Rotary Stuffing Device for Brush Bristle Bundles
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Solution Overview
Problem
Existing tamping devices for stuffing bristle bundles into brush bodies are complex, prone to faults, and have low operating speed due to requiring three translational movements and a sequential feeding process.
Innovation Solution
A tamping device with a rotatable base body integrating a cutting and shaping element, allowing for simultaneous cutting and shaping of fixing elements into U-shaped forms during rotation, which are then used to push bristle bundles into the brush body, simplifying the process and increasing speed by replacing translational movements with rotational and linear movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a linearly movable cutting blade and reciprocating jack are used for cutting and pushing fixing elements, then the device can perform the stuffing function, but the device complexity increases and operating speed decreases due to three translational work steps
Solution Approach 1:
The patent combines the cutting blade and shaping mold onto a single rotatable base body, merging two separate translational movement systems into one rotational movement system. This reduces the number of independent work steps from three (cutting, shaping, pushing) to two (rotational cutting/shaping, linear pushing), thereby simplifying control and increasing operating speed
Solution Approach 2:
The patent introduces a rotatable base body that performs rotational movement to accomplish both cutting and shaping operations simultaneously. This dynamic approach replaces the static, sequentially-operating translational systems with a more efficient rotational mechanism that can complete multiple operations in a single motion cycle
2Productivity
If the receptacle for the fixing element is arranged in the guide channel for the jack, then the structure is compact, but the jack must first be moved back behind the receptacle after pushing, reducing cycle frequency
Solution Approach 1:
The patent separates the receptacle for the fixing element from the guide channel for the jack by placing them in different spatial dimensions. The receptacle is positioned in front of the guide channel, allowing the jack to operate independently without needing to retract behind the receptacle. This spatial separation eliminates the waiting time in the cycle and increases operating frequency
Solution Approach 2:
The fixing element is pre-positioned in the receptacle before the jack begins its pushing operation. This preliminary arrangement allows the jack to immediately begin pushing without needing to first position or retrieve the fixing element, thereby eliminating idle time and increasing cycle frequency
Data Source
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AI summary
The apparatus has a cutting element (5) connected to a rotary base body (14), and a fixing element with the cutting element that is separated from fixing material (4) during rotation of the base body. A molding unit forms the fixing element at a molded fixing element (8), and a molding element (7) is connected to the base body. The fixing element is deformed by impact of the molding element during the rotation of the base body, where the cutting element and the molding element are firmly connected to the base body, and are moved non relative to the base body. An independent claim is also included for a method for stuffing a brush bundle in a brush body.