Modular Extrusion Head for Simultaneous Rubber Strip Production
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Solution Overview
Problem
Existing systems for producing band-like material strips are limited in variability and efficiency, requiring separate production runs for different types of strips, leading to increased downtime and reduced capacity when switching between different materials or structures.
Innovation Solution
The system incorporates a modular spray head and adjustable cooling sections with driven and freely rotatable rollers, allowing for the simultaneous production of multiple types of band-like material strips with varying reinforcement materials and constructions, enabling flexible and efficient production of different strip types on the same system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed production line is used for material strips, then production stability is maintained, but adaptability to different strip types decreases
Solution Approach 1:
The production line is divided into modular segments: spool creel with interchangeable spools, extrusion head with adjustable components, cooling device with independent sections, and winding station with multiple positions. Each module can be independently configured or replaced to produce different strip types without redesigning the entire system.
Solution Approach 2:
The system is designed as a universal production line capable of manufacturing multiple types of band-like material strips with different reinforcements (metal, glass, organic), different rubber compounds, and varying dimensions. The same basic equipment handles diverse products through parameter adjustments rather than requiring dedicated lines for each strip type.
2Productivity
If separate production runs are used for different strip types, then production precision is maintained, but productivity decreases
Solution Approach 1:
The system employs dynamic adjustability in key parameters: spool rotation speeds can be individually controlled, extrusion head positions and temperatures are variable, cooling section parameters are adjustable, and winding speeds can be modified. This dynamic capability allows rapid reconfiguration between different strip types while maintaining precise control over production parameters for each specific product.
3Reliability
If batch production is used for different strip types, then quality control is improved, but loss of time increases
Solution Approach 1:
The system prepares for quick changeovers by having spools with different reinforcements pre-loaded on the creel, and by maintaining readily available rubber compounds in the extrusion system. Cooling sections are pre-configured for different strip types, and the winding station is prepared with appropriate settings in advance, minimizing the time required to switch between production batches.
4Manufacturing precision
If a simple cooling device is used, then device complexity is reduced, but manufacturing precision decreases
Solution Approach 1:
The cooling device is divided into multiple independent cooling sections, each capable of being individually controlled and optimized for specific strip types. This segmented approach provides precise cooling control without requiring an overly complex monolithic cooling system, as each section can be independently adjusted based on the specific thermal requirements of the material being processed.
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
This approach enables the production of at least two different types of material strips simultaneously, reducing downtime and increasing system capacity by allowing for smaller batch sizes and flexible production of various tire components with improved manufacturing accuracy and speed.
Implementation Method 1
an extruder for plasticizing a rubber mixture
Implementation Method 2
a cooling device arranged downstream of the extrusion head, each with a cooling section for the respective identical material strips
Data Source
Figure 1
AI summary
Method and apparatus for producing a number of ribbon-like material strips (2, 3) from textile reinforcing elements embedded in a rubber compound, the reinforcing elements running parallel to each other and in the longitudinal direction of the material strips. These elements are fed from a multitude of spools of a creel to a die head (1), pre-arranged in the die head (1), and embedded in a rubber compound plasticized in an extruder. After exiting the die head (1), the strips are guided through a cooling section (5, 6) of a cooling device (4) and subsequently wound up. At least two different types of material strips (2, 3) are produced in the die head (1) using the supplied reinforcing elements. The identical material strips (2, 3) of each type are guided together through separate cooling sections (5, 6) after exiting the die head (1).