Cut-web tail edge holding means for web winding apparatus
AssigneeKawanoe Zoki Kabushiki Kaisha
InventorsChotaro Yamaguchi, Katsuaki Shirakawa
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AssigneeKawanoe Zoki Kabushiki Kaisha
InventorsChotaro Yamaguchi, Katsuaki Shirakawa
Estimating the term…
A web winding apparatus including a main winding drum and a web separator roll which are operatively interconnected to rotate in synchronism. The drum has a channel in the surface thereof. The roll has a cutter blade projecting from the surface thereof. At selected times during synchronous rotation of the drum and the roll the cutter blade is forced into the channel to move the web into the channel and tear the web in the channel. A hook blade having a large number of hooks is mounted at the fore side of the channel. Edges of the hooks are arranged side by side in a rearward looking pattern in the direction of rotation of the drum. Therefore, when the cutter blade plunges into the channel and the web is torn in the channel, the tail edge of the separated web is caught by the hook and held against the surface of the drum.
In a web winding apparatus including a main winding drum and a web separator roll which are operatively interconnected to rotate in synchronism, the main winding drum having a channel in the surface thereof, the web separator roll having web separator means projecting from the surface thereof for separating a web held against the surface of the main winding drum in the channel, the channel and the web separator means being so formed in the main winding drum and the web separator roll respectively that at selected times during synchronous rotation of the main winding drum and the separator roll the web separator means is forced into the channel, the web separator means having a rigid member which forces the web into the channel such that when the rigid member is forced into the channel, the web separator means will move the web into the channel so as to tear the web in the channel, a subsidiary winding drum and a nip roll disposed near said main winding drum, said main winding drum, said subsidiary winding drum and said nip roll being constructed and arranged so as to define a winding space for winding a web upon a core which has been fed into the winding space through a gap between said main winding drum and said subsidiary winding drum until a log of a desired diameter is obtained, said main winding drum having a separated-web tail edge holding device for holding the tail edge of the separated-web adjacent the channel and in contact with the surface of the main winding drum after the web separation takes place, said separated-web tail edge holding device comprising:
Dependencies are inferred from the claim text.