DIE CAM UNIT PROVIDED WITH AUXILIARY RETURN DEVICE
FIG7 is a view illustrating a movement procedure of the cam slider according to the present invention
In the state in which a panel to be punched is mounted on the jig 14, as illustrated in FIG7, when the entire cam base 20 moves downwards, the slide groove 31 in the lower surface of the cam slider 30 is brought into contact with the slide plate 41 on the upper surface of the cam driver 40. Thereafter, when the cam base 20 continuously moves downwards, the cam slider 30 is guided to move in the rightward direction in the drawing, so that the return spring 32 is elastically compressed.
view
51
pressure surface
14
jig
30
cam slider
20
cam base
40
cam driver
16
punching pin
50
pressure member
60
auxiliary return device
32
return spring
['1. A mold cam unit having an auxiliary return device, the mold cam unit comprising: a cam base (20) comprising a slide portion formed in an installation space defined in a lower portion of a box-shaped body; a cam slider (30) located in the space of the cam base (20) and comprising therein a return spring (32) so as to reciprocatingly move along the slide portion; a cam driver (40) comprising a slide plate (41) mounted on an upper surface thereof to guide a lower slide groove (31) in the cam slider (30) to enable movement of the cam slider (30); a pressure member (50) provided on a lower surface of the cam slider (30) and comprising a downwardly bent pressure surface (51); and the auxiliary return device (60) provided on a side surface of the cam driver (40) that faces the pressure surface (51) and configured to come into contact with the pressure surface (51) via forward movement of the cam slider (30), thereby being elastically compressed.']