Polythene Automatic Sealing and cutting
machine is a machine that is used to seal and cut polythene into
different sizes depending on the required dimension. Polythene is a type
of synthetic rubber widely used often as transference sheets for water
proof packaging. The sealing machine is one of the most important
fabrication of engineers of the 20th century, the achievements led to
sweet relieve for Agriculturist, industrialist, marketers etc. for this
purpose, the production of Agricultural and industrials, goods which
need appropriate attention for packaging and storage has been on the
Traders in the market require Polythene
bags in packaging commodities for their customer. The same material can
be made in various shapes as long as packaging of goods is concerned.
There is obvious need for diversification of the Nigeria economy. We can
start by producing some simple machine so that scare of foreign
exchange can be conserved for more need and essential goods.It will also
enable Nigerians manufacture to expand their industries there by making
price of products relatively cheaper compared with the imported ones
and are affordable to majority of Nigerians.
Developed countries like Japan started
by producing simple machine using the abundant local raw material for
the manufacture of goods can also be exported in order to earn foreign
exchange rather than exporting the raw material.There is great need to
improve on the technological advancement in the country since, she is
blessed with abundant material and human resources which need to be
tapped for useful purpose. In plastic industry the machines that are
required to process goods into usable products can still be manufactured
Previously, the packaging system was
done by the use of paper, clothing material, etc. These methods are
either given way to cellophane packaging system. Different types of
packaging system emerged owing to the facts of invention of which the
most commonly used is the cellophane and polythene packaging and
sealing. It has the following advantages; low cost of production, high
resistance to acid attacks, inertness, corrosion etc. polyethylene is
used in packaging goods like ice cream, umbrellas, exercise books, pure
water, beverages, weavon, packet shirt, bread, biscuits etc. the
following properties polyethylene possessed are the reasons for its
varieties of purpose that is to say how the cost of production,
inertness, resistance to acid, and corrosion water.The use of polythene
cannot be overemphasized. Most of food packaging is for hygienic
reason(s). The technology of cellophane permits raw materials of textile
industries to be carried with sealed polyethylene the finished products
are either marketed or exported with polyethylene packaging. Most
utensils are packaged with polyethylene. Special polyethylene materials
have been a safer conveyance of glass and ceramics materials, especially
for transportation and exportation of finished goods.
Also, it is in packaging most of
electronic gadgets which includes; computers, amplifiers, calculators,
radio and T.V sets etc. for safety purposes. It will be needless talking
about polyethylene without talking about the machines used in sealing
generally. Some of the machines used in the industries include
cellophane sealing machine used in sealing polyethylene materials,
pneumatic, electrical sealing machine handled by electrical heater and
needle point action and hand sealing.
1.1 AIM AND OBJECTIVES
The aim of this project is to design and
fabricate apolythene sealing machinecapable of sealing a wide range of
polythene materials using locally sourced, readily available and cheap
The objectives of this project are as follows:
- To accurately get the polythene sealing machine to function manually (with the use of legs for sealing).
2. To provide a polythene bag
making machine in which a narrow seal may be formed along the bottom of a
polythene bag with no waste of material beyond seal.
3. To further understand how the
variable process parameters of the heat sealing process affects the
quality of seal of the package (a polythene bag, cellophane etc.).
4. To acquire innovative engineering skills in the course of carryout this project.
1.2. PROBLEM STATEMENT
From researches and studies carried out,
it was discovered that most of the polythene sealing machines cause
electric shocks which has marred the continuous use of this kind of
sealing process.Also, the cost of an average polythene sealing machine
is high and as a result, this project aims to produce a polythene
sealing machine which can be afforded at a cheaper rate.
Finally, the unavailability of a
polythene sealing machine in the Faculty of Engineering, Delta State
University, Abraka, Oleh Campus has made the teaching and learning
process of the subject much more difficult; which this project seeks to
When a Polythene Sealing Machine
connectedto an electric power supply (220 volts) it leads to shock due
to high static charges being supplied. These static charges attract
lightweight dust from the filling surface into the internal surface. In
particular, contaminants get into the seal which prevents effective
sealing and is not cosmetically acceptable to the end user. This
prevents proper sealing of the film, resulting in expensive machine down
time and poor product quality.
1.4 SIGNIFICANCE OF STUDY
Polythene sealing machine is applicable
for various daily activitiessuch as production of plastic bags which are
used every day. Hence, this machine is significant in the following
- It has a simple structure adopting the pedal control sealing type mechanism
2. The machine has the ability to cut while sealing.
3. The heat of for sealing can be regulated using a temperature regulator/control knob.
4. The machine also can be used in combination with the shrinking machine for tableware and other things.
5. The machine has good sealing effect and it is easy to operate.
6. It has adjustable sealing time makes this heat sealing machine more efficiency.