Variable Roll Cage Machine for Compressible Materials
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Solution Overview
Problem
Current rolling machines for compressible materials, such as mattresses, often damage the materials due to uneven pressure distribution and excessive compression, leading to product degradation and inefficiencies in handling, storage, and shipping.
Innovation Solution
A variable roll cage machine with a roll chamber and multiple rollers, where two roll groups with movable rollers apply consistent pressure from the outside in, managing the material's diameter to minimize damage and achieve consistent compression, allowing for efficient rolling and expansion of high expansion force materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the material is rolled too tightly to reduce volume for storage and shipping, then the compression ratio increases and transport/storage costs decrease, but the rolling process damages the layers, cells, and fibers of the material
Solution Approach 1:
The roll cage machine employs dynamically adjustable rollers that can change their position and pressure application during the rolling process. The rollers are positioned to apply compression from the outside in, and their spacing can be adjusted to control the compression force, allowing the system to adapt to different material types and compression requirements without causing damage
Solution Approach 2:
The patent applies different compression forces to different regions of the material during rolling. By adjusting the spacing and position of individual rollers, the system creates localized compression zones that progressively compress the material from the outer layers inward, ensuring uniform compression without excessive force on any single area that would cause damage
2Productivity
If the rolling machine operates at high speed to match production line speeds, then productivity increases, but the consistent pressure distribution becomes difficult to maintain causing material damage
Solution Approach 1:
The roll cage machine maintains continuous rolling operation without interruption, with the material continuously fed through the rollers at high speed. The rollers are positioned and adjusted to maintain consistent pressure distribution throughout the entire rolling process, ensuring that compression is applied uniformly from the outside in while operating at production-line speeds
Solution Approach 2:
The system incorporates feedback mechanisms to monitor and adjust roller positioning and pressure application in real-time during high-speed operation. This allows the machine to maintain consistent compression forces despite varying material properties and operating conditions, preventing material damage while preserving productivity
3Length of stationary object
If the material is compressed to reduce thickness before rolling, then the maximum diameter of the packaged product decreases, but the compression process may cause premature product degradation
Solution Approach 1:
The roll cage machine performs preliminary compression of the material before final packaging by applying controlled external compression forces during the rolling process. This preliminary action reduces the material thickness and prepares it for compact packaging while the controlled environment and gradual compression minimize the risk of premature degradation
Solution Approach 2:
The system employs cushioning mechanisms that protect the material during compression by distributing forces evenly and preventing sudden or excessive compression shocks. The roller configuration and spacing are designed to cushion the compression process, reducing the likelihood of damage to delicate layers, cells, and fibers while achieving the desired thickness reduction
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 machine ensures consistent pressure distribution, reducing material damage and improving the efficiency of rolling and expansion, resulting in a more usable product post-unpacking with enhanced storage and shipping capabilities.
Implementation Method 1
compressing these materials into smaller volumes often results in significant cost savings
Implementation Method 2
Two of the rollers in each roll group have a longitudinal axis and the longitudinal axes of the two rollers in each roll group are fixed relative to each other
Implementation Method 3
apply consistent pressure from the outside in, managing the material's diameter to minimize damage and achieve consistent compression
Data Source
AI summary
A variable roll cage machine and process to roll up material, like high expansion force material. The machine includes a roll chamber to receive the material. The roll chamber has a longitudinal central axis and a plurality of rollers located around a circumference of the roll chamber. The plurality of rollers include two roll groups of at least two rollers in each roll group. At least one of the rollers in each roll group is movable toward the longitudinal central axis independent of at least one other roller in the roll group. A material infeed gap is in the circumference of the roll chamber located between the two roll groups and spaced from the at least one of the rollers in each roll group that is movable.