hole 71 provided on the circumferential side of the operating part 70 of the adjusting fitting 67 and rotating it forward and backward. Screw part 69
This is done by raising and lowering the upper mold mounting member 54 through the rotation in .
【０００６】[0006]
【発明が解決しようとする課題】従来の技術で述べたタ
イヤ加硫プレスでは、金型変更毎に調整棒７２を正逆回
動させて金型高さの調整を行う必要があり、さらに調整
後に加圧部材６３と調整金具６７との固定作業も行わな
ければならず、金型高さの調整のために多くの時間を要
する。この金型変更に伴う金型高さの調整としては、図
７に示すように上モールド取付部材８１の上面に設けら
れた立設部材８２と中空加圧シリンダ８３との間に複数
の出入自在なジャマ板８４を介装させることにより行う
ものもある。しかし、この複数のジャマ板８４の出し入
れによる高さ調整でも、ジャマ板８４の出し入れ操作に
多くの時間を要し、さらにジャマ板８４の厚み分だけの
高さ調整しかできないため、ジャマ板８４の数をかなり
多くしたとしても個々の金型に対応した所望の金型高さ
を得ることができないという問題点を有している。[Problems to be Solved by the Invention] In the tire curing press described in the prior art, it is necessary to adjust the height of the mold by rotating the adjustment rod 72 in forward and reverse directions every time the mold is changed. Afterwards, work to fix the pressure member 63 and the adjustment fitting 67 must be performed, and a lot of time is required to adjust the height of the mold. In order to adjust the height of the mold due to this mold change, as shown in FIG. In some cases, this is done by interposing a baffle plate 84. However, even when adjusting the height by inserting and removing the plurality of jammer plates 84, it takes a lot of time to insert and remove the jammer plates 84, and furthermore, the height can only be adjusted by the thickness of the jammer plates 84. Even if the number of molds is considerably increased, there is a problem that a desired mold height corresponding to each mold cannot be obtained.
【０００７】本発明は、従来の技術の有するこのような
問題点に鑑みてなされたものであり、その目的とすると
ころは、金型変更に対応して所望の金型高さを簡易、迅
速に調整することができるタイヤ加硫プレスを提供しよ
うとするものである。The present invention has been made in view of the above-mentioned problems of the conventional technology, and its purpose is to easily and quickly adjust the desired mold height in response to mold changes. The present invention aims to provide a tire curing press that can be adjusted to
【０００８】[0008]
【課題を解決するための手段】上記目的を解決するため
に、本発明のタイヤ加硫プレスは、上部フレーム、下部
フレーム及びサイドフレームからなるプレスフレームと
、下部フレームに下モールド取付部材を介して固定され
た下金型と、サイドフレームに沿って昇降自在な上モー
ルド取付部材に固定された上金型と、上部フレームに固
設された中空加圧シリンダと、上モールド取付部材から
上方に伸び中空加圧シリンダの中空部に挿通される加圧
伝達ロッドとを備えたタイヤ加硫プレスにおいて、前記
加圧伝達ロッドにネジ部を設け、前記中空加圧シリンダ
のピストン部に該ネジ部と噛み合うネジ部を有する開閉
自在な締付ナットを設け、該締付ナットのネジ部と前記
加圧伝達ロッドのネジ部間の隙間量を測定する位置検出
装置を設け、この隙間量を適正値にすべく中空加圧シリ
ンダに昇降指令を出す制御装置を設けたものである。[Means for Solving the Problems] In order to solve the above object, the tire curing press of the present invention includes a press frame consisting of an upper frame, a lower frame, and a side frame, and a lower mold attachment member attached to the lower frame. A fixed lower mold, an upper mold fixed to an upper mold mounting member that can be raised and lowered along the side frame, a hollow pressure cylinder fixed to the upper frame, and an upper mold extending upward from the upper mold mounting member. In a tire curing press equipped with a pressure transmission rod inserted into a hollow part of a hollow pressure cylinder, the pressure transmission rod is provided with a threaded part, and the threaded part engages with the piston part of the hollow pressure cylinder. A tightening nut having a threaded portion that can be opened and closed is provided, a position detection device is provided to measure the amount of clearance between the threaded portion of the tightening nut and the threaded portion of the pressure transmission rod, and the amount of this clearance is set to an appropriate value. This system is equipped with a control device that issues lift commands to the hollow pressurized cylinder.
【０００９】[0009]
【作用】金型高さの変更に伴い、軸方向にネジ部を設け
た加圧伝達ロッドは昇降し、昇降した位置での加圧伝達
ロッドのネジ部は、制御装置からの指令を受けてこの加
圧伝達ロッドのネジ部と適正隙間となるように昇降する
締付ナットのネジ部と開閉自在に噛み合う。[Operation] As the mold height changes, the pressure transmission rod with a threaded part in the axial direction moves up and down, and the threaded part of the pressure transmission rod at the raised and lowered position receives commands from the control device. It engages with the threaded part of the pressure transmission rod and the threaded part of the tightening nut which moves up and down so as to form an appropriate clearance.
【００１０】0010
【実施例】以下、本発明の実施例を図面を参照しつつ説
明する。図１は本発明のタイヤ加硫プレスの一部断面図
、図２は図１のＡ−Ａ断面図である。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partial sectional view of a tire curing press of the present invention, and FIG. 2 is a sectional view taken along line AA in FIG.
【００１１】図１において、プレスフレーム１は上部フ
レーム１ａ、下部フレーム１ｂ及びサイドフレーム１ｃ
から構成されており、下部フレーム１ｂには下モールド
取付部材２を介して下金型３が固定されている。この下
金型３に開閉自在とされる上金型４は上モールド取付部
材５に固定されており、上モールド取付部材５には上部
フレーム１ａの側部に設けられた昇降シリンダ６のピス
トン部７の端部が固定されている。そしてこの昇降シリ
ンダ６を操作することにより上モールド取付部材５はサ
イドフレーム１ｃに設けられた垂直昇降用ガイド８に沿
って昇降自在となっている。上モールド取付部材５の上
面には上方に伸びる加圧伝達ロッド１２が設けられてお
り、上部フレーム１ａには中空加圧シリンダ９が固設さ
れている。そして中空加圧シリンダ９の中空部９ａに加
圧伝達ロッド１２の上部が挿通されている。In FIG. 1, a press frame 1 includes an upper frame 1a, a lower frame 1b, and a side frame 1c.
A lower mold 3 is fixed to the lower frame 1b via a lower mold attachment member 2. An upper mold 4 which can be freely opened and closed on the lower mold 3 is fixed to an upper mold mounting member 5, and a piston portion of an elevating cylinder 6 provided on the side of the upper frame 1a is attached to the upper mold mounting member 5. 7 ends are fixed. By operating this lifting cylinder 6, the upper mold mounting member 5 can be moved up and down along a vertical lifting guide 8 provided on the side frame 1c. A pressure transmission rod 12 extending upward is provided on the upper surface of the upper mold attachment member 5, and a hollow pressure cylinder 9 is fixed to the upper frame 1a. The upper part of the pressure transmission rod 12 is inserted into the hollow portion 9a of the hollow pressure cylinder 9.
【００１２】中空加圧シリンダ９のピストン部１０の端
部にはブラケット１５が固設されており、このブラケッ
ト１５内には図２に示すように内面に雌ネジ部１３ａ、
１４ａを有する二つ割りの割型状のナット片１３、１４
から構成される締付ナット１１が結合、分離が自在に収
納されている。一方、加圧伝達ロッド１２の上部にはこ
の締付ナット１１のナット片１３、１４の雌ネジ部１３
ａ、１４ａと噛み合う雄ネジ部１２ａが設けられている
。１６は締付ナット１１の開閉用シリンダであり、その
シリンダチューブ１６ａはプレート１７、ロッド１８を
介して一方のナット片１３に固着し、そのピストンロッ
ド１６ｂは他方のナット片１４に固着している。かくし
て開閉用シリンダ１６を伸長させれば、両ナット片１３
、１４が相接近する方向に同時に移動して締付ナット１
１が閉じ、開閉用シリンダ１６を縮小させれば、逆に両
ナット片１３、１４が相離間する方向に移動して締付ナ
ット１１が開くように構成されている。A bracket 15 is fixed to the end of the piston portion 10 of the hollow pressurizing cylinder 9, and the bracket 15 has a female threaded portion 13a on the inner surface as shown in FIG.
Two split-shaped nut pieces 13 and 14 having 14a
A tightening nut 11 consisting of the following is housed so that it can be freely connected and separated. On the other hand, the female screw portions 13 of the nut pieces 13 and 14 of the tightening nut 11 are attached to the upper part of the pressure transmission rod 12.
A male screw portion 12a is provided which engages with the screws 14a and 14a. 16 is a cylinder for opening and closing the tightening nut 11; its cylinder tube 16a is fixed to one nut piece 13 via a plate 17 and a rod 18, and its piston rod 16b is fixed to the other nut piece 14. . If the opening/closing cylinder 16 is extended in this way, both nut pieces 13
, 14 move simultaneously in the direction in which they approach each other to tighten the tightening nut 1.
1 is closed and the opening/closing cylinder 16 is contracted, the nut pieces 13 and 14 are moved in the direction of separating from each other, and the tightening nut 11 is opened.
【００１３】図１にもどり、上モールド取付部材５の側
部には上モールド取付部材５の位置を検出するためのエ
ンコーダ２０が設置されており、両モールド取付部材２
、５に金型を取り付けないで両モールド取付部材２、５
を閉合したときの上モールド取付部材５の位置を上モー
ルド取付部材５の位置基準としている。ブラケット１５
の側部には締付ナット１１の位置を検出するためのエン
コーダ２１が設置されており、両モールド取付部材２、
５に本タイヤ加硫プレスに取付可能な最少厚みの金型を
固定して両モールド取付部材２、５を閉合したときの上
モールド取付部材５の位置をＨ０ とすると、上モール
ド取付部材５がＨ０ の位置にあるときに、図３（図２
のＢ−Ｂ断面図）に示すように締付ナット１１のナット
片１３、１４の雌ネジ部１３ａ、１４ａと加圧伝達ロッ
ド１２の雄ネジ部１２ａとが適正隙間αとなる締付ナッ
ト１１の位置を締付ナット１１の位置基準としている。
そしてエンコーダ２０とエンコーダ２１により検出され
る上モールド取付部材５と締付ナット１１の位置データ
は、中空加圧シリンダ９に昇降指令を出す制御装置２２
に送られる。制御装置２２にはメモリが内蔵されており
、上述したＨ０ を記憶しておき、エンコーダ２０から
送られてくる上モールド取付部材５の位置Ｈのデータか
ら、（Ｈ−Ｈ０ ）−ｎＰの値を算出できるようになっ
ている。なお、Ｐはナット片１３、１４の雌ネジ部１３
ａ、１４ａと加圧伝達ロッド１２の雄ネジ部１２ａのピ
ッチであり、ｎは（Ｈ−Ｈ０ ）／Ｐの値の整数部分で
ある。Returning to FIG. 1, an encoder 20 for detecting the position of the upper mold mounting member 5 is installed on the side of the upper mold mounting member 5, and both mold mounting members 2
, 5 without attaching the mold to both mold mounting members 2 and 5.
The position of the upper mold attachment member 5 when the upper mold attachment member 5 is closed is used as the position reference of the upper mold attachment member 5. Bracket 15
An encoder 21 for detecting the position of the tightening nut 11 is installed on the side of both mold mounting members 2,
If the position of the upper mold mounting member 5 when the mold with the minimum thickness that can be attached to the tire curing press is fixed to 5 and both mold mounting members 2 and 5 are closed is H0, then the upper mold mounting member 5 is When in the H0 position, Fig. 3 (Fig. 2
As shown in BB sectional view), the tightening nut 11 has an appropriate clearance α between the female threaded portions 13a, 14a of the nut pieces 13, 14 of the tightening nut 11 and the male threaded portion 12a of the pressure transmission rod 12. The position of the tightening nut 11 is set as the position reference. The position data of the upper mold mounting member 5 and the tightening nut 11 detected by the encoder 20 and the encoder 21 is sent to a control device 22 which issues a lifting command to the hollow pressure cylinder 9.
sent to. The control device 22 has a built-in memory that stores the above-mentioned H0 and calculates the value of (H-H0)-nP from the data of the position H of the upper mold attachment member 5 sent from the encoder 20. It is now possible to calculate. In addition, P is the female screw part 13 of the nut pieces 13 and 14.
a is the pitch between 14a and the male threaded portion 12a of the pressure transmission rod 12, and n is the integer part of the value of (H-H0)/P.
【００１４】つぎに、上述した構造のタイヤ加硫プレス
の金型高さの調整作業を説明する。上述したように上モ
ールド取付部材５の位置がＨ０ であるとき、締付ナッ
ト１１は締付ナット１１のナット片１３、１４の雌ネジ
部１３ａ、１４ａと加圧伝達ロッド１２の雄ネジ部１２
ａとが適正隙間αとなる位置にある。締付ナット１１と
加圧伝達ロッド１２が係合していない状態で、両モール
ド取付部材２、５にこれから行う加硫作業に用いる下金
型３と上金型４を固定して両モールド取付部材２、５を
閉合する。このときの上モールド取付部材５の位置Ｈは
両金型３、４の厚みに応じてＨ０ に対してＨ−Ｈ０
上昇するが、この上昇分だけ加圧伝達ロッド１２も上昇
する。
加圧伝達ロッド１２には軸方向に亘って等ピッチで雄ネ
ジ部１２ａが設けられており、上昇した位置での加圧伝
達ロッド１２の雄ネジ部１２ａと締付ナット１１の雌ネ
ジ部１３ａ、１４ａは開閉自在に噛み合うことができる
。このとき、Ｈ−Ｈ０ がＰの整数倍であれば、雌ネジ
部１３ａ、１４ａと雄ネジ部１２ａは適正隙間αの状態
にあり、この適正隙間αの状態で開閉用シリンダ１６を
伸長させて締付ナット１１を閉じると、締付ナット１１
と加圧伝達ロッド１２は軸方向に一体状態となり、中空
加圧シリンダ９の加圧力を締付ナット１１を介して加圧
伝達ロッド１２に伝達することができる。また、Ｈ−Ｈ
０ がＰの整数倍でない場合には、Ｈ−Ｈ０ がＰの整
数倍となるように制御装置２２から中空加圧シリンダ９
に昇降指令を出して微調整を行うことにより、雌ネジ部
１３ａ、１４ａと雄ネジ部１２ａを適正隙間αの状態に
し、同様に締付ナット１１と加圧伝達ロッド１２を軸方
向に一体状態とすることができる。このように、金型を
変更した場合、加圧伝達ロッド１２は金型高さに応じて
昇降し、昇降した位置での加圧伝達ロッド１２の雄ネジ
部１２ａは、制御装置２２からの指令を受けてこの雄ネ
ジ部１２ａと適正隙間となるように昇降する締付ナット
１１の雌ネジ部１３ａ、１４ａと開閉自在に噛み合うた
め、各々の金型に対応した所望の金型高さに簡易、迅速
に調整することができる。従って、加硫作業の生産性が
向上し、さらに、加圧ストローク精度の向上により高品
質の加硫結果が得られる。Next, the adjustment work of the mold height of the tire vulcanizing press having the above-described structure will be explained. As described above, when the upper mold mounting member 5 is in the position H0, the tightening nut 11 is connected to the female threaded portions 13a, 14a of the nut pieces 13, 14 of the tightening nut 11 and the male threaded portion 12 of the pressure transmission rod 12.
a is located at a position where the appropriate gap α is established. With the tightening nut 11 and the pressure transmission rod 12 not engaged, lower mold 3 and upper mold 4, which will be used for the vulcanization work to be performed from now on, are fixed to both mold mounting members 2 and 5, and both molds are installed. Parts 2 and 5 are closed. At this time, the position H of the upper mold mounting member 5 is H-H0 relative to H0 depending on the thickness of both molds 3 and 4.
However, the pressure transmission rod 12 also rises by the amount of this rise. The pressure transmission rod 12 is provided with male threaded portions 12a at equal pitches in the axial direction, and the male threaded portion 12a of the pressure transmission rod 12 and the female threaded portion 13a of the tightening nut 11 in the elevated position. , 14a can be engaged with each other so as to be openable and closable. At this time, if H-H0 is an integral multiple of P, the female threaded portions 13a, 14a and the male threaded portion 12a are in a state of a proper clearance α, and the opening/closing cylinder 16 is extended with this proper clearance α. When the tightening nut 11 is closed, the tightening nut 11
The pressure transmission rod 12 and the pressure transmission rod 12 are integrated in the axial direction, and the pressure force of the hollow pressure cylinder 9 can be transmitted to the pressure transmission rod 12 via the tightening nut 11. Also, H-H
0 is not an integer multiple of P, the controller 22 sends the hollow pressurizing cylinder 9 so that H-H0 is an integer multiple of P.
By issuing a lift command and making fine adjustments, the female threaded portions 13a, 14a and the male threaded portion 12a are brought into a state with an appropriate clearance α, and the tightening nut 11 and the pressure transmission rod 12 are similarly integrated in the axial direction. It can be done. In this way, when the mold is changed, the pressure transmission rod 12 is raised and lowered according to the height of the mold, and the male threaded portion 12a of the pressure transmission rod 12 at the raised and lowered position is adjusted according to the command from the control device 22. The male threaded part 12a and the female threaded parts 13a and 14a of the tightening nut 11 move up and down to form an appropriate clearance. , can be adjusted quickly. Therefore, the productivity of the vulcanization work is improved, and further, high-quality vulcanization results can be obtained by improving the press stroke accuracy.
【００１５】さらに、図４により上述した構造のタイヤ
加硫プレスの金型高さの調整手順を説明する。両モール
ド取付部材２、５に下金型３と上金型４を固定し、両金
型３、４を閉合したところでフローがスタートする。ス
テップ♯１でこの状態の上モールド取付部材５の位置Ｈ
を上モールド取付部材５に設置したエンコーダ２０で検
出する。このデータは制御装置２２に送られ、ステップ
♯２で（Ｈ−Ｈ０ ）−ｎＰ＝ａを算出する。ステップ
♯３でこの差ａが０であるかどうかを判断する。ａ＝０
であると（ＹＥＳ）、雌ネジ部１３ａ、１４ａと雄ネジ
部１２ａは適正隙間αの状態であり、中空加圧シリンダ
９を昇降させる必要はなく、調整作業が終了する。ａ≠
０であると（ＮＯ）、ステップ♯４でａ≧（Ｐ／２）で
あるかどうかを判断する。ａ≧（Ｐ／２）であると（Ｙ
ＥＳ）、ステップ♯５で中空加圧シリンダ９をＰ−ａだ
け下降させる指令を出し、ａ＜（Ｐ／２）であると（Ｎ
Ｏ）、ステップ♯６で中空加圧シリンダ９をａだけ上昇
させる指令を出し、雌ネジ部１３ａ、１４ａと雄ネジ部
１２ａを適正隙間αの状態にして調整作業が終了する。Further, the procedure for adjusting the mold height of the tire vulcanizing press having the above-described structure will be explained with reference to FIG. The lower mold 3 and the upper mold 4 are fixed to both mold attachment members 2 and 5, and the flow starts when both molds 3 and 4 are closed. In step #1, the position H of the upper mold mounting member 5 in this state
is detected by an encoder 20 installed on the upper mold mounting member 5. This data is sent to the control device 22, and (H-H0)-nP=a is calculated in step #2. In step #3, it is determined whether this difference a is 0 or not. a=0
If so (YES), the female threaded portions 13a, 14a and the male threaded portion 12a are in a state where there is an appropriate clearance α, and there is no need to raise and lower the hollow pressurizing cylinder 9, and the adjustment work is completed. a≠
If it is 0 (NO), it is determined in step #4 whether a≧(P/2). If a≧(P/2), then (Y
ES), in step #5, a command is issued to lower the hollow pressure cylinder 9 by P-a, and if a<(P/2), (N
O), In step #6, a command is issued to raise the hollow pressurizing cylinder 9 by an amount a, and the adjustment work is completed by setting the female threaded portions 13a, 14a and the male threaded portion 12a to the proper clearance α.
【００１６】金型高さの調整作業が終了すると、締付ナ
ット１１と加圧伝達ロッド１２が係合していない状態で
昇降シリンダ６を縮小させ、上モールド取付部材５を介
して上金型４を上昇させる。そしてグリーンタイヤ２２
を下金型３へ装入セットし、昇降シリンダ６を伸長させ
て上モールド取付部材５を介して上金型４を下降させ、
両金型３、４の閉合を行う。金型閉合状態で開閉用シリ
ンダ１６を伸長させると、両ナット片１３、１４が相接
近する方向に同時に移動して締付ナット１１が閉じ、締
付ナット１１と加圧伝達ロッド１２が互いのネジ部１３
ａ、１４ａ、１２ａを介して係合し、軸方向に一体状態
となる。締付ナット１１と加圧伝達ロッド１２が一体と
なった状態で中空加圧シリンダ９のピストン部１０を加
圧下降させると、締付ナット１１を介し加圧伝達ロッド
１２に加圧力が伝達されて型締め加圧が行われる。この
ときの加圧ストロークＬはブラケット１５の側部に設置
されたエンコーダ２１により検出され、そのデータは制
御装置２２に送られてメモリに記憶される。型締め加圧
が終了すると、開閉用シリンダ１６を縮小させる。する
と、両ナット片１３、１４は相離間する方向に移動して
締付ナット１１は開き、締付ナット１１と加圧伝達ロッ
ド１２の係合が開放される。そして昇降シリンダ６を縮
小させて上モールド取付部材５を介して上金型４を上昇
させ、制御装置２２から中空加圧シリンダ９のピストン
部１０に加圧ストロークＬ分だけの上昇指令を出す。そ
して加硫済タイヤをタイヤ加硫プレス外に排出すること
により加硫作業が終了し、新しいグリーンタイヤを下金
型３へ装入セットして次の加硫作業が開始される。When the mold height adjustment work is completed, the lifting cylinder 6 is contracted while the tightening nut 11 and the pressure transmission rod 12 are not engaged, and the upper mold is removed via the upper mold mounting member 5. Raise 4. And green tire 22
is charged and set into the lower mold 3, and the lifting cylinder 6 is extended to lower the upper mold 4 via the upper mold mounting member 5.
Both molds 3 and 4 are closed. When the opening/closing cylinder 16 is extended with the mold closed, both nut pieces 13 and 14 move toward each other at the same time, the tightening nut 11 closes, and the tightening nut 11 and the pressure transmission rod 12 move toward each other. Screw part 13
a, 14a, and 12a to form an integral state in the axial direction. When the piston portion 10 of the hollow pressure cylinder 9 is pressurized and lowered with the tightening nut 11 and the pressure transmission rod 12 integrated, the pressure force is transmitted to the pressure transmission rod 12 via the tightening nut 11. The mold is clamped and pressurized. The pressurizing stroke L at this time is detected by an encoder 21 installed on the side of the bracket 15, and the data is sent to the control device 22 and stored in the memory. When the mold clamping pressurization is completed, the opening/closing cylinder 16 is contracted. Then, both the nut pieces 13 and 14 move in the direction of separating from each other, the tightening nut 11 is opened, and the engagement between the tightening nut 11 and the pressure transmission rod 12 is released. Then, the elevating cylinder 6 is contracted to raise the upper mold 4 via the upper mold mounting member 5, and a command to raise the piston portion 10 of the hollow pressurizing cylinder 9 by the amount of the pressurizing stroke L is issued from the control device 22. Then, the vulcanizing operation is completed by discharging the vulcanized tire out of the tire vulcanizing press, and a new green tire is charged and set in the lower mold 3, and the next vulcanizing operation is started.
【００１７】なお、上記実施例ではプレスフレーム上に
１基の加硫型を設置したタイプのタイヤ加硫プレスにつ
いて説明したが、プレスフレーム上に複数の加硫型を設
置したタイプのものにも同様に適用でき、上記実施例と
同様の効果を奏する。[0017] In the above embodiment, a tire curing press with one curing mold installed on the press frame was explained, but a tire curing press with a plurality of curing molds installed on the press frame can also be used. It can be applied in the same way and produces the same effects as the above embodiment.
【００１８】さらに、締付ナットは二つ割りに限らず、
それ以上の割片にて構成してもよい。Furthermore, the tightening nut is not limited to being split into two.
It may be composed of more pieces.
【００１９】[0019]
【発明の効果】金型高さの変更に伴い、軸方向にネジ部
を設けた加圧伝達ロッドは昇降し、昇降した位置での加
圧伝達ロッドのネジ部は、制御装置からの指令を受けて
この加圧伝達ロッドのネジ部と適正隙間となるように昇
降する締付ナットのネジ部と開閉自在に噛み合うため、
金型変更に対応して所望の金型高さを簡易、迅速に調整
することができる。従って、加硫作業の生産性が向上し
、さらに、加圧ストローク精度の向上により高品質の加
硫結果が得られる。[Effect of the invention] As the height of the mold changes, the pressure transmission rod with a threaded section in the axial direction moves up and down, and the threaded section of the pressure transmission rod at the raised and lowered position responds to commands from the control device. In order to be able to freely open and close the threaded part of the tightening nut that moves up and down so as to create an appropriate clearance with the threaded part of this pressure transmission rod,
The desired mold height can be easily and quickly adjusted in response to mold changes. Therefore, the productivity of the vulcanization work is improved, and further, high-quality vulcanization results can be obtained by improving the press stroke accuracy.
【図１】本発明のタイヤ加硫プレスの一部断面図である
。FIG. 1 is a partial sectional view of a tire curing press of the present invention.
【図２】図１のＡ−Ａ断面図である。FIG. 2 is a sectional view taken along the line AA in FIG. 1;
【図３】図２のＢ−Ｂ断面図である。FIG. 3 is a sectional view taken along line BB in FIG. 2;
【図４】本発明のタイヤ加硫プレスの金型高さの調整手
順を示すフロー図である。FIG. 4 is a flow diagram showing a procedure for adjusting the mold height of the tire curing press of the present invention.
【図５】従来のタイヤ加硫プレスの一部断面図である。FIG. 5 is a partial cross-sectional view of a conventional tire curing press.
【図６】図５のＣ−Ｃ断面図である。FIG. 6 is a sectional view taken along line CC in FIG. 5;
【図７】従来の他のタイヤ加硫プレスの一部断面図であ
る。FIG. 7 is a partial cross-sectional view of another conventional tire curing press.
１ プレスフレーム
３ 下金型
４ 上金型
５ 上モールド取付部材
９ 中空加圧シリンダ
１１ 締付ナット
１２ 加圧伝達ロッド
１２ａ 加圧伝達ロッドネジ部
２０、２１ エンコーダ（位置検出装置）２２ 制
御装置1 Press frame 3 Lower mold 4 Upper mold 5 Upper mold mounting member 9 Hollow pressure cylinder 11 Tightening nut 12 Pressure transmission rod 12a Pressure transmission rod threaded portion 20, 21 Encoder (position detection device) 22 Control device
Claims (1)
ドフレームからなるプレスフレームと、下部フレームに
下モールド取付部材を介して固定された下金型と、サイ
ドフレームに沿って昇降自在な上モールド取付部材に固
定された上金型と、上部フレームに固設された中空加圧
シリンダと、上モールド取付部材から上方に伸び中空加
圧シリンダの中空部に挿通される加圧伝達ロッドとを備
えたタイヤ加硫プレスにおいて、前記加圧伝達ロッドに
ネジ部を設け、前記中空加圧シリンダのピストン部に該
ネジ部と噛み合うネジ部を有する開閉自在な締付ナット
を設け、該締付ナットのネジ部と前記加圧伝達ロッドの
ネジ部間の隙間量を測定する位置検出装置を設け、この
隙間量を適正値にすべく中空加圧シリンダに昇降指令を
出す制御装置を設けたことを特徴とするタイヤ加硫プレ
ス。Claim 1: A press frame consisting of an upper frame, a lower frame, and a side frame, a lower mold fixed to the lower frame via a lower mold attachment member, and an upper mold attachment member that is movable up and down along the side frame. A tire pressurizer comprising a fixed upper mold, a hollow pressurizing cylinder fixed to the upper frame, and a pressurizing transmission rod extending upward from the upper mold mounting member and inserted into the hollow part of the hollow pressurizing cylinder. In the sulfur press, the pressure transmission rod is provided with a threaded portion, the piston portion of the hollow pressure cylinder is provided with a tightening nut that can be opened and closed and has a threaded portion that engages with the threaded portion, and the threaded portion of the tightening nut and A tire characterized in that it is provided with a position detection device that measures the amount of clearance between the threaded portions of the pressure transmission rod, and is provided with a control device that issues a lifting command to the hollow pressure cylinder in order to adjust the amount of clearance to an appropriate value. Vulcanizing press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17432691A JPH04369513A (en) | 1991-06-18 | 1991-06-18 | Tire vulcanizing press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17432691A JPH04369513A (en) | 1991-06-18 | 1991-06-18 | Tire vulcanizing press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04369513A true JPH04369513A (en) | 1992-12-22 |
Family
ID=15976687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17432691A Pending JPH04369513A (en) | 1991-06-18 | 1991-06-18 | Tire vulcanizing press |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04369513A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2767087A1 (en) * | 1997-08-08 | 1999-02-12 | Skoda Ts Sro | Height adjustment of mould support plate in hot press e..g in manufacture of tyres hydraulic cylinders outside steam chamber to reduce wear |
| US11865756B2 (en) | 2019-12-09 | 2024-01-09 | Sodick Co., Ltd. | Mold clamping device of injection molding machine and method of adjusting mold thickness of mold clamping device |
-
1991
- 1991-06-18 JP JP17432691A patent/JPH04369513A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2767087A1 (en) * | 1997-08-08 | 1999-02-12 | Skoda Ts Sro | Height adjustment of mould support plate in hot press e..g in manufacture of tyres hydraulic cylinders outside steam chamber to reduce wear |
| US11865756B2 (en) | 2019-12-09 | 2024-01-09 | Sodick Co., Ltd. | Mold clamping device of injection molding machine and method of adjusting mold thickness of mold clamping device |
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