Device for coating a carrier substrate with a powdered material and machine for producing a product strand with a dry film applied to a carrier substrate

A device (100;

• 100*) for coating a carrier substrate (006) with a powdered material (003), the device comprising;
• a first application unit (101), which comprises a first roller (102;
• 102′) and a second roller (103;
• 103′) which form a first gap (104;
• 104′) in a nip between respective outer cylindrical surfaces thereof, wherein a dry powder mixture (004) is conveyed through the first gap (104;
• 104′) in order to form a first dry film (003′),
• a first counter-pressure roller (103′;
• 106) which, together with the second roller (103;
• 103′), forms a second gap (107;
• 107′) through which a carrier substrate (006) to be coated is guided for having the first dry film (003)-formed in the first gap (104;
• 104′) applied to a first side of the carrier substrate (006), and
• the first gap (104;
• 104′) between the first and second rollers (102;
• 102′;
• 103;
• 103′) being adjustable based on a position-based positioning drive (109;
• 109′), wherein the position-based positioning drive (109, 109′) is selectively set to provide at least one of a constant or defined gap width,
• characterized in that the second gap (107;
• 107′) between the counter-pressure roller (106;
• 106′;
• 103′;
• 103) and the second roller (103;
• 103′) of the first application unit (101;
• 101′) is adjusted based on a force-based positioning drive (111;
• 111′) by being set to at least one of a constant or defined compression force or line force.