Patent ID: 8685308

Claim:
A method of automatically separating a diaphragm for a washing machine manufactured using an injection mold, the method comprising: separating a first core from a first intermediate core and a second intermediate core; moving a plurality of remainder first slide cores, which comprises a plurality of first slide cores excluding an uppermost first slide core, in an outward radial direction of the diaphragm, to cause an upper portion of the diaphragm to be caught between the uppermost first slide core and the second intermediate core; moving a plurality of second slide cores and a plurality of third slide cores to cause a lower portion of the diaphragm to be caught between the first intermediate core and a movable cam core disposed in a bottom part of a second core disposed opposite of the first core; moving the second intermediate core in an outward radial direction of the diaphragm to separate the upper portion of the diaphragm from the plurality of second slide cores, to cause the upper portion of the diaphragm to be released from the first intermediate core; and separating the cam core from the lower portion of the diaphragm, to cause the lower portion of the diaphragm to be released from the first intermediate core.