Inclinationally-Adjustable Winding Drum for Tire Component Splicing

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Solution Overview

Problem

In tire production, the uneven shrinkage of tire building components with varying cross-sectional profiles poses challenges for automatic winding and splicing, as existing solutions require complex stretching devices or manual corrections, hindering automation.

Innovation Solution

A method and device utilizing an inclinationally-adjustable surface on the winding drum, adjustable via a threaded connection and pivoting segments, allows for rotationally symmetrical winding and splicing of tire building components, compensating for material shrinkages by adjusting the angle of inclination to align free ends without stretching devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a stretching device is used to compensate for uneven material shrinkage, then manufacturing precision is improved, but device complexity increases

Engineering Contradiction:
Improveuniformity of material thickness after windingVSAvoidcomplexity of stretching device
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The winding drum surface is made dynamically adjustable through inclination angles, allowing the surface to adapt to material shrinkage characteristics. This dynamic adjustment replaces complex stretching mechanisms with a simple geometric parameter change, resolving the contradiction between precision and device complexity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention changes the geometric parameter of the winding drum surface (inclination angle) to compensate for material shrinkage. By adjusting the inclination angle, the effective winding circumference varies, compensating for uneven material thickness without requiring additional stretching devices.

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If manual splice correction is used to compensate for uneven material shrinkage, then manufacturing precision is improved, but extent of automation deteriorates

Engineering Contradiction:
Improvealignment accuracy of spliced endsVSAvoidautomation level of winding and splicing process
Core Design Contradiction:
Manufacturing precisionVSExtent of automation

Solution Approach 1:

The inclination adjustment is performed before the splicing operation, pre-compensating for material shrinkage. This preliminary action ensures that material ends align correctly during automated splicing, eliminating the need for manual correction and enabling full automation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention replaces manual mechanical correction with an automated inclination adjustment mechanism. The winding drum's adjustable surface automatically compensates for shrinkage, substituting manual operations with a controlled mechanical system that maintains precision while enabling automation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of manufacture

If the winding drum surface is made inclinationally-adjustable to compensate for material shrinkage, then ease of manufacture is improved, but device complexity increases

Engineering Contradiction:
Improvesimplicity of winding and splicing processVSAvoidcomplexity of inclinationally-adjustable surface
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The inclination adjustment is applied locally at the winding drum surface contact point, affecting only the specific area where material is wound. This localized adjustment achieves process simplification without requiring complex system-wide modifications, resolving the contradiction between ease of manufacture and device complexity.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS8002920B2Method for winding up and splicing a structural tire part having a material thickness that varies from the perspective of the cross-sectional profile thereof
Publication Date: 2011.08.23 CONTINENTAL REIFEN DEUTSCHLAND GMBH
  • US8002920B2 patent drawing
  • US8002920B2 patent drawing
  • US8002920B2 patent drawing

AI summary

A method for winding up and splicing a tire building component, comprising placing the tire building component on a winding drum having a winding drum main axis and an inclinationally-adjustable surface, which is adjustable in inclination relative to the winding drum main axis, rotating the winding drum to rotationally symmetrically wind up the tire building component, and splicing together free ends of the tire building component to form a closed ring.