Device for Wrapping Products

Abstract

A system for wrapping sets of products with a stretch film has a first conveyor belt with the incoming products, a second outgoing conveyor belt with the products wrapped in the stretch film, and one or more devices for wrapping the products with a stretch film, each device being provided with a handling robot with a handling end, to which a wrapping and gripping assembly is fixed that includes a wrapping head for wrapping the stretch film and gripping elements for gripping and rotating the products while the stretch film is wrapped.

1 . A device for wrapping sets of products through a stretch film, comprising a wrapping and gripping assembly which includes a wrapping head for wrapping said stretch film and gripping means for gripping and rotation of said sets of products according to a substantially horizontal direction (X), further comprising a handling robot, provided with a handling end, to which said wrapping and gripping assembly is fixed. 
     
     
         2 . The device according to  claim 1 , wherein said handling robot comprises attachment means placed on said handling end and said wrapping and gripping assembly comprises fixing means, said attachment means being provided for hooking or unhooking on command to said fixing means. 
     
     
         3 . The device according to  claim 1 , wherein said wrapping head is provided with a coil of stretch film for wrapping the products and comprises a box-shaped body which contains means for actuating in rotation the coil, means for pre-stretching the wrapping film, means for applying the same film on the sets of products and means for cutting the film to complete the application of the film on the sets of products. 
     
     
         4 . The device according to  claim 1 , wherein said gripping means comprise drive means to open or close said gripping means according to said substantially horizontal direction (X) and to compact the sets of products. 
     
     
         5 . The device according to  claim 1 , wherein said gripping means comprise two jaws able to take the set of products. 
     
     
         6 . The device according to  claim 5 , wherein said jaws comprise rodlike elements having a shape and a structure that allows them to be extract from the inside of the wrapping made from the film on the set of products. 
     
     
         7 . The device according to  claim 6 , wherein said rod-like elements are suitably shaped based on the particular shape of the products to be grasped, and are adapted to discharge the tension due to the wrapping of said film around the products, so as to preserve the products from any squashing, deformation or other damage during the wrapping step. 
     
     
         8 . The device according to  claim 1 , wherein said gripping means comprise rotation means for the rotation of the products when they have been gripped by said gripping means. 
     
     
         9 . The device according to  claim 8 , wherein said rotation means comprise two gearmotors in rotation around said axis (X) in a concurrent and synchronized way in speed and phase, thanks to an electric axis between the two motors, namely through appropriate sensors and electric adjustment means of the motors. 
     
     
         10 . The device according to  claim 5 , comprising
 hooking or unhooking means, optionally quick, of rod-like elements from said jaws and/or   a control unit having means for connecting each product to a respective scheme or treatment sequence, said control unit being in charge of steering said jaws so as to compact each product according to its respective scheme or treatment sequence.   
     
     
         11 . A system for wrapping sets of products with a stretch film comprising one or more devices  04  according to  claim 1 . 
     
     
         12 . The system according to  claim 11 , comprising at least a first conveyor belt with the incoming products and at least a second conveyor belt with the outgoing products wrapped in the stretch film.