| 摘要 |
Provided is a wire feed volume regulating device that can maintain a constant wire tension and feed volume without using a complex mechanism and thereby be easily maintained and have the manufacturing costs of same be reduced. A wire feed volume regulating device comprises a driving shaft (21) and a driven shaft (22), a primary roller (23) that is disposed on the driving shaft (21), a secondary roller (24) that is disposed on the driven shaft (22), a transmitting member (25) that transmits the driving power to the primary roller (23) and the secondary roller (24) by way of frictional contact, a transporting roller (26) that is disposed on the driven roller (21) and that transports a wire (M), and a rocking member (40) that moves the transmitting member (25). The drive power transmission ratio from the primary roller (23) to the secondary roller (24) is varied by moving the transmitting member (25). |
