JPS6159017U - - Google Patents

Info

Publication number
JPS6159017U
JPS6159017U JP14227284U JP14227284U JPS6159017U JP S6159017 U JPS6159017 U JP S6159017U JP 14227284 U JP14227284 U JP 14227284U JP 14227284 U JP14227284 U JP 14227284U JP S6159017 U JPS6159017 U JP S6159017U
Authority
JP
Japan
Prior art keywords
gate
spool
core die
molding
die
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
Application number
JP14227284U
Other languages
Japanese (ja)
Other versions
JPH034501Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1984142272U priority Critical patent/JPH034501Y2/ja
Publication of JPS6159017U publication Critical patent/JPS6159017U/ja
Application granted granted Critical
Publication of JPH034501Y2 publication Critical patent/JPH034501Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は一次成形品の一例を示す断面斜視図、
第2図は本考案が適用された射出成形装置の全体
側面図、第3図は型閉めかつゲートブロツクが成
形位置にあるときの要部断面図、第4図は第3図
の要部拡大断面図、第5図は型開きされかつゲー
トブロツクが退避位置へ向けて変位している様子
を示す第4図に対応した部分の拡大断面図。 A:一次成形品、1:製品部、2:ゲート部、
3:ランナ部、4:スプール部、13:固定キヤ
ビテイダイ、14:コアダイ、14b:ゲート部
成形面、15:キヤビテイ、16:ゲートブロツ
ク、16a:端面成形面、16b:ゲート部成形
面、17:ガイドロツド、19:フイルムゲート
、20:アンダーカツト、21,22:ランナ、
23:スプール、24:(先行)エジエクタピン
、25:(後行)エジエクタピン。
FIG. 1 is a cross-sectional perspective view showing an example of a primary molded product;
Figure 2 is an overall side view of the injection molding apparatus to which the present invention is applied, Figure 3 is a sectional view of the main parts when the mold is closed and the gate block is in the molding position, and Figure 4 is an enlarged view of the main parts of Figure 3. 5 is an enlarged sectional view of a portion corresponding to FIG. 4 showing the mold being opened and the gate block being displaced toward the retracted position; FIG. A: Primary molded product, 1: Product section, 2: Gate section,
3: Runner part, 4: Spool part, 13: Fixed cavity die, 14: Core die, 14b: Gate part molding surface, 15: Cavity, 16: Gate block, 16a: End face molding surface, 16b: Gate part molding surface, 17: Guide rod, 19: Film gate, 20: Undercut, 21, 22: Runner,
23: Spool, 24: (leading) ejector pin, 25: (trailing) ejector pin.

Claims (1)

【実用新案登録請求の範囲】 固定キヤビテイダイと該固定キヤビテイダイに
対して前後進可能とされて該固定キヤビテイダイ
と協働して開閉可能な成形型を構成するコアダイ
とを備え、前記コアダイが前進して型閉めされた
成形型内のキヤビテイに、スプール、ランナ、フ
イルムゲートを介して樹脂を射出することにより
、前記キヤビテイに対応した製品部に対して前記
フイルムゲートに対応したゲート部と前記ランナ
に対応したランナ部と前記スプールに対応したス
プール部とが順次連設された一次成形品が成形さ
れるようにしたものにおいて、 前記コアダイには、該コアダイの前進方向の移
動軸線に対して外方に傾斜する傾斜軸線に沿つて
移動自在なゲートブロツクが保持されて、該ゲー
トブロツクは、その移動に応じて成形位置と該成
形位置よりも前方かつ外方に位置する退避位置と
をりとり得るようにされ、 前記ゲートブロツクは、前記成形位置にあると
きに、その前面が前記製品部の端面を成形する端
面成形面を構成すると共に、前記コアダイ側面に
対向する側の面が前記ゲート部を成形するゲート
部成形面として構成され、 前記ゲート部を成形する前記コアダイの側面に
は、前記製品部の端面近傍においてアンダーカツ
トが形成され、 前記ゲートブロツクを前記退避位置へ押し出す
先行エジエクタピン、および該先行エジエクタピ
ンより所定ストローク遅れて前記ランナ部を押し
出す後行エジエクタピンが設けられている、 ことを特徴とする射出成形におけるゲート自動切
断装置。
[Claims for Utility Model Registration] A fixed cavity die and a core die that is movable back and forth with respect to the fixed cavity die and forms a mold that can be opened and closed in cooperation with the fixed cavity die, and when the core die moves forward. By injecting resin into the cavity in the closed mold through the spool, runner, and film gate, the product part corresponding to the cavity is made to correspond to the gate part corresponding to the film gate and the runner. A primary molded product is formed in which a runner portion corresponding to the spool and a spool portion corresponding to the spool are sequentially arranged, and the core die has a spool portion extending outwardly from the axis of movement in the forward direction of the core die. A gate block is held that is movable along an inclined axis of inclination, and the gate block can change between a molding position and a retracted position located forward and outward from the molding position according to the movement of the gate block. When the gate block is in the molding position, a front surface thereof constitutes an end surface molding surface for molding the end surface of the product part, and a surface facing the side surface of the core die molds the gate part. A side surface of the core die that molds the gate part is formed with an undercut near an end surface of the product part, and a leading ejector pin that pushes out the gate block to the retracted position; An automatic gate cutting device for injection molding, comprising: a trailing ejector pin that pushes out the runner portion with a predetermined stroke delay from the ejector pin.
JP1984142272U 1984-09-21 1984-09-21 Expired JPH034501Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1984142272U JPH034501Y2 (en) 1984-09-21 1984-09-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984142272U JPH034501Y2 (en) 1984-09-21 1984-09-21

Publications (2)

Publication Number Publication Date
JPS6159017U true JPS6159017U (en) 1986-04-21
JPH034501Y2 JPH034501Y2 (en) 1991-02-06

Family

ID=30700597

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984142272U Expired JPH034501Y2 (en) 1984-09-21 1984-09-21

Country Status (1)

Country Link
JP (1) JPH034501Y2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59171632A (en) * 1983-03-18 1984-09-28 Kojima Press Co Ltd Gate cutting mechanism for force of resin molding

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59171632A (en) * 1983-03-18 1984-09-28 Kojima Press Co Ltd Gate cutting mechanism for force of resin molding

Also Published As

Publication number Publication date
JPH034501Y2 (en) 1991-02-06

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