JPH0430920U

JPH0430920U -

Info

Publication number: JPH0430920U
Application number: JP7349290U
Authority: JP
Priority date: 1990-07-10
Filing date: 1990-07-10
Publication date: 1992-03-12

Description

[Brief explanation of the drawing]

第１図は本考案の樹脂成形金型の１実施例を示
す断面説明図、第２図は同実施例における要部拡
大断面図、第３図は同実施例における要部の分解
状態を示す斜視図、第４図は冷却用コアの他の実
施例を示す斜視図、第５図は本考案の樹脂成形金
型の他の実施例を示す断面説明図、第６図は樹脂
磁石製ロータの断面図、第７図は従来の樹脂成形
金型を示す断面説明図である。Ａ……マグネツトロータ、ａ……ロータマグネ
ツト、ｂ……シヤフト、ｃ……ボス部、ｄ……外
周部、ｅ……凹陥部、ｆ……入駒、ｇ……コア、
ｈ……可動側型板、ｉ……ゲート駒、ｊ……固定
側型板、ｋ……キヤビテイ、ｌ……シヤフト挿通
孔、ｍ……環状突部、１……入駒、２……コア、
３……可動側型板、４……ゲート駒、５……固定
側型板、６……エジエクタピン、７……受け板、
８……スペーサブロツク、９……エジエクタプレ
ート、１０……可動側取付板、１１……ストリツ
パプレート、１２……固定側取付板、１３……コ
ア本体、１４……冷却用コア、１５……環状突部
、１６……凹部、１７……冷却孔、１８……シヤ
フト挿通孔、１９……基台プレート、２０……冷
却杆、２１ａ，２１ｂ……エジエクタピン挿通孔
、２２……放熱面、２３……キヤビテイ、２４…
…シヤフト突き出しピン。 Fig. 1 is an explanatory cross-sectional view showing one embodiment of the resin molding mold of the present invention, Fig. 2 is an enlarged sectional view of the main parts of the same embodiment, and Fig. 3 is an exploded state of the main parts of the same embodiment. 4 is a perspective view showing another embodiment of the cooling core, FIG. 5 is a sectional explanatory view showing another embodiment of the resin molding mold of the present invention, and FIG. 6 is a rotor made of resin magnets. FIG. 7 is an explanatory cross-sectional view showing a conventional resin molding die. A... Magnet rotor, a... Rotor magnet, b... Shaft, c... Boss portion, d... Outer circumferential portion, e... Concave portion, f... Insertion piece, g... Core,
h...Movable side template, i...Gate piece, j...Fixed side template, k...Cavity, l...Shaft insertion hole, m...Annular protrusion, 1...Enter piece, 2... core,
3...Movable side template, 4...Gate piece, 5...Fixed side template, 6...Ejector pin, 7...Receiver plate,
8... Spacer block, 9... Ejector plate, 10... Movable side mounting plate, 11... Stripper plate, 12... Fixed side mounting plate, 13... Core body, 14... Cooling core, 15... Annular protrusion, 16... Recess, 17... Cooling hole, 18... Shaft insertion hole, 19... Base plate, 20... Cooling rod, 21a, 21b... Ejector pin insertion hole, 22... Heat dissipation surface, 23... Cavity, 24...
...Shaft ejector pin.

Claims

[Scope of Claim for Utility Model Registration] 1. In a resin molding mold where a part of the core becomes hotter than other parts of the mold during injection, from the part of the core where heat is likely to accumulate to the appropriate place on the outer surface of the core. A resin molding mold characterized in that a cooling core made of a material with good heat conduction is installed inside the part, and one end surface of the cooling core exposed on the outer surface of the core serves as a heat radiation surface. 2. The resin molding mold according to claim 1, wherein one end surface of the cooling core serving as a heat dissipation surface is brought into contact with the surface of the receiving plate of the movable mold plate. 3. The resin molding die according to claim 1, wherein the cooling core is provided with one end passing through the receiving plate of the movable mold plate, and one end surface of the cooling core is brought into contact with the outside air. 4. The resin molding mold according to any one of claims 1 to 3, wherein cooling fins are formed on the heat radiation surface of the cooling core. 5. The resin molding mold according to any one of claims 1 to 4, which is a resin molded product in which a concave portion is formed from a proper position on the surface toward a deep inner part. 6. The resin molding mold according to any one of claims 1 to 4, wherein the resin molding mold is a rotor made of a resin magnet in which a concave portion extending toward a deep inner portion is formed on the outer periphery of the boss portion.