Antiflexion profiling head and profiling machine equipped...

B - Operations – Transporting – 21 – D

Patent

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B21D 5/08 (2006.01) B21B 13/14 (2006.01) B21B 29/00 (2006.01) B21B 31/18 (2006.01) B21B 31/22 (2006.01) B21B 37/38 (2006.01) B21D 5/14 (2006.01)

Patent

CA 2670441

The use of shafts with reduced diameters in the profiling heads leads to flexion and detuning. Furthermore, the runout of the shafts can cause ejection of the shafts. In order to overcome these problems, the invention proposes to integrate the tuning of the shafts and shaping means through anti-flexion means. A profiling head (1) of a profiling machine comprises at least one shaping cassette (2) containing a set of two parallel shafts (20, 30) on which rollers (201 to 217; 301 to 310) separated by struts (200; 300) are mounted in order to for a rolling tool, and a frame having vertical posts (41, 51) supporting the shafts (20, 30) and a base (60), the posts being provided with vertical adjustment means (44 to 46; 54 to 56). According to the invention, the head also comprises tool alignment (61, 71) adjustment means, mounted laterally on each shaft (20, 30) linked (4, 5) with at least one vertical post (51), and anti-flexion adjustment members (90, 91) mounted substantially in a central position of each shaft (20, 30) linked (4, 5) with the base (60) and an adjustment beam (80) mounted on the vertical posts (41, 51) of the frame parallel to the shafts (20, 30). <0}

L'utilisation d'arbres de diamètre réduit dans les têtes de profilage entraîne des problèmes de flexion et de déréglage. De plus le faux-rond des arbres peut provoquer leur éjection. Pour remédier ô ces problèmes, l'invention prévoit de rendre solidaire le réglage des arbres et des moyens de formage par des moyens anti-flexion. Une tête de profilage (1) de machine ô profiler comporte au moins une cassette de formage (2) comprenant un jeu de deux arbres parallèles (20, 30) sur lesquels des galets (201 ô 217; 301 ô 310) séparés par des entretoises (200; 300) sont montés pour former un outillage de roulage, et un châssis comprenant des montants verticaux (41, 51) de support des arbres (20, 30) et une embase (60), lesquels montants sont pourvus de moyens de réglage vertical (44 ô 46; 54 ô 56). Selon l'invention, la tête comporte également des éléments de réglage d'alignement de l'outillage (61, 71), montés latéralement sur chaque arbre (20, 30) en liaison (4, 5) avec au moins un montant vertical (51), et des éléments de réglage anti-flexion (90, 91) montés sensiblement en position centrale de chaque arbre (20, 30) en liaison (4, 5) avec l'embase (60) et une poutre de réglage (80) montée sur les montants verticaux (41, 51) du châssis parallèlement aux arbres (20, 30).

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