JPH0331526U - - Google Patents
Info
- Publication number
- JPH0331526U JPH0331526U JP8862189U JP8862189U JPH0331526U JP H0331526 U JPH0331526 U JP H0331526U JP 8862189 U JP8862189 U JP 8862189U JP 8862189 U JP8862189 U JP 8862189U JP H0331526 U JPH0331526 U JP H0331526U
- Authority
- JP
- Japan
- Prior art keywords
- core
- upper mold
- recess
- mold
- 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.)
- Granted
Links
- 238000000465 moulding Methods 0.000 claims description 2
- 239000012778 molding material Substances 0.000 claims 2
- 230000013011 mating Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 1
Description
第１図乃至第４図は本考案の一実施例に係る成
形型を示しており、第１図は要部縦断面図、第２
図は第１図のコア先端部の要部縦断面図、第３図
は第２図の平面図、第４図は全体縦断面図、第５
図は従来の成形型の半縦断面図、第６図は第５図
の要部拡大縦断面図、第７図は第５図の成形型に
よる成形途中の材料充填状態の材料のみを取り出
して示す正面図、第８図はバリ取り工程における
成形型の要部縦断面図、第９図はバリ残りが大き
くなつた成形品の部分縦断面図である。
符号の説明、１……上型、１Ａ，１Ｂ……第１
、第２上型、１１……差し口、１２……凹部、２
……下型、２Ａ，２Ｂ……第１、第２下型、３…
…空間、４……コア、４Ａ，４Ｂ……第１、第２
コア、４１……頭部、４２……棒状部、４３……
孔、４４……ガイドブツシユ、４５……環状突堤
（コア先端部）、５……キヤビテイ、６１……ス
プル、６２……ゴム溜り、７……環状ゲート、８
……インロー部、８１……インローガイド部（嵌
合部）、９……通路、１０……成形型。
1 to 4 show a mold according to an embodiment of the present invention, FIG. 1 is a vertical sectional view of the main part,
The figure is a vertical cross-sectional view of the main part of the core tip in Figure 1, Figure 3 is a plan view of Figure 2, Figure 4 is an overall vertical cross-sectional view, and Figure 5 is a vertical cross-sectional view of the main part of the core tip.
The figure is a half-longitudinal sectional view of a conventional mold, FIG. 6 is an enlarged longitudinal sectional view of the main part of FIG. 5, and FIG. FIG. 8 is a longitudinal cross-sectional view of the main part of the mold in the deburring process, and FIG. 9 is a partial vertical cross-sectional view of the molded product with large residual burrs. Explanation of symbols, 1... Upper mold, 1A, 1B... 1st
, second upper mold, 11... spigot, 12... recess, 2
...lower mold, 2A, 2B...first, second lower mold, 3...
...Space, 4...Core, 4A, 4B...1st, 2nd
Core, 41... Head, 42... Rod-shaped part, 43...
Hole, 44... Guide bush, 45... Annular jetty (core tip), 5... Cavity, 61... Sprue, 62... Rubber reservoir, 7... Annular gate, 8
... Pilot section, 81 ... Pilot guide section (fitting section), 9 ... Passage, 10 ... Molding mold.
Claims (1)
に、この空間内に下型に嵌合するコアを挿入して
コアの周りに環状のキヤビテイを形成し、一方コ
ア先端部を上型内壁に設けた凹部に挿入してコア
先端部外周と凹部内周との間に上記キヤビテイと
連通する環状ゲートを形成し、上型には凹部に連
通するスプルを設けた成形型において、 前記コア先端部に、前記環状ゲートよりも成形
材料の流れ方向上流側において上型の凹部内周と
嵌合してコアと上型間の芯合せを行なう嵌合部を
設けると共に、この嵌合部には成形材料の流通を
許容する通路を設けて成ることを特徴とする成形
型。[Claims for Utility Model Registration] A space is formed between the mating surfaces of the upper mold and the lower mold, and a core that fits into the lower mold is inserted into this space to form an annular cavity around the core. On the other hand, the tip of the core is inserted into a recess provided in the inner wall of the upper mold to form an annular gate that communicates with the cavity between the outer periphery of the core tip and the inner periphery of the recess, and the upper mold has a sprue that communicates with the recess. In the provided mold, a fitting portion is provided at the tip of the core and fits into the inner periphery of the recess of the upper mold on the upstream side of the annular gate in the flow direction of the molding material to perform center alignment between the core and the upper mold. A molding die characterized in that the fitting portion is provided with a passageway for allowing flow of molding material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8862189U JPH0647705Y2 (en) | 1989-07-28 | 1989-07-28 | Mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8862189U JPH0647705Y2 (en) | 1989-07-28 | 1989-07-28 | Mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0331526U true JPH0331526U (en) | 1991-03-27 |
| JPH0647705Y2 JPH0647705Y2 (en) | 1994-12-07 |
Family
ID=31638223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8862189U Expired - Lifetime JPH0647705Y2 (en) | 1989-07-28 | 1989-07-28 | Mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0647705Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014237224A (en) * | 2013-06-06 | 2014-12-18 | 日本バルカー工業株式会社 | Device for producing molded article |
-
1989
- 1989-07-28 JP JP8862189U patent/JPH0647705Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014237224A (en) * | 2013-06-06 | 2014-12-18 | 日本バルカー工業株式会社 | Device for producing molded article |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0647705Y2 (en) | 1994-12-07 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |