JPS6233440B2 - - Google Patents

Info

Publication number
JPS6233440B2
JPS6233440B2 JP54148944A JP14894479A JPS6233440B2 JP S6233440 B2 JPS6233440 B2 JP S6233440B2 JP 54148944 A JP54148944 A JP 54148944A JP 14894479 A JP14894479 A JP 14894479A JP S6233440 B2 JPS6233440 B2 JP S6233440B2
Authority
JP
Japan
Prior art keywords
protrusion
blade
shroud
rear shroud
hollow recess
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
Application number
JP54148944A
Other languages
Japanese (ja)
Other versions
JPS5672293A (en
Inventor
Masatoshi Tanabe
Shigetomo Yoshihara
Jukichi Tamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14894479A priority Critical patent/JPS5672293A/en
Publication of JPS5672293A publication Critical patent/JPS5672293A/en
Publication of JPS6233440B2 publication Critical patent/JPS6233440B2/ja
Granted legal-status Critical Current

Links

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
    • 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
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/782—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined
    • B29C65/7823—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint
    • B29C65/7829—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint said distance pieces being integral with at least one of 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
    • 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
    • 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
    • B29C66/114—Single butt 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
    • 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
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/748—Machines or parts thereof not otherwise provided for
    • B29L2031/7496—Pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は合成樹脂製ポンプ用羽根車の製造方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of manufacturing a synthetic resin pump impeller.

〔従来の技術〕[Conventional technology]

従来の合成樹脂製ポンプ用羽根車の製造方法
は、特開昭53−54301号公報に示されているよう
に、合成樹脂で前面シユラウドと後面シユラウド
とを各々別個に製作し、前面シユラウドに一体に
複数の羽根を形成すると共に、この羽根の後面シ
ユラウド側端面に一体に突部を形成しておき、後
面シユラウドの羽根に対応する部分に凹溝を形成
しておき、突部を凹溝の底面に当接して超音波溶
融することにより溶着し、前面シユラウドと後面
シユラウドとを一体に構成する方法が公知であ
る。 The conventional manufacturing method for synthetic resin pump impellers is as shown in Japanese Patent Application Laid-Open No. 53-54301, in which a front shroud and a rear shroud are manufactured separately from synthetic resin, and then integrated into the front shroud. A plurality of blades are formed on the blade, and a protrusion is integrally formed on the end face of the rear shroud side of the blade. A groove is formed in a portion of the rear shroud corresponding to the blade, and the protrusion is inserted into the groove. A method is known in which the front shroud and the rear shroud are integrally constructed by welding them by contacting the bottom surface and applying ultrasonic melting.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

かかる従来の製造方法によれば、突部が溶融し
た時にできる残骸が流通路内にはみ出してしまう
ため、この残骸が流通抵抗となる問題があつた。
又、羽根全体が肉厚となつているので、材料が多
くかかつていた。更に、羽根の突部までの寸法精
度が十分に出せないために、溶着強度がばらつく
という問題があつた。 According to such a conventional manufacturing method, debris created when the protrusion melts protrudes into the flow path, which poses a problem in that the debris creates flow resistance.
Also, since the entire blade was thick, it required a lot of material. Furthermore, there was a problem in that the welding strength varied because sufficient dimensional accuracy up to the protrusion of the blade could not be achieved.

〔問題点を解決するための手段〕 本発明は、かかる問題点を解決するためになさ
れたもので、合成樹脂で前面シユラウド１２と後
面シユラウド１４とを各々別個に製作し、前記前
面シユラウド１２に一体に複数の羽根２２を形成
すると共に、この羽根２２の後面シユラウド側端
面に一体に突部２８を形成しておき、前記後面シ
ユラウド１４の前記羽根２２に対応する部分に凹
溝３０を形成しておき、前記突部２８を前記凹溝
３０の底面に当接して超音波溶触することにより
溶着し、前記前面シユラウド１２と前記後面シユ
ラウド１４とを合体してポンプ用羽根車を構成す
る合成樹脂製ポンプ用羽根車の製造方法におい
て、前記羽根２２に中空凹部２４を形成すると共
に、この中空凹部２４を囲んで前記羽根２２の外
周面を構成する外壁２６の後面シユラウド側端面
に突部２８を形成し、この突部２８を前記外壁２
６の後面シユラウド側端面の中心線より中空凹部
２４側に偏つて形成したことを特徴とする合成樹
脂製ポンプ用羽根車の製造方法。としたものであ
る。[Means for Solving the Problems] The present invention has been made to solve the above problems.The front shroud 12 and the rear shroud 14 are each manufactured separately from synthetic resin, and the front shroud 12 is made of synthetic resin. A plurality of blades 22 are integrally formed, a protrusion 28 is integrally formed on the end surface of the blade 22 on the rear shroud side, and a groove 30 is formed in a portion of the rear shroud 14 corresponding to the blade 22. Then, the protrusion 28 is brought into contact with the bottom surface of the groove 30 and welded by ultrasonic welding, and the front shroud 12 and the rear shroud 14 are combined to form a synthetic resin that constitutes a pump impeller. In the method for manufacturing an impeller for a manufactured pump, a hollow recess 24 is formed in the blade 22, and a protrusion 28 is formed on the rear shroud side end surface of the outer wall 26 that surrounds the hollow recess 24 and constitutes the outer peripheral surface of the blade 22. This protrusion 28 is formed on the outer wall 2.
6. A method for manufacturing a synthetic resin pump impeller, characterized in that the impeller is formed to be biased toward the hollow recess 24 from the center line of the rear shroud side end surface of No. 6. That is.

〔作用〕[Effect]

かかる合成樹脂製ポンプ用羽根車の製造方法に
よれば、前面シユラウド１２の羽根２２に中空凹
部２４を形成したので、羽根２２の構成する材料
を節約できる。又、羽根２２の中空凹部２４形成
したことにより、この中空凹部２４を囲んで前記
羽根２２の外周面を構成する外壁２６はその中空
凹部２４の形状の調節にてその肉厚を均等にする
ことが可能になる。これによつて、外壁２６から
突部２８までの寸法精度が向上されるので、突部
２８に超音波を加えた際に突部２８の先端から均
等に溶触して平均して凹部３０に溶着する。更
に、羽根２２に中空凹部２４を形成したことと共
に、突部２８を外壁２６の後面シユラウド側端面
の中心線より中空凹部２４側に偏つて形成したの
で、突部２８を溶融した時にできる残骸が中空凹
部２４内に収納でき、流通路１８にはみ出すこと
がなくなる。 According to this method of manufacturing a synthetic resin pump impeller, since the hollow recesses 24 are formed in the blades 22 of the front shroud 12, the material of which the blades 22 are constructed can be saved. Further, by forming the hollow recess 24 of the blade 22, the outer wall 26 that surrounds the hollow recess 24 and constitutes the outer peripheral surface of the blade 22 can have a uniform thickness by adjusting the shape of the hollow recess 24. becomes possible. This improves the dimensional accuracy from the outer wall 26 to the protrusion 28, so that when ultrasonic waves are applied to the protrusion 28, the tip of the protrusion 28 is evenly welded and welded to the recess 30 on average. do. Furthermore, in addition to forming the hollow recess 24 in the blade 22, the protrusion 28 is formed to be biased towards the hollow recess 24 from the center line of the rear shroud side end surface of the outer wall 26, so that debris that is formed when the protrusion 28 is melted is prevented. It can be stored in the hollow recess 24 and does not protrude into the flow path 18.

〔実施例〕〔Example〕

以下、本発明の一実施例を第１図〜第５図に基
づいて説明する。 Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 to 5.

前面シユラウド１２と後面シユラウド１４は、
合成樹脂で、各々別個に製作される。前面シユラ
ウド１２の製作時に、前面シユラウド１２の内側
に一体に複数の羽根２２が形成され、且つ、前面
シユラウド１２の中央部に吸込口１６が形成され
る。前記羽根２２は中空凹部２４が形成されてい
る。この中空凹部２４を囲んで羽根２２の外周面
を構成する外壁２６を有している。この外壁２６
の後面シユラウド側端面に全周あるいは数個所に
突部２８が設けられている。羽根２２と突部２８
にて羽根部２０が構成されている。この突部２８
は外壁２６の中心線より中空凹部２４側にδだけ
偏よつて形成されている。尚、この突部２８に先
端は鉛角に形成されている。一方、後面シユラウ
ド１４の羽根２２に対応する部分に凹溝３０が形
成されている。 The front shroud 12 and the rear shroud 14 are
Each item is individually manufactured from synthetic resin. When the front shroud 12 is manufactured, a plurality of blades 22 are integrally formed inside the front shroud 12, and a suction port 16 is formed in the center of the front shroud 12. The blade 22 has a hollow recess 24 formed therein. It has an outer wall 26 that surrounds the hollow recess 24 and constitutes the outer peripheral surface of the blade 22. This outer wall 26
Projections 28 are provided on the rear shroud side end surface all around or at several locations. Wings 22 and protrusions 28
The blade portion 20 is configured by. This protrusion 28
is formed to be offset by δ from the center line of the outer wall 26 toward the hollow recess 24 . Note that the tip of this protrusion 28 is formed into a vertical angle. On the other hand, a groove 30 is formed in a portion of the rear shroud 14 corresponding to the blade 22.

前記前面シユラウド１２の突部２８が前記後面
シユラウド１４の凹部３０の底面に当接された状
態で超音波を加え、この突部２８の先端から溶融
して、後面シユラウド１４の凹溝３０に溶着し、
前面シユラウド１２と後面シユラウド１４とが一
体に構成されてポンプ用羽根車が形成される。こ
のポンプ用羽根車には吸込口１６から放放射状に
伸びる流通路１８が形成されている。 Ultrasonic waves are applied while the protrusion 28 of the front shroud 12 is in contact with the bottom surface of the recess 30 of the rear shroud 14, and the tip of the protrusion 28 is melted and welded to the groove 30 of the rear shroud 14. death,
The front shroud 12 and the rear shroud 14 are integrally constructed to form a pump impeller. A flow path 18 extending radially from the suction port 16 is formed in this pump impeller.

かかる合成樹脂製ポンプ用羽根車の製造方法に
よれば、前面シユラウド１２の羽根２２に中空凹
部２４を形成したので、羽根２２の構成する材料
を節約して、安価に製造できる。又、羽根２２の
中空凹部２４形成したことにより、この中空凹部
２４を囲んで前記羽根２２の外周面を構成する外
壁２６はその中空凹部２４の形状の調節にその肉
厚を均等にすることが可能になる。これによつ
て、外壁２６から突部２８までの寸法精度が向上
されるので、突部２８に超音波を加えた際に突部
２８の先端から均等に溶融して平均して凹溝３０
に溶着し、溶着強度のばらつきを少なくすること
ができる。更に、羽根２２に中空凹部２４を形成
したことと共に、突部２８を外壁２６の後面シユ
ラウド側端面の中心線より中空凹部２４側に偏つ
て形成したので、突部２８を溶融した時にできる
残骸が中空凹部２４内に収納でき、流通路１８に
はみ出すことがなくなる。これによつて、流通路
１８の流通抵抗が増大するという不都合を生じな
い。 According to this method of manufacturing a synthetic resin pump impeller, since the hollow recesses 24 are formed in the blades 22 of the front shroud 12, the material constituting the blades 22 can be saved and the impeller can be manufactured at low cost. Further, by forming the hollow recess 24 of the blade 22, the outer wall 26 that surrounds the hollow recess 24 and constitutes the outer circumferential surface of the blade 22 can be made uniform in thickness to adjust the shape of the hollow recess 24. It becomes possible. This improves the dimensional accuracy from the outer wall 26 to the protrusion 28, so that when ultrasonic waves are applied to the protrusion 28, the tip of the protrusion 28 is evenly melted and the concave groove 30 is melted on average.
The welding strength can be welded to reduce variations in welding strength. Furthermore, in addition to forming the hollow recess 24 in the blade 22, the protrusion 28 is formed to be biased towards the hollow recess 24 from the center line of the rear shroud side end surface of the outer wall 26, so that debris that is formed when the protrusion 28 is melted is prevented. It can be stored in the hollow recess 24 and does not protrude into the flow path 18. As a result, the disadvantage that the flow resistance of the flow path 18 increases does not occur.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、安価で、前面シユラウド１２
と後面シユラウド１４との溶着強度にばらつきが
少なく、しかも、流通路１８の流通抵抗を増大す
ることなくポンプ用羽根車を製造できる合成樹脂
製ポンプ用羽根車の製造方法を提供できる。 According to the present invention, the front shroud 12 is inexpensive and
It is possible to provide a method for manufacturing a synthetic resin pump impeller in which there is little variation in welding strength between the front shroud 14 and the rear shroud 14, and in addition, the pump impeller can be manufactured without increasing the flow resistance of the flow path 18.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明のポンプ用羽根車の完成状態の
断面図、第２図は同ポンプ用羽根車の製造前の状
態の断面図、第３図は第１図の―断面図、第
４図は同ポンプ用羽根車の製造途中の第３図の
―断面相当図、第５図は同ポンプ用羽根車の製
造前の状態の断面拡大図である。 １２…前面シユラウド、１４…後面シユラウ
ド、１６…吸込口、１８…流通路、２０…羽根
部、２２…羽根、２４…中空凹部、２６…外壁、
２８…突部、３０…凹溝。 FIG. 1 is a cross-sectional view of the pump impeller of the present invention in a completed state, FIG. 2 is a cross-sectional view of the same pump impeller before manufacture, FIG. 3 is a cross-sectional view of FIG. The figure is a cross-sectional equivalent view of FIG. 3 during manufacture of the same pump impeller, and FIG. 5 is an enlarged cross-sectional view of the same pump impeller before manufacture. 12...Front shroud, 14...Rear shroud, 16...Suction port, 18...Flow passage, 20...Blade portion, 22...Blade, 24...Hollow recess, 26...Outer wall,
28... Protrusion, 30... Concave groove.

Claims (1)

【特許請求の範囲】[Claims] １ 合成樹脂で前面シユラウド１２と後面シユラ
ウド１４とを各々別個に製作し、前記前面シユラ
ウド１２に一体に複数の羽根２２を形成すると共
に、この羽根２２の後面シユラウド側端面に一体
に突部２８を形成しておき、前記後面シユラウド
１４の前記羽根２２に対応する部分に凹溝３０を
形成しておき、前記突部２８を前記凹溝３０の底
面に当接して超音波溶融することにより溶着し、
前記前面シユラウド１２と前記後面シユラウド１
４とを合体してポンプ用羽根車を構成する合成樹
脂製ポンプ用羽根車の製造方法において、前記羽
根２２に中空凹部２４を形成すると共に、この中
空凹部２４を囲んで前記羽根２２の外周面を構成
する外壁２６の後面シユラウド側端面に突部２８
を形成し、この突部２８を前記外壁２６の後面シ
ユラウド側端面の中心線より中空凹部２４側に偏
つて形成したことを特徴とする合成樹脂製ポンプ
用羽根車の製造方法。1. The front shroud 12 and the rear shroud 14 are manufactured separately from synthetic resin, and a plurality of blades 22 are integrally formed on the front shroud 12, and a protrusion 28 is integrally formed on the rear shroud side end surface of the blade 22. A groove 30 is formed in a portion of the rear shroud 14 corresponding to the blade 22, and the protrusion 28 is brought into contact with the bottom surface of the groove 30 and welded by ultrasonic melting. ,
The front shroud 12 and the rear shroud 1
In the method for manufacturing a synthetic resin pump impeller in which a pump impeller is formed by combining the blades 22 and 4, a hollow recess 24 is formed in the blade 22, and the outer circumferential surface of the blade 22 is surrounded by the hollow recess 24. A protrusion 28 is formed on the rear shroud side end surface of the outer wall 26 that constitutes the
, and the protrusion 28 is formed to be biased towards the hollow recess 24 from the center line of the rear shroud side end surface of the outer wall 26.
JP14894479A 1979-11-19 1979-11-19 Impeller for pump Granted JPS5672293A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14894479A JPS5672293A (en) 1979-11-19 1979-11-19 Impeller for pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14894479A JPS5672293A (en) 1979-11-19 1979-11-19 Impeller for pump

Publications (2)

Publication Number Publication Date
JPS5672293A JPS5672293A (en) 1981-06-16
JPS6233440B2 true JPS6233440B2 (en) 1987-07-21

Family

ID=15464143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14894479A Granted JPS5672293A (en) 1979-11-19 1979-11-19 Impeller for pump

Country Status (1)

Country Link
JP (1) JPS5672293A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102913479A (en) * 2012-09-18 2013-02-06 宜兴台玉环境工程设备有限公司 Self-positioning impeller baseplate of blade

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6146493A (en) * 1985-07-24 1986-03-06 Hitachi Ltd impeller for pump
DE102016211605A1 (en) * 2016-06-28 2017-12-28 Bühler Motor GmbH METHOD FOR PRODUCING A CIRCULAR PUMP WHEEL
JP2018119515A (en) * 2017-01-27 2018-08-02 日立オートモティブシステムズ株式会社 Fluid pump

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5354301A (en) * 1976-10-28 1978-05-17 Kawamoto Pump Mfg Process for fabricating synthetic resinnmade impellers
JPS54131106U (en) * 1978-03-06 1979-09-11

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102913479A (en) * 2012-09-18 2013-02-06 宜兴台玉环境工程设备有限公司 Self-positioning impeller baseplate of blade

Also Published As

Publication number Publication date
JPS5672293A (en) 1981-06-16

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