Primer Roller With Interchangeable Sleeves for Rapid Job Changes
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Solution Overview
Problem
Industrial print presses face challenges in efficiently accommodating different substrate materials and thicknesses, as well as varying priming and print patterns, leading to potential downtime and inventory management issues due to the need for customized rollers.
Innovation Solution
A primer apparatus with interchangeable rollers featuring a spindle, core, and adapter cylinder, along with elastically deformable annular sleeves, allows for quick setup and configuration changes without maintaining dedicated rollers, using a fluid supply system to position and lock the sleeves in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If dedicated customized rollers are used for different substrate materials and priming patterns, then printing quality and precision are improved, but device complexity and inventory requirements increase
Solution Approach 1:
The roller system is segmented into a common roller body and interchangeable sleeve components. Each sleeve can be independently removed and replaced to accommodate different substrate materials and priming patterns, while the main roller structure remains unchanged. This segmentation allows the print press to handle multiple printing configurations without maintaining a full inventory of complete customized rollers.
Solution Approach 2:
The common roller body and adapter cylinder are designed as universal components that can work with multiple types of sleeves for different substrates. The system provides multi-functionality by allowing a single base roller to perform various priming operations through sleeve interchangeability, eliminating the need for dedicated rollers for each substrate type.
2Manufacturing precision
If dedicated customized rollers are maintained for different print jobs, then printing precision is improved, but loss of time during job changes increases
Solution Approach 1:
By segmenting the roller into a permanent body and interchangeable sleeves, the system allows rapid replacement of only the sleeve component during job changes rather than replacing entire customized rollers. This significantly reduces the time required for job transitions while maintaining priming precision through proper sleeve selection and installation.
Solution Approach 2:
The adapter cylinder is pre-configured with mounting interfaces and the sleeves are designed with ready-to-install features. This preliminary preparation of the roller system allows for quick sleeve changes without requiring complex setup procedures, thereby reducing job change time while ensuring precise priming application.
3Ease of operation
If interchangeable sleeves with fluid supply system are used, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The fluid supply system is integrated into the modular sleeve components rather than the entire roller assembly. This segmentation allows the fluid delivery mechanism to be included only in the interchangeable parts that require active control, while the main roller body remains structurally simple. Operators can easily select and install sleeves with appropriate fluid supply configurations for different printing jobs.
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
Reduces print press downtime and inventory needs by enabling adaptable substrate priming configurations, allowing for rapid job changes and reducing the need for specialized rollers.
Implementation Method 1
elastically deformable annular sleeves, allowing for rapid job changes and reducing the need for specialized rollers
Data Source
AI summary
A primer roller may include a cylinder having an outer support surface. The outer support surface support surface may have a length in an axial direction and a fixed outer diameter extending along the length. The roller may further comprise, at least at least one elastically deformable annular sleeve having an axial length less than the axial length of the support surface of the cylinder an external diameter greater than the outer diameter of the support surface of the cylinder, and an internal diameter which provides a friction fit on the support surface of the cylinder. The outer surface of the support roller comprises a plurality of fluid outlets. The outlets are distributed about the support surface. Fluid expelled from the fluid outlets enables the sleeve to be slidably positioned relative to the support surface. A priming apparatus and a print press are also disclosed.