Closed-Loop Tread Strip Forming Unit for Scalable Retread Production
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Solution Overview
Problem
Traditional tire retread production facilities are inflexible and costly, making it difficult to establish or scale retread manufacturing in emerging markets or for testing purposes, as they require large initial investments and are not well-suited for smaller production scales.
Innovation Solution
A closed-loop tread strip forming unit that includes an extruder, handling assemblies, a curing press with articulable platens, and a return assembly, allowing for modular, scalable, and flexible production of tire tread strips, enabling continuous production and efficient use of resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional large-scale retread production facilities are established, then productivity and manufacturing capacity are improved, but device complexity and initial capital investment increase significantly
Solution Approach 1:
The patent divides the retread production process into separate modular units: a curing press for curing treads, a tread applicator for applying treads to carcasses, and a carcass preparation station. Each module can be independently operated and scaled, allowing businesses to start with smaller configurations and expand as needed, thus reducing initial complexity while maintaining productivity potential.
Solution Approach 2:
The system incorporates adjustable and reconfigurable components that can adapt to different production volumes and tread types. The modular architecture allows dynamic scaling of production capacity without requiring complete facility redesign, enabling businesses to optimize between productivity and complexity based on market demands.
2Productivity
If traditional large-scale retread production facilities are established, then productivity is improved, but loss of time for setup and lead time increase
Solution Approach 1:
The modular units are designed to be pre-configured and pre-assembled in a ready-to-operate state. The curing press, tread applicator, and other components come prepared with necessary tooling and settings, eliminating extensive setup time when the facility is commissioned or when scaling production. This preliminary preparation significantly reduces the lead time from facility establishment to full production capacity.
3Productivity
If traditional retread production facilities are established, then productivity is improved, but adaptability to different production scales decreases
Solution Approach 1:
By segmenting the production system into independent modular units, the patent enables businesses to operate at various production scales by activating only the necessary number of modules. A startup can begin with a single curing press and tread applicator, while established operations can add more modules to increase capacity, providing continuous adaptability to different production requirements.
Solution Approach 2:
The modular components are designed with universal interfaces and standardized configurations that allow them to perform multiple functions and accommodate different tread and carcass types. This universality enables the same basic module to adapt to various production scenarios, maintaining versatility across different production scales and product lines.
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
Facilitates efficient and flexible production of tire retread strips, reducing costs and enabling smaller-scale production setups, thus addressing the limitations of traditional retread facilities by allowing for continuous operation and efficient use of resources.
Implementation Method 1
a first tread strip extruder configured to extrude a first uncured tread strip
Implementation Method 2
a curing press having a pair of opposing platens, the pair of opposing platens displaceable between open and closed arrangements... configured to transfer the first tread strip mold member with the first cured tread strip
Implementation Method 3
a curing press having a pair of opposing platens, the pair of opposing platens displaceable between open and closed arrangements
Data Source
AI summary
Particular embodiments of the invention include a closed-loop tread strip forming unit (100) and methods for forming tread strips using a closed-loop unit. Embodiments of such forming units include a tread strip extruder (110) located at a pre-cure end of the closed-loop tread strip forming unit. Such units include an uncured tread strip handling assembly (120) configured to transport the first uncured tread strip from the first tread strip extruder and to a first tread strip mold member (130). The unit further includes a curing press (150) having an inlet and an outlet, a pre-cure mold handling assembly (140) configured to insert the loaded tread strip mold member into the curing press, a post-cure mold handling assembly (160) configured to receive the loaded tread strip mold member from the outlet of the curing press, a return assembly (170) configured to transfer the first tread strip mold member to the pre-cure end to complete a closed-loop.