Tab applicator for log roll winders
AssigneeMinnesota Mining and Manufacturing Company
InventorsHarvey D. Ogren, James L. Albrecht, Leonard M. Volin
Life of this patent
Estimating the term…
Abstract
The winding system includes several rollers and a rotating drum, around which the web winds before being wound on a core. A cutting and tabbing assembly cuts the web against the rotating drum and cuts and applies the tab on the web in registration with the cut end of the web. The cutting and tabbing assembly includes a wheel, a knife mounted on the wheel, and a tab bar mounted on the wheel adjacent the knife. During the winding of the web on the core the proper amount of tab paper is unwound and moved toward the knife to cut and grab the tab. Then, the knife and tab bar rotate to cut the web while the tab bar applies the tab onto the cut end of the web.
Claims29
A cutting and tabbing assembly for use with a winding system for a web, comprising:
- a) a wheel that rotates between a tab-receiving position and a web-cutting position;
- b) a knife mounted on the wheel;
- c) a tab bar mounted on the wheel adjacent the knife, wherein the tab bar comprises means for holding a tab;
- d) a tab unwinder on which a supply of tab material is mounted, wherein the unwinder translates between a first position spaced from the wheel and a second position adjacent the wheel;
- e) means for moving the unwinder from the first position to the second position to enable the knife to cut a tab from the tab material supply and the tab bar to receive the tab while the knife and tab bar are in the tab-receiving position;
- and
- f) means for rotating the knife and tab bar from the tab-receiving position to the web-cutting position to enable the knife to cut the web, and the tab bar to apply the tab onto the web in registration with a cut end of the web.
A cutting and tabbing assembly for use with a winding system for a web, the assembly comprising:
- (a) means for cutting the web;
- (b) a tab source;
- (c) a tab bar mounted adjacent the cutting means for receiving a tab from the tab source;
- (d) means for moving the tab source from a first position spaced from the cutting means and tab bar to a second position adjacent the cutting means and tab bar to enable the tab bar to receive a tab while the cutting means and tab bar are in a tab-receiving position;
- and
- (e) means for rotating the cutting means and tab bar from the tab-receiving position to a web-cutting position to enable the cutting means to cut the web, and the tab bar to apply the tab onto the web in registration with a cut end of the web.
A cutting and tabbing assembly for use with a winding system for a web, the assembly comprising:
- (a) means for cutting the web;
- (b) a tab source;
- (c) a tab bar mounted adjacent the cutting means for receiving a tab from the tab source;
- (d) means for moving the tab source between a first position spaced from cutting means and tab bar and a second position adjacent the cutting means and tab bar to enable the tab bar to receive a tab;
- and
- (e) means for moving the cutting means and tab bar to a web-cutting position to enable the cutting means to cut the web, and the tab bar to apply the tab onto the web in registration with a cut end of the web.
A cutting and tabbing assembly for use with a winding system for a web, the assembly comprising:
- (a) means for cutting the web;
- (b) a tab source;
- (c) a tab bar mounted adjacent the cutting means for receiving a tab from the tab source;
- (d) means for moving the cutting means and tab bar between a first position spaced from the tab source and a second position adjacent the tab source to enable the tab bar to receive a tab;
- and
- (e) means for moving the cutting means and tab bar to a web-cutting position to enable the cutting means to cut the web, and the tab bar to apply the tab onto the web in registration with a cut end of the web.
A method of cutting a web that is moving in a direction and applying a tab on the web without stopping the movement of the web, comprising the steps of:
- a) providing a tab material;
- b) receiving a tab from the tab material;
- c) transporting the tab to a location adjacent the web;
- d) cutting the web against a cutting surface without stopping the movement of the web;
- and
- e) applying the tab to the web in registration with a cut end of the web.
Dependencies are inferred from the claim text.