CORRUGATED-BOARD MACHINE

• US 20170087879A1
• Filed: 09/22/2016
• Published: 03/30/2017
• Est. Priority Date: 09/24/2015
• Status: Active Grant

• Current Assignee: BHS Corrugated Maschinen- und Anlagenbau GmbH (Bwv-Wellpappenmaschinen Vertriebs-GmbH)
• Original Assignee: BHS Corrugated Maschinen- und Anlagenbau GmbH (Bwv-Wellpappenmaschinen Vertriebs-GmbH)
• Inventors: MARK, Maximilian
• Granted Patent: US 10,189,280 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B31F 1/2822 involving additional operations
• CPC Class Codes: B31F 1/285 Heating or drying equipment
• CPC Class Codes: B41F 23/08 Print finishing devices, e.g. for glossing prints B41F23/005 takes precedence
• CPC Class Codes: B41J 11/0015 for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing selective coating B41J2/2114
• CPC Class Codes: B41J 11/002 Curing or drying the ink on the copy materials, e.g. by heating or irradiating
• CPC Class Codes: B41J 11/00216 using infrared [IR] radiation or microwaves
• CPC Class Codes: B41J 11/0022 using convection means, e.g. by using a fan for blowing or sucking air
• CPC Class Codes: B41J 2/01 Ink jet

Abstract

The invention relates to a corrugated-board machine for manufacturing corrugated board. The corrugated-board machine comprises a material-web output device for outputting a material web, an inkjet printing device disposed downstream of the material-web output device for the imprinting of at least one imprint onto the material web and an overcoating arrangement disposed downstream of the inkjet printing device for overcoating the printed material web at least in regions.

Claims

1. A corrugated-board machine for manufacturing corrugated board, comprising

a) a material-web output device (31) for outputting a material web (37),

b) an inkjet printing device (44) disposed downstream of the material-web output device (31) for printing at least one imprint (45) on the material web (37), and

c) an overcoating arrangement, disposed downstream of the inkjet printing device (44), for overcoating the printed material web (37) at least in regions.

2. A corrugated-board machine according to claim 1, wherein the overcoating arrangement comprises a varnishing unit (48) for substantially full-faced overcoating a printed side (40) of the material web (37) with at least one overcoating layer (49).

3. A corrugated-board machine according to claim 2, wherein the varnishing unit (48) comprises at least one overcoat-application roller (50) for applying the at least one overcoating layer (49) on the printed side (40) of the material web (37).

4. A corrugated-board machine according to claim 2, wherein the varnishing unit (48) comprises at least one dosage element (51) for dosed application of the at least one overcoating layer (49) onto the material web (37).

5. A corrugated-board machine according to claim 2, wherein the varnishing unit (48) comprises a varnish-application control device (48a), which controls an application of the at least one overcoating layer (49) onto the printed side (40) of the material web (37) via at least one of the group comprising a detected moisture and a layer thickness of the at least one overcoating layer (49).

6. A corrugated-board machine according to claim 1, wherein the overcoating arrangement comprises an inkjet-varnishing device (54) for inkjet-varnishing the printed material web (37) in regions with at least one inkjet-varnish region (55).

7. A corrugated-board machine according to claim 6, wherein the at least one inkjet-varnish region (55) is smaller in its area on the printed material web (37) than at least one overcoating layer (49).

8. A corrugated-board machine according to claim 6, wherein the at least one inkjet-varnish region (55) covers the at least one imprint (45) at least in regions in order to increase its gloss effect at least in regions.

9. A corrugated-board machine according to claim 2, wherein the at least one inkjet-varnish region (55) is characterized by a higher degree of gloss by comparison with the at least one overcoating layer (49).

10. A corrugated-board machine according to claim 6, comprising an inkjet-varnishing control device (54a) for the position control of the at least one inkjet-varnish region (55) on the printed material web (37)

11. A corrugated-board machine according to claim 10, wherein the positioning control takes place on the basis of markings (72, 74) of the printed material web (37).

12. A corrugated-board machine according to claim 10, comprising a marking-reading device (53) for the reading of markings (72, 74) arranged on the printed material web (37), wherein the inkjet-varnishing control device (54a) receives marking-position signals from the marking-reading device (53).

13. A corrugated-board machine according to claim 6, wherein a matching of the at least one inkjet-varnish region (55) to the at least one imprint (45) takes place.

14. Corrugated-board machine according to claim 2, wherein the inkjet-varnishing device (54) is disposed downstream of the varnishing unit (48) in conveying direction (38) of the material web (37).

15. A corrugated-board machine according to claim 1, comprising a control in a flow time of at least one of the group comprising the at least one imprint (45) and of the overcoating (49, 55).

16. A corrugated-board machine according to claim 15, wherein the flow time is controllable through pre-drying.

17. A corrugated-board machine according to claim 1, wherein an inkjet print drying device (46) for drying the printed material web (37) is disposed downstream of the inkjet printing device (44).

18. A corrugated-board machine according to claim 1, wherein a hot-pressing device (64) for connecting the printed and overcoated material web (37) to at least one further material web (22) is disposed downstream of the overcoating arrangement.

19. A corrugated-board machine according to claim 18, wherein the at least one further material web (22) is at least one corrugated-board web.

20. A corrugated-board machine according to claim 18, wherein at least one moistening unit (58) is arranged between the overcoating arrangement and the hot-pressing device (64).

21. A method for manufacturing corrugated board, comprising the following steps:

output of a material web (37) by means of a material-web output device (31),

imprinting of at least one imprint (45) onto the material web (37) output by the material-web output device (31) by means of an inkjet printing device (44), and

overcoating the printed material web (37) at least in regions by means of an overcoating arrangement.