Brush Stuffing With Adjustable Rear Dead Center Positioning
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Solution Overview
Problem
Existing brush stuffing devices experience uneven bristle densities and clogging issues, leading to reduced cycle rates and increased downtimes due to bristles being pressed together excessively or insufficiently in the magazine outlet areas.
Innovation Solution
The drive system adjusts the relative position of the rear dead center within the magazine outlet area, allowing tufts to be removed from different sections, ensuring even bristle tension and preventing buildup, and a controller manages this positioning to optimize tuft removal across multiple brushes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the tuft separator is positioned at a fixed location in the magazine outlet area, then the stuffing process is simple and fast, but uneven bristle tension and clogging occur
Solution Approach 1:
The patent applies the dynamics principle by making the rear dead center position adjustable relative to the magazine outlet area. Instead of a fixed position, the system can dynamically change the tuft removal location to different sections of the outlet area, preventing bristle buildup and ensuring even tension distribution while maintaining high cycle rates
2Manufacturing precision
If bristles are pressed together strongly in the magazine, then tuft separation is clean, but clogging and uneven density occur in the outlet area
Solution Approach 1:
The patent applies the local quality principle by allowing different sections of the magazine outlet area to be used for tuft removal. By selecting specific local positions for the rear dead center, the system optimizes bristle flow characteristics at each location, preventing clogging while maintaining clean tuft separation through localized pressure distribution
3Productivity
If the magazine outlet area is always used at the same position, then the stuffing process is efficient, but bristle buildup occurs in certain sections
Solution Approach 1:
The patent applies the periodic action principle by systematically varying the rear dead center position through different sections of the magazine outlet area in a controlled sequence. This periodic change in tuft removal location prevents bristle buildup in any single section while maintaining consistent stuffing efficiency across multiple brushes
Data Source
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AI summary
A brush stuffing device is equipped with at least one magazine, a tuft separator (20), a stuffing tool (12) that takes separated tufts (19) from the tuft separator (20) and is movable back and forth between a stuffing position and a filling position, a drive system that moves the tuft separator (20) relative to the at least one magazine (22, 22', 22") from a rear dead center to a front dead center, at which the tuft (19) is discharged towards the receiving opening (34), and a control unit (50) that controls the drive system. The drive system can adjust the relative position of the rear dead center to the at least one magazine (22, 22', 22") such that the rear dead center can be located in different sections of the discharge area (32) of the magazine (22, 22', 22") from which tufts (19) are taken. and bristles can be removed from these different sections of the outlet area (32).