AUTOMATIC PAPER CUP CRUSHER

Engineering Design Specification & Problem Definition Framework

3.1 QUESTION AND ANSWERS -

#	Questions	Answers	Objective	Function	Constraint
1	What is the target cost of the paper cup crusher?	Around RS 4000	✓
2	Where should the crusher be suitable for use?	Home and public places	✓
3	How should the paper cups be crushed?	Automatically	✓
4	What type of control should be provide?	Simple ON/OFF switch			✓
5	What range of of paper cup sizes should it handle?	Different cup sizes	✓
6	How should the crushed cups be collected?	In a separate collection container		✓
7	How should the machine identify the cup befor crushing?	Using a sensor		✓
8	What power source should the machine use?	Electrical power			✓
9	What safety control should be provide?	Emergency stop button			✓
10	What safety requirement must the crusher meet?	Safe operation with protective covering			✓
11	What size should the machine have for plaacement?	Compact size			✓
12	What noise level should be maintained during operation?	Low noise	✓
13	How should the machine be mainted?	Easy to clean and maintain	✓
14	How should the crushing mechanism be protected?	Fully covered			✓
15	What maintenance requirement should the machine have?	Low maintenance			✓
16	What energy requirement should the machine have?	Low power consumption	✓
17	What should happen if excessive load is detected?	Machine should stop automatically		✓
18	What protection should be provided against overloading?	Overload protection system			✓
19	What material requirement should the body satisfy?	Strong and durable material			✓
20	How quickly should the cups be crushed?	Fast crushing for quick disposal	✓	✓

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3.2 BASIC SURVEY AND REQUIREMENTS

1. Basic Survey

A basic survey is conducted to identify the needs and expectations of users for an automatic paper cup crusher.

Sl. No.	Survey Parameter	Description
1	Purpose	To identify user needs for an automatic paper cup crusher.
2	Application	Homes, offices, educational institutions, and public places.
3	Working Principle	Automatically crushes used paper cups using a sensor and motor.
4	Cup Size	Should handle different sizes of paper cups.
5	Noise Level	Should produce minimum noise during operation.
6	Design	Compact, user-friendly, and easy to clean.
7	Collection System	Separate container for collecting crushed cups.
8	Operation	Simple and automatic operation.
9	Target Cost	Approximately ₹5,000.

2. Requirements

The automatic paper cup crusher should satisfy the following technical and operational requirements.

Sl. No.	Requirement	Description
1	Control System	A simple ON/OFF switch for easy operation.
2	Sensor	Detects paper cups and initiates the crushing process automatically.
3	Motor	Drives the crushing mechanism efficiently.
4	Power Supply	Electrical power supply with low energy consumption.
5	Safety Features	Emergency stop button, protective covering, and overload protection.
6	Material	Strong and durable materials for long-term use.
7	Design	Compact, lightweight, and user-friendly structure.
8	Performance	Quickly crushes different sizes of paper cups with minimum noise.
9	Collection Container	Collects crushed paper cups separately.
10	Maintenance	Easy cleaning and low maintenance requirements.
11	Manufacturing Cost	Approximately ₹4,000.
12	Environmental Benefit	Reduces the volume of used paper cups and facilitates waste collection and disposal.

Conclusion

The automatic paper cup crusher is designed to provide an economical, safe, and efficient solution for managing used paper cups. The use of sensors and a motor-driven crushing mechanism helps automate the process, while the compact design and separate collection container make the machine suitable for homes, offices, and public places.

3.3 Identify Client Objectives

The client wants an affordable and efficient automatic paper cup crusher suitable for homes, offices, and public places. The main objectives are listed below.

Sl. No.	Client Objective	Description
1	Low Cost	The machine should be affordable, with a target cost of around ₹4,000.
2	Automatic Operation	The machine should detect and crush paper cups automatically.
3	Fast Crushing	It should crush used paper cups quickly and efficiently.
4	Different Cup Sizes	It should handle different sizes of paper cups.
5	Low Noise	The machine should produce minimum noise during operation.
6	Low Power Consumption	It should consume less electrical energy.
7	Easy Cleaning	The machine should be easy to clean after use.
8	Easy Maintenance	It should require minimal maintenance.
9	Efficient Waste Management	It should reduce the volume of used paper cups for easier collection and disposal.

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Problem Definition – Version 1.1

Paper cups are widely used in homes, offices, and public places. After use, they are generally discarded without crushing, which occupies considerable space in dustbins and storage areas. Crushing paper cups manually requires time and effort and can be untidy. Existing automatic crushing machines may be expensive, noisy, or too large for everyday use.

3.4 Identify Constraints

The following constraints must be considered while designing and developing the automatic paper cup crusher.

Sl. No.	Constraint	Description
1	Cost	The machine should cost approximately ₹4,000.
2	Control System	It should have a simple ON/OFF switch.
3	Power Supply	It should operate using electrical power.
4	Emergency Stop	It must include an emergency stop button.
5	Protective Covering	Moving parts must be covered to ensure safe operation.
6	Compact Size	The machine should occupy minimum space.
7	Noise Level	It should produce low noise during operation.
8	Maintenance	It should require low maintenance.
9	Energy Consumption	It should consume less electrical power.
10	Material Strength	The body should be made of strong and durable materials.
11	Safety	The machine should be safe and easy to operate.
12	Overload Protection	The system should include protection against motor overload.

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Problem Definition – Version 1.2

Automatic Paper Cup Crusher

Used paper cups generate considerable waste and occupy unnecessary space in dustbins and storage areas. Crushing them manually requires time and effort. To address this problem, an automatic paper cup crusher needs to be designed and developed to detect and crush used paper cups with minimum human effort.

The machine should be affordable, with a target manufacturing cost of approximately ₹4,000

3.5 Establish functions

Sr. No.	Function	Description
1	Volume Reduction	Reduces the volume of used paper cups for easy collection and disposal.
2	Waste Management	Minimizes the space occupied by used paper cups and reduces manual effort.
3	Automatic Detection	Detects paper cups automatically using a sensor.
4	Automatic Crushing	Crushes used paper cups automatically using a motor-driven mechanism.
5	Waste Collection	Collects the crushed paper cup pieces in a separate container.
6	Overload Protection	Provides automatic overload protection to ensure user safety and prevent machine damage.

Problem Definition – Version 1.3

The Paper Cup Crusher is designed to reduce the volume of used paper cups for easy collection and disposal. Manual disposal occupies more space and requires additional effort. This system automatically detects and crushes paper cups, collects the crushed pieces in a separate container, and provides automatic overload protection to ensure user safety and prevent machine damage