WO2019089436A1 - Dispositif d'application de fluide présentant une buse de contact modulaire à oscillateur fluidique - Google Patents

Dispositif d'application de fluide présentant une buse de contact modulaire à oscillateur fluidique Download PDF

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Publication number
WO2019089436A1
WO2019089436A1 PCT/US2018/057960 US2018057960W WO2019089436A1 WO 2019089436 A1 WO2019089436 A1 WO 2019089436A1 US 2018057960 W US2018057960 W US 2018057960W WO 2019089436 A1 WO2019089436 A1 WO 2019089436A1
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WO
WIPO (PCT)
Prior art keywords
fluid
flow
conduit
branch
application
Prior art date
Application number
PCT/US2018/057960
Other languages
English (en)
Inventor
Edward Wayne BOLYARD, Jr.
Original Assignee
Illinois Tool Works Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US15/800,878 external-priority patent/US10737287B2/en
Application filed by Illinois Tool Works Inc. filed Critical Illinois Tool Works Inc.
Priority to JP2020524098A priority Critical patent/JP7391838B2/ja
Priority to BR112020008739-4A priority patent/BR112020008739B1/pt
Priority to MX2020007143A priority patent/MX2020007143A/es
Priority to CN201880081870.2A priority patent/CN111491740B/zh
Priority to EP18804774.0A priority patent/EP3703864B1/fr
Publication of WO2019089436A1 publication Critical patent/WO2019089436A1/fr

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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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0241—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to elongated work, e.g. wires, cables, tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/08—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape of pulsating nature, e.g. delivering liquid in successive separate quantities ; Fluidic oscillators
    • 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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • 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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet

Definitions

  • the following description relates to a fluid application device for applying a fluid onto a strand of material, and in particular, a fluid application device having a modular contact nozzle with a fluidic oscillator so as to apply the fluid onto the strand of material in a non-linear pattern.
  • Nonwoven fabrics are engineering fabrics that provide specific functions such as absorbency, liquid repellence, resilience, stretch, softness, strength, flame retardant protection, easy cleaning, cushioning, filtering, use as a bacterial barrier and sterility.
  • nonwoven materials can provide a spectrum of products with diverse properties and can be used alone or as components of hygiene apparel, home furnishings, health care, engineering, industrial and consumer goods.
  • An adhesive application device may apply the glue to the strands with either a contact nozzle or a non-contact nozzle.
  • a contact nozzle discharges a volume of substantially stationary glue while a substrate, such as the strand, is fed by the glue.
  • the strand is in contact with the glue and the glue adheres to the strand as a result of the contact.
  • the glue may be discharged from an outlet as a fiber. The glue fiber is discharged over a gap between the outlet and the strand, and is ultimately received on the strand.
  • Discharging of the glue fiber may be controlled by a second fluid, such as air, discharged from adjacent outlets, to oscillate the glue fiber during application onto the strand.
  • a second fluid such as air
  • a non-contact nozzle may be beneficial for applying the glue fiber on the strand in a desired pattern, for example, in a substantially sinusoidal pattern.
  • a line speed i.e., a speed at which the strand is fed past the nozzle, typically cannot exceed about 400 meters per minute (mpm) to achieve the desired pattern using a non-contact nozzle.
  • a higher line speed may be achieved with a contact nozzle.
  • a contact nozzle is limited to applying the glue onto the strand in a substantially linear pattern.
  • a fluid application device having an applicator head and a nozzle assembly fluidically coupled to the applicator head.
  • the nozzle assembly includes a first conduit configured to receive a first fluid from the applicator head, the first conduit having a first inlet configured to receive the first fluid and a flow- distributing channel downstream from, and in fluid communication with the fluid inlet, the flow- distributing channel configured to direct the first fluid in a lateral direction.
  • the nozzle assembly further includes an application conduit having a first fluid receiving section configured to receive the first fluid from the flow-distributing channel, and an orifice fluidically connected to the application conduit, the orifice configured to discharge the first fluid for application onto a strand of material.
  • a nozzle assembly for a fluid application device.
  • the nozzle assembly includes a first conduit configured to receive a first fluid from the applicator head, the first conduit comprising a first inlet configured to receive the first fluid and a flow-distributing channel downstream from, and in fluid communication with the fluid inlet, the flow-distributing channel configured to direct the first fluid in a lateral direction.
  • the nozzle assembly further includes an application conduit including a first fluid receiving section configured to receive the first fluid from the flow-distributing channel, and an orifice fiuidically connected to the application conduit, the orifice configured to discharge the first fluid for application onto a strand of material
  • FIG. 1 is a perspective view of a fluid application device having a contact nozzle assembly according to an embodiment described herein;
  • FIG. 2 is a front perspective view of the fluid application device of FIG. 1;
  • FIG. 3 is a plan view of contact nozzle components according to an embodiment described herein;
  • FIGS. 4A-4H are enlarged views of the nozzle components of FIG. 3;
  • FIG. 5 is an exploded perspective view of the contact nozzle components of FIG. 3;
  • FIG. 6 is a plan view of the contact nozzle components according to another embodiment described herein;
  • FIGS. 7A-7F are enlarged views of the nozzle components of FIG. 6;
  • FIG. 8 is a plan view of contact nozzle components according to another embodiment described herein;
  • FIGS. 9A and 9B are enlarged views of some of the nozzle components of
  • FIG. 8
  • FIGS. 10A and 10B are enlarged views of another embodiment the nozzle components in FIGS. 9 A and 9B;
  • FIGS. 11 A and 1 IB are enlarged view of some of the nozzle components of FIG. 8;
  • FIG. 12 is a plan view of contact nozzle components according to another embodiment;
  • FIGS. 13A and 13B are enlarged views of another embodiment the nozzle components in FIGS. 9 A and 9B;
  • FIGS. 14A an 14B are enlarged views of another embodiment the nozzle components in FIGS. 9 A and 9B;
  • FIGS. 15A and 15B are enlarged views of another embodiment the nozzle components in FIGS. 9 A and 9B.
  • FIG. 1 is a side perspective view of a fluid application device 10 according to an embodiment described herein.
  • the fluid application device 10 may be used to apply a first fluid onto an article.
  • the fluid application device 10 may apply a first fluid onto an article.
  • the first fluid may be a viscous fluid that is a liquefied material heated or non-heated between about 10 and 50,000 centipoise (cps).
  • the first fluid may be, for example, an adhesive
  • the article may be, for example, an elastic or non-elastic strand 12 of material. That is, in one embodiment, the fluid application device 10 is part of a strand coating system.
  • the adhesive may be applied to the strand 12 so that the strand 12 may be adhered to a substrate 14, such as a nonwoven material.
  • the strand 12 in one embodiment, may be made from an elastic material and may be in either a stretched condition or a relaxed condition as the first fluid is applied.
  • the strand 12 of material may be, for example, spandex, rubber or other similar elastic material.
  • the fluid application device 10 includes an applicator head 16.
  • the applicator head 16 may include a first fluid supply unit 18 and a second fluid supply unit 20.
  • the fluid application device 10 also includes a nozzle assembly 22 fluidically coupled to the applicator head 16.
  • the first fluid supply unit 18 is configured to receive the first fluid Fl from a first fluid source (not shown)
  • the second fluid supply unit 20 is configured to receive a second fluid F2 from a second fluid source (not shown).
  • the nozzle assembly 22 is fluidically coupled to, i.e., is in fluid communication with, the first fluid supply unit 18.
  • the nozzle assembly 22 may also be fluidically coupled to, i.e., may be in fluid communication with, the second fluid supply unit 20. Accordingly, the nozzle assembly 22 may receive the first fluid Fl from the first fluid supply unit 18 and the second fluid F2 from the second fluid supply unit 20.
  • the applicator head 16 may also include an adapter
  • the applicator head 16 may also include a flow control module 26.
  • the flow control module 26 may include a valve or series of valves to regulate a flow of the first fluid and second fluid from the first fluid supply unit 18 and second fluid supply unit 20, respectively, to the nozzle assembly 22.
  • the flow control module 26 and the adapter 24 may be integrated such that the adapter 24 and the flow control module 26 are one and the same. That is, in some embodiments, the adapter 24 and flow control module 26 are implemented as the same unit.
  • This unit provides an adhesive path between one of or both of the first and second fluid supply units 18, 20 and the nozzle assembly 22.
  • This unit, i.e., the combined adapter 24 and flow control module 26 may also include valving to start and stop the flow of adhesive.
  • Each orifice 28 may have a width of approximately 0.016-0.020 inches (in.), but is not limited thereto.
  • the width of the orifices 28 may be varied to accommodate different sizes of strands 12.
  • the second fluid F2 (see FIG. 4) may also be discharged adjacent to or at the orifice 28 as described further below.
  • the second fluid F2 may be used to control the application of the first fluid on the strand 12, for example, by moving the first fluid Fl back and forth across a width of, or at least partially around an outer circumference of, the strand 12 as the first fluid Fl is applied.
  • the first fluid Fl may be an adhesive, such as a hot melt adhesive.
  • the adhesive may be discharged from the orifice 28, for example, as a bead that is contacted directly by the strand 12.
  • the applicator head 16 may be heated to either melt the first fluid or maintain the first fluid Fl in a melted condition.
  • the first fluid supply unit 18, the second fluid supply unit 20, and/or the nozzle assembly 22 may be heated, and thus, may also radiate heat outwardly.
  • the applicator head 16 may also include a heater.
  • the second fluid F2 may be, for example, air, and may be used to control the discharge of the first fluid Fl at the orifice 28 of the nozzle assembly 22 and onto the strand 12 as described above.
  • there are two branches 174a, 174b (see FIGS. 3 and 4) configured to discharge the second fluid F2 adjacent to each orifice 28 that discharges the first fluid Fl as described further below. It is understood, however, that the number of branches 174a, 174b associated with each orifice 28 may vary.
  • the second fluid may be alternately discharged from the outlets adjacent to each orifice 28 to cause the first fluid Fl to fluctuate and during application to the strand 12.
  • the fluid application device 10 further includes a strand engagement device 30.
  • the strand engagement device 30 may be formed integrally with the applicator head 16. Alternatively, the strand engagement device 30 may be secured to the applicator head 16 or other component of the fluid application device 10 with a suitable fastener, including, but not limited to, bolts, screws, rivets, adhesives, welds and the like.
  • the strand engagement device 30 is configured to engage the strands 12 and move the strands 12 toward or away from the applicator head 16 and nozzle assembly 22 based on a line condition (active or static) of the fluid application device 10, as described further below.
  • the contact nozzle assembly 22 further includes a depending guide section 32 to assist in positioning of the strands 12 relative to the orifices 28 and branches 174a, 174b (see FIGS. 3 and 4) of the nozzle assembly 22.
  • the guide section 32 also includes at least one guide slot 34 through which the strand 12 may be fed.
  • the guide slot 34 includes an open end 36 and a closed end 38.
  • the closed end 38 is positioned immediately adjacent to the orifice 28.
  • the open end 36 may be formed in a substantially inverted v-shape, while the closed end 38 may be rounded or curved so that it substantially matches a profile of the strand 12.
  • the guide slot 34 may have a substantially constant width between the open end 36 and closed end 38.
  • the closed end 38 may act as a limit or stop for the strands 12 to position the strands 12 at the desired position relative the orifices 28 and branches 174a, 174b (see FIGS. 3 and 4) for application of the first fluid Fl .
  • the strand 12 contacts the closed end 38.
  • the strand 12 may be spaced from, but in close proximity to the closed end 38.
  • the at least one guide slot 34 may include three guide slots 34. However, it is understood that the number of guide slots 34 may vary, and is not limited to the example above.
  • Each guide slot 34 is associated with a corresponding orifice 28 of the nozzle assembly 22. That is, each guide slot 34 is substantially aligned with a corresponding orifice 28 of the nozzle assembly 22.
  • the closed end 38 of respective guide slots 34 may be aligned with respective orifices 28.
  • the strand engagement device 30 includes an engagement arm 44 configured to support and/or guide the strand or strands 12.
  • the engagement arm 44 is adjustable to move the strands 12 within, or relative to, respective guide slots 34 to position the strands 12 relative to the respective orifices 28 and outlets.
  • FIG. 2 shows the engagement arm 44 in a first position.
  • the engagement arm 44 is adjustable between a first position, as shown in FIG. 2, and a second position (not shown).
  • the first position corresponds to a position where the engagement arm 44 is spaced a first distance from the applicator head 16.
  • the first distance is sufficient to prevent or limit damage, such as burn through, to the strands 12 caused from heat radiating from the applicator head 16 and/or nozzle assembly 22.
  • the engagement arm 44 in the first position may space the strands 12 approximately 3-5 mm from a heat source of the applicator head 16. It may be desirable to maintain the engagement arm 44 in the first position when the fluid application device is in a static line condition, i.e., when the strands 12 are not being fed past respective orifices 28.
  • the second position corresponds to a position where the engagement arm 44 is spaced a second distance, less than the first distance, from the applicator head 16, such that the strands 12 are moved closer to the applicator head 16 and the respective orifices 28.
  • the second position of the engagement arm 44 positions the strands approximately at or partially within the orifices 28. That is, the second position of the engagement arm 44 generally corresponds to a position where the first fluid Fl may be applied directly on the strand 12.
  • Moving the engagement arm 44 to, and maintaining the engagement arm in, the second position may be beneficial when the fluid application device 10 is in an active line condition, i.e., when the strands 12 are being fed past respective orifices 28, so that the first fluid Fl may be efficiently applied on the strands 12 and overspray may be reduced.
  • the engagement arm 44 may be adjusted by an actuating assembly 48.
  • the actuating assembly 48 may be, for example, a pneumatically controlled piston 50 and cylinder 52.
  • the piston 50 may be movable within the cylinder 52 in response to air or another gas being introduced into the cylinder 52.
  • the piston 50 may be connected directly or indirectly to the engagement arm 44 such that movement of the piston 50 in and out of the cylinder 52 causes the engagement arm 44 to move toward or away from the applicator head 16.
  • the nozzle assembly 22 may be formed as a modular unit. That is, the nozzle assembly 22 may be selectively removed from and secured to the fluid application device 10. For example, the nozzle assembly 22 may be selectively removed from and secured to the applicator head 16, and more specifically, in some embodiments, the adapter 24. Accordingly, the nozzle assembly 22 may be replaced in the event a new or different nozzle assembly is desired or required.
  • the nozzle assembly 22 is selectively removable from and securable to the fluid application device 10 by way of at least one securing element 74 (FIG. 2).
  • the nozzle assembly 22 includes at least one securing opening 76 extending therethrough, each securing opening 76 configured to receive a respective securing element 74.
  • the nozzle assembly 22 may include two securing openings 76, each configured to receive a respective securing element 74. It is understood that the number of securing openings 76 is not limited to the example above, however. Individual securing openings 76 may be formed as an opening or slot extending through the nozzle assembly 22. The opening or slot may be closed about its periphery or include an open side along an edge of the nozzle assembly 22. The securing elements 74 extend through the securing openings 76 and are received in corresponding bores (not shown) in the fluid application device 10 to secure the nozzle assembly 22 to the applicator head 16. This allows for a modular design of the fluid application device 10 and nozzle assembly 22 to facilitate maintenance, replacement or the like.
  • FIG. 3 is a plan view of contact nozzle assembly components according to an embodiment described.
  • the nozzle assembly 22 may be formed by a plurality of laminated or stacked plates 122a-h.
  • the nozzle assembly includes first plate 122a, second plate 122b, third plate 122c, fourth plate 122d, fifth plate 122e, sixth plate 122f, seventh plate 122g and eighth plate 122h. It is understood, however, that the number of plates 122 in the nozzle assembly 22 may vary and is not limited to the example shown in FIG. 3.
  • FIGS. 4A-4H are enlarged views of the first through eighth plates, 122a-122h, respectively, shown in FIG. 3.
  • the nozzle assembly 22 includes a fluidic oscillator configured to control application of the first fluid Fl onto the strand 12 such that the first fluid Fl may be applied in a non-linear pattern.
  • the fluidic oscillator may discharge a second fluid F2 at opposite sides of the orifice 28, via first and second branches 174a, 174b, to cause the first fluid Fl to be applied in a non-linear pattern across a width or at least a portion of the outer circumference, of the strand 12.
  • the nozzle assembly 22 includes a first conduit 130 in which the first fluid Fl may flow.
  • the fluidic oscillator of the nozzle assembly 22 may be formed by a second conduit 132 within the nozzle assembly 22, an oscillator conduit 134 in fluid communication with the second conduit 132, and an application conduit 136, fluidically connected to the first conduit 130 and second conduit 132.
  • the first conduit 130 is configured to a deliver the first fluid Fl to the application conduit 136.
  • the first conduit 130 includes a first inlet 138 configured to receive the first fluid Fl from the first fluid supply module 18. It is understood that the inlet 138 may be formed in a side of plate of the nozzle assembly 22 facing toward the applicator, i.e., away from remaining plates of the nozzle assembly, such that the first fluid Fl may be received in the first conduit 130.
  • the first inlet 138 may be formed on a side of the first plate configured to abut the applicator head 16, or other adjacent component, from which the first fluid is discharged.
  • the first conduit 130 may be generally triangular in cross- section, with rounded corners.
  • the first conduit 130 may also include a width and height. In one example, the width is greater than the height. However, it is understood that these configurations are described for purposes of example only, and the present disclosure is not limited thereto.
  • the first conduit may be formed in different suitable cross-sectional shapes and have varying relative dimensions of width and height.
  • the second conduit 132 is formed in the nozzle assembly 22 and is configured to deliver the second fluid F2 to the application conduit 136.
  • the second conduit 132 includes a second inlet 140 configured to receive the second fluid F2 from the second fluid supply module 20. It is understood that the second inlet 140 may be formed in a plate of the nozzle assembly 22, for example, first plate 122a, so that the second fluid F2 is received in the second conduit 132 from the second inlet 140.
  • the second conduit 132 may include one or more flow-splitting sections 142 (FIGS. 4C and 4D), as described further below, where the second conduit 132 may be split so as to deliver the second fluid F2 to first and second branches 174a, 174b of the application conduit 136.
  • the flow-splitting section 142 may include a first branch feed hole 144a and a second branch feed hole 144b (FIG. 4C). The first branch feed hole 144a and second branch feed hole 144b may be in direct fluid communication with the application conduit 136 so as to supply the second fluid F2 to the application conduit 136 (FIG. 4B).
  • the second conduit 132 may include a first portion 146 (FIGS. 4B-4E), a second portion 148 (FIGS. 4C-4E) and a reservoir 150 (FIG. 4F) spacing apart and fluidically connecting the first portion 146 and the second portion 148.
  • the first portion 146 extends between the second inlet 140 and the reservoir 150 generally in a first direction Dl (FIG. 5).
  • the first portion 146 may be formed as an elongated opening, having a generally inverted "v,” or "u,” shape in cross- section.
  • other angled or curved elongated shapes, or non-angled or non-curved shapes that do not interfere with fastening openings 80 may be suitable as well.
  • the second portion 148 extends between the reservoir 150 and the application conduit 136 generally in a second direction D2 (FIG. 5).
  • the first direction Dl and second direction D2 are generally opposite to one another.
  • the reservoir 150 extends generally perpendicularly between the first portion 146 and the second portion 148, but is not limited to this configuration.
  • first direction D 1 refers to the direction from the second inlet 140 to the reservoir 150, and may include variations in the direction as a result of the specific geometry and configuration of the first portion 146.
  • second direction D2 refers to the direction from the reservoir 150 to application conduit 136, and may include variations in the direction as a result of the specific geometry and configuration of the second portion 148.
  • the reservoir 150 is configured to receive the second fluid F2, flowing in the first direction Dl, from the first portion 146 of the second conduit 132.
  • the reservoir 150 may be formed substantially in a U-shape.
  • the reservoir 150 may include first and second receiving legs 152a, 152b conflgured to receive the second fluid F2 from the first portion 146 of the second conduit 132.
  • the reservoir 150 may further include a cross-leg 154 fluidically connected to the first and second receiving legs 152a, 152b and configured to receive the second fluid F2 from the first and second receiving legs 152a, 152b.
  • the cross-leg 154 is fluidically connected to the second portion 148 of the second conduit 132 and is configured to deliver the second fluid F2 to the second portion 148 such that the second fluid F2 may flow in the second direction D2 to the application conduit 136. It is understood that various other shapes and configurations for the reservoir 150 are envisioned that allow for the second fluid F2 to flow from the first portion 146 to the second portion 148 of the second conduit 132.
  • the second portion 148 of the second conduit 132 may include one or more body feed holes 156 fiuidically connected to the reservoir 150 and configured to receive the second fluid F2 from the reservoir 150. In the example shown in FIGS. 3 and 4E, the body feed hole 156 is configured to receive the second fluid F2 from the cross-leg 154 of the reservoir 150.
  • the body feed hole 156 is fiuidically connected to the flow-splitting section 142.
  • the flow-splitting section 142 may include a generally body-shaped portion.
  • the body-shaped portion may include a head 160, first and second arms 162a, 162b and first and second legs 164a, 164b.
  • the head 160 of the flow-splitting section 142 is fiuidically connected to the body feed hole 156 and is configured to receive the second fluid F2 therefrom.
  • the second fluid F2, received in the head 160 of the flow-splitting section 142 may then to the first and second arms 162a, 162b and first and second legs 164a, 164b of the flow-splitting section 142.
  • the flow-splitting section 142 is configured to split the flow of the second fluid F2.
  • the first leg 164a (FIG. 4D) of the flow-splitting section 142 may be aligned with and fiuidically connected to the first branch feed hole 144a (FIG. 4C) and the second leg 164b (FIG. 4D) of the flow-splitting section 142 may be aligned with and fiuidically connected to the second branch feed hole 144b (FIG. 4C).
  • first and second branch feed holes 144a, 144b may receive the second fluid F2 from the first and second legs 164a, 164b, respectively, of the flow- splitting section 142.
  • the first and second branch feed holes 144a, 144b are fiuidically connected to the application conduit 136 and are configured to deliver the second fluid F2 to the application conduit 136 as described further below.
  • the oscillator conduit 134 may be formed in the nozzle assembly 22.
  • the oscillator conduit 134 is fiuidically connected to the second conduit 132, for example, at the flow-splitting section 142 and is configured to vary a pressure of the second fluid F2 flowing through the flow-splitting section 142, in part, by creating or amplifying a turbulent flow in the second fluid F2.
  • the oscillator conduit 134 includes one or more pairs of arm feed holes, each pair of arm feed holes including first and second arm feed holes 166a, 166b and one or more pairs of leg feed holes, each pair of leg feed holes including including first and second leg feed holes 168a, 168b.
  • the first and second arm feed holes 166a, 166b are aligned with and fluidically connected to the first arm 162a and second arm 162b, respectively, of the flow-splitting section 142.
  • the first and second leg feed holes 168a, 168b are aligned with and fluidically connected to the first leg 164a and second leg 164b, respectively, of the flow-splitting section 142.
  • the oscillator conduit 134 further includes one or more pairs of oscillator slots, each pair including first and second oscillator slots 170a, 170b.
  • the first oscillator slot 170a is aligned with and fluidically connected to the first arm feed hole 166a and the first leg feed hole 168a.
  • the second oscillator slot 170b is aligned with and fluidically connected to the second arm feed hole 166b and the second leg feed hole 168b.
  • the first oscillator slot 170a is configured to receive the second fluid F2 from the first leg feed hole 168a and discharge the second fluid F2 through the first arm feed hole 168b.
  • the second oscillator slot 170b is configured to receive the second fluid F2 from the second leg feed hole 168b and discharge the second fluid F2 through the second arm feed hole 166b.
  • the application conduit 136 includes a receptacle 172, the first branch 174a and the second branch 174b.
  • the receptacle 172 is fluidically connected to the first conduit 130, and thus, is configured to receive the first fluid Fl from the first conduit 130.
  • the first branch 174a and the second branch 174b are aligned with and fluidically connected to the first branch feed hole 144a and second branch feed hole 144b, respectively. Accordingly, the first branch 174a and the second branch 174b are configured to receive the second fluid F2 from the first branch feed hole 144a and second branch feed hole 144b, respectively.
  • the receptacle 172, the first branch 174a and the second branch 174b are fluidically connected to the orifice 28.
  • the oscillator conduit 134 may include three pairs of arm feed holes 166a, 166b, three pairs of leg feed holes 168a, 168b and three pairs of oscillator slots 170a, 170b.
  • the nozzle assembly as shown in FIG. 4B, for example, may include three application conduitsl36. Accordingly, the first fluid Fl may be applied on three strands via three respective application conduits 136.
  • the first conduit 130 may be fiuidically connected to each application conduit 136, and thus, may supply the first fluid Fl to respective receptacles of the application conduits 136.
  • the first portion 146 of the of the second conduit 132 may supply the second fluid F2 to the reservoir 150, and in turn, to the second portion 148 of the second conduit 132, the oscillator conduits 134 and the application conduits 136.
  • FIGS. 3 and 4A-4F are non-limiting, and that the number of flow-splitting sections 142, including the body-shaped portions, first branch feed holes 144a, and second branch feed holes 144b, body feed holes 156, arm feed hole pairs 166a, 166b, leg feed hole pairs 168a, 168b, oscillator slot pairs 170a, 170b, and application conduits 136 may vary depending on the number of strands of material 12 the nozzle assembly 22 is configured to accommodate.
  • the nozzle assembly 22 may be configured to accommodate, for example, anywhere from one strand to ten strands, but is not limited to this range.
  • the nozzle assembly 22 may be formed by a plurality of laminated or stacked plates. In one embodiment, the nozzle assembly 22 is formed by eight plates 122a-h.
  • the first conduit 130, second conduit 132, oscillator conduit 134 and application conduit 136 may be formed in and configured to extend in one or more plates.
  • the first conduit 130 may be formed in the first plate 122a.
  • the first inlet 136 may be formed at a side of the first plate 122a facing an adjacent component, such as the adapter 24.
  • the first conduit 130 may be formed through a thickness of the first plate 122a.
  • the second inlet 140 may be formed in the first plate 122a as well.
  • the second conduit 132 as shown in FIGS. 4A-4F, may extend through the thickness of the first plate 122a, the second plate 122b, the third plate 122c, the fourth plate 122d, the fifth plate 122e and the sixth plate 122f.
  • the first portion 146 of the second conduit 132 extends through the second plate 122b, the third plate 122c, the fourth plate 122d and the fifth plate 122e.
  • the first portion 146 may be formed as an elongated, angled or curved opening in the second through fifth plates 122b-e. These elongated openings may be similarly positioned on the plates 122b-e so that they are substantially aligned when the nozzle assembly 22 is assembled and secured to the adapter 24.
  • the reservoir 150 may be formed in the sixth plate 122f.
  • the second portion 148 of the second conduit 132 may be formed in the third plate 122c, fourth plate 122d and fifth plate 122e.
  • the body feed hole 156 may be formed in the fifth plate 122e
  • the flow-splitting section 142 may be formed in the fourth plate 122d
  • the first and second branch feed holes 144a, 144b may be formed in the third plate 122c.
  • the oscillator conduit 134 may be formed in the fifth plate 122e and sixth plate 122f.
  • the first and second arm feed holes 166a, 166b and the first and second leg feed holes 168a, 168b may be formed in the fifth plate 122e.
  • the first and second oscillator slots 170a, 170b may be formed in the sixth plate 122f.
  • the depending guide section 32 is formed on first plate 122a, second plate 122b and third plate 122c (FIGS. 4A-4C).
  • the guide slots 34 are formed on the depending guide section 32 on the first, second and third plates 122a, 122b, 122c as well.
  • Each guide slot 34 may include a first guide slot segment 34a formed on the first plate 122a, a second guide slot segment 34b formed on the second plate 122b, and a third guide slot segment 34c formed on the on the third plate 122c.
  • the first guide slot segment 34a includes an open end 36a and a closed end 38a.
  • the closed end 38a may include a curved surface configured to substantially match a profile of the strand 12 and act as a stop for the strand 12 to properly position the strand 12 relative to the orifice 28.
  • the second guide slot segment 34b includes an open end 36b.
  • the open end 36b may include a substantially inverted v-shaped portion as described above.
  • the second guide slot segment 34b is in communication with the orifice 28 at an end opposite to the open end 36b.
  • the third guide slot segment 34c includes an open end 36c and a closed end 38c.
  • the open end 36c may include a substantially inverted v-shaped portion as described above.
  • the closed end 38c of the third guide slot segment 34c may include a substantially square or rectangular portion having a width greater than the width of an adjacent portion of the guide slot segment 34c.
  • the nozzle assembly 22 includes three guide slots 34, each guide slot 34 including first, second and third guide slot segments 34a-c.
  • the number of guide slots 34 may vary to accommodate different number of strands 12.
  • the number of guide slots 34 may correspond to the number of application conduits 136.
  • the first guide slot segment 34a, second guide slot segment 34b and third guide slot segment 34c are substantially aligned to form the guide slot 34.
  • the strand 12 may be received through the respective open ends 36a, 36b, 36c, i.e., the open end 36 of the guide slot 34, and moved to the closed end 38 of the guide slot 34.
  • the closed end 38 of the guide slot 34 is defined by the first closed end 38a and third closed end 38c.
  • the orifice 28 is formed in the second plate 122b immediately adjacent to and between the closed ends 38a, 38c.
  • the seventh plate 122g and eighth plate 122h are positioned at an opposite end of the nozzle assembly 22 from the first plate 122a.
  • the seventh plate 122g acts as a seal that forms a boundary for the second conduit 132. That is, the seventh plate 122g is configured to seal the second conduit 132 at the reservoir 150 and oscillator slots 170a, 170b.
  • the eighth plate 122h is an end plate for increasing the structural integrity of the nozzle assembly 22.
  • the eighth plate 122h may include a beveled edge.
  • At least one fastening hole 80 may be formed in each of the plates 122a-h.
  • each plate 122a-h In one embodiment, three fastening holes 80 are formed in each plate 122a-h. However, it is understood that the present disclosure is not limited to this configuration and the number of fastening holes 80 may vary.
  • the fastening holes 80 of the plates 122a-h are aligned with one another so as to receive a fastener 82 (FIGS. 1 and 2) through each series of aligned fastening holes 80.
  • the fastener 82 is configured to tightly fasten the plates 122a-h together so that leakage of the first fluid Fl and/or second fluid F2 between individual plates 122a-h is limited or prevented.
  • FIG. 5 is an exploded perspective view of the nozzle assembly 22 according to an embodiment described herein.
  • the first inlet 138 is configured to receive the first fluid Fl from the first fluid supply module 18.
  • the first conduit 130 is configured to receive the first fluid Fl, via the first inlet 138 and supply the first fluid Fl to the application conduit 136.
  • the receptacle 172 of the application conduit 136 receives the first fluid Fl, and is configured to supply the first fluid Fl to the orifice 28 for application onto the stand of material 12.
  • the nozzle assembly 22 includes three application conduits 136 to apply the first fluid on three respective strands 12.
  • each of application conduits 136 may be fed from a single, common, first conduit 130.
  • the nozzle assembly 22 is configured to receive the second fluid F2 through the second inlet 140.
  • the second conduit 132 is configured to receive the second fluid F2 from the second inlet 140 and feed the second fluid F2 through the nozzle assembly 22 to the application conduit 136.
  • the first portion 146 of the second conduit 132 receives the second fluid F2 from the second inlet 140 and supplies the second fluid F2 to the reservoir 150.
  • the reservoir 150 is configured to receive the second fluid F2 from the first portion 146 and discharge the second fluid F2 to the second portion 148 of the second conduit 132.
  • each body feed hole 156 may receive the second fluid
  • Each body feed hole 156 supplies the second fluid F2 to a respective flow-splitting section 142.
  • the second fluid F2 may be received at a respective head 160 of each flow-splitting section 142 from the corresponding body feed hole 156.
  • the second fluid F2 may flow through each flow-splitting section 142 from the head 160 to the first and second legs 164a, 164b.
  • the first and second branch feed holes 144a, 144b are configured to receive the second fluid F2 from respective first and second legs 164a, 164b for each flow-splitting section 142. Accordingly, the first and second branch feed holes 144a, 144b may supply the second fluid F2 to corresponding first and second branches 174a, 174b of a respective application conduit 136.
  • a turbulent flow of the second fluid F2 in the second portion 148 of the second channel may result in the second fluid F2 being received at the first and second legs 164a, 164b from the head 160 at the flow-splitting section 142 at different pressures.
  • a portion of the fluid at the higher pressure flows into the oscillator conduit 134, while fluid at the lower pressure flows to a corresponding branch supply feed hole 144a or 144b.
  • the second fluid F2 may be initially received at the first leg
  • the second fluid F2 received in the first leg 164a, at the higher pressure, may be at least partially discharged to the first leg feed hole 168a of the oscillator conduit 134 and then into the first oscillator slot 170a.
  • the second fluid F2 may then flow through the first oscillator slot 170a and be discharged from the first oscillator slot 170a through the first arm feed hole 166a of the oscillator conduit 134.
  • This portion of second fluid F2 may then be received in the first arm 162a of the flow-splitting section 142.
  • Another portion of the higher pressure second fluid F2 initially received in the first leg 164a is discharged to the first branch feed hole 144a, and in turn, to the first branch 174a of the application conduit 136.
  • the second fluid F2 initially received in the second leg 164b, at the lower pressure, may be discharged from the second leg 164b to the second branch feed hole 144b.
  • the second fluid F2 may flow though the second branch feed hole 144b and into the second branch 174b of the application conduit 136.
  • the second fluid F2 received at the first arm 162a from the oscillator conduit 134, at a higher pressure, may then flow into the second leg 164b of the flow-splitting section 142 due to the initial lower pressure of the second fluid in the second leg 164b.
  • This causes the second leg 164b to become the leg having the second fluid F2 at the higher pressure, while the first leg 164a becomes the leg having the second fluid F2 at the lower pressure. That is, the first and second legs 164a, 164b alternate between receiving the second fluid at a higher pressure and a lower pressure by way of the oscillator conduit 134.
  • a portion of the second fluid F2 may be discharged to the second leg feed hole 168b of the oscillator conduit 134 and then into the second oscillator slot 170b.
  • the second fluid F2 may then flow through the second oscillator slot 170b and be discharged through the second arm feed hole 166b of the oscillator conduit 134.
  • This portion of second fluid F2 may then be received in the second arm 162b of the flow- splitting section 142.
  • Another portion of the higher pressure second fluid F2 received in the second leg 164b is discharged to the second branch feed hole 144b, and in turn, to the second branch 174b of the application conduit 136.
  • the second fluid F2 may be supplied to the first and second branch feed holes 144a, 144b at alternating higher and lower relative pressures, and in turn, to the first branch 174a and second branch 174b at alternating higher and lower relative pressures.
  • the varying pressures of the second fluid F2 supplied to the first and second branches 174a, 174b cause the second fluid F2 to be discharged to the orifice 28 at different pressures, thereby causing the first fluid Fl to be fluctuated back and forth across a width of the strand 12.
  • this configuration causes a lateral fluctuation in first fluid Fl as it is applied onto the strand 12, such that the first fluid Fl is applied in an irregular, non-predetermined, and/or non-repeatable pattern.
  • Fl may be an adhesive, such as a hot melt adhesive that is gathered in the receptacle 172 of the application conduit 136 and is forced through the orifice 28 for direct application on the strand 12, which is positioned at the orifice 28.
  • the first and second branches 174a, 174b may be positioned on opposite sides of the orifice 28.
  • the second fluid F2 may be, for example, air, and may be discharged from the first branch 174a and second branch 174b at varying pressures causing the first fluid Fl to fluctuate across a width of the strand 12 during application.
  • a contact nozzle assembly may be provided that applies an adhesive directly to a strand of material in a non-linear pattern.
  • the fluid application device 10 may be operated at increased line speeds associated with contact nozzle configurations, while still providing a non-linear pattern of adhesive applied onto the strand.
  • a non-linear adhesive pattern may allow for the strand or strands 12 to be bonded to the substrate 14 over a larger rotational range of the strands 12 compared to a linear application pattern. That is, with a linear adhesive pattern, the strand or strands 12 must be accurately positioned relative to the substrate so that the linearly applied adhesive contacts the substrate. With the non -linear pattern, the strand or strands 12 may be rotated, intentionally or
  • the non-linear pattern may allow the strand or strands 12 to be bonded to the substrate 14 at points or segments, rather than in a continuous line. This configuration may provide added flexibility, as the strand or strands 12 are allowed to freely stretch and contract along portions between the bonded segments.
  • FIG. 6 is a front view of the components of a nozzle assembly 222 according to another embodiment of the present disclosure.
  • FIGS. 7A-7F are enlarged plan views of the components of the nozzle assembly 222 of FIG. 6.
  • the first fluid Fl may be applied to a strand 12 of material from opposed first and second branches 374a, 374b of one or more application conduits 336 at varying pressures.
  • the first fluid Fl may be fluctuated across a width of the strand 12 during application onto the strand 12.
  • a second fluid F2 is not used to control application of the first fluid F2 on the strand 12.
  • the first fluid Fl is discharged from opposing branches 374a, 374b and is fluctuated as result of varying discharge pressures.
  • the first conduit 330 may include a first inlet (not shown) at a side of the nozzle assembly 222 facing the adjacent component, such as the adapter 24.
  • the first conduit 330 is configured to receive the first fluid Fl from the first fluid supply module 18 via the first inlet (not shown).
  • the first conduit 330 includes a first portion 346 that is generally elongated in a width direction.
  • the first conduit 330 may further include one or more body feed holes 356 (FIG. 7B) aligned with and fluidically connected to first portion 346.
  • the first conduit 330 further includes at least one flow-splitting section 342.
  • the flow-splitting section 342 may be formed as a generally body-shaped portion having a head 360, first and second arms 362a, 362b and first and second legs 364a, 364b.
  • the application conduit 336 includes the first branch 374a and the second branch 374b as noted above.
  • the first and second branches 374a, 374b are angled relative to one another so as to form a substantially V- shaped cross-section.
  • the first and second branches 374a, 374b are in fluid communication with and converge at the orifice 228, where the first fluid Fl may be applied to the strand 12.
  • the first branch 374a and second branch 374b are fluidically connected to the first leg 364a and the second leg 364b, respectively, of the flow-splitting section 342.
  • the first branch 374a may receive the first fluid Fl from the first leg 364a and the second branch 374b may receive the first fluid Fl from the second leg 364b.
  • three application conduits 336 are provided. However, it is understood that the present disclosure is not limited to the configuration, and the number of application conduits 336 may vary to accommodate a different number of strands 12.
  • the nozzle assembly 222 further includes an oscillator conduit 334.
  • the oscillator conduit 334 is fluidically connected to the first conduit 330 at the flow-splitting section 342 and is configured to vary a pressure of the first fluid Fl flowing through the flow-splitting section 342, in part, by creating or amplifying a turbulent flow in the first fluid F 1.
  • the oscillator conduit 334 includes one or more pairs of arm feed holes, each pair of arm feed holes including first and second arm feed holes 366a, 366b and one or more pairs of leg feed holes, each pair of leg feed holes including first and second leg feed holes 368a, 368b.
  • the first and second arm feed holes 366a, 366b are aligned with and fluidically connected to the first arm 362a and second arm 362b, respectively, of the flow-splitting section 342.
  • the first and second leg feed holes 368a, 368b are aligned with and fluidically connected to the first leg 364a and the second leg 364b, respectively, of the flow-splitting section 342.
  • the oscillator conduit 334 further includes one or more pairs of oscillator slots, each pair of oscillator slots including first and second oscillator slots 370a, 370b.
  • the first oscillator slot 370a is aligned with and fluidically connected to the first arm feed hole 366a and first leg feed hole 368a.
  • the second oscillator slot 370b is aligned with and fluidically connected to the second arm feed hole 366b and the second leg feed hole 368b.
  • the first oscillator slot 370a is configured to receive the first fluid Fl from the first leg feed hole 368a and discharge the first fluid Fl through the first arm feed hole 366a.
  • the second oscillator slot 370b is configured to receive the first fluid Fl from the second leg feed hole 368b and discharge the first fluid Fl through the second arm feed hole 366b.
  • the first fluid Fl may be received in the first portion
  • the body feed hole 356 is configured to receive the first fluid Fl from the first portion 346 of the first conduit 330.
  • the number of body feed holes 356 may vary and is not limited to this example.
  • the number of body feed holes 356 may correspond to the number of application conduits 336 and the number of strands of material 12 that may be accommodated by the nozzle assembly 222.
  • additional arm feed hole pairs 366a, 366b and leg feed hole pairs 368a, 368b, along with additional oscillator slot pairs 370a, 370b may be provided at the oscillator conduit 334 to correspond to additional flow-splitting sections 342.
  • the head 360 of the flow-splitting section 342 is in fluid communication with the body hole 356 and is configured to receive the first fluid Fl from the body feed hole 356.
  • the first fluid Fl may flow from the head 360 to the first and second legs 364a, 364b.
  • the first and second branches 374a, 374b of the application conduit 336 are configured to receive the first fluid Fl from the respective first and second legs 364a, 364b of the flow-splitting section 342.
  • the first conduit 330 may include three flow-splitting sections 342. It is understood, however, that this example is non-limiting, and that the number of flow-splitting sections 342 may vary.
  • the number of flow-splitting sections 342 may correspond to the number of body feed holes 356, such that each body feed hole 356 is in fluid communication with a head 360 of a respective flow-splitting section 342.
  • a turbulent flow of the first fluid Fl in the first conduit 330 may be received at the first and second legs 364a, 364b from the head 360 at the flow-splitting section 342 at different pressures.
  • at least a portion of the fluid at the higher pressure flows into the oscillator conduit 334, while fluid at the lower pressure flows to a corresponding first branch 374a or to a second branch 374b of the application conduit 336.
  • the first fluid Fl may be initially received in the first leg
  • the first fluid Fl received in the first leg 364a at a higher pressure, and in the second leg 364b at a lower pressure relative to the first leg 364a.
  • the first fluid Fl received in the first leg 364a, at the higher pressure may be at least partially discharged to the first leg feed hole 368a of the oscillator conduit 334 and then into the first oscillator slot 370a.
  • the first fluid Fl may then flow through the first oscillator slot 370a and be discharged through the first arm feed hole 366a of the oscillator conduit 334.
  • This portion of first fluid Fl may then be received in the first arm 362a of the flow-splitting section 342.
  • Another portion of the higher pressure first fluid Fl initially received in the first leg 364a is discharged to the first branch 374a of the application conduit 336.
  • the first fluid Fl initially received in the second leg 364b at the lower pressure, may be discharged from the second leg 364b and received in the second branch 374b of the application conduit 336.
  • the first and second legs 364a, 364b alternate between receiving the first fluid Fl at a higher pressure and a lower pressure by way of the oscillator conduit 334.
  • first fluid Fl may be discharged to the second leg feed hole 368b of the oscillator conduit 334 and then into the second oscillator slot 370b.
  • the first fluid Fl may then flow through the second oscillator slot 370b and be discharged through the second arm feed hole 366b of the oscillator conduit 334.
  • This portion of first fluid Fl may then be received in the second arm 362b of the flow-splitting section 342.
  • Another portion of the higher pressure first fluid Fl received in the second leg 364b is discharged to the second branch 374b of the application conduit 336.
  • the first fluid Fl in the first leg 364a now at the lower pressure, may be discharged from the first leg 364a to the first branch 374a of the application conduit 336.
  • the nozzle assembly 222 may include a depending guide section 232 having guide slots 234 similar to the guide slots 34 described in the embodiments above.
  • the nozzle assembly 222 may include three guide slots 234, each configured to receive a strand of material 12.
  • Each guide slot 234 may include an open end 236 and a closed end 238.
  • the closed end 238 may act as a stop to position the strand 12 relative to the orifice 28.
  • the open end 236 of each guide slot 234 may include a portion shaped generally as an inverted "v" to assist in guiding the strand 12 into the guide slot 234.
  • the first plate 322a may include the first portion 346 of the first conduit 330, securing openings 76 and fastening holes 80.
  • each guide slot 234 may be formed by, for example, a first guide slot segment 234a, a second guide slot segment 234b (FIG. 7B) and a third guide slot segment 234c (FIG. 7C) formed in adjacent plates and aligned so as to receive the strand of material.
  • the first guide slot segments 234a may be formed in the first plate 322a.
  • the second plate 322b may include body feed holes
  • the second plate 322b may also include second guide slot segments 34b and orifices 28.
  • the third plate 322c may include flow-splitting sections 342, third guide slot segments 34c, securing openings 76 and fastening holes 80.
  • the orifices 28 may be defined in the second plate 322b between the first plate 322a and third plate 322c.
  • the depending guide section 232 may be formed on the first plate 322a, second plate 322b and third plate 322c.
  • the aligned first, second and third guide slot segments 234a-c my form a single guide slot 234, and three guide slots 234 may be formed across a width of the nozzle assembly 222.
  • the third plate 322c may include three flow-splitting sections 342. However, it is understood that the number of guide slots 234 and flow-splitting sections is not limited thereto.
  • the fourth plate 322d may include the first and second arm feed holes 366a, 366b and the first and second leg feed holes 368a, 368b of the oscillator conduit 334.
  • the fourth plate 322d may also include securing openings 76 and fastening holes 80.
  • the fourth plate 322d may include three pairs of first and second arm feed holes 366a, 366b, and three pairs of first and second leg feed holes 368a, 368b.
  • the present disclosure is not limited thereto.
  • the fifth plate 322e may include first and second oscillator slots 370a, 370b of the oscillator conduit 334.
  • the fifth plate 322e may include securing openings 76 and fastening holes 80.
  • the fifth plate 322e may include three pairs of first and second oscillator slots 370a, 370b, but the present disclosure is not limited thereto.
  • the sixth plate 322f may include securing openings 76 and fastening holes 80.
  • the sixth plate 322f may seal the oscillator conduit 334 at the first and second oscillator slots 370a, 370b.
  • the nozzle assembly 422 includes a first conduit 430 configured to receive the first fluid Fl and allow for flow of the first fluid Fl within the nozzle assembly 422, a second conduit 432 configured to receive the second fluid F2 and allow for flow of the second fluid F2 within the nozzle assembly 422, and an application conduit 436 fluidically connected to the first conduit 430 and the second conduit 432 such that the application conduit 436 is configured to receive the first fluid Fl and the second fluid F2.
  • the first conduit 430 includes a first inlet 438 configured to receive the first fluid Fl from the first fluid supply module 18.
  • the first conduit 430 also includes a flow- distributing channel 431.
  • the flow-distributing channel 431 is configured to receive the first fluid Fl from the first conduit and distribute the first fluid Fl in a lateral direction relative to the first inlet 438 within the nozzle assembly 422, i.e., across a width direction of the nozzle assembly 422.
  • the flow-distributing channel 43 l is shaped so as to have a component extending laterally outward relative to the first inlet 438.
  • the flow-distributing channel 431 may be substantially triangular in shape.
  • the flow-distributing channel 431 may also include an internally disposed flow control finger 433 configured to direct the first fluid Fl toward an outer periphery within the flow- distributing channel 431.
  • the second conduit 432 includes a second inlet 440 configured to receive the second fluid F2 from the second fluid supply module 20.
  • the second conduit 432 includes one or more flow splitting sections 442 where the second conduit 432 is split into a plurality of discrete flow paths for the second fluid F2 to deliver the second fluid F2 to the one or more application conduits 436.
  • each flow splitting section 442 may include first and second branch feed holes 444a, 444b disposed in fluid communication with the application conduit 436.
  • Each flow spitting section 442 may correspond to a respective application conduit 436.
  • the second conduit 432 includes a first portion 446, a second portion 448 and a reservoir or intermediate portion 450 spacing apart and fluidically connecting the first portion 446 and the second portion 448.
  • the first portion 446 extends between the second inlet 440 and the intermediate portion 450 and the second portion 448 extends between the intermediate portion 450 and the one or more application conduits 436.
  • the intermediate portion 450 may include one or more pairs of first and second feed slots 444c, 444d.
  • first and second branch feed holes 444a, 444b are disposed in direct fluid communication with the application conduit 436, and the first second feed slots 444c, 444d are disposed upstream from, and in fluid communication with the first and second branch feed holes 444a, 444b, respectively. It is understood that although the first and second branch feed holes 444a, 444b and the first and second feed slots 444c, 444d are described and shown as pairs, that the number of feed branch feed holes and slots may vary depending on a desired amount of discrete flow paths extending to each application conduit 436.
  • the second portion 448 extends between the intermediate portion 450 and the application conduit 436.
  • the first portion 446 and second portion 448 are configured to direct the second fluid F2 in directions that are generally opposite to one another.
  • the intermediate portion 450 extends generally perpendicularly between the first portion 446 and the second portion 448, but is not limited to this configuration.
  • the flow splitting section or sections 442 may be formed in the second portion 448 of the second conduit 432.
  • the application conduit 436 includes a first fluid receiving section 472 configured to receive the first fluid Fl from the first conduit 430, a first branch 474a and a second branch 474b configured to receive the second fluid F2 from the second conduit 432, and in one embodiment from respective first and second feed holes 444a, 444b, and an orifice 428 for discharging the first fluid Fl .
  • the first fluid in one embodiment, the first fluid
  • the second fluid F2 may be received in the second conduit 432 at the second inlet 440.
  • the second fluid F2 may flow in the first portion 446 of the second conduit 432 into the intermediate portion 450.
  • the second fluid may also flow into the first and second feed slots 444c, 444d. Subsequently, the second fluid may be directed to the second portion 448 of the second conduit 432 and into the one or more flow splitting sections 442. In one embodiment, the second fluid F2 is directed into the first and second branch feed holes 444a, 444b of each flow splitting section 442. The second fluid F2 may then flow into the second portion 448 of the second conduit 432. Referring to FIGS. 8 and 9B, the first branch 474a and the second branch 474b of the application conduit 436 may receive the second fluid F2 from the flow splitting section 442.
  • the first fluid Fl may be directed through and out of the orifice 428 from the first fluid receiving section 472, while the second fluid is directed through and out of the orifice 428 from the first and second branches 474a, b. That is, the first and second fluids Fl, F2 may be discharged from the orifice 428 simultaneously, substantially simultaneously or in an alternating pattern. Accordingly, the second fluid F2, fed into the orifice 428 at substantially opposing sides of the first fluid Fl, may cause the first fluid Fl to vacillate, oscillate, or be otherwise discharged from the orifice in 428 in a non-linear, irregular, and/or substantially nonrepeating pattern.
  • the first inlet 438 may be formed in the first plate 422a and the flow- distributing channel 431 may be formed in the second plate 422b.
  • the second conduit 432 may be formed in the first through fifth plates 422a-e, and the sixth plate 422f may be an end or face plate.
  • the first portion 446 of the second conduit 432 extends in the first through four plates 422a-d
  • the intermediate portion extends in the fifth plate 422e
  • the second portion 448 extends in the fourth plate 422d.
  • the second inlet 440 may be in the first plate 422a and the one or more flow splitting sections 442, including the first and second branch feed holes 444a, 444b may be in the fourth plate 422d.
  • the one or more application conduits 436 may be disposed in the third plate 422c.
  • a flow of the first fluid Fl may be more evenly distributed to the application conduits 436, compared to a nozzle where the first fluid inlet is aligned with one of a plurality of application conduits.
  • FIGS. 10A and 10B illustrate another embodiment of the nozzle assembly
  • the first fluid Fl may be received in the flow-distributing channel 531 at the first and second arms 53 la, 53 lb, and flow to the base 53 lc, where the first fluid Fl may then be distributed and flow to the application conduits 536.
  • the first fluid Fl may be received in the respective first fluid receiving sections of 572 of the application conduits 536.
  • FIGS. 11 A and 1 IB are enlarged views of the fourth plate 422d and fifth plate 422e, respectively, of the nozzle assembly 422 shown in FIG. 8.
  • the fourth plate 422d may include the first portion 446 of the second conduit 432 and the second portion 448 of the second conduit 432.
  • the second portion 448 includes one or more flow splitting sections 442, and each flow splitting section 442 may include first and second branch feed holes 444a, 444b.
  • the fifth plate 422e include the intermediate portion 450 of the second conduit 432.
  • the intermediate portion 450 may include feed slots disposed in fluid communication the branch feed holes of the one or more flow splitting sections 442.
  • the intermediate portion 450 may include first and second feed slots 444c, 444d configured to be aligned and disposed in fluid communication with the first and second branch feed holes 444a, 444b, respectively.
  • the second fluid F2 may flow in the nozzle assembly 422 through the first portion 446 of the second conduit 432, to the intermediate portion 450 and the feed slots 444c, 444d, and then to the first and second branch feed holes 444a, 444b of the second portion 448, before being delivered to the first and second branches 474a, 474b and the application conduit 436.
  • the first fluid Fl may be received in the first conduit
  • the nozzle assembly 622 may also include one or more guide slots 634 for guiding a strand relative to the orifice 628.
  • the nozzle assembly 622 may be formed by a plurality of plates secured together in the manner described above.
  • the nozzle assembly 622 may include a first plate 622a, a second plate 622b, a third plate 622c and a fourth plate 622d. It is understood, however, that nozzle assembly 622 is not limited to only these first through fourth plates 622a-d.
  • the first inlet 638 may be formed in the first plate 622a
  • the flow-distributing channel 631 may be formed in the second plate 622b
  • the one or more application conduits 636 and corresponding orifices 628 may be formed in the third plate 622c.
  • the fourth plate 622d may serve as a backing plate or face plate.
  • a second conduit 632 may also be formed in the nozzle assembly 622.
  • the fourth plate 622d, or backing plate is configured to block the flow of a second fluid F2 in the second conduit, such that only the first fluid Fl may be discharged.
  • FIGS. 13A, 13B, 14A, 14B, 15A and 15B show alternative embodiments of the first conduit, and in particular, the flow-distributing channel, which may be used in the nozzle assembly 422 of FIG. 8.
  • the plates shown in the embodiments of FIGS. 13-15 may replace the second and third plates 422b, 422c of the nozzle assembly 422 shown in FIG. 8.
  • the flow-distributing channel 731 may be formed in a second plate 722b.
  • the flow-distributing channel 731 may include an inlet section 731c configured to receive the first fluid from the first inlet 438 (see FIG. 8).
  • the flow-distributing channel 731 may also include a first arm 73 la and a second arm 73 lb extending from the inlet section 73 lc.
  • each arm 731a, 731b may be angled downwardly relative to a horizontal such that the first and second arms 73 la, 73 lb are arranged at a non 180 degree angle relative to one another.
  • Each arm 73 la, 73 lb may be disposed in fluid communication with a respective application conduit 736, formed on the third plate 722c. Accordingly, The first fluid Fl may be received in the first inlet 438, flow into the inlet section 73 lc, the first arm 731 and the second arm 73 lb. The first fluid Fl may then flow to respective application conduits 736.
  • the inlet 838 may extend from the first plate 422a, through the second plate 822b to the flow reversal and divider section 835 in the third plate 822c.
  • the flow reversal and divider section 835 is configured to receive the first fluid Fl .
  • the flow of the first fluid Fl is reversed by way interacting with the adjacent fourth plate 422d (see FIG. 8), which functions, in part, as a backing plate.
  • the reversed flow of the first fluid Fl is divided between a first leg 835a and a second leg 835b.
  • the first and second legs 835a, 835b are disposed in fluid communication at or near respective ends 83 la, 83 lb of the flow-distributing channel 831 in the second plate 822b. Accordingly, the first fluid Fl may be received in the flow-distributing channel 831 and flow toward a center of the channel 831. The first fluid Fl may then flow back toward the third plate 822c (with the first plate 422a acting as a backing plate to the channel 831) to the one or more application conduits 836 in the third plate 822c.
  • the first and second legs 935a, 935b are disposed in fluid communication at or near respective ends 93 la, 93 lb of the flow-distributing channel 931 in the second plate 922b. Accordingly, the first fluid Fl may be received in the flow-distributing channel 931 and flow toward a center of the channel 931. The first fluid Fl may then flow back toward the third plate 922c (with the first plate 422a acting as a backing plate to the channel 931) to the one or more application conduits 936 in the third plate 922c.
  • the first fluid Fl may be directly, i.e., contactingly, applied on a strand or strands 12 in a non-linear pattern. Accordingly, the fluid application device 10 may be operated at increased line speeds when compared to non-contact nozzle configurations, while still providing a benefits of a non-linear application pattern detailed above.

Landscapes

  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Nozzles (AREA)

Abstract

L'invention concerne un dispositif d'application de fluide (10) comprenant une tête d'applicateur (16) et un ensemble buse (22) accouplé fluidiquement à la tête d'applicateur. L'ensemble buse comprend un premier conduit (430) conçu pour recevoir un premier fluide depuis la tête d'applicateur, le premier conduit présentant une première entrée conçue pour recevoir le premier fluide et un canal de distribution de flux (431) en aval de l'entrée de fluide et en communication fluidique avec celle-ci, le canal de distribution de flux étant conçu pour diriger le premier fluide dans une direction latérale. L'ensemble buse comprend en outre un conduit d'application (436) présentant une première section de réception de fluide conçue pour recevoir le premier fluide depuis le canal de distribution de flux et un orifice (428) relié fluidiquement au conduit d'application, l'orifice étant conçu pour déverser le premier fluide à appliquer sur un brin de matériau.
PCT/US2018/057960 2017-11-01 2018-10-29 Dispositif d'application de fluide présentant une buse de contact modulaire à oscillateur fluidique WO2019089436A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2020524098A JP7391838B2 (ja) 2017-11-01 2018-10-29 流体振動構造を有するモジュール式接触ノズルを備える流体塗布装置
BR112020008739-4A BR112020008739B1 (pt) 2017-11-01 2018-10-29 Dispositivo de aplicação de fluido e conjunto de bocal para um dispositivo de aplicação de fluido
MX2020007143A MX2020007143A (es) 2017-11-01 2018-10-29 Dispositivo de aplicacion de fluidos que tiene una boquilla de contacto modular con un oscilador fluidico.
CN201880081870.2A CN111491740B (zh) 2017-11-01 2018-10-29 具有带有射流振荡器的模块化接触式喷嘴的流体施加装置
EP18804774.0A EP3703864B1 (fr) 2017-11-01 2018-10-29 Dispositif d'application de fluide présentant une buse de contact modulaire à oscillateur fluidique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/800,878 2017-11-01
US15/800,878 US10737287B2 (en) 2014-01-21 2017-11-01 Fluid application device having a modular contact nozzle with a fluidic oscillator

Publications (1)

Publication Number Publication Date
WO2019089436A1 true WO2019089436A1 (fr) 2019-05-09

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Country Link
EP (1) EP3703864B1 (fr)
JP (1) JP7391838B2 (fr)
CN (1) CN111491740B (fr)
BR (1) BR112020008739B1 (fr)
MX (1) MX2020007143A (fr)
WO (1) WO2019089436A1 (fr)

Citations (3)

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US4680595A (en) * 1985-11-06 1987-07-14 Pitney Bowes Inc. Impulse ink jet print head and method of making same
DE4010262A1 (de) * 1990-03-30 1991-10-02 Debatin Anton Gmbh Duese fuer viskose fluessigkeit
WO2015112265A1 (fr) * 2014-01-21 2015-07-30 Illinois Tool Works Inc. Dispositif d'application de fluide à buse de contact modulaire à oscillateur fluidique

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ATE491491T1 (de) * 2004-06-09 2011-01-15 Microflow Eng Sa Verbessertes modulares flüssigkeitssprühsystem
DE102008041423B4 (de) * 2008-08-21 2015-04-16 Fmp Technology Gmbh Fluid Measurements & Projects Beschichtungswerkzeug zum Auftragen eines Flüssigkeitsfilms auf ein Substrat
US20140261967A1 (en) * 2013-03-13 2014-09-18 Nordson Corporation Method of manufacturing a personal hygiene product
US9718083B2 (en) * 2013-11-14 2017-08-01 Illinois Tool Works Inc. Fluid application device having a modular nozzle assembly for applying fluid to an article
JP6877877B2 (ja) * 2016-01-26 2021-05-26 ノードソン コーポレーションＮｏｒｄｓｏｎ Ｃｏｒｐｏｒａｔｉｏｎ ノズル

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680595A (en) * 1985-11-06 1987-07-14 Pitney Bowes Inc. Impulse ink jet print head and method of making same
DE4010262A1 (de) * 1990-03-30 1991-10-02 Debatin Anton Gmbh Duese fuer viskose fluessigkeit
WO2015112265A1 (fr) * 2014-01-21 2015-07-30 Illinois Tool Works Inc. Dispositif d'application de fluide à buse de contact modulaire à oscillateur fluidique

Also Published As

Publication number Publication date
EP3703864A1 (fr) 2020-09-09
BR112020008739A2 (pt) 2020-10-20
CN111491740B (zh) 2023-05-09
BR112020008739B1 (pt) 2023-01-31
JP2021501049A (ja) 2021-01-14
MX2020007143A (es) 2020-08-17
JP7391838B2 (ja) 2023-12-05
CN111491740A (zh) 2020-08-04
EP3703864B1 (fr) 2024-05-22

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