Filament Guide Rollers and Combs for Stable Pitch Alignment
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Solution Overview
Problem
Existing solutions for guiding and maintaining filaments in calendering machines fail to ensure quick and accurate placement of filaments at a predetermined pitch, leading to potential misalignment and 'jumping' issues during the calendering process.
Innovation Solution
A guiding and maintenance machine equipped with a group of guide rollers and an application roller, each with circumferential grooves, and preparation combs that move relative to the rollers to capture and maintain filaments at a precise pitch, preventing misalignment and 'jumping' by forming an anti-jump cage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If guide rollers with circumferential grooves are used to align filaments, then filament alignment is improved, but filament jumping and misalignment occur during the calendering process
Solution Approach 1:
The guide roller is designed with movable guide elements that can dynamically adjust their position. The guide teeth are arranged in multiple rows with different pitches, allowing the system to adapt to variations in filament feed and maintain reliable alignment without jumping or misalignment during the calendering process.
Solution Approach 2:
The guide roller surface is segmented into multiple rows of guide teeth with different pitches. This segmentation allows different sections of the roller to handle different filament positioning requirements, ensuring that filaments remain aligned and prevented from jumping while maintaining manufacturing precision.
2Manufacturing precision
If multiple guide rollers are used to maintain filament pitch, then alignment control is improved, but the complexity of the guiding system increases
Solution Approach 1:
The guide roller is designed to perform multiple functions simultaneously: it guides filaments, maintains pitch, and prevents jumping all in a single component. The multiple rows of guide teeth with different pitches allow one roller to handle various alignment requirements, reducing the need for multiple separate guiding devices and simplifying the overall system structure.
3Reliability
If filaments are tightly constrained in grooves to prevent jumping, then position stability is improved, but the ease of filament feeding and alignment becomes more difficult
Solution Approach 1:
The guiding system uses movable guide teeth that can dynamically adjust their constraint level. During feeding, the guides are more open to allow easy insertion, then transition to a tighter constraint mode to prevent jumping during calendering. This dynamic adjustment maintains both ease of operation and position stability.
Solution Approach 2:
The guide teeth act as an intermediary element between the filament feed system and the calendering process. They provide a gradual transition from loose feeding to tight constraint, allowing filaments to be easily fed initially and then securely held in position without causing damage or difficulty during operation.
Data Source
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AI summary
The invention relates to a guiding and maintenance machine (100) including an upper guide roller (102) and a lower guide roller (104), each guide roller (102, 104) having a plurality of circumferential grooves (102a, 104a) defined on a respective circumferential surface (102b, 104b). At least one preparation comb (200) is provided with the machine in correspondence with each guide roller (102, 104), each comb having a support (202) with an upper surface (202d) from which a plurality of teeth (204) extend. The teeth, with a predetermined uniform height, are aligned and parallel along the length of the support. The teeth of a preparation comb attributed to the upper guide roller are positioned at a pitch there between in correspondence with the grooves of the upper guide roller, and the teeth of a comb attributed to the lower guide roller are positioned at a pitch there between in correspondence with the grooves of the lower guide roller, so that the preparation combs convey the filaments from the supply creels to the guide rollers at a predetermined pitch positioning outside the guide rollers.