JPS57137112A - Manufacture of plastic pipe joint - Google Patents
Manufacture of plastic pipe jointInfo
- Publication number
- JPS57137112A JPS57137112A JP56023579A JP2357981A JPS57137112A JP S57137112 A JPS57137112 A JP S57137112A JP 56023579 A JP56023579 A JP 56023579A JP 2357981 A JP2357981 A JP 2357981A JP S57137112 A JPS57137112 A JP S57137112A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- receiving port
- temperature zone
- piece
- frontal portion
- 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
- 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
- B29C45/261—Moulds having tubular mould cavities
- B29C45/2612—Moulds having tubular mould cavities for manufacturing tubular articles with an annular groove
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0003—Discharging moulded articles from the mould
- B29C37/0014—Discharging moulded articles from the mould by flexibly or permanently deforming undercut portions of the 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
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C45/4407—Removing or ejecting moulded articles for undercut articles by flexible movement of undercut portions of the articles
-
- 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
- B29L2031/24—Pipe joints or couplings
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
PURPOSE:To effectively cool the frontal portion of receiving port when molds are removed by using a system in which the high-temperature zone of an outer mold is made up of a hot mold piece and also the low-temperature zone is made up of a cold metal piece so that the inside diameter of the frontal portion of the receiving port is made smaller than that of the rear portion of the port. CONSTITUTION:For molds through which a plastic pipe joint having a receiving port with a groove A to be fitted with a rubber ring is molded by injection, the inside diameter R1 of the frontal portion B of the receiving port is made smaller than that R2 of the rear portion C of the port, and also the high-temperature zone of the outer mold 1 is made up of a hot mold piece 11 and the low-temperature zone is made up of a cold mold piece 12. And, when the core mold 2 is removed and moved, the frontal portion B of the receiving port is opened up forcibly by the low-temperature zone 22 of the core mold, the hot mold piece 11 of the outer mold is cooled to a given temperature after slipping out, and immediately after slipping out and moving the core mold 2, the frontal portion B of the receiving port is adjusted and molded, together with the groove to be fitted with the rubber ring, by the mold piece 11.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56023579A JPS57137112A (en) | 1981-02-18 | 1981-02-18 | Manufacture of plastic pipe joint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56023579A JPS57137112A (en) | 1981-02-18 | 1981-02-18 | Manufacture of plastic pipe joint |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57137112A true JPS57137112A (en) | 1982-08-24 |
JPS6247702B2 JPS6247702B2 (en) | 1987-10-09 |
Family
ID=12114464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56023579A Granted JPS57137112A (en) | 1981-02-18 | 1981-02-18 | Manufacture of plastic pipe joint |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57137112A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2598961A1 (en) * | 1986-05-26 | 1987-11-27 | Fip Formatura Inienzione Poli | DEVICE FOR FORMING THERMOPLASTIC PRODUCTS HAVING RETAILERS |
JP2019171885A (en) * | 2015-01-30 | 2019-10-10 | 株式会社オンダ製作所 | Method of manufacturing pipe joint |
-
1981
- 1981-02-18 JP JP56023579A patent/JPS57137112A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2598961A1 (en) * | 1986-05-26 | 1987-11-27 | Fip Formatura Inienzione Poli | DEVICE FOR FORMING THERMOPLASTIC PRODUCTS HAVING RETAILERS |
JP2019171885A (en) * | 2015-01-30 | 2019-10-10 | 株式会社オンダ製作所 | Method of manufacturing pipe joint |
Also Published As
Publication number | Publication date |
---|---|
JPS6247702B2 (en) | 1987-10-09 |
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