Printing Roller Adapter With Cured Filler Bridge for Stable Torque Transfer
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Solution Overview
Problem
Existing solutions for roller bodies and printing rollers lack efficient and cost-effective methods for arranging and retaining an inner cylindrical body within an outer cylindrical body, compromising material usage and production efficiency.
Innovation Solution
A device comprising an outer hollow body with a cylindrical shape and an inner cylindrical body, where a centring device with spacers positions the inner body centrally, and a material bridge formed by a cured filler material creates a dimensionally stable connection between the two bodies, enhancing mechanical stability and allowing for efficient torque transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If radial spacers with ring-shaped grooves are used to maintain distance between inner and outer layers, then the structural stability is improved, but the manufacturing complexity and material usage increase due to the need for grooves and adhesive bonding
Solution Approach 1:
The invention extracts and eliminates the ring-shaped groove feature from the spacer design. By removing this additional structural element, the manufacturing process is simplified while the spacer continues to perform its primary function of maintaining radial distance between the inner and outer layers through its basic cylindrical geometry
Solution Approach 2:
The invention employs simple, easily manufacturable spacers without complex features like grooves. These simplified spacers can be produced more cheaply and quickly, aligning with the principle of using simpler, less durable-to-manufacture components that still fulfill their functional requirements effectively
2Strength
If dual-layer tube design with glued bushing is used, then the connection between inner and outer bodies is improved, but the material usage and production cost increase
Solution Approach 1:
The invention extracts and removes the additional bushing component and its associated adhesive bonding system. The spacer itself is designed to provide both the positioning function and the connection function, eliminating the need for separate bushings and adhesive materials
Solution Approach 2:
The spacer is designed to perform multiple functions simultaneously: it maintains the radial distance between layers, provides structural support, and creates the connection interface between the inner and outer bodies. This multi-functionality reduces the total material required compared to using separate components for each function
3Strength
If complete filling with polyurethane foam is used between outer and inner tubes, then the structural rigidity is improved, but the material cost and weight increase significantly
Solution Approach 1:
Instead of complete filling with heavy polyurethane foam, the invention applies local reinforcement only where needed. The spacers provide localized structural support and rigidity at critical positions, eliminating the need for extensive foam filling while maintaining necessary structural properties
Solution Approach 2:
The invention uses a composite structure combining the inner body, outer body, and strategically positioned spacers. This composite design provides the necessary rigidity through the coordinated interaction of different components rather than relying on bulk filling with heavy materials
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 solution provides a cost-effective and efficient method for manufacturing roller bodies and printing rollers, ensuring mechanical stability through the combination of the centring device and material bridges, which supports rigidity and compressive strength, while also enabling lightweight design and reduced material usage.
Implementation Method 1
the material bridge is formed by a filler material, which is applied and cured in a space at the end sections of the assembly between an inner surface of the outer hollow body and an outer surface of the inner body
Data Source
AI summary
The invention concerns a device for a roller body of a rotation roller with an outer hollow body that has a cylindrical shape and is built with an internal cavity, an inner body that has a cylindrical shape and is arranged in an assembly with the outer hollow body in the internal cavity of the outer hollow body, and a centring device that is used during installation of the assembly to centrally position the inner body in the internal cavity; a relevant material bridge in the opposing end sections of the assembly, whereby the relevant material bridge is formed by a filler, which is applied and cured in a space at the end section of the assembly between an inner surface of the outer hollow body and an outer surface of the inner body, which is in contact with the inner surface of the outer hollow body and the outer surface of the inner body and is fully formed between this area and forms a dimensionally stable connection between the outer hollow body and the inner body in the assembly. Furthermore, a printing roller adapter, a printing roller and a process for the production of a device for a roller body of a rotation roller are also envisaged.