Crosslapper Fabric Web Shielding Housing Design
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Solution Overview
Problem
Existing crosslappers fail to effectively shield formed fabric webs from external environmental effects such as air flows, leading to undesirable fading and structural changes during the manufacturing process.
Innovation Solution
A shielding device with a housing that covers and protects the side surfaces of the formed fabric web, forming a sealed shielding channel with the laying belt to prevent air flows and physical contact, while allowing for adjustable dimensions and configurations to accommodate different crosslapper setups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the formed fabric web is transported open on all sides, then the handling and processing is simple and easy, but the fabric web is exposed to air flows causing fading and structural changes
Solution Approach 1:
The patent employs a housing with side walls that form a shielding channel, creating a protective enclosure around the formed fabric web during transport. This shielding structure prevents direct exposure to air flows while maintaining a relatively simple configuration that integrates with the existing laying belt system.
2Object-affected harmful factors
If a cover belt is used to shield the fabric web, then protection against air flows is improved, but the complexity of the device increases and contact between the cover belt and fabric web may cause damage
Solution Approach 1:
The patent extracts the protective function from a contact-based cover belt system and implements it through a housing structure that provides shielding without requiring direct contact with the fabric web. This eliminates the complexity of driven cover belts while maintaining protection against air flows.
Solution Approach 2:
The housing acts as an intermediary structure between the external environment and the fabric web, providing protection against air flows without requiring direct contact with the delicate fabric material, thus avoiding potential damage from belt contact.
3Object-affected harmful factors
If protective plates are arranged between the laying carriage and the fabric web, then some protection is provided, but comprehensive shielding against air flows is not achieved
Solution Approach 1:
The patent transitions from two-dimensional protective plates arranged on the laying carriage to a three-dimensional housing structure with side walls that enclose the fabric web laterally, providing comprehensive shielding against air flows from all directions rather than just from below.
Data Source
AI summary
A crosslapper, a process and a formed fabric web shielding device for a cross lapper shield a formed fabric web moved in the crosslapper. The formed fabric web has a bottom side, a top side and side surfaces located at formed fabric longitudinal edges. The crosslapper includes a displaceable main carriage and a crosslapper laying belt feeding the formed fabric web in a web direction to the displaceable main carriage with the formed fabric web bottom side located on the cross lapper laying belt. The shielding device includes a housing configured to be arranged in the crosslapper and configured to cover the side surfaces of the formed fabric web located on the laying belt and being fed to the displaceable main carriage, which side surfaces extend along the web direction, to shield the side surfaces of the formed fabric web against external environmental effects.