Rapid changeover slot die assembly for a fluid application device

Patent metadata

Field	Value
Publication number	US-9724722-B2
Application number	US-201514732606-A
Country	US
Kind code	B2
Filing date	Jun 5, 2015
Priority date	Jun 10, 2014
Publication date	Aug 8, 2017
Grant date	Aug 8, 2017

Abstract

A fluid application device having an applicator head, a slot die assembly and a securing mechanism for securing the slot die assembly to the applicator head is provided. The slot die assembly includes a die extruder comprising one or more fluid input ports configured to receive a fluid from the applicator head, a shim positioned adjacent to the die extruder, and a plate positioned adjacent to the shim on a side of the shim opposite from the die extruder. The securing mechanism includes a securing component at one of the applicator head and the slot die assembly and a corresponding securing component at the other of the applicator head and slot die assembly.

First claim

What is claimed is:

1. A fluid application device comprising:
an applicator head;
a slot die assembly comprising:
a die extruder comprising one or more fluid input ports configured to receive a fluid from the applicator head;
a shim positioned adjacent to the die extruder; and
a plate positioned adjacent to the shim on a side of the shim opposite from the die extruder; and

a securing mechanism configured to secure the slot die assembly to the applicator head, the securing mechanism comprising a securing component at one of the applicator head and the slot die assembly, and a corresponding securing component at the other of the applicator head and slot die assembly,
wherein the securing component includes first and second spaced apart support surfaces on the applicator head configured to receive the slot die assembly therebetween, and the corresponding securing component includes first and second engaging surfaces formed on the slot die assembly configured to engage the respective first and second support surfaces.

2. The fluid application device of claim 1 , further comprising a positioning mechanism.

3. The fluid application device of claim 2 , wherein the positioning mechanism includes a spring loaded plunger.

4. The fluid application device of claim 3 , wherein the positioning mechanism further includes a bore configured to receive the plunger.

5. The fluid application device of claim 4 , wherein the spring loaded plunger is positioned on the securing component of the applicator head and the bore is positioned on the slot die assembly, such that the spring loaded plunger is urged into the bore when the slot die assembly is properly positioned relative to the securing component.

6. The fluid application device of claim 2 , wherein the positioning mechanism includes visual indicia formed on at least one of the applicator head, securing component, corresponding securing component and slot die assembly.

7. The fluid application device of claim 1 , wherein the second support surface is actuatable toward the second engaging surface for engagement therewith to affix the slot die assembly to the applicator head.

8. A fluid application device comprising:
an applicator head;
a slot die assembly comprising:
a die extruder comprising one or more fluid input ports configured to receive a fluid from the applicator head;
a shim positioned adjacent to the die extruder; and
a plate positioned adjacent to the shim on a side of the shim opposite from the die extruder; and

a securing mechanism configured to secure the slot die assembly to the applicator head, the securing mechanism comprising a securing component at one of the applicator head and the slot die assembly, and a corresponding securing component at the other of the applicator head and slot die assembly,
wherein the securing component includes first and second spaced apart dovetail blocks on the applicator head configured to receive the slot die assembly therebetween, and the corresponding securing component includes first and second engaging surfaces formed on the slot die assembly configured to engage the respective first and second dovetail blocks, wherein a fastener is received through at least one of the first dovetail block and second dovetail block to engage the corresponding engaging surface.

9. The fluid application device of claim 8 , wherein the first dovetail block includes a plurality of spaced apart first support surfaces, the second dovetail block includes a plurality of spaced apart second support surfaces, and the first and second engaging surfaces include a plurality of first and second engaging surfaces, respectively, wherein each first engaging surface engages a respective first support surface, and each second engaging surface engages a respective second support surface.

10. The fluid application device of claim 9 , wherein the second dovetail block includes a plurality of discrete, spaced apart second dovetail blocks, each second dovetail block having a second support surface formed thereon.

Assignees

• Illinois Tool Works

Inventors

• Lessley Mel Steven
• Cunningham Jonathan David
• Pahl Andreas

Classifications

• B29C48/00

  Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C49/04) · CPC title

• B29C48/2566

  Die parts · CPC title

• B29C48/30

  Extrusion nozzles or dies (extrusion characterised by the shape or cross-section of the extruded article B29C48/03) · CPC title

• B05C5/0254 Primary

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

• B29C48/305 Primary

  having a wide opening, e.g. for forming sheets · CPC title