JPH0439412B2 - - Google Patents
Info
- Publication number
- JPH0439412B2 JPH0439412B2 JP9463887A JP9463887A JPH0439412B2 JP H0439412 B2 JPH0439412 B2 JP H0439412B2 JP 9463887 A JP9463887 A JP 9463887A JP 9463887 A JP9463887 A JP 9463887A JP H0439412 B2 JPH0439412 B2 JP H0439412B2
- Authority
- JP
- Japan
- Prior art keywords
- screw
- screw head
- valve body
- convex portion
- tip
- 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.)
- Expired
Links
- 239000011347 resin Substances 0.000 claims description 24
- 229920005989 resin Polymers 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000011017 operating method Methods 0.000 claims 1
- 125000006850 spacer group Chemical group 0.000 description 5
- 210000000078 claw Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
- B29C45/50—Axially movable screw
- B29C45/52—Non-return devices
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9463887A JPS63260414A (ja) | 1987-04-17 | 1987-04-17 | スクリュの逆流防止弁装置およびその操作方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9463887A JPS63260414A (ja) | 1987-04-17 | 1987-04-17 | スクリュの逆流防止弁装置およびその操作方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63260414A JPS63260414A (ja) | 1988-10-27 |
| JPH0439412B2 true JPH0439412B2 (en]) | 1992-06-29 |
Family
ID=14115810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9463887A Granted JPS63260414A (ja) | 1987-04-17 | 1987-04-17 | スクリュの逆流防止弁装置およびその操作方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63260414A (en]) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6921190B2 (en) * | 2003-04-22 | 2005-07-26 | Mgs Mfg. Group Inc. | Injector with improved small shot metering |
| JP4434715B2 (ja) * | 2003-12-12 | 2010-03-17 | 東芝機械株式会社 | スクリュの逆流防止装置 |
| JP4887123B2 (ja) * | 2006-11-14 | 2012-02-29 | 東芝機械株式会社 | インラインスクリュ式射出成形機の逆流防止装置 |
| JP5019165B2 (ja) * | 2007-04-06 | 2012-09-05 | 宇部興産機械株式会社 | 射出成形機用スクリュ、射出成形装置及び射出成形方法 |
| AT511617B1 (de) * | 2011-09-09 | 2013-01-15 | Engel Austria Gmbh | Rückstromsperre für eine plastifizierschnecke einer spritzgiessmaschine |
-
1987
- 1987-04-17 JP JP9463887A patent/JPS63260414A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63260414A (ja) | 1988-10-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |