JPS5997009U - Undercut molding device for synthetic resin molds - Google Patents

Undercut molding device for synthetic resin molds

Info

Publication number
JPS5997009U
JPS5997009U JP19759782U JP19759782U JPS5997009U JP S5997009 U JPS5997009 U JP S5997009U JP 19759782 U JP19759782 U JP 19759782U JP 19759782 U JP19759782 U JP 19759782U JP S5997009 U JPS5997009 U JP S5997009U
Authority
JP
Japan
Prior art keywords
synthetic resin
boss portion
undercut
base surface
pin
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
JP19759782U
Other languages
Japanese (ja)
Other versions
JPS6212575Y2 (en
Inventor
謙治 野口
Original Assignee
トヨタ自動車株式会社
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 by トヨタ自動車株式会社 filed Critical トヨタ自動車株式会社
Priority to JP19759782U priority Critical patent/JPS5997009U/en
Publication of JPS5997009U publication Critical patent/JPS5997009U/en
Application granted granted Critical
Publication of JPS6212575Y2 publication Critical patent/JPS6212575Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第1図は、本考案装置を用いて成形した成形品の1例を
反転させて示した斜面図、第2図は実施の1例を型開き
直後の状態で示した縦断面図、第3図は第2図中■−■
線断面図、第4薗はエゼクタプレートの進出初期の時点
における第2図と同様の縦断面図、第5図は第4図中■
−■線断面図、第6図はエゼクタプレートが更に進出し
た時点における第2図と同様の縦断面図、第7図は第6
図中■−■線断面図、第8図はエゼクタプレートの′ 
進中終期における第2図と同様の縦断面図、第9図は第
8図中IX−IX線断面図、第10図は第1図に示すも
のの縦断面図、第11図は従来方法によつぞ成形された
成形品の縦断面図である。 1:ボス部、2.3.4:補強リブ、5:基体、  ゛
6:基体の表面、7:ボス部端面、8:アンダカット部
、9:可動金型、10. 11. 12. 13:キャ
ビティ、14:エゼクタビン、15:ピン溝、19:入
子、26. 27:螺旋溝、28. 29:突子。  
   ・8  30  5 \B
Fig. 1 is an inverted perspective view of an example of a molded product molded using the device of the present invention, Fig. 2 is a vertical cross-sectional view of an example of the embodiment immediately after opening the mold, and Fig. 3 The figure is in Figure 2 ■-■
Linear cross-sectional view, No. 4 is a longitudinal cross-sectional view similar to that in Fig. 2 at the initial stage of ejector plate advancement, and Fig. 5 is the same as ■ in Fig. 4.
-■ line sectional view, Figure 6 is a longitudinal sectional view similar to Figure 2 at the time when the ejector plate has advanced further, and Figure 7 is the 6th line sectional view.
The sectional view taken along the line ■-■ in the figure, and Figure 8 is the
9 is a sectional view taken along the line IX-IX in FIG. 8, FIG. 10 is a longitudinal sectional view of the same as shown in FIG. FIG. 3 is a vertical cross-sectional view of a molded product. 1: Boss portion, 2.3.4: Reinforcing rib, 5: Base body, ゛6: Surface of base body, 7: End face of boss portion, 8: Undercut portion, 9: Movable mold, 10. 11. 12. 13: cavity, 14: ejector bin, 15: pin groove, 19: insert, 26. 27: Spiral groove, 28. 29: Tsuko.
・8 30 5 \B

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ボス部が、該ボス部外周面から張り出し形成された複数
の補強リブを介して基体表面に連接されており、ボス部
端面と基体表面との間に間隔部tコるアンダカット部が
形成されている合成樹脂成形品を成形すべき、可動金型
キ固定金型とよりなる合成樹脂成形金型において、可動
金型に、前記補強リブとボス部との成形用のキャビティ
が形成されており、可動金型に貫設されたピン溝を貫通
する一エゼクタピンに、前記ボス部端面と基体表面との
間のアンダカット部を形成すべき入子が固着されている
と共に、前記可動金型のピン溝とエゼクタビンとの間に
は、エゼクタビンの進出時に、該ピンに回動運動を与え
うる回動機構が付設されていることを特徴とする合成樹
脂成形金型におけるアンダカット部成形装置。    
 2
The boss portion is connected to the base surface through a plurality of reinforcing ribs extending from the outer circumferential surface of the boss portion, and an undercut portion having a gap t is formed between the end face of the boss portion and the base surface. In a synthetic resin molding mold consisting of a movable mold and a fixed mold, in which a synthetic resin molded product is to be molded, a cavity for molding the reinforcing ribs and the boss portion is formed in the movable mold. , an insert for forming an undercut between the end face of the boss portion and the base surface is fixed to one ejector pin that passes through a pin groove provided through the movable mold; 1. A device for forming an undercut portion in a synthetic resin molding die, characterized in that a rotation mechanism is provided between the pin groove and the ejector bin to provide rotational movement to the pin when the ejector bin advances.
2
JP19759782U 1982-12-22 1982-12-22 Undercut molding device for synthetic resin molds Granted JPS5997009U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19759782U JPS5997009U (en) 1982-12-22 1982-12-22 Undercut molding device for synthetic resin molds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19759782U JPS5997009U (en) 1982-12-22 1982-12-22 Undercut molding device for synthetic resin molds

Publications (2)

Publication Number Publication Date
JPS5997009U true JPS5997009U (en) 1984-06-30
JPS6212575Y2 JPS6212575Y2 (en) 1987-04-01

Family

ID=30423027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19759782U Granted JPS5997009U (en) 1982-12-22 1982-12-22 Undercut molding device for synthetic resin molds

Country Status (1)

Country Link
JP (1) JPS5997009U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013114771A1 (en) * 2012-01-31 2013-08-08 株式会社テクノクラーツ Molding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013114771A1 (en) * 2012-01-31 2013-08-08 株式会社テクノクラーツ Molding

Also Published As

Publication number Publication date
JPS6212575Y2 (en) 1987-04-01

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