Process for manufacturing a rubber strip for a tire, comprising water-cooling means

Patent metadata

Field	Value
Publication number	US-9446549-B2
Application number	US-201113697790-A
Country	US
Kind code	B2
Filing date	May 6, 2011
Priority date	May 11, 2010
Publication date	Sep 20, 2016
Grant date	Sep 20, 2016

Abstract

In the method of manufacturing a strip ( 8 ) of rubber for vehicle tires: a strip ( 8 ) of rubber is formed; the strip is cooled with water; residual water ( 40 ) on the surface of the strip is heated from the exterior of the strip and/or this water is replaced by hotter water; and the water present on the surface of the strip is eliminated.

First claim

The invention claimed is:

1. Method of manufacturing a strip of rubber for vehicle tires, comprising the steps of:
forming a strip of rubber including a vulcanization agent;
cooling said strip with water;
heating residual water on the surface of the strip from the exterior of the strip and/or replacing this water by hotter water; and
eliminating the water present on the surface of the strip.

2. The method according to claim 1 , wherein some of the cooling water is driven off at a distance from the strip after cooling and before the heating and/or replacement step.

3. The method according to claim 2 , wherein at least one of the driving off and elimination steps, is effected by blowing air onto the strip.

4. The method according to claim 2 ,
wherein the water elimination step is completed by causing evaporation of the traces of water still remaining on the surface of the strip; and
wherein all of the driving off and evaporation steps are effected by blowing air onto the strip.

5. The method according to claim 1 , wherein the strip is caused to circulate in a hot water bath during the heating and/or replacement step.

6. The method according to claim 5 , wherein the water from the bath has a temperature between 45 and 65° C.

7. The method according to claim 5 , wherein the water from the bath has a temperature between 50 and 60° C.

8. The method according to claim 1 , wherein hot water is sprayed onto the strip during the heating and/or replacement step.

9. The method according to claim 8 , wherein the water sprayed onto the strip has a temperature between 45 and 65° C.

10. The method according to claim 8 , wherein the water sprayed onto the strip has a temperature between 50 and 60° C.

11. The method according to claim 1 , wherein steam is sprayed onto the strip during the heating and/or replacement step.

12. The method according to claim 1 , wherein at least some of the water is driven off at a distance from the strip during the water elimination step.

13. The method according to claim 1 , wherein the water elimination step is completed by causing evaporation of the traces of water still remaining on the surface of the strip.

14. The method according to claim 1 , wherein deposits of mineral salts on the surface of the strip are reduced.

Assignees

• Dubois Vincent
• Ros François
• Michelin & Cie
• Michelin Rech Tech

Inventors

• Dubois Vincent
• Ros François

Classifications

• B29D30/52

  Unvulcanised treads, e.g. on used tyres; Retreading (apparatus for forming {treads by extrusion B29C48/00; apparatus for} vulcanising treads B29C35/02; apparatus characterised by the means for holding wheels or parts thereof B60B30/00) · CPC title

• B29C2035/1616

  using liquids · CPC title

• B29C47/8805

  Operations & Transport · mapped topic

• B29C35/00

  Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor (moulds with incorporated heating or cooling means B29C33/02 {; thermal after-treatment of shaped articles B29C71/02}; curing devices for plastics dental prostheses A61C13/14; before moulding B29B13/00) · CPC title

• B29C47/8815

  Operations & Transport · mapped topic