WIRE TYING MACHINES

摘要

A machine for tying wire around one or more objects such as concrete reinforcement bars comprises twisting means (44) for twisting a length of wire around the bars. The twisting means are associated with a shaft driven by a motor for effecting the twisting. Means for gripping the wire during the rotation are operatively acted upon by a solenoid coil arranged around at least part of the shaft and adapted to move parallel to the shaft when an electric current is passed through the coil. The machine also comprises wire feed means (45) for drawing wire from a spool and feeding the wire around the bars. A single motor (40) is provided for driving the wire feed means (45) and the twisting means (44).