Metal deforming – By relatively movable offset tool-faces – Plural
Patent
1990-09-28
1992-06-02
Jones, David
Metal deforming
By relatively movable offset tool-faces
Plural
72 10, 72389, 72420, 72461, B21D 504
Patent
active
051176700
ABSTRACT:
A press brake system for bending, flanging, folding and forming an elongate and curved worksheet, and a worksheet handling device for handling such a worksheet are disclosed. The press brake system includes a press brake including a punch and a matrix which cooperate along a bending line in a working plane, and members for straightening an elongate and curved worksheet. The worksheet handling device includes members for straightening an elongate and curved worksheet. Such straightening members include: forcing members for applying force to the worksheet at central portion or end portions of a longitudinal edge, the force being in a direction perpendicular to the bending line and within a loading plane; and fixing members for fixing the worksheet so that it can not move against the force. This design enables the system to carry out appropriate bending or flanging to obtain a work with flanges of constant width along bending lines.
REFERENCES:
patent: 3908435 (1975-09-01), Bowman, Jr. et al.
patent: 4426873 (1984-01-01), Pearson et al.
patent: 4986101 (1991-01-01), Starner
patent: 5042287 (1991-08-01), Sartorio
Amada Company Limited
Jones David
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