Bead Core Forming Device Clamping Friction Reduction
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Solution Overview
Problem
The existing bead core formation apparatuses damage the rubber coating of steel wires due to high friction when clamping and moving the wire, leading to coating deterioration.
Innovation Solution
A bead core formation apparatus with a clamping device that includes movable walls to reduce friction by initially positioning the steel wire adjacent to the clamping walls before clamping, minimizing direct contact and movement-related damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the distal end of the steel wire is moved in the feeding direction with the distal end inserted in the groove of the clamping device, then the distal end is positioned relative to the clamping device, but friction between the steel wire surface and the groove wall surface increases and damages the rubber coating
Solution Approach 1:
The patent introduces a guide device as an intermediary component between the steel wire and the clamping device. The guide device includes a guide groove that receives and guides the steel wire distal end to the former, separating the positioning function from the clamping function. This intermediary structure reduces direct friction between the steel wire and the clamping device's groove, thereby protecting the rubber coating while maintaining positioning accuracy.
Solution Approach 2:
The patent divides the clamping device into separate functional components: a guide device for positioning and guiding the steel wire, and a clamping device for securing it. The guide device has its own guide groove, while the clamping device has clamping jaws. This segmentation allows the steel wire to be positioned by the guide device before being clamped, reducing friction and damage during the positioning phase.
2Reliability
If the clamping device clamps the steel wire by moving the first wall to oppose the second wall, then the steel wire is securely held, but friction and potential coating damage occur during the clamping action
Solution Approach 1:
The patent implements preliminary positioning of the steel wire distal end in the guide groove before the clamping action begins. The guide device first receives and positions the steel wire, and only after this preliminary positioning is complete does the clamping device engage to secure the wire. This preliminary action ensures proper alignment before clamping, reducing unnecessary friction and coating damage during the clamping process.
Data Source
AI summary
A bead core formation apparatus includes a former, a guide device, and a clamping device. The former includes a circumferentially extending groove around which a steel wire is wound. The guide device guides the steel wire to the former. The clamping device is coupled to the former to clamp the distal end of the steel wire. The clamping device includes a first wall and a second wall that hold the steel wire in between to clamp the steel wire. The first wall is movable between a position where the first wall is opposed to the second wall and a position where the first wall is not opposed to the second wall. The guide device includes a steel wire moving portion that moves the distal end of the steel wire from a position separated from the second wall to a position adjacent to the second wall.