EP 0388791 B1 19940608 - Apparatus for removing trash from a fiber web.
Title (en)
Apparatus for removing trash from a fiber web.
Title (de)
Vorrichtung zum Ausscheiden von Schmutz aus einem Faservlies.
Title (fr)
Appareil pour éliminer des impuretés d'une toison de fibres.
Publication
Application
Priority
CH 109289 A 19890323
Abstract (en)
[origin: EP0388791A1] A card 1 has a cylinder 2, a revolving flat 3, a licker-in roller 4 and a take-off roller 5 (also called a doffer roller). <??>In order, on the one hand, to eliminate dirt and, on the other hand, to improve the carding effect of the card as a whole in the breaking zone between the licker-in 4 and the revolving flat 3, in the post-carding zone between the revolving flat 3 and the doffer 5 and in the sub-carding zone between the doffer 5 and the licker-in 4, according to the invention there is a combination of a preparation element 6, a suction device 7 and a separating knife 8 or 9. <??>According to the invention, the preparation element has a structured surface directed opposite to the cylinder surface and represented in Figure 1 as teeth pointed sharply in the direction of rotation D of the cylinder 2. <??>By means of this structured surface, on the one hand a carding effect can be obtained, and on the other hand the fleece lying on the cylinder 2 is exposed to some vibration, so that, in combination with the centrifugal force, the dirt can be eliminated more effectively on the knife 8 or 9 and removed by the suction device 7. <??>In the breaking zone between the licker-in 4 and the revolving flat 3, the knife 9 is assigned a carding bar 10, unlike the knife 8 in the post-carding and sub-carding zones which has an independent element. <??>The invention is intended to improve, on the one hand, the carding effect and, on the other hand, the elimination of dirt on a card. <??>However, the invention is not restricted to the use of the combination on a card, but can also be employed on all rollers which carry a fleece and on which dirt has to be eliminated from the fleece. <IMAGE>
IPC 1-7
IPC 8 full level
D01G 15/94 (2006.01); D01G 15/34 (2006.01); D01G 15/80 (2006.01)
CPC (source: EP US)
D01G 15/34 (2013.01 - EP US); D01G 15/805 (2013.01 - EP US)
Citation (examination)
- DE 3034036 A1 19820415 - HOLLINGSWORTH GMBH [DE]
- GB 1483291 A 19770817 - HOLLINGSWORTH J
Designated contracting state (EPC)
CH DE ES FR GB IT LI NL
DOCDB simple family (publication)
EP 0388791 A1 19900926; EP 0388791 B1 19940608; CN 1022337 C 19931006; CN 1045821 A 19901003; DD 297464 A5 19920109; DE 59005983 D1 19940714; JP H0351322 A 19910305; US 5031278 A 19910716
DOCDB simple family (application)
EP 90104895 A 19900315; CN 90101461 A 19900313; DD 33893790 A 19900321; DE 59005983 T 19900315; JP 6990690 A 19900322; US 49761890 A 19900323