JPS57126638A - Method and apparatus for forming sirocco fan - Google Patents

Method and apparatus for forming sirocco fan

Info

Publication number
JPS57126638A
JPS57126638A JP1165581A JP1165581A JPS57126638A JP S57126638 A JPS57126638 A JP S57126638A JP 1165581 A JP1165581 A JP 1165581A JP 1165581 A JP1165581 A JP 1165581A JP S57126638 A JPS57126638 A JP S57126638A
Authority
JP
Japan
Prior art keywords
pieces
forming
die
projection pieces
blades
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
Application number
JP1165581A
Other languages
Japanese (ja)
Other versions
JPS6049406B2 (en
Inventor
Jiyun Irie
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.)
KOBAYASHI TEKKOSHO KK
Kobayashi Iron Works Co Ltd
Original Assignee
KOBAYASHI TEKKOSHO KK
Kobayashi Iron Works Co 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 KOBAYASHI TEKKOSHO KK, Kobayashi Iron Works Co Ltd filed Critical KOBAYASHI TEKKOSHO KK
Priority to JP1165581A priority Critical patent/JPS6049406B2/en
Publication of JPS57126638A publication Critical patent/JPS57126638A/en
Publication of JPS6049406B2 publication Critical patent/JPS6049406B2/en
Expired 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • 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
    • B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
    • B29L2031/087—Propellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain the titled fan which has no difference in the external diameters at both of its end parts, light in weight and excellent in balance of rotation by using a movable die and a fixed one which are provided with projection pieces for forming a space between blades with enough intervals respectively on both sides of a ringed split slide piece. CONSTITUTION:A fixed die 12 having projection pieces 17, 172 for forming a space between blades and a movable die are provided at enough intervals respectively on both sides of a ringed split slide piece 11 for forming outside edges of a blade 10. Into the gaps formed between each of the projection pieces, resin in injected in the manner that, the projection pieces of these two dies are arranged by inserting these pieces from both sides so that end tip of these pieces does not come in contact with other mating die, while leaving spaces sufficient enough for forming each blade inbetween the interval of projection pieces of other mating die on the inner periphery of slide pieces. After the resion is hardened, the fixed die is separated from the movable one to form the blades in a unitary body.
JP1165581A 1981-01-30 1981-01-30 Method and device for forming Shirodskov fan Expired JPS6049406B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1165581A JPS6049406B2 (en) 1981-01-30 1981-01-30 Method and device for forming Shirodskov fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1165581A JPS6049406B2 (en) 1981-01-30 1981-01-30 Method and device for forming Shirodskov fan

Publications (2)

Publication Number Publication Date
JPS57126638A true JPS57126638A (en) 1982-08-06
JPS6049406B2 JPS6049406B2 (en) 1985-11-01

Family

ID=11783976

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1165581A Expired JPS6049406B2 (en) 1981-01-30 1981-01-30 Method and device for forming Shirodskov fan

Country Status (1)

Country Link
JP (1) JPS6049406B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6087397U (en) * 1983-11-22 1985-06-15 カルソニックカンセイ株式会社 multi-blade fan device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6087397U (en) * 1983-11-22 1985-06-15 カルソニックカンセイ株式会社 multi-blade fan device
JPS6343435Y2 (en) * 1983-11-22 1988-11-11

Also Published As

Publication number Publication date
JPS6049406B2 (en) 1985-11-01

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