JPS62128819U

JPS62128819U -

Info

Publication number: JPS62128819U
Application number: JP1607686U
Authority: JP
Priority date: 1986-02-06
Filing date: 1986-02-06
Publication date: 1987-08-14

Description

[Brief explanation of the drawing]

第１図ないし第４図は本考案の１実施例を示す
図で、第１図は固定金型とコア金型が閉じ状態に
ある図。第２図は成形品のアンダカツトＡを外し
た時の図。第３図は成形品のアンダカツトＢを外
した時の図。第４図は、成形品が金型から取出し
可能状態となつた図。第５図および第６図は従来
金型を示す図で第５図は閉じ状態を示す図。第６
図は開き状態を示す図。１２……コア金型、１３，１４……傾斜ブロツ
ク、１５……成形品、１６……傾斜面、１９……
ガイドピン、２０……ガイドプレート、２３……
案内溝、２４……押出ピン。 1 to 4 are diagrams showing one embodiment of the present invention, and FIG. 1 is a diagram in which the fixed mold and the core mold are in a closed state. Figure 2 shows the molded product with undercut A removed. Figure 3 is a view of the molded product with undercut B removed. FIG. 4 is a diagram showing the molded product ready to be removed from the mold. 5 and 6 are views showing a conventional mold, and FIG. 5 is a view showing a closed state. 6th
The figure shows the open state. 12... Core mold, 13, 14... Inclined block, 15... Molded product, 16... Inclined surface, 19...
Guide pin, 20... Guide plate, 23...
Guide groove, 24...extrusion pin.

Claims

[Scope of Claim for Utility Model Registration] A fixed mold, an inclined block that, when moved forward and backward with respect to the fixed mold and comes into contact with the mold joint surface, forms an undercut A with respect to the mold opening direction, and a tilted block with respect to the mold opening direction. In a mold for a molded product having an undercut on the inside, which is composed of a core mold that forms the cavity of the molded product in cooperation with an inclined block that forms an undercut B in the right angle direction, a. A core mold having an inclined surface and a guide hole parallel to the same inclined surface; b. A slidable guide pin, which will be described later, is fitted into the guide hole parallel to the inclined surface of the core mold, and the core mold is The core mold is slidably engaged along the inclined surface, and when the molded product is pulled out from the fixed mold to a predetermined position by the core mold when the mold is opened, the core mold retreats from the fixed mold. c. an inclined block that slides along the inclined surface of the core mold and the guide hole to a position where the undercut A is removed by operation; c. is fixed to the core mold and forms an undercut B to be described later; The inclined block is moved in the mold opening direction from the start of mold opening until the inclined block for undercut A comes to the position where undercut A is removed, and then moved to a position to avoid interference when extracting the molded product from the inside of the core mold. A guide plate d is provided with a groove that guides the molded product inwardly during mold opening. Despite the retreat of the core mold, the undercut B remains at the predetermined position along with the molded product until it is removed from the inclined block, and then the undercut B is removed by the extrusion pin described later. After that, when the core mold is pulled out from the molded product side, an inclined block e forming an undercut B moves to a position where it avoids interference with the undercut A. When the mold is opened, the molded product is pulled by the core mold to a predetermined position. When pulled out from the fixed mold,
An extrusion pin f that thrusts the molded product in the opposite direction to the mold opening direction and projects the undercut B from the inclined block for the undercut B. The extrusion pin f is fixed to the inclined block for the undercut A and is slidably fitted into the guide hole of the core mold. It is characterized by having a guide pin that pushes up the inclined block for undercut B over the inclined block for undercut A and moves it to a position where interference with the undercut A is avoided after the extrusion pin removes the undercut B. Mold for plastic molded products.