Single Roll Roller Die System for Tire Strip Application
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Solution Overview
Problem
Existing single-roll-roller-die systems struggle to efficiently apply very narrow and thin rubber compound strips, such as those used for strip-winding treads, at high speeds to cambered green tires with precise positioning and winding.
Innovation Solution
A second rotating roller is introduced to enclose a narrow gap with the first roller, allowing the rubber compound strip to be guided and applied to the tire, with the rollers arranged to cover half the circumference, enabling high-speed transfer and precise positioning through linear and rotational movement adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single-roll roller die system is used to produce profiled rubber strips, then high-quality rubber strips can be produced in different widths and thicknesses, but the system struggles to efficiently apply very narrow and thin strips at high speeds
Solution Approach 1:
The patent divides the single roller into two separate rollers (first roller and second roller) with different functions. The first roller produces the rubber strip while the second roller applies it to the tire. This segmentation allows each roller to be optimized for its specific function, enabling high-speed application of narrow and thin strips while maintaining production quality.
2Measurement precision
If the second roller has a width essentially corresponding to the narrow strip width, then precise positioning and high-speed transfer are enabled, but the device complexity increases
Solution Approach 1:
The second roller is designed with a width that essentially corresponds to the width of the narrow rubber strip, creating a localized contact area. This local quality match ensures precise positioning and accurate transfer of the strip to the tire, while the simplicity of the roller design itself keeps the overall device complexity manageable.
3Manufacturing precision
If the two rollers are arranged to cover half the circumference, then exact transfer and positioning are supported, but the device requires more movement adjustments
Solution Approach 1:
The patent incorporates movable mounting arrangements that allow both the first and second rollers to be adjusted in position. This dynamic capability enables the rollers to be positioned to cover approximately half the circumference of each roller, ensuring exact transfer and positioning of the rubber strip, while the adjustment mechanisms facilitate operational flexibility.
Data Source
Figure 1
Figure 2~4
AI summary
The invention relates to a device having a single roll roller die system for producing components made of elastomeric material of a vehicle tire by applying an unvulcanized rubber mixture strip (7) to a treated tire blank (8), having a template (4) that transfers the correspondingly profiled rubber mixture strips (7) to a first rotating roller (3). A second rotating roller (5) is provided, forming a gap with the first roller (3) through which the rubber mixture strips (7) are guided and comprising a width substantially corresponding to the width of the rubber mixture strip (7) or exceeding same only slightly, wherein the second roller (5) applies the rubber mixture strips (7) to the treated tire blank (8).