JPS574739A - Method of molding synthetic resin article - Google Patents
Method of molding synthetic resin articleInfo
- Publication number
- JPS574739A JPS574739A JP7924080A JP7924080A JPS574739A JP S574739 A JPS574739 A JP S574739A JP 7924080 A JP7924080 A JP 7924080A JP 7924080 A JP7924080 A JP 7924080A JP S574739 A JPS574739 A JP S574739A
- Authority
- JP
- Japan
- Prior art keywords
- parison
- lubricant
- passage
- molding groove
- mandrel
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4242—Means for deforming the parison prior to the blowing operation
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4242—Means for deforming the parison prior to the blowing operation
- B29C49/4244—Means for deforming the parison prior to the blowing operation during or after laying preform into the final mould
- B29C49/42454—The mould opening plane being vertical
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To form a profile hollow molded article having curved sections or the like without accompanying formation of projections or the like due to the self-adhesion, by spraying a lubricant on the inner surface of a parison to stick to it when the parison is delivered, and blow molding the parison. CONSTITUTION:Use is made of a nozzle 1 comprising an annular resin delivering outlet 4 formed between a die 2 and a mandrel 3, and a passage 5 communicative with a feeding apparatus C provided in the mandrel 3 (the reference numeral 6 designates an extrusion screw for resin). When the parison b is extruded from the deliverling outlet 4 with the nozzle 1 being aligned with a molding groove 14 of a metal mold D, the lubricant c is sprayed from the passage 5 by the feeding apparatus C to be stuck to the inner surface of the parison b. When the parison b is received in the molding groove 14, the feeding of the parison b and the lubricant c is stopped, the members of the metal mold D are closed to cut both ends of the parison by cutting flanges 18, 18, and air is forced-in through the passage 5 to expand the parison b to form the prescribed hollow molded article B in conformity with the molding groove 14.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55079240A JPS5841185B2 (en) | 1980-06-11 | 1980-06-11 | Molding method for synthetic resin products |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55079240A JPS5841185B2 (en) | 1980-06-11 | 1980-06-11 | Molding method for synthetic resin products |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS574739A true JPS574739A (en) | 1982-01-11 |
JPS5841185B2 JPS5841185B2 (en) | 1983-09-10 |
Family
ID=13684328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55079240A Expired JPS5841185B2 (en) | 1980-06-11 | 1980-06-11 | Molding method for synthetic resin products |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5841185B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6078730A (en) * | 1983-10-05 | 1985-05-04 | 株式会社太洋商会 | Non-stop auto-stacker device in bag making machine |
-
1980
- 1980-06-11 JP JP55079240A patent/JPS5841185B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6078730A (en) * | 1983-10-05 | 1985-05-04 | 株式会社太洋商会 | Non-stop auto-stacker device in bag making machine |
JPH0144145B2 (en) * | 1983-10-05 | 1989-09-26 | Taiyo Shokai Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS5841185B2 (en) | 1983-09-10 |
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