PAPER AND PLASTICSHREDDING MACHINE

GROUP 8

CONTENTS Abstract

Problem Statement

Research Objective

Review of Related Literature

Historical Background

Experimental Design (Proposal)

Parts and Function

Machine Processes

Operation

References

ABSTRACT

This study has a target to create a

prototype of a machine that has a capability of

shredding paper and plastic materials into

smaller and fine pieces. The group visualize that

the prototype that we will made can be used in

industrial and commercial practice. The core of

the research is to distinguish if the machine was

effective in terms of its shredding ability,

capacity and duration of the process.

PROBLEM STATEMENT

Plastic materials and papers which are

not disposed properly can cause

pollution. The proposed machine should

have a mechanism which can recycle this

plastic materials and decrease the

amount of volume that it occupies.

The material used in the mechanism

should be non-corrosive and should be

able to handle plastic materials which are

not disposed properly.

RESEARCH OBJECTIVE

The Paper and Plastic Shredding Machine

has an objective to reduce used papers

and used plastic materials that are

rejected to various sizes for subsequent

reclamation and reuse.

REVIEW OF RELATED LITERATURE

Here are some terminologies that will help

to understand the concept of our research.

Shredding – The process of tearing of

material into pieces.

Shred - A tiny or scarcely detectable

amount

CLASSIFICATION OF CUTTER

Cutter

Single cutter

Multiple cutters

SINGLE CUTTERLower maintenanceEasy for disassembly and

installation processEasy to clean.Less number of parts

MULTIPLE CUTTERSMore effective cuttingHeavy duty taskDifficult to maintain and clean

HISTORICAL BACKGROUNDThe first shredding machine was credited

to prolific inventor Abbot Augustus Low of

Piercefield, New York on 1884.

In 20th century, the shredders were

mostly used by government and financial

organizations; the Cold War provoked the

need of securely destroying all kinds of

documents in order to prevent them from

falling in the wrong hands and during this

time the market for paper shredders

grew dramatically.

SHREDDING MACHINE (INTERNATIONAL)

Adolf Ehinger's paper shredder, based on a hand-

crank pasta maker, was filed on the year 1988.

SHREDDING MACHINE (LOCAL)

SHREDDING MACHINE (LOCAL)

EXPERIMENTAL DESIGN (PROPOSAL)

PARTS AND FUNCTION

MACHINE PROCESSES USEDShredding Process

Tearing of material into smaller pieces in

preparation for recycling

Size / Volume Reduction Process

For volume reduction can simplify material

handling, minimize storage space and

reduce transportation and disposal costs

OPERATION

The papers and plastic materials are feed

into the hopper and falls down into the

cutter housing where rotating knives cut

the plastic waste against the fixed knives

The particles passes at the bottom part

of the machine and continues down

through the outlet and will collect

through the use of a rectangular basin.

HYPOTHESIS

Understanding output requirement will help in determining the desired output of the machine.

CapacityFeed typeOperational ConditionsMaintenance

CAPACITYCapacity is typically determined by

the amount of material to be shredded.

Capacity can be limited depending on the cutting chamber size.

We expect that the desired output capacity will not closely enough to the maximum capacity for long maintenance and operation.

FEED TYPE

Manual feed type is used in the operation. The machine has a hopper and work by either hand feeding the plastic and paper materials.

OPERATIONAL CONDITIONS

Productibility, safety and noise are major concerns in our machine.

Depending on the material, dust and airborne particles can be an environmental hazard.

Proper gearing on the machine to lessen the noise produced. Placing guards on belt and pulley, hopper and wearing safety equipment for safety precautions.

MAINTENANCE

Under normal used, fixed blades and blades that is attached on the shaft will be wear and require sharpening, adjusting, or if possible, replacing.

The shredder machine will endure stress when loads are big and maintenance is necessary to keep them running efficiently.

REFERENCES

http://www.ssiworld.com/applications/applications

2en.htm

http://www.technicopedia.com/fundamentals.html

http://ezinearticles.com/?History-of-the-Paper

Shredder&id=4365201

http://www.trinoble.net/paper_shredding/wikipedia_

aper_shredding_definition.htm