A modular die for blanking a sheet configured for manufacturing individual blanks successively by a stroke of a ram of a press on at least one tool lower part and at least one tool upper part for the blanks, the die comprising:
- a frame lower part configured for being supported by a lower bed of a press, and a frame upper part configured for being displaced by the ram of a press, and the frame upper part configured for being displaced by the ram of the press downwards towards the frame lower part, the frame lower part and the frame upper part guided vertically in relation to each other along frame guide pillars extending between the frame lower part and the frame upper part;
- wherein the die has at least one tool lower part and at least one tool upper part placed in a gap between the frame lower part and the frame upper part, the at least one tool lower part and the at least one tool upper part capable of being extracted from and inserted into the gap, and the gap having a position of insertion and extraction of the at least one tool lower part and the at least one tool upper part;
- wherein the at least one tool lower part and the at least one tool upper part are void of fixtures extending between the at least one tool lower part and the at least one tool upper part and the frame lower part and the frame upper part, respectively, when the at least one tool lower part and the at least one tool upper part are placed in the gap between the frame lower part and the frame upper part;
- wherein the tool lower part and the tool upper part, when placed in the gap between the frame lower part and the frame upper part, is maintained in a position in the gap by at least one first fixation part and at least one second fixation part;
- the at least one first fixation part provided on one of the frame lower part and frame upper part at a position distant from the position of insertion or extraction of the at least one tool lower part and the at least one tool upper part;
- the at least one second fixation part provided on one of the frame lower part and frame upper part at a position proximate to the position of introduction or extraction of the at least one tool lower part and the at least one tool upper part into the gap;
- wherein part of a first lateral surface of at least one of the tool lower part and the tool upper part has a first selected geometry;
- and
- wherein part of a lateral surface of the at least first fixation part has a geometry congruent with the first selected geometry of the first lateral surface of the tool lower part or the tool upper part;
- and
- wherein part of a second lateral surface of at least one of the tool lower part and the tool upper part has a second selected geometry;
- wherein part of a lateral surface of the at least second fixation part has a geometry congruent with the second selected geometry of the second lateral surface of the tool lower part or the tool upper part;
- wherein the at least one second fixation part has one end which is detachable and displaceable in relation to one of the frame lower part and frame upper part, and has another end which is fixed to one of the frame lower part and frame upper part;
- wherein the at least one second fixation part, when the one end of the second fixation part is detached from the one of the frame lower part and frame upper part is capable of displacing between:
- a first position, wherein the at least one second fixation part allows the at least one tool lower part and the at least one tool upper part to be inserted into, or to be extracted from, the gap between the frame lower part and frame upper part;
- and
- a second position, wherein the at least one second fixation part prevents the at least one tool lower part and the at least one tool upper part from being inserted into, or from being extracted from the gap between the frame lower part and frame upper part, and
- wherein the at least one second fixation part, when the other end of the fixation part is fixed to one of the frame lower part and frame upper part, is maintained in the second position and is prevented from displacing from the second position to the first position.