US 12,109,750 B2
Device for controlling the movement of a movable element for a machine for manufacturing plastic receptacles
Franck Lhomme, Octeville-sur-Mer (FR); and Jocelyn Michel, Octeville-sur-Mer (FR)
Assigned to SIDEL PARTICIPATIONS, Octeville-Sur-Mer (FR)
Appl. No. 17/770,378
Filed by SIDEL PARTICIPATIONS, Octeville-sur-Mer (FR)
PCT Filed Oct. 26, 2020, PCT No. PCT/EP2020/080017
§ 371(c)(1), (2) Date Apr. 20, 2022,
PCT Pub. No. WO2021/078994, PCT Pub. Date Apr. 29, 2021.
Claims priority of application No. 1911893 (FR), filed on Oct. 24, 2019.
Prior Publication US 2022/0379541 A1, Dec. 1, 2022
Int. Cl. B29C 31/08 (2006.01); B29C 49/42 (2006.01); B29C 49/58 (2006.01); B29C 49/78 (2006.01); B29L 31/00 (2006.01)
CPC B29C 49/42378 (2022.05) [B29C 31/085 (2013.01); B29C 49/42382 (2022.05); B29C 49/42384 (2022.05); B29C 49/58 (2013.01); B29C 49/78 (2013.01); B29C 2049/5872 (2013.01); B29C 2049/7878 (2022.05); B29L 2031/712 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A plastic container manufacturing machine, comprising:
a chassis having a camway with a cam and a countercam;
an element which is movable relative to the chassis, the element bearing a roller interacting with the camway so as to cause displacement of the movable element; and
a device for controlling the displacement of the movable element,
wherein the countercam has at least one portion which is movable relative to the chassis, the control device comprising a distance sensor that continuously measures the distance of the movable portion of the countercam relative to a fixed reference point on the chassis, and
wherein the machine further comprises a computer unit coupled to the sensor, the computer unit being parametrized to identify, for each cycle of the machine, a variation in the displacement of the movable portion of the countercam relative to a predetermined displacement, to compare said variation to a range of predetermined authorized variations, and to generate a warning when said variation is outside of the range of authorized variations.