JPS5775824A - Blow molding of synthetic resin product - Google Patents
Blow molding of synthetic resin productInfo
- Publication number
- JPS5775824A JPS5775824A JP55153597A JP15359780A JPS5775824A JP S5775824 A JPS5775824 A JP S5775824A JP 55153597 A JP55153597 A JP 55153597A JP 15359780 A JP15359780 A JP 15359780A JP S5775824 A JPS5775824 A JP S5775824A
- Authority
- JP
- Japan
- Prior art keywords
- air
- parison
- dies
- blown
- wall surfaces
- 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
- 238000000071 blow moulding Methods 0.000 title abstract 2
- 229920003002 synthetic resin Polymers 0.000 title abstract 2
- 239000000057 synthetic resin Substances 0.000 title abstract 2
- 230000000274 adsorptive effect Effects 0.000 abstract 2
- 238000007664 blowing Methods 0.000 abstract 2
- 238000013459 approach Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
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
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
-
- 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
- B29C49/58—Blowing means
-
- 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 conduct precise blow molding of a synthetic resin product without deflection of thickness, breaks, etc. by a method wherein outer air is blown on the outer surface of a tubular parison supplied into a die and then inner air is blown into this parison. CONSTITUTION:Dies 1, 2 are closed and outer air is blown on the outer periphery of a parison 3 through an air passage 7, an air reservoir 8, each back plate 6. Simultaneously inner air is blown into the parison 3 from an inner air blowing pipe 5. When the dies 1, 2 are clamped, a great portion of the parsion 3 approaches to the inner wall surfaces of the dies 1, 2 but is repulsed by the outer air, floated by the inner wall surfaces of the dies 1, 2, stretched uniformly once and part of the parison is adsorbed by adsorptive pieces 10 having no blowing of the outer air. Then, a cylinder 9 is shrinked, adsorptive pieces 10 are drawn in, the further inner air is blown into the parison 3. Thus, the floating parison 3 is stretched uniformly along the inner wall surfaces of the dies 1, 2, attached tightly to the inner wall surfaces and cooled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55153597A JPS5775824A (en) | 1980-10-31 | 1980-10-31 | Blow molding of synthetic resin product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55153597A JPS5775824A (en) | 1980-10-31 | 1980-10-31 | Blow molding of synthetic resin product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5775824A true JPS5775824A (en) | 1982-05-12 |
Family
ID=15565961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55153597A Pending JPS5775824A (en) | 1980-10-31 | 1980-10-31 | Blow molding of synthetic resin product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5775824A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5190715A (en) * | 1988-09-27 | 1993-03-02 | Ube Industries, Ltd. | Blow molding process for production of hollow type articles |
-
1980
- 1980-10-31 JP JP55153597A patent/JPS5775824A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5190715A (en) * | 1988-09-27 | 1993-03-02 | Ube Industries, Ltd. | Blow molding process for production of hollow type articles |
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