Slot nozzle for adhesive applicators

Patent metadata

Field	Value
Publication number	US-12036576-B2
Application number	US-202318164025-A
Country	US
Kind code	B2
Filing date	Feb 3, 2023
Priority date	Apr 30, 2021
Publication date	Jul 16, 2024
Grant date	Jul 16, 2024

Abstract

A nozzle assembly includes a first body having an upper and an inner surface; a first channel in the first body to receive a material; a second body having an upper and an inner surface; a second channel in the second body, in liquid communication with the first channel, and configured to receive the material from the first channel; a material outlet defined by the first and second bodies configured to discharge the material; a material inlet on the upper surface of the first body, in liquid communication with the first channel, and configured to receive the material into the nozzle assembly; and an upper lip extending from the first body toward the second body and partly defined by the upper surface of the first body. The upper lip includes a lip surface opposite the upper surface of the first body. The upper surface of the second body is configured to contact the lip surface of the upper lip.

First claim

What is claimed:

1. An applicator assembly for dispensing a material onto a substrate, the applicator assembly comprising:
a housing;
a dispensing assembly configured to receive the material therein; and
a nozzle assembly configured to receive the material from the dispensing assembly at a material inlet and to discharge the material out of the nozzle assembly through a material outlet, the nozzle assembly comprising:
a first body having an upper surface and an inner surface angularly offset from the upper surface;
a first channel extending through the first body, the first channel configured to receive the material therein;
a second body having an upper surface and an inner surface angularly offset from the upper surface;
a second channel extending through the second body, the second channel being in liquid communication with the first channel and configured to receive the material therein from the first channel; and
an upper lip extending from the first body toward the second body, the upper lip being partly defined by the upper surface of the first body, and the upper lip including a lip surface opposite the upper surface of the first body,

wherein the material outlet is defined by the first body and the second body,
wherein the material inlet is defined on the upper surface of the first body and is in liquid communication with the first channel,
wherein the upper surface of the second body is configured to contact the lip surface of the upper lip of the first body,
wherein the housing includes a first wall extending therefrom and a second wall extending therefrom spaced from the first wall, the housing defining a space between the first and second walls, and
wherein the nozzle assembly is configured to be received in the space defined between the first and second walls.

2. The applicator assembly of claim 1 , further comprising a heater configured to heat the material in the applicator assembly.

3. The applicator assembly of claim 2 , wherein the heater is configured to apply heat to the first body of the nozzle assembly.

4. The applicator assembly of claim 3 , wherein the second body of the nozzle assembly is configured to receive heat through the first body of the nozzle assembly and does not receive heat directly from the heater.

5. The applicator assembly of claim 1 , wherein the material includes a thermoplastic polymer.

6. The applicator assembly of claim 1 , wherein the material includes an adhesive.

7. The applicator assembly of claim 1 , wherein an upper housing of the first body is configured to contact the housing, and the upper surface of the second body is precluded from contacting the housing.

8. The applicator assembly of claim 1 , wherein the applicator assembly has a first configuration and a second configuration, wherein when the applicator assembly is in the first configuration, the nozzle assembly is disposed in the space such that the first body of the nozzle assembly is disposed between the second body and the first wall of the housing, and when the applicator assembly is in the second configuration, the nozzle assembly is disposed in the space such that the first body of the nozzle assembly is disposed between the second body and the second wall of the housing.

9. The applicator assembly of claim 1 , further comprising:
a sealing element on the upper surface of the first body adjacent the material inlet; and
a shim disposed between the first body and the second body, the shim being configured to contact the inner surface of the first body and the inner surface of the second body.

10. The applicator assembly of claim 1 ,
wherein the second body is movable relative to the first body,
wherein the upper surface of the second body is movable relative to the lip surface of the upper lip of the first body,
wherein the first body includes an outer surface spaced from the inner surface of the first body along a lateral direction away from the second body, the second body includes an outer surface spaced from the inner surface of the second body along the lateral direction away from the first body, and the nozzle assembly defines a width measured between a first point on the outer surface of the first body and a second point on the outer surface of the second body along the lateral direction, and
wherein the material inlet is disposed on the upper surface of the first body at a midpoint of the width.

11. The applicator assembly of claim 1 , further comprising a sealing element on the upper surface of the first body adjacent the material inlet.

12. The applicator assembly of claim 1 , further comprising a shim disposed between the first body and the second body, the shim being configured to contact the inner surface of the first body and the inner surface of the second body.

13. The applicator assembly of claim 1 , further comprising a plurality of material inlets disposed on the upper surface of the first body.

14. The applicator assembly of claim 13 , further comprising a shim disposed between the first body and the second body, the shim being configured to contact the inner surface of the first body and the inner surface of the second body.

15. The applicator assembly of claim 1 , further comprising a plurality of shims disposed between the first body and the second body, wherein at least one of the plurality of shims is configured to contact the inner surface of the first body, and another of the plurality of shims is configured to contact the inner surface of the second body.

16. The applicator assembly of claim 1 , wherein the material outlet comprises a lower lip at a distal end of the first body and a lower lip at a distal end of the second body.

17. The applicator assembly of claim 1 ,
wherein the material outlet comprises the inner surface of the first body and a bottom surface of the first body configured to define a lower lip at a distal end of the first body; and
wherein the material outlet further comprises the inner surface of the second body and a bottom surface of the second body configured to define a lower lip at the distal end of the second body.

18. The applicator assembly of claim 1 ,
wherein the first body and the second body are configured to operate in a first configuration in the applicator assembly and the first body and the second body are configured to operate in a second configuration in the applicator assembly; and
wherein the first configuration arranges the first body and the second body 180 degrees with respect to the applicator assembly from the second configuration.

Assignees

• Nordson Corp

Inventors

• Burmester Thomas
• Kufner Hubert

Classifications

• B05C5/027

  Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated (B05C5/0254 takes precedence) · CPC title

• B05C5/0241

  for applying liquid or other fluent material to elongated work, e.g. wires, cables, tubes · CPC title

• B05C5/0262 Primary

  adjustable in width, i.e. having lips movable relative to each other in order to modify the slot width, e.g. to close it · CPC title

• B05C5/0254 Primary

  Coating heads with slot-shaped outlet (B05C5/0283 takes precedence) · CPC title