Coaxial Winding Receiving Device for Multi-Web Material Handling
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Solution Overview
Problem
Existing material web winding devices are limited in their ability to simultaneously wind up multiple webs with varying widths without requiring excessive space and are inflexible in adapting to different web widths, leading to inefficiencies and restrictions in the number of webs that can be processed.
Innovation Solution
The use of a receiving device with multiple carrying arms allows for the coaxial arrangement of winding cores, enabling the simultaneous winding of multiple material webs with adjustable width settings, and the implementation of a 'shaftless' winding mechanism using center sleeves and pivotable contact rolls for efficient and space-saving operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple winding-up devices are set up in succession to wind up multiple material webs, then each web can be wound up individually, but a large space is required and the arrangement becomes highly sensitive to straight guidance requirements
Solution Approach 1:
The patent merges multiple winding functions into a single receiving device by providing multiple carrying arms that can each hold and rotate winding cores. This allows multiple material webs to be wound up simultaneously in one compact unit rather than requiring separate winding-up devices spaced out along the production line, thereby reducing the overall space required while maintaining the ability to process multiple webs.
Solution Approach 2:
The patent transitions from a linear arrangement of multiple winding-up devices to a radial/coaxial arrangement where multiple winding cores are mounted on carrying arms that rotate around a central axis. This dimensional change from linear to radial configuration enables multiple webs to be wound simultaneously in a compact footprint, dramatically reducing the space required compared to sequential linear arrangement.
2Adaptability or versatility
If the width of material webs is to be subdivided into multiple narrower webs, then several winding-up devices are required, but this restricts the number of webs to a maximum of four and requires the plant to stand still for width changes
Solution Approach 1:
The receiving device is designed as a universal platform with multiple carrying arms that can accommodate various numbers and widths of material webs. Each carrying arm can be independently adjusted to handle different web widths, and the entire system can be reconfigured without stopping the plant. This multi-functional design eliminates the need for multiple dedicated winding-up devices while maintaining high adaptability to different production requirements.
Solution Approach 2:
The patent introduces dynamic adjustability to the carrying arms, allowing their positions and configurations to be changed during operation. This enables the system to adapt to different web widths and numbers of webs without requiring the plant to stand still, transforming a static, rigid system into a flexible, reconfigurable one that can respond to changing production needs in real-time.
3Ease of operation
If laterally arranged drive shafts are used to support winding sleeves, then two winding cores can be supported, but the total width is fixed and only one web width can be reduced when the other is enlarged
Solution Approach 1:
The carrying arms are designed with adjustable positions along the radial direction, allowing their spacing to be dynamically changed. This enables the total width of the receiving device to be variable rather than fixed, and individual arm positions can be adjusted to accommodate different web widths independently. This dynamic configuration allows flexible adaptation to various web width combinations without being constrained by a fixed total width.
Solution Approach 2:
The receiving device is segmented into multiple independent carrying arms, each capable of independent positioning and adjustment. This segmentation allows each arm to be optimized for specific web widths while the overall configuration can be adjusted by repositioning individual arms, providing both local adaptability (individual web width adjustment) and global flexibility (total width variability).
Data Source
AI summary
An arrangement for winding up at least two material webs, in particular film webs, having at least two receiving devices, for the rotatable mounting of at least one winding core each. The receiving devices are transferable between a winding position for winding up at least one material web on the winding core, and a removal or loading position, respectively, for removing at least one winding core which has finished being wound up, or for feeding at least one empty winding core. At least two winding cores are coaxially arranged in the receiving device for simultaneously winding up the material webs on separate winding cores, the winding cores each being rotatably mounted in two bearing sites adjacent to the respective winding core. The receiving device has at least three carrying arms, one winding core each being mounted between two carrying arms.