JPS5590331A - Blow molding method and improvment of its device - Google Patents
Blow molding method and improvment of its deviceInfo
- Publication number
- JPS5590331A JPS5590331A JP16355978A JP16355978A JPS5590331A JP S5590331 A JPS5590331 A JP S5590331A JP 16355978 A JP16355978 A JP 16355978A JP 16355978 A JP16355978 A JP 16355978A JP S5590331 A JPS5590331 A JP S5590331A
- Authority
- JP
- Japan
- Prior art keywords
- die
- parison
- arrow
- molding
- clamping
- 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.)
- Pending
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
- B29C49/28—Blow-moulding apparatus
- B29C49/30—Blow-moulding apparatus having movable moulds or mould parts
- B29C49/32—Blow-moulding apparatus having movable moulds or mould parts moving "to and fro"
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
PURPOSE:To produce large type products with a sufficient cooling time by determining the injection pressure so as to match the lowering speed of the parison by adjustment with a set of parison feeders by applying movement wherein the feeders are vertically moved to approach the clamping die within a plurality of clamping devices. CONSTITUTION:At the start of the blow molding, a parison feeder/stops as shown by a chain line 1' at the given position C on the base 2'. A plastic stored during the interval is fed downward D as shown by the arrow 6 to a bottom open molds 7 and 7' elevating the injection rate of the parison through an electric and hydraulic control of the lowering speed and the injection pressure. After the clamping of the die, the parison feeder 1 rises and stops at the position C of the arrow 6 while the material is accumulated up to the given amount by a built-in screw toward the tip die side 8. Meanwhile, the die-clamper A finishes the molding with an air conditioning means and moves toward the E side on the base 2 along the arrow 5 cooling the molding. In the meantime, a die-clamper B on the side G moves up to the given position F along the arrow 5 to repeat the molding procedure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16355978A JPS5590331A (en) | 1978-12-28 | 1978-12-28 | Blow molding method and improvment of its device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16355978A JPS5590331A (en) | 1978-12-28 | 1978-12-28 | Blow molding method and improvment of its device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5590331A true JPS5590331A (en) | 1980-07-08 |
Family
ID=15776193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16355978A Pending JPS5590331A (en) | 1978-12-28 | 1978-12-28 | Blow molding method and improvment of its device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5590331A (en) |
-
1978
- 1978-12-28 JP JP16355978A patent/JPS5590331A/en active Pending
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