JPS6321926Y2 - - Google Patents
Info
- Publication number
- JPS6321926Y2 JPS6321926Y2 JP2805681U JP2805681U JPS6321926Y2 JP S6321926 Y2 JPS6321926 Y2 JP S6321926Y2 JP 2805681 U JP2805681 U JP 2805681U JP 2805681 U JP2805681 U JP 2805681U JP S6321926 Y2 JPS6321926 Y2 JP S6321926Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- parallel
- forming
- pair
- roll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Description
【考案の詳細な説明】
本考案は成形ロールに係り、特に円環状パイプ
を平行面を有する偏平なパイプに成形する成形ロ
ールに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a forming roll, and more particularly to a forming roll for forming an annular pipe into a flat pipe having parallel surfaces.
従来、電縫管製造設備等により造管される肉厚
0.5mm以下にしてかつ銅，銅合金の如く軟質の非
鉄金属からなる円環状パイプを、所定曲率半径の
円弧部により端部をそれぞれ接続した平行面を有
する偏平なパイプに成形するには、第１図Ａ，Ｂ
およびＣに示すように、まず、円環状パイプ１
を、その曲率半径とほぼ同等の曲率半径の半円状
の周溝２ａをロール面に形成した対をなす第１の
成形ロール２間に通し、ついで半楕円状の周溝３
ａをロール面に形成した対をなす第２の成形ロー
ル３間に通して楕円状のパイプ１′に成形し、最
後に所望のパイプを半割した如き周溝４ａをロー
ル面に形成した対をなす第３の成形ロール４間を
通して平行面P0，P0を有するパイプ１″に成形し
ている。 Traditionally, the wall thickness of pipes manufactured using ERW pipe manufacturing equipment, etc.
In order to form an annular pipe of 0.5 mm or less and made of a soft non-ferrous metal such as copper or copper alloy into a flat pipe with parallel surfaces whose ends are connected by an arc with a predetermined radius of curvature, Figure 1 A, B
As shown in and C, first, the annular pipe 1
is passed between a pair of first forming rolls 2, each of which has a semicircular circumferential groove 2a with a radius of curvature approximately equal to that of the first forming roll 2, and then passed through a semi-elliptical circumferential groove 3.
A is formed into an elliptical pipe 1' by passing it between a pair of second forming rolls 3 formed on the roll surface, and finally a circumferential groove 4a, which looks like a desired pipe cut in half, is formed on the roll surface. The pipe 1'' having parallel surfaces P 0 and P 0 is formed by passing between the third forming rolls 4 having the same shape.
しかし、かかる構成の成形ロールにより成形さ
れたパイプは、素材の弾性により生ずるスプリン
グバツクによつて、一旦平行に成形された面P0，
P0が第２図に示すように丸味を帯びた成形面P1，
P1を有するものになつてしまう。このような弾
性変形は、最終段となる第３の成形ロール４，４
を複数対用いたとしても避けることができなかつ
た。 However, the pipe formed by the forming rolls with such a configuration is caused by the spring back caused by the elasticity of the material, so that the plane P 0 , which has been formed parallel to each other,
As shown in Fig. 2, P 0 is the rounded molding surface P 1 ,
It ends up having P 1 . Such elastic deformation is caused by the third forming rolls 4, 4, which are the final stage.
Even if multiple pairs of were used, this could not be avoided.
かかる問題に対処するため、前述した第３のロ
ール４，４に代えて、第３図に示すように、ロー
ル面に、中間部を比較的曲率半径の大きい凸曲面
状に形成するとともに両端部付近を中間部に連接
しかつこれより曲率半径の小さい凹曲面状に形成
した周溝５ａを有する対をなすロール５を最終段
に配置してなるものが案出されている。しかし、
このようなロール５，５を通つて成形されるパイ
プ１は、第４図に示すように、所望の平行面
P2，P2が得られるものの、対をなすロール５を
所定量離隔して設けてあるために、平行面P2，
P2の端部を接続する円弧部P3，P3の曲率半径が、
所望の曲率半径、すなわち平行面P2，P2の間隔
の1/2の曲率半径より小さくなり、製品としての
パイプの耐久性に欠ける等の問題を生じていた。 In order to deal with this problem, instead of the third rolls 4, 4 described above, as shown in FIG. A roller 5 has been devised in which a pair of rolls 5 having a circumferential groove 5a formed in a concave curved shape with a radius of curvature smaller than the circumferential groove 5a connected to the intermediate portion in the vicinity thereof is disposed at the final stage. but,
The pipe 1 formed through such rolls 5, 5 is formed into a desired parallel surface as shown in FIG.
Although P 2 , P 2 are obtained, since the pair of rolls 5 are spaced apart by a predetermined distance, the parallel planes P 2 ,
The radius of curvature of the arc parts P 3 and P 3 connecting the ends of P 2 is
The radius of curvature is smaller than the desired radius of curvature, that is, 1/2 the distance between the parallel surfaces P 2 and P 2 , causing problems such as a lack of durability of the pipe as a product.
本考案は上述した問題に鑑みてなされたもの
で、最終段階の成形ロールを、所望の平行面を成
形するためのものと、平行面の端部を接続する円
弧部を所望の曲率半径に成形するものとにより構
成することによつて、円環状のパイプを、所定曲
率半径の円弧部により端部をそれぞれ接続した平
行面を有するパイプに成形することができる成形
ロールの提供にある。以下、第５図以降の図面を
用いてこの考案の実施例を詳細に説明する。 The present invention was developed in view of the above-mentioned problems, and includes a forming roll in the final stage for forming the desired parallel surfaces, and a circular arc connecting the ends of the parallel surfaces to form the desired radius of curvature. An object of the present invention is to provide a forming roll capable of forming an annular pipe into a pipe having parallel surfaces whose ends are respectively connected by arcuate portions having a predetermined radius of curvature. Hereinafter, embodiments of this invention will be described in detail using the drawings from FIG. 5 onwards.
本考案に係る成形ロールは、電縫管製造設備等
による造管される肉厚0.5mm以下にしてかつ銅ま
たは銅合金の如く軟質の非鉄金属からなる円環状
のパイプを、第５図に示すように、平行面６ａ，
６ａを有するとともに、この平行面６ａ，６ａの
両端を両者の間隔の約1/2の曲率半径を有する円
弧部６ｂ，６ｂにより接続した偏平なパイプ６に
成形するための最終段階のもので、第６図および
第７図に示すように、所望のパイプ６の各平行面
６ａを成形するための対をなす平行面成形ロール
７と、所望のパイプ６の各円弧部６ｂを成形する
ための対をなす円弧部成形ロール８とにより構成
されている。 The forming roll according to the present invention is used to form an annular pipe with a wall thickness of 0.5 mm or less and made of a soft non-ferrous metal such as copper or copper alloy using an electric resistance welded pipe manufacturing equipment, as shown in Fig. 5. So, the parallel plane 6a,
6a, and the ends of the parallel surfaces 6a, 6a are connected by arcuate parts 6b, 6b having a radius of curvature of about 1/2 of the distance between the two. As shown in FIGS. 6 and 7, there are a pair of parallel surface forming rolls 7 for forming each parallel surface 6a of the desired pipe 6, and a pair of parallel surface forming rolls 7 for forming each circular arc portion 6b of the desired pipe 6. It is constituted by a pair of circular arc portion forming rolls 8.
すなわち、各平行面成形ロール７は、それぞれ
の軸７ａを互いに平行してかつ相対的に接近離反
自在に設けられるとともに、ロール面７ｂを中間
部に中高とする凸曲面状に形成されている。そし
て、各平行面成形ロール７の軸７ａの端部側に
は、ロール面に、所望のパイプ６における平行面
６ａの間隔約1/2を曲率半径とする周溝８ａを形
成した前記対をなす円弧部成形ロール８が、この
平行面成形ロール７，７を挾持するが如く対向し
て配置されている。 That is, each parallel surface forming roll 7 is provided with its respective shafts 7a parallel to each other so as to be able to move toward and away from each other, and is formed into a convex curved shape with a roll surface 7b having a center height in the middle. Then, on the end side of the shaft 7a of each parallel surface forming roll 7, the pair of circumferential grooves 8a having a radius of curvature equal to about 1/2 of the distance between the parallel surfaces 6a of the desired pipe 6 is formed on the roll surface. A circular arc portion forming roll 8 is arranged to face the parallel surface forming rolls 7, so as to sandwich them therebetween.
なお、円弧部成形ロール８，８は、各平行面成
形ロール７に対して、間隔調整すべく接近離反自
在に設けられているものであり、またそれぞれの
軸８ｂと各平行面成形ロール７の軸７ａとは、恰
も同一平面上にあるが如く配置されているもので
ある。 Note that the arc part forming rolls 8, 8 are provided so as to be able to move toward and away from each parallel surface forming roll 7 in order to adjust the spacing, and the respective shafts 8b and each parallel surface forming roll 7 The shafts 7a are arranged as if they were on the same plane.
したがつて、各平行面成形ロール７および各円
弧部成形ロール８の間隔を適宜に調整し、かつこ
れらの間に前述した如く第１，第２の成形ロール
２，３間を挿通したパイプ１′を挿通すると、パ
イプ１′には、平行面成形ロール７，７により第
６図において左右方向の圧縮力が加えられるとと
もに、この圧縮力の分力により第６図において上
方向の押圧力が付与される。ために、それぞれの
平行面成形ロール７および円弧部成形ロール８を
通過したパイプは、スプリングバツク分が相殺さ
れた平行な面を有するとともに、正確な曲率半径
の円弧部を有するものとなる。 Therefore, the interval between each parallel surface forming roll 7 and each arc part forming roll 8 is adjusted appropriately, and the pipe 1 is inserted between the first and second forming rolls 2 and 3 as described above. When the pipe 1' is inserted, a compressive force is applied to the pipe 1' in the horizontal direction as shown in FIG. Granted. Therefore, the pipe that has passed through each of the parallel surface forming rolls 7 and the circular arc portion forming rolls 8 has parallel surfaces with spring back offset, and also has a circular arc portion with an accurate radius of curvature.
以上の如く本考案は、肉厚0.5mm以下にしてか
つ軟質の非鉄金属からなる円環状パイプを、所定
曲率半径の円弧部により端部をそれぞれ接続した
平行面を有するパイプに成形するためのものにし
て、ロール面を中高の円弧状に形成しかつ前記平
行面の間隔より所定量接近自在に配置した対をな
す平行面成形ロールと、前記対をなす平行面成形
ロールの軸端側にこれらの平行面成形ロールを挾
持するが如く対向配置されかつ前記円弧部と同等
の曲率半径を有する周溝をロール面に形成した対
をなす円弧部成形ロールとからなる成形ロールで
あるから、所定曲率半径の円弧部により端部をそ
れぞれ接続した平行面を有する所望のパイプを確
実に成形することができる。 As described above, the present invention is for forming an annular pipe made of soft non-ferrous metal with a wall thickness of 0.5 mm or less into a pipe having parallel surfaces whose ends are connected by arcuate sections with a predetermined radius of curvature. and a pair of parallel surface forming rolls each having a roll surface formed in a medium-height arc shape and disposed so as to be freely close to each other by a predetermined distance from the distance between the parallel surfaces, and a pair of parallel surface forming rolls on the shaft end side of the pair of parallel surface forming rolls. Since the forming roll is composed of a pair of arc-shaped forming rolls which are arranged opposite to each other so as to sandwich the parallel-surface forming rolls, and a circumferential groove having a radius of curvature equivalent to that of the circular arc part is formed on the roll surface, the forming roll has a predetermined curvature. It is possible to reliably form a desired pipe having parallel surfaces whose ends are connected by a circular arc portion of radius.
第１図Ａ，Ｂ，Ｃは従来の技術の説明図、第２
図は従来技術により成形されたパイプの端面図、
第３図は改良された従来技術の説明図、第４図は
改良された従来技術により成形されたパイプの端
面図、第５図は所望パイプの端面図、第６図およ
び第７図はそれぞれ本考案に係る成形ロールの正
面図および平面図である。
６……パイプ、６ａ……平行面、６ｂ……円弧
部、７……平行面成形ロール、７ｂ……ロール
面、８……円弧部成形ロール、８ａ……周溝。
Figures 1A, B, and C are explanatory diagrams of conventional technology;
The figure shows an end view of a pipe formed using conventional technology.
FIG. 3 is an explanatory diagram of the improved conventional technique, FIG. 4 is an end view of a pipe formed by the improved conventional technique, FIG. 5 is an end view of a desired pipe, and FIGS. 6 and 7 are respectively FIG. 1 is a front view and a plan view of a forming roll according to the present invention. 6... Pipe, 6a... Parallel surface, 6b... Arc part, 7... Parallel surface forming roll, 7b... Roll surface, 8... Arc part forming roll, 8a... Circumferential groove.
Claims (1)
なる円環状パイプを、所定曲率半径の円弧部によ
り端部をそれぞれ接続した平行面を有するパイプ
に成形するためのものにして、ロール面を中高の
円弧状に形成しかつ前記平行面の間隔より所定量
接近自在に配置した対をなす平行面成形ロール
と、前記対をなす平行面成形ロールの軸端側にこ
れらの平行面成形ロールを挾持するが如く対向配
置されかつ前記円弧部と同等の曲率半径を有する
周溝をロール面に形成した対をなす円弧部成形ロ
ールとからなる成形ロール。 This is for forming an annular pipe made of soft non-ferrous metal with a wall thickness of 0.5 mm or less into a pipe with parallel surfaces whose ends are connected by circular arcs with a predetermined radius of curvature. a pair of parallel surface forming rolls formed in an arc shape and arranged so as to be able to approach each other by a predetermined distance from the distance between the parallel surfaces; and these parallel surface forming rolls are sandwiched on the shaft end side of the pair of parallel surface forming rolls. A forming roll comprising a pair of circular arc part forming rolls which are arranged opposite to each other and have circumferential grooves formed on the roll surface having a radius of curvature equivalent to that of the circular arc part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2805681U JPS6321926Y2 (en) | 1981-02-27 | 1981-02-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2805681U JPS6321926Y2 (en) | 1981-02-27 | 1981-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57141814U JPS57141814U (en) | 1982-09-06 |
| JPS6321926Y2 true JPS6321926Y2 (en) | 1988-06-16 |
Family
ID=29825732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2805681U Expired JPS6321926Y2 (en) | 1981-02-27 | 1981-02-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6321926Y2 (en) |
-
1981
- 1981-02-27 JP JP2805681U patent/JPS6321926Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57141814U (en) | 1982-09-06 |
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