Method and device for winding webs of material especially webs o

Details Method and device for winding webs of material especially webs o Method and device for winding webs of material especially webs o

Filed on

1989-04-06

Date issued

1990-12-04

Examiner

Levy, Stuart S.

Patent Class

Winding, tensioning, or guiding

SubClass

Coil holder or support

SubSubClass

Spool or core

Other Related Categories

242 65, B65H 1930

Type

Patent

Status

active

Patent number

049747860

Description

ABSTRACT:
A method of and device for winding webs of material, especially webs of paper or cardboard, on cores. In the method, the web is wound on cores in a bed created by two drums and the full reels are ejected from the bed above one drum by an arm that swings around the other. Wound reels with a short diameter are compressed between the ejection surface on the ejection arm and the drum that the reel is being ejected over and are lifted out of the bed by a rotation of the drum. The device has a mechanism for ejecting full reels that swings forward toward the bed created by two drums and has an ejection arm with an ejection surface that extends more or less radially toward the drum that the reel swings around. The ejection surface in one embodiment extends as far as the drum that the reel swings around and, once is has swung forward, its upper demarcation will extend into the vicinity of the adjacent drum. Another embodiment of the device also has a combination reel-ejection and core-insertion mechanism that has an ejection arm and a core-insertion structure, whereby the ejection surface on the arm terminates at a distance from the drum and the core-insertion structure releases the cores through the space between the ejection surface and the drum. The ejection surface can, when the ejection-and-insertion mechanism is at rest, be moved or extended toward the drum that the reel swings around.

REFERENCES:
patent: 4345722 (1982-08-01), Kuhn
patent: 4370193 (1983-01-01), Knauthe
patent: 4456190 (1984-06-01), Karttunen et al.
patent: 4485979 (1984-12-01), Dropczynski
patent: 4516735 (1985-05-01), Snygg
patent: 4601441 (1986-07-01), Oinonen et al.
patent: 4726533 (1988-02-01), Dropczynski
patent: 4789109 (1988-12-01), Kyttsonen et al.

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