US 4,307,851 AGranted

Apparatus for winding a plurality of separate strips while maintaining tension in each strip

OwnerVladimir I. Dunaevsky, Nikolai A. Sorokin +5inventors

InventorsVladimir I. Dunaevsky, Nikolai A. Sorokin, Viktor M. Levit, Boris M. Zapara, Boris N. Ivanov, Sergei A. Frolov, Vladimir V. Lizenko

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Abstract

A winder preferably for winding separate metal strips into coils following slitting a wider strip, comprises a power-operated mandrel and pyramidal sleeves successively mounted on this same mandrel for axial movement. On the pyramidal sleeves, mounted for longitudinal movement thereon are segmental members forming a drum section on each pyramidal sleeve for winding a separate strip. The drum sections are interconnected by split rings having a generally U-shaped cross section and mounted on the power-operated mandrel and between adjacent drum sections are drive rings frictionally engaging the end surfaces of the pyramidal sleeves, whereby axial movement of pyramidal sleeves actuated by a mechanism for imparting such movement thereto brings about setting of the apparatus from a retracted to expanded position and vice versa.

Claims8

Dependent claims

Apparatus for winding a plurality of separate strips while maintaining tension in each strip, comprising:

(a) a power-driven mandrel,
(b) a plurality of pyramidal sleeves each having opposite radially extending base and top end surfaces and mounted for free rotation on said mandrel with the base of one sleeve adjacent the top of the next sleeve,
(c) a drive ring mounted on said mandrel between each adjacent pair of said sleeves for axial movement on said mandrel and for positive rotation with the same, said drive ring having drive surfaces frictionally engaging the corresponding end surfaces of said sleeves;
(d) a plurality of segmental members mounted for longitudinal movement on each said sleeve and forming a drum section adapted to receive a strip as the coil is formed, each said segmental member having a laterally extending slot formed in the outer surface thereof forming a circumferentially extending slot in each said drum section,
(e) means for axially moving said segmental members to frictionally associate the same with said drive rings as the coils are formed,
(f) a split ring of generally U-shaped cross section arranged between each adjacent pair of the drum sections and having a trailing flange movably received within the circumferentially extending slot of one of the drum sections of the pair and a leading flange connected to said sleeve carrying the other drum section, whereby axial movement of one drum section actuated by said means for axially moving said segmental members brings about successive movement of all the drum sections and therefore setting of the apparatus from a retracted to expanded position and vice versa.

3 more elements

Dependencies are inferred from the claim text.