WIRE FEEDING APPARATUS

A wire feeding apparatus (100) is provided with: a motor (10); feeding rolls (24) which are driven by the motor (10); pressure rolls (23) each of which feeds a welding wire held between the pressure rolls (23) and the feeding rolls (24); a feeding unit housing (21) to which the feeding rolls (24), the pressure rolls (23), and the motor (10) are mounted; and a frame (30) to which the feeding unit housing (21) is mounted. The feeding unit housing (21) is mounted to the frame (30) via an insulation plate (81) that is disposed therebetween. The motor (10) is mounted to the feeding unit housing (21) via an insulation plate (80) that is disposed therebetween. The insulation plates (80, 81) are each formed from a thermosetting resin having a predetermined thermal conductivity. 焊丝进给装置(100)具备：马达(10)；进给辊(24)，其由马达(10)驱动；加压辊(23)，其将焊丝夹在该加压辊(23)与进给辊(24)之间进行进给；进给部框体(21)，其安装有进给辊(24)、加压辊(23)及马达(10)；以及框架(30)，其安装有进给部框体(21)。进给部框体(21)隔着绝缘板(81)安装于框架(30)。马达(10)隔着绝缘板(80)安装于进给部框体(21)。绝缘板(80、81)由具有规定热传导率的热固化性树脂构成。