Nozzle and method for dispensing random pattern of adhesive filaments
AssigneeNordson Corporation
InventorsThomas Burmester, Hubert Kufner
Life of this patent
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Abstract
A nozzle for dispensing a random pattern of liquid adhesive filaments generally comprises an adhesive shim plate positioned between first and second air shim plates. The first air shim plate includes air slots configured to direct pressurized process air along a first angle relative to the adhesive shim plate, and the second air shim plate includes air slots configured to direct pressurized process air along a second angle relative to the adhesive shim plate. The first angle is different than the second angle so that the first and second air shim plates direct the pressurized process air asymmetrically toward adhesive filaments discharging from liquid slots in the adhesive shim plate.
Claims35
A nozzle for dispensing a random pattern of liquid adhesive filaments, comprising:
- first and second air shim plates, said first and second air shim plates each having a plurality of air slots adapted to receive and direct pressurized process air;
- and
- an adhesive shim plate positioned between said first and second air shim plates, said adhesive shim plate having a plurality of liquid slots adapted to receive pressurized liquid adhesive and discharge liquid adhesive filaments, the pressurized process air directed by said air slots moves said filaments of the pressurized liquid adhesive discharging from said liquid slots in a random pattern;
- said air slots in said first air shim plate are configured to direct the pressurized process air along a first angle relative to said adhesive shim plate and said air slots in said second air shim plate are configured to direct the pressurized process air along a second angle relative to said adhesive shim plate, said first angle being different than said second angle so that said first and second air shim plates direct the pressurized process air asymmetrically toward the adhesive filaments.
A nozzle for dispensing a random pattern of liquid adhesive filaments, comprising:
- first and second air shim plates, said first and second air shim plates having respective pairs of air slots, each of said air slots adapted to receive and direct pressurized process air;
- and
- an adhesive shim plate positioned between said first and second air shim plates, said adhesive shim plate having a plurality of liquid slots each arranged generally between a pair of said air slots in said first air shim plate and a pair of said air slots in said second air shim plate thereby associating four of said air slots with each liquid slot, said liquid slots adapted to receive pressurized liquid adhesive and discharge liquid adhesive filaments, the pressurized process air directed by each group of said four air slots moves said filaments of the pressurized liquid adhesive discharging from the associated liquid slot in a random pattern;
- said air slots in said first air shim plate are configured to direct the pressurized process air along a first angle relative to said adhesive shim plate and said air slots in said second air shim plate are configured to direct the pressurized process air along a second angle relative to said adhesive shim plate, said first angle being different than said second angle so that said first and second air shim plates direct the pressurized process air asymmetrically toward the adhesive filaments.
A nozzle for dispensing a plurality of liquid adhesive filaments in a random pattern, comprising:
- a plurality of liquid outlets configured to respectively discharge the plurality of liquid adhesive filaments;
- a first plurality of air passages, each air passage of said first plurality of air passages associated with one of said liquid outlets and configured to direct pressurized process air along a first angle relative to a plane including said associated liquid outlet;
- and
- a second plurality of air passages, each air passage of said second plurality of air passages associated with one of said liquid outlets and configured to direct pressurized process air along a second angle relative to the plane including said associated liquid outlet;
- at least one of said first plurality of air passages and at least one of said second plurality of air passages being on opposite sides of one of said liquid outlets;
- said first angle being different than said second angle so that the pressurized process air is asymmetrically directed from said first and second pluralities of air passages toward the respective liquid adhesive filaments to produce the random pattern.
Dependencies are inferred from the claim text.