Sheet feeding or delivering – Feeding – Separators
Patent
1995-11-02
1997-09-30
Milef, Boris
Sheet feeding or delivering
Feeding
Separators
271 301, 271157, 414794, 4147958, 198409, 198604, 1984686, B65H 308, B65H 126
Patent
active
056719167
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an automatic sheet loader.
BACKGROUND ART
Conventionally, packaging containers which are unloaded from a filling machine after being filled with a liquid food or the like are transferred to a cardboard packer in which a predetermined number of packaging containers are stacked in a packing pattern and placed in a case made of a sheet.
The case is produced by folding a blank sheet formed by cutting a corrugated cardboard sheet or the like into a predetermined shape by a die cutter. The shape of the blank sheet varies in accordance with the dimension and number of packaging containers to be placed in the case, and the manner of packaging. In the case of a tray sheet, the sheet has a shape to cover two opposing side surfaces of a group of packaging containers which have been stacked on the sheet in a predetermined packing pattern. In the case of a carrier sheet, the sheet has a shape to form grips for transportation as well as to cover two opposing side surfaces of a group of packaging containers which have been stacked on the sheet in a predetermined packing pattern. In the case of a wrap-around sheet, the sheet has a shape to wholly cover a group of packaging containers which have been stacked on the sheet in a predetermined packing pattern.
The cardboard packer is provided with a magazine slanted at about 45.degree.. For example, 50 sheets are bundled to form a group of sheets, and the group of sheets is manually set into the magazine. The cardboard packer is also provided with a suction device which takes out a single sheet at a time from the magazine by a suction force, and places it on a table of the machine. Subsequently, a group of packaging containers which have been conveyed by a conveyer is placed on the sheet, and is wrapped by folding the sheet by a folding machine.
Since the group of sheets is placed in the magazine which is inclined at 45.degree., the load imposed on the bottom sheet can be reduced, thereby facilitating the taking out of the sheets by the suction device.
However, the conventional cardboard packer requires a cumbersome work because the group of sheets must be manually set into the magazine.
Moreover, in the case where the group of sheets set into the magazine is replaced with a different group of sheets because of changes in the dimension or number of packaging containers in the group or the manner of packaging, it is necessary to watch the operation to prevent the previous group of sheets and the new group of sheets from being used in mixture.
An object of the present invention is to solve the problems involved in the conventional cardboard packer, and to provide an automatic sheet loader which can automatically set a group of sheets into a cardboard packer, and can easily replace the group of sheets when the dimension or number of packaging containers to be packed, or the manner of packaging is changed.
DISCLOSURE OF THE INVENTION
To achieve the above-described object, an automatic sheet loader according to the present invention is provided with a sheet transfer path along which a group of sheets is transferred, a swinger which is pivotably supported at the lowermost end of the sheet transfer path, and which receives the group of sheets at a horizontal position and then pivots toward a magazine section to take an oblique position, drive means for swinging the swinger, a magazine which is disposed slanted and into which the group of sheets dropped from the swinger is set, and a suction device for taking out each sheet of the group from the magazine by a suction force.
The swinger has a stopper for temporarily holding the group of sheets.
In another aspect of the present invention, the stopper is swingably supported by the swinger via a shaft, and takes a hold position for holding a group of sheets and a release position for releasing and dropping the group of sheets.
In still another aspect of the present invention, the stopper is provided with a pair of taper keys having opposing slant surfaces. The stopper is fixed on the
REFERENCES:
patent: 3591018 (1971-07-01), Nalbach
patent: 4343392 (1982-08-01), Ellis et al.
patent: 4618054 (1986-10-01), Muller
patent: 5275527 (1994-01-01), Turra et al.
patent: 5304030 (1994-04-01), Neri
patent: 5435432 (1995-07-01), Tacchi et al.
Milef Boris
Tetra Laval Holdings & Finance S.A.
LandOfFree
Automatic sheet loader does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automatic sheet loader, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic sheet loader will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2252153