JPS57169323A - Manufacturing method and apparatus of rack gear - Google Patents
Manufacturing method and apparatus of rack gearInfo
- 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
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)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Gears, Cams (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.
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) |
-
1981
- 1981-04-14 JP JP5496381A patent/JPS57169323A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0159090B2 (en) | 1989-12-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0191986A3 (en) | Continuous method for making chewing gum | |
ES2148278T3 (en) | FORMATION OF THREE-DIMENSIONAL SURFACES OF SYNTHETIC FOAM PADS THROUGH A CONTINUOUS ROTARY PROCESS. | |
ES535805A0 (en) | METHOD AND APPARATUS FOR PRODUCING AN EXTRUDED PLASTIC MATERIAL PRODUCT WITH A DEFAULT CROSS-SHAPE | |
JPS5743852A (en) | Die for multiple extrusion of thermoplastic material | |
US4563320A (en) | Making thermoplastic items | |
US3635614A (en) | Apparatus for producing embossed plastic articles | |
ES8205154A1 (en) | Method of and apparatus for molding a continuous thermoplastic coupling element strip for slide fasteners | |
GB2082496A (en) | Sheet forming | |
JPS57169323A (en) | Manufacturing method and apparatus of rack gear | |
JPS57157724A (en) | Extrusion laminating method for ethylene-based resin | |
JPS5458766A (en) | Multicolored vessels and their formation | |
ES8307140A1 (en) | Process and apparatus for producing elongate aluminium products | |
DE1629658C2 (en) | Method of making flat foam plastic products | |
JPS5678357A (en) | Manufacture of yoke for rotary electric machine | |
EP0143954A3 (en) | Process for manufacturing mould parts according to the cold-box method, mould part formed and moulding apparatus used | |
JPS55156026A (en) | Manufacture of packing band | |
JPS55139113A (en) | Continuous casting and extruding apparatus of small capacity | |
EP0259046A3 (en) | Method and apparatus for moulding plastic material | |
JPS57169336A (en) | Manufacture and apparatus of synthetic resin molded product having protrusions intermittently along longitudinal direction | |
JPS57150523A (en) | Production system in continuous forming line | |
JPS5514170A (en) | Extruding method for profile of same or different shape with same die | |
JPS56165514A (en) | Method and apparatus for manufacturing extruded semihollow shape of aluminum alloy | |
JPS56169040A (en) | Preparation of sheet from waste plastic | |
JPS57207038A (en) | method of forming molding | |
ATE102509T1 (en) | METHOD FOR EXTRUSION OR. PULLING. |