Method of and apparatus for manipulating bobbins

Bobbins containing convoluted webs of sheet material, particularly wrapping material for smokers' products, are transferred from a stack—wherein the axes of the cores of bobbins are vertical—onto the horizontal stub of a receiver in a web processing machine by an apparatus wherein a first set of jaws serves to engage the core of a fresh bobbin from within preparatory to transfer to the receiver and simultaneous pivoting of the first set of jaws through 90°. When the supply of web on the core borne by the stub of the receiver is exhausted, the external surface of the thus exposed core is engaged by a second set of jaws which transport the core to a collecting station or the like. Sheet-like partitions which are disposed between neighboring layers of fresh bobbins in the stack are removed by suction cups which are mounted on a reciprocable pusher together with the jaws of the second set.

Abstract

Bobbins containing convoluted webs of sheet material, particularly wrapping material for smokers' products, are transferred from a stack—wherein the axes of the cores of bobbins are vertical—onto the horizontal stub of a receiver in a web processing machine by an apparatus wherein a first set of jaws serves to engage the core of a fresh bobbin from within preparatory to transfer to the receiver and simultaneous pivoting of the first set of jaws through 90°. When the supply of web on the core borne by the stub of the receiver is exhausted, the external surface of the thus exposed core is engaged by a second set of jaws which transport the core to a collecting station or the like. Sheet-like partitions which are disposed between neighboring layers of fresh bobbins in the stack are removed by suction cups which are mounted on a reciprocable pusher together with the jaws of the second set.

1. Drawings

[0001]Sheet 1.

[0002]Sheet 2.

[0003]Sheet 3.

[0004]Sheet 4.

[0005]Sheet 5.

[0006]Sheet 6.

[0007]Sheet 7.

[0008]Sheet 8.

[0009]Sheet 9.