Gathering and stitching machine

B - Operations – Transporting – 42 – B

Patent

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Details

B42B 4/02 (2006.01)

Patent

CA 2629173

A new gathering and stitching machine (10) and a new method for operating a gathering and stitching machine (1) are proposed, which make it possible to drive in the staples (K) in a positionally correct manner and to close them satisfactorily even in the case of relatively short staple setting times. This is achieved by the novel control of the position of the staple heads (20) and the saddle-shaped supports (2, 30, 40, 50) in the region of the interaction during stapling. It is an essential feature of the present invention that the staple head (20) and the support (2, 30, 40, 50) are pivoted towards one another in such a way that they come to lie within a common stapling plane (H). This means that the saddle plane which is defined by the pivoting axis (S) of the saddle-shaped support (2, 30, 40, 50) and the support edge (13) and the staple-head plane which is defined by the pivoting axis of the staple head (20) and the ram tip are superimposed on one another in the region of the interaction and for the duration of the interaction and define what is known as the stapling plane (H). Here, the stapling plane (H) is pivoted continuously, with the result that it stands orthogonally on the main conveying plane (X) only in a central position.

L'invention concerne une nouvelle brocheuse collectrice (10) et un nouveau procédé d'utilisation d'une brocheuse collectrice (1) qui permettent, même lorsque les durées de pause des pinces sont relativement courtes, d'amener les pinces (K) en position correcte et de les fermer sans problème. Ce problème est résolu avec la nouvelle commande de la position des têtes de brochage (20) et des appuis (2, 30, 40, 50) en forme de selle dans la zone de la coopération lors du brochage. Une caractéristique essentielle de la présente invention réside en ce que la tête de brochage (20) et les appuis (2, 30, 40, 50) sont inclinés l'un par rapport à l'autre de telle sorte qu'ils viennent se placer à l'intérieur d'un plan commun de brochage (H). Cela signifie que le plan incliné défini par l'axe de pivotement (S) des appuis (2, 30, 40, 50) en forme de selle et le bord (13) de l'appui et que le plan de tête de brochage défini par l'axe de pivotement de la tête de brochage (20) et le sommet du poussoir dans la zone de la coopération et pendant la durée de la coopération sont superposés l'un à l'autre et définissent ainsi ledit plan de brochage (H). Le plan de brochage (H) est ainsi incliné en continu, de sorte qu'il n'est perpendiculaire au plan principal de transport (X) que dans une position centrale.

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