Injection mold device

An injection mold device comprising:

• a first matrix attached to a movable platen;
• a plurality of first cavity units attached to the first matrix;
• a second matrix attached to a stationary platen;
• a plurality of second cavity units selectively removably attachable to the first matrix during a mold-clamping state and to the second matrix during a mold-opening state;
• a self-holding member provided on each of the first cavity units for maintaining a clamping force between respective pairs of first and second cavity units during the mold-clamping state;
• a mold-opening member provided on the second matrix for removably attaching the second cavity units to the first matrix in the mold-clamping state;
• and a locking member attached to and relatively movable with respect to each of the second cavity units for selective engagement with the self-holding member during the mold-clamping state and with the mold-opening member during the mold-opening state.

An injection mold device comprising:

• a first matrix having at least one first cavity unit attached thereto;
• a second matrix having at least one second cavity unit removably attached thereto;
• first means for moving the first cavity unit in a first direction into engagement with the second cavity unit to define a mold-clamping state;
• a movable locking member provided on the second cavity unit;
• self-holding means associated with first cavity unit for engagement with the locking member to maintain the first cavity unit and the second cavity unit in the mold-clamping state;
• and means associated with the second matrix for removably attaching the first cavity unit and the second cavity unit in the mold-clamping state.

An injection mold device comprising:

• a first matrix;
• a plurality of first cavity units attached to the first matrix, each cavity unit having a retaining member;
• a second matrix;
• a plurality of second cavity units selectively removably attached to the first matrix during a mold-clamping state and to the second matrix during a mold-opening state, each of the second cavity units having a retaining member;
• means for selectively moving respective pairs of first and second cavity units between an injection position and a cooling position;
• a plurality of rotating members each rotatably held in a respective one of the second cavity units, each rotating member having retaining portions for respective and selective engagement with the retaining member of a respective first cavity unit and the retaining member of a respective second cavity unit;
• and means for rotating the rotating members.