Tire Sound Absorber Mounting Feed Unit and Pressure Roller
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Solution Overview
Problem
Existing methods for mounting sound absorbers inside vehicle tires are labor-intensive and prone to positioning inaccuracies, leading to suboptimal connection strength and efficiency.
Innovation Solution
A method utilizing a feed unit with rotating movement and movable rollers to apply uniform contact pressure, incorporating a separating means to prevent pinching, and a pressure roller for continuous contact, ensuring high-speed and accurate installation of sound absorbers on the tire's adhesive layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If sound absorbers are mounted manually on the inside of the tire, then positioning can be adjusted, but the assembly effort is high and positioning accuracy is poor
Solution Approach 1:
The feed unit automatically feeds the sound absorber material onto the tire interior surface, eliminating the need for manual positioning and application. The system serves itself by mechanically delivering the adhesive-coated sound absorber material directly to the tire, thereby reducing assembly effort while maintaining consistent positioning accuracy through automated control mechanisms.
2Productivity
If a feed unit is used to mount sound absorbers, then installation speed increases, but the risk of pinching the inner material end increases
Solution Approach 1:
A separating means is introduced as an intermediary element between the overlapping material ends of the sound absorber. This separating means prevents the inner material end from being pinched during the feeding process by maintaining a gap or separation zone, thereby enabling high-speed installation while ensuring reliable operation without material damage.
3Strength
If uniform contact pressure is applied to the sound absorber, then connection strength increases, but the complexity of the feed unit increases
Solution Approach 1:
The feed unit incorporates a pressing means with multiple pressing elements that are distributed along the feeding direction. Each pressing element applies localized contact pressure to the sound absorber material, collectively achieving uniform pressure distribution across the entire adhesive area. This segmented approach ensures strong connection while keeping individual pressing elements simple in structure.
4Productivity
If the vehicle tire is guided in rotating movement during assembly, then mounting speed increases, but the positioning precision during connection may decrease
Solution Approach 1:
The sound absorber material is pre-coated with adhesive material before being fed onto the tire. This preliminary preparation ensures that when the tire rotates during the mounting process, the adhesive is already in optimal condition for bonding, maintaining positioning precision even during dynamic rotation. The pre-applied adhesive compensates for any positioning variations that may occur during rotational mounting.
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 quick, accurate, and strong connection of sound absorbers to the tire interior, preventing pinching and ensuring uniform pressure for enhanced mounting speed and connection strength, while accommodating different tire dimensions and positions.
Implementation Method 1
the sound absorber (2) is connected to the inner side (11) of the tire at a predetermined height position (15)
Implementation Method 2
the feed unit has a separating means which is arranged between the overlapping material ends of the sound absorber and prevents the inner material end of the sound absorber from being pinched
Data Source
Figure 1~4
Figure 5~6
AI summary
To provide a method for easily bonding the sound absorber to the inner surface of the vehicle tire, it is proposed to wind the sound absorber (2) spirally around the feed unit (1) and to arrange the material ends of the sound absorber overlapping, wherein the outer diameter of the wound sound absorber is smaller than the inner diameter (7) of the tire bead of the vehicle tire (9), furthermore to arrange the vehicle tire (9) coaxially to the feed unit (1) with the wound sound absorber (2), wherein one of the sidewalls (12) of the vehicle tire is held by a retaining means (13) and to connect the sound absorber to the inner surface (11) of the vehicle tire (9), wherein the sound absorber is pressed firmly against a previously applied, adhesive material layer (10) on the inner surface (11) of the tire by means of a pressing process.