Apparatus for producing laminated fabric ply strips

Patent metadata

Field	Value
Publication number	US-2016176096-A1
Application number	US-201414575063-A
Country	US
Kind code	A1
Filing date	Dec 18, 2014
Priority date	Dec 18, 2014
Publication date	Jun 23, 2016
Grant date	—

Abstract

A cross-head die assembly for use with an extruder is described. The cross-head die assembly includes: an inlet section having an inlet for communicating flow from the extruder to one or more flow channels formed in a support block; and an outlet, a removably mounted die located at the outlet and in fluid communication with the one or more flow channels; said support block further comprising an interior slot extending from a first side of the support block to an outlet passageway; a removable cassette positioned in the interior slot, wherein the front end of the removable cassette is positioned to seal the outlet passageway of the slot so that the slot is isolated from the flow.

First claim

What is claimed is:

1 . A cross-head die assembly for use with an extruder, the cross-head die assembly comprising: an inlet section having an inlet for receiving flow; an upper support block removably connected to a first side of the interior section; and a lower block removably connected to a second side of the interior section; a first flow passage being located between the upper support block and the interior section and being in fluid communication with the inlet; a second flow passage being located between the interior section and the lower support block and being in fluid communication with the inlet; said cross-head die assembly further comprising a removably mounted profile die located at an outlet end of the assembly, said first and second flow passage being in fluid communication with an inlet of the die; said interior section further comprising an interior slot which extends from a first side of the assembly to the inlet of the die; and a removable cassette positioned in the interior slot.

2 . The cross-head die assembly of claim 1 wherein the upper support block has a removable flow insert plate.

3 . The cross-head die assembly of claim 1 wherein the lower support block has a removable flow insert plate.

4 . The cross-head die assembly of claim 1 wherein the first side of the interior section has a removable flow insert plate.

5 . The cross-head die assembly of claim 1 wherein the second side of the interior section has a removable flow insert plate.

6 . The cross-head die assembly of claim 1 wherein the cassette has a plurality of holes for receiving a ply cord.

7 . The cross-head die assembly of claim 6 wherein each hole has an alignment groove which extends though said hole.

8 . The cross-head die assembly of claim 1 wherein the slot has upper and lower sidewalls and lateral sidewalls.

9 . The cross-head die assembly of claim 1 wherein the slot has an outlet end, wherein a nose of the cassette seals the outlet of the slot from flow, so that the slot is isolated from the flow.

10 . The cross-head die assembly of claim 1 wherein the profile die has a removable insert.

11 . The cross-head die assembly of claim 10 wherein the removable insert has a lower surface forming a portion of the die outlet together with the die, wherein the removable insert has opposed corners, wherein each corner has a chamfer.

12 . The cross-head die assembly of claim 10 wherein the removable insert has a sealing edge positioned against the die outlet hole.

13 . A cross-head die assembly for use with an extruder, the cross-head die assembly comprising: an inlet section having an inlet for communicating flow from the extruder to one or more flow channels formed in a support block; and an outlet, a removably mounted profile die located at the outlet and in fluid communication with the one or more flow channels; said support block further comprising an interior slot extending from a first side of the support block to an outlet passageway; a removable cassette positioned in the interior slot, wherein the front end of the removable cassette is positioned to seal the outlet passageway of the slot so that the slot is isolated from the flow.

14 . The cross-head die assembly of claim 13 wherein the cassette has a plurality of holes, wherein each hole receives a ply cord.

15 . The cross-head die assembly of claim 14 wherein each hole has an alignment groove which extends though said hole.

16 . The cross-head die assembly of claim 13 wherein the slot has upper and lower sidewalls and lateral sidewalls.

17 . The cross-head die assembly of claim 13 wherein the profile die has a removable insert having a lower surface forming a portion of the die outlet together with the die, wherein the removable insert has opposed corners, wherein each corner has a chamfer.

18 . A cross-head die assembly for use with an extruder, the cross-head die assembly comprising: an inlet section having an inlet for communicating flow from the extruder to one or more flow channels formed in a support block; and an outlet, a removably mounted die located at the outlet and in fluid communication with the one or more flow channels; said support block further comprising an interior slot extending from a first side of the support block to an outlet passageway; a removable cassette positioned in the interior slot, wherein the front end of the removable cassette is positioned to seal the outlet passageway of the slot so that the slot is isolated from the flow.

19 . The cross head die assembly of claim 18 wherein said profile die has a removable insert having a lower surface forming a portion of the die outlet together with the profile die, wherein the removable insert has opposed corners, wherein each corner has a chamfer.

Assignees

• Goodyear Tire & Rubber

Inventors

• Dyrlund Christopher David
• Burg Gary Robert
• Chen Hongbing
• Hunt Nathan Andrew

Classifications

• B29C48/387

  using a screw extruder and a gear pump · CPC title

• B29C48/2886

  of fillers or of fibrous materials, e.g. short-fibre reinforcements · CPC title

• B29C48/298

  in a location other than through a barrel, e.g. through a screw · CPC title

• B29C48/307

  specially adapted for bringing together components, e.g. melts within the die · CPC title

• B29L2007/007

  Narrow strips, e.g. ribbons, tapes, bands (belts B29L2029/00; tapes as carrier of sound or information B29L2017/008) · CPC title