US 12,233,507 B2
Apparatus for changing an abrasive sheet in an abrading machine
Luca Bosio, Pisa (IT); and Renzo Valleggi, Pontedera (IT)
Assigned to FABRICA MACHINALE S.R.L., Cascina (IT)
Filed by Fabrica Machinale S.R.L., Cascina (IT)
Filed on Jan. 10, 2020, as Appl. No. 16/739,961.
Application 16/739,961 is a continuation of application No. 15/120,340, granted, now 10,532,444, issued on Jan. 14, 2020, previously published as PCT/IB2015/051160, filed on Feb. 17, 2015.
Claims priority of application No. PI2014A000015 (IT), filed on Feb. 20, 2014.
Prior Publication US 2020/0147754 A1, May 14, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. B24B 53/00 (2006.01); B24B 23/03 (2006.01); B24B 27/00 (2006.01); B24B 41/00 (2006.01); B24D 9/08 (2006.01)
CPC B24B 53/00 (2013.01) [B24B 23/03 (2013.01); B24B 27/0038 (2013.01); B24B 41/00 (2013.01); B24D 9/08 (2013.01); B24D 9/085 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A system for changing an abrasive sheet in a sanding machine comprising:
a sanding machine having a support body with an engagement surface arranged to engage with the abrasive sheet and a handling device for handling spatially the support body according to at least two degrees of freedom;
a removal station having a gripping element configured to grip the abrasive sheet in order to disengage the abrasive sheet from the support body; and
a computing device to compute the spatial orientation of the support body, and the handling device arranged to bring the support body to a position having a known spatial orientation,
wherein the support body comprises one or more suction holes and the handling device is arranged to position the support body at the computing device for computing the orientation, with the support body free to rotate about a rotation axis, the computing device including an actuator arranged to cause a rotation of the support body about the rotation axis to place the support body in the position having known spatial orientation, the actuator arranged to transmit movement to one or more rollers positioned at a radial distance from the rotation axis corresponding to a radial distance of said one or more suction holes.