JPS6475214A - Control device of depressurization and suction of molten resin in injection molding machine - Google Patents
Control device of depressurization and suction of molten resin in injection molding machineInfo
- Publication number
- JPS6475214A JPS6475214A JP23240387A JP23240387A JPS6475214A JP S6475214 A JPS6475214 A JP S6475214A JP 23240387 A JP23240387 A JP 23240387A JP 23240387 A JP23240387 A JP 23240387A JP S6475214 A JPS6475214 A JP S6475214A
- Authority
- JP
- Japan
- Prior art keywords
- suction
- molten resin
- depressurization
- sprue
- piston rod
- 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
- 239000011347 resin Substances 0.000 title abstract 7
- 229920005989 resin Polymers 0.000 title abstract 7
- 238000001746 injection moulding Methods 0.000 title 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 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
- 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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2758—Means for preventing drooling by decompression of the moulding material
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To enable depressurization and suction of molten resin in proper quantities and corresponding to molding conditions, by a method wherein a depressurization and suction mechanism of the molten resin capable of controlling a quantity of the suction is provided at a desired position where the same is communicated with a sprue. CONSTITUTION:When desired molten resin is injected through a nozzle attachment 9 an injection mechanism A, the molten resin is cast within a cavity 3 from a gate 4 by passing through a sprue 8. Although mold breaking operation is performed by moving a movable mold 1 after cooling and solidification, a depressurization and suction mechanism 10 of the molten resin is worked by interlocking with the breaking operation. In other words, when a piston 20 is shifted to a suction side by letting out or in desired gas or a desired liquid through hydraulic pressure gate ways 22, 23, the molten resin within the sprue 8 is sucked effectively through a driven movement of a suction piston rod 12 and sucked up within a guide pipe body 14 by a quantity of suction corresponding to a quantity of stroke of the piston rod 12. The quantity of stroke of the suction piston rod 12 can be set up freely by a controlling annular body 25.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23240387A JPS6475214A (en) | 1987-09-18 | 1987-09-18 | Control device of depressurization and suction of molten resin in injection molding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23240387A JPS6475214A (en) | 1987-09-18 | 1987-09-18 | Control device of depressurization and suction of molten resin in injection molding machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6475214A true JPS6475214A (en) | 1989-03-20 |
Family
ID=16938697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23240387A Pending JPS6475214A (en) | 1987-09-18 | 1987-09-18 | Control device of depressurization and suction of molten resin in injection molding machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6475214A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110900980A (en) * | 2019-11-22 | 2020-03-24 | 南通市通州区三槐机械制造有限公司 | Automatic hose shoulder injection machine and plastic spitting mechanism thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5384052A (en) * | 1976-12-30 | 1978-07-25 | Teraoka Shoichi | Melted material injection apparatus |
JPS61213112A (en) * | 1985-03-19 | 1986-09-22 | Nippon Plast Co Ltd | Reaction injection molding method |
JPS63192548A (en) * | 1987-02-04 | 1988-08-09 | Ube Ind Ltd | Injection molding apparatus |
-
1987
- 1987-09-18 JP JP23240387A patent/JPS6475214A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5384052A (en) * | 1976-12-30 | 1978-07-25 | Teraoka Shoichi | Melted material injection apparatus |
JPS61213112A (en) * | 1985-03-19 | 1986-09-22 | Nippon Plast Co Ltd | Reaction injection molding method |
JPS63192548A (en) * | 1987-02-04 | 1988-08-09 | Ube Ind Ltd | Injection molding apparatus |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110900980A (en) * | 2019-11-22 | 2020-03-24 | 南通市通州区三槐机械制造有限公司 | Automatic hose shoulder injection machine and plastic spitting mechanism thereof |
CN110900980B (en) * | 2019-11-22 | 2021-08-27 | 南通市通州区三槐机械制造有限公司 | Automatic hose shoulder injection machine and plastic spitting mechanism thereof |
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