JPH0655227A - Manufacturing device for metallic bellows tube - Google Patents
Manufacturing device for metallic bellows tubeInfo
- Publication number
- JPH0655227A JPH0655227A JP4211283A JP21128392A JPH0655227A JP H0655227 A JPH0655227 A JP H0655227A JP 4211283 A JP4211283 A JP 4211283A JP 21128392 A JP21128392 A JP 21128392A JP H0655227 A JPH0655227 A JP H0655227A
- Authority
- JP
- Japan
- Prior art keywords
- annular seal
- fixed
- moving
- hydraulic cylinder
- molding
- 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
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、金属管の一部または全
部に蛇腹状部分を形成した伸縮可能なベローズや屈曲自
在な可撓管（以下、金属製蛇腹管という）の製造装置に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a bellows which is expandable and contractible and a flexible tube (hereinafter referred to as a metal bellows tube) in which a bellows-like portion is formed on a part or all of a metal tube. Is.
【０００２】[0002]
【従来の技術】一般に金属製蛇腹管は、素管の外側に配
設された開閉用油圧シリンダ付きの固定側割型と移動側
割型と、素管内側に配設され成形用加圧空間の両端を区
画する二つの環状シールと、上記成形用加圧空間に圧力
流体を送って該素管部分を膨出させる成形用圧力流体手
段、および上記膨出部側面を移動側割型で固定側割型に
向かって押圧する蛇腹形成用押圧手段を備えている。圧
力流体は例えば１８０Kg／cm2 と高圧であって、この水
圧に環状シール箇所が耐えきれないと、該環状シール箇
所から激しく漏水して満足な成形ができないことから、
環状シール箇所の耐圧としては２８０Kg／cm2 程度が要
求されることになる。このような高い耐圧性を保証する
ことは技術的にも仲々困難であるのに加えて、通常使用
される素管は真円度も余り良くない溶接管であり、その
内面は溶着で凹凸になっているから、素管移動の際にシ
ールが素管内面で擦られるとシールを激しく痛め、耐圧
性の確保を益々困難なものにする。2. Description of the Related Art Generally, a metal bellows tube is composed of a fixed split mold and a movable split mold with a hydraulic cylinder for opening and closing, which is arranged on the outer side of a blank pipe, and a pressurizing space for molding which is arranged on the inner side of the blank pipe. , Two annular seals for partitioning the both ends, a molding pressure fluid means for sending a pressure fluid to the molding pressure space to swell the raw pipe portion, and the side surface of the swelling portion fixed by a moving side split mold. It is provided with a bellows forming pressing means for pressing toward the side split mold. The pressure fluid has a high pressure of, for example, 180 kg / cm 2, and if the annular seal portion cannot withstand this water pressure, water will violently leak from the annular seal portion and satisfactory molding cannot be performed.
A pressure resistance of about 280 kg / cm 2 is required at the annular seal portion. It is technically difficult to ensure such a high pressure resistance, and in addition to this, the normally used raw pipe is a welded pipe with poor roundness, and its inner surface is uneven due to welding. Therefore, if the seal is rubbed against the inner surface of the base pipe during movement of the base pipe, the seal will be severely damaged, making it more difficult to secure pressure resistance.
【０００３】かかる環状シール構造として、本出願人の
発明になる特開平３−１９３２２４号公報には、いずれ
も断面逆Ｕ字形をなす両環状シールのシール用圧力流体
流路を夫々別個独立させ、これによって素管移動の際、
挟持側に当る環状シールは膨脹させても、通過側に当る
環状シールは未膨脹状態に保持して、素管内面の擦れに
起因した損傷を可及的小とさせる構成が開示されてい
る。As such an annular seal structure, Japanese Unexamined Patent Publication No. 3-193224, which is the invention of the present applicant, makes the pressure fluid flow paths for sealing of both annular seals each having an inverted U-shaped cross-section independent from each other, By this, when moving the tube,
A configuration is disclosed in which, even if the annular seal that contacts the holding side is expanded, the annular seal that contacts the passing side is kept in an unexpanded state, and damage caused by the rubbing of the inner surface of the base pipe is minimized.
【０００４】[0004]
【発明が解決しようとする課題】上記した断面逆Ｕ字形
をなす環状シールは比較的高価につくうえ、圧力流体を
加えて素管内面に密着させた環状シールを、つぎに素管
内面から遊離させようと圧力流体を取り除いた際の変化
量が少なく、そのためシールの損傷を生じがちであり、
即応性も今一つ物足りない嫌いがある点で、未だ改善の
余地があった。そこで本発明は上記した課題を解決する
金属製蛇腹管の製造装置を提供することをその目的とし
ている。The above-mentioned annular seal having an inverted U-shaped cross section is relatively expensive, and the annular seal adhered to the inner surface of the base pipe by applying a pressure fluid is then released from the inner surface of the base pipe. The amount of change when removing the pressure fluid in order to do so is small, which tends to damage the seal,
There is still room for improvement in that there is another dislike of responsiveness. Therefore, an object of the present invention is to provide an apparatus for manufacturing a metal bellows tube that solves the above problems.
【０００５】[0005]
【課題を解決するための手段】本発明は、素管の外側に
配設された開閉用油圧シリンダ付きの固定側割型と移動
側割型と、素管内側に配設され成形用加圧空間の両端を
区画する固定側環状シールと移動側環状シール、上記成
形用加圧空間に圧力流体を送って該素管部分を膨出させ
る成形用圧力流体手段、および上記膨出部側面を移動側
割型で固定側割型に向かって押圧する蛇腹形成用押圧手
段を備えた金属製蛇腹管の製造装置において、上記固定
側環状シールと移動側環状シールの嵌合溝を形成する三
面のうちの一面を夫々油圧シリンダによって移動自在と
した部材により構成したことを特徴とする。SUMMARY OF THE INVENTION The present invention is directed to a fixed split mold and a movable split mold with an opening / closing hydraulic cylinder arranged outside the raw pipe, and a molding pressurizing press provided inside the raw pipe. A fixed-side annular seal and a moving-side annular seal that define both ends of the space, a molding pressure fluid means for sending a pressure fluid to the molding pressurizing space to swell the raw pipe portion, and a side surface of the swelling portion. In a metal bellows tube manufacturing apparatus provided with a bellows forming pressing means that presses a fixed side split mold with a side split mold, among three surfaces forming a fitting groove of the fixed side annular seal and the moving side annular seal. It is characterized in that one surface thereof is constituted by a member which is movable by a hydraulic cylinder.
【０００６】[0006]
【作 用】固定側、移動側いずれの環状シールも、高度
の耐圧性を得たい場合は油圧シリンダによって移動自在
とした部材でもって該環状シールを押圧し、これを圧縮
変形させることで素管内面に強く密着させる。反対に素
管内面から環状シールを離したい場合には、上記油圧シ
リンダで該部材を逃がして押圧を解放する。そうすると
環状シールは自己の弾性によって元の形状に戻って、素
管内面から僅かに離れることになる。[Operation] If you want to obtain a high degree of pressure resistance, both the fixed side and moving side annular seals can be compressed and deformed by pressing the annular seals with a member that can be moved by a hydraulic cylinder. Make a strong contact with the surface. On the contrary, when it is desired to separate the annular seal from the inner surface of the raw pipe, the member is released by the hydraulic cylinder to release the pressure. Then, the annular seal returns to its original shape due to its elasticity, and is slightly separated from the inner surface of the shell.
【０００７】[0007]
【実施例】一般に、金属製蛇腹缶の製造装置には、成形
後に素管を機内に引き込むタイプと、機外に送り出すタ
イプとがある。本発明になる実施例として、図１に、前
者のタイプの例を示し、これについて説明することとす
る。EXAMPLES In general, there are two types of apparatus for manufacturing a metal bellows can: a type in which a raw pipe is drawn into the machine after molding and a type in which it is sent out of the machine. As an embodiment of the present invention, FIG. 1 shows an example of the former type, which will be described.
【０００８】図１において、１は素管、２は右側の固定
フレーム２ａと左側の固定フレーム２ｂとからなる固定
フレーム、３は右側の移動フレーム３ａと左側の移動フ
レーム３ｂとがタイロッド３ｃによって一体化された移
動フレーム枠である。右側の固定フレーム２ａには開閉
用油圧シリンダ５ａ，５ｂ付きの固定側割型６ａ，６ｂ
が、右側の移動フレーム３ａには開閉用油圧シリンダ７
ａ，７ｂ付きの移動側割型８ａ，８ｂが装着されてい
る。固定側割型６ａ，６ｂと移動側割型８ａ，８ｂは、
いずれも素管１の外側に配設される。一端を機台側に固
定した成形用油圧シリンダ４は、移動フレーム３枠を左
右方向に移動させるもので、後述する動作によって膨出
させた素管１部分の側面を移動側割型８ａ，８ｂで固定
側割型６ａ，６ｂに向かって押すことができる。In FIG. 1, 1 is a tube, 2 is a fixed frame consisting of a right fixed frame 2a and left fixed frame 2b, and 3 is a right moving frame 3a and a left moving frame 3b, which are integrated by a tie rod 3c. It is a converted moving frame. Fixed side split molds 6a, 6b with hydraulic cylinders 5a, 5b for opening and closing are provided on the right fixed frame 2a.
However, the opening / closing hydraulic cylinder 7 is attached to the right moving frame 3a.
Moving side split molds 8a and 8b with a and 7b are attached. The fixed split molds 6a and 6b and the movable split molds 8a and 8b are
Both are arranged outside the raw tube 1. The molding hydraulic cylinder 4 having one end fixed to the machine base moves the frame of the moving frame 3 in the left-right direction. The side surface of the portion of the raw pipe 1 bulged by the operation described later is divided into moving-side split dies 8a, 8b. Can be pushed toward the fixed side split molds 6a, 6b.
【０００９】左側の固定フレーム２ｂには細長い筒状中
子ボス９と、その筒状中子ボス９の外周面に摺動自在に
嵌合したプッシャー１０を長手方向に移動可能とするプ
ッシャー用油圧シリンダ１１が装着され、左側の移動フ
レーム３ｂには、上記筒状中子ボス９の内側に摺動自在
に嵌挿した筒状中子ホルダー１２と、その筒状中子ホル
ダー１２の内側に摺動自在に嵌挿したプルバー１３を長
手方向に移動可能とするプルバー用油圧シリンダ１４が
装着されている。On the fixed frame 2b on the left side, an elongated cylindrical core boss 9 and a pusher oil pressure that allows the pusher 10 slidably fitted on the outer peripheral surface of the cylindrical core boss 9 to move in the longitudinal direction. The cylinder 11 is mounted, and the left moving frame 3b is slidably fitted into the cylindrical core boss 9 and slidably inserted into the cylindrical core holder 12. A pull bar hydraulic cylinder 14 is attached which allows the movably fitted pull bar 13 to move in the longitudinal direction.
【００１０】素管１内側に配設され成形用加圧空間１５
の両端を区画する固定側環状シール１６と移動側環状シ
ール１７は夫々筒状中子ボス９と筒状中子ホルダー１２
の先端箇所に装着される。環状シール１６，１７として
好適な材質としてはウレタンゴムがある。A molding pressurizing space 15 disposed inside the raw tube 1.
The fixed side annular seal 16 and the moving side annular seal 17 for partitioning the both ends of the cylindrical core boss 9 and the cylindrical core holder 12 respectively.
Is attached to the tip of the. Urethane rubber is a suitable material for the annular seals 16 and 17.
【００１１】図１の固定側環状シール１６回りと移動側
環状シール１７回りを拡大して図２に示した。図２から
明らかなように、筒状中子ボス９先端にロックナット１
８を螺着して形成したＬ形頭部箇所に固定側環状シール
１６を装着することで固定側環状シール１６の二方は規
制され、残りの一方は、プッシャー用油圧シリンダ１１
の働きで固定側環状シール１６を押圧するプッシャー１
０の端面としている。符号Ｌは筒状中子ボス９とプッシ
ャー１０の間に形成された遊びを示す。また、移動側環
状シール１７の場合は、筒状中子ホルダー１２先端に嵌
挿し且つロックナット２０によって固定した移動中子１
９箇所に移動側環状シール１７を装着することで移動側
環状シール１７の二方は規制され、残りの一方は、プル
バー用油圧シリンダ１４によって移動可能としたプルバ
ー１３先端にキャップ状部材２１を止着し、そのキャッ
プ状部材２１の端面によって規制される。つまり、固定
側、移動側いずれの環状シール１６，１７の装着箇所
も、それを構成する３面のうち２面は固定面であり、１
側は可動押圧面としている。従って、素管１内面に環状
シール１６，１７を強く密着させて高度の耐圧性を得た
い場合には、油圧シリンダ１１あるいは油圧シリンダ１
４によりプッシャー１０端面あるいはキャップ状部材２
１端面である可動押圧面側を押圧して環状シール１６，
１７を圧縮変形させることで達成され、反対に、素管１
内面から環状シール１６，１７を遊離させたい場合に
は、上記油圧シリンダ１１，１４により可動押圧面を逃
がし、環状シール１６，１７の弾性により元の状態に戻
すことで達成されることになる。The surroundings of the fixed side annular seal 16 and the moving side annular seal 17 of FIG. 1 are enlarged and shown in FIG. As is clear from FIG. 2, the lock nut 1 is attached to the tip of the tubular core boss 9.
By mounting the fixed-side annular seal 16 on the L-shaped head portion formed by screwing 8 together, two sides of the fixed-side annular seal 16 are regulated, and the other one is fixed to the pusher hydraulic cylinder 11
Pusher 1 that presses the fixed side annular seal 16 by the action of
The end face is 0. Reference symbol L indicates a play formed between the cylindrical core boss 9 and the pusher 10. Further, in the case of the moving side annular seal 17, the moving core 1 fitted into the tip of the cylindrical core holder 12 and fixed by the lock nut 20.
By mounting the moving side annular seal 17 at nine positions, two sides of the moving side annular seal 17 are regulated, and the other one of the moving side annular seals 17 stops the cap-shaped member 21 at the tip of the pull bar 13 made movable by the pull bar hydraulic cylinder 14. And is regulated by the end surface of the cap-shaped member 21. In other words, in both the fixed side and the moving side of the annular seals 16 and 17, two of the three surfaces constituting the annular seal are fixed surfaces.
The side is a movable pressing surface. Therefore, when the annular seals 16 and 17 are strongly adhered to the inner surface of the raw pipe 1 to obtain a high degree of pressure resistance, the hydraulic cylinder 11 or the hydraulic cylinder 1 is used.
4, the end face of the pusher 10 or the cap-shaped member 2
By pressing the movable pressing surface side which is the one end surface, the annular seal 16,
This is achieved by compressing and deforming 17 and conversely,
When it is desired to release the annular seals 16 and 17 from the inner surface, the movable pressing surfaces are escaped by the hydraulic cylinders 11 and 14 and returned to the original state by the elasticity of the annular seals 16 and 17.
【００１２】プルバー１３および筒状中子ホルダー１２
にそれぞれ穿設した圧力流体導入孔２２，２３を上記成
形用加圧空間１５に連通させ、これによって上記成形用
加圧空間１５への圧力流体送り込みを可能としている。
尚、図中、２４は回止めを兼ねる案内を示している。Pull bar 13 and cylindrical core holder 12
The pressure fluid introduction holes 22 and 23 respectively bored in the above are communicated with the molding pressurizing space 15, whereby the pressure fluid can be fed into the molding pressurizing space 15.
In the figure, reference numeral 24 indicates a guide which also serves as a rotation stop.
【００１３】つぎに、上記した装置の成形動作を説明す
る。図１の状態は、素管１をセット後に、開閉用油圧シ
リンダ５ａ，５ｂ付きの固定側割型６ａ，６ｂで素管１
外周面を押えてから、プッシャ用油圧シリンダ１１でプ
ッシャ１０を右側に押し出して固定側環状シール１６を
圧縮し、十分な耐圧性を呈するシール状態となし、つい
で成形用油圧シリンダ４を引き込んで移動型フレーム３
を蛇腹部分の展開長だけ右側に移動したのち、開閉用油
圧シリンダ７ａ，７ｂ付きの移動側割型８ａ，８ｂで素
管１外周面を押えてから、プルバー用油圧シリンダ１４
を出してプルバー１３のキャップ状部材２１端面で移動
側環状シール１７を圧縮し、十分な耐圧性を呈するシー
ル状態としている。この図１の状態で圧力流体導入孔２
２，２３を経て圧力流体を成形用加圧空間１５に送り込
むと、その成形用水圧で素管１は膨出し、この膨出部側
面を移動側割型８ａ，８ｂで固定側割型６ａ，６ｂに向
かって押圧前進させるべく、成形用油圧シリンダ４を作
動して移動フレーム枠３を左側に移動させることで一山
分の形成が完成する。Next, the molding operation of the above apparatus will be described. In the state of FIG. 1, after setting the base pipe 1, the fixed side split molds 6a and 6b with the opening and closing hydraulic cylinders 5a and 5b are used.
After pressing the outer peripheral surface, the pusher hydraulic cylinder 11 pushes out the pusher 10 to the right side to compress the fixed side annular seal 16 so that a sufficient pressure resistance is obtained, and then the forming hydraulic cylinder 4 is retracted and moved. Mold frame 3
Is moved to the right by the expanded length of the bellows part, and then the outer peripheral surface of the raw pipe 1 is pressed by the moving side split dies 8a, 8b with the opening / closing hydraulic cylinders 7a, 7b, and then the pull bar hydraulic cylinder 14
Then, the movable side annular seal 17 is compressed by the end surface of the cap-shaped member 21 of the pull bar 13 to bring it into a sealed state exhibiting sufficient pressure resistance. In this state of FIG. 1, the pressure fluid introduction hole 2
When the pressure fluid is fed into the molding pressurizing space 15 via 2, 23, the molding water pressure causes the base pipe 1 to swell, and the side surface of the bulging portion is moved side split dies 8a, 8b to the fixed side split dies 6a, The formation of one mountain is completed by operating the forming hydraulic cylinder 4 to move the moving frame 3 to the left side so as to push forward toward 6b.
【００１４】一山分の形成完成後は成形用水圧を抜き、
移動側環状シール１７のシール状態を解放し、移動側割
型８ａ，８ｂを開き、開いた移動側割型８ａ，８ｂを必
要展開長とピッチを加えた長さだけ成形用油圧シリンダ
４の働きで後退させてから、再度、移動側割型８ａ，８
ｂを閉じ、移動側環状シール１７を前記したところと同
様な手順でシール状態にさせる。一方、固定側環状シー
ル１６のシール状態を解放し、固定側割型６ａ，６ｂを
開き、それから成形用油圧シリンダ４の働きで移動側割
型８ａ，８ｂをピッチ分だけ左方向に前進させること
で、素管１を同ピッチ分だけ左方向に前進させる。それ
から固定側割型６ａ，６ｂを閉じ、固定側環状シール１
６を前記したところと同様な手順でシール状態にさせ、
圧力流体を成形用加圧空間１５に送り込んで、次の一山
分の形成を行う。以降、上記した動作を所望する山数だ
け繰り返す。After completing the formation of one mountain, release the molding water pressure,
The movable side annular seal 17 is released, the movable side split dies 8a and 8b are opened, and the opened movable side split dies 8a and 8b are operated by the molding hydraulic cylinder 4 for a length including a required development length and a pitch. After moving backward with, move side split molds 8a, 8 again.
b is closed and the moving side annular seal 17 is brought into a sealed state by the same procedure as described above. On the other hand, the fixed side annular seal 16 is released, the fixed side split dies 6a and 6b are opened, and then the movable hydraulic split dies 8a and 8b are moved to the left by the pitch by the action of the molding hydraulic cylinder 4. Then, the tube 1 is advanced to the left by the same pitch. Then, the fixed side split molds 6a, 6b are closed, and the fixed side annular seal 1
6 is made into a sealed state by the same procedure as described above,
The pressure fluid is fed into the molding pressurizing space 15 to form the next one mountain. After that, the above-described operation is repeated for the desired number of peaks.
【００１５】以上の実施例は、成形後、素管１を機内に
引き込むタイプについて述べたが、機外に送り出すタイ
プにも適用できる。この場合は、図１の右側の固定フレ
ーム２ａと左側の固定フレーム２ｂとをタイロッドで結
んで移動フレーム枠となしたものに成形用油圧シリンダ
４を取付け、反対に図１の右側の移動フレーム３ａと左
側の移動フレーム３ｂとは固定側となし、更に固定側割
型６ａ，６ｂと移動側割型８ａ，８ｂとの取付けを逆に
するが、その他は図１のとおりでよい。In the above-mentioned embodiment, the type in which the raw pipe 1 is drawn into the machine after molding is described, but it can be applied to the type to send it out of the machine. In this case, the molding hydraulic cylinder 4 is attached to the movable frame frame formed by connecting the fixed frame 2a on the right side and the fixed frame 2b on the left side in FIG. 1 with a tie rod, and conversely, the movable frame 3a on the right side in FIG. The left side moving frame 3b is not the fixed side, and the fixed side split dies 6a, 6b and the moving side split dies 8a, 8b are mounted in the opposite manner, but the rest may be as shown in FIG.
【００１６】[0016]
【発明の効果】本発明は、油圧シリンダにより移動自在
とした部材により環状シールを押圧し、その押圧を解放
するという機械的構成を採用したことによって、シール
状態にしたり非シール状態にしたりする即応性に優れ、
これによりタクトタイムを著しく短縮できる点で甚だ優
れている。また、環状シールの原形状と圧縮変形時の形
状との差を大にできるので、素管内面から環状シールを
完全に遊離させることができ、シールの損傷を少なくす
るばかりか、シールの耐久性を著しく向上させるといっ
た効果を奏することができる。The present invention employs a mechanical structure in which the annular seal is pressed by a member that is movable by a hydraulic cylinder and the pressing is released. Excellent in
This is extremely excellent in that the tact time can be significantly shortened. Also, since the difference between the original shape of the annular seal and the shape after compression deformation can be made large, the annular seal can be completely disengaged from the inner surface of the raw pipe, which not only reduces the damage of the seal but also improves the durability of the seal. It is possible to achieve the effect of significantly improving
【図１】本発明になる金属製蛇腹缶の製造装置の要部を
示す断面図である。FIG. 1 is a cross-sectional view showing a main part of an apparatus for manufacturing a metal bellows can according to the present invention.
【図２】図１の固定側環状シール回りと移動側環状シー
ル回りの拡大断面図である。FIG. 2 is an enlarged cross-sectional view around the fixed side annular seal and around the movable side annular seal of FIG.
１ 素管 ２ 固定フレーム ３ 移動フレーム枠 ４ 成形用油圧シリンダ ５ａ，５ｂ 開閉用油圧シリンダ ６ａ，６ｂ 固定側割型 ７ａ，７ｂ 開閉用油圧シリンダ ８ａ，８ｂ 移動側割型 ９ 筒状中子ボス １０ プッシャー １１ プッシャー用油圧シリンダ １２ 筒状中子ホルダー １３ プルバー １４ プルバー用油圧シリンダ １５ 成形用加圧空間 １６ 固定側環状シール １７ 移動側環状シール １８，２０ ロックナット １９ 移動中子 ２１ キャップ状部材 ２２，２３ 圧力流体導入孔 DESCRIPTION OF SYMBOLS 1 Elementary pipe 2 Fixed frame 3 Moving frame 4 4 Hydraulic cylinders for molding 5a, 5b Hydraulic cylinders for opening / closing 6a, 6b Fixed side split molds 7a, 7b Opening / closing hydraulic cylinders 8a, 8b Moving side split molds 9 Cylindrical core boss 10 Pusher 11 Hydraulic cylinder for pusher 12 Cylindrical core holder 13 Pull bar 14 Hydraulic cylinder for pull bar 15 Pressurizing space for molding 16 Fixed side annular seal 17 Moving side annular seal 18, 20 Lock nut 19 Moving core 21 Cap-shaped member 22, 23 Pressure fluid introduction hole
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成４年９月１７日[Submission date] September 17, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】発明の名称[Name of item to be amended] Title of invention
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【発明の名称】 金属製蛇腹管の製造装置Title of the Invention Manufacturing apparatus for metal bellows tube
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Name of item to be amended] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【特許請求の範囲】[Claims]
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００７[Correction target item name] 0007
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００７】[0007]
【実施例】一般に、金属製蛇腹管の製造装置には、成形
後に素管を機内に引き込むタイプを、機外に送り出すタ
イプとがある。本発明になる実施例として、図１に、前
者のタイプの例を示し、これについて説明することとす
る。EXAMPLES Generally, there are two types of manufacturing apparatus for metal bellows tubes , one is a type in which a blank tube is drawn into the machine after molding and the other is a type in which it is sent out of the machine. As an embodiment of the present invention, FIG. 1 shows an example of the former type, which will be described.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図面の簡単な説明[Name of item to be corrected] Brief description of the drawing
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明になる金属製蛇腹管の製造装置の要部を
示す断面図である。FIG. 1 is a sectional view showing a main part of a metal bellows tube manufacturing apparatus according to the present invention.
【図２】図１の固定側環状シール回りと移動側環状シー
ル回りの拡大断面図である。FIG. 2 is an enlarged cross-sectional view around the fixed side annular seal and around the movable side annular seal of FIG.
【符号の説明】 １ 素管 ２ 固定フレーム ３ 移動フレーム枠 ４ 成形用油圧シリンダ ５ａ，５ｂ 開閉用油圧シリンダ ６ａ，６ｂ 固定側割型 ７ａ，７ｂ 開閉用油圧シリンダ ８ａ，８ｂ 移動側割型 ９ 筒状中子ボス １０ プッシャー １１ プッシャー用油圧シリンダ １２ 筒状中子ホルダー １３ プルバー １４ プルバー用油圧シリンダ １５ 成形用加圧空間 １６ 固定側環状シール １７ 移動側環状シール １８，２０ ロックナット １９ 移動中子 ２１ キャップ状部材 ２２，２３ 圧力流体導入孔[Explanation of Codes] 1 Element pipe 2 Fixed frame 3 Moving frame frame 4 Molding hydraulic cylinder 5a, 5b Opening / closing hydraulic cylinder 6a, 6b Fixed side split mold 7a, 7b Opening / closing hydraulic cylinder 8a, 8b Moving side split mold 9 Tube Core boss 10 Pusher 11 Hydraulic cylinder for pusher 12 Cylindrical core holder 13 Pull bar 14 Hydraulic cylinder for pull bar 15 Molding pressure space 16 Fixed side annular seal 17 Moving side annular seal 18, 20 Lock nut 19 Moving core 21 Cap-shaped members 22, 23 Pressure fluid introduction hole
Claims (1)
ンダ付きの固定側割型と移動側割型と、素管内側に配設
され成形用加圧空間の両端を区画する固定側環状シール
と移動側環状シール、上記成形用加圧空間に圧力流体を
送って該素管部分を膨出させる成形用圧力流体手段、お
よび上記膨出部側面を移動側割型で固定側割型に向かっ
て押圧する蛇腹形成用押圧手段を備えた金属製蛇腹管の
製造装置において、上記固定側環状シールと移動側環状
シールの嵌合溝を形成する三面のうちの一面を夫々油圧
シリンダによって移動自在とした部材により構成したこ
とを特徴とする金属製蛇腹缶の製造装置。1. A fixed-side split mold and a movable-side split mold with a hydraulic cylinder for opening and closing arranged outside the blank pipe, and a fixed side arranged inside the blank pipe to define both ends of a molding pressurizing space. An annular seal and a moving side annular seal, a molding pressure fluid means for sending a pressure fluid to the molding pressurizing space to bulge the raw pipe portion, and a swelling part side surface with a moving side split mold and a fixed side split mold. In a manufacturing apparatus of a metal bellows tube having a bellows forming pressing means for pushing toward each other, one of three surfaces forming a fitting groove of the fixed side annular seal and the moving side annular seal is moved by a hydraulic cylinder, respectively. An apparatus for manufacturing a metal bellows can, which is configured by a freely movable member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4211283A JP2550835B2 (en) | 1992-08-07 | 1992-08-07 | Metal bellows tube manufacturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4211283A JP2550835B2 (en) | 1992-08-07 | 1992-08-07 | Metal bellows tube manufacturing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0655227A true JPH0655227A (en) | 1994-03-01 |
| JP2550835B2 JP2550835B2 (en) | 1996-11-06 |
Family
ID=16603372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4211283A Expired - Lifetime JP2550835B2 (en) | 1992-08-07 | 1992-08-07 | Metal bellows tube manufacturing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2550835B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4840488A (en) * | 1986-03-14 | 1989-06-20 | Mitutoyo Mfg. Co., Ltd. | Photoelectric type displacement detecting instrument |
| KR20040068676A (en) * | 2003-01-27 | 2004-08-02 | 임원일 | High Pressure Bellows Forming Device and High Pressure Bellows Forming Method using thereof |
| KR100459999B1 (en) * | 2002-01-04 | 2004-12-04 | 김수환 | Apparatus for manufacturing flexible metallic pipe |
| KR100806925B1 (en) * | 2006-07-27 | 2008-02-26 | 경북대학교 산학협력단 | Device For Forming The Roll Of Bellows Pipe |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071710B (en) * | 2013-02-01 | 2014-12-24 | 吕季明 | Hydraulic volume control forming device for metal corrugated pipe |
-
1992
- 1992-08-07 JP JP4211283A patent/JP2550835B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4840488A (en) * | 1986-03-14 | 1989-06-20 | Mitutoyo Mfg. Co., Ltd. | Photoelectric type displacement detecting instrument |
| KR100459999B1 (en) * | 2002-01-04 | 2004-12-04 | 김수환 | Apparatus for manufacturing flexible metallic pipe |
| KR20040068676A (en) * | 2003-01-27 | 2004-08-02 | 임원일 | High Pressure Bellows Forming Device and High Pressure Bellows Forming Method using thereof |
| KR100806925B1 (en) * | 2006-07-27 | 2008-02-26 | 경북대학교 산학협력단 | Device For Forming The Roll Of Bellows Pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2550835B2 (en) | 1996-11-06 |
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