Package making – Methods – Wrapping contents including cover forming
Patent
1988-06-10
1990-04-03
Sipos, John
Package making
Methods
Wrapping contents including cover forming
53 64, 53211, 53587, 53389, B65B 1104
Patent
active
049129112
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
This invention relates to machines for wrapping elongated objects such as large reels of web-like material.
For the sake of convenience, the invention will be described in relation to the wrapping of a cylindrical reel of paper using polyethylene or other stretchable film. However, it is to be understood that the invention is not limited thereto as it may be applied to the wrapping of other elongated objects and may be concerned with the wrapping of non-stretchable material over elongated objects.
BACKGROUND ART
It is known to wrap reels of paper in order to protect the paper during transportation and storage. Hitherto, such wrapping has taken place in a wrapping plane containing the axis of rotation of the reel which is rotated whilst the wrapping film is rotated about the reel.
In a conventional paper reel, the paper is wound on an axial hollow core adapted to receive lifting bars or fixing members such as ropes. The disadvantage of known wrapping techniques is that the wrapping film covers all of each end of the reel and thus access to the core is denied.
It is, therefore, an object of the present invention to provide a machine for wrapping elongated objects such as reels of paper wound on a core which leaves access to the axial core.
DISCLOSURE OF THE INVENTION
According to the invention there is provided a machine for wrapping an elongated object such as a cylindrical reel of paper, said machine comprising:
(i) means for loading the object so that its longitudinal axis is placed on an axis of rotation on the machine,
(ii) means for rotating the object about the axis of rotation,
(iii) a rotating wrapping head adapted to wind wrapping material endwise about the object,
(iv) means for tilting the wrapping head so that the endwise wrapping takes place in a plane at an angle to the axis of rotation of the object.
In a preferred form of the invention, a stretchable film such as polyethylene is wrapped around a reel having a central core. The angle of the wrapping plane to the axis of the core is selected according to the reel length and core diameter as well as the width and physical proportion of the wrapping film.
Such a wrapping machine may be constructed in various sizes and configurations and with varying degrees of automatic control.
DESCRIPTION OF PREFERRED EMBODIMENT
In order that the invention may be more readily understood and put into practice, reference will now be made to the accompanying drawings in which:
FIG. 1 is a side elevational schematic diagram of a wrapping line incorporating a wrapping machine according to one embodiment of the invention,
FIG. 2 is an end view from the feed end of the wrapping line shown in FIG. 1,
FIG. 3 is an end view from the unloaded end of the wrapping line shown in FIG. 1,
FIG. 4 is a cut away, simplified perspective view of the feed control system of the wrapping machine shown in FIGS. 1 to 3,
FIG. 5 is a simplified end view of the height adjustment system of the wrapping machine shown in FIGS. 1 to 3,
FIG. 6 is a cut away perspective view of the tilting system of the wrapping machine shown in FIGS. 1 to 3,
FIG. 7 is a simplified end view of the elevating mechanism of the wrapping machine shown in FIGS. 1 to 3,
FIG. 8 is a cut away perspective view of the wrapping arm of the wrapping machine shown in FIGS. 1 to 3,
FIG. 9 is a further cut away perspective view of the wrapping arm shown in FIG. 8,
FIG. 10 is a simplified end view from the feed end of the wrapping machine shown in FIGS. 1 to 3 with a reel at the commencement of wrapping,
FIG. 11 is a perspective view of a reel being wrapped by the wrapping machine of FIGS. 1 to 3 showing the wrapping path, and,
FIG. 12 is a view corresponding to FIG. 11 with the reel fully wrapped.
The wrapping machine shown in the drawings is designed to wrap reels of paper of varying diameter and length and as such adjusts automatically to any reel within predetermined dimensional tolerances. It is intended that the wrapping machine be installed downstream from a slitting machine which slits an
REFERENCES:
patent: 1588930 (1926-06-01), Ashmead
patent: 1654258 (1927-12-01), Hooper
patent: 3928939 (1975-12-01), Edwards et al.
patent: 4184307 (1980-01-01), Kataoka
patent: 4281500 (1981-08-01), Mueller et al.
patent: 4565051 (1986-01-01), Back
patent: 4590746 (1986-05-01), Humphrey
G.D. Engineering Pty. Limited
Sipos John
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