Fluent material handling – with receiver or receiver coacting mea – Filling means with receiver or receiver coacting means – With receiver support – guide means – or shield
Patent
1992-09-16
1994-04-12
Recla, Henry J.
Fluent material handling, with receiver or receiver coacting mea
Filling means with receiver or receiver coacting means
With receiver support, guide means, or shield
141378, 141312, B67C 300, B65B 104, B65B 300
Patent
active
053017250
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a vessel treating machine of the revolving type.
Thin walled and unstable vessels, in particular plastic bottles, have been provided for quite some time with a stable collar in the area below the opening for reliable handling. Due to this, an especially designed carrying element can engage the vessels at the collar and lift them to the treatment element or station of a vessel treating machine. Due to this handling ability, the formerly customary lifting cylinder acting on the bottoms of the vessels can be eliminated.
So far, a plate with a U-shaped recess for the introduction and removal of the vessels from the treatment stations has been used as the carrying or supporting element in the most simple case. An exact centering of the vessel's opening with respect to a treatment element is not ensured, however, with such supporting elements, since, during the period of time from the pushing in of the vessel into the laterally open recess of the supporting element until the lifting and pressing of the vessel's opening against a seal at the filling element, the vessel does not exactly maintain its original position due to centrifugal forces occurring in rotary machines and also due to machine vibrations.
However, it is important that there be an exact centering of the vessel's opening, not only in the case of vessel inspection machines, but also filling valves with sensitive sensors. Especially in the case of inspection machines it is often required that the vessel not be pressed against a sealing surface attached to the treatment element, like e.g. in filling valves, but the vessel must be positioned in an open condition, i.e. not closed air-tightly, at an inspection probe. In special cases, an exact vertical positioning of the vessel opening is of importance during the inspection process. All these requirements cannot be satisfactorily fulfilled by the known devices.
As opposed to this, the invention is based on the object of bringing about an improvement as regards a safe and fast handling with a simultaneously high centering accuracy.
SUMMARY OF THE INVENTION
This object is attained in accordance with the present invention by providing in a vessel treating machine of the revolving type having at least one treatment element for treating a vessel on a revolving portion of the machine, the vessel having an upwardly directed opening with a collar below the opening, the improvement comprising a device for holding the vessel for treatment by the treatment element independently of said treatment element, said holding device comprising a supporting element for supporting the vessel from its collar, means for moving the supporting element and the treatment element relative to each other in the axial direction of the vessel for treatment of the vessel by the treatment element, a centering element located between the treatment element and supporting element, and means for moving the centering element and the supporting element relative to each other in the axial direction of the vessel and independently of the treatment element to engage the opening of the vessel with the centering element to center the vessel axially relative to the axis of the treatment element and to clamp the vessel between said centering element and supporting element by its opening and collar, respectively, for treatment of the vessel by the treatment element.
A vessel fed to the supporting element of the machine can be clamped by a relative movement in axial direction between the provided centering element and the supporting element supporting the collar by the indicated device. During this clamping process an exact centering of the vessel opening with respect to the treatment element is effected at the same time. For this purpose, the centering element is provided with a correspondingly formed centering surface on its side facing the vessel opening. The clamping and centering process can either take place by lowering the centering element to the vessel opening or by lifting the supportin
REFERENCES:
patent: 1730381 (1929-10-01), Pennock
patent: 4126163 (1978-11-01), Hartness et al.
patent: 4616684 (1986-10-01), Tincati
patent: 4721138 (1988-01-01), Simonazzi
Douglas Steven O.
Krones AG Hermann Kronseder Maschinenfabrik
Recla Henry J.
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