Package making – With cover-adjunct application or formation
Reexamination Certificate
2000-05-04
2001-09-04
Vo, Peter (Department: 3721)
Package making
With cover-adjunct application or formation
C053S135100, C053S520000
Reexamination Certificate
active
06282865
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to an apparatus for applying drinking straws to prefabricated packaging containers, comprising a rotary drive means for continuous belts of drinking straws wrapped in protective envelopes, guides for drinking straw belts and drinking straws, a conveyor for the packaging containers, a device for separating the drinking straws from the belt, and a device for applying the drinking straw to the side wall of the packaging container.
BACKGROUND OF THE INVENTION
Many single-use disposable packages for drinks are manufactured in so-called portion volumes, intended to be consumed direct from the package. The majority of these packages are provided with drinking straws in a protective envelope which is secured to the one side wall of the packaging container. The packages, which are preferably parallelepipedic in shape, are manufactured from a laminate with a core of paper or paperboard, with different layers of thermoplastics and possibly aluminium foil. On the one wall of the packaging container—most often the top wall—a hole has been punched out in the core layer and this hole is covered by the other layers of the laminate, which makes it possible to penetrate the hole with the drinking straw which accompanies the packaging container, and hereby consume the drink enclosed in the package.
There have long been machines which apply drinking straws in their protective envelopes to packaging containers which are conveyed through the machine. Such a machine is, for example, described in Swedish Patent Specification SE-424 847. These machines function in that a belt of continuous drinking straw envelopes with drinking straws is guided in towards and surrounds a drive means. Adjacent the drive means, there are devices for severing the drinking straw belt into individual drinking straws enclosed in a protective envelope, as well as devices for applying the drinking straw to one side wall of the packaging container, the packaging container being advanced on a conveyor through the machine. Prior to the moment of application, the packaging container is provided with securement points. The securement points may, for example, consist of hot melt, which is molten glue which glues the drinking straw envelope in place and retains it when the glue has hardened. In order to be able to separate each drinking straw and apply the drinking straw on the package, the drive means must operate intermittently and the conveyor must advance the packages intermittently each time application is put into effect.
With new, more rapid filling machines in which the parallelepipedic packaging containers are manufactured, demands have also been raised for the development of more rapid machines for applying the drinking straws. The new machines must be able to operate at at least the same speed as the filling machines in order to avoid bulky and costly accumulation equipment which would otherwise be necessary.
SUMMARY OF THE INVENTION
One object of the present invention is to realise a machine for applying drinking straws to packaging containers which operates more rapidly in that the drive means and the conveyor can operate continuously.
SOLUTION
The above mentioned objective and other objectives are achieved by providing an apparatus for applying drinking straws to prefabricated packaging containers including a rotary drive means for continuous belts of drinking straws wrapped in protective envelopers, guides for drinking straw belts and drinking straws, a conveyor for the packaging containers, a device for applying the drinking straw to the side wall of the packaging container. The device for separating the drinking straws is disposed to accompany a first portional distance of the rotation of the drive means during which the conveyor is driven continuously; and that the device for applying drinking straws is disposed to accompany a second portional distance of the movement of the conveyor belt.
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Bergstrom Jan-Ake
Ohlund Johan
Quist Jens
Strandberg Jan
Burns Doane Swecker & Mathis L.L.P.
Tawfik Sam
Tetra Laval Holdings & Finance S.A.
Vo Peter
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