Device for gluing the tail end of a reel of web material

• US 5,716,489 A
• Filed: 05/24/1996
• Issued: 02/10/1998
• Est. Priority Date: 12/10/1993
• Status: Expired due to Term

• Current Assignee: Fabio Perini S.P.A. (Korber AG)
• Original Assignee: Fabio Perini S.P.A. (Korber AG)
• Inventors: Biagiotti, Guglielmo
• Primary Examiner(s): ENGEL, JAMES J
• Application Number:
  US08/652,431
• Time in Patent Office: 627 Days
• Field of Search: 156/187, 156/443, 156/446, 156/448, 156/449, 156/456, 156/578, 118/243
• US Class Current: 156/443
• CPC Class Codes: B05C 1/027 only at particular parts of the articles at particular parts of work of indefinite length B05C1/16
• CPC Class Codes: B65H 19/29 Securing the trailing end of the wound web to the web roll cores, formers, supports or holders, e.g. reels, with arrangements for securing ends of material B65H75/28
• CPC Class Codes: B65H 2301/414421 Glue or hot-melt
• CPC Class Codes: B65H 2301/414433 onto the roll
• CPC Class Codes: B65H 2301/414446 Sealing or securing in a separate following station
• CPC Class Codes: B65H 2301/41445 after winding process
• CPC Class Codes: B65H 2301/41816 by core magazine within winding machine, i.e. horizontal or inclined ramp holding cores
• CPC Class Codes: Y10T 156/1798 with liquid adhesive or adhesive activator applying means

Abstract

A device for gluing the tail end of a reel of wound web material, comprises: conveying means for moving the reel, unwinding means for unwinding the tail end of the web material, a dispenser of glue for applying the glue to the reel, and means for rewinding the tail end after the glue has been applied. Said dispenser includes an upwardly oriented aperture from which the glue is dispensed and includes a container for the glue with said upwardly oriented aperture and a moving member positioned inside said container which is immersed in the glue contained in the container and moved towards said upwardly oriented aperture in order to dispense the glue to the reel as it rolls over said aperture.

Claims

1. Device for gluing a tail end of a reel of wound web material comprising conveying means for rolling the reel;

unwinding means for unwinding the tail end of the web material;

a dispenser of glue for applying glue to the reel; and

means for rewinding the tail end after the glue has been applied;

wherein said dispenser includes a container for the glue which has an upwardly oriented aperture from which the glue is dispensed and a moving member positioned inside said container, said moving member being constructed and arranged to be alternately immersed in the glue contained in the container and movable towards and in relation to said upwardly oriented aperture such that when the reel rolls over the aperture, glue present on said moving member transfers to a portion of an outer surface of the reel.

2. Device according to claim 1 wherein said container is upwardly closed by a wall forming a rolling surface for said reel, said wall being provided with said upwardly oriented aperture.

3. Device according to claim 1 or 2 wherein said moving member is provided with an upper concave surface on which the glue to be dispensed is collected.

4. Device according to claim 1 or 2 wherein said moving member is formed by a transversal and substantially rectilinear bar.

5. Device according to claim 3 wherein said moving member is formed by a transversal and substantially rectilinear bar.

6. Device according to claim 1 or 2 wherein said moving member is supported by a set of rockers which are linked to a fixed structure and controlled with an oscillating motion.

7. Device according to claim 3 wherein said moving member is supported by a set of rockers which are linked to a fixed structure and controlled with an oscillating motion.

8. Device according to claim 4 wherein said moving member is supported by a set of rockers which are linked to a fixed structure and controlled with an oscillating motion.

9. Device according to claim 1 or 2 wherein said moving member rotates about a fixed transversal axis.

10. Device according to claim 3 wherein said moving member rotates about a fixed transversal axis.

11. Device according to claim 4 wherein said moving member rotates about a fixed transversal axis.

12. Device according to claim 6 wherein said moving member rotates about a fixed transversal axis.

13. Method for gluing a tail end of a web material wound to form a reel, in which the tail end is detached from the surface of the reel and unwound from the reel to a predetermined length comprising rolling the reel with the tail end unwound therefrom over an aperture from which glue is dispensed to apply said glue to a portion of the web material which is still wound on the reel;

and rewinding the tail end onto the reel;

wherein said glue is contained in a container arranged in relation to said aperture and said glue is picked up by a moving member present in said container, said moving member being cyclically moved toward said aperture to bring said glue into correspondence with said aperture, rolling the reel over said aperture and transferring glue from said moving member to the portion of the web material still wound up on the reel.