Device and method for weighing individual containers, and a set comprising such a device
A device ( 10 ) for weighing individual containers ( 14 ) arranged in a nest ( 12 ), wherein the containers ( 14 ) are formed with a bottom region ( 16 ) and a lid region ( 18 ) and the device ( 10 ) includes at least one weighing device ( 20 ) with at least one load cell ( 19 ) and with at least one weighing receptacle ( 22 ), and an arrangement unit ( 28 ). The weighing receptacle ( 22 ) and the arrangement unit ( 28 ) are arranged movable relative to each other in order to be able to move a container ( 14 ) arranged in the nest ( 12 ), which is arranged in the arrangement unit ( 28 ), completely out of the nest ( 12 ). The disclosure also relates to a set comprising such a device ( 10 ) and to a method for weighing individual containers ( 14 ) arranged in a nest ( 12 ).
1. A device ( 10 ) for weighing individual containers ( 14 ) arranged in a nest ( 12 ), the containers ( 14 ) being formed with a bottom region ( 16 ) and a lid region ( 18 ), and the device ( 10 ) comprising:
at least one weighing device ( 20 ), the weighing device ( 20 ) having at least one load cell ( 19 ) for weighing the containers ( 14 ) and at least one weighing receptacle ( 22 ) for receiving the bottom region ( 16 ) of one of the containers ( 14 ),
an arrangement unit ( 28 ) which is configured to arrange the nest ( 12 ) in the device ( 10 ) for the weighing operation,
wherein the device ( 10 ) is configured such that the weighing receptacle ( 22 ) and the arrangement unit ( 28 ) are arranged movable relative to each other in order to be able to move a container ( 14 ) arranged in the nest ( 12 ), which is arranged in the arrangement unit ( 28 ), completely out of the nest ( 12 ), wherein the device ( 10 ) comprises at least one centering device ( 24 ) for centering the container ( 14 ) to be weighed by means of the weighing device ( 20 ), the centering device ( 24 ) comprising a centering receptacle ( 26 ) for receiving the lid region ( 18 ) of the container ( 14 ) to be weighed by means of the weighing device ( 20 ),
wherein the arrangement unit ( 28 ) is arranged to place the nest ( 12 ) for the weighing operation between the weighing device ( 20 ) and the centering device ( 24 ), wherein the arrangement unit ( 28 ), the weighing receptacle ( 22 ) and/or the centering receptacle ( 26 ) are designed to be movable along the direction of gravity ( 30 ).
2. The device ( 10 ) according to claim 1 , characterized in that the weighing receptacle ( 22 ) and/or the centering receptacle ( 26 ) are designed to be exchangeable.
3. The device ( 10 ) according to claim 2 , characterized in that the device ( 10 ) comprises a handling device ( 32 ) for changing the weighing receptacle ( 22 ) and/or the centering receptacle ( 26 ).
4. The device ( 10 ) according to claim 1 , characterized in that the centering receptacle ( 26 ) has at least one pier ( 34 ) for applying a force to the container ( 14 ) to be weighed, in order to return the container ( 14 ) into the nest ( 12 ).
5. The device ( 10 ) according to claim 1 , characterized in that the centering receptacle ( 26 ) is designed as a centering ring.
6. The device ( 10 ) according to claim 1 , characterized in that the device ( 10 ) comprises a gripping device, the gripping device being designed to remove a container ( 14 ) from the weighing device ( 20 ) after weighing.
7. The device ( 10 ) according to claim 1 , characterized in that the device ( 10 ) comprises a filling and/or closing device ( 36 ) arranged to fill and/or close a container ( 14 ) whose bottom region ( 16 ) is received in the weighing receptacle ( 22 ).
8. A set comprising a device ( 10 ) according to claim 1 , at least one nest ( 12 ) and at least one container ( 14 ) arranged in the nest ( 12 ).
9. A method for weighing individual containers ( 14 ) arranged in a nest ( 12 ) and having a bottom region ( 16 ) and a lid region ( 18 ), comprising the steps of:
Providing a nest ( 12 ) with at least one container ( 14 ) arranged therein;
Receiving the bottom region ( 16 ) of a container ( 14 ) to be weighed in a weighing receptacle ( 22 ) of a weighing device ( 20 ) in order to weigh the latter by means of the weighing device ( 20 );
Completely lifting the container ( 14 ) to be weighed out of the nest ( 12 ) by moving the weighing receptacle ( 22 ) and/or the nest ( 12 ) relative to each other along the direction of gravity ( 30 );
Weighing the container ( 14 ) completely lifted out of the nest ( 12 ) by means of the weighing device ( 20 );
Receiving the lid region ( 18 ) of the container ( 14 ) to be weighed in a centering receptacle ( 26 ) in order to center it, wherein the centering receptacle ( 26 ) is arranged above the weighing receptacle ( 22 ) and above the nest ( 12 ) with respect to the direction of gravity.
10. The method according to claim 9 , characterized in that the method comprises the step of:
Applying a force to the weighed container ( 14 ) to return it to the nest ( 12 ).
11. The method according to claim 9 , characterized in that the method comprises the steps of:
After weighing a container ( 14 ), determining whether the weighed container ( 14 ) is a reject container ( 14 );
Removing the container ( 14 ) identified as a reject container ( 14 ) from the weighing receptacle ( 22 ) so that a container ( 14 ) identified as a reject container ( 14 ) is not returned to the nest ( 12 ).
12. The method according to claim 9 , characterized in that the method comprises the step of:
Filling and/or closing a container ( 14 ) whose bottom region ( 16 ) is received in the weighing receptacle ( 22 ).