Bleeder Cord Affixing Roller for Continuous Tire Manufacturing

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Solution Overview

Problem

The existing methods for affixing bleeder cords to tire treatment members in the manufacturing process require stopping the continuous operation of the treatment member feeding line, leading to reduced productivity and safety concerns during the cutting of trailing ends.

Innovation Solution

A bleeder cord affixing device with an affixing roller mechanism that allows continuous attachment of bleeder cords to the treatment member without stopping the feeding line, combined with a cutting device using clamping plates and a resilient member to safely cut trailing ends while the line is operational.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the treatment member feeding line is stopped to affix bleeder cords manually, then the operator can safely attach the bleeder cords, but the productivity is reduced due to interruption of continuous operation

Engineering Contradiction:
Improvesafety of manual operationVSAvoidoperational efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The affixing roller is made movable between a standby position (away from the treatment member) and a pressed position (contacting the treatment member). This dynamic positioning allows the system to switch between safe attachment mode and continuous operation mode, eliminating the need to stop the feeding line while ensuring operator safety during bleeder cord attachment

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The affixing roller utilizes the friction from the moving treatment member to rotate and automatically press the bleeder cords onto the treatment member surface. The continuous movement of the treatment member itself provides the driving force for the affixing process, enabling continuous operation without stopping the feeding line

Inventive Principle:
Principle #25Self-service

2Productivity

If the operator manually cuts the trailing ends of bleeder cords while the feeding line is in continuous operation, then productivity is maintained, but sufficient safety is not ensured for the operator

Engineering Contradiction:
Improvecontinuous operation efficiencyVSAvoidoperator safety
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The cutting function is extracted as a separate, automated operation performed by a cutting device positioned downstream. The cutting action is removed from manual operator intervention and integrated into the automated process flow, allowing continuous operation while eliminating safety risks to the operator

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

A cutting device acts as an intermediary between the bleeder cord affixing process and the treatment member output. This automated cutting mechanism safely severs the trailing ends of the bleeder cords without requiring the operator to be in the path of the continuously moving treatment member

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables safe and efficient continuous affixing of bleeder cords to the treatment member without stopping the feeding line, improving productivity and ensuring safety during the cutting process.

Implementation Method 1

the affixing roller being rotated due to friction with the treatment member being fed

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS10518494B2Bleeder cord affixing device and method
Publication Date: 2019.12.31 BRIDGESTONE CORP
  • US10518494B2 patent drawing
  • US10518494B2 patent drawing
  • US10518494B2 patent drawing

AI summary

A bleeder cord affixing device is made up of an affixing roller extending in a width direction of the treatment member and adapted to be pressed into the treatment member being moved, thereby to be rotated; and a roller moving mechanism that moves the affixing roller to and away from the treatment member. The roller moving mechanism operates to move the affixing roller to a pressed position urged to the treatment member, with a result that the affixing roller is caused to be rotated due to the movement of the treatment member at the pressed position and attaches the rubber member to the treatment member under the pressing force, and then presses the bleeder cords onto the treatment member to continuously affix the bleeder cords onto the surface of the treatment member.