Rotary Screen Pattern Device for Paper Machine Clothing
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Solution Overview
Problem
Current methods for manufacturing clothing for paper machines require multiple complex steps and high costs due to the need for multiple printing operations on structured or non-structured base structures, making it time-consuming and expensive to produce clothing with desired patterns.
Innovation Solution
A device with a rotary screen and pattern rings allows for simultaneous application of two pattern components using a follower system, enabling swift and cost-effective manufacturing of clothing with diverse patterns without misalignments, by depositing material through perforations and using extrusion nozzles synchronized with the rotary screen's movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple printing operations are performed on structured or non-structured base structures to create pattern combinations, then pattern diversity is improved, but manufacturing complexity and processing time increase significantly
Solution Approach 1:
The patent combines multiple printing operations into a single integrated device that can apply multiple patterns simultaneously. The printing device includes multiple printing units with different screen meshes that can be positioned at different heights, allowing simultaneous deposition of multiple pattern layers in one operational step, thereby reducing manufacturing complexity while maintaining pattern diversity
Solution Approach 2:
The printing device is segmented into multiple independent printing units, each capable of applying a specific pattern. Each printing unit has its own screen mesh and can be independently controlled, allowing flexible combination of patterns while simplifying the overall manufacturing process by parallelizing operations
2Adaptability or versatility
If multiple printing operations are performed sequentially on clothing surfaces, then various pattern combinations can be achieved, but processing time and manufacturing costs increase
Solution Approach 1:
Multiple printing operations are merged into a single simultaneous operation using multiple printing units. The device can apply multiple patterns in parallel on different zones of the clothing surface or layer by layer in one continuous process, dramatically reducing processing time while maintaining the ability to create various pattern combinations
Solution Approach 2:
The printing device utilizes periodic motion of the screen meshes and printing units to achieve simultaneous multi-pattern application. The synchronized periodic movement of multiple printing units allows each to complete its pattern deposition cycle in parallel, increasing overall productivity while maintaining pattern diversity
3Adaptability or versatility
If multiple printing operations are performed on clothing surfaces, then diverse patterns can be created, but alignment precision becomes difficult to maintain
Solution Approach 1:
The patent introduces a common support structure and synchronized positioning mechanism as an intermediary between multiple printing units. This mediator ensures that all printing units move in unison and maintain precise relative positions, guaranteeing accurate pattern alignment while allowing each unit to apply different patterns independently
Solution Approach 2:
The invention replaces complex mechanical alignment procedures with a synchronized positioning system that uses coordinated motion control. The printing units are mechanically linked through a common drive mechanism that ensures they move together precisely, eliminating alignment errors that would occur with separate sequential operations
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 method simplifies the manufacturing process by applying multiple patterns in a single operational step, reducing processing time and costs while enabling a wide range of pattern combinations on clothing of arbitrary widths, ensuring precise alignment and controlled application of materials.
Implementation Method 1
a material in a liquid or pasty state is squeezed through the perforations of the sleeve face of the rotary screen and is deposited on the surface of the clothing
Implementation Method 2
Pattern generation is regulated by way of a follower system
Data Source
AI summary
A device for producing a pattern combination on a clothing includes the following: a rotary screen, a cylindrical jacket surface with a perforation pattern that defines a first pattern component. Material in the liquid or pasty state is pressed through the perforations of the jacket surface of the rotary screen and deposited on the surface of the clothing in order to produce the first pattern component on a surface of the clothing, while the rotary screen, rotating several times about a longitudinal axis thereof, rolls on the surface of the clothing in at least one path that continuously revolves on the surface of the clothing at least once. At least one device produces, synchronously and/or simultaneously, a second pattern component, which device is connected indirectly or directly to the rotary screen. The device for producing the pattern combination also includes a post-run system.