Nozzle arrangement for applying fluids, system having such a nozzle arrangement, and method for applying fluids

Patent metadata

Field	Value
Publication number	US-2025289021-A1
Application number	US-202519226915-A
Country	US
Kind code	A1
Filing date	Jun 3, 2025
Priority date	Mar 11, 2019
Publication date	Sep 18, 2025
Grant date	—

Abstract

A nozzle arrangement applies fluids, in particular thermoplastic adhesives, to a substrate. The nozzle arrangement and the substrate move relative to one another in a first direction. The nozzle arrangement has a main body which is exchangeably connected to a mounting region of a distributor and which has an end-side side surface extending in a second direction running at least substantially perpendicular to the first direction. The end-side side surface of the main body can have mutually adjacently arranged first outlet nozzles for the fluid to be applied formed in a first row extending along the second direction and mutually adjacently arranged second outlet nozzles for a second fluid formed in a second row extending along the second direction and that is parallel to the first row.

First claim

What is claimed is:

1 . A nozzle arrangement for applying thermoplastic adhesive to a substrate, wherein the nozzle arrangement and the substrate move relative to one another in a first direction, wherein the nozzle arrangement has a main body which is able to be exchangeably connected to a mounting region of a distributor and which has an end-side side surface which extends in a second direction, which runs at least substantially perpendicular to the first direction;
wherein, in the end-side side surface of the main body, a multiplicity of mutually adjacently arranged first outlet nozzles for the thermoplastic adhesive to be applied is formed in a first row extending along the second direction; wherein, in the end-side side surface of the main body, a multiplicity of mutually adjacently arranged second outlet nozzles for a second fluid is furthermore formed in a second row extending along the second direction, wherein the second row runs parallel to the first row; wherein, in the end-side side surface of the main body, a multiplicity of mutually adjacently arranged third outlet nozzles for the second fluid is furthermore formed in a third row extending along the second direction, wherein the first row, with the first outlet nozzles, is arranged between the second and third rows, with the second and third outlet nozzles, and wherein an effective surface of the nozzle openings of the second and third outlet nozzles is of an equal size or at least substantially of an equal size; and wherein the nozzle arrangement is in the form of a laminated nozzle assembly which consists of a multiplicity of sheet-like elements which are areally connected to one another.

2 . The nozzle arrangement of claim 1 , wherein, for each of the first outlet nozzles, one of the second outlet nozzles is provided and is spaced apart from the first outlet nozzle in the first direction.

3 . The nozzle arrangement of claim 1 , wherein, for each of the first outlet nozzles, one of the third outlet nozzles is provided and is spaced apart from the first outlet nozzle in the first direction.

4 . The nozzle arrangement of claim 1 , wherein the effective surface of each nozzle opening of the first outlet nozzles is an equal size or at least substantially equal size, and wherein the nozzle openings of the first outlet nozzles are larger in size than the effective surface of the nozzle openings of one or both the second outlet nozzles or the third outlet nozzles.

5 . The nozzle arrangement of claim 1 , wherein, as viewed in a longitudinal direction of the end-side side surface, a length extent of each nozzle opening of the first outlet nozzles is smaller than the length extent of the nozzle openings of one or both the second outlet nozzles or the third outlet nozzles, or as viewed in a transverse direction of the end-side side surface, the length extent of each of the nozzle openings of the first outlet nozzles is greater than the length extent of the nozzle openings of the one or both the second nozzle outlet nozzles or the third outlet nozzles.

6 . The nozzle arrangement of claim 1 , wherein the first outlet nozzles are formed for dispensing the thermoplastic adhesive in a form of first fluid streams, and wherein the second outlet nozzles are formed for dispensing a gas in a form of second fluid streams such that (a) each of the second fluid streams runs at least substantially parallel to at least one of the first fluid streams or (b) each of the second fluid streams converges with the at least one of the first fluid streams.

7 . The nozzle arrangement of claim 1 , wherein the first outlet nozzles are formed for dispensing the thermoplastic adhesive in the form of first fluid streams, and wherein the third outlet nozzles are formed for dispensing a gas in the form of third fluid streams such that (a) each of the third fluid streams runs at least substantially parallel to at least one of the first fluid streams or (b) each of the third fluid streams converges with the at least one of the first fluid streams.

8 . The nozzle arrangement of claim 1 , wherein each of the first outlet nozzles is formed for dispensing the thermoplastic adhesive at an equal first fluid mass flow rate, wherein each of the second outlet nozzles is formed for dispensing a gas at an equal second fluid mass flow rate, and wherein each of the third outlet nozzles is formed for dispensing the gas at an equal third fluid mass flow rate.

9 . The nozzle arrangement of claim 8 , wherein the second fluid mass flow rate and the third fluid mass flow rate are equal; or
wherein the second fluid mass flow rate and the third fluid mass flow rate are different from one another and vary with respect to time.

10 . A nozzle arrangement for applying thermoplastic adhesive to a substrate while one or both of the nozzle arrangement or the substrate are moving relative to one another in a first direction, the nozzle arrangement comprising:
a main body configured to be exchangeably connected to a mounting region of a distributor that supplies the thermoplastic adhesive, the main body having an end-side side surface that is elongated in a second direction that is transverse to the first direction, the main body formed from multiple sheet elements flatly connected with each other; mutually adjacently arranged adhesive outlet nozzles in the end-side side surface of the main body, the adhesive outlet nozzles configured to direct the thermoplastic adhesive onto the substrate, the adhesive outlet nozzles arranged only in a first row extending along or parallel to the second direction, the adhesive outlet nozzles extending up into a first sheet element of the multiple sheet elements in the main body; and mutually adjacently arranged gas outlet nozzles in the end-side side surface of the main body, the gas outlet nozzles configured to direct gas toward the substrate, the gas outlet nozzles arranged in a second row and in a third row extending along or parallel to the second direction and parallel to the first row with the first row of the adhesive outlet nozzles between the second row and the third row of the gas outlet nozzles, the gas outlet nozzles extending up into a second sheet element of the multiple sheet elements in the main body, wherein an entirety of each of the gas outlet nozzles in the second sheet element are completely parallel to each other within the second sheet element.

11 . The nozzle arrangement of claim 10 , wherein the first direction and the second direction are substantially perpendicular to each other.

12 . The nozzle arrangement of claim 10 , wherein the gas outlet nozzles are spaced apart in the second row and in the third row such that a single one of the gas outlet nozzles in the second row and a single one of the gas outlet nozzles in the third row are disposed on either side of each of the adhesive outlet nozzles in the first row along the first direction.

13 . The nozzle arrangement of claim 10 , wherein each of the adhesive outlet nozzles forms a larger opening than any of the gas outlet nozzles.

14 . The nozzle arrangement of claim 10 , wherein each of the gas outlet nozzles forms an opening that is longer in the second direction than any of the adhesive outlet nozzles.

15 . The nozzle arrangement of claim 10 , wherein each of the adhesive outlet nozzles forms an opening that is wider in the first direction than any of the gas outlet nozzles.

16 . The nozzle arrangement of claim 10 , wherein the gas outlet nozzles are arranged in the second row and in the third row such that gas streams flowing out of the gas outlet nozzles are parallel

Assignees

• Illinois Tool Works

Inventors

• Pahl Andreas

Classifications

• B05C5/0237

  Fluid actuated valves · CPC title

• B05B7/0861

  with one single jet constituted by a liquid or a mixture containing a liquid and several gas jets (B05B7/0815 takes precedence) · CPC title

• B05C5/0254

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

• B05B7/0884 Primary

  the outlet orifices for jets constituted by a liquid or a mixture containing a liquid being aligned · CPC title

• 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