Winding – tensioning – or guiding – Convolute winding of material – With spool loading or coil removal
Reexamination Certificate
1999-05-21
2001-05-29
Matecki, Katherine A. (Department: 3653)
Winding, tensioning, or guiding
Convolute winding of material
With spool loading or coil removal
C242S535400, C242S562000, C242S527000
Reexamination Certificate
active
06237870
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a device for removing packaging material from a web roll. More specifically, the present invention relates to a device for automatically removing packaging material covering the outer perimeter of a web packaging roll.
Rolls in which long sheets of single-piece webs, such as paper and metal foil, or composite sheets, such as laminated film, are rolled around a hollow core. These rolls are used in a variety of ways in a variety of different fields. For example, in rotary offset presses and rotary letter presses, the web to be printed is wrapped as a roll (hereinafter referred to as a web roll) and mounted in a web feeding device, feeding the web off the web roll.
A packaging material is rolled around an outer perimeter surface to cover the web roll. This packaging material prevents the web roll from becoming damaged or dirty when it is transported from a paper plant to a printing plant. When the web roll arrives at the printing plant, the packaging material must be removed before the web roll is used. The removal of the packaging material from the web roll is performed manually by a worker. The manual removal of the packaging material from the web roll takes time and reduces efficiency. The worker must also perform the complicated and tedious task of rolling up the packaging material removed from the web roll and disposing of it.
OBJECTS AND SUMMARY OF THE INVENTION
An object of the present invention is to provide a device to remove packaging material from a web roll which overcomes the foregoing problems.
A further object of the present invention is to provide a device to remove packaging material from a web roll which automatically removes the packaging material covering the outer perimeter surface of a web roll.
A further object of the present invention is to provide a device to remove packaging material from a web roll which reduces the time and labor involved to remove the packaging material.
Briefly stated, the present invention provides a cutting device and a wedge shaped separating member useful for cutting a packaging material wrapped around an outer perimeter surface of a web roll. The separating member is inserted under the packaging material. A cutting blade is fixed above the separating member to provide for the cutting of the packaging material when the cutting device and separating member are moved along a lateral axis of the web roll. The cut packaging material is completely separated by a second cutting device. The separated packaging material is then rolled and compacted. The result is an automated device which saves time and labor when removing packaging material from a web roll. Furthermore, the removed packaging material is compact, providing for reduced storage and disposal space.
According to an embodiment of the present invention, there is provided a device for removing a packaging material covering an outer perimeter surface of a web roll comprising a cutting device disposed to move along a lateral axis of the web roll, cutting at least the packaging material using a packaging material cutting blade, a separating member moving in tandem with the cutting device, inserting at a point under the packaging material from a lateral end, the separating member separating at least the packaging material from the web roll, and rolling means for rolling up the packaging material cut by the cutting device to produce a loose roll of packaging material.
According to a further embodiment of the present invention, there is provided an arcuate roll-up device comprising means for feeding at least a leading edge of a web to the roll-up device, and means for directing the leading edge along a reentrant path, whereby a roll is formed.
According to still a further embodiment of the present invention, there is provided a device for removing a packaging material covering an outer perimeter surface of a web roll comprising means for cutting at least the packaging material parallel to an axis of the web roll, means for directing a leading edge of at least the packaging material from the web roll into a feeding means, the feeding means including means for directing separated packaging material into a rolling means, and the rolling means including means for rolling the separated packaging material from the feeding means into a loose roll.
The above, and other objects, features, and advantages of the present invention will become apparent from the following description read in conjunction with the accompanying drawings, in which like reference numerals designate the same elements.
REFERENCES:
patent: 2638725 (1953-05-01), Hurter et al.
patent: 4550881 (1985-11-01), Boardman
patent: 4821971 (1989-04-01), Watanabe et al.
patent: 5080297 (1992-01-01), Blaimschein
patent: 5421535 (1995-06-01), Hemmert et al.
patent: 196 07 541C (1997-07-01), None
patent: 55-31774 (1980-03-01), None
patent: 63-317431A (1989-04-01), None
Kabushiki Kaisha Isowa Hooperswift
Matecki Katherine A.
Morrison Law Firm
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