| 摘要 |
The vertical and horizontal axis ring machine, for wrapping with stretch film usually palletized loads which are surrounded by the said ring and in which a suitable displacement between ring and load is envisaged so as to ensure that the latter is wrapped with film over the desired extension, comprises: a ring ( 5 ) with a diameter suitably greater than that of the maximum-size load (C) to be wrapped, which is made to rotate by drive means ( 9 ) mounted on a frame ( 2 ) which rotatably supports the said ring by means of support rollers ( 3 ) and containing rollers ( 4 ); there being mounted on the said frame ( 2 ) supporting the ring ( 5 ) means for supporting the reel ( 24 ) of stretch film and means for unwinding from it the film and for statically supplying it to: conveying means situated on the said rotating ring ( 5 ) and controlled by drive means situated on the said support frame ( 2 ), for collecting the film supplied from the said static supplying means, so as to keep it in the condition in which it is supplied by these means, so as to accumulate it in the form of annular turns superimposed on each other in an amount greater than that with which the innermost turn of this winding is supplied to the load to be wrapped (C), by supplying means situated on the said rotating ring ( 5 ); means ( 27 ) for temporarily retaining on the load to be wrapped the front end of the film unwound from the said last supplying means, abandoning the film when the wound turn is suitably fastened thereon, and which at the end of the load wrapping cycle intervene again in order to retain the new front end of the film, separating it from the tail end of the wound turn and fixing the latter onto the said wound turn performed.
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