Metering Feeder for Rubber Kneading and Extrusion
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Solution Overview
Problem
Existing methods for kneading and extruding high-viscosity rubber materials face challenges in achieving consistent quality due to surging issues, leading to variable output and unevenness in product quality.
Innovation Solution
A metering feeder system that includes a crusher to preprocess the rubber material into coarse particles, an extruder for conveying and extruding the material, and a gear pump for accurate metering, which ensures consistent quality by kneading and extruding the material in a compressed state with optional additives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a common kneading extruder is used to process high-viscosity rubber material, then the extrusion process can be performed, but surging occurs causing variable output and uneven quality
Solution Approach 1:
The patent applies preliminary action by introducing a crusher before the extruder to pre-process the rubber material into uniform granules. This pre-crushing action ensures consistent material feed and prevents surging during extrusion, thereby improving quality consistency and eliminating the harmful surging effect.
2Manufacturing precision
If bale rubber is supplied directly to a continuous extruder, then the process is simple, but the material cannot be accurately quantified and kneaded uniformly
Solution Approach 1:
The patent applies preliminary action by adding a crusher and feeder system before the continuous extruder. The crusher pre-processes bale rubber into uniform granules, and the feeder ensures accurate metering. This preliminary preparation enables accurate quantification and uniform kneading, significantly improving manufacturing precision despite the increased device complexity.
Solution Approach 2:
The patent introduces an intermediary crusher between the material supply and the continuous extruder. This intermediary device converts irregular bale rubber into uniform granules, serving as a mediator that enables accurate metering and uniform processing in the subsequent extruder, thereby achieving high manufacturing precision.
3Stability of the object's composition
If pressure is applied at the head of the extruder to maintain continuous supply, then stability is improved, but the pressure control complexity increases and does not sufficiently prevent surging
Solution Approach 1:
The patent applies preliminary action by crushing the rubber material into uniform granules before extrusion. This pre-processing ensures consistent material flow characteristics, which stabilizes the supply to the extruder without requiring complex pressure control systems. The uniform granule size prevents surging at the extruder head, achieving supply stability with simpler control.
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
The system significantly reduces product variations and enhances the quality of the rubber material by ensuring accurate metering and uniform kneading, resulting in consistently high-quality rubber products.
Implementation Method 1
a crusher for crushing the material into coarse particles
Implementation Method 2
an extruder for conveying and extruding the material crushed by the crusher
Implementation Method 3
a gear pump for receiving and discharging the material extruded from the extruder
Data Source
AI summary
A system for kneading and extruding a material includes a crusher for crushing the material into coarse particles, an extruder for conveying and extruding the material crushed by the crusher, a gear pump for receiving and discharging the material extruded from the extruder, and a kneading and extruding apparatus for kneading the material discharged from the gear pump and continuously extruding the kneaded material. Therefore, a material is accurately quantified and highly uniform, resulting in reduced product variations and ensured consistent quality.