Automatic machine for punching and cutting wheel rims
AssigneeEisen XXI, S.L.
InventorJuan Ignacio Barandiaran Echeguia
Life of this patent
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Abstract
Machine for punching holes through a longitudinal sheet or wheel rim passing in a horizontal direction, using punches, and also for cutting said sheet to obtain sheet portions or pieces. The machine is characterized in that the punching and cutting operations are performed by a single power unit, such as an oleohydraulic cylinder (2) secured to a frame and positioned at the top in a vertical direction. The shaft of said cylinder is connected to a cutter-holding carriage (4) which, as it moves downwards to cut the sheet (10), brings with it an upper support means (19) that forms part of a punching device (6), the punches of which are guided on a lower front carriage (8) that also forms part of the punching device (6).
Claims11
AN AUTOMATIC MACHINE FOR PUNCHING AND CUTTING WHEEL RIMS, which is used for punching holes through a longitudinal sheet or wheel rim (10) that passes in a horizontal direction, using punches, and is also used for cutting said longitudinal sheet or wheel rim into small pieces, using a cutter, the machine comprising:
- a frame (1) having a transversal lower guide (5);
- independent movable butts (21);
- a cutter-holding carriage (4) having an upper guide (7);
- a punching device (6) having an upper support (19), a lower front carriage (8), punch-holders (15) and punches (15′) extending from the punch-holders (15), wherein the upper support (19) is coupled to the upper guide (7), wherein the lower carriage (8) is coupled to the transversal lower guide (5), and wherein the punch-holders (15) are guided on the lower front carriage (8) and coupled to the upper support (19);
- an oleohydraulic cylinder (2) having a shaft (3), wherein the oleohydraulic cylinder is positioned at a top of the frame (1) in a vertical direction, and the shaft (3) is connected to the cutter-holding carriage (4);
- wherein the punching and cutting operations are powered by a single oleohydraulic cylinder;
- wherein the downward movement of the shaft (3) causes the movement of the cutter-holding carriage (4) and the upper support (19) towards the sheet (10) to punch holes in the sheet (10) and then cut the sheet (10) into small pieces;
- wherein the movement of the punch-holders (15) and punches (15′) during the simultaneous downwards movement of the cutter-holding carriage (4) and of the upper support (19), depend on positions of the independent movable butts (21) which if the independent movable butts (21) are located between upper end bases of the punch-holders (15) and a plate (18) of the support (19), a completely downward movement of the punches (15′) will be allowed so that the punches (15′) punch holes in the sheet (10), whereas if such independent moveable butts (21) are not located between the upper end bases of the punch-holders (15) and the plate (18) of the upper support (19), the completely downward movement of the punches (15′) to punch holes will not be allowed because when the punches (15′) contact the sheet (10), the sheet (10) stops the downward movement of the punches (15′) while still allowing the downward movement of the cutter-holding carriage (4) and the upper support (19).
Dependencies are inferred from the claim text.