JPH0796909B2 - Manufacturing method of bellows hose - Google Patents
Manufacturing method of bellows hoseInfo
- Publication number
- JPH0796909B2 JPH0796909B2 JP2296289A JP29628990A JPH0796909B2 JP H0796909 B2 JPH0796909 B2 JP H0796909B2 JP 2296289 A JP2296289 A JP 2296289A JP 29628990 A JP29628990 A JP 29628990A JP H0796909 B2 JPH0796909 B2 JP H0796909B2
- Authority
- JP
- Japan
- Prior art keywords
- ring member
- molding
- bellows
- bellows hose
- manufacturing
- 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 - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 238000000465 moulding Methods 0.000 claims description 24
- 239000000696 magnetic material Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 18
- 239000013013 elastic material Substances 0.000 claims description 16
- 239000012778 molding material Substances 0.000 claims description 16
- 229920000642 polymer Polymers 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000005415 magnetization Effects 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 5
- 229920001084 poly(chloroprene) Polymers 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229920005549 butyl rubber Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 239000012783 reinforcing fiber Substances 0.000 description 2
- 238000001721 transfer moulding Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- KQJQMXFCOHJNDO-UHFFFAOYSA-N N1=NC(=CC2=CC=CC=C12)C(=O)OC(CC)=O Chemical compound N1=NC(=CC2=CC=CC=C12)C(=O)OC(CC)=O KQJQMXFCOHJNDO-UHFFFAOYSA-N 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Description
【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、エアクリーナホース等の耐負圧性と柔軟性と
を必要とする高分子弾性体材料からなる蛇腹ホースの製
造方法に関する。TECHNICAL FIELD The present invention relates to a method of manufacturing a bellows hose made of a polymer elastic material, such as an air cleaner hose, which is required to have negative pressure resistance and flexibility.
〈従来の技術とその課題〉 従来のエアクリーナホース等の蛇腹ホースでは、軽量
化、柔軟性、及び耐負圧性を必要としている。<Conventional Technology and Its Problems> Conventional bellows hoses such as air cleaner hoses require weight reduction, flexibility, and negative pressure resistance.
しかし、柔軟性と耐負圧性とは相反するものである。す
なわち、例えば、肉厚を薄くして、柔軟性を向上させれ
ば、薄肉となることから、負圧に対して変形し易くなつ
てしまう。また、肉厚を厚くして、耐負圧性を向上させ
れば、厚肉となるため、柔軟性が低下するとともに、軽
量化の妨げとなつてしまう。However, flexibility and negative pressure resistance are contradictory. That is, for example, if the wall thickness is reduced and the flexibility is improved, the wall thickness is reduced, so that it is easily deformed by negative pressure. Further, if the wall thickness is increased to improve the negative pressure resistance, the wall thickness is increased, so that the flexibility is reduced and the weight reduction is hindered.
そこで、上記の問題を解決した柔軟性と耐負圧性とを有
した可撓管としては、実開昭58-82578号公報・実開昭58
-99578号公報に記載されているものが知られており、そ
の構成は、蛇腹部の山部に高剛性のリング部材等を配設
させて構成するものであつた。Therefore, as a flexible tube having flexibility and negative pressure resistance that solves the above problems, Japanese Utility Model Laid-Open No. 58-82578 / 58
The one described in Japanese Patent Publication No. 99578 is known, and its configuration is such that a high-rigidity ring member or the like is arranged in the mountain portion of the bellows portion.
しかし、このようなリング部材等を配置させて蛇腹ホー
スを製造する場合には、射出成形等の複数の割型からな
る成形金型に、リング部材等をセツトして、製造するこ
ととなるが、所定の割型にセツトしてから型締めまで
に、リング部材等がずれる場合があり、ずれて成形すれ
ば、不良品となつてしまうことから、歩留りが低下し、
生産性を向上させることができなかつた。However, when the bellows hose is manufactured by arranging such a ring member or the like, the ring member or the like is set in a molding die including a plurality of split molds such as injection molding, and the hose is manufactured. , From the time of setting to a predetermined split mold to the mold clamping, the ring member and the like may be displaced, and if they are misaligned and molded, they will be defective and the yield will decrease,
I couldn't improve productivity.
本発明は、上記の課題に鑑みて、柔軟性と耐負圧性を共
に満足させることができるような、蛇腹部の山部を高剛
性とした高分子弾性体材料からなる蛇腹ホースを、生産
性を向上させて製造することができる蛇腹ホースの製造
方法を提供することを目的とする。In view of the above problems, the present invention provides a bellows hose made of a polymer elastic material having high rigidity in the peak portion of the bellows portion, which can satisfy both the flexibility and the negative pressure resistance. It is an object of the present invention to provide a method of manufacturing a bellows hose that can be improved and manufactured.
〈課題を解決するための手段〉 本発明に係る蛇腹ホースの製造方法は、蛇腹部の山部
が、他部より高剛性に形成され、蛇腹ホース外周面を成
形可能でかつ磁性体からなる複数の割型を備えた成形金
型を使用して製造される高分子弾性体材料からなる蛇腹
ホースの製造方法であつて、 着磁された磁性材料を含む高分子弾性体材料からなり、
かつ、前記他部を形成する成形材料を軸方向に流通可能
な凹部を備えて前記山部を形成するリング部材を、型開
き時の前記割型の一つに対して、磁力により吸着させて
セツトし、 型締め後、前記他部を形成するための高分子弾性体材料
からなる成形材料を前記成形金型内に注入して製造する
ことを特徴とする。<Means for Solving the Problems> In the method for manufacturing the bellows hose according to the present invention, the peak portion of the bellows portion is formed to have higher rigidity than other portions, the bellows hose outer peripheral surface can be formed, and a plurality of magnetic bodies are formed. A method of manufacturing a bellows hose made of a polymeric elastic material produced by using a molding die having a split mold, comprising a polymeric elastic material containing a magnetized magnetic material,
And, a ring member that is provided with a recess that allows the molding material that forms the other portion to flow in the axial direction and that forms the mountain portion is attracted by magnetic force to one of the split dies when the die is opened. After being set and clamped, a molding material made of a polymeric elastic material for forming the other portion is injected into the molding die for manufacturing.
本発明に係る蛇腹ホースの製造では、前記リング部材を
形成する高分子弾性体材料を、前記他部と同種材料とす
ることが望ましい。In the manufacture of the bellows hose according to the present invention, it is desirable that the polymeric elastic material forming the ring member be the same kind of material as the other portion.
〈発明の作用・効果〉 本発明の製造方法では、着磁された磁性材料を含む高分
子弾性体材料からなり、かつ、他部を形成する成形材料
を軸方向に流通可能な凹部を備えて山部を形成するリン
グ部材を、型開き時の割型の一つに対して、磁力により
吸着させてセツトし、型締め後、他部を形成するための
高分子弾性体材料からなる成形材料を成形金型内に注入
して製造するものである。<Operations and Effects of the Invention> In the manufacturing method of the present invention, the polymer elastic material containing a magnetized magnetic material is provided, and the molding material forming the other part is provided with a recess through which the molding material can flow in the axial direction. A molding material made of a high molecular weight elastic material for forming the mountain portion by forming a ring member which is attracted by magnetic force to one of the split molds when the mold is opened and set, and then the other part is formed after the mold is clamped. It is manufactured by injecting into a molding die.
すなわち、本発明の製造方法では、山部を形成するリン
グ部材が、着磁されており、所定の割型に対して、磁力
により吸着させてセツトすれば、型締め完了までリング
部材のずれを防止することができる。That is, in the manufacturing method of the present invention, the ring member forming the crest is magnetized, and if a predetermined split mold is attracted by magnetic force and set, the ring member is displaced until the mold clamping is completed. Can be prevented.
さらに、型締め後の他部を形成する成形材料を注入して
も、リング部材に所定の凹部が形成されていることか
ら、成形材料が凹部を経て円滑に流れ、成形不良を生じ
させない。Further, even if the molding material that forms the other part after mold clamping is injected, the molding material flows smoothly through the recess because the predetermined recess is formed in the ring member, and molding defects do not occur.
したがつて、本発明に係る蛇腹ホースの製造方法では、
山部を形成するリング部材を、ずれを防止して所定の割
型に簡単にセツトすることができ、また、成形材料の流
れも阻害しないことから、不良品の発生を抑えることが
でき、柔軟性と耐負圧性を共に満足させることができる
ような、蛇腹部の山部を高剛性とした高分子弾性体材料
からなる蛇腹ホースを、生産性を向上させて製造するこ
とができる。Therefore, in the method of manufacturing the bellows hose according to the present invention,
The ring member that forms the ridge can be easily set to a predetermined split mold by preventing misalignment, and because it does not impede the flow of molding material, it can suppress the occurrence of defective products and is flexible. It is possible to improve the productivity and manufacture a bellows hose made of a polymeric elastic material in which the peaks of the bellows have high rigidity, which can satisfy both the pressure resistance and the negative pressure resistance.
そしてまた、本発明の蛇腹ホースの製造方法において、
高剛性の蛇腹部の山部を形成するリング部材を、蛇腹部
の他部の高分子弾性体材料と同種材料で形成する場合に
は、他部の成形時において、他部とリング部材との溶融
接着若しくは加硫接着が可能となるため、別途、リング
部材に接着剤を塗布する必要が無くなり、一層、生産性
を向上させることができる。And also in the method of manufacturing the bellows hose of the present invention,
When the ring member forming the mountain portion of the high-rigidity bellows is formed of the same kind of material as the polymer elastic material of the other part of the bellows, the other part and the ring member are formed at the time of molding the other part. Since melt bonding or vulcanization bonding is possible, it is not necessary to separately apply an adhesive to the ring member, and the productivity can be further improved.
〈実施例〉 以下、本発明の実施例を図面に基づいて説明する。<Example> Hereinafter, an example of the present invention is described based on a drawing.
第１図に示す実施例で製造する蛇腹ホース１は、ゴム若
しくは熱可塑性エラストマー（TPE）からなる高分子弾
性体材料から、射出成形やトランスフアー成形等によ
り、蛇腹部２を備えて形成されている。The bellows hose 1 manufactured in the embodiment shown in FIG. 1 is made of a polymer elastic material made of rubber or thermoplastic elastomer (TPE) and provided with a bellows portion 2 by injection molding or transfer molding. There is.
そして、蛇腹部２の山部４は、円環状のリング部材５が
埋設されて、山部４以外の他部３より剛性を高くしてい
る。The ring-shaped ring member 5 is embedded in the mountain portion 4 of the bellows portion 2 so as to have higher rigidity than the other portions 3 other than the mountain portion 4.
他部３の材料としては、ブタジエン・アクリロニトリル
共重合体（NBR）、スチレン・ブタジエンゴム共重合体
（SBR）、ブチルゴム（IIR）、エチレン・プロピレン共
重合体（EPM）、エチレン・プロピレン・ジエン共重合
体（EPDM）、クロロプレンゴム（CR）等のゴム材料が例
示できる。Other parts 3 include butadiene / acrylonitrile copolymer (NBR), styrene / butadiene rubber copolymer (SBR), butyl rubber (IIR), ethylene / propylene copolymer (EPM), ethylene / propylene / diene copolymer. Examples of rubber materials include polymers (EPDM) and chloroprene rubber (CR).
さらに、他部３の材料としては、スチレン系（SBC）、
オレフイン系（TPO）、塩化ビニル系（TPVC）、ウレタ
ン系（TPU）、ポリアミド系（TPAE）、ポリエステル系
（TPEE）、若しくは、前記のSBC・TPO・TPVC・TPU・TPA
E・TPEE等に既述のNBR・SBR・IIR・EPM・EPDM・CR等の
ゴム材料のブレンド物、等のTPEが例示できる。Furthermore, as the material of the other part 3, styrene (SBC),
Olefin type (TPO), vinyl chloride type (TPVC), urethane type (TPU), polyamide type (TPAE), polyester type (TPEE), or the above SBC / TPO / TPVC / TPU / TPA
Examples of TPE such as E / TPEE and the like, which are the blends of rubber materials such as NBR, SBR, IIR, EPM, EPDM, CR, and the like, which have already been described.
また、リング部材５は、外径寸法を山部４の外径と一致
させ、内周面全周に凹部を設けて、内径寸法を山部４の
内径より大きくし、別途、射出成形・トランスフアー成
形等で成形しておく。Further, the ring member 5 has an outer diameter that matches the outer diameter of the crest portion 4, a recess is provided on the entire circumference of the inner peripheral surface, and the inner diameter dimension is made larger than the inner diameter of the crest portion 4 separately. It is molded by earth molding.
なお、内径寸法を山部４の内径より大きくする理由は、
他部３を成形する場合に、その成形材料を他の他部３等
に流通させることができるようにするためである。The reason for making the inner diameter dimension larger than the inner diameter of the mountain portion 4 is as follows.
This is because when the other portion 3 is molded, the molding material can be distributed to the other portion 3 or the like.
そして、リング部材５の材料は、他部３を成形する際
に、リング部材５に別途接着剤を塗布する必要が無く、
溶融接着若しくは加硫接着が可能となるように、他部３
と同種材料が望ましい。The material of the ring member 5 does not need to be separately coated with an adhesive when molding the other portion 3,
The other part 3 is used so that melt adhesion or vulcanization adhesion is possible.
The same material as is desirable.
そのため、他部３をゴム材料で形成する場合には、リン
グ部材５の材料として、他部３を形成する材料に磁性材
料（フエライト）を加えたものを利用する。なお、さら
に山部４の剛性を高めたい場合には、所望により、カー
ボンブラツクその他の無機充填剤や硫黄を増量させた
り、補強繊維を加えたりしても良い。Therefore, when the other portion 3 is formed of a rubber material, the material of the ring member 5 to which the magnetic material (ferrite) is added is used. If it is desired to further increase the rigidity of the mountain portion 4, carbon black or other inorganic filler or sulfur may be increased, or reinforcing fibers may be added, if desired.
また、他部３をTPEで形成する場合には、リング部材５
の材料として、既述のゴム材料の場合と同様に、他部３
を形成する材料に磁性材料を加えたものを利用する。な
お、さらに山部４の剛性を高めたい場合には、所望によ
り、無機充填剤を増量させたり、補強繊維を加えたりし
ても良い。When the other part 3 is made of TPE, the ring member 5
As the material of the other part, as in the case of the rubber material described above, the other part 3
A magnetic material is added to the material forming the. If it is desired to further increase the rigidity of the mountain portion 4, the amount of the inorganic filler may be increased or the reinforcing fiber may be added, if desired.
そして、その磁性材料の配合量は、例えば、他部３をCR
から形成する場合、リング部材５は、CR100重量部に対
して磁性材料粉を250〜1000重量部（望ましくは300〜60
0重量部）とし、さらに、可塑剤の配合量を磁性材料粉
に対応して、重量比で1/35〜1/10とする。この場合、磁
性材料粉が250重量部未満では、着磁させても、リング
部材５を成形金型６にセツトする際の吸着力が小さくな
つて、金型６に対して位置決めを十分果せなくなるため
である。ちなみに、必要な吸着力、すなわち、必要な磁
気特性のエネルギー積は、250GOe（ガウス・エルステツ
ド）以上であり、磁性材料が250重量部未満であると、
その値未満となつてしまう。また、磁性材料粉が1000重
量部を越えると剛性が高くなり過ぎて、ホースとしての
機能である伸びの性質を損なうため、好ましくないから
である。なお、磁性材料としては、六方晶体の結晶構造
を持ち、異方性磁石に適しているストロンチウムフエラ
イト、バリウムフエライト等を挙げることができる。ま
た、可塑剤としては、メチルアセチルシノレート、トリ
フエニルホスフエート、等のエステル系可塑剤及び植物
油、鉱物油等を使用する。The amount of the magnetic material blended is, for example, CR in the other part 3.
When the ring member 5 is formed of 250 to 1000 parts by weight of the magnetic material powder with respect to 100 parts by weight of CR (preferably 300 to 60).
(0 part by weight), and the amount of the plasticizer is 1/35 to 1/10 by weight corresponding to the magnetic material powder. In this case, if the magnetic material powder is less than 250 parts by weight, even if it is magnetized, the attraction force when the ring member 5 is set in the molding die 6 becomes small, and the positioning with respect to the die 6 can be sufficiently performed. Because it will disappear. By the way, if the required attraction force, that is, the energy product of the required magnetic properties is 250 GOe (Gauss-Elsted) or more and the magnetic material is less than 250 parts by weight,
It will be less than that value. Further, if the magnetic material powder exceeds 1000 parts by weight, the rigidity becomes too high and the elongation property which is the function of the hose is impaired, which is not preferable. Examples of magnetic materials include strontium ferrite and barium ferrite, which have a hexagonal crystal structure and are suitable for anisotropic magnets. As the plasticizer, ester-based plasticizers such as methylacetyl cinnolate and triphenyl phosphate, and vegetable oil, mineral oil and the like are used.
また、成形したリング材５に対して所定の接着剤を塗布
して他部３を成形する場合には、リング部材５は、他部
３と同種材料でなくとも良いことから、リング部材５の
材料として、ABS樹脂やポリアセタール等の硬質合成樹
脂材料に磁性材料をブレンドしたものを利用しても良
い。In addition, when a predetermined adhesive is applied to the molded ring material 5 to mold the other portion 3, the ring member 5 does not have to be made of the same material as the other portion 3. As the material, a material obtained by blending a magnetic material with a hard synthetic resin material such as ABS resin or polyacetal may be used.
つぎに、実施例の蛇腹ホース１の製造方法について説明
すると、別途成形しておいたリング部材５を、他部３を
成形する成形金型６にセツトする（第２図参照）。Next, a method of manufacturing the bellows hose 1 of the embodiment will be described. Separately molded ring member 5 is set in a molding die 6 for molding the other portion 3 (see FIG. 2).
なお、リング部材５は、予め着磁器により着磁させてお
く。この着磁の態様は、NS着磁（一般着磁）・ピツチ着
磁（多極着磁）のいずれでも良いが、ピツチ着磁が大き
な磁束密度を表面方向に得られるため、望ましい。ま
た、着磁範囲は、リング部材５の外周面全面でも良い
が、所要部位のみでも良い。The ring member 5 is magnetized in advance by a magnetizer. The mode of this magnetization may be either NS magnetization (general magnetization) or pitch magnetization (multi-pole magnetization), but pitch magnetization is desirable because a large magnetic flux density can be obtained in the surface direction. Further, the magnetizing range may be the entire outer peripheral surface of the ring member 5, or may be only the required portion.
また、成形金型６は、蛇腹ホース１の外周面を成形可能
な型面を有した鉄等の磁性体からなる割型７・８を備え
ている。また、構成している各部がスライドして縮径可
能となるアルミニウム等の非磁性体からなる中子９を備
えている。そして、各リング部材５を中子９に外装させ
るとともに、割型７・８の一方の所定のセツト位置にセ
ツトする。Further, the molding die 6 is provided with split molds 7 and 8 made of a magnetic material such as iron having a mold surface capable of molding the outer peripheral surface of the bellows hose 1. Further, each component is provided with a core 9 made of a non-magnetic material such as aluminum whose diameter can be reduced by sliding. Then, each ring member 5 is exteriorly mounted on the core 9 and set in one of the predetermined set positions of the split dies 7 and 8.
この時、リング部材５が磁力を有しているため、割型７
・８の型面の所定位置にずれること無く的確に吸着され
て、セツト作業が容易となる。また、中子９が非磁性体
のため、セツト途中でリング部材５が中子９側に吸着す
ることも無い。At this time, since the ring member 5 has a magnetic force, the split mold 7
・ Suction work is facilitated because it is accurately adsorbed without deviating to a predetermined position on the mold surface of 8. Further, since the core 9 is a non-magnetic material, the ring member 5 will not be attracted to the core 9 side during the setting.
そして、型締め後、キヤビテイ（図符号省略）内に成形
材料を注入して他部３を成形する。なお、成形時には、
成形材料の熱により、リング部材５の磁力が低下する
が、型締め時に割型７・８の型面にリング部材５の外周
面が挟持されることとなるため、成形材料の注入圧でリ
ング部材５が移動する虞れは無い。また、成形材料も、
リング部材５の内径寸法が、山部４の内径より大きく設
定されているため、円滑に流れることとなる。After the mold is clamped, the molding material is injected into the cavity (not shown) to mold the other portion 3. In addition, at the time of molding,
Although the magnetic force of the ring member 5 is reduced by the heat of the molding material, the outer peripheral surface of the ring member 5 is clamped by the mold surfaces of the split molds 7 and 8 during mold clamping, so the ring is pressed by the molding material injection pressure. There is no risk of the member 5 moving. Also, the molding material,
Since the inner diameter of the ring member 5 is set to be larger than the inner diameter of the mountain portion 4, the ring member 5 smoothly flows.
その後、型開きさせるとともに、中子９を縮径させて、
離型させれば、所定の蛇腹ホース１を得ることができ
る。After that, the mold is opened and the diameter of the core 9 is reduced,
By releasing the mold, a predetermined bellows hose 1 can be obtained.
このように製造した蛇腹ホース１では、蛇腹部２の山部
４にリング部材５が埋設されて、その山部４が他部３よ
り高剛性となるため、耐負圧性に対して十分な性能を発
揮することができる。一方、蛇腹部２の山部４以外の他
部３が、その山部４より低い剛性となつて、柔軟性に対
して、十分な性能を維持することができる。また、この
蛇腹ホース１では、肉厚を変更しなくとも良いことか
ら、軽量化を妨げることが無い。In the bellows hose 1 manufactured as described above, the ring member 5 is embedded in the peak portion 4 of the bellows portion 2, and the peak portion 4 has higher rigidity than the other portion 3, so that sufficient performance for negative pressure resistance is obtained. Can be demonstrated. On the other hand, since the other portion 3 of the bellows portion 2 other than the mountain portion 4 has lower rigidity than the mountain portion 4, sufficient performance can be maintained with respect to flexibility. In addition, since the bellows hose 1 does not need to change the wall thickness, it does not hinder the weight reduction.
そして、実施例の製造方法では、山部４を形成するリン
グ部材５が磁性材料を含む高分子弾性体材料から構成さ
れており、予めリング部材５を形成した後に、そのリン
グ部材５に磁力を有するように着磁させ、その着磁した
リング部材５を、他部３を成形する成形金型６の割型７
・８の一つに対して、吸着させてセツトすることがで
き、成形時のリング部材５のセツトを容易に行なうこと
ができるため、蛇腹ホースの生産性を向上させることが
でき、既述の発明の作用・効果で述べたと同様な効果を
奏する。Further, in the manufacturing method of the embodiment, the ring member 5 forming the mountain portion 4 is made of a polymeric elastic material containing a magnetic material, and after the ring member 5 is formed in advance, a magnetic force is applied to the ring member 5. A magnet 7 is magnetized to have the magnetized ring member 5, and a split mold 7 of a molding die 6 for molding the other portion 3 is formed.
.It is possible to set the ring member 5 by adsorbing it to one of 8 and easily setting the ring member 5 at the time of molding, so that it is possible to improve the productivity of the bellows hose. The same effect as described in the operation and effect of the invention is obtained.
なお、実施例では、リング部材５として完全な円環状の
ものを例示したが、他部３の成形時に、成形材料がリン
グ部材５の軸方向に容易に流れて他の他部３に流れれば
良いため、第３図に示すリング部材51のような、外周に
部分的に凹部51aを設けたものや、第４図に示すリング
部材52のような、内周に部分的に凹部52aを設けたもの
や、さらに、第５図に示すリング部材53のような、貫通
孔のような凹部53aを設けたもの等を利用することがで
きる。In the embodiment, the ring member 5 has a perfect annular shape, but when molding the other portion 3, the molding material easily flows in the axial direction of the ring member 5 and flows into the other portion 3. For this reason, the ring member 51 shown in FIG. 3 is provided with a partially recessed portion 51a on its outer circumference, or the ring member 52 shown in FIG. 4 is provided with a partially recessed portion 52a on its inner circumference. It is possible to use those provided, or those provided with a recess 53a such as a through hole, such as the ring member 53 shown in FIG.
また、リング部材５は、一体物でなくとも、周方向に二
分割若しくは三分割等の複数に分割されていても良い。
そして、このように分割したリング部材５では、割型７
や割型８へのセツトが一層容易になる。Moreover, the ring member 5 may be divided into a plurality of parts such as two or three parts in the circumferential direction, instead of being a single piece.
In the ring member 5 divided in this way, the split mold 7
The setting to the split mold 8 becomes easier.
さらに、実施例では、他部３の形成に射出若しくはトラ
ンスフアー成形を利用する場合を例示したが、他部３を
ブロー成形を利用して形成しても良く、その場合には、
成形金型６のような中子９が不要となる。Furthermore, in the embodiment, the case where injection or transfer molding is used for forming the other portion 3 is illustrated, but the other portion 3 may be formed by using blow molding. In that case,
The core 9 such as the molding die 6 becomes unnecessary.
第１図は実施例で製造する蛇腹ホースの部分断面図、 第２図は同実施例の蛇腹ホースの成形中の断面図、 第３図は他の実施例に使用するリング部材を示す図、 第４図はさらに他の実施例に使用するリング部材を示す
図、 第５図はさらに他の実施例に使用するリング部材を示す
図である。 １……蛇腹ホース、２……蛇腹部、３……他部、４……
山部、５……リング部材、６……成形金型、７・８……
割型。FIG. 1 is a partial cross-sectional view of a bellows hose manufactured in an embodiment, FIG. 2 is a cross-sectional view of a bellows hose of the same embodiment during molding, and FIG. 3 is a view showing a ring member used in another embodiment, FIG. 4 is a view showing a ring member used in still another embodiment, and FIG. 5 is a view showing a ring member used in still another embodiment. 1 ... Bellows hose, 2 ... Bellows, 3 ... Others, 4 ...
Mountain part, 5 ... Ring member, 6 ... Mold, 7.8 ...
Split type.
フロントページの続き (56)参考文献 実開 昭58−82578（ＪＰ，Ｕ) 実開 昭58−99578（ＪＰ，Ｕ)Continuation of the front page (56) References Actually open Sho-58-82578 (JP, U) Actual-open Sho-58-99578 (JP, U)
Claims (2)
れ、蛇腹ホース外周面を成形可能でかつ磁性体からなる
複数の割型を備えた成形金型を使用して製造される高分
子弾性体材料からなる蛇腹ホースの製造方法であつて、 着磁された磁性材料を含む高分子弾性体材料からなり、
かつ、前記他部を形成する成形材料を軸方向に流通可能
な凹部を備えて前記山部を形成するリング部材を、型開
き時の前記割型の一つに対して、磁力により吸着させて
セツトし、 型締め後、前記他部を形成するための高分子弾性体材料
からなる成形材料を前記成形金型内に注入して製造する
ことを特徴とする蛇腹ホースの製造方法。1. A bellows ridge is formed with higher rigidity than other portions, and is manufactured by using a molding die having a plurality of split dies made of a magnetic material and capable of molding an outer peripheral surface of a bellows hose. A method of manufacturing a bellows hose made of a polymer elastic material, comprising a polymer elastic material containing a magnetized magnetic material,
And, a ring member that is provided with a recess that allows the molding material that forms the other portion to flow in the axial direction and that forms the mountain portion is attracted by magnetic force to one of the split dies when the die is opened. A method of manufacturing a bellows hose, comprising: setting and clamping, and then molding a molding material made of a polymeric elastic material for forming the other portion into the molding die.
料が、前記他部と同種材料としていることを特徴とする
請求項１記載の蛇腹ホースの製造方法。2. The method of manufacturing a bellows hose according to claim 1, wherein the polymer elastic material forming the ring member is the same kind of material as the other portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2296289A JPH0796909B2 (en) | 1990-10-31 | 1990-10-31 | Manufacturing method of bellows hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2296289A JPH0796909B2 (en) | 1990-10-31 | 1990-10-31 | Manufacturing method of bellows hose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04171386A JPH04171386A (en) | 1992-06-18 |
| JPH0796909B2 true JPH0796909B2 (en) | 1995-10-18 |
Family
ID=17831634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2296289A Expired - Lifetime JPH0796909B2 (en) | 1990-10-31 | 1990-10-31 | Manufacturing method of bellows hose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0796909B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3049324A1 (en) * | 2016-03-25 | 2017-09-29 | Peugeot Citroen Automobiles Sa | SEAL BELL AND ACTUATION FORK COMPRISING MAGNETS FOR A GEARBOX VALIDATION METHOD |
| JP6951261B2 (en) * | 2018-01-12 | 2021-10-20 | 株式会社Ｓｕｂａｒｕ | Piping fixing structure and piping fixing method |
| CZ2019388A3 (en) * | 2019-06-19 | 2020-03-11 | Trelleborg Bohemia, a.s. | Protective element |
| CN110715102B (en) * | 2019-09-12 | 2021-08-06 | 江苏永丰电器仪表有限公司 | A pneumatic valve positioner |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5882578U (en) * | 1981-11-30 | 1983-06-04 | 東洋ゴム工業株式会社 | corrugated flexible tube |
| JPS5899578U (en) * | 1981-12-26 | 1983-07-06 | 住友電気工業株式会社 | corrugated plastic tube |
-
1990
- 1990-10-31 JP JP2296289A patent/JPH0796909B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04171386A (en) | 1992-06-18 |
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