| 摘要 |
A wire feeding mechanism for advancing a continuous length of wire along a pathway includes a housing having first and second roller supports each rotatable about a corresponding axis transverse to the pathway. A first and second roller supports are on opposite sides of the pathway and are driveably engaged with each other. A first drive roller is on the first roller support for rotation therewith and has a first roller axis coaxial with the axis of the first roller support. The first drive roller has a first drive roller outer surface extending circumferentially about the first axis. A second drive roller is on the second roller support for rotation therewith and has a second roller axis coaxial with the axis of the second roller support. The second drive roller has a second drive roller outer surface extending circumferentially about the second axis. The first and second drive rollers tangentially and compressively contact the continuous length of wire therebetween such that the wire is advanced along the pathway in response to rotation of the drive rollers. At least one wire guide is positioned adjacent the first and second drive rollers and directs the continuous length of wire at least one of (1) into contact with the first and second drive rollers and (2) away from contact with the first and second drive rollers. An anti-friction coating is on at least one of the first drive roller, the second drive roller and the at least one wire guide for reducing deformation and scratching of the continuous length of wire.
|
