Plant and method for labeling reels of web material
The plant includes at least one support ( 3 ) for the reels (B 1 , B 2 . . . . Bn) to be labeled, a label dispenser, a first labeling robot ( 11 ) adapted to take labels from the label dispenser and to insert them into the central openings of the reels arranged on the support, and a second handling robot ( 31 ) adapted to take the reels and to move them away from the support ( 3 ).
1 . A plant for labeling and handling reels of web material, the reels having a central opening, around which the web material is wound, the plant comprising:
at least a support for the reels to be labeled;
a label dispenser;
a first labeling robot adapted to take labels from the label dispenser and to insert the labels into the central openings of the reels arranged on the support; and
a second handling robot adapted to take the reels and to move the reels away from the support.
2 . The plant of claim 1 , wherein the first robot includes a label pickup device comprising at least one rod element provided with a plurality of label pickup members configured to engage the labels and to release the labels on an inner surface of the central opening of the reels.
3 . The plant of claim 2 , wherein the rod element is connected to the robot at an intermediate point and comprises two linear portions extending from the intermediate point, each linear portion having at least one label pickup member.
4 . The plant of claim 1 , wherein the second robot comprises a first reel gripping and handling member, configured to engage the reels from the inside of the central opening.
5 . The plant of claim 4 , wherein the first gripping and handling member is an expandable member.
6 . The plant of claim 1 , wherein the second robot comprises a second reel gripping and handling member for gripping and handling the reels, configured to engage the reels on an outer surface of the reels.
7 . The plant of claim 6 , wherein the second gripping and handling member comprises a pair of jaws provided with a reciprocal movement towards, and away, from each other to radially grip the reels from the outside.
8 . The plant of claim 1 , wherein the support for the reels to be labeled is configured to support the reels resting with respective side surfaces of the reels on the support.
9 . The plant of claim 1 , wherein the label dispenser comprises a label printing device.
10 . The plant of claim 1 , wherein the first robot comprises a first anthropomorphic arm.
11 . The plant of claim 1 , wherein the second robot is configured to modify the orientation of the reels and to arrange the reels with a respective axis of the reels in an approximately vertical position.
12 . The plant of claim 1 , wherein the second robot comprises a second anthropomorphic arm.
13 . The plant of claim 1 , wherein at least one system for searching the reel center is associated with the first robot and the second robot.
14 . The plant of claim 1 , wherein the second robot comprises a handler for gripping and handling separating sheets intended to be interposed between stacked reels and/or to cover end faces of a stack of reels.
15 . The plant of claim 1 , comprising an outer labeler adapted to label the reels on an outer surface of the reels.
16 . The plant of claim 1 , wherein the support comprises a V-shaped rest surface for a series of aligned reels.
17 . The plant of claim 1 , wherein the support comprises a conveyor to move the reels towards the first robot and the second robot.
18 . The plant of claim 1 , wherein the support is configured to arrange the reels with a reel axis inclined with respect to the horizontal, so that the reel closest to the first robot and to the second robot is arranged at greater height than the reel farthest from the first robot and the second robot.
19 . The plant of claim 1 , comprising a further support for the reels, the first robot and the second robot being configured to act on reels resting on both supports.
20 . A method for labeling and handling reels of wound web material having a central opening and a side outer surface, the method comprising the following steps:
arranging a plurality of reels on a reel support;
through a first robot, applying a label inside each reel in the reel central opening; and
through a second robot, taking each labeled reel from the support and moving the labeled reel therefrom.
21 . The method of claim 20 , wherein the step of taking and moving each reel comprises the step of overturning the reel and arranging the reel with the respective axis in a vertical position, and the step of stacking a plurality of reels coaxially with one another.
22 . The method of claim 20 , wherein during the step of taking and moving the reel, the first robot carries out a step of picking up one or more labels to be applied to subsequent reels arranged on the support.
23 . The method of claim 20 , further comprising the step of applying a label to the outer surfaces of the reels, while the reels are arranged on the support.