Method of forming edgewise wound cores

A method of continuously forming edgewise wound cores from a continuous strip of a generally thin ferromagnetic material at at least one winding station having a pair of arbor means for engagement with each other and for disnegagement from each other, and a set of supporting means in one of the arbor means and adapted for displacement toward a protracted position extending beyond the one arbor means, the method comprising the steps of:

• deforming the continuous strip generally edgewise thereof onto a plurality of generally helical convolutions thereof and accumulating the helical convolutions in a generally axial stack thereof about the arbor means when the arbor means are engaged;
• severing a respective one of the helical convolutions without interrupting the progressive deformation of the continuous strip into the helical convolutions thereof at least generally when the axial stack attains a preselected stack height and defining thereby a respective one of the edgewise wound cores on the other arbor means;
• disengaging the other arbor means with the respective one edgewise wound core supported thereon from the one arbor means and effecting the displacement of the supporting means toward the protracted postion thereof extending beyond the one arbor means in response to the disengagement therefrom of the other arbor means;
• and
• receiving on the supporting means in the protracted positions thereof at least some of the successive ones of the helical convolutions following the severed respective one convolution and accumulating thereby the at least some successive ones of the helical convolutions at least in part in another generally axial stack thereof on the one arbor means when the other arbor means is disengaged therefrom.

A method of continuously forming edgewise wound cores from a strip of generally thin ferromagnetic material at at least one operation station with the at least one operation station having a means for receiving the edgewise wound cores, the receiving means including a pair of generally cylindric members each having a circumferental surface, a chamber in at least one of the cylindric members, a set of openings between the chamber and the cylindric surface of the at least one cylindric member, respectively, a set of pins movable in the openings, respectively, a set of cam surfaces on the pins within the chamber, respectively, cam means movable at least in part in the chamber, and an abutment on the other of the cylindric members, the method comprising the steps of:

• deforming the continuous strip generally edgewise thereof into a plurality of helical convolutions of the strip at the at least one operation station;
• moving the other cylindric member toward a position displaced from the at least one cylindric member and disengaging thereby the abutment on the other cylindric member from the cam of the at least one cylindric member;
• resiliently urging the cam toward a position disengaged from the cam surfaces on the pins within the chamber in response to the moving and disengaging step and moving the pins in the openings toward positions extending a part of each of the pins beyond the circumferential surface of the at least one cylindric member;
• and
• accumulating generally about the circumferential surface of the at least one cylindric member at least some of the helical convolutions in a generally axial stack thereof deformed during the deforming step and seating the at least some helical convolutions in the axial stack thereof on the pin parts extending beyond the circumferential surface of the at least one cylindric member.

A method of continuously forming edgewise wound cores from a strip of generally thin ferromagnetic material at at least one operation station therefor with the at least one operation station having a means for receiving the edgewise wound cores, the receiving means including a pair of separable means adapted for association with each other and separation from each other, and a set of supporting means operable generally in one of the separable means for movement between retracted and protracted positions with respect thereto, respectively, the method comprising the steps of:

• deforming the continuous strip generally edgewise thereof into a plurality of helical convolutions at the at least one operation station;
• separating the separable means from each other and effecting thereby the operation of the supporting means toward the protracted position thereof with respect to the one separable means;
• and
• extending a part of each supporting means beyond the one separable means in response to the separating and effecting step and receiving at least some of the helical convolutions generally in an axial stack thereof about the one separable means on the supporting means parts when the supporting means are in the protracted positions thereof, respectively.

A method of continuously forming edgewise wound cores from a strip of generally thin ferromagnetic material at at least one operation station with the at least one operation station having a means for receiving the edgewise wound cores, the receiving means including a pair of members having at least generally cylindric parts defining at least parts of a generally circumferential surface, a set of pins movable in one of the cylindric members and having a set of cam surfaces thereon, respectively, and a cam movable in the one cylindric member, the method comprising the steps of:

• deforming the continuous strip generally edgewise thereof into a plurality of helical convolutions at the at least one operation station;
• displacing the other of the members from the one member;
• disengaging the cam from the cam surfaces of the pins in response to the displacing step and moving the pins so that a part of each pin extends beyond the at least circumferential surface parts of the one member;
• and
• accumulating about the at least circumferential surface part of the one member at least some of the helical convolutions deformed during the deforming step and collecting the at least some helical convolutions generally in an axial stack thereof on the pin parts extending beyond the at least circumferential surface part of the one member, respectively.