Module, nozzle and method for dispensing controlled patterns of liquid material
AssigneeNordson Corporation
InventorsMichael W. Harris, Joel E. Saine
Life of this patent
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Abstract
A liquid dispensing module and nozzle or die tip for dispensing at least one liquid filament from a liquid discharge passage onto at least one moving strand. A strand guide is used for guiding each strand past the nozzle and/or locating each strand relative to the discharged liquid filament. The nozzle includes a process air outlet that supplies a stream of process air impinging each moving strand before the liquid filament is dispensed onto the strand.
Claims21
A nozzle for dispensing a liquid filament onto a strand, comprising:
- a nozzle body having a liquid supply port, a process air supply port, and a liquid discharge passage connected in fluid communication with said liquid supply port;
- a mounting surface configured for mounting said nozzle body to a valve module;
- and
- a process air outlet formed in said nozzle body, said process air outlet coupled in fluid communication with said process air supply port, and said process air outlet oriented to discharge an air stream impinging the strand before the liquid filament is dispensed from said liquid discharge passage onto the strand.
An applicator for dispensing a liquid filament onto a moving substrate, comprising:
- a module body having a liquid supply passage and an air supply passage;
- a nozzle body having a liquid discharge passage connected in fluid communication with said liquid passage;
- and
- a process air outlet formed in said nozzle body, said process air outlet coupled in fluid communication with said process air supply port, said process air outlet oriented to discharge an air stream impinging the strand before the liquid filament is dispensed from said liquid discharge passage onto the strand.
A method of dispensing a liquid filament onto a strand from a nozzle having a liquid discharge passage, the method comprising:
- moving the strand relative to the nozzle;
- impinging the strand with process air upstream of the liquid discharge passage before the liquid filament is dispensed onto the strand;
- and
- dispensing the liquid filament from the liquid discharge passage onto the strand.
Dependencies are inferred from the claim text.