Method and apparatus for wrapping a package and forming folds of

Details Method and apparatus for wrapping a package and forming folds of Method and apparatus for wrapping a package and forming folds of

1996-05-22

1998-07-07

Johnson, Linda

Package making

Methods

Applying a partial cover

53449, 53587, 53211, 533727, B65B 1104

Patent

active

057750564

DESCRIPTION:

BRIEF SUMMARY
The invention relates to a wrapping method and necessary apparatus for utilization of the method in accordance with the introduction in patent claim 1.
Previously is known a wrapping system by the EP publication No. 0 180 517, where wrapping is made with plastic film in rolls. Wrapping of a package is started from its top surface, whereby the system has devices by means of which the front end of the sheet is pressed onto the package and kept there. For wrapping the package, the sheeting has to be guided by special drivers down from the top surface and wound into a wrap-around pack sheeting.
In the U.S. Pat. No. 3,507 089 a wrapping apparatus is published that carries out wrapping without rotating the object and with wrapping material broader than the package. Also the foldings of wrapper ends are made by the apparatus.
Neither of the above presented solutions applicable in cases where paper is used as wrapper. In using paper it is not possible to make a turn without tearing the paper, when must be folded from the package top surface in order to make a wrap-around cover. Anyhow, paper is not suitable for use in web form as package protecting wrapper. A solution according to the U.S. patent is not suitable for wrapping a package on a pallet.
With the wrapping method and wrapping apparatus according to this invention a decisive improvement of the above presented wrapping methods is achieved and the invention is characterized in what is presented in the enclosed patent claims.
The most important advantages of the invention can be considered the applicability of recycling wrapper, such as paper, to mechanical wrapping of packages, when the different stages of wrapping have been rearranged. Wrapping can be started without gumming the wrapper to the goods and the invention comprises the apparatus by means of which the wrapper is wound around the package with certain, appropriate tension. The number of wrap-arounds will amount only to a fraction of what is the case by using film sheeting, which means increased packing speed and one also gets rid of the heating phase. Protection of package top side is easily done with paper or similar materials, because they can be gummed, which is a problem with plastic wrappers, by the use of which the package top must be protected by some other means.
In the following the invention is described in detail with reference to the enclosed drawing, where
FIG. 1 is the start of the wrapping procedure.
FIG. 2 is the wrapping around a package on pallet.
FIG. 3 is the wrapping folded onto package.
FIG. 4 is a wrapped package on pallet.
FIG. 5 is the wrapping station viewed from above.
FIG. 6 is the wrapper folding apparatus viewed from above.
FIG. 1 shows a wrapper roll 1 in upright position, a rectangular package 5 on a pallet 7 and wrapper 2 being fed out from roll 1. Wrapper 2 is broader than the height of package 5. Wrapping is started by folding the paper upper edge 4 onto package 5. In the upper edge an incision is made, whereat fold 4 can be made separately. Fold 4 is pressed against package 5 by some known means, for instance a press descending to the top, whereby wrapping around the package can be started by rotating the pallet 7. From the start, wrapper 2 is in proper position with regard to the package and, with a rectangular package, even inelastic wrapper settles properly around the package. Rotation is continued in order to produce sufficient wrapper overlapping. The incision is not necessary, the upper edge can be also folded onto the package without an incision, whereby, however, some creasing cannot be avoided.
In FIG. 2 the wrapper is cut of f and on the wrapper inside, close to the cut edge, glue has been sprayed, seam 6 sealed and the package wrapped. FIG. 3 shows the upper edges 8 of wrapper folded onto package 5 and in FIG. 4 the upper edges 9 are also folded onto the package. Glue can be used to fix the folds. Finally, with glue it is easy to fix, for instance, a separate paper cover or similar on the package.
FIGS. 1-4 show the embodiment of the wrapping procedure

REFERENCES:
patent: 209985 (1878-11-01), Rettig
patent: 1351809 (1920-09-01), Sutherland
patent: 2196666 (1940-04-01), Moore
patent: 3035938 (1962-05-01), Schwinger
patent: 3660958 (1972-05-01), Garrison
patent: 3763629 (1973-10-01), Carlstrom et al.
patent: 3924375 (1975-12-01), Brenner et al.
patent: 4362001 (1982-12-01), Cockerham, Jr. et al.
patent: 4450668 (1984-05-01), Grossi
patent: 4821489 (1989-04-01), Macleod et al.
patent: 5005335 (1991-04-01), Yourgalite et al.
patent: 5131209 (1992-07-01), Schreiber et al.

Affiliated with

Also associated with

Rating

Method and apparatus for wrapping a package and forming folds of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for wrapping a package and forming folds of, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for wrapping a package and forming folds of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1194038