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Static Paper Bending Stiffness Measurement System

Static Paper Bending Stiffness Measurement System. By Group 7. Design Challenge. We chose the paper bending stiffness measurement challenge Problem Statement

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Static Paper Bending Stiffness Measurement System

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  1. Static Paper Bending Stiffness Measurement System By Group 7

  2. Design Challenge • We chose the paper bending stiffness measurement challenge • Problem Statement • Currently within the Xerox’s iGen4 there is no device to measure the paper bending stiffness by the IGen4 itself. Xerox needs a reliable method of measuring the paper’s stiffness as it passes through the printer. • Mission Statement • To design an accurate, efficient device that can be used in iGen4; it must meet the needs and expectations of Xerox Company and must be self-contained with the IGen4. • Design Specifications • Design a device that detects the bending stiffness of an 8.5″×11″ sheet moving through a simple paper path. • The sheet should be moving somewhere between 250 to 750 mm/s. The paper stock stiffness needs to be measured within a tolerance of 100 millinewtons.

  3. Brainstormed / Design Matrix Evaluation • Stack Bending System • Vertical lift of the paper stack • Laser System • Lowers to find height of the bend • Camera System • Takes a picture and calculates height of bend • Slot Based System • Paper would move through slots, giving a bandwidth of stiffness • Touch Sensor System • Paper lifts up • Went forward with the Laser System • (camera needed external light)

  4. Prototype • Created a Solidworks Model • Got parts from Home Depot • Built this bad boy: • Foam board body • Wooden rollers • Painted interior • Counter balance support • Scale is pretty much 1 to 1

  5. How it works • Paper moves off of the stack • Paper begins to bend • Laser is interrupted • Laser moves down • Laser gets the measurement • Bottom rollers adjust • Measuring device becomes just another part of the conveyor belt

  6. Any Questions?

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