Package making – Partial cover application – Band or tube
Patent
1986-11-17
1987-09-15
Sipos, John
Package making
Partial cover application
Band or tube
53210, B65B 1304
Patent
active
046930604
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to an apparatus for wrapping a band once or several times around a stack, or the like, of goods, for example a palletized load, wherein said stack remains stationary relative to the apparatus during the wrapping process, said band being dispensed from a wrapping apparatus which orbits around the stack.
2. Prior Art
U.S. Pat. No. 4,109,445 discloses an apparatus of this kind which may be used to wrap plastic film around palletized goods. This apparatus has a horizontal, driven arm which rotates above a pallet, the outer end of which is angled vertically downwards and on the vertical part of which is mounted a film dispensing reel the height of which is adjustable. The film dispensing reel orbits the goods on the pallet and wraps them spirally with strips of film by means of even height adjustment of the arm.
The film dispensing reel and the mechanism located in the vertical part of the arm to provide for the height adjustment of the reel, as set out in U.S. Pat. No. 4,109,445, are so heavy that it is necessary to provide additional supports for the arm. This is a disadvantage since it renders the already laborious construction even more complicated and costly. A further disadvantage lies in the fact that a relatively large amount of space is required to transport the entire reel around the pallet. Furthermore, the apparatus lacks a means of securing the end of the strip of film with the result that manual means are clearly necessary here. Finally, the apparatus is specifically designed to wrap with relatively wide film and is not well suited for use with narrower bands, such as are used for securing purposes, not the least on account of the absence of a possibility for affixing and attaching the ends of the bands.
Devices operable to tie bands are known in the art, per se.
SUMMARY OF THE INVENTION
An object of the prsent invention is to provide a wrapping apparatus having none of the disadvantages of the known machine and which is, in particular, also suitable for wrapping using narrow bands for the purpose of securing stacks of goods.
This problem is solved according to the present invention by an apparatus for the single or multiple wrapping of a stack or the like of goods, with a band, said stack being stationary relative to the apparatus during the wrapping operation, said band being dispensed from a wrapping apparatus which orbits around the stack, characterised in that the wrapping apparatus has a wrapping arm with one horizontal part and one part angled vertically downwards, that the horizontal part is mounted on a vertical shaft, that the wrapping arm has means for guiding the band, that a band supply reel is linked to the horizontal part of the wrapping arm, that the wrapping arm is adjustable for height and that a band securing device of adjustable height is provided for securing and severing the band.
BRIEF DESCRIPTION OF THE DRAWINGS
One embodiment of the instant invention is illustrated in the accompanying drawings in which:
FIG. 1 is a view of an apparatus for the wrapping of stacked
goods on pallets, partly in section,
FIG. 2 is a side elevation and
FIG. 3 is a plan view of the same apparatus,
FIG. 4 shows a horizontal, ring arrangement of bands and,
FIG. 5 shows a criss-crossed arrangement of bands,
FIG. 6 shows an embodiment of the apparatus with a variant
for fitting the band supply reel.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The machine shown has a stand 1 through which passes a pallet conveyor 2. On this latter rests the pallet 29 laden with stacked goods 28 (FIG. 1).
Fitted adjustably by means of two vertical rails 7 to stand 1, on the same side of the pallet conveyor 2, are an upper carriage 5 as part of a wrapping apparatus 3 and a lower carriage 6 as part of a band securing means 4 (FIGS. 1 and 2). Both carriages 5, 6 are suspended on separate chain hoists 8, 9 serving as elevating means.
Above the chain hoist 8 for the upper carriage 5 is a chain drive wheel 10, and below it is a chain
REFERENCES:
patent: 658206 (1900-09-01), Collins
patent: 904223 (1908-11-01), Pickens
patent: 3160088 (1964-12-01), Bunn
patent: 3221642 (1965-12-01), Ayres
patent: 3930442 (1976-01-01), Buttner
patent: 4091723 (1978-05-01), Izawa
patent: 4109445 (1978-08-01), Shulman
patent: 4185548 (1989-01-01), Pierce
patent: 4235062 (1980-11-01), Lancaster
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