Method of spiral winding strip material

Details Method of spiral winding strip material Method of spiral winding strip material

B - Operations, Transporting

65

H

242/38.3

B65H 54/32 (2006.01) B29D 30/30 (2006.01) B65H 55/00 (2006.01) B65H 81/00 (2006.01)

Patent

CA 1161814

METHOD OF SPIRAL WINDING STRIP MATERIAL Abstract of the Disclosure Strip material 5 coming from a letoff position 14 is wound on a supply reel 10 by rotating the reel 10 while at the same time providing axial movement of the reel 10 relative to the letoff. The axial movement is stopped for a predetermined period of time when the strip 5 reaches an end portion of the reel 10 and before the relative axial movement is reversed to form another layer on the reel 10 to provide a supporting edge surface for other layers and reduce the induced curl in the strip material 5. Each successive layer of strip 5 may be of a shorter length to provide a pyramid configuration to maintain the position of the windings. This method may be controlled by a micro- processor programmed with a basic sequence which can be altered by the operator to set the number f base layers, the number of pyramid layers and the duration . of the interval during which there is no relative axial movement of the shell and the letoff at the end of each pass on the supply reel 10.

379425

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