Blanking station and flexible guide for guiding blanks in a blanking station
The invention relates to a blanking station comprising a blanking tool ( 12 ), at least one blank receiving unit ( 14, 16 ) for receiving and piling of blanks ( 20 ) in a blank collecting space ( 22 ) in a piling direction, and at least one flexible guide ( 18 ), located between the blanking tool ( 12 ) and the receiving unit ( 14, 16 ), wherein the flexible guide ( 18 ) comprises at least one guiding surface ( 32 ) adapted for guiding the blanks ( 20 ), being oriented in parallel to the piling direction and arranged so as to define an outer contour of the blank collecting space ( 22 ), and wherein the flexible guide ( 18 ) further comprises at least one flexible portion ( 28 ), located in proximity to the blank receiving unit ( 14, 16 ), wherein the flexible portion ( 28 ) is elastically deformable in a first direction along the outer contour of the blank collecting space ( 22 ) and wherein the flexible portion ( 28 ) has a lower stiffness in the first direction than in a second direction perpendicular to the outer contour of the blank collecting space ( 22 ) to avoid deflection of the flexible portion ( 28 ) into the blank collecting space ( 22 ) in case of collision with a blank receiving unit ( 14, 16 ). Furthermore, the invention relates to a flexible guide for guiding blanks ( 20 ) in a blanking station ( 10 ).
1 . A blanking station comprising:
a blanking tool,
at least one blank receiving unit for receiving and piling of blanks in a blank collecting space in a piling direction, and
at least one flexible guide, located between the blanking tool and the receiving unit,
wherein the flexible guide comprises at least one guiding surface adapted for guiding the blanks, being oriented in parallel to the piling direction and arranged so as to define an outer contour of the blank collecting space, and
wherein the flexible guide further comprises at least one flexible portion, located in proximity to the blank receiving unit,
wherein the flexible portion is elastically deformable in a first direction along the outer contour of the blank collecting space and wherein the flexible portion has a lower stiffness in the first direction than in a second direction perpendicular to the outer contour of the blank collecting space to avoid deflection of the flexible portion into the blank collecting space in case of collision with a blank receiving unit.
2 . The blanking station according to claim 1 , further comprising:
at least two blank receiving units,
wherein at least one of the two blank receiving units comprises a rack of movable rack swords for temporarily receiving and piling of blanks while the at least one other receiving unit is evacuating a pile of blanks from the blanking station,
wherein the rack swords are movable in a direction perpendicular to the piling direction and wherein the flexible portion of the flexible guide is adapted to elastically deform in case of collision with a rack sword.
3 . The blanking station according to claim 2 , wherein the flexible portion of the flexible guide extends, seen from the blanking tool, beyond the upper surface of at least one rack sword.
4 . The blanking station according to claim 2 , wherein the rack swords are adapted to move in a direction parallel to the guiding surface of the flexible guide and perpendicular to the piling direction.
5 . The blanking station according to claim 1 , further comprising at least one rigid guide with at least one guiding surface for guiding blanks, being oriented in parallel to the piling direction.
6 . The blanking station according to claim 5 , wherein the guiding surface of the flexible guide is oriented perpendicularly to the guiding surface of the rigid guide.
7 . The blanking station according to claim 1 , further comprising a plurality of rigid portions surrounding the blank collecting space, wherein at least one flexible portion is connected to at least one rigid portion.