Press and delivery system for a press

B - Operations – Transporting – 30 – B

Patent

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Details

B30B 15/30 (2006.01) B23P 19/00 (2006.01) B23P 19/06 (2006.01)

Patent

CA 2394461

A press has a bush (56) set in a cylinder (54) which may then be rotated to position a stud (14) over a sheet of metal into which it is to be inserted. The cylinder is then lowered to insert and fix the stud in place. In a stud delivery system, studs (14) are fed through a delivery tube (12) shank first into a breech (20) in which a pair of pivoted members (24, 26) form a half barrel. The pivoted members (24, 26) are biased towards each other and their ends remote from the delivery tube (12) are shaped to form a conical aperture (34). A thrust member (38) can push a stud (14) along the breech (20) so that the stud tip passes into the tapered aperture (34), the stud shaft then being horizontal. As the stud is pushed further along the breech, passage of the stud head (18) through the tapered aperture (34) forces the pivoted members (24, 26) apart. After passage of the head (18), the pivot members (24, 26) return to their former position.

Selon l'invention, une presse comporte une douille (56) montée dans un cylindre (54) que l'on peut faire pivoter pour placer un goujon (14) au-dessus d'une feuille de métal dans laquelle il doit être inséré. On abaisse ensuite le cylindre pour insérer le goujon et le fixer en place. Dans un système d'alimentation de goujons, les goujons (14) sont alimentés à travers un tige d'un tube d'alimentation (12) dans une première culasse (20) à l'intérieur de laquelle une paire d'éléments pivotants (24, 26) forment un semi-cylindre. Les éléments pivotants (24, 26) sont pressés l'un contre l'autre, et leurs extrémités distantes du tube d'alimentation (12) sont usinées de manière à former une ouverture conique (34). Un élément de pression (38) peut pousser un goujon (14) le long de la culasse (20) de manière à ce que la pointe du goujon rentre dans l'ouverture conique (34), la tige du goujon étant en position horizontale. A mesure qu'on fait avancer le goujon le long de la culasse, le passage de la tête (18) du goujon à travers l'ouverture conique (34) écarte les éléments pivotants (24, 26). Après le passage de la tête (18), les éléments pivotants (24, 26) se remettent à leur place.

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