Device for accurately imprinting an unmarked foil

B - Operations – Transporting – 41 – J

Patent

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Details

B41J 11/42 (2006.01) B41J 15/00 (2006.01) B65H 23/188 (2006.01)

Patent

CA 2519052

A device for precise-positioning printing of a marking-free first film (1) which comprises elements (B) in sections of a section length (A1) and which is coupled to a second film (2). The second film (2) has markings (2a) which are located at a predetermined distance (A2) from each other, corresponding to an optionally existing difference D in the section length (A1). The elements (B) are disposed on the first film (1) in a precisely positioned manner in relation to the markings (2a) with the aid of a first device (3) which is used to join the two films (1,2). The inventive device also comprises a transport device (5), which is used to further transport the two films (1,2) at the predetermined distance (A2) in sections, and a second device (4) which is provided with an activating input (4a) and which is used to dispose one element (B) in a precisely positioned manner on the first film (1) when a signal is applied to the activating input (4a). The invention is characterized that a sensor (7), which is used to detect the markings (2a), is provided. A signal is applied to activation input (4a) of the second device (4) by said sensor for each detected marking (2a).

L'invention concerne un dispositif pour l'impression, en position rigoureusement exacte, d'une première feuille exempte de marquages (1) qui, dans des sections d'une longueur de section A1, présente des éléments B, et qui est assemblée avec une seconde feuille (2). La seconde feuille (2) présente des marquages (2a) à une distance A2 prédéterminée entre eux, qui, jusqu'à une différence D se présentant éventuellement, correspond à la longueur de section A1, les éléments B devant être amenés, par rapport aux marquages 2a, exactement en position sur la première feuille (1), au moyen d'un premier dispositif (3), au moyen duquel les deux feuilles (1, 2) sont liées entre elles, d'un dispositif de transport (5), au moyen duquel les deux feuilles (1, 2) continuent d'être transportées, section par section, d'une distance prédéterminée A2, et au moyen d'un second dispositif (4) muni d'une entrée d'activation (4a) grâce à laquelle un élément B peut constamment être amené exactement en position sur la première feuille (1) lorsqu'un signal est émis à l'entrée d'activation (4a). L'invention est caractérisée en ce qu'il est prévu un détecteur (7) permettant de détecter les marquages (2a) et qui, pour chaque marquage détecté (2a), émet un signal à l'entrée d'activation (4a) du second dispositif (4).

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