JPS57197136A - Mold apparatus of injection molding machine - Google Patents
Mold apparatus of injection molding machineInfo
- Publication number
- JPS57197136A JPS57197136A JP8313381A JP8313381A JPS57197136A JP S57197136 A JPS57197136 A JP S57197136A JP 8313381 A JP8313381 A JP 8313381A JP 8313381 A JP8313381 A JP 8313381A JP S57197136 A JPS57197136 A JP S57197136A
- Authority
- JP
- Japan
- Prior art keywords
- vacuum
- cavity space
- mold
- pressure
- nozzle
- 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
- 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
- B29C45/34—Moulds having venting means
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To reduce time of a vacuum formation and consumption of energy and improve an operation efficiency, by sucking and evacuating the air in a cavity space from upper and lower mold frames through a sprue runner in a operation which makes the vacuum in a mold apparatus. CONSTITUTION:When an upper mold platen 5 is lowered integrally with an upper mold 1, a vacuum cover 12, a pressure-resistant cylinder 4, the upper mold 1 is pushed down, being matched with a lower mold 2, and a parting face of upper and lower molds 1, 2 is sealed by sealing member 11. A vacuum pump being operated, air in a cavity space 3 is sucked, evacuated via a sprue runner 3a, an inner space 12' of the vacuum cover 12, an exhaust hole 12f, an exhaust pipe 12g, a vacuum is formed in the cavity space 3. At an injection stage the pressure-resistant cylinder 4 and its nozzle part 4b are lowered, a nozzle 4a is contacted to a sprue bush 3b and a molten resin in the pressure-resistant cylinder 4 is injected from the nozzle 4a. The molten resin is sucked and flows into every corners in the cavity space 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8313381A JPS57197136A (en) | 1981-05-30 | 1981-05-30 | Mold apparatus of injection molding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8313381A JPS57197136A (en) | 1981-05-30 | 1981-05-30 | Mold apparatus of injection molding machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57197136A true JPS57197136A (en) | 1982-12-03 |
Family
ID=13793695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8313381A Pending JPS57197136A (en) | 1981-05-30 | 1981-05-30 | Mold apparatus of injection molding machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57197136A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61263719A (en) * | 1985-05-20 | 1986-11-21 | Nippon Mektron Ltd | Injection molder |
WO1989005225A1 (en) * | 1987-12-04 | 1989-06-15 | Bucher-Guyer Ag Maschinenfabrik | Process and device for making plastic mouldings |
JP2006272840A (en) * | 2005-03-30 | 2006-10-12 | Fukoku Co Ltd | Vacuum injection molding apparatus |
AT504878B1 (en) * | 2007-04-13 | 2008-09-15 | Engel Austria Gmbh | DEVICE FOR PLACING PLASTIC MELTS |
JP2010173228A (en) * | 2009-01-30 | 2010-08-12 | Canon Electronics Inc | Injection molding machine |
DE102010046247A1 (en) | 2009-10-08 | 2011-04-14 | Engel Austria Gmbh | Injection molding machine with protective device |
DE102010048462A1 (en) | 2010-10-14 | 2012-04-19 | Kraussmaffei Technologies Gmbh | Injection molding machine, has hood provided at nozzle plate at sides of injection unit, where hood exhibits length toward longitudinal axis of machine such that front end lies under hood in maintenance position of injection unit |
CN110681840A (en) * | 2019-10-21 | 2020-01-14 | 胡利丽 | High-vacuum die-casting device for die-casting die |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4954463A (en) * | 1972-09-29 | 1974-05-27 |
-
1981
- 1981-05-30 JP JP8313381A patent/JPS57197136A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4954463A (en) * | 1972-09-29 | 1974-05-27 |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61263719A (en) * | 1985-05-20 | 1986-11-21 | Nippon Mektron Ltd | Injection molder |
JPH0154176B2 (en) * | 1985-05-20 | 1989-11-17 | Nippon Mektron Kk | |
WO1989005225A1 (en) * | 1987-12-04 | 1989-06-15 | Bucher-Guyer Ag Maschinenfabrik | Process and device for making plastic mouldings |
JP2006272840A (en) * | 2005-03-30 | 2006-10-12 | Fukoku Co Ltd | Vacuum injection molding apparatus |
JP4719913B2 (en) * | 2005-03-30 | 2011-07-06 | 株式会社フコク | Vacuum injection molding equipment |
AT504878B1 (en) * | 2007-04-13 | 2008-09-15 | Engel Austria Gmbh | DEVICE FOR PLACING PLASTIC MELTS |
JP2010173228A (en) * | 2009-01-30 | 2010-08-12 | Canon Electronics Inc | Injection molding machine |
DE102010046247A1 (en) | 2009-10-08 | 2011-04-14 | Engel Austria Gmbh | Injection molding machine with protective device |
DE102010048462A1 (en) | 2010-10-14 | 2012-04-19 | Kraussmaffei Technologies Gmbh | Injection molding machine, has hood provided at nozzle plate at sides of injection unit, where hood exhibits length toward longitudinal axis of machine such that front end lies under hood in maintenance position of injection unit |
CN110681840A (en) * | 2019-10-21 | 2020-01-14 | 胡利丽 | High-vacuum die-casting device for die-casting die |
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