Draft Device Fiber Control Member Cutout Fly Waste Management
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Solution Overview
Problem
Conventional fiber control members in draft devices do not effectively address the accumulation of fly wastes during the drafting process, leading to inefficiencies and potential yarn breakages.
Innovation Solution
A fiber control member with a cutout at one end portion and a fiber bundle curving section at the other, designed to prevent fly wastes from accumulating by allowing them to fall away from the draft rollers, and featuring a plate-like structure with specific thickness and attachment grooves for easy installation and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fiber control member is provided between draft rollers to curve the fiber bundle transportation path, then drafting efficiency is improved and thick sliver can be processed, but fly wastes accumulate around the fiber control member and draft rollers
Solution Approach 1:
The fiber control member is segmented with a cutout portion that divides its structure, creating a gap through which fly wastes can fall. This segmentation allows the member to maintain its fiber-guiding function while eliminating the accumulation problem by providing an escape path for waste materials.
Solution Approach 2:
The cutout portion extracts or removes the problematic accumulation zone from the fiber control member structure. By creating an opening in the member body, fly wastes are extracted from the enclosed space where they would normally accumulate, allowing them to fall through the cutout instead.
2Stability of the object's composition
If the fiber control member is made with a thicker plate-like structure, then structural stability is improved, but fly wastes may hook onto the member and accumulate
Solution Approach 1:
The thick plate-like structure is segmented by introducing a cutout portion, which creates an internal void space. This segmentation prevents fly wastes from having a continuous surface to hook onto, while the remaining thick structure maintains the necessary structural stability for withstanding drafting forces.
3Stability of the object's composition
If the fiber control member is fixed securely to the main body frame, then positional stability is improved, but maintenance and cleaning become difficult
Solution Approach 1:
The fiber control member is designed as a separate, segmented component with a cutout portion that allows it to be easily removed and reinstalled. This segmentation enables the member to be detached for maintenance and cleaning without requiring disassembly of the entire draft device, balancing positional stability during operation with ease of maintenance.
Data Source
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AI summary
A sliver curving section (51) adapted to curve a transportation path of a sliver (6) to be drafted by pairs of draft rollers is formed at an end portion of a fiber control member (50). A portion where the sliver curving section (51) is formed is referred to as a first end portion, and a portion (an end portion) located opposite to the sliver curving section 51 is referred to as a second end portion. A cutout (52) that has been cut out towards the first end portion is formed at the second end portion of the fiber control member (50).