JPH0357422U

JPH0357422U -

Info

Publication number: JPH0357422U
Application number: JP11714089U
Authority: JP
Priority date: 1989-10-06
Filing date: 1989-10-06
Publication date: 1991-06-03
Anticipated expiration: 2004-10-06
Also published as: JPH0744338Y2

Description

[Brief explanation of drawings]

第１図は、本考案のプレス型の要部断面図、第
２図は第１図のＩ−Ｉ線に沿う断面図、第３図は
本考案の曲げ刃を示す要部斜視図、第４図は同じ
く本考案の曲げ刃収容部を示す要部斜視図、第５
図は同じく本考案の曲げ刃と曲げ刃収容部の下死
点位置の拡大断面説明図、第６図は本考案のプレ
ス型によつて成形される製品の説明斜視図、第７
図乃至第９図はそれぞれ従来例の説明図である。１……下型、１ａ……凸条部、２……上型、２
ａ……凹条部、３……ブランクホルダ、３ａ……
凹部、５……曲げ刃、５ａ……段部、６……曲げ
刃収容部、６ａ……段差部。 Fig. 1 is a cross-sectional view of the main parts of the press die of the present invention, Fig. 2 is a cross-sectional view taken along line I-I in Fig. 1, and Fig. 3 is a perspective view of the main parts showing the bending blade of the present invention. Figure 4 is a perspective view of the main part showing the bending blade accommodating part of the present invention, and Figure 5 is
The figures are also an enlarged sectional explanatory view of the bending blade of the present invention and the bottom dead center position of the bending blade accommodating part, Fig. 6 is an explanatory perspective view of the product formed by the press die of the present invention, and Fig. 7
9 to 9 are explanatory diagrams of conventional examples, respectively. 1...Lower mold, 1a...Convex strip, 2...Upper mold, 2
a... Concave portion, 3... Blank holder, 3a...
Recessed portion, 5...bending blade, 5a...stepped portion, 6...bending blade accommodating portion, 6a...stepped portion.

Claims

[Scope of Claim for Utility Model Registration] (1) A lower die having a protruding strip, and an upper die having a concave strip opposite to the protruding strip of the lower die, and which press-forms a workpiece in cooperation with the lower die. and a blank holder, which has a concave portion facing the convex portion formed on the lower mold, and which holds the work together with the lower mold prior to lowering of the upper mold, and has the convex portion. In a press mold for manufacturing a molded product, the workpiece is held at the top of the concave part of the blank holder in cooperation with a bending blade accommodating part formed at the end of the convex strip of the lower mold, prior to the clamping of the edge of the workpiece between the blank holder and the lower mold. A press mold characterized by being provided with a bending blade for bending the end portion of the protruding strip. (2) The bending blade is a columnar body with a semicylindrical cross section;
It has a stepped part near the attachment part with the blank holder,
2. The press mold according to claim 1, wherein the bending blade accommodating part is a recessed part having a U-shaped cross section for accommodating the bending blade, and has a step part facing the step part at the bottom dead center position of the blank holder.