JPH02121828A - Bulging jig for resin hose - Google Patents
Bulging jig for resin hoseInfo
- Publication number
- JPH02121828A JPH02121828A JP63274769A JP27476988A JPH02121828A JP H02121828 A JPH02121828 A JP H02121828A JP 63274769 A JP63274769 A JP 63274769A JP 27476988 A JP27476988 A JP 27476988A JP H02121828 A JPH02121828 A JP H02121828A
- Authority
- JP
- Japan
- Prior art keywords
- hose
- resin hose
- mold
- cavity
- peripheral wall
- 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.)
- Pending
Links
- 229920005989 resin Polymers 0.000 title claims abstract description 53
- 239000011347 resin Substances 0.000 title claims abstract description 53
- 230000002093 peripheral effect Effects 0.000 claims abstract description 19
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 230000000452 restraining effect Effects 0.000 claims description 4
- 238000000465 moulding Methods 0.000 abstract description 4
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 11
- 238000001816 cooling Methods 0.000 description 3
- 238000010273 cold forging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/22—Corrugating
- B29C53/30—Corrugating of tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
- B29C57/02—Belling or enlarging, e.g. combined with forming a groove
- B29C57/04—Belling or enlarging, e.g. combined with forming a groove using mechanical means
- B29C57/06—Belling or enlarging, e.g. combined with forming a groove using mechanical means elastically deformable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
- B29C57/02—Belling or enlarging, e.g. combined with forming a groove
- B29C57/08—Belling or enlarging, e.g. combined with forming a groove using pressure difference
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/826—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps without using a separate pressure application tool, e.g. the own weight of the parts to be joined
- B29C66/8266—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps without using a separate pressure application tool, e.g. the own weight of the parts to be joined using fluid pressure directly acting on the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/565—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits involving interference fits, e.g. force-fits or press-fits
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は、熱可塑性樹脂製のホース（この明細書で「
樹脂ホース」という、）をバルジ加工するための治具に
関する。[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a hose made of thermoplastic resin (hereinafter referred to as "
This invention relates to a jig for bulging a resin hose.
軽量化等の見地からゴムホース５を樹脂ホースｌで置換
する場合がある（第３図）、この場合、ゴムホース５と
樹脂ホース１どの連結部において、気密性並びに抜止め
性を確保するため、樹脂ホース１の周面へ周方向のリブ
３を設けることが好ましい、樹脂ホース１も一般的に押
出成形されるので、かかるリブ３は後加工により形成さ
れる。In some cases, the rubber hose 5 is replaced with a resin hose 1 from the viewpoint of weight reduction, etc. (Fig. 3). It is preferable to provide circumferential ribs 3 on the circumferential surface of the hose 1. Since the resin hose 1 is also generally extruded, the ribs 3 are formed by post-processing.
なお、図中の符号７は締結具である。In addition, the code|symbol 7 in a figure is a fastener.
〈従来の技術〉
従来、樹脂ホース１へ上記リブを形成するのには、第４
図に示すバルジ加工用治具１０を用いていた。<Prior art> Conventionally, in order to form the above-mentioned ribs on the resin hose 1, a fourth
A bulge processing jig 10 shown in the figure was used.
このバルジ加工用治具１０は、バルジ成形型１１、スト
ッパ１５及び加圧装置１７から成る。This bulge processing jig 10 includes a bulge mold 11, a stopper 15, and a pressure device 17.
バルジ成形型１１の割面には、樹脂ホース１の周壁を拘
束する部分１２とキャビティ１３とが形成されている。A portion 12 for restraining the peripheral wall of the resin hose 1 and a cavity 13 are formed in the cut surface of the bulge mold 11.
バルジ成形型１１は図示しないヒータで昇温される。そ
して、樹脂ホース１の一端をこのバルジ成形型１１ヘセ
ツトして、その端部をストッパ１５で固定する。そして
、樹脂ホース１がバルジ成形型１１の熱で型化したら、
樹脂ホース１の他端を加圧装置１７で把み、樹脂ホース
１が圧縮される方向の圧力を加える。すると、樹脂ホー
ス１の周壁はキャビティ１３に沿って膨れる。そして、
型開きをして樹脂ホース１を放冷しリブ３の形状を固定
する。The temperature of the bulge mold 11 is raised by a heater (not shown). Then, one end of the resin hose 1 is set into this bulge mold 11, and the end portion is fixed with a stopper 15. Then, once the resin hose 1 is molded by the heat of the bulge mold 11,
The other end of the resin hose 1 is gripped by a pressure device 17, and pressure is applied in a direction to compress the resin hose 1. Then, the peripheral wall of the resin hose 1 swells along the cavity 13. and,
The mold is opened, the resin hose 1 is left to cool, and the shape of the ribs 3 is fixed.
また、バルジ成形型１１を加熱せずに、いわゆる冷間鍛
造的にリブ３を形成する場合もある。Furthermore, the ribs 3 may be formed by so-called cold forging without heating the bulge mold 11.
〈発明が解決しようとする課題〉
しかしながら、上記バルジ加工用治具１０でリブ３を形
成するには、下記の課題があった。<Problems to be Solved by the Invention> However, forming the ribs 3 with the bulge processing jig 10 has the following problems.
バルジ成形型１１を加熱する場合には、樹脂ホース１に
おいて塑性変形させるべき部分（キャビティ１３に対応
する部分）と割面との間へ大きなキャビティ空間が存在
するので、該部分を型化するには、他の部分（拘束部分
１２に対応する部分）からの熱伝達を待つしかない、従
って、熱効率が悪く、型化に時間がかかる。When heating the bulge mold 11, there is a large cavity space between the part of the resin hose 1 to be plastically deformed (the part corresponding to the cavity 13) and the cut surface, so it is difficult to mold this part. There is no choice but to wait for heat transfer from other parts (parts corresponding to the restrained part 12), and therefore, thermal efficiency is poor and molding takes time.
バルジ成形型１１を昇温させないとき、即ち、冷間鍛造
的にリブ３を形成するときには、樹脂ホース１の周壁を
キャビティ１３へ正確に沿わせることが困難である。従
って、リブ３の設計自由度が低下する。When the temperature of the bulge mold 11 is not raised, that is, when the ribs 3 are formed by cold forging, it is difficult to accurately align the peripheral wall of the resin hose 1 with the cavity 13. Therefore, the degree of freedom in designing the rib 3 is reduced.
く課題を解決するための手段〉
この発明は、上記課題を解決することを目的としてなさ
れたバルジ加工用治具である。そしてその構成は、樹脂
ホースの周壁を拘束する部分と、キャビティ部分とを有
する割面を備えたバルジ成形型と、該バルジ成形型に固
定された樹脂ホースへ、加圧流体を送給可能なシリンダ
状の加圧装置と、該加圧装置へピストン状態に内装され
、加圧装置から突出して樹脂ホースへ挿入され、少なく
ともキャビティ部分に対応する樹脂ホースの周壁を加熱
するヒータとを備えてなることを特徴とする。Means for Solving the Problems> The present invention is a bulge processing jig that has been made for the purpose of solving the above problems. The structure includes a bulge mold with a split surface having a part that restrains the peripheral wall of the resin hose and a cavity part, and a pressurized fluid that can be supplied to the resin hose fixed to the bulge mold. It is equipped with a cylindrical pressurizing device, and a heater that is installed in the pressurizing device in the form of a piston, protrudes from the pressurizing device and is inserted into the resin hose, and heats the peripheral wall of the resin hose corresponding to at least the cavity portion. It is characterized by
〈実施例〉
以下、この発明を実施例に基づいて更に詳細に説明する
。<Examples> Hereinafter, the present invention will be described in more detail based on Examples.
なお、従来例で説明した部材と同一の部材には同一の図
符号を付して、その説明を部分的に省略する。Note that the same members as those described in the conventional example are given the same reference numerals, and their explanations will be partially omitted.
実施例のバルジ加工用治具２０は、バルジ成形型２１、
加圧装置３０及びヒータ４５を備えて成る。The bulge processing jig 20 of the embodiment includes a bulge mold 21,
It includes a pressurizing device 30 and a heater 45.
バルジ成形型２１は、上型２１ａと下型２１ｂからなり
、下型２１ｂは基台２６へ固定されている。バルジ成形
型２１の割面には、樹脂ホース１の周壁を拘束する部分
２２と、断面略半円形で、周方向へ連続したキャビティ
２３が形成されている。拘束部分２２には、樹脂ホース
１を保護するためのゴム層２４がコーティングされてい
る。The bulge mold 21 includes an upper mold 21a and a lower mold 21b, and the lower mold 21b is fixed to a base 26. A portion 22 for restraining the peripheral wall of the resin hose 1 and a cavity 23 having a substantially semicircular cross section and continuous in the circumferential direction are formed in the cut surface of the bulge mold 21. The restraining portion 22 is coated with a rubber layer 24 for protecting the resin hose 1.
図中の符号２５は、バルジ成形型２１を冷却するための
水路である。Reference numeral 25 in the figure is a water channel for cooling the bulge mold 21.
加圧装置３０とヒータ４５とはそれぞれシリンダとピス
トンの関係にある。The pressurizing device 30 and the heater 45 are in a cylinder-piston relationship, respectively.
加圧装置３０は、本体部３１と圧縮空気送給部３７とか
ら構成される。The pressurizing device 30 includes a main body portion 31 and a compressed air supply portion 37.
本体部３１はシリンダ状であり、基台２６においてバル
ジ成形型２１の軸線仮想延長線上へ移動可能に配設され
ている０本体部３１の左端開口部３３の周縁は樹脂ホー
ス１の端部と密接する凹部３５とされている。The main body part 31 has a cylindrical shape, and the periphery of the left end opening 33 of the main body part 31, which is disposed on the base 26 so as to be movable on the imaginary extension of the axis of the bulge mold 21, is connected to the end of the resin hose 1. The recesses 35 are in close contact with each other.
圧縮空気送給部３７は空気配管３９、バルブ４１及び図
示しない圧縮空気源から構成される。圧縮空気源には一
般的なコンプレッサーを用いる。The compressed air supply unit 37 includes an air pipe 39, a valve 41, and a compressed air source (not shown). A general compressor is used as the compressed air source.
そして空気配管３９は、本体部３１の先端に穿設された
空気孔２７へ連通している。これにより、本体部３１内
へ圧縮空気が送給されることとなるヒータ４５は小径な
ヒータ本体４７と大径部分５３とからなり、加圧装置３
０の本体部３１ヘビストン状に内装されている０図中の
符号５７は大径部分５３の右端へ固定されたシャフトで
あり、油圧シリンダ６１へ連結されている。この油圧シ
リンダ６１は制御装置６３で調弁される。なお、制御装
置６３にはＣＰＵが通用され、上記バルブ４１、油圧シ
リンダ６１、及び後述のスイッチ６５を時間的に制御す
る。The air pipe 39 communicates with an air hole 27 formed at the tip of the main body portion 31. As a result, the heater 45 through which compressed air is fed into the main body 31 is composed of a small diameter heater main body 47 and a large diameter portion 53, and the pressurizing device 3
The reference numeral 57 in the drawing, which is installed inside the main body part 31 in a heavy stone shape, is a shaft fixed to the right end of the large diameter portion 53, and is connected to a hydraulic cylinder 61. This hydraulic cylinder 61 is regulated by a control device 63. Note that the control device 63 uses a CPU, and temporally controls the valve 41, the hydraulic cylinder 61, and a switch 65, which will be described later.
ヒータ本体４７は樹脂ホース１へ挿入可能な径を有する
。実施例では、両者のクリアランスとして０ 、２＋ｕ
＋＋取った（略滑り嵌めの状態である。）。The heater body 47 has a diameter that allows it to be inserted into the resin hose 1. In the example, the clearance between the two is 0, 2+u
++ (It is almost a slip fit.)
ヒータ本体４７の内部には電気発熱体４９が内設さ−れ
ており、ヒータ本体４７は伝熱効率のよい金属材料で形
成されている。また、ヒータ本体４７の元部側（大径部
分５３との連結側）周面は遮熱層５１ （シリコーンゴ
ム族）で被覆されている。An electric heating element 49 is installed inside the heater body 47, and the heater body 47 is made of a metal material with good heat transfer efficiency. Further, the peripheral surface of the base portion side (the side connected to the large diameter portion 53) of the heater main body 47 is covered with a heat shielding layer 51 (of silicone rubber group).
これにより、ヒータ本体４フを樹脂ホース２１へ挿入し
たときに、樹脂ホース１の先＠（キャビティ２３に対応
する部分以外の部分）は型化されなくなる。電気発熱体
４９は大径部分５３．シャフト５７を通じて、スイッチ
６３及び電源へ結線されている。As a result, when the heater main body 4 is inserted into the resin hose 21, the tip of the resin hose 1 (a portion other than the portion corresponding to the cavity 23) is not molded. The electric heating element 49 has a large diameter portion 53. Through the shaft 57, it is connected to a switch 63 and a power source.
大径部分５３には０リング５５が装着され、空気孔２７
より送給された圧縮空気のシールを図っている。An O ring 55 is attached to the large diameter portion 53, and the air hole 27
The aim is to seal the compressed air supplied by the
次に、この考案のバルジ加工用治具２０の作用について
説明をする。Next, the operation of the bulge processing jig 20 of this invention will be explained.
■まず、直管状の樹脂ホース１の一端をバルジ成形型２
１ヘセツトする。このとき、冷却水は循環状態にあり、
バルジ成形型２１は冷却されている。また、樹脂ホース
１の他端は図示しないキャップで閉塞されている。■First, place one end of the straight resin hose 1 into the bulge mold 2.
Set to 1. At this time, the cooling water is in a circulating state,
The bulge mold 21 has been cooled. Further, the other end of the resin hose 1 is closed with a cap (not shown).
■次に、加圧装置３０の本体部３１を、その凹部３５が
樹脂ホース１の先端へ密接するように、バルジ成形型２
１へ近接させる。そして、制御装置６３により油圧シリ
ンダ６１を作動させて、ヒータ本体４７を樹脂ホース１
へ挿入する。挿入が終了したら、制御装置６３によりス
イッチ６５をオンとして、ヒータ本体４７を発熱させる
。遮熱層５１に覆われた部分では熱が樹脂ホース１に及
ばないので、樹脂ホース１はキャビティ２３に対応した
部分の周壁のみが型化されることとなる。■Next, insert the main body 31 of the pressurizing device 30 into the bulge mold 2 so that the recess 35 is in close contact with the tip of the resin hose 1.
Close to 1. Then, the control device 63 operates the hydraulic cylinder 61 to connect the heater body 47 to the resin hose 1.
Insert into. When the insertion is completed, the control device 63 turns on the switch 65 to cause the heater body 47 to generate heat. Since heat does not reach the resin hose 1 in the portion covered by the heat shielding layer 51, only the peripheral wall of the resin hose 1 in the portion corresponding to the cavity 23 is molded.
そして、樹脂ホース１の型化が終了したら、制御装置６
３により油圧シリンダ６１を作動させて、ヒータ本体４
７を加圧装置３０の本体部３１内へ引っ込める。After the molding of the resin hose 1 is completed, the control device 6
3 actuates the hydraulic cylinder 61, and the heater body 4
7 into the main body 31 of the pressurizing device 30.
０次に、制御装置６３によりパルプ４１を開いて、空気
孔２７から圧縮空気を開口部３３へ送給する。開口部３
３に対して図示右側の空間（本体部３１の内部空間）は
Ｏリング５５により密閉され、一方、図示左側の空間（
樹脂ホース１の内径空間）は図示しないキャップで閉塞
されているので、当該圧縮空気は、型化された樹脂ホー
ス１の周壁をキャビティ２３へ沿うように膨らませる。Next, the pulp 41 is opened by the control device 63 and compressed air is fed from the air hole 27 to the opening 33 . Opening 3
3, the space on the right side in the figure (the internal space of the main body part 31) is sealed by an O-ring 55, while the space on the left side in the figure (
Since the inner diameter space of the resin hose 1 is closed by a cap (not shown), the compressed air inflates the peripheral wall of the molded resin hose 1 along the cavity 23.
キャビティ２３の局面は冷却されているので、当該膨う
んだ部分はすぐに固化することとなる。この膨らんだ部
分がリブ３となる。Since the surface of the cavity 23 is cooled, the swollen portion will solidify immediately. This swollen portion becomes the rib 3.
その後、制御装置６３によりバルブ４１を閉じ、加圧装
置３０の本体部３１を樹脂ホース１から離隔するととも
に、バルジ成形型２１を開いて１つのサイクルが終了す
る。Thereafter, the control device 63 closes the valve 41, separates the main body 31 of the pressurizing device 30 from the resin hose 1, and opens the bulge mold 21, completing one cycle.
上記実施例のバルジ加工用治具２０には、下記の変形態
様が考えられる。勿論、この発明がこれらに限定される
ものではない。The following modifications are possible for the bulge processing jig 20 of the above embodiment. Of course, the present invention is not limited to these.
（１）バルジ成形型２１の冷却方法を空冷とすることが
できる。(1) The cooling method of the bulge mold 21 can be air cooling.
（２）加圧装置３０において、空気の代わりに温水等を
加圧流体とすることができる。また、空気孔２７を開口
部３３以外（例えば、大径部分５３が収納されている部
分）へ連通させることができる。(2) In the pressurizing device 30, hot water or the like can be used as the pressurized fluid instead of air. Further, the air hole 27 can be communicated with a part other than the opening part 33 (for example, a part where the large diameter part 53 is housed).
（３）ヒータ４５を加圧装置３０の本体部３１に対して
出し入れする装置は、既述の油圧シリンダ６１に限定さ
れない。エアシリンダ、モータ等の一般的な駆動装置を
適用することができる。(3) The device for moving the heater 45 in and out of the main body 31 of the pressurizing device 30 is not limited to the hydraulic cylinder 61 described above. General drive devices such as air cylinders and motors can be applied.
〈発明の作用・効果〉
以上説明したように、この発明のバルジ加工用治具は、
樹脂ホースの周壁を拘束する部分と、キャビティ部分と
を有する割面を備えたバルジ成形型と、該バルジ成形型
に固定された樹脂ホースへ、加圧流体を洋給可能なシリ
ンダ状の加圧装置と、該加圧装置へピストン状態に内装
され、加圧装置から突出して樹脂ホースへ挿入され、少
なくともキャビティ部分に対応する樹脂ホースの周壁を
加熱するヒータとを備えた構成である。<Operations and Effects of the Invention> As explained above, the bulge processing jig of the present invention has the following effects:
A bulge mold with a split surface having a part that restrains the peripheral wall of a resin hose and a cavity part, and a cylindrical pressurizer that can supply pressurized fluid to the resin hose fixed to the bulge mold. The apparatus includes a heater that is installed in the pressurizing device in the form of a piston, protrudes from the pressurizing device and is inserted into the resin hose, and heats the peripheral wall of the resin hose corresponding to at least the cavity portion.
かかる構成のバルジ加工用治具によれば、バルジ成形型
にセットされた樹脂ホースヘヒータを挿入し、その周壁
゛において必要な部分を直接加熱して当該部分を型化す
ることができる。ここにおいて、ヒータと樹脂ホースと
のクリアランスを可及的に小ざくすることで、熱効率を
向上させ、周壁の型化に要する時間を短縮することがで
きる。According to the bulge processing jig having such a structure, a heater can be inserted into the resin hose set in the bulge mold, and a necessary portion of the peripheral wall thereof can be directly heated to form the mold. Here, by making the clearance between the heater and the resin hose as small as possible, thermal efficiency can be improved and the time required for shaping the peripheral wall can be shortened.
その後、圧縮流体を樹脂ホース内へ送給すると、ヒータ
により型化された部分が、バルジ成形型のキャビティへ
沿うように膨らむ、加圧流体はフレキシブルであり、ど
のような凹凸部でも均等に加圧することができる。従っ
て、キャビティを自由に設計できることとなり、もって
樹脂ホースにおけるリブの設計自由度が向上する。After that, when compressed fluid is fed into the resin hose, the part molded by the heater expands along the cavity of the bulge mold.The pressurized fluid is flexible and can be applied evenly to any uneven surface. can be pressed. Therefore, the cavity can be designed freely, thereby improving the degree of freedom in designing the ribs in the resin hose.
第１図はこの発明の実施例のバルジ加工用治具２０の断
面図（樹脂ホース１を型化する工程を示す、）、
第２図は同樹脂ホース１の周壁をバルジする工程を示す
バルジ加工用治具２０の断面図、第３図は樹脂ホース１
とゴムホース５との連結を示す断面図、
第４図は従来例のバルジ加工用治具１０を示す断面図。
１・・・樹脂ホース、
１０．２０・・・バルジ加工用治具、
１１．２１・・・バルジ成形型、
１２．２２・・・拘束部分、
１３．２３・・・キャビテ仁
３０・・・加圧装置、
４５…ヒータ、
４７・・・ヒータ本体。
特 許 出 願
人
豊田合成株式会社
醸FIG. 1 is a cross-sectional view of a bulging jig 20 according to an embodiment of the present invention (showing the step of molding the resin hose 1), and FIG. 2 is a bulge showing the step of bulging the peripheral wall of the resin hose 1. A sectional view of the processing jig 20, FIG. 3 shows the resin hose 1
FIG. 4 is a sectional view showing a conventional bulging jig 10. FIG. DESCRIPTION OF SYMBOLS 1...Resin hose, 10.20...Bulge processing jig, 11.21...Bulge mold, 12.22...Restriction part, 13.23...Cavity groove 30... Pressurizing device, 45... Heater, 47... Heater main body. Patent applicant Toyoda Gosei Co., Ltd.
Claims (1)
を有する割面を備えたバルジ成形型と、該バルジ成形型
に固定された前記樹脂ホースへ、加圧流体を送給可能な
シリンダ状の加圧装置と該加圧装置へピストン状態に内
装され、前記加圧装置から突出して前記樹脂ホースへ挿
入され、少なくとも前記キャビティ部分に対応する前記
樹脂ホースの周壁を加熱するヒータと を備えてなることを特徴とする樹脂ホースのバルジ加工
用治具。[Claims] A bulge mold having a split surface having a portion for restraining a peripheral wall of a resin hose and a cavity portion, and supplying pressurized fluid to the resin hose fixed to the bulge mold. a cylindrical pressurizing device; and a heater installed in the pressurizing device in the form of a piston, protruding from the pressurizing device and inserted into the resin hose, and heating a peripheral wall of the resin hose corresponding to at least the cavity portion. A jig for bulging a resin hose, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63274769A JPH02121828A (en) | 1988-10-31 | 1988-10-31 | Bulging jig for resin hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63274769A JPH02121828A (en) | 1988-10-31 | 1988-10-31 | Bulging jig for resin hose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02121828A true JPH02121828A (en) | 1990-05-09 |
Family
ID=17546318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63274769A Pending JPH02121828A (en) | 1988-10-31 | 1988-10-31 | Bulging jig for resin hose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02121828A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5711177A (en) * | 1996-06-27 | 1998-01-27 | Toyota Jidosha Kabushiki Kaisha | Method for corrugating a metallic pipe |
| JP2007117485A (en) * | 2005-10-28 | 2007-05-17 | Itoki Corp | Back-to-back type desk system |
| WO2015162520A3 (en) * | 2014-04-22 | 2016-01-07 | Sica S.P.A. | Apparatus and method for heating pipes made of thermoplastic material. |
-
1988
- 1988-10-31 JP JP63274769A patent/JPH02121828A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5711177A (en) * | 1996-06-27 | 1998-01-27 | Toyota Jidosha Kabushiki Kaisha | Method for corrugating a metallic pipe |
| JP2007117485A (en) * | 2005-10-28 | 2007-05-17 | Itoki Corp | Back-to-back type desk system |
| WO2015162520A3 (en) * | 2014-04-22 | 2016-01-07 | Sica S.P.A. | Apparatus and method for heating pipes made of thermoplastic material. |
| US10478997B2 (en) | 2014-04-22 | 2019-11-19 | Sica S.P.A. | Apparatus and method for heating pipes made of thermoplastic material |
| US11104040B2 (en) | 2014-04-22 | 2021-08-31 | Sica S.P.A. | Apparatus and method for heating pipes made of thermoplastic material |
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