JPS62180511U - - Google Patents
Info
- Publication number
- JPS62180511U JPS62180511U JP6858686U JP6858686U JPS62180511U JP S62180511 U JPS62180511 U JP S62180511U JP 6858686 U JP6858686 U JP 6858686U JP 6858686 U JP6858686 U JP 6858686U JP S62180511 U JPS62180511 U JP S62180511U
- Authority
- JP
- Japan
- Prior art keywords
- lower mold
- thickness
- temperature
- mold
- 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 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 description 2
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
第１図は、本考案の一実施例に係る射出成形金
型のフローマーク防止構造の縦断面図、第２図は
、従来の射出成形金型の縦断面図、第３図は、キ
ヤビテイ内においてジエツテイングが発生してい
る射出成形金型の拡大縦断面図、第４図は、フロ
ーマークが出来ている製品の斜視図である。
１……上型、２……下型、４……ゲート、５…
…キヤビテイ、１１……作動ピン、１２……油圧
シリンダ（駆動装置）、４１……温度センサー、
４２……制御装置。
Fig. 1 is a longitudinal sectional view of a flow mark prevention structure of an injection molding mold according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of a conventional injection molding mold, and Fig. 3 is a longitudinal sectional view of the inside of the cavity. FIG. 4 is an enlarged vertical cross-sectional view of an injection mold in which jetting has occurred, and is a perspective view of a product with flow marks. 1... Upper die, 2... Lower die, 4... Gate, 5...
... Cavity, 11... Operating pin, 12... Hydraulic cylinder (drive device), 41... Temperature sensor,
42...control device.
Claims (1)
とも何れか一方の温度を検出して出力する温度セ
ンサーと、該上型と該下型とで形成されるキヤビ
テイの厚さを可変とする作動ピンと、前記温度セ
ンサーの出力信号に応じて該作動ピンを駆動する
駆動装置とから構成されており、前記作動ピンは
ゲート近傍のキヤビテイの厚さを可変とするよう
にされており、前記駆動装置は、下型の温度が低
い場合には前記作動ピンを駆動して前記ゲート近
傍のキヤビテイの厚さを薄くし、下型の温度が高
い場合には前記作動ピンを駆動して前記ゲート近
傍のキヤビテイの厚さを厚くする手段を備えてい
ることを特徴とする射出成形金型のフローマーク
防止構造。 An upper mold, a lower mold, a temperature sensor that detects and outputs the temperature of at least one of the upper mold and the lower mold, and a thickness of a cavity formed by the upper mold and the lower mold. It is composed of a variable actuation pin and a drive device that drives the actuation pin in accordance with the output signal of the temperature sensor, and the actuation pin is configured to make the thickness of the cavity near the gate variable. , the driving device drives the operating pin to reduce the thickness of the cavity near the gate when the temperature of the lower mold is low, and drives the operating pin when the temperature of the lower mold is high. A flow mark prevention structure for an injection mold, comprising means for increasing the thickness of the cavity near the gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6858686U JPH049148Y2 (en) | 1986-05-07 | 1986-05-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6858686U JPH049148Y2 (en) | 1986-05-07 | 1986-05-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62180511U true JPS62180511U (en) | 1987-11-16 |
| JPH049148Y2 JPH049148Y2 (en) | 1992-03-06 |
Family
ID=30908536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6858686U Expired JPH049148Y2 (en) | 1986-05-07 | 1986-05-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH049148Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03227211A (en) * | 1990-01-31 | 1991-10-08 | Toyoda Gosei Co Ltd | Mold for injection molding |
| JP2009235679A (en) * | 2008-03-26 | 2009-10-15 | Mitsubishi Plastics Inc | Catch basin and method of manufacturing the same |
| WO2015045677A1 (en) * | 2013-09-30 | 2015-04-02 | 三菱重工業株式会社 | Injection molding method and injection molding device for transparent resin molded article |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11254457A (en) * | 1998-03-12 | 1999-09-21 | Idemitsu Petrochem Co Ltd | Mold for molding laminated molded article and preparation of laminated molded article |
-
1986
- 1986-05-07 JP JP6858686U patent/JPH049148Y2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03227211A (en) * | 1990-01-31 | 1991-10-08 | Toyoda Gosei Co Ltd | Mold for injection molding |
| JP2009235679A (en) * | 2008-03-26 | 2009-10-15 | Mitsubishi Plastics Inc | Catch basin and method of manufacturing the same |
| WO2015045677A1 (en) * | 2013-09-30 | 2015-04-02 | 三菱重工業株式会社 | Injection molding method and injection molding device for transparent resin molded article |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH049148Y2 (en) | 1992-03-06 |