Patent DE-102009003065-A1 (DE)
Title: Device for single or double side coating of a fluid to pasty coating medium on a running paper-, cardboard- or other fiber material web during its production and/or finishing process, comprises support elements
Inventor: LEISS HORST
IPC: D21H23/42
Filed: 2009-05-13
Abstract: The device for single or double side coating of a fluid to pasty coating medium on a running paper-, cardboard- or other fiber material web (1) during its production and/or finishing process, comprises a first support element (2) and a second support element (3), which form a press column (4) through which the fiber material web is fed on a web side with the coating medium and moved in a direction. The coating medium receives on a web side. The second support element is formed as endless band (3.1). The device for single or double side coating of a fluid to pasty coating medium on a running paper-, cardboard- or other fiber material web (1) during its production and/or finishing process, comprises a first support element (2) and a second support element (3), which form a press column (4) through which the fiber material web is fed on a web side with the coating medium and moved in a direction. The coating medium receives on a web side. The second support element is formed as endless band (3.1), which is guided and spanned in such a way that it entwines the first support element and the thread material web in an angle of 90-270[deg] C. The support elements comprise different running speed. The second support element is formed as running endless band. The second support element entwines the first support element beginning at a web inlet and ended at a web outlet. The second support element entwines the first support element in an angle of 160-170[deg] . The first supporting element is a rotating roller and serves the transmission of the coating medium on a web side. The endless band serves the transmission of the coating medium on another web side. The roller is associated to a first coating aggregate for indirect coating of one of the web sides and the endless band is associated to a second coating aggregate for indirect coating of another web side. The first coating aggregate of the roller is associated for indirect coating of the web side and the second coating aggregate before the web inlet is directly associated to the fiber material web for direct coating of another web side. The first coating aggregate and the second coating aggregate is directly associated to the fiber material web at the respective web side before the web inlet and/or after the web outlet for direct coating of the fiber material web. The coating aggregates are pivotable before the web side and/or the roller and/or the endless band. The endless band is made of elastomer material or is a metal band. The elastomer material is polyurethane, rubber, metal-reinforced rubber or metal-reinforced elastomer material. The support element and/or the roller is heatable. The support element and/or the endless band are heatable in the trap of the use of a metal band. The roller and the endless band have a running speed, where the difference of the running speed of the roller and the endless band is 5-50 m/min. The support element and/or the endless band comprise a surface that is formed against the coating medium, and is associated to a cleaning device.