Sequential forming device

Details Sequential forming device Sequential forming device

B - Operations, Transporting

21

D

B21D 22/18 (2006.01) B21D 22/10 (2006.01) B21D 22/14 (2006.01)

Patent

CA 2446948

A sheet (10) is placed on a support frame (11) and clamped around its periphery by a clamp (12), and a recessed lower pressing member (13) is lifted from below. The lower pressing member (13) is formed with a forming recessed portion (15) and a forming raised portion (16). Disposed above the sheet (10) is a bar-like upper pressing member (20), which is lowered to press against the sheet (10), and the sheet (10) is lifted together with the lower pressing member (13) and moved in the XY direction, thereby forming a raised portion (17) and a raised portion (18) in the forming recessed portion (15) and the forming raised portion (16). The upper pressing member (20) has a hard rigid main body (21) and a flexible member (22). The flexible member (22) is in the form of a hemisphere made of a material, such as rigid polyurethane, that is more elastic than the main body (21), and comes in spherical contact with the sheet (10).

Une tôle (10) est placée sur un cadre de support (11) et est serrée autour de sa périphérie par un organe de serrage (12), et un élément de pression inférieur évidé (13) est soulevé depuis une position sous-jacente. L'élément de pression inférieure (13) présente une partie de formage évidé (15) et une partie de formage saillante (16). Au-dessus de la tôle (10) est disposé un élément de pression supérieur (20) en forme de barre, lequel est abaissé afin d'exercer une pression contre la tôle (10),et la tôle (10) est soulevée en même temps que l'élément de pression inférieur (13) et déplacée dans les sens XY formant ainsi une partie saillante (17) et une partie saillante (18) dans la partie de formage évidée (15) et la partie de formage saillante (16). L'élément de pression supérieur (20) présente un corps principal dur rigide (21) et un élément flexible (22). L'élément flexible (22) se présente sous la forme d'une hémisphère composée d'un matériau tel que du polyuréthanne rigide, plus élastique que le corps principal (21) et il vient en contact sphérique avec la tôle (10).

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