JPS62173237A - Manufacture of synthetic resin pipe - Google Patents
Manufacture of synthetic resin pipeInfo
- Publication number
- JPS62173237A JPS62173237A JP61014350A JP1435086A JPS62173237A JP S62173237 A JPS62173237 A JP S62173237A JP 61014350 A JP61014350 A JP 61014350A JP 1435086 A JP1435086 A JP 1435086A JP S62173237 A JPS62173237 A JP S62173237A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- path
- molding
- beltlike
- resin pipe
- 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
- 239000000057 synthetic resin Substances 0.000 title claims abstract description 34
- 229920003002 synthetic resin Polymers 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000000463 material Substances 0.000 claims abstract description 38
- 238000000465 moulding Methods 0.000 claims abstract description 28
- 238000001125 extrusion Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 18
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 238000003786 synthesis reaction Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 abstract description 5
- 235000014676 Phragmites communis Nutrition 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 5
- 101100027969 Caenorhabditis elegans old-1 gene Proteins 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Moulding By Coating Moulds (AREA)
Abstract
Description
【発明の詳細な説明】
（〆１１−の利用分野）
本発明は螺旋状の補強条をもつ合成樹脂管の製１告力ｌ
去に関する。Detailed Description of the Invention (Field of Application of Section 11-) The present invention relates to the production of synthetic resin pipes having spiral reinforcing strips.
Regarding leaving.
（従来の技術）
本発明の出願人は、先にこの種の合成樹脂管に＋：５い
て、仔仁−１の簡処に螺旋状の補強条かない１＋’（ｉ
：ｒｌ都を形成する方法を開発し、特願昭５８−２５８
０１弓として出願した。(Prior Art) The applicant of the present invention has previously developed a synthetic resin tube of this type with a spiral reinforcing strip 1+'(i
:Developed a method to form an RL capital, and filed a patent application in 1982-258.
I applied as a 01 bow.
この先の出願に係る製造方法は、成形用１：軸に帯状素
材と線状素材とを巻付けた１後において、この帯状素材
と線状集材とをローラーで押ｊ１扁・１・化させ、螺旋
状の補強条かない直筒部を成形するごとくしたものであ
る。The manufacturing method related to this earlier application is for forming: 1: After wrapping a strip material and a linear material around a shaft, the strip material and the linear collected material are pressed with a roller to form a flattened material. , a straight cylindrical part without spiral reinforcing stripes is formed.
（発明が解決しようとする問題点）
処で１−記の如き方法により、直筒部を成形する場合、
成形用り軸はその外周に多数のコロを備え、所謂・１之
滑而でないこと、また帯状素材及び線状集材か多少の巻
付は１力を受けてもその形状が変形しない程度にまで冷
却され、所謂゛１′溶融状としていることなどから、前
記の如くローラーを押し付けても帯状素材及び線状集材
か完全にＪｌｌｌｌｌｌｌｌ型に小さな波形として残り
、また直筒部の表面あるいは四面にしわかできるごとき
問題か見い出された。(Problems to be Solved by the Invention) When forming a straight cylindrical portion by the method described in 1-,
The forming shaft has a large number of rollers on its outer periphery, so that it is not so-called one-smooth, and that the shape of the material is not deformed even if a single force is applied to the band-shaped material or linear collected material. Because it is cooled to a so-called 1' molten state, even if the roller is pressed as described above, the strip material and linear material will remain completely in the Jllllllllllll shape as small waveforms, and the surface or four sides of the straight cylindrical part will be I found a problem that I could understand.
（問題点を解決するための１段）
本発明は１・、記した如き問題点を解決すべ〈発明した
もので、帯状素材を押出成形する第１成形路と、線状素
材を押出成形する第２成形路とを備え、この両成形路に
共通の供給路から溶融合成樹脂を供給して、螺旋状の補
強条をもつ合成樹脂管を連続的に成形すると共に、この
成形時において、任、Ｃｔの１１．Ｉ７期に前記第２成
形路からの押出；１１′を零もしくは微：辻に絞り、任
、Ｏｌの筒処に、螺旋状の補強条がない直筒部を成形す
るごとくしたものである（作用）
１−記ト段によれば、第２成形路からの溶融合成樹脂の
押出しをなりシ、もしくは極く僅かにして、第１成形路
のみから溶融合成樹脂を押出し、所謂゛１′、溶融状の
帯状素材だけを成形用主軸に巻付けるものであるから、
成形された合成樹脂管の任、凸、筒処には螺旋状の補強
条がない直筒部が成形される。(First stage for solving the problems) The present invention is intended to solve the problems as described in 1. (1). A second forming path is provided, and molten synthetic resin is supplied to both forming paths from a common supply path to continuously form a synthetic resin pipe having spiral reinforcing strips. , 11 of Ct. In the I7 period, the extrusion from the second forming path; ) According to step 1-g, the extrusion of the molten synthetic resin from the second forming path is reduced to zero or very little, and the molten synthetic resin is extruded only from the first forming path, so-called "1', melting Since only the shaped strip material is wrapped around the molding spindle,
A straight cylindrical portion without spiral reinforcing stripes is formed at the top, convex, and cylindrical portions of the molded synthetic resin pipe.
このように線状素材としての押出；１１を零もしくはｊ
！！（視できる程度の僅かなＩ１１とすることにより、
＋ｌｉｉ記直筒部の平滑度が極めて高（なり、かつ直筒
部にしわが発生するような恐れを防市することができる
。In this way, extrusion as a linear material;
! ! (By making the I11 so small that it can be seen,
+lii The smoothness of the straight cylinder part is extremely high (and the possibility of wrinkles occurring in the straight cylinder part can be prevented).
また前記の如く第１成形路と第２成形路とに共通の供給
路から溶融合成樹脂を供給している状態から、この第２
成形路への供給を絞ると、この第２成形路から押出され
るべき溶融合成樹脂が第１成形路側に送られることにな
って、この第１成形路からの中位時間当たりの押出：辻
が増加し、その結果１）；ｉ記の如く成形される直筒部
の肉厚が、補強条をもつ他の周壁Ｍ＜より厚くなり、こ
の直筒部が補強される。In addition, from the state where the molten synthetic resin is supplied to the first molding path and the second molding path from the common supply path as described above, this second molding path
When the supply to the forming path is reduced, the molten synthetic resin to be extruded from the second forming path is sent to the first forming path, and the extrusion from the first forming path per medium time: Tsuji increases, and as a result, the thickness of the straight cylindrical part formed as in 1); i becomes thicker than the other peripheral wall M< having reinforcing stripes, and this straight cylindrical part is reinforced.
（実施例）
以ド木発明の製造力法を例、■＜図に基づいて詳細に説
明する。(Example) Hereinafter, the manufacturing method of the invention will be explained in detail based on an example and the figures.
第１図は本発明方法により製造された合成樹脂管をｔＪ
＜すもので、図中（１りは円部状の周壁、（１２）は周
ＡＩｙ内面に螺旋状に溶着された補強条、（１３）は補
強条がない直筒部である。Figure 1 shows a synthetic resin pipe manufactured by the method of the present invention.
In the figure, (1) is a circular peripheral wall, (12) is a reinforcing strip spirally welded to the inner surface of the circumference AIy, and (13) is a straight cylindrical portion without any reinforcing strips.
斯かる構造をもつ合成樹脂管は、その直筒部（１３）の
外周にホースバンドなどを外挿した状態で、該直筒部（
１３）を他の合成樹脂管や適宜機器のホースニップル（
図示せず）′り・に差し込み、ホースバンドを締めるこ
とにより、気密状に接続することかできる。A synthetic resin pipe having such a structure is constructed by inserting a hose band or the like around the outer periphery of the straight cylinder part (13).
13) to other synthetic resin pipes or hose nipples of appropriate equipment (
(not shown) and tighten the hose band to make an airtight connection.
しかして前記周壁（ＩＩ）は帯状素材（ａ）により形成
され、また前記補強条（Ｉ２）は線状素材（ｂ）により
形成されるもので、帯状素材（ａ）を押出成形する第１
成形路（２１）と、線状素材（ｂ）を押出成形する第２
成形路（２２）とをもつダイ（２）を用い、この第１成
形路（２１）から゛Ｖ、溶融状で押出される帯状素材（
ａ）と、第２成形路（２２）から押出される線状素材（
ｂ）とを螺旋状で、帯状素材ｈ）の側縁部が市なるよう
に、かつ線状素材（ｂ）か内側になるように成形相Ｉ：
、輔（４）に巻付ける。The peripheral wall (II) is formed of the strip-shaped material (a), and the reinforcing strip (I2) is formed of the linear material (b), and the first step in which the strip-shaped material (a) is extruded.
A forming path (21) and a second forming path for extrusion forming the linear material (b).
Using a die (2) having a forming path (22), from this first forming path (21), a strip material (
a) and the linear material (
Molding phase I: b) in a spiral shape so that the side edge of the strip material h) is open and on the inside of the linear material (b).
, wrap it around the hook (4).
１″、記成形用ｌ：、輔（４）は、例えば傾斜した多数
のコロ（４２）をもつ外商（４１）を備え、該コロ（４
２）の１：。1'', the support (4) is equipped with a foreign exchanger (41) having, for example, a large number of inclined rollers (42), and the rollers (4)
2) No. 1:.
輔（４）を介しての回転により、前記の如く成形用ｌ；
軸（４）１に送出される帯状素＋Ａ’（ａ）と線状素材
（ｂ）とを順次引き取って円部状に成形し、所謂螺旋状
の補強条（１２）をもつ合成樹脂管として成形する。By rotation through the support (4), the molding l as described above;
The strip material +A' (a) and the linear material (b) sent to the shaft (4) 1 are taken up one after another and formed into a circular part to form a synthetic resin pipe with a so-called spiral reinforcing strip (12). Shape.
・ノ」゛前記ダイ（２）の各成形路（２１Ｈ２２）には
、供給装置本体（３）内に形成した１本の供給路（３Ｉ
）から溶融状態の合成樹脂が供給され、即ちこの供給路
（３１）を第１成形路（２Ｉ）に連通させると共に、供
給路（３１）から分岐した連絡路（３２）を介して第２
成形路（２２）に連通させて、この供給路（３１）を両
成形路（３１０３２）の共通した供給路となし、かつ前
記連絡路（３２）に開閉弁（５）を設けて、第２成形路
（２２）の供給路（３１）への連通を遮断可能となし、
即ちこの開閉弁（５）は、弁板（５１）と弁棒（５２）
とからなるもので、この弁棒（５２）を本体（３）にＩ
Ｔ挿保持させると共に、常１１５はスプリング（５３）
により引１−げておくよう構成し、このスプリング（５
３）に抗して弁棒（５２）をド動させ、前記弁板（５１
）を連絡路（３２）の開１１部に１１接させて、前記第
１成形路（２２）の供給路（３１）への連通を遮断すべ
くしている。・Each molding path (21H22) of the die (2) has one feeding path (3I) formed in the feeding device main body (3).
) The synthetic resin in a molten state is supplied from the supply passage (31) to the first molding passage (2I), and the second molding passage (32) is supplied via a communication passage (32) branched from the supply passage (31).
The supply channel (31) is connected to the forming channel (22) to serve as a common supply channel for both the forming channels (31032), and the communicating channel (32) is provided with an on-off valve (5). communication between the forming path (22) and the supply path (31) can be cut off;
That is, this on-off valve (5) has a valve plate (51) and a valve stem (52).
This valve stem (52) is attached to the main body (3).
In addition to T-insertion and retention, 115 is always a spring (53)
This spring (5
3) by moving the valve stem (52) against the valve plate (51).
) is brought into contact with the opening 11 of the communication path (32) to block communication of the first molding path (22) to the supply path (31).
斯くして螺旋状の補強条（１２）をもつ合成樹脂管の成
形１１ｈで任意の時間に前記開閉弁（５）を１ゲ作して
、第２成形路（２２）への溶融合成樹脂の供給を遮断す
るのであって、これにより前記線状素材（ｂ）の成形用
ト輔（４）への送出がなくなり、成形用１軸（４）には
帯状素材（ａ）のみが送出されて螺旋状に在付けられる
。従ってこの場合には螺旋状の補強条（１２）が形成さ
れず、直筒状になるのである。In this way, during the molding 11h of the synthetic resin pipe having the spiral reinforcing strip (12), the opening/closing valve (5) is made once at an arbitrary time, and the molten synthetic resin is poured into the second molding path (22). The supply is cut off, and as a result, the linear material (b) is no longer fed to the forming shaft (4), and only the strip material (a) is fed to the forming shaft (4). Arranged in a spiral. Therefore, in this case, a spiral reinforcing strip (12) is not formed, but a straight cylindrical shape.
このようにして形成された直筒部（１３）は、中漬ｊｍ
か極めて、：’：ｉ ＜、かつ１＋’ｌ筒部（１３）の
表面あるいは四面にしわかできるようなことがなく、シ
かも１簡Ｒ（＜ （１３）の肉１’／が、螺旋状の補強
条（１２）をもつ他の周壁（ＩＩ）ｆｆｌ＜よりもｊ・
ノくなり、即ち第１成形路（２１）と第２成形路（２２
）とにノＩ−通の供給路（３１）から溶融合成樹脂を供
給している状態から、この第２成形路（２２）への溶融
合成樹脂の供給を遮断すると、第２成形路（２２）から
押出されるべき溶融合成樹脂か第１成形路（２１）側に
送られることになって、この第１成形路（２１）から押
出される中位１１．５間゛１またりの帯状素材（ａ）の
押出：１１−が増加し、その結果１）１ｉ記直筒部（＋
３）の肉１’ノが他の周ム１、γ（１１）部よりｊ“ノ
くなり、この的ｉ：？ｒ ｆｆｌ＜ （１３＞の強度を
高めるのである。The straight cylindrical part (13) formed in this way is
It is extremely true that :':i < and 1+'l There is no wrinkling on the surface or all four sides of the cylindrical part (13), and it is possible that the flesh 1'/ of (13) has a spiral shape. The other peripheral wall (II) with reinforcing strips (12) is
In other words, the first forming path (21) and the second forming path (22)
) When the supply of molten synthetic resin to the second molding path (22) is cut off from the state in which the molten synthetic resin is being supplied from the supply path (31) to the second molding path (22), the second molding path (22 ) The molten synthetic resin to be extruded is sent to the first molding path (21), and the middle 11.5 mm long strip is extruded from the first molding path (21). Extrusion of material (a): 11- increases, resulting in 1) 1i straight cylindrical part (+
The meat 1' of 3) is j" thicker than the other peripheral parts 1 and γ (11), increasing the strength of this target i:?r ffl<(13>).
なお、既述実施例では、第１成形路（２１）と第２成形
路（２２）とを同一のグイ（２）に形成したが、この成
形路（２＋）（２２）を独＼１的に別々のタイに１戊形
すへくしでもよい。この場合、第２成形路（２２）を第
１成形路（２１）側の供給路に、開閉弁をもつ連絡管を
介して連通させるのである。In addition, in the previously described embodiment, the first forming path (21) and the second forming path (22) were formed in the same guide (2), but this forming path (2+) (22) was uniquely formed. It is also possible to have 1 戊形桉 in a separate tie. In this case, the second forming path (22) is communicated with the supply path on the first forming path (21) side via a communication pipe having an on-off valve.
また既述実施例では、第２成形路（２１）への溶融合成
樹脂の供給：１１を零にしたものであるが、斯くした場
合、角度螺旋状の補強条（１２）をもつ合成樹脂管を製
造するに当たり、連続運転が行えず、例えば線状素材（
ｂ）の押出開始時、その押出先端を丁゛動により成形用
ト軸（４）に巻付けなければならないのであるが、前記
第２成形路（２２）に供給する溶融合成樹脂の供給斤１
を）、：、全に零とせず、極くイ・Ｙ（かに絞り、例え
ば開閉弁（５）の弁板（５１）に１°、ド力向の貫通ス
リ、／１・を形成したり、土だ弁棒（５２）から弁板（
５１）のド面に１ｊ旧１する連通孔を形成して、開閉弁
（５）の遮断時にあっても、極く僅かの溶融合成樹脂の
供給か確保されるようにしておけば、螺旋状の補強条（
１２）をもつ合成樹脂管の連続的な製造か１１能となる
のである。Furthermore, in the previously described embodiment, the supply of the molten synthetic resin to the second forming path (21): 11 is set to zero, but in this case, the synthetic resin pipe having the angular spiral reinforcing strip (12) is used. When manufacturing, continuous operation is not possible, for example, when manufacturing linear materials (
At the start of the extrusion in b), the tip of the extrusion must be wrapped around the molding shaft (4) by pivoting, and the feed 1 loaf of molten synthetic resin to be supplied to the second molding path (22) is
), :, Do not make it completely zero, but make it extremely narrow, for example, form a 1° through-slot in the direction of the force on the valve plate (51) of the on-off valve (5). or from the valve stem (52) to the valve plate (
If a communication hole 1j old 1 is formed in the do surface of 51) so that even when the on-off valve (5) is shut off, a very small amount of molten plastic resin can be supplied, the spiral shape Reinforcement strip (
12) Continuous production of synthetic resin pipes with 11 functions becomes possible.
（発明の効果）
以１・説明した如く本発明の製造方法によるときは、螺
旋状の補強条をもつ合成樹脂管の任、Ｃ＜ ｆ、１処に
、螺旋状の補強条かない直筒部を形成することができ、
しかもこの直筒部の゛１′滑度は極めて高く、所謂波形
になるようなことかなく、がっしゎができるような恐れ
がなく、その１″、直筒部の肉厚を厚くして、耐強度を
高めｊＩＪるに至ったのである。(Effects of the Invention) As explained in 1., when using the manufacturing method of the present invention, a straight cylindrical portion without a spiral reinforcing strip is placed in the position C<f, 1 of the synthetic resin pipe with a spiral reinforcing strip. can be formed,
In addition, the straight cylinder part has extremely high smoothness, so there is no so-called waveform, and there is no risk of sagging. This resulted in increased strength and strength.
第１図は本発明方法により製造された合成樹脂管の 部
切欠１１面図、第２図は本発明の製造方法で用いられる
製造装置の一部切欠甲面図、第３図はその′皮部の 部
切欠拡人側面図、第４図は従来の合成樹脂管を小す・部
明欠１１而図である。
（，１）・・・帯状累月、（ｂ）・・・線状素材、（１
１）・・・周１１．γ、（＋２）・・・補強条、（１３
）・・・直筒部、（２１）・・・第１成形路、（２２）
・・・第２成形路。
’ｔ１１．ｌ’＋出願人
代理人弁理１ 山 木 ギ
第１図Fig. 1 is a partially cutaway top view of a synthetic resin pipe manufactured by the method of the present invention, Fig. 2 is a partially cutaway top view of the manufacturing equipment used in the manufacturing method of the present invention, and Fig. 3 is a top view of the synthetic resin pipe manufactured by the method of the present invention. Fig. 4 is an enlarged side view of a conventional synthetic resin pipe with 11 parts cut away. (,1)... Band-shaped moon, (b)... Linear material, (1
1)...Zhou 11. γ, (+2)...Reinforcement strip, (13
)...Straight cylinder part, (21)...First forming path, (22)
...Second forming path. 't11. l' + Applicant's attorney's attorney 1 Yamaki Gi Figure 1
Claims (1)
成形路から押出される線状素材とを成形用主軸に螺旋状
に巻付けて、螺旋状の補強条をもつ合成樹脂管を製造す
る方法であって、前記第１成形路と第２成形路とに共通
の供給路から溶融合成樹脂を供給する一方、前記第２成
形路からの押出量を零もしくは微量に絞って、任意の筒
処に螺旋状の補強条がない直筒部を成形する合成樹脂管
の製造方法。A semi-molten strip material extruded from a first forming path, and a second forming path.
A method for manufacturing a synthetic resin pipe having a spiral reinforcing strip by spirally winding a linear material extruded from a forming path around a forming main shaft, the method comprising: a first forming path and a second forming path; A synthesis process in which a straight cylindrical part is formed without a spiral reinforcing strip in any cylindrical part by supplying the molten synthetic resin from a common supply path, while reducing the amount of extrusion from the second molding path to zero or a very small amount. Method of manufacturing resin pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61014350A JPS62173237A (en) | 1986-01-25 | 1986-01-25 | Manufacture of synthetic resin pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61014350A JPS62173237A (en) | 1986-01-25 | 1986-01-25 | Manufacture of synthetic resin pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62173237A true JPS62173237A (en) | 1987-07-30 |
| JPH0550382B2 JPH0550382B2 (en) | 1993-07-28 |
Family
ID=11858616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61014350A Granted JPS62173237A (en) | 1986-01-25 | 1986-01-25 | Manufacture of synthetic resin pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62173237A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5051081A (en) * | 1989-03-03 | 1991-09-24 | Toyox Co., Ltd. | Apparatus for producing spiral pipes with rib |
-
1986
- 1986-01-25 JP JP61014350A patent/JPS62173237A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5051081A (en) * | 1989-03-03 | 1991-09-24 | Toyox Co., Ltd. | Apparatus for producing spiral pipes with rib |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0550382B2 (en) | 1993-07-28 |
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