Agitating – By movement of support for removable mixing chamber – Mixing chamber secured to support
Patent
1997-04-02
1998-05-05
Cooley, Charles E.
Agitating
By movement of support for removable mixing chamber
Mixing chamber secured to support
B01F 902
Patent
active
057465100
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a mixing device for mixing free-flowing masses located in a container. The device has a rotating carrier that is provided on a mixing side with a container carrier for the container. The container which rotates counter to the direction of rotation of the carrier. The device is further provided on a balancing side with a housing for an active balancing weight opposite the mixing side, with the moments of the mixing side and the moments of the balancing side being balanced.
BACKGROUND OF THE INVENTION
DE-OS 42 39 284 discloses a mixing device for free-flowing masses that has a carrier, a rotating container carrier for a container holding a free-flowing mass, and a housing. The container carrier can be driven about its own axis, counter to a direction of rotation of the carrier. The housing serves to receive an active balancing weight in the form of a free-flowing medium that is matched to the weight of the container and the weight of the free-flowing mass located in the container.
To mix free-flowing masses having different specific weights, it is necessary to adapt the active balancing weight. In the process, the volume of the balancing weight is decreased or increased, or the active balancing weight, without being changed in volume, is exchanged for another balancing weight having a different specific weight.
SUMMARY OF THE INVENTION
It is the object of the invention to provide a mixing device with which free-flowing masses having different specific weights can be mixed without necessitating a change in volume or an exchange of the active balancing weight.
In accordance with the invention, the object is accomplished with a mixing device in which the housing and a counterweight disposed on the carrier and coinciding in weight with the tare weight of the housing are disposed to be radially displaceable on the balancing side; the center of gravity of the housing and the center of gravity of the counterweight are disposed on a common beam extending perpendicular to the axis of rotation of the carrier, and the counterweight can be displaced, corresponding to the magnitude of displacement of the housing, counter to the direction of displacement of the housing.
To match the active balancing weight disposed in the housing to the weight of the free-flowing mass to be mixed, it is necessary to displace the housing radially with respect to the axis of rotation. Consequently, the position of the center of gravity of the housing changes. At the same time, however, the position of the center of gravity of the counterweight also changes, in the opposite direction, so that the two centers of gravity lie on the same beam. A common center of gravity formed by the housing and the counterweight likewise lies on the beam, specifically between the centers of gravity of the housing and the counterweight, and always maintains its position. This ensures that the masses present on the balancing side and the mixing side are constantly balanced without the weight of the active balancing weight, without the free-flowing mass located in the container and without the container.
Seen strictly in terms of calculation, only the active balancing weight is displaced when the housing is displaced radially.
The housing and the counterweight advisably cooperate with at least one threaded spindle disposed to be fixed both axially and against relative rotation, and to rotate freely, on the carrier, with the threaded region that cooperates with the housing working in the opposite direction with respect to the threaded region that cooperates with the counterweight. With the aid of the threaded spindle disposed on the carrier, the housing and the counterweight can be adjusted simply and quickly. Because of the threaded regions working in opposite directions, the distance of the housing from the axis of rotation of the mixing device and the distance between the housing and the counterweight change when the threaded spindle rotates.
The suspension of the housing and the balancing weight on the car
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patent: 5551779 (1996-09-01), Gantner et al.
Mark Fritz
Noser Martin
Cooley Charles E.
Friedhelm Schneider
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