JPS6394711U - - Google Patents
Info
- Publication number
- JPS6394711U JPS6394711U JP19047986U JP19047986U JPS6394711U JP S6394711 U JPS6394711 U JP S6394711U JP 19047986 U JP19047986 U JP 19047986U JP 19047986 U JP19047986 U JP 19047986U JP S6394711 U JPS6394711 U JP S6394711U
- Authority
- JP
- Japan
- Prior art keywords
- cavity
- mold according
- injection mold
- protrusion
- submarine gate
- 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
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000001746 injection moulding Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Description
第1図はこの考案に係る射出成形金型の一実施
例の構成を示す断面図;第2図はサブマリンゲー
トの形状を示すために可動金型の一部を取り出し
て示す斜視図;第3図は溶融樹脂が充填された状
態の射出成形金型を示す断面図;第4図は可動金
型が移動されて成形品の離型動作の初期の状態を
示す断面図;第5図は離型動作が進んで、成形品
が切刃によりサブマリンゲートにおいて固化した
樹脂から切断された状態を示す断面図;第6A図
及び第6B図はこの一実施例の第1の変形例を夫
々示す斜視図及び断面図;第7A図及び第7B図
はこの一実施例の第2の変形例を夫々示す斜視図
及び断面図;第8A図及び第8B図はこの一実施
例の第3の変形例を夫々示す斜視図及び断面図;
第9図は従来のサブマリンゲートの形状を示す断
面図;第10図は従来のサブマリンゲートを備え
た射出成形金型において、成形品の離型時の初期
状態を示す断面図;そして第11図は従来のサブ
マリンゲートを備えた射出成形金型において離型
時のカケの発生を示す断面図である。
図中、10……射出成形金型、12……固定金
型、14……可動金型、16……キヤビテイ、1
8……ランナ、20……サブマリンゲート、22
……切刃、24……フラツト面、26……開口部
、28,30……エジエクタピン、32……通路
、34……成形品、36……クラツクである。
Fig. 1 is a sectional view showing the configuration of an embodiment of the injection molding mold according to this invention; Fig. 2 is a perspective view showing a part of the movable mold taken out to show the shape of the submarine gate; The figure is a sectional view showing the injection mold filled with molten resin; Figure 4 is a sectional view showing the initial state of the molded product being released after the movable mold has been moved; A sectional view showing a state in which the molded product is cut from the solidified resin at the submarine gate by a cutting blade after the mold operation has progressed; FIGS. 6A and 6B are perspective views showing the first modification of this embodiment, respectively. Figures and sectional views; Figures 7A and 7B are perspective views and sectional views respectively showing a second modification of this embodiment; Figures 8A and 8B are a third modification of this embodiment; A perspective view and a sectional view showing respectively;
Fig. 9 is a sectional view showing the shape of a conventional submarine gate; Fig. 10 is a sectional view showing the initial state of a molded product when it is released from the mold in an injection mold equipped with a conventional submarine gate; and Fig. 11. is a cross-sectional view showing the occurrence of chips during mold release in a conventional injection mold equipped with a submarine gate. In the figure, 10... injection mold, 12... fixed die, 14... movable die, 16... cavity, 1
8...Ranna, 20...Submarine Gate, 22
. . . Cutting blade, 24 . . . Flat surface, 26 . . . Opening, 28, 30 .
Claims (1)
して、溶融樹脂をランナからキヤビテイ内に流し
出すと共に、サブマリンゲートとキヤビテイとの
接合部において切刃を構成するようにした射出成
形金型において、 前記サブマリンゲートのキヤビテイ側端部の、
前記切刃に対向する部分には、切刃の先端を含む
サブマリンゲートの最小断面積がキヤビテイへの
開口面に現われるように設定したフラツト面が設
けられている事を特徴とした射出成形金型。 (2) 前記フラツト面は、キヤビテイの側面に対
して直立している事を特徴とする実用新案登録請
求の範囲第1項に記載の射出成形金型。 (3) 前記フラツト面のキヤビテイ側端部には、
突起部が設けられている事を特徴とする実用新案
登録請求の範囲第1項に記載の射出成形金型。 (4) 前記突起部はキヤビテイ側の端縁の中央部
に設けられている事を特徴とする実用新案登録請
求の範囲第3項に記載の射出成形金型。 (5) 前記突起部はキヤビテイ側の端縁に沿つて
全長に渡つて配設されている事を特徴とする実用
新案登録請求の範囲第3項に記載の射出成形金型
。 (6) 前記突起部はキヤビテイ内に突き出た突出
部を備えている事を特徴とする実用新案登録請求
の範囲第3項に記載の射出成形金型。 (7) 前記突出部は丸味が付けられている事を特
徴とする実用新案登録請求の範囲第6項に記載の
射出成形金型。[Scope of Claim for Utility Model Registration] (1) Molten resin is flowed from the runner into the cavity through a submarine gate formed in a movable mold, and a cutting edge is formed at the joint between the submarine gate and the cavity. In the injection mold, the cavity side end of the submarine gate,
An injection molding mold characterized in that a portion facing the cutting blade is provided with a flat surface set so that the minimum cross-sectional area of the submarine gate including the tip of the cutting blade appears on the opening surface to the cavity. . (2) The injection molding mold according to claim 1, wherein the flat surface stands upright with respect to the side surface of the cavity. (3) At the cavity side end of the flat surface,
An injection mold according to claim 1, which is characterized by being provided with a protrusion. (4) The injection mold according to claim 3, wherein the protrusion is provided at the center of the edge on the cavity side. (5) The injection mold according to claim 3, wherein the protrusion is disposed along the entire length of the edge on the cavity side. (6) The injection mold according to claim 3, wherein the protrusion includes a protrusion that protrudes into the cavity. (7) The injection mold according to claim 6, wherein the protruding portion is rounded.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986190479U JPH0346895Y2 (en) | 1986-12-12 | 1986-12-12 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986190479U JPH0346895Y2 (en) | 1986-12-12 | 1986-12-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6394711U true JPS6394711U (en) | 1988-06-18 |
JPH0346895Y2 JPH0346895Y2 (en) | 1991-10-04 |
Family
ID=31143736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1986190479U Expired JPH0346895Y2 (en) | 1986-12-12 | 1986-12-12 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0346895Y2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60171318U (en) * | 1984-04-20 | 1985-11-13 | 株式会社日立製作所 | injection mold |
JPS61105123U (en) * | 1984-12-17 | 1986-07-04 | ||
JPS61188812U (en) * | 1985-05-20 | 1986-11-25 |
-
1986
- 1986-12-12 JP JP1986190479U patent/JPH0346895Y2/ja not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60171318U (en) * | 1984-04-20 | 1985-11-13 | 株式会社日立製作所 | injection mold |
JPS61105123U (en) * | 1984-12-17 | 1986-07-04 | ||
JPS61188812U (en) * | 1985-05-20 | 1986-11-25 |
Also Published As
Publication number | Publication date |
---|---|
JPH0346895Y2 (en) | 1991-10-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6394711U (en) | ||
JPS6394712U (en) | ||
JPH0544112Y2 (en) | ||
JPH028739Y2 (en) | ||
JPH01115518U (en) | ||
JPH049150Y2 (en) | ||
JPH0323417U (en) | ||
JP2524212Y2 (en) | Injection mold | |
JP2565288Y2 (en) | Gate groove structure in resin mold | |
JPS6410322U (en) | ||
JPH0364727U (en) | ||
JPS595558Y2 (en) | molding mold | |
JPS61133324U (en) | ||
JPS5839875Y2 (en) | Mold for molding the plastic wings of the slide fastener body | |
JPS63100214U (en) | ||
JPH01115522U (en) | ||
JPH03103723U (en) | ||
JPS642039U (en) | ||
JPS62166637U (en) | ||
JPH01174120U (en) | ||
JPH0350418U (en) | ||
JPH0350415U (en) | ||
JPS5858527U (en) | Gate cutting structure in insert molding mold | |
JPS61118709U (en) | ||
JPS6170017U (en) |