JPS57169323A - Manufacturing method and apparatus of rack gear - Google Patents

Manufacturing method and apparatus of rack gear

Info

Publication number
JPS57169323A
JPS57169323A JP5496381A JP5496381A JPS57169323A JP S57169323 A JPS57169323 A JP S57169323A JP 5496381 A JP5496381 A JP 5496381A JP 5496381 A JP5496381 A JP 5496381A JP S57169323 A JPS57169323 A JP S57169323A
Authority
JP
Japan
Prior art keywords
die
pattern roll
roll
molded product
wedge
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
JP5496381A
Other languages
Japanese (ja)
Other versions
JPH0159090B2 (en
Inventor
Hirozo Kamishino
Akihiro Kunimoto
Shigeru Hiyouda
Shoichi Tanaka
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.)
Ube Corp
Original Assignee
Ube Industries 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 Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP5496381A priority Critical patent/JPS57169323A/en
Publication of JPS57169323A publication Critical patent/JPS57169323A/en
Publication of JPH0159090B2 publication Critical patent/JPH0159090B2/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
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D15/00—Producing gear wheels or similar articles with grooves or projections, e.g. control knobs
    • 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
    • B29L2031/775—Toothed articles
    • B29L2031/7752—Racks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain a continuous length of a rack gear having teeth of high strength of long size, by introducing melted resin extruded from the die of an extuder between a wedge like die and a pattern roll provided neigh-boring thereof and cooling, solidifying on the pattern roll, thereafter passing through a correction roll. CONSTITUTION:Resin extruded from a passage 9 of a die 8 is introduced between a declined face 10a inside a wedge like die 10 and a pattern roll 12, receives pressure from both and it is forced into the inside of a notch part formed in a peripheral face of the pattern roll 12, cooled, solidified and taken out as a molded product 13. After the molded product 13 sent out from the pattern roll 12 is made straight by warping it to a reverse side by passing through a correction roll 15, a straight and continuous length rack 1 is continuously manufactured by slitting a flash remaining on the sides of the molded product 13 by a slitting device 14.
JP5496381A 1981-04-14 1981-04-14 Manufacturing method and apparatus of rack gear Granted JPS57169323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5496381A JPS57169323A (en) 1981-04-14 1981-04-14 Manufacturing method and apparatus of rack gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5496381A JPS57169323A (en) 1981-04-14 1981-04-14 Manufacturing method and apparatus of rack gear

Publications (2)

Publication Number Publication Date
JPS57169323A true JPS57169323A (en) 1982-10-19
JPH0159090B2 JPH0159090B2 (en) 1989-12-14

Family

ID=12985312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5496381A Granted JPS57169323A (en) 1981-04-14 1981-04-14 Manufacturing method and apparatus of rack gear

Country Status (1)

Country Link
JP (1) JPS57169323A (en)

Also Published As

Publication number Publication date
JPH0159090B2 (en) 1989-12-14

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