Method and system for splicing nose wire in a facemask manufacturing process
View Patent ↗A method and system are provided for splicing a reserve nose wire to a running nose wire in a facemask production line. Prior to depletion of the running nose wire, a reserve nose wire is brought up to a transport speed in a conveying direction of the running nose wire. At or near a zero relative speed between the running nose wire and the reserve nose wire, a leading end of the reserve nose wire is introduced onto the running nose wire, and the two wires are spliced together. The running nose wire is then cut upstream of the splice location such that the reserve nose wire becomes a new running nose wire in the production line.
1. A method for splicing a reserve nose wire to a running nose wire in a facemask production line, comprising:
prior to depletion of the running nose wire, bringing the reserve nose wire up to a transport speed in a conveying direction of the running nose wire;
at a relative speed between the running nose wire and the reserve nose wire that allows a subsequent splicing process, introducing a leading end of the reserve nose wire onto the running nose wire and forming a splice between the reserve nose wire and the running nose wire;
cutting the running nose wire upstream of the splice location such that the reserve nose wire becomes a new running nose wire in the production line;
the reserve nose wire supplied from a reserve roll of nose wire;
wherein the reserve roll is driven prior to introducing the leading end of the reserve nose wire onto the running nose wire to create an initial accumulation of the reserve nose wire that is drawn down as the reserve roll comes up to an operating rotational speed.
2. The method as in claim 1 , wherein the leading end of the reserve nose wire is staged at a location for subsequent feeding onto the running nose wire at the relative speed.
3. The method as in claim 2 , wherein one or more feed rollers draw the leading end of the reserve nose wire from the reserve roll and onto the running nose wire.
4. The method as in claim 2 , wherein the reserve roll is moved to an in-line operating position after the splice, and a new reserve roll is staged for a subsequent splice operation.
5. The method as in claim 1 , further comprising sensing transport speed of the running nose wire and, based on the running speed and distance of the leading end of the reserve wire from a crimping location, bringing the reserve nose wire up to the transport speed to achieve the relative speed between the reserve nose wire and the running nose wire.
6. The method as in claim 5 , further comprising sensing a depletion state of the running nose wire and timing the splicing as a function of the sensed depletion state.
7. The method as in claim 1 , wherein the splice is performed by crimping the reserve nose wire to the running nose wire.
8. The method as in claim 1 , wherein the splice is performed with a portable splice cabinet that is brought into position alongside of the production line.
9. The method as in claim 1 , wherein the splice is performed by splice machinery that is permanently configured with the production line.