Folding device for producing (cigarette) packs

Details Folding device for producing (cigarette) packs Folding device for producing (cigarette) packs

B - Operations, Transporting

31

B

B31B 1/32 (2006.01) B31B 1/74 (2006.01)

Patent

CA 2058570

Folding means of a folding turret (10), in particular folding mandrels (11) in the form of elongate thin-walled hollow bodies, are susceptible to mechanical stress. The folding mandrels (11) are monitored by a monitoring unit (13) with inductive tracers (14, 15; 29, 30) as regards correct arrangement and shape. Any changes in the shape of the mandrels actuate an error signal which is assigned to the respective folding mandrel (11). The tracer means may be arranged on one side of the path of movement of the folding mandrels (11) at different distances thereto. Alternatively, tracer means can be installed at equal distances on either side of the path of movement of the folding mandrels (11).

Les organes de pliage d'une plieuse à tourelle (10), en particulier les mandrins de pliage (11) en forme de corps creux allongés à parois minces sont soumis à des sollicitations mécaniques. La position et la forme des mandrins de pliage (11) sont contrôlées par une unité de contrôle (13) à organes de repérage inductifs (14, 15; 29, 30). la détection de tout changement de forme d'un mandrin (11) donné, un signal d'erreur identifiant en propre ce mandrin est généré. Les organes de repérage inductifs peuvent être disposés d'un côté du trajet suivi par les mandrins de pliage (11), à différentes distances de séparation. Ils peuvent aussi être placés de part et d'autre de ce trajet, à distances de séparation égales.

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