Melt line for spin beam
AssigneeBarmag AG
InventorsFelix Herwegh, Nils Holger Weide, Wolfgang Schumann
Life of this patent
Estimating the term…
Abstract
A melt line and a spin beam equipped therewith are disclosed, wherein the melt line (3) serves to advance a molten plastic between a delivery member and an outlet member such as a spinneret. The melt line includes a first line segment (15) and a lower second line segment (17), both of which are downwardly inclined. Also, the first line segment (15) and the second line segment (17) are interconnected by an elbow (16), the elbow (16) having likewise a downward inclination over its entire length and following substantially the form of a helix.
Claims12
A melt line for advancing a molten plastic in a spin beam which includes a delivery member and an outlet member positioned below the delivery member, and comprising;
- an upper line segment which is downwardly inclined,
- a lower line segment which is downwardly inclined, and
- an elbow interconnecting the upper and lower line segments, with the elbow being substantially helical so as to be downwardly inclined along the entire length of the elbow, and With the upper and lower line segments extending in different directions which are each substantially tangent to the helix of the elbow.
A self supporting melt distributor unit which is adapted to form a component of a melt spin beam, and comprising
- an elongate lower support member,
- a plurality of spinnerets mounted to said lower support member along at least one row,
- a pump collection plate mounted above said spinnerets and having a plurality of holes extending therethrough, and
- a plurality of melt distribution lines interconnecting the holes in said pump collection plate with respective ones of said spinnerets, with at least one of said melt distribution lines comprising
- (a) an upper line segment which is downwardly inclined,
- (b) a lower line segment which is downwardly inclined, and
- (c) an elbow interconnecting the upper and lower line segments, with the elbow being substantially helical so as to be downwardly inclined along the entire length of the elbow, and with the upper and lower line segment extending in different directions which are each substantially tangent to the helix of the elbow.
Dependencies are inferred from the claim text.