Automatic Can Crusher

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Mike Morena

Eric Miller

Brian Peters

Problem Statement and Concept

Our project for the semester consists of creating an automated can crushing machine. The purpose of the machine would be to easily load and crush a standard size aluminum beverage can. If possible we would like to be able to load and crush multiple cans in succession.

In order to automate this process many machine elements will be included:

  1. Electric Motor
  2. Quick Return Mechanism
  3. Gearing\gear reductions
  4. Linkages
  5. Flywheel
  6. Mechanical advantage parts
  7. Bearings

Customer Requirements and Engineering Specifications
Number Customer Requirements Engineering Specifications Target(units) Verification/Validation Why? Customer Satisfaction Level
1 Easily mountable Time to mount(min) 15 min Estimate the time to mount based on the geometry/complexity and number of parts The device should save time; not have a long setup time. Basic
2 Be able to crush cans quickly Cans per minute 12 cans/min 120 lbs of force @ can/crusher interface Using Working Model, it will be possible to simulate the can crusher and time how many cans it can crush in one minute As quick as a human but will be automated. Performance
3 Standard aluminum cans. ie. Beer, Soda, Juice Dimensions and Material Properties (inches,aluminum) Aluminum Can (4.8in tall, 2.5in Diameter) Measure actual cans and verify aluminum Most recyclable cans are standard aluminum. Basic
4 Minimal jamming Rate (jams/1000) crushes 10 Jams per 1000 crushes Estimate how many jams the can crusher will have based on the geometry/complexity of the can Device should save time, not take time to unjam. Basic
5 Crush cans to a certain thickness Average thickness of crushed can (cm) 3/4 inch Set the can crusher to a certain displacement when crushing a can, guaranteeing the can will be of a certain thickness when it is crushed General thickness of hand crushed. Needed for ejection hole. Performance
6 Reasonable size Dimensions/Volume (cm/cm^3) 2ft tall x 2ft deep x 10in wide - Weight (g) Measure dimensions in Working Model Mountable on wall without taking too much room Basic
7 Reasonable cost (Retail) Dollars ($) $75 Estimate cost based on physical parameters of can crusher Motor may be expensive, a little more than double the price of hand crusher. Performance
8 Aesthetics Customer satisfaction survey (%) 65% Conduct a survey on people based on what the design concept of the can crusher looks like Should look nice when hanging on the wall Performance
9 Durable Number of crushes until failure (#) 10,000 crushes Static and Fatigure Failure Analysis Roughly a lifetime of can crushing (Avg individual) Performance
10 Safe (Child Proof) No. of sharp edges, finger size openings (#)(cm) 0 Pinch Points\Exposed areas Ensure that all edges are rounded and all openings fit within a tolerance smaller than that of a child's finger Liability is an important issue Basic

Automatic Can Crusher

Multi-Can Crusher
Multi-Can Crusher