JPH0476412U

JPH0476412U -

Info

Publication number: JPH0476412U
Application number: JP11950290U
Authority: JP
Priority date: 1990-11-15
Filing date: 1990-11-15
Publication date: 1992-07-03

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係る成形型の要部
断面図、第２図は第１図の成形型により成形され
る成形品の要部断面図、第３図は第１図の上型の
要部底面図、第４図は第３図のＥ−Ｅ線断面図、
第５図は第１図の成形型の加圧時の縦断面図、第
６図は従来の成形型の要部縦断面図、第７図は第
６図の成形型の成形途中の状態の要部縦断面図、
第８図は第７図の加圧時の変形状態を示す要部断
面図、第９図は従来の変形した成形品の要部縦断
面図である。符号の説明、１……上型、２……下型、３……
金属環（インサート部材）、４……Ｓ型、５……
成形材料、６……凹部、７……凸部、８……段部
、１０……成形型、１１……中央突出部、２０…
…成形品、２１……凹部、２２……段凸部、３１
……フランジ、３２……小径部、３３……大径部
。 Fig. 1 is a sectional view of a main part of a mold according to an embodiment of the present invention, Fig. 2 is a sectional view of a main part of a molded product formed by the mold of Fig. 1, and Fig. A bottom view of the main parts of the upper mold, Figure 4 is a sectional view taken along the line E-E in Figure 3,
Figure 5 is a vertical cross-sectional view of the mold shown in Figure 1 when pressurized, Figure 6 is a vertical cross-sectional view of the main part of a conventional mold, and Figure 7 is a view of the mold shown in Figure 6 in the middle of molding. Main part longitudinal sectional view,
FIG. 8 is a cross-sectional view of a main part showing a deformed state during pressurization in FIG. 7, and FIG. 9 is a longitudinal cross-sectional view of a main part of a conventional deformed molded product. Explanation of symbols, 1...upper mold, 2...lower mold, 3...
Metal ring (insert member), 4...S type, 5...
Molding material, 6... Concave portion, 7... Convex portion, 8... Step portion, 10... Molding mold, 11... Central protrusion, 20...
... Molded product, 21 ... Concave portion, 22 ... Step convex portion, 31
...Flange, 32...Small diameter part, 33...Large diameter part.

Claims

[Claim for Utility Model Registration] An annular insert member is inserted into the recess of the lower mold, a stepped portion is formed in the middle of the insert member with a smaller diameter on the distal end side in the insertion direction, and the inner periphery of the recess of the lower mold is In a mold in which a stepped convex portion abutting the outer periphery of the stepped portion is provided, and an upper mold is inserted into the inner peripheral side of the insert member, a plurality of convex portions extending along the insertion direction are provided on the outer peripheral surface of the upper mold in the circumferential direction. The outer circumference of the protrusion is brought into contact with the inner circumference of the insert member to serve as a guide for the insert member, and the tip end of the protrusion in the insertion direction is brought into contact with the inner circumference of the step of the insert member. Molding mold.