JPS5788945A - Vacuum molding method of core - Google Patents
Vacuum molding method of coreInfo
- Publication number
- JPS5788945A JPS5788945A JP55164645A JP16464580A JPS5788945A JP S5788945 A JPS5788945 A JP S5788945A JP 55164645 A JP55164645 A JP 55164645A JP 16464580 A JP16464580 A JP 16464580A JP S5788945 A JPS5788945 A JP S5788945A
- Authority
- JP
- Japan
- Prior art keywords
- core
- suction
- pipe
- shape
- suction pipe
- 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
Abstract
PURPOSE: To act the suction force from a suction pipe over the entre area of a core by providing a branch pipe at the intermediate of the suction pipe to be inserted into the core thereby branching and extending the suction pipe in manufacturing a relatively large core or a core of an intricate shape by a vacuum molding method.
CONSTITUTION: With, for example, a core of a spherical shape, unitized straight pipe type suction pipes which are connected to an axial line by means of screws through a core print 10 of the core consisting of molding sand 12 packed in an airtight film 1 to provide a main suction pipe 13. However, the shape holding of the core is difficult with the suction for by this alone and therefore a cruciform type branch pipe 9 is disposed in the central part of the core, and flexible hoses 7 are extended from this in accordance with the shape of the core. Auxiliary suction chambers 8 are disposed at their leading ends, and the air in the sand is sucked through the respective screens 4 by means of a vacuum pump connected to the flexible hose 5 of the pipe 13, whereby the shape of the core is maintained and the rapping is made possible.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55164645A JPS5788945A (en) | 1980-11-25 | 1980-11-25 | Vacuum molding method of core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55164645A JPS5788945A (en) | 1980-11-25 | 1980-11-25 | Vacuum molding method of core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5788945A true JPS5788945A (en) | 1982-06-03 |
Family
ID=15797111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55164645A Pending JPS5788945A (en) | 1980-11-25 | 1980-11-25 | Vacuum molding method of core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5788945A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0680992A (en) * | 1992-09-03 | 1994-03-22 | S N Ii Sogo Kenkyusho:Kk | Detergent and production of mineral ion liquid |
| CN102259165A (en) * | 2011-07-11 | 2011-11-30 | 潍坊凯力石油化工机械有限公司 | Vacuum sealing core making method |
| CN103736926A (en) * | 2013-12-25 | 2014-04-23 | 柳州正菱集团有限公司 | Negative-pressure sand box for evanescent mode |
| CN114347399A (en) * | 2021-12-16 | 2022-04-15 | 苏州瑞尔福精密模具有限公司 | Drawing mechanism for injection mold and using method thereof |
-
1980
- 1980-11-25 JP JP55164645A patent/JPS5788945A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0680992A (en) * | 1992-09-03 | 1994-03-22 | S N Ii Sogo Kenkyusho:Kk | Detergent and production of mineral ion liquid |
| CN102259165A (en) * | 2011-07-11 | 2011-11-30 | 潍坊凯力石油化工机械有限公司 | Vacuum sealing core making method |
| CN103736926A (en) * | 2013-12-25 | 2014-04-23 | 柳州正菱集团有限公司 | Negative-pressure sand box for evanescent mode |
| CN114347399A (en) * | 2021-12-16 | 2022-04-15 | 苏州瑞尔福精密模具有限公司 | Drawing mechanism for injection mold and using method thereof |
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