Method and unit for stitching multilayer products of green...

Details Method and unit for stitching multilayer products of green... Method and unit for stitching multilayer products of green...

B - Operations, Transporting

29

D

B29D 30/14 (2006.01) B29C 43/36 (2006.01) B29D 30/28 (2006.01) B29D 30/36 (2006.01)

Patent

CA 2064161

ABSTRACT A method and unit for stitching multilayer products of green elastomeric material, whereby an annular multilayer product of green elastomeric material, particularly a product forming at least part of a tire, is placed inside a hollow annular body designed to house the multilayer product and forming a stitching mold having a concave inner surface contacting a first convex surface of the multilayer product and negatively reproducing the final shape to be im- parted on the multilayer product; a stitching device being brought into contact, at a given pressure, with a second concave surface of the multilayer product; and relative motion being produced between the stitching device and the multilayer product, so as to cause the stitching device to stitch the multilayer product in contact with the inner surface of the stitching mold. (Figure 1)

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