Fastener Liquid Applicator Rollers for Waste-Reducing Coating
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Solution Overview
Problem
Conventional methods for applying anti-seize paste or other viscous liquids to mechanical fasteners are time-consuming and result in excessive consumable usage and messy assembly processes, as they rely on manual brushing, which is inefficient and wasteful.
Innovation Solution
An applicator assembly comprising a housing, a vat body, applicator roller pairs, and removal roller pairs, driven by a gear assembly and motor, which simultaneously applies and removes viscous liquids from multiple fasteners, optimizing application and reuse of the liquid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual brushing is used to apply viscous liquid to fasteners, then the process is simple to operate, but the productivity is low and consumable usage is excessive
Solution Approach 1:
The patent replaces manual brushing with an automated roller application system. The applicator roller, driven by a motor through a gear reduction mechanism, automatically applies viscous liquid to fasteners as they pass through the coating chamber, eliminating manual labor while maintaining operational simplicity through automated control.
Solution Approach 2:
The removal roller automatically removes excess liquid from fasteners and returns it to the liquid reservoir through gravity and roller rotation. This self-service mechanism continuously recycles consumable material without manual intervention, improving productivity while reducing waste.
2Loss of substance
If manual brushing is used to apply viscous liquid, then the device complexity is low, but the loss of substance is high
Solution Approach 1:
The patent implements a liquid recovery system where the removal roller collects excess viscous liquid from coated fasteners and returns it to the liquid reservoir. This closed-loop system recovers and reuses consumable material, significantly reducing substance loss while the added complexity of the removal mechanism is offset by the elimination of waste disposal operations.
3Loss of time
If manual brushing is used, then the equipment is simple, but the time required for the process is excessive
Solution Approach 1:
The patent creates a continuous coating process where fasteners are fed through the coating chamber on a conveyor system, and the applicator roller continuously applies liquid as each fastener passes. The removal roller simultaneously operates to remove excess liquid and return it to the reservoir. This continuous operation eliminates the stop-start nature of manual brushing, dramatically reducing cycle time while the automated mechanisms handle the increased operational complexity.
4Productivity
If applicator rollers are added to the system, then the productivity increases, but the device complexity increases
Solution Approach 1:
The patent combines multiple functions into integrated components: the applicator roller both applies liquid and is driven by the motor-gear assembly; the removal roller both removes excess liquid and returns it to the reservoir; the gear reduction mechanism provides both speed reduction and torque multiplication. This functional integration achieves high productivity while managing device complexity through combined operations rather than separate systems.
Data Source
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AI summary
An applicator assembly for applying a liquid to at least one fastener includes a housing (22), a vat body (24), at least one applicator roller pair (26), and at least one removal roller pair (28). The housing (22) includes a sidewall assembly (38). The sidewall assembly (38) extends between and to a bottom end (42) and a top end (44). The vat body (24) is disposed within the sidewall assembly (38). The vat body (24) extends between and to a bottom side (66) and a top side (68). The vat body (24) forms a liquid cavity (78) at the top side (68). The at least one applicator roller pair (26) is disposed within the liquid cavity (78). The at least one applicator roller pair (26) includes a first applicator roller (26A) and a second applicator roller (26B). The at least one removal roller pair (28) is disposed between the liquid cavity (78) and the top end (44). The at least one removal roller pair (28) includes a first removal roller (28A) and a second removal roller (28B).