Embossing and laminating machine for gluing embossed layers

Details Embossing and laminating machine for gluing embossed layers Embossing and laminating machine for gluing embossed layers

B - Operations, Transporting

31

F

B31F 1/07 (2006.01)

Patent

CA 2239435

An embossing and laminating machine is described which comprises a first embossing cylinder (3) with a surface provided with a first set of protuberances (P3) disposed with a first pitch in a first direction (Lx3) of alignment and with a second pitch in a second direction (Ly3) of alignment, the said first and the said second direction of alignment forming between them an angle (.alpha.) other than zero; a second embossing cylinder (5), with its axis (A5) parallel to the axis (A3) of the first embossing cylinder (3), and with a surface provided with a second set of protuberances (P5) disposed with the said first pitch in a third direction (Lx5) of alignment and with the said second pitch in a fourth direction (Ly5) of alignment; and a first and a second pressure roller (7, 9) interacting with the said first and the said second embossing cylinder (3, 5) respectively. The first and the third direction of alignment (Lx3) are inclined with respect to the axes (A3, A5) of the corresponding embossing cylinders (3, 5) such that, in the lamination nip, there is only partial correspondence between the protuberances of one cylinder and the protuberances of the other cylinder.

Machine de gaufrage et de stratification comportant un premier cylindre de gaufrage (3) présentant une surface pourvue d'un premier groupe de protubérances (P3) disposées selon un premier espacement dans un premier sens d'alignement (Lx¿3?) et selon un deuxième espacement dans un deuxième sens d'alignement (Ly¿3?), lesdits premier et deuxième sens d'alignement formant entre eux un angle (.alpha.) non nul; un second cylindre de gaufrage (5) présentant un axe (A5) parallèle à l'axe (A3) du premier cylindre de gaufrage (3), et une surface pourvue d'un second groupe de protubérances (P5) disposées selon ledit premier espacement dans un troisième sens d'alignement (Lx¿5?) et selon ledit deuxième espacement dans un quatrième sens d'alignement (Ly¿5?); et un premier et un second rouleau de pression (7, 9) coopérant respectivement avec le premier et le second cylindre de gaufrage (3, 5). Le premier et le troisième sens d'alignement (Lx¿3?) sont inclinés par rapport aux axes (A3, A5) des cylindres de gaufrage (3, 5) correspondants de sorte que, dans la zone de pincement où s'effectue la stratification, la correspondance n'est que partielle entre les protubérances de l'un des cylindres et les protubérances de l'autre cylindre.

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