Package making – With contents treating – Reshaping
Patent
1997-08-29
2000-05-09
Kim, Eugene L.
Package making
With contents treating
Reshaping
53531, 53535, 53536, 53540, B65B 124
Patent
active
060586842
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to an apparatus for packaging article goods forming a stack. Article goods is understood to mean goods consisting of single items of thin planar configuration, generally paper goods. The paper goods can be for example envelopes. In the following description and appended drawings, the invention will be presented as part of the production process of envelopes.
BACKGROUND OF THE INVENTION
For packaging paper goods forming a stack into boxes in batches of a certain size, apparatuses are used, in which the goods to be packaged are transferred by a conveyor as a continuous stack from the manufacturing process into a separation zone to be further divided into stack portions which will be moved into packaging boxes for the respective goods. Such an apparatus is known from Finnish Patent No. 87438 and also from U.S. Pat. No. 3,562,775. The principle in the solution according to the Finnish patent is the fact that the stack portion to be packaged is pushed directly from the separation zone into a packaging box with at least one open wall.
The stack portion is pushed into the packaging box by a transfer device comprising a rail placed transversely to the direction of travel of the goods stacks after the separation zone, and a movable pusher supported to the rail. The pusher is arranged to move in a perpendicular direction across the travel path of the stack, and its one end extends in the direction of the stack to a point where a stack portion to be packaged has been separated by separator elements included in the apparatus. By means of the pusher, the stack portion is pushed into a box situated at the same height and having an open wall on the side of the stack portion. The empty box is placed into the filling station manually or by machine. The most problematic disadvantage of this solution is that when the stack portion is pushed into the open box, the pusher cannot penetrate into the box but only to the edges of its open wall. Consequently, the solution performs poorly in a case when two or more stack portions are to be placed into the box, one after the other. To pack the paper goods in a sufficiently dense state into the packaging box, it is pressed by moving backwards a stack support supporting the stack in front of the same. Further, guides placed partly inside the box must be used for guiding the dense stack.
SUMMARY OF THE INVENTION
The above-mentioned disadvantages related to the known solutions of the prior art can be eliminated and thus the state of the art can be improved by using an apparatus according to the present invention.
In the solution according to the invention, the stack of goods to be packaged can be placed into a packaging box while being pressed by a gripper, wherein the jaws have simultaneously a guiding function. It is possible to adjust the point of delivery of the stack of goods in the box in the travel direction of the stack, before final placing of the stack portion in the package box. An important advantage of the present invention is the fact that the apparatus can be used for packaging each item irrespective of the number of stack portions in the package box or their order of packaging. These features make it possible to use the same apparatus for handling larger varieties of paper goods to be packaged, such as envelopes, and of package boxes, as will be disclosed below. The fact that the stack of goods to be packaged is placed into the box by a gripper moving parallelly to the base supporting the stack portion from below, contributes to the reliability of the apparatus, because a collision of the stack to be transferred with the edges of the box can be prevented, and no separate guides are necessary.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following description, the invention will be described in detail with reference to the appended drawings, in which
FIG. 1 shows the apparatus in a perspective view,
FIG. 2 shows the transfer arrangement of the apparatus seen from behind,
FIG. 3 shows the transfer arrangement of the apparat
REFERENCES:
patent: 3562775 (1971-02-01), Mullins
patent: 4614511 (1986-09-01), Verhoef
patent: 4879862 (1989-11-01), Nolte et al.
Jomet Oy
Kim Eugene L.
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