JPH01148315U - - Google Patents
Info
- Publication number
- JPH01148315U JPH01148315U JP4023288U JP4023288U JPH01148315U JP H01148315 U JPH01148315 U JP H01148315U JP 4023288 U JP4023288 U JP 4023288U JP 4023288 U JP4023288 U JP 4023288U JP H01148315 U JPH01148315 U JP H01148315U
- Authority
- JP
- Japan
- Prior art keywords
- blocking member
- prevention device
- backflow prevention
- sprue
- injection compression
- 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
- 230000000903 blocking effect Effects 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000000748 compression moulding Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 3
- 238000007906 compression Methods 0.000 claims 3
- 230000000149 penetrating effect Effects 0.000 claims 1
Description
第１図は本考案の実施例による射出圧縮成形用
金型の断面図、第２図と第３図は逆流防止装置の
ノズルシヤツトピンとノズルとスプルーブツシユ
との関係を示す要部拡大断面図、第４図は第３図
の―線に沿つた断面図、第５図は第３図の矢
印方向から見た拡大矢視図、第６図は成形スプ
ルー先端部分の斜視図である。
４……逆流防止装置、１７……スプルーブツシ
ユ、２２……スプルー、２５……遮断部材（ノズ
ルシヤツトピン）、３０……ノズル、３１……ノ
ズル開口部、３２……遮断部材底面、３３……遮
断部材先端面、３５……スプルーブツシユ内壁面
、３７，３８……遮断部材側面。
Fig. 1 is a cross-sectional view of an injection compression molding mold according to an embodiment of the present invention, and Figs. 2 and 3 are enlarged cross-sections of essential parts showing the relationship between the nozzle shaft pin, nozzle, and sprue bush of the backflow prevention device. 4 is a sectional view taken along the line -- in FIG. 3, FIG. 5 is an enlarged sectional view taken in the direction of the arrow in FIG. 3, and FIG. 6 is a perspective view of the tip of the forming sprue. 4... Backflow prevention device, 17... Sprue bush, 22... Sprue, 25... Blocking member (nozzle shaft pin), 30... Nozzle, 31... Nozzle opening, 32... Blocking member bottom surface, 33...Distal end surface of the blocking member, 35...Inner wall surface of the sprue bush, 37, 38...Side surface of the blocking member.
Claims (1)
てスプルーブツシユの中心線とほぼ垂直方向にス
ライド可能であり、スライド前進位置で遮断部材
の底面がノズル開口部を閉塞する射出圧縮成形用
金型の逆流防止装置において、 ノズル開口部閉塞時に遮断部材の先端面がスプ
ルーブツシユの内壁面に接触しないように、遮断
部材のスライド前進位置が定められ、 遮断部材の側面がスプルー内でスプルーブツシ
ユの内壁面に接触しないように形成されているこ
とを特徴とする射出圧縮成形用金型の逆流防止装
置。 ２ 遮断部材のスライド開始位置が、スプルーブ
ツシユの内壁内に位置していることを特徴とする
、請求項１記載の射出圧縮成形用金型の逆流防止
装置。 ３ 遮断部材の先端面と側面が抜きテーパを有し
ていることを特徴とする、請求項１または請求項
２記載の射出圧縮成形用金型の逆流防止装置。[Claims for Utility Model Registration] 1. The blocking member is capable of penetrating the side wall of the sprue bushing and sliding in a direction substantially perpendicular to the center line of the sprue bushing, and in the sliding forward position, the bottom surface of the blocking member touches the nozzle opening. In a backflow prevention device for an injection compression mold that is closed, the sliding forward position of the blocking member is determined so that the tip end surface of the blocking member does not come into contact with the inner wall surface of the sprue bushing when the nozzle opening is blocked. A backflow prevention device for an injection compression mold, characterized in that a side surface is formed so as not to come into contact with an inner wall surface of a sprue bushing within a sprue. 2. The backflow prevention device for an injection compression mold according to claim 1, wherein the sliding start position of the blocking member is located within the inner wall of the sprue bush. 3. The backflow prevention device for an injection compression molding mold according to claim 1 or 2, wherein the front end and side surfaces of the blocking member have a drawing taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4023288U JPH069826Y2 (en) | 1988-03-26 | 1988-03-26 | Backflow prevention device for injection compression molding dies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4023288U JPH069826Y2 (en) | 1988-03-26 | 1988-03-26 | Backflow prevention device for injection compression molding dies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01148315U true JPH01148315U (en) | 1989-10-13 |
| JPH069826Y2 JPH069826Y2 (en) | 1994-03-16 |
Family
ID=31266706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4023288U Expired - Lifetime JPH069826Y2 (en) | 1988-03-26 | 1988-03-26 | Backflow prevention device for injection compression molding dies |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH069826Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539455A (en) * | 2019-09-30 | 2019-12-06 | 湖北安信塑料模具有限公司 | Supercharged solid wood-plastic die in large cross section |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3619805B2 (en) * | 2001-12-18 | 2005-02-16 | Ｈｏｙａ株式会社 | Lens injection compression molding method |
| JP3766325B2 (en) * | 2001-12-05 | 2006-04-12 | Ｈｏｙａ株式会社 | Lens injection compression molding method |
| JP3998682B2 (en) * | 2004-12-27 | 2007-10-31 | Ｈｏｙａ株式会社 | Lens injection compression molding method |
-
1988
- 1988-03-26 JP JP4023288U patent/JPH069826Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539455A (en) * | 2019-09-30 | 2019-12-06 | 湖北安信塑料模具有限公司 | Supercharged solid wood-plastic die in large cross section |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH069826Y2 (en) | 1994-03-16 |