MANUFACTURE OF SEALS FOR NAILS, SCREWS, ETC.

摘要

A machine for producing tubular fastener sealing members having rolled ends includes an apertured guide member cutting block backed by a pair of clamp members and which feeds tubular stock of resilient material between the clamp members through the guide block. A rotating knife is associated with the guide block and an axially reciprocating rotating shaft supports an edge rolling tool confronting and coaxial with the guide aperture. The components are motivated and sequenced to open the clamp until the tube is advanced to the tool, close the clamp, advance the tool to roll the tube leading edge, open the clamp and retract the tool which is followed by the tube, close the clamp, further retract the tool, and slice the finished product from the tube stock.