Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
  • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
  • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
  • B05C1/10—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the liquid or other fluent material being supplied from inside the roller
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
  • B31B50/60—Uniting opposed surfaces or edges; Taping
  • B31B50/62—Uniting opposed surfaces or edges; Taping by adhesives
  • B31B50/622—Applying glue on already formed boxes

Definitions

• the present invention relates to a wheel applicator for glue, preferably for gluing carton blanks and includes a glue container, a gluing wheel with a liquid-penetrable circumferential surface, means for conveying the glue from the container to the wheel and means in the wheel for conveying the glue to the circumference of the wheel.
• the means in the gluing wheel for conveying the glue to its circumferential surface comprises a wedge situated inside the wheel, having its apex touching the inner circumference of the wheel, this wedge being arranged, on rotation of the wheel, to urge the glue to the outer circumference of the wheel, partly by rotation per se and partly by the pressure occurring when the glue is urged between the inner circumferential surface of the wheel and the apex of the wedge.
• Fig. 1 is a schematic side view, partially in section, of the applicator in accordance with the present invention.
• Fig. 2 depicts the applicator of Fig. 1 from above and Fig. 3 is another side view of the applicator depicted in Fig. 1.
• the inventive embodiment of the applicator depicted on the drawings comprises three main parts.
• the first part is a glue container A, which is kept warm by a heating element in the case of melted glue.
• the container can contain cold glue.
• the second part is a means for conveying the glue from the container A to a gluing wheel D
• this comprises a stub B situated under the wheel D and fixed to the container A, the stub being formed with a helical groove in its circum ⁇ ferential surface and being surrounded by a rotatable sleeve C, which is adapted to convey glue from the container A to the upwardly situated gluing wheel D when the sleeve C is rotated.
• This is achieved by the sleeve C, which surrounds the fixed stub B, entraining the liquid glue as the sleeve rotates so that the glue is conveyed up to the gluing wheel D.
• the third part is a gluing wheel D, which has a liquid- penetrable circumferential surface, which may comprise a rotatable ring with one or more rows of holes in its circumferential surface, or a porous ring, where the glue is urged out to the outer circumferential surface of the ring partly by rotation and partly by the pressure occurring when the glue is urged between the ring and a wedge E situated inside the wheel D, where the apex of the wedge has its bisector at approximately 90° to the tangent to the place where the apex of the wedge meets the interior circumferential surface of the wheel D.
• the wedge E has substantially the same height as the inner circumferential surface of the wheel D, and is pivotable about its apex such as to increase or decrease the angle between the above-mentioned tangent and one of the faces of the wedge E.
• the amount of glue urged out through the holes in the gluing wheel D can thus be regulated.
• the wedge E may be sector-shaped, or it may have any other suitable configuration.
• the glue is applied to a body, e.g. in the form of a carton G, by the face of the carton coming into tangential contact with the glue-coated outer circumferential surface of the wheel D.
• the wheel D is also equipped on its outside with a scraper H for removing superfluous glue.
• Driving the gluing wheel D and sleeve C can take place with the aid of such as a drive motor F.
• the glue can be conveyed up to the gluing wheel D by having the sleeve C stationary and causing the stub B to rotate.

Landscapes

• Coating Apparatus (AREA)
• Making Paper Articles (AREA)
• Closures For Containers (AREA)

Priority Applications (2)

Applications Claiming Priority (1)

Publications (1)

Family

ID=20363393

Family Applications (1)

Country Status (2)

Cited By (1)

Families Citing this family (1)

Citations (6)

• 1985
  • 1985-05-30 SE SE8502676A patent/SE448066B/sv not_active IP Right Cessation
• 1986
  • 1986-11-28 WO PCT/SE1986/000544 patent/WO1988003844A1/en unknown

Patent Citations (6)

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