The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 2022
Filed:
Jul. 18, 2018
Aetna Group S.p.a., Verucchio, IT;
Mauro Cere', Verucchio, IT;
AETNA GROUP S.P.A., Verucchio, IT;
Abstract
A wrapping machine for wrapping a product with a plastic film includes a frame, a supporting ring rotatably supported by the frame and rotated around a wrapping axis by a driving device, an unwinding unit fixed to the supporting ring and supporting a reel of film, pre-stretching rollers rotating about longitudinal axes and cooperating with each other to unwind and stretch the film, and a pre-stretching motor fixed to the frame and coupled to, and arranged to rotate, the pre-stretching rollers through a respective transmission assembly. The transmission assembly includes a driving ring rotatably supported by the frame and rotated about the wrapping axis by the pre-stretching motor through a friction roller, and a driving belt wound around, and rotated by, the driving ring and coupled to one pre-stretching roller to rotate the pre-stretching rollers when the driving ring is rotated by the pre-stretching motor.