JPH01143626U

JPH01143626U -

Info

Publication number: JPH01143626U
Application number: JP4143788U
Authority: JP
Priority date: 1988-03-29
Filing date: 1988-03-29
Publication date: 1989-10-02

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す要部断面図、
第２図は第１図の平面説明図、第３図は第１図の
成形品の斜視図、第４図は成形品の一例として自
動車のフロントフロアパネルを示す斜視図、第５
図は従来の絞りプレス装置の要部断面図、第６図
は第５図の平面説明図、第７図は成形不良の発生
を示す説明図、第８図は第７図の各断面線ａ，ｂ
，ｃに対応する断面図である。１…下型としてのダイ、１ａ…下型成形面とし
てのダイフエース、２…ブランクホルダ、２ｂ…
ホールド面、３…ポンチ、４…保持部材としての
ネストブロツク、５…上型、Ａ，Ａ_１…折れ線、
Ｅ_１，Ｅ_２…端部、Ｐ…成形品、Ｑ…縦壁部、Ｗ
…素材。 FIG. 1 is a cross-sectional view of essential parts showing an embodiment of the present invention;
FIG. 2 is a plan view of FIG. 1, FIG. 3 is a perspective view of the molded product shown in FIG. 1, FIG. 4 is a perspective view of a front floor panel of an automobile as an example of the molded product, and FIG.
The figure is a sectional view of a main part of a conventional drawing press device, FIG. 6 is a plan view of FIG. 5, FIG. 7 is an explanatory diagram showing the occurrence of molding defects, and FIG. ,b
, c is a sectional view corresponding to FIG. 1...Die as a lower mold, 1a...Die face as a lower molding surface, 2...Blank holder, 2b...
Holding surface, 3... Punch, 4... Nest block as a holding member, 5... Upper die, A, A ₁ ... Broken line,
E ₁ , E ₂ ... end, P ... molded product, Q ... vertical wall part, W
…material.

Claims

[Scope of utility model registration request]

A device for drawing a molded product having a hat-shaped cross section with a bulging central portion and a vertical wall portion, the device comprising: a lower mold;
a punch that faces the lower mold; a blank holder that constitutes the upper mold together with the punch and pressurizes and restrains the peripheral edge of the material excluding the vertical wall portion in cooperation with the lower mold in advance of the punch; and a lower mold. and a holding member that holds both ends of the vertical wall portion of the material in a direction orthogonal to the longitudinal direction of the material at a position higher than the molding surface of the lower mold portion, at least until the blank holder comes into contact with the material. A drawing press device characterized by: