Automatic device for introducing insulation into the cavities of supporting bodies for the windings of electrical machines, especially for the windings of rotors and stators of electric motors

摘要

An automatic device for introducing insulation into the cavities 3 of supporting bodies for the windings of electrical machines, especially for the windings of stators and rotors R of electric motors, comprises one or more pairs of pre-shaping rollers 7, 7'; 8, 8'; 9, 9' which impress predetermined longitudinal bending lines 102, 202 on to a strip of insulating material 2; at least one pair of driving rollers 9, 9' which feed the strip of insulating material 2 to the cavities 3 of a rotor R through a shaping channel 26, in which the strip of insulating material 2 is bent around the predetermined bending lines 102, 202 into a shape having a cross section matching that of the cavities 3. There are also provided means 40 of aligning the cavities 3 with the exit of the shaping channel 26; means 53 of timing the advance travel of the strip 2 in a succession of advance steps, each corresponding to the complete introduction of the strip 2 into a cavity 3; and cutting means 32 for separating the portions of strip 2 introduced into the cavities 3. IMAGE