Project AFOLD - JHU ME Senior Project 2007

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Welcome… team AFOLD Automated Folding Operation Layer with Deflector Alican Demir Evan Miller James Weisheit Joe Romano

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Current Device in Action

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Current Device in Action The System ■ High-speed paper folding mechanism ■ Adjusts type of fold (half-fold, tri-fold, no-fold, etc.) by varying the number and/or type of fold plates encountered by the paper. ■ Adjustment of length of each folded panel by moving the location of a mechanical stop along the folding plate.

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Introduction Objective Development of a fully automated fold-plate that will allow the customer to easily readjust the fold specifications by a user-interface without complex disassembly of the folding mechanism…

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Introduction Why Automation? (The Problem) ■ The machine needs to be stopped and the plates taken apart by hand in order to: □ Change the location of the paper folding-line. □ Adjust the number of folds by inserting or removing "deflector“ and/or “stopper” plates. ► Induces labor intensity, time consumption, inaccuracy, and complicated operator training.

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Constraints/Limitations Physical Constraints ■ Design volume constraint: 400mm wide x 275mm long x 60mm thick. ■ Mechanism Repeatability +/- 1 mm of set value ■ Minimum fold panel length 60mm. ■ Maximum fold panel length 200mm. ■ Maximum paper width 310mm.

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Constraints/Limitations Other Design Parameters and Limitations ■ Compatibility tested on 8.5in x 11in 20lb bond paper (copy paper) ■ Withstand impact force of 12 sheets at 135 inches/second (3.43m/s) ■ Geometry of "fold stop" must be preserved ■ Geometry, material, and finish of "deflector" must be preserved ■ Max full-range adjustment time: 30 seconds

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Design Ideas - I ■ One-piece stopper and deflector in stopper state

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Design Ideas - I ■ One-piece stopper and deflector in deflector state

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Design Ideas - II ■ “The Claw” deflector

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Design Ideas - III □ Power Screw Based Design:

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Design Ideas - IV ■ Deflector/stopper design with integration in one plate □ The idea is that the deflector and the stopper could co-exist in one plate without interfering with each other’s operation in a tight tolerance packaging.

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