JPS60161118A - Manufacture of rubber or resin tubular product - Google Patents
Manufacture of rubber or resin tubular productInfo
- Publication number
- JPS60161118A JPS60161118A JP59016676A JP1667684A JPS60161118A JP S60161118 A JPS60161118 A JP S60161118A JP 59016676 A JP59016676 A JP 59016676A JP 1667684 A JP1667684 A JP 1667684A JP S60161118 A JPS60161118 A JP S60161118A
- Authority
- JP
- Japan
- Prior art keywords
- cores
- core
- sealing member
- rubber
- resin material
- 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
- Moulds For Moulding Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】 本発明はゴム又は樹脂製管状物の製法に関する。[Detailed description of the invention] The present invention relates to a method of manufacturing a rubber or resin tubular article.
従来、ゴム又は樹脂製の直管は、第6図に示す如く複数
本の中芯t1) [1)を真直に繋ぎ合せ、これを押出
し成形機のクロスへラドダイ(図示せず)に通して中芯
の外周を材料(4a)にて覆う工程、材料(4a)が固
まれば中芯(1)を抜く工程によって製造されている。Conventionally, straight pipes made of rubber or resin are made by connecting a plurality of cores t1) [1) straight together as shown in Fig. 6, and passing this through a rad die (not shown) to the cross of an extrusion molding machine. It is manufactured by a step of covering the outer periphery of the core with material (4a), and a step of removing the core (1) once the material (4a) has solidified.
ところが、中芯の突合せ部に僅かながらも隙間が生じる
ことは避けられず、該隙間に流動性の良い材料が入り込
み、バIJ (41iが生じた。このパリは取り除くこ
とは困難で管状動向を通す流体に対して抵抗となる問題
があった。However, it is unavoidable that a slight gap will be created at the butt part of the core, and a material with good fluidity will enter the gap, resulting in a burr IJ (41i). There was a problem with resistance to the fluid passing through it.
又、上記問題は押出し成形によって製造された直管に限
らず、金型内で複数の中芯を直角に突き合せ、中芯と金
型との間に形成されるキャビティに材料を充満させて曲
がり管を製造する場合にも起こった。Moreover, the above problem is not limited to straight pipes manufactured by extrusion molding, but also when multiple cores are butted at right angles in a mold and the cavity formed between the core and the mold is filled with material. This also happened when manufacturing bent pipes.
本発明は中芯の突合せ部の隙間への材料の侵入を阻止し
て内面にパリが生じない管状物を作ることを目的とする
。The object of the present invention is to prevent material from entering the gap between the abutting portions of the cores, and to produce a tubular product that does not have any cracks on its inner surface.
複数の中芯を突き合せ、中芯の外周を液状のゴム又は樹
脂材料にて覆い、材料が固まった後、中芯を外して管状
物を形成するという基本工程は従前通りであるが、中芯
を材料で覆う前に管状物の材料に対して接着性が良(、
中芯に対して接着性の少ない材料で形成されたシール部
材を中芯の突aぜ線の全長が隠れる様に中芯の突合せ部
の外周に密着して嵌めておくことを特徴とする。The basic process of butting together multiple cores, covering the outer periphery of the cores with liquid rubber or resin material, and removing the cores after the material hardens to form a tubular object is the same as before, but Before covering the core with material, make sure it has good adhesion to the material of the tube (,
It is characterized in that a sealing member formed of a material with low adhesiveness to the core is tightly fitted to the outer periphery of the abutting part of the core so that the entire length of the crease line of the core is hidden.
〔作用及び効果J
中芯の突合せ部にはシール部材が密着して被さっており
、突合せ線の隙間からの材料の侵入は確実に阻止され、
又、材料とシール材は接着性が良いので一体物となって
シール部材は管状物の壁内の一部となる。[Function and Effect J: The abutting portion of the core is tightly covered with a sealing member, which reliably prevents material from entering through the gap between the butt lines.
Further, since the material and the sealing material have good adhesive properties, they become an integral part, and the sealing member becomes a part of the wall of the tubular object.
従ってシール部材を管内に残して中芯だけを抜き出すこ
とが出来、又、管状物の内面にパリは一切生じない。Therefore, it is possible to leave only the core inside the tube while leaving the sealing member inside the tube, and no cracks are generated on the inner surface of the tube.
以下図面に示す実施例に基つき、本発明を具体的に説明
する。The present invention will be specifically described below based on embodiments shown in the drawings.
第1図は直管(4)を製造するための中芯(1)(1)
を示しており、両中芯(11(11はネジ係合等の係合
手段(2)によって着脱可能に真直に接続されている。Figure 1 shows the core (1) (1) for manufacturing straight pipe (4).
, both cores (11 (11 is removably connected straight) by engagement means (2) such as screw engagement.
中芯(1) (1)の突合せ部の外周には突合せ線(5
)の全長が隠れる様に可撓性のリング状シール部材(3
)が中芯+11 +1+に密着して嵌められている。There is a butt line (5) on the outer periphery of the butt part of the center core (1)
) with a flexible ring-shaped seal member (3
) is fitted closely to the core +11 +1+.
シール部材(3)は形成すべき直管(4)のゴム又は相
脂材料(4a)に対して接着性の良好なりの、望ましく
は形成すべき直管の材料と同じゴム又は樹脂材料で形成
されている。The sealing member (3) is preferably made of the same rubber or resin material as the material of the straight pipe (4) to be formed, which has good adhesion to the rubber or reciprocal material (4a) of the straight pipe (4) to be formed. has been done.
実施例では直管の材料はシリコーンゴム、シール部材(
3)もシリコーンゴム製である。In the example, the material of the straight pipe is silicone rubber and the sealing member (
3) is also made of silicone rubber.
然して、上記の様に突合せ部にシール部材(3)を嵌め
た中芯+1) LL)を押出し成形機のクロスヘッド(
図示せず)を通し、中芯(1)の外周を連続的に材料(
4a)で覆う。However, as described above, the core +1) LL) with the sealing member (3) fitted in the butt part was inserted into the crosshead of the extrusion molding machine (
The material (not shown) is passed continuously around the outer periphery of the core (1).
Cover with 4a).
このとき、中芯(1) tl)の突合せ線(5)の隙間
は、シール部材(3)によってシールされているため材
料(4a)が侵入することはない。又、シール部材(3
)に対して中芯(1)の外周を覆う材料(4a)は接着
力が良好であるから、シール部材(3)と材料(4a)
ハ強固に結合して一体物となる。At this time, the gap between the butt lines (5) of the core (1) tl) is sealed by the sealing member (3), so the material (4a) does not enter. In addition, the seal member (3
), since the material (4a) covering the outer periphery of the core (1) has good adhesive strength, the sealing member (3) and the material (4a)
It is strongly connected and becomes a whole.
材料が固まった後、中芯を抜き出せば、直管(4)が完
成する前記の様に中芯の突合せ線からの材料の侵入はな
いため、管の内面にパリは全(生じず、又、シール部材
(3)は管の壁内の一部となって管(4)内に残り、中
芯(1)について出てくることはない。After the material hardens, if you pull out the core, the straight pipe (4) is completed.As mentioned above, there is no material intrusion from the butt line of the core, so there is no paris on the inner surface of the pipe. , the sealing member (3) remains in the tube (4) as part of the wall of the tube and does not come out about the core (1).
第3図は本発明によって製作した三股の管状接手(6)
を示している。Figure 3 shows a three-pronged tubular joint (6) manufactured according to the present invention.
It shows.
」二記接手(6)は3つの筒部f61) +62+ +
63+を互いに直角に突き合せたものである。"The second joint (6) has three cylindrical parts f61) +62+ +
63+ butted against each other at right angles.
上記接手は第3図に示す様に3本の中芯tl) (1)
tl)を金型(図示せず)にて互いに直角に突き合せ
、金型と中芯(1) (11(11との間に形成される
キャビティ内に材料を加圧充填して形成するものであり
、中芯(1) (11(1)の突合せ線(5)には前記
同様形成すべき三股接手(6)に対して接着性の良好な
シール部材(3)が密着して被さって17−−
シール部材(3)は第3図多こ示す様に伸縮性の良好な
資料にて短い筒状に形成されたものの中央部をその周面
を略半周して切込み(5)を入れたものである。第5図
に示す如(上記筒状シール部材(3)の両端及び該切入
み(31)の3ケ所の各開口部(33)(33i (3
1a)lこ第3図1こ示す如く3本の中芯+1) (−
1) +1)を通し、中芯+1) (11(1)の突き
合せ部をシールする。シール部材(3)の伸縮性が良好
であれば、この様にしてシールすることは可能である。The above joint has three central cores tl) (1) as shown in Figure 3.
tl) are butted against each other at right angles in a mold (not shown), and the material is pressurized and filled into the cavity formed between the mold and the core (11). The butt line (5) of the core (1) (11(1)) is covered with a sealing member (3) with good adhesiveness in close contact with the three-pronged joint (6) to be formed in the same manner as described above. 17-- As shown in Figure 3, the sealing member (3) is made of material with good elasticity and is formed into a short cylindrical shape, and a cut (5) is made approximately halfway around the circumference in the center of the material. As shown in FIG. 5, each opening (33) (33i (3
1a) Figure 3 As shown in Figure 1, the three cores +1) (-
1) Pass through +1) and seal the abutting portion of core +1) (11 (1). If the sealing member (3) has good elasticity, it is possible to seal in this way.
本発明は上記の採に真直管、2本の中芯を直角に突き合
せて三股接手以外にも、L字状、或はT字状の管状物の
製造にも実施出来るのは勿論である。Of course, the present invention can be applied to the manufacture of L-shaped or T-shaped tubular products, in addition to the above-mentioned straight pipes and three-pronged joints made by butting two cores at right angles. .
第1図は直管を製造する際の中芯の突き合せ部の状態の
断面図、第2図は三股接手の斜面図、第3図は同上の接
手を作るための中芯の突き合せ状態を示す斜面図、第4
図はシール部材の他の実施例の断面図、第5図は同上の
シール部材を開いた状態の斜面図、第6図は従来例の断
面図である。
(1)・・・中 芯 (3)・・・シール部材出願人
錦城護膜株式会社Figure 1 is a sectional view of the butting part of the core when manufacturing a straight pipe, Figure 2 is a slope view of the three-pronged joint, and Figure 3 is the butt of the core for making the same joint as above. Slope view showing 4th
The figure is a sectional view of another embodiment of the sealing member, FIG. 5 is a perspective view of the same sealing member in an open state, and FIG. 6 is a sectional view of a conventional example. (1)...Inner core (3)...Seal member applicant
Kinjo Gome Co., Ltd.
Claims (1)
対して接着性が良く中芯に対して接着性の少ない材料で
形成されたシール部材を中芯の突き合せ線の全長が隠れ
る様に中芯の突合せ部の外周に密着させて嵌め、中芯の
外周を液状ゴム又は樹脂材料にて覆い、材料が固まった
後、中芯を外して管状物を形成するゴム又は樹脂製管状
物の製法。 ■ 2本の中芯は真直に突き合わせられている特許請求
の範囲第1項に記載のゴム又は樹脂製管状物の製法。 ■ 2本の中芯(1) tl)は直角に突き合わせられ
ている特許請求の範囲第1項に記載のゴム又は樹脂製管
状物の製法。 ■ 3本の中芯は互いに直角に突き合わせられている特
許請求の範囲第1項に記載のゴム又は樹脂製管状物の製
法。[Claims] ■ A plurality of cores are butted against each other, and a sealing member made of a material that has good adhesion to the material of the tubular object to be molded and has little adhesion to the core is pressed against the cores. Fit the core closely to the outer periphery of the mating part so that the entire length of the mating wire is hidden, cover the outer periphery of the core with liquid rubber or resin material, and after the material hardens, remove the core to form a tubular object. A method for manufacturing rubber or resin tubular products. (2) The method for manufacturing a rubber or resin tubular article according to claim 1, wherein the two cores are butted straight against each other. (2) The method for producing a rubber or resin tubular article according to claim 1, wherein the two cores (1) (tl) are butted against each other at right angles. (2) The method for manufacturing a rubber or resin tubular article according to claim 1, wherein the three cores are butted against each other at right angles.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59016676A JPS60161118A (en) | 1984-01-31 | 1984-01-31 | Manufacture of rubber or resin tubular product |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59016676A JPS60161118A (en) | 1984-01-31 | 1984-01-31 | Manufacture of rubber or resin tubular product |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60161118A true JPS60161118A (en) | 1985-08-22 |
JPS6327164B2 JPS6327164B2 (en) | 1988-06-02 |
Family
ID=11922910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59016676A Granted JPS60161118A (en) | 1984-01-31 | 1984-01-31 | Manufacture of rubber or resin tubular product |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60161118A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009067759A1 (en) * | 2007-11-29 | 2009-06-04 | Bluescope Steel Limited | Moulding process and apparatus |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01133448U (en) * | 1988-03-05 | 1989-09-11 | ||
JPH0213444U (en) * | 1988-07-12 | 1990-01-26 | ||
JPH02107360U (en) * | 1989-02-16 | 1990-08-27 |
-
1984
- 1984-01-31 JP JP59016676A patent/JPS60161118A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009067759A1 (en) * | 2007-11-29 | 2009-06-04 | Bluescope Steel Limited | Moulding process and apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS6327164B2 (en) | 1988-06-02 |
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