Cellophaning machine wrapping and sealing method
AssigneeG.D Societa' Per Azioni
InventorsFiorenzo Draghetti, Roberto Osti
Life of this patent
Estimating the term…
Abstract
A wrapping and sealing method for a cellophaning machine, whereby a first conveying device, defined by two spaced parallel disks and having pockets, provides for forming tubular wrappings about packets by feeding the packets and respective sheets of wrapping material in steps through at least one sealing station, and is engaged by a loop conveyor extending partially between the two disks, and which successively extracts the partially wrapped packets from the pockets on the first conveying device and, after folding the ends of each tubular wrapping on to the respective packet, feeds the packets into respective pockets on a second conveying device having end sealing devices.
Claims16
A method for wrapping and sealing packets (3) in respective sheets of wrapping material (9), said method comprising the steps of:
- a) feeding a packet (3) and a respective sheet of wrapping material (9) into a first pocket means (6) of a first conveying means (5);
- b) folding and sealing said respective sheet of wrapping material (9) around said packet (3) while the whole is seated in said first pocket means (6) and transported by said first conveying means (5) so as to produce a respective tubular wrapping (10) having open opposite end portions;
- c) transferring said packet (3) and said respective tubular wrapping (10) from said first pocket means (6) of said first conveying means (5) to a second conveying means (18 or 36);
- d) folding said open opposite end portions of said respective tubular wrapping (10) against the associated ends of said packet (3) while the whole is transported by said second conveying means (18 or 36) so as to produce a respective folded wrapping having folded opposite end portions;
- e) transferring said packet (3) and said respective folded wrapping from said second conveying means (18 or 36) into a second pocket means (31) of a third conveying means (19);
- and
- f) sealing said folded opposite end portions of said respective folded wrapping over the associated ends of said packet (3) with end sealing means (30) that are transported by said third conveying means (19) while the whole is seated in said second pocket means (31) and transported by said third conveying means (19) so as to produce a respective sealed wrapping.
A machine for wrapping and sealing packets (3) in respective sheets of wrapping material (9), said machine comprising:
- a) first conveying means (5) having a first pocket means (6) for accepting a packet (3) and a respective sheet of wrapping material (9) therein;
- b) means for folding and sealing said respective sheet of wrapping material (9) around said packet (3) while the whole is seated in said first pocket means (6) and transported by said first conveying means (5), said means for folding and sealing said respective sheet of wrapping material (9) producing a respective tubular wrapping (10) having open opposite end portions;
- c) second conveying means (18 or 36) for transporting said packet (3) and said respective tubular wrapping (10) thereon upon receipt thereof from said first pocket means (6) of said first conveying means (5);
- d) means for folding said open opposite end portions of said respective tubular wrapping (10) against the associated ends of said packet (3) while the whole is transported by said second conveying means (18 or 36), said means for folding said open opposite end portions of said respective tubular wrapping (10) producing a respective folded wrapping having folded opposite end portions;
- e) third conveying means (19) having a second pocket means (31) for accepting said packet (3) and said respective folded wrapping therein upon receipt thereof from said second conveying means (18 or 36);
- f) means for sealing said folded opposite end portions of said respective folded wrapping over the associated ends of said packet (3) while the whole is seated in said second pocket means (31) and transported by said third conveying means (19), said means for sealing said folded opposite end portions of said respective folded wrapping being transported by said third conveying means (19), said means for sealing said folded opposite end portions of said respective folded wrapping producing a respective sealed wrapping.
Dependencies are inferred from the claim text.