Bristle Tufting Drive Coupling for High-Speed Collision Avoidance
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Solution Overview
Problem
Existing brush production apparatuses face limitations in tufting speed as bristle displacers are directly acted upon by the tufting tool, restricting the increase in the number of bristle bundles tufted per unit time.
Innovation Solution
The tufting tool and bristle displacer are connected via a common drive shaft through a tool and displacer coupling gear mechanism, allowing indirect movement without restoring springs, enabling synchronized return movements and increased power transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the bristle displacer is directly acted on by the tufting tool during tufting, then the structure is simple, but the tufting speed is limited
Solution Approach 1:
A common drive shaft is introduced as an intermediary element that couples both the tufting tool and bristle displacer. This mediator enables synchronized operation of both components without direct mechanical interference, allowing the bristle displacer to be moved independently at optimized speeds while maintaining coordination with the tufting tool's operation.
Solution Approach 2:
The drive transmission is segmented into separate coupling mechanisms: a tool coupling gear mechanism for the tufting tool and a displacer coupling gear mechanism for the bristle displacer. Both mechanisms connect to the common drive shaft independently, allowing optimized control of each component's motion without constraining the other.
2Productivity
If restoring springs are used to move the bristle displacer back to starting position, then the displacer returns automatically, but the tufting speed increase is limited
Solution Approach 1:
The restoring springs are completely removed from the system. Instead of using elastic recovery to return the bristle displacer to its starting position, the invention employs a mechanically coupled return mechanism where the displacer's return movement is forcibly coupled to the tufting tool's return movement through the common drive shaft and displacer coupling gear mechanism.
Solution Approach 2:
The spring-based elastic recovery mechanism is replaced with a gear-based mechanical coupling system. The displacer coupling gear mechanism translates the rotational motion of the common drive shaft into the required reciprocating motion of the bristle displacer, providing controlled and synchronized return movement without relying on spring elasticity.
3Reliability
If the bristle displacer is moved directly by the tufting tool, then the coordination is simple, but collisions occur at high speeds
Solution Approach 1:
The common drive shaft serves as a mediator that decouples the direct mechanical interaction between the tufting tool and bristle displacer. Both components are driven through separate gear mechanisms that connect to the common shaft, allowing independent control of their positions and speeds to prevent collisions while maintaining coordinated operation.
Solution Approach 2:
The system employs dynamic control of the bristle displacer's movement through the displacer coupling gear mechanism. The displacer's position and speed can be independently adjusted and controlled during the tufting cycle, allowing real-time adaptation to avoid collisions with the tufting tool while maintaining synchronized operation for efficient bristle bundle displacement.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for higher tufting speeds and prevents collisions between the tufting tool and bristle displacer, ensuring efficient production of complex bristle fields with minimal damage to already tufted bundles.
Implementation Method 1
the tufting tool, via a tool coupling gear mechanism, and the bristle displacer, via a displacer coupling gear mechanism, are connected to and driven by a common drive shaft
Implementation Method 2
the tool coupling gear mechanism comprises a tool eccentric and the displacer coupling gear mechanism comprises a displacer eccentric
Data Source
AI summary
A device used in the technical field of producing bristle products. The device (1) includes a tufting tool (3) for tufting bundles of bristles (4) into a provided bristle carrier (5) and a bristle displacer (6) for displacing already tufted bundles of bristles from a tufting region of the tufting tool (3). The tufting tool (3) and the bristle displacement element (6) are connected to a common drive shaft (9) of the device via a respective coupling gear mechanism (7) and/or (8) and are driven by same.