Method and device for the packaging of flat objects

A device for packaging flat objects (4) using a packaging material (7) in the shape of a quasi-endless web, the device comprising:

• means (5, 9) for supplying objects to be packaged (4) and for removing packaged objects (4′),
• means (6) for supplying the packaging material (7),
• means for forming, from the packaging material (7), a string of bags (7′) compartments (3), each bag of said string of bags having three open sides and one closed, wherein the three open sides comprise an opposite open side, opposite to the one closed side, and two lateral sides,
• means for conveying the bags (7′) in a conveying direction,
• means for severing the bags (7′) from the string of bags, and
• means for sealing the open sides of the bags (7′) by producing appropriate seams,
• wherein the means for forming the bags (7′) and the means for conveying the bags (7′) are arranged such that the opposite open side a corresponding seam keep an unchanged position independent of the format of the object to be packaged (4),
• wherein at least one of the means for forming the string of bags (7′), which adjusts a depth of the bags, and the means for sealing the bags (7′), which adjusts a distance between two lateral seams, is adjustable, and
• wherein the means for forming the string of bags (7′) comprises drawing-in members (8.2) of an adjustable length and cooperating with distal ends of rotating compartment elements (2), and wherein the securing elements (22) are arranged in the conveying compartments (3) formed by the compartment elements (2).

A device for packaging flat objects (4) using a packaging material (7) in the shape of a quasi-endless web, the device comprising:

• means (5, 9) for supplying objects to be packaged (4) and for removing packaged objects (4′),
• means (6) for supplying the packaging material (7),
• means for forming, from the packaging material (7), a string of bags (7′) that have three open sides and one closed side, wherein the three open sides comprise an opposite open side, opposite to the one closed side, and two lateral sides,
• means for conveying the bags (7′) in a conveying direction,
• means for severing the bags (7′) from the string of bags, and
• means for sealing the open sides of the bags (7′) by producing appropriate seams,
• wherein the means for forming the bags (7′) and the means for conveying the bags (7′) are arranged such that the opposite open side and a corresponding seam keep an unchanged position independent of the format of the object to be packaged (4),
• wherein at least one of the means for forming the string of bags (7′), which adjusts a depth of the bags, and the means for sealing the bags (7′), which adjusts a distance between two lateral seams, is adjustable,
• wherein the means for forming the string of bags (7′) comprises circulating guides (8.7, 8.8), wherein the guides are adapted to alternately act from two opposing sides of the packaging material (7) and to be displaced relative to each other and transversely to a circulation direction, and wherein each alternate guide (8.7) is equipped with securing elements (27).

A device for packaging flat objects (4) using a packaging material (7) in the shape of a quasi-endless web, the device comprising:

• means (5, 9) for supplying objects to be packaged (4) and for removing packaged objects (4′),
• means (6) for supplying the packaging material (7),
• means for forming, from the packaging material (7), a string of bags (7′) wherein the bags of said string are formed into continuously rotating conveying compartments (3), or are formed outside of said compartments and are then supplied to said compartments, each bag of said string of bags having three open sides and one closed side, wherein the three open sides comprise an opposite open side, opposite to the one closed side, and two lateral sides,
• means for conveying the bags (7′) in a conveying direction,
• means for severing the bags (7′) from the string of bags, and means for sealing the open sides of the bags (7′) by producing appropriate seams,
• wherein the means for forming the bags (7′) and the means for conveying the bags (7′) are arranged such that the opposite open side and a corresponding seam keep an unchanged position independent of the format of the object to be packaged (4),
• wherein at least one of the means for forming the string of bags (7′), which adjusts a depth of the bags, and the means for sealing the bags (7′), which adjusts a distance between two lateral seams, is adjustable,
• wherein the rotating conveying compartments (3) are equipped with sealing elements (21.1, 21.2) that are moveable against each other in a controlled manner, wherein the sealing elements (21.1, 21.2) are adapted to produce three seams corresponding with the open sides of the bags, and wherein at least some of the sealing elements (21.1, 21.2) of each said conveying compartment are simultaneously adjustable to various distances between lateral seams.