Rubber-coating device for steel wire

Patent metadata

Field	Value
Publication number	US-10464248-B2
Application number	US-201415329723-A
Country	US
Kind code	B2
Filing date	Aug 4, 2014
Priority date	Aug 4, 2014
Publication date	Nov 5, 2019
Grant date	Nov 5, 2019

Abstract

A rubber-coating device for a steel wire is provided with: a heating device for heating water to a specified temperature range; heat transfer rollers, which contact the steel wire and inside which a water passage is formed; and an extruder for coating rubber on the steel wire that is heated by the heat transfer rollers.

First claim

The invention claimed is:

1. A rubber coating device for a steel wire, the rubber coating device comprising:
a heating device that heats a heat medium to a predetermined temperature range;
a heat transfer roller that is in contact with a steel wire, wherein the heat transfer roller includes a space for the heat medium; and
an extrusion machine that coats the steel wire heated by the heat transfer roller with rubber, wherein
the heat medium is water,
the predetermined temperature range includes a boiling point of the heat medium,
the heat transfer roller includes an outer circumferential surface including a groove around which the steel wire is wound,
the heat transfer roller includes a rotation shaft, and
a supply passage that supplies the heat medium to the space for the heat medium in the heat transfer roller and a discharge passage that discharges the heat medium out of the space for the heat medium are included inside the rotation shaft.

2. The rubber coating device according to claim 1 , wherein the supply passage is located at an inner side of the discharge passage inside the rotation shaft.

3. The rubber coating device according to claim 2 , wherein
the heat transfer roller includes a circular partition plate concentric to the heat transfer roller in the space for the heat medium,
the partition plate partitions the space for the heat medium into a first heating chamber connected to the supply passage and a second heat chamber connected to the discharge passage, and
an outer circumferential portion of the first heating chamber is in communication with an outer circumferential portion of the second heating chamber.

4. The rubber coating device according to claim 1 , wherein
the heat transfer roller includes a first heat transfer roller and a second heat transfer roller, and
the steel wire is wound around the first heat transfer roller and the second heat transfer roller a number of times.

Assignees

• Fuji Seiko Co Ltd
• Fuji Shoji Co Ltd

Inventors

• Nomura Shigeaki

Classifications

• B29C48/154 Primary

  Coating solid articles, i.e. non-hollow articles · CPC title

• B29D2030/483

  Treating the bead cores to increase rubber adhesion · CPC title

• B29K2021/00

  Use of unspecified rubbers as moulding material · CPC title

• B29C48/79

  of preformed parts or layers · CPC title

• B29D30/06

  Pneumatic tyres or parts thereof {(e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)} · CPC title