1 Engineering Design 100 Section 10 Introduction to Engineering Design Team 4 The Dumpling Revolution Submitted by Lauren Colacicco, Ellis Driscoll, Eduardo Granata, Megan Shimko Submitted to: Xinli Wu Figure 1: Prototype Fall, 2014
2 Abstract Innovative and exciting technology is introduced to the world of cuisine with the formation of the dumpling maker. This new invention can make high quality dumplings with its ability to blend ingredients, flatten dough, and fold dumplings. To learn exactly how this technology is incorporated, continue reading to see impressive design features, operations, and instructions.
3 Table of Contents Cover Page (Lauren Colacicco)....1 Abstract (Lauren Colacicco).......2 Table of Contents (Lauren Colacicco).....3 Introduction (Megan Shimko).. 4 Description of Design Task (Lauren Colacicco)........4 Problem Statement Mission Statement Design Specifications Design Approach...5 9 Project Management (Gantt Chart) (Ellis Driscoll and Lauren Colacicco) Customer Needs Assessment (Megan Shimko) Concept Generation (Lauren Colacicco) Initial Designs (Ellis Driscoll) Design Selection Matrices (Eduardo Granata and Ellis Driscoll) Working Drawings (Ellis Driscoll and Eduardo Granata).10 12 Prototype (Ellis Driscoll)...... 12 Design Features (Lauren Colacicco)......13 Operation Instructions (Lauren Colacicco)... 13 Engineering Analysis(Lauren Colacicco)......14
4 Cost Analysis (Megan Shimko).....15 16 Summary and Conclusion (Megan Shimko)...16 References (Megan Shimko)...16 Introduction For this design project, the goal was to create a dumpling maker in order to help small businesses and families. Various steps had to be taken to formulate ideas and complete a prototype for the dumpling maker. These steps included: brainstorming ideas, calling businesses to get opinions, establishing drawings, calculating the appropriate dimensions, and creating a model of the dumpling maker. The purpose of this project was to teach students to work in groups and properly follow steps that lead to the completion of a project. Description of Design Task Problem Statement: There is no machine or product that can quickly make a large amount of dumplings. There is a demand commercially for a dumpling maker to be used in restaurants and can even be used at home for families. This would not only speed up production, but allow for a larger volume of dumplings to be made. An automatic or semi automatic dumpling maker would fill the void in the market. Mission Statement: The mission of this assignment is to design a dumpling maker that fulfills the needs of customers on all levels, while keeping costs low. This includes
5 providing a quick, safe, easy, and accurate method of dumpling making that allows for a large amounts of dumplings to be made at one time. Design Specifications: Create a dumpling maker that is semi automatic or automatic, makes ten dumplings per minute on average, and is safe for use and dishwasher safe. All materials must cost under $200. Design Approach Gantt Chart PLAN PLAN ACTUAL ACTUAL PERCENT ACTIVITY STAR T DURATION START DURATION COMPLETE PERIOD S 1 2 3 4 5 6 7 Cover Page 1 1 5 1 100% Abstract 1 1 5 1 100% Introduction 1 1 1 1 100% Table of Contents 5 1 5 1 100% Description of Design Task 5 1 4 1 100% Prototype 3 3 3 3 100% Working Drawings 3 3 3 3 100% Design Features 4 2 5 2 100% Operation Instructions 4 1 5 1 100% Working 4 2 5 1 100%
6 Mechanism Cost Analysis 6 2 6 2 100% Conclusion 6 1 6 1 100% Acknowledgemen ts 6 1 5 1 100% Customer Needs Assessment: Customers who would purchase a dumpling maker had preferences on what they would want and look for when purchasing one. On average, customers want to be able to make ten dumplings per minute; however, they want to make dumplings in batches of thirty, therefore the machine has to be capable of making thirty dumplings every three minutes. If the maker made more than ten dumplings per minute, there would be an excess amount of dumplings. If it made less than ten per minute, they would not have enough dumplings to feed their customers. They also want the dumpling maker to mix the dough, filling, and put the dumplings together so there is only one machine that does all of the work versus having multiple machines that each do a different job. These preferences would save them time and money, therefore that is what the customers will focus on when purchasing a dumpling maker. Concept Generation: The design concept behind our dumpling maker came from the three step process used to make dumplings. This process includes flattening dough, filling the dumpling, and folding the dumpling. The design is based on fulfilling these three basic steps. To make the process easier, the dumpling maker was built up vertically to use gravity to our advantage. It was also based on a system of rotation. Rotation was used to move each of the moving parts so that the user only has to use one function to make dumplings. With this design, the user only has to rotate a crank to
make dumplings. Overall, the design was picked to make a complete dumpling and to be easy to use. 7
8 Squasher Initial Designs Smasher Squoosher
9 Squisher Smusher
10 Design Selection Matrices: Table 1. Dumpling Maker Design Concepts Criteria Squasher Smasher Squisher Smusher Squoosher Ease of use 0 0 0 0 0 Portability + 0 0 + Durability 0 0 0 0 Production speed + 0 0 + + Production quality 0 0 0 0 0 Ease of manufacture 0 + Sum + 2 0 1 1 2 Sum 0 3 6 5 2 3 Sum 1 0 0 3 1 Net Score 1 0 1 2 1 Rank 1 4 1 5 1 Fate develop discontinue combine discontinue combine
11 Final Design (Ellis Driscoll) Assembly Drawing (Without Cover) (Ellis Driscoll)
12 Non Standard Parts Base (Ellis Driscoll) Containers (Ellis Driscoll)
13 Outer Wheel (Ellis Driscoll) Prototype
14 Design Features Washable containers Containers holding fillings and dough are easily washable and removable Rotating Screws The rotating screws located inside the dough and filling container not only mix ingredients, but also push contents through the container to the next stage of dumpling making. Dough Cutting This rotating cutting mechanism cuts dough into the perfect amount for the perfect dumpling. By cutting the dough into spheres, the dough is ready to be flattened and filled. Roller The roller lies perfectly over a rotating plate, so that the dough passing under is flattened to a desirable thickness. Rotating Plate After dough is cut, it falls onto a rotating plate, where it is consecutively flattened, filled, and folded. This three in one feature prepares the dumpling in its finest stages to perfection. Tray After the dumplings are properly prepared by the rotating plate, they are dropped off the plate into a convenient tray, where they can be obtained and cooked. Crank On top of the whole dumpling making mechanism is an easily rotating crank. The crank rotates all the previously stated design features in perfect time to make the dumplings flow from one stage to the next it a timely fashion. One simple step controls the entire dumpling making apparatus. Operation Instruction 1. Load dough into the top left container, filling to the top. 2. Load desired filling into the top right container, filling to the top. 3. Turn the crank clockwise slowly and at an even pace until all dough and filling run out. 4. Once all the dumplings are made, stop cranking and collect all dumplings in the drop tray. Cleaning Instructions 1. Remove dough and filling containers and clean with soap and water. 2. Wipe dough cutter clean with soap and water and dry with towel. 3. Remove rotating plate and clean with soap and water. 4. Wipe drop tray clean with soap and water and dry with towel. 5. When all pieces are dry, reassemble and store in a dry place.
15 Engineering Analysis The dumpling maker s engineering is rooted around the idea of circles. Each piece is designed to rotate in coordination with other pieces. The rotating pieces include two screws, used to mix the dough and filling and push it down in the container, the dough cutter, used to measure the amount of dough for one dumpling, and the rotating plate, used to flatten, fold, and fill dumplings. Using a system of gears, each piece can be rotated by turning one crank, which connects them all. The gears size are relative to the speed that the piece has to rotate, so the dumpling can flow flawlessly through the system. The two screws rotating inside the dough container and the filling container are used to continue mixing ingredients, but mostly to feed the ingredients to the next part of the process. The screws allows the down to slowly and steadily get pushed down in the container. That way, there is a steady feed of dough and filling throughout the system. The dough cutter s shape allows for the perfect measurement of dough for each dumpling. As the dough gets fed from the container, it enters the dough cutter and is filled to the top. The dough cutter is engineered to cut the dough into spheres, from which they can easily be flattened in the shape of a thin cylinder. It also measures the correct volume of dough to allow for the perfect thickness and size. As the dough leaves the dough cutter, it is put on a rotating plate. The plate rotates underneath a rolling pin that flattens the spherical dough into cylindrical thin dough, ready to be filled and folded. As the plate rotates, it passes under the container with filling and a measured amount of filling is added to the dough. After it is filled, the dough is folded. Small cut outs with cinched edging fold the dough over so that the dumpling is complete. One side of the dough is lifted over to the other side and thus, the dumpling is sealed. Continuing to rotate, the side supporting the dumpling is dropped and the dumpling then lands on the drop tray. After that final step, the dumpling is complete.
16 Cost Analysis Materials by Part Base 78.5 in 2 1 in polypropylene plastic sheet 2 1 56.0 in 2 4 in polypropylene plastic sheet 5 in 1.5 in polypropylene plastic rod ϕ Outer wheel 12.1 in 3 polypropylene Leaves 8.8 in 3 polypropylene Supports 3x 14 in ϕ.5 in polypropylene rods Crankshaft 15 in ϕ.5 in gray cast iron rod Containers 2x 13.1 in 3 polypropylene plastic Top 313 in 2 1 2 in polypropylene plastic sheet Screws 5.5 in ϕ.75 in aluminum rod Cutter 1.5 in 3 solid aluminum Roller 2.8 in 3 solid stainless steel Cover 322.0 in 2 1 8 in polypropylene plastic sheet Total 391 in 2 1 2 in polypropylene plastic sheet 56.0 in 2 1 4 in polypropylene plastic sheet 322.0 in 2 1 8 in polypropylene plastic sheet 42 in ϕ.5 in polypropylene rods 38.4 solid polypropylene 15 in ϕ.5 in gray cast iron rod 5.5 in ϕ.75 in aluminum rod 1.5 in 3 solid aluminum 2.8 in 3 solid stainless steel
17 Materials Bought Cost 2 Easy to Machine polypropylene Plastic Sheets (12 x24 ; ⅛ thick) $14.30 Easy to Machine Chemical Resistant Polypropylene Sheet $10.83 Easy to Machine Chemical Resistant Polypropylene Sheet $52.17 8 ounce Brush Top Can Plastic Glue $12.13 1 Multipurpose 6061 Aluminum Rods (½ diameter, 2 long) $6.09 3 Easy to Machine polypropylene Plastic Rods (½ diameter, 2 long) $12.00 Easy to Machine Chemical Resistant Polypropylene Solid Bars $4.90 Multipurpose 304 Stainless Steel Solid Bars $3.00 Easy to Machine Gray Cast Iron $80.00 Total: $195.42 Conclusion The purpose of this project was to help students prepare for their future careers by working together to complete a project. A numerous amount of steps were taken in order to build the dumpling maker. After working together to brainstorm ideas, retrieve information, formulate appropriate dimensions, and build the dumpling maker, it was understood that the dumpling maker could be slightly improved. This project served to teach the groups that every design can be improved in some way. Despite the needed improvements, the group learned how to work together, problem solve, and learn what it takes to be engineer. References "McMaster Carr." McMaster Carr. Web. 26 Oct. 2014.