JPH04224926A - Folded flare processing machine for tube material - Google Patents
Folded flare processing machine for tube materialInfo
- Publication number
- JPH04224926A JPH04224926A JP41496690A JP41496690A JPH04224926A JP H04224926 A JPH04224926 A JP H04224926A JP 41496690 A JP41496690 A JP 41496690A JP 41496690 A JP41496690 A JP 41496690A JP H04224926 A JPH04224926 A JP H04224926A
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- tube material
- section
- folded
- folding
- 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
- 239000000463 material Substances 0.000 title claims abstract description 47
- 230000001154 acute effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
- 229920006015 heat resistant resin Polymers 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】この発明はプラスチックのチュー
ブ材の先端を拡径しかつ該拡径部をチューブ側に折返し
加工をなす折返しフレア加工機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding/flaring machine for expanding the diameter of the tip of a plastic tube material and folding the enlarged diameter portion back toward the tube side.
【０００２】0002
【従来の技術】例えば添付の図面の図５および図６に図
示したように、プラスチックチューブのためのシール性
の高い継手構造として、チューブ５０先端側に折返しフ
レア部５１を形成し、この折返しフレア部５１の折返し
溝部５２にテーパ状のウェッジリング５３を嵌挿し、し
かるのち袋ナット５５を継手本体６０に螺着して前記ウ
ェッジリング５３とチューブ５０とを一体に圧締するよ
うにしたものが提案されている。この構造によれば、チ
ューブ５０先端の折返しフレア部５１はウェッジリング
５３によって継手本体６０に密に圧接され、強固にシー
ルすることができる。2. Description of the Related Art For example, as shown in FIGS. 5 and 6 of the accompanying drawings, as a joint structure with high sealability for plastic tubes, a folded flare part 51 is formed on the distal end side of a tube 50, and this folded flare part 51 is formed on the distal end side of a tube 50. A tapered wedge ring 53 is fitted into the folded groove 52 of the portion 51, and then a cap nut 55 is screwed onto the joint body 60 to press the wedge ring 53 and tube 50 together. Proposed. According to this structure, the folded flare portion 51 at the tip of the tube 50 is tightly pressed against the joint body 60 by the wedge ring 53, and a strong seal can be achieved.
【０００３】前記した構造における折返しフレア部５１
を得るには、従来では、チューブ５０先端部を溶融温度
近辺まで加熱し軟化させた後、前記先端部を押し広げて
円周部外側方向に折り返しているのであるが、しかしな
がら、この従来方法では、手作業であるために煩雑で作
業効率も上がらないばかりか、フッ素樹脂あるいはＰＦ
Ａなど高耐熱性を有する樹脂からなるチューブはこのよ
うな折返し加工が非常に困難であった。また、しばしば
、加熱によってチューブ本体が変質したり、フレア部の
形状に歪が生じたりする問題が起きていた。[0003] Folded flare portion 51 in the above structure
In order to obtain this, conventionally, the tip of the tube 50 is heated to around the melting temperature to soften it, and then the tip is pushed out and folded back toward the outside of the circumference.However, in this conventional method, , not only is it complicated and does not improve work efficiency because it is a manual process, but also fluororesin or PF
It is extremely difficult to fold a tube made of a resin having high heat resistance such as A in this way. Further, problems often arise in which the tube body changes in quality or the shape of the flared portion becomes distorted due to heating.
【０００４】0004
【発明が解決しようとする課題】この発明は上記した問
題点に鑑み提案されたものであって、チューブ材の先端
を極めて容易に拡径し折返しフレア形状に加工すること
ができる新規な加工装置を提案するものである。[Problems to be Solved by the Invention] This invention has been proposed in view of the above-mentioned problems, and is a novel processing device that can extremely easily enlarge the diameter of the tip of a tube material and process it into a folded flare shape. This is what we propose.
【０００５】[0005]
【課題を解決するための手段】すなわち、この発明は、
被加工チューブ材の鋭角状折返しフレア部の折返し溝形
状を規定する鋭角状のテーパ状筒部よりなる折返し型部
を先端側に有する被加工チューブ材のための保持部材と
、前記保持部材の折返し型部と対向して前進後退可能に
設けられ、先端側に被加工チューブ材内側に挿入される
細径部と、前記細径部に連続して徐々に大径化して被加
工チューブ材をフレア状に拡径加工するテーパ状大径部
とを有する拡径部材と、前記拡径部材に前進後退可能に
設けられ、被加工チューブ材の拡径されたフレア部と当
接して前記保持部材の折返し型部に沿って該フレア部を
折り返す曲面よりなる大径の筒状先端部を有する折返し
部材とからなることを特徴とするチューブ材の折返しフ
レア加工機に係る。[Means for solving the problem] That is, this invention
A holding member for a workpiece tube material having a folded part on the distal end side formed of an acute-angled tapered cylindrical part that defines a folding groove shape of an acute folded flare part of the workpiece tube material, and a folding part of the holding member. A small diameter part is provided facing the mold part so as to be able to move forward and backward, and is inserted into the inside of the tube material to be processed on the tip side, and the diameter of the tube material to be processed is gradually increased in succession to the narrow diameter part to flare the tube material to be processed. a diameter-expanding member having a tapered large-diameter portion whose diameter is expanded in a shape; the diameter-expanding member is provided so as to be movable forward and backward; the diameter-expanding member contacts the enlarged-diameter flare portion of the tube material to be processed and holds the holding member; The present invention relates to a folding and flaring machine for a tube material, comprising a folding member having a large-diameter cylindrical tip portion made of a curved surface that folds back the flared portion along the folding mold portion.
【０００６】[0006]
【実施例】以下添付の図面に従ってこの発明を詳細に説
明する。図１はこの発明の一例を示す折返しフレア加工
機の断面を表すとともに、この発明装置によってチュー
ブ材を拡径する状態を表す断面図、図２はこの発明装置
によってチューブ材の折返しフレア部を形成する状態を
表す断面図、図３は拡径されたフレア部の折り返し初期
の状態を表す要部拡大断面図、図４は同じく折返し状態
を表す要部拡大断面図、図５はこの発明装置によるチュ
ーブ材を用いた継手構造を示す分解斜視図、図６は同じ
く継手構造を示す断面図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a cross-sectional view of a folded flare processing machine showing an example of the present invention, and a cross-sectional view showing the state in which the diameter of a tube material is expanded by the device of this invention. FIG. FIG. 3 is an enlarged sectional view of the main part showing the initial state of folding of the enlarged flare part, FIG. 4 is an enlarged sectional view of the main part showing the same folded state, and FIG. FIG. 6 is an exploded perspective view showing a joint structure using a tube material, and FIG. 6 is a sectional view similarly showing the joint structure.
【０００７】図１に図示したように、この発明のチュー
ブ材の折返しフレア加工機１０は、保持部材２０と拡径
部材３０と折返し部材４０とから構成されている。As shown in FIG. 1, the tube material folding and flaring machine 10 of the present invention is comprised of a holding member 20, a diameter expanding member 30, and a folding member 40.
【０００８】保持部材２０は被加工部材であるチューブ
材６０を保持するもので、図示の実施例では、Ｕ字形状
に形成された本体ブロック１１の一方の腕部１２に形成
されている。この保持部材２０は前記本体ブロック１１
の部分からなる固定部２１と図示しない公知のクランプ
手段によって動かされる可動部２２よりなり、固定部２
１と可動部２２間の挟持部２３に被加工チューブ材６０
が挟持される。そして、この保持部材２０には、前記本
体ブロック１１内側に、前記挟持部２３に連接して、被
加工チューブ材６０の端部６１に折返し溝形状を規定す
る鋭角状テーパ状筒部よりなる折返し型部２５が形成さ
れている。なお、実施例の折り返し型部２５は固定側半
筒部２５Ａと可動側半筒部２５Ｂによって構成される。The holding member 20 holds a tube material 60 which is a workpiece, and in the illustrated embodiment is formed on one arm portion 12 of a main body block 11 formed in a U-shape. This holding member 20 is the main body block 11
The fixed part 21 is made up of a fixed part 21 and the movable part 22 is moved by a known clamping means (not shown).
1 and the movable part 22 between the clamping part 23 and the tube material 60
is pinched. The holding member 20 has an acute-angled tapered cylindrical portion formed on the inside of the main body block 11, connected to the clamping portion 23, and defining a folded groove shape in the end portion 61 of the tube material 60 to be processed. A mold portion 25 is formed. The folded part 25 of the embodiment is composed of a fixed half-tube part 25A and a movable half-tube part 25B.
【０００９】拡径部材３０は、図示のように、Ｕ字状本
体ブロック１１の他方の腕部１３に螺着されて、該本体
ブロック１１の内側方向に、前記保持部材２０の折り返
し型部２５と対向して前進後退可能に設けられる。図の
符号３１は拡径部材の本体部、３２はハンドル部で、３
３は本体部３１に刻設された外ねじ部、１５は該外ねじ
部３３と螺合する本体ブロック１１の内ねじ部である。
拡径部材３０の本体部３１の先端には、被加工チューブ
材６０の内側に挿入される細径部３５と、該細径部３５
に連続して徐々に大径化して被加工チューブ材６０をフ
レア状に拡径するテーパ状大径部３６が形成されている
。As shown in the figure, the diameter expanding member 30 is screwed onto the other arm portion 13 of the U-shaped main block 11, and extends inwardly from the folded portion 25 of the holding member 20. It is provided so that it can move forward and backward facing the other direction. Reference numeral 31 in the figure is the main body of the diameter expanding member, 32 is the handle, and 3
Reference numeral 3 designates an externally threaded portion carved in the main body portion 31, and 15 represents an internally threaded portion of the main body block 11 that is screwed into the externally threaded portion 33. The main body portion 31 of the diameter expanding member 30 has a narrow diameter portion 35 inserted into the inside of the tube material 60 to be processed, and a narrow diameter portion 35 at the tip of the main body portion 31 of the diameter expanding member 30 .
A tapered large-diameter portion 36 is formed that gradually increases in diameter continuously and expands the diameter of the tube material 60 to be processed into a flare shape.
【００１０】折返し部材４０は筒状本体部４１と筒状先
端部４２とからなり、図１およびその作動状態を示す図
２からもよりよく理解されるように、前記拡径部材３０
の本体部３１の外ねじ部３３に螺着して前進後退可能に
設けられている。符号４３は拡径部材本体部３１の外ね
じ部３３と螺合する内ねじ部である。折返し部材４０の
筒状先端部４２の先端は大径の曲面４５によって構成さ
れていて、被加工チューブ材先端部６１の拡径されたフ
レア部６２と当接して該フレア部６２を前記折返し型部
２５に沿って折り曲げる。The folding member 40 consists of a cylindrical main body portion 41 and a cylindrical tip portion 42, and as can be better understood from FIG. 1 and FIG. 2 showing its operating state, the diameter expanding member 30
It is screwed onto the external threaded part 33 of the main body part 31 so that it can move forward and backward. Reference numeral 43 denotes an internal threaded portion that is threadedly engaged with the external threaded portion 33 of the diameter-expanding member main body portion 31. The tip of the cylindrical tip 42 of the folding member 40 is constituted by a large-diameter curved surface 45, and comes into contact with the enlarged diameter flared portion 62 of the tip 61 of the tube material to be processed, so that the flared portion 62 is folded into the folded shape. Fold along section 25.
【００１１】次に、この発明装置の作動について説明す
る。被加工チューブ材６０は、図１に図示のように、そ
の先端部６１が折返し型部２５より所定長さだけ突出す
るように、保持部材２０の挟持部２３に保持される。被
加工チューブ材先端部６１の突出長さはフレア加工され
る部分であって、予め定められる。また、チューブ材６
０の保持は公知のクランプ機構によってしっかり行なわ
れる。Next, the operation of the inventive device will be explained. As shown in FIG. 1, the tube material 60 to be processed is held by the clamping part 23 of the holding member 20 so that its tip 61 protrudes from the folded part 25 by a predetermined length. The protruding length of the tip end portion 61 of the tube material to be processed is the portion to be flared, and is determined in advance. In addition, tube material 6
0 is securely maintained by a known clamping mechanism.
【００１２】次に、図１の鎖線下部に示されるように、
拡径部材３０のハンドル３２を回転してその本体部３１
を前進して、その先端の細径部３５を被加工チューブ材
先端部６１内に挿入し、さらに、該細径部３５に連設さ
れたテーパ状大径部３６を前進することによって前記被
加工チューブ材先端部６１を徐々に拡径する。この実施
例では、ハンドル３２を回すことによって拡径部材３０
を前進させているが、公知のモータなどの動力によるこ
とも可能である。また、前記細径部３５内にヒーター等
を内蔵してチューブ材先端部を適度に加温し軟化させて
拡径してもよい。Next, as shown below the chain line in FIG.
Rotate the handle 32 of the diameter expanding member 30 to remove the main body 31.
is advanced, the narrow diameter portion 35 at the tip thereof is inserted into the tip portion 61 of the tube material to be processed, and the tapered large diameter portion 36 connected to the narrow diameter portion 35 is further advanced. The diameter of the processed tube material tip 61 is gradually expanded. In this embodiment, by turning the handle 32, the expanding member 30 is
Although the robot is moved forward, it is also possible to use power from a known motor or the like. Alternatively, a heater or the like may be built into the narrow diameter portion 35 to appropriately heat and soften the tip of the tube material to expand its diameter.
【００１３】さらに、図２の上半分に示したように、拡
径部材３０を前進して、そのテーパ状大径部３６の肩部
３７がチューブ材６０をして折返し型部２５の先端２６
と当接するまで押し広げ、先端部６１をフレア状に拡径
する。Furthermore, as shown in the upper half of FIG.
The tip portion 61 is expanded in diameter into a flared shape.
【００１４】次いで、図２の下半分および図３ならびに
図４に示すように、拡径されたチューブ材６０のフレア
部６２が折返される。すなわち、折返し部材４０の筒状
本体部４１を回転し、折返し部材４０を折返し型部２５
方向へ回転させながら前進する。図３および図４からよ
りよく理解されるように、この折返し部材４０の筒状先
端部４２はその先端が曲面４５によって形成されている
ので、前記折返し部材４０が回転しながら前進するに従
って前記曲面４５が始めは、図３のようにその先端部４
５Ａが拡径されたフレア部６２と当接して後方へ折曲げ
られ、次いで図４のように曲面部下部４５Ｂにおいて前
記フレア部６２を前記保持部材２０の折返し型部２５の
表面に押さえつけるようにして折り返す。折返し型部２
５の先端部は鋭角状に形成されているのでチューブ材は
鋭角状の折返し溝形状を有するフレア形状に形成される
。Next, as shown in the lower half of FIG. 2 and in FIGS. 3 and 4, the flared portion 62 of the tube material 60 with its expanded diameter is folded back. That is, the cylindrical main body portion 41 of the folding member 40 is rotated, and the folding member 40 is folded into the folding mold portion 25.
Move forward while rotating in the direction. As can be better understood from FIGS. 3 and 4, the tip of the cylindrical tip 42 of the folding member 40 is formed by a curved surface 45, so that as the folding member 40 moves forward while rotating, the curved surface 45 is initially attached to its tip 4 as shown in Figure 3.
5A comes into contact with the enlarged diameter flare part 62 and is bent backward, and then, as shown in FIG. Fold back. Folded part 2
Since the tip of the tube 5 is formed into an acute angle, the tube material is formed into a flared shape having an acute folded groove shape.
【００１５】[0015]
【発明の効果】以上図示し説明したように、この発明の
チューブ材の折返しフレア加工機によれば、極めて簡単
かつ容易にしかも確実にチューブ材の折り返しフレア加
工をおこなうことができる。この発明によれば、従来の
ように、特にチューブ材を予め加熱、軟化させることな
く折返し加工ができるのでチューブ材を変質させること
がなく、また従来この種加工が困難であったフッ素樹脂
等の耐熱性樹脂などでも簡便にかつ効率良く折返し加工
を行うことができるようになった。As shown and explained above, according to the tube material folding and flaring machine of the present invention, tube material can be folded and flared extremely simply and easily, and yet reliably. According to this invention, the folding process can be performed without pre-heating and softening the tube material as in the past, so the tube material does not change in quality, and it is also possible to fold back the tube material without pre-heating or softening it, unlike in the past. It has become possible to fold back heat-resistant resins easily and efficiently.
【００１６】さらに、拡径部材および折返し部材を回転
させながら押し込むものにあっては、均一なフレア加工
が可能となり、折返し溝形状の精度も向上し、継手構造
に使用されるチューブ材の品質向上を図ることができる
。Furthermore, when the diameter expanding member and the folded member are pushed in while rotating, uniform flaring becomes possible, the accuracy of the folded groove shape is improved, and the quality of the tube material used in the joint structure is improved. can be achieved.
【図１】この発明の一例を示す折返しフレア加工機の断
面を表すとともに、この発明装置によってチューブ材を
拡径する状態を表す断面図である。FIG. 1 is a cross-sectional view of a folding and flaring machine showing an example of the present invention, and a sectional view showing a state in which the diameter of a tube material is expanded by the device of the present invention.
【図２】この発明装置によってチューブ材の折返しフレ
ア部を形成する状態を表す断面図である。FIG. 2 is a sectional view showing a state in which a folded flare portion of a tube material is formed by the apparatus of the present invention.
【図３】拡径されたフレア部の折り返し初期の状態を表
す要部拡大断面図である。FIG. 3 is an enlarged cross-sectional view of a main part showing the initial state of folding back the flared portion having an enlarged diameter.
【図４】同じく折返し状態を表す要部拡大断面図である
。FIG. 4 is an enlarged cross-sectional view of a main part similarly showing a folded state.
【図５】この発明装置によるチューブ材を用いた継手構
造を示す分解斜視図である。FIG. 5 is an exploded perspective view showing a joint structure using a tube material according to the device of the present invention.
【図６】同じく継手構造を示す断面図である。FIG. 6 is a cross-sectional view showing the joint structure.
１０ 折返しフレア加工機 ２０ 保持部材 ２５ 折返し型部 ３０ 拡径部材 ３５ 細径部 ３６ テーパ状大径部 ４０ 折返し部材 ４２ 筒状先端部 ４５ 曲面 ６２ フレア部 10 Folding flare processing machine 20 Holding member 25 Folded part 30 Diameter expansion member 35 Narrow diameter part 36 Tapered large diameter part 40 Folding member 42 Cylindrical tip 45 Curved surface 62 Flare part
Claims (2)
ア部の折返し溝形状を規定する鋭角状のテーパ状筒部よ
りなる折返し型部を先端側に有する被加工チューブ材の
ための保持部材と、前記保持部材の折返し型部と対向し
て前進後退可能に設けられ、先端側に被加工チューブ材
内側に挿入される細径部と、前記細径部に連続して徐々
に大径化して被加工チューブ材をフレア状に拡径加工す
るテーパ状大径部とを有する拡径部材と、前記拡径部材
に前進後退可能に設けられ、被加工チューブ材の拡径さ
れたフレア部と当接して前記保持部材の折返し型部に沿
って該フレア部を折り返す曲面よりなる大径の筒状先端
部を有する折返し部材とからなることを特徴とするチュ
ーブ材の折返しフレア加工機。1. A holding member for a workpiece tube material, the holding member having a folded part on the distal end side, which is made of an acute tapered cylindrical part that defines a folding groove shape of an acute folded flare part of the workpiece tube material; A small diameter part is provided facing the folded part of the holding member so as to be able to move forward and backward, and is inserted into the inside of the tube material to be processed on the distal end side, and a small diameter part that gradually increases in diameter continuously from the small diameter part to be covered. a diameter expanding member having a tapered large diameter portion for expanding the diameter of a processed tube material into a flared shape; and a diameter expanding member that is provided in the diameter expanding member so as to be movable forward and backward, and is in contact with the flared portion of the processed tube material. and a folding member having a large diameter cylindrical tip made of a curved surface that folds back the flared part along the folded part of the holding member.
び折返し部材が回転しつつ前進後退することを特徴とす
るチューブ材の折返しフレア加工機。2. The folding and flaring machine for tube material according to claim 1, wherein the diameter expanding member and the folding member move forward and backward while rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP41496690A JPH0651350B2 (en) | 1990-12-26 | 1990-12-26 | Tube flare processing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP41496690A JPH0651350B2 (en) | 1990-12-26 | 1990-12-26 | Tube flare processing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04224926A true JPH04224926A (en) | 1992-08-14 |
| JPH0651350B2 JPH0651350B2 (en) | 1994-07-06 |
Family
ID=18523384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP41496690A Expired - Fee Related JPH0651350B2 (en) | 1990-12-26 | 1990-12-26 | Tube flare processing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0651350B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007048582A (en) * | 2005-08-10 | 2007-02-22 | Yodogawa Hu-Tech Kk | Gasket |
| JP2011122666A (en) * | 2009-12-10 | 2011-06-23 | Sekisui Chem Co Ltd | Pipe port enlarging apparatus of regeneration pipe and method of enlarging pipe port of regeneration pipe using the same |
| WO2021165263A1 (en) * | 2020-02-17 | 2021-08-26 | Bio Optimal Limited | Apparatus for creating a rolled back end |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0656280U (en) * | 1993-01-14 | 1994-08-05 | 株式会社アミリ | Snow stopper |
-
1990
- 1990-12-26 JP JP41496690A patent/JPH0651350B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007048582A (en) * | 2005-08-10 | 2007-02-22 | Yodogawa Hu-Tech Kk | Gasket |
| JP2011122666A (en) * | 2009-12-10 | 2011-06-23 | Sekisui Chem Co Ltd | Pipe port enlarging apparatus of regeneration pipe and method of enlarging pipe port of regeneration pipe using the same |
| WO2021165263A1 (en) * | 2020-02-17 | 2021-08-26 | Bio Optimal Limited | Apparatus for creating a rolled back end |
| GB2607765A (en) * | 2020-02-17 | 2022-12-14 | Bio Optimal Ltd | Apparatus for creating a rolled back end |
| GB2607765B (en) * | 2020-02-17 | 2023-08-30 | Bio Optimal Ltd | Apparatus for creating a rolled back end |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0651350B2 (en) | 1994-07-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |