Device and method for cutting to size coated decorative paper web sections and use of a device
View Patent ↗A device ( 100 ) for the cutting to size of coated decorative paper web sections ( 5, 6 ), with a processing line ( 10 ) with units ( 11 to 13 ) for purposes of decorating and impregnating a continuous paper web ( 15 ) to form a decorative paper web ( 1 ), and at least one transverse cutting unit ( 30, 31 ) for purposes of cutting off decorative paper web sections ( 5, 6 ) of defined length (l 1 , l 2 ) from the decorative paper web ( 1 ). In accordance with the invention provision is made for at least one longitudinal cutting unit ( 18 ) to be arranged ahead of the at least one transverse cutting unit ( 30, 31 ) in the direction of feed, for purposes of separating the decorative paper web ( 1 ) into at least two continuous decorative paper web lengths ( 2, 3 ), and provision is made for at least one deflection unit ( 25 ), which spaces the two decorative paper web lengths ( 2, 3 ) apart from one another and feeds each of them to a separate transverse cutting unit ( 30, 31 ).
1. A device ( 100 ) for the cutting to size of coated decorative paper web sections ( 5 , 6 ) with a processing line ( 10 ) with units ( 11 to 13 ) for purposes of decorating and impregnating a continuous paper web ( 15 ) to form a decorative paper web ( 1 ), and at least one transverse cutting unit ( 30 , 31 ) for purposes of cutting off decorative paper web sections ( 5 , 6 ) of defined length (l 1 , l 2 ) from the decorative paper web ( 1 ),
wherein,
in the direction of feed ahead of the at least one transverse cutting unit ( 30 , 31 ) at least one longitudinal cutting unit ( 18 ) is arranged for purposes of separating the decorative paper web ( 1 ) into at least two continuous decorative paper web lengths ( 2 , 3 ), wherein at least one deflection unit ( 25 ) is provided which spaces the two decorative paper web lengths ( 2 , 3 ) apart from one another and feeds each of them to a separate transverse cutting unit ( 30 , 31 ), and wherein the deflection unit ( 25 ) is designed so as to raise a decorative paper web length ( 3 ), cut off from the paper web ( 15 ) and arranged parallel to, and spaced apart from, the paper web ( 15 ), from the plane of the paper web ( 15 ) in a certain region in the vicinity of the deflection unit ( 25 ), and to lower it onto the original plane once more, such that a passage ( 36 ) is formed in the raised region of the decorative paper web length ( 3 ).
2. The device in accordance with claim 1 , wherein, the at least one deflection unit ( 25 ) is set up for the purpose of aligning the at least two decorative paper web lengths ( 2 , 3 ) parallel to one another between the longitudinal cutting unit ( 18 ) and the transverse cutting units ( 30 , 31 ).
3. The device in accordance with claim 2 , wherein, the at least one deflection unit ( 25 ) has two deflection elements ( 26 , 27 ) spaced apart from one another, which in each case deflect one decorative paper web length ( 3 ) through approx. 40° to 90° from its direction of feed.
4. The device in accordance with claim 3 , wherein, the deflection element ( 26 , 27 ) has a guide surface ( 28 ) of curved design for the decorative paper web length ( 3 ) on a deflection cylinder rigidly arranged on an axis, and wherein, in the region of the guide surface ( 28 ), a cushion of air is formed so as to provide contact-free deflection of the decorative paper web length ( 3 ).
5. The device in accordance with claim 4 , wherein, the guide surface ( 28 ) has openings ( 29 ) to allow the through-flow of air at an elevated pressure; the openings ( 29 ) are arranged on the side facing away from the decorative paper web length ( 3 ) and are in operative connection with an elevated pressure source.
6. The device in accordance with claim 3 , wherein the at least one deflection unit ( 25 ) deflects one decorative paper web length ( 3 ) through 90°.
7. The device in accordance with claim 1 , wherein, for purposes of height adjustment of the decorative paper web length ( 3 ) a deflection element ( 26 ) facing towards the paper web ( 15 ) is designed so as to be adjustable in height.
8. The device in accordance with claim 1 , wherein the at least one longitudinal cutting unit ( 18 ) and the at least one deflection unit ( 25 ) are arranged such that they can be adjusted in a direction transverse to the longitudinal direction of the decorative paper web ( 1 ).
9. The device in accordance with claim 1 , wherein control means ( 22 ) are provided, which are designed for the purpose of adjusting the at least one longitudinal cutting unit ( 18 ) in its position on the basis of the format of the decorative paper web ( 1 ) and the decorative paper web sections ( 5 , 6 ), and for the purpose of controlling the transverse cutting units ( 30 , 31 ) such that an optimisation of the decorative paper web ( 1 ) takes place in the sense of a generation of decorative paper web sections ( 5 , 6 ) that is as complete as possible and free of waste.
10. The device in accordance with claim 9 , wherein the control means ( 22 ) comprise storage means with combinations of formats of decorative paper web sections ( 5 , 6 ).
11. A method for the cutting to size of coated decorative paper web sections ( 5 , 6 ), in which along a processing line ( 10 ) a continuous paper web ( 15 ) is firstly decorated and impregnated, and subsequently decorative paper web sections ( 5 , 6 ) of defined length (l 1 , l 2 ) are cut off from a decorative paper web ( 1 ) by means of at least one transverse cutting unit ( 30 , 31 ), wherein, in a region ahead of the at least one transverse cutting unit ( 30 , 31 ) the decorative paper web ( 1 ) is separated into at least two continuous decorative paper web lengths ( 2 , 3 ) by means of at least one longitudinal cutting unit ( 18 ), and wherein the at least two decorative paper web lengths ( 2 , 3 ) are fed to separate transverse cutting units ( 30 , 31 ), and wherein a deflection unit ( 25 ) spaces the two decorative paper web lengths ( 2 , 3 ) apart from one another and feeds each of them to a separate transverse cutting unit ( 30 , 31 ).
12. The method in accordance with claim 11 , wherein the width (B) of the decorative paper web ( 1 ) in the region of the processing line ( 10 ) has at least 50%, of the design width of the units ( 11 to 13 ) on the processing line ( 10 ).
13. The method in accordance with claim 12 , wherein the width (b) of the decorative paper web ( 1 ) in the region of the processing line ( 10 ) has more than 75% of the design width of the units ( 11 to 13 ) on the processing line ( 10 ).
14. The method in accordance with claim 12 , wherein the width (b) of the decorative paper web ( 1 ) in the region of the processing line ( 10 ) has at least 90% of the design width of the units ( 11 to 13 ) on the processing line ( 10 ).
15. The method in accordance with claim 11 wherein, the decorative paper web lengths ( 2 , 3 ) are fed continuously between at least the longitudinal cutting unit ( 18 ) and the associated transverse cutting units ( 30 , 31 ).
16. The method in accordance with claim 11 , wherein at a point in time ahead of a production phase, during a setting-up phase for the longitudinal cutting unit ( 18 ), the width of the decorative paper web length ( 3 ), cut off from the paper web ( 15 ) and deflected, is continuously increased from an initial value (b 3 ) greater than zero up to the intended final width (b 2 ).