JPH0261631U - - Google Patents
Info
- Publication number
- JPH0261631U JPH0261631U JP13996088U JP13996088U JPH0261631U JP H0261631 U JPH0261631 U JP H0261631U JP 13996088 U JP13996088 U JP 13996088U JP 13996088 U JP13996088 U JP 13996088U JP H0261631 U JPH0261631 U JP H0261631U
- Authority
- JP
- Japan
- Prior art keywords
- pusher
- screw
- backflow prevention
- sealing surface
- injection molding
- 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.)
- Granted
Links
- 230000002265 prevention Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims 2
- 239000000919 ceramic Substances 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Description
第１図は本考案に基づく非ツレマイ式逆流防止
装置実施例のスクリユ回転中の状態を示す断面図
で、第２図は本考案に基づく非ツレマイ式逆流防
止装置実施例の射出・保圧中およびスクリユ回転
初期の状態を示す断面図で、第３図は従来におけ
るツレマイ式逆流防止装置を示す断面図で、第４
図は従来における非ツレマイ式逆流防止装置を示
す断面図である。
１……スクリユヘツド、２……逆流防止リング
、３……スクリユ、４……シリンダ、５……押金
、６……マサツリング、７……カラー、８……オ
シガネ、Ａ……スクリユ初期回転中の摺動面（シ
ール面）。
Fig. 1 is a cross-sectional view showing the state of the non-Thremai type backflow prevention device according to the present invention while the screw is rotating, and Fig. 2 is a cross-sectional view showing the state of the non-Thremai type backflow prevention device according to the present invention during injection and pressure holding. FIG. 3 is a sectional view showing a conventional Tsuremai type backflow prevention device, and FIG.
The figure is a sectional view showing a conventional non-return type backflow prevention device. 1...Screw head, 2...Backflow prevention ring, 3...Screw, 4...Cylinder, 5...Pushing metal, 6...Masatsu ring, 7...Collar, 8...Oshigane, A...Screw during initial rotation Sliding surface (sealing surface).
Claims (1)
に嵌合してシール面を有する押金５と、前記押金
５との間に環状の溶融樹脂通路を形成し前記押金
５とのシール面の間で前記通路を遮断しスクリユ
３と共に回転しないように設けられた逆流防止リ
ング２、を有するインラインスクリユ式射出成形
機において、押金５をカラー７とオシガネ８より
形成し、前記オシガネ８がセラミツク製であるこ
とを特徴とする射出成形機の逆流防止装置。 A ring-shaped molten resin passage is formed between a pusher 5 that fits into a cylindrical portion between the screw head 1 and the screw 3 and has a sealing surface, and the pusher 5 and the sealing surface between the pusher 5 and the pusher 5. In an in-line screw type injection molding machine having a backflow prevention ring 2 provided to block the passage and prevent rotation together with the screw 3, the pusher 5 is formed of a collar 7 and a face plate 8, and the face plate 8 is made of ceramic. A backflow prevention device for an injection molding machine, which is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988139960U JPH054985Y2 (en) | 1988-10-28 | 1988-10-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988139960U JPH054985Y2 (en) | 1988-10-28 | 1988-10-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0261631U true JPH0261631U (en) | 1990-05-08 |
| JPH054985Y2 JPH054985Y2 (en) | 1993-02-09 |
Family
ID=31403700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988139960U Expired - Lifetime JPH054985Y2 (en) | 1988-10-28 | 1988-10-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH054985Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61168912U (en) * | 1985-04-11 | 1986-10-20 | ||
| JPS6226177U (en) * | 1985-07-26 | 1987-02-17 |
-
1988
- 1988-10-28 JP JP1988139960U patent/JPH054985Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61168912U (en) * | 1985-04-11 | 1986-10-20 | ||
| JPS6226177U (en) * | 1985-07-26 | 1987-02-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH054985Y2 (en) | 1993-02-09 |
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