Forming machine for forming a hollow body, in particular a casing of a solid propellant engine, and deposit head for such a forming machine

摘要

In a machine for forming a hollow body, for example a casing of a solid propellant engine, a tensioned and guided belt comprising a layer of adhesive material and a protective strip is fed from a deposit head, supported by a robot and comprising an unwinding device for unwinding the belt, a winding device for winding the strip, a first pressing roller for pressing the strip and the layer of adhesive material and rotatable about an axis thereof orthogonal to the feed path of the belt and a second pressing roller for pressing the adhesive material and the strip, rotatable about an axis thereof forming an angle other than 90° to the feed path and movable in opposite directions in a direction transversal to feed path.

主权项

1. A deposit head for a forming machine for forming hollow bodies; the deposit head comprising a support frame adapted to be coupled to a moving member, motorized supply means and guide means carried by said support frame to feed, along a predefined feeding path, a belt comprising a layer of adhesive material and a protective strip arranged on only one side of said layer of adhesive material, motorized winding means for winding said protective strip and carried by said frame, and a first pressing roller for pushing said strip and said layer of adhesive material toward a deposit surface of said adhesive material and rotatable about an axis thereof that is orthogonal to said feeding path, characterized by further comprising a second pressing roller for pushing said strip and said adhesive material toward said deposit surface; said second pressing roller being carried by said support frame and being rotatable about an axis thereof forming, with said feeding path, an angle other than 90°; first actuation and guide means being interposed between said support frame and said second pressing roller for moving the second pressing roller in opposite directions along a direction transversal to said feeding path.