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UNIVERSITY OF GAZIANTEP DEPARTMENT OF MECHANICAL

ENGINEERING

ME 482

(_RAPID PRODUCT&DEVELOPMENT_)

SUBJECT : Designing Study of Chop Meat Machine

SUBMITTED TO : ASSOC.PROF.DR.OĞUZHAN YILMAZ

SUBMITTED BY : OKAN UTANGAÇ

EMRE KARACA

İLKER ERDEM

ERDİ KARAÇAL

AUGUST 2013

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CONTENTS PAGES

INTRODUCTION 2

CHAPTER 1 3

1.1 BRIEF DEFINITION ABOUT OUR PRODUCT 3 1.2 POTENTIAL IN THE MARKET 4 1.3 ADVANTAGES OF OUR PRODUCT 5 1.4 COMPONENTS OF OUR PRODUCT 6

CHAPTER 2 7

2.1 MANUFACTURING METHODS OF COMPONENTS 7

2.1.1 ARMOR BLADE 7

2.1.2 TWO STEP CRANK 8

2.1.3LINEAR BED 8

2.1.4 ELECTRIC MOTORS 9

2.1.5 BEARINGS 9

2.1.6 CHASIS 9

2.1.7 TABLE 10

2.1.8 MEAT COLLECTION PART 10

2.2 LAYOUT PLANNING 11

2.3 MECHANISM OF OUR PRODUCT (HOW IT IS WORK) 12

CONCLUSION 14

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INTRODUCTION

Humans have hunted and killed animals for meat since prehistoric times.We have eaten meat for years to get protein. Meat is prepared in many ways, as steaks, in stews, chopping meat etc..

In our country there are so many types of foods which has consist of meat.In this century chopping meat is generally done by machines.

Our previous country OTTOMAN EMPIRE is famous with its foods which has consist of meat.And the Chefs who lived in Ottoman Empire were chopping up the meats with armor blade.(zırh bıçağı) It is directly translated from Turkish to English.The Chefs who lived in the Empire’s Palace said that if you use armor blade to chopping up the meat, it will be very delicious.

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CHAPTER 1

1.1 BRIEF DEFINITION ABOUT OUR PRODUCT

Our product is designed based on the Chef’s words.They say that if you use armor blade to chopping up the meat, it will be very delicious.In the figure 1 there is a man who chopping up the meats by using armor blade.As it seen that this is not hygienic.So that we want to produce a machine which can be chopping up the meat by yourself not man powered by electric powered machine.And we design chopping meat machine.

Our product is new machine.We didn’t improve any machine which is already exist.We have found and design new type of machine. İf you ask what can I do with this machine and where can I use this machine, its answer is ; We can use our machine for cutting meat and we can prepare some foods with our machine.

Figure (1)

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Design of our machine is based on this Picture as shown in figure 2.In thıs � roject, there are mans who cut the meat with their hand power. We want to improve this idea, in our � roject

Figure (2) The Chefs

1.2 POTENTIAL IN THE MARKET

In our culture meat is important food,so that there are a lot of butchers in the every street of our cities.

Our plan is selling this product for all butchers.We can sell the product for butchers.

Our another plan is selling this product for some restaurant, and otels because hotels have kitchen where they can chopping up the meat.

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1.3 ADVANTAGES OF OUR PRODUCT

İf you want sell your product in Pazar,your product must have some advantages from other product.

There are so many types of chopping up machine are exist as said in the introduction part of our report.For example when we investigate the products , their working princible are based on ,there is a motor and motor rotates the shaft and due to the turning of the shaft meat are going into the bed and they will chopping up with the using of turning blades.As it seen in the figure (3) it Works with the man power and in the figure (4) chopping up machine with electric motor.

Figure (3) Man Powered Chopping up Figure (4) Automated Chopping up Machine

Delicious food can be cooked by using our product.

Meat which is chopping up by our machine can not be like dough.

We can maintain the tradition of Ottoman Empire’s Chef’s when using the our machines.

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1.4 COMPONENTS OF OUR PRODUCT

CAD modelling of our product is shown in figure (5).The mechanism of our product is not complex.It is basically consist of some important parts.

Basically some parts will be defined about which type of production method is using and how we can produce this product.

Chasis

Armor Blade (zırh bıçağı)

Electric motors

Table

Bearings

Belt,Screws,Rivets,Linear Bed and wheels.

Figure (5) CAD modelling of our product

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CHAPTER 2

2.1 MANUFACTURING METHODS OF COMPONENTS

2.1.1 ARMOR BLADE

Material of knife must be stainless steel to resist the corrosion.Because armor blades are used to chopping up the meats and so that knives must have resistance to corrosion.It can be consist of %5 carbon content.Generally %5 carbon steels are used in manufacturing knives.When manufacturing the armor blade heat treatment must be applied to provide necessary hardness value.

Figure(6) CAD modelling of armor blade

Hot steel material comes to mold and then pressing operation will be applied to produce.

As it seen in the figure(6) our armor blade has two holders.They don’t have to produced when the applying pressing operation.After pressing the shape of armor blade , the holders can be drilled and jointed by stainless steel bolds.

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2.1.2 TWO STEP CRANK

This is the most important part in our product.It is used to convert the motion rotational to linear.Crank is designed as two step.Because there are two arms provides the armor blades motion and these arms are not be in touch with each other.

This part can be produced by using sand casting method and then it can be machined by CNC machine. That is not necessary to give information how to mold this part.It is already known that from our previous lecture of process 2.

The cost of our product was considered and we have decided to buy this component from another company as a raw material.Then machining operation can be done in our factory with CNC machine.

Figure(7) Two Step Crank

2.1.3LINEAR BED

That is the another part which our product has.The importance of this part is that the table of our product can be move on it from backward to forward.Moving the upward chasis is important for us.Because when we move the upward chasis armor blade can also move with it, and this motion gives us good chopping up the meat from every point on it.

Figure(8) Linear Bed

We have 2 linear bed on the each side of our product.On the linear bed the upward chasis of our product will move easily.

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2.1.4 ELECTRIC MOTORS

2 electric motor must be assembled to on our product.One is used for moving the crank and so moving the armor blade upward and downward.And the other one is used to control the table mechanism.

We don’t have to produce this products.We can buy them from another factory which sells electric motor.There are so many motor factory which they have good product.Only we say that required motor power to them and we can order the product.So that manufacturing steps of electric motors are not necessary to explain.

2.1.5 BEARINGS

Three bearings must be assembled to on our product.The two of these bearings are used on the crank and motor mechanism.They are used to fix the crank on the motor shaft.And the another bearing is used to downward motor to fix the pulley to the chasis.

Again we don’t have to produce this products.There exist products of bearing which the big bearing companies are selling.Only we can order from them.Of course the bearing loads must be evaluated and the best selection of bearing must be done.Otherwise our machine will be failure.

2.1.6 CHASIS

Another important part is chasis.All operation will be done on it like chopping up meats.This part will carry all components of our product so that steel profile is used to produce this part.Simply if we need to tell ,Steel profiles come to our factory and they will be cutting to desired size and then welding operators can weld the parts each other.And finally it will paint to resist to corrosion.As it seen that in the figure (9) chasis of our product

Figure (9)Chasis of our product

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2.1.7 TABLE

Another important part of our product is the table.It is important because all operation performed on it.The material of table is another important consideration during the design research.There can be choices for selecting the material of table like polyethyle or wood.In our product we select wood as a material of table.Because it is cheap and we can buy it from another company.Also we don’t have to produce this part.We can order from the wood companies.They can buy us the ordered and desired size of their product.

Figure(10):CAD modelling of table

Our table have to holders.They must be on the table and the holders must have the screw threads.The downward motor drives this tablet o move forward and backward.The motor rotates the belt and belt is fixed to a long screw and when screw is turning table is going forward or vice versa.

2.1.8 MEAT COLLECTION PART

Another important part is meat collection part.As understood on the name of our part, it collects the meat on the center of the table.Two meat collection part is necessary on the double side of the table.They will contact with the meat so that their material must be stainless steel to resist to corrosion and health requirement.

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We can produce this parts by using pressing operations.Sheet metals are coming under the pres and then required power is evaluated to form the sheet as desired.It is not necessary to explain the how to press is doing or forming.We have already knowledge about this processing methods from the previous lectures.

We have need two meat collection part.One is for right hand side of table and the other for another side of the table.And They must be fixed to chasis to prevent meat escape.

Figure(11) Meat Collection Part

2.2 LAYOUT PLANNING

We have designed a product and then if we want to produce our product we can build a factory.And to do this we must be consider some points.What type of layout can we use for manufacturing this product.Simply we prefer product type of layout which we have already known that from previous lectures.

Figure (12):Factory Planning

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2.3 MECHANISM OF OUR PRODUCT (HOW IT IS WORK)

There is a motor at the upward chasis as it seen on the side view as it is blue one.When this motor is working ,it rotates the crank and crank converts its rotating motion to linear motion with the arms. This linear motion provides that knife goes to upward and downward. Crank is designed as two step.Because there are two arms and these arms can not be in touch each other.

Top View

Side View

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There is an another motor at the downward of the chasis.It drives the pulley and there is a screw attached to pulley.When motor is working screw is rotating.Due to this , table moves forward and backward.Two motor is working simultaneously.

There two sheet metal which also called as meat collector.They are provide to collecting meat at the center of table.

Front View Projectile View

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CONCLUSION

Through this Project We have already learned that designing something is very hard business.Being an engineer is also very hard business.There are so many parameters which have to be considered when designing something.Another point is manufacturability of our designing.

Idea is the most important thing when designing something.Products have been designed from centuries only the purpose of simplifiyng the human life.We must observe our environment to find good ideas.

When idea is ok.Another points are comes from then.Modelling of product , analyzing of product, material selection of product etc.. so many parameters are going into each other.

This Project were very useful to us.We have learned so many things and revise our backward knowledge.

In our future life maybe ,one day ,we will design a kind of product.And this lesson comes our mind…