IRJET - Design Procedure and Impact of Fixed Type Automation for Billet Loading

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 07 Issue: 03 | Mar 2020 www.irjet.net p-ISSN: 2395-0072
© 2020, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 2330
Design Procedure and Impact of Fixed Type Automation for
Billet Loading
Prof. K.K.Powar1, Shubham Banne2, Swapnil Sangar2, Sarang Lokhande2, Sumit Warke2
1Assistant Professor, Dept. of Mechanical Engineering, DKTE’s Textile and Engineering Institute, Ichalkaranji,
Maharashtra, India
24th Year Mechanical Engineering, DKTE’s Textile and Engineering Institute, Ichalkaranji, Maharashtra, India
---------------------------------------------------------------------***----------------------------------------------------------------------
Abstract – Present forging industries having certain issues.
Continuous demand and various challenges forced
industrialist and forgers to replace their current forging
method with automation. As forging industry is having high
temperature operation. It is having high risk operation at
various stages now automation is taking place. Automated
loading enables manufactureofforging withenrichedthermal
accuracy with large quantity withreasonablecost. Mechanism
of loading of billet in forging industry increases the possession
of this technology and offers many benefits to forger through
various ways such as economical technological andecological
as manufacturing trends and technologiesarechangingasper
demand supply management. Every industry tries to working
with automation problems like cycle timereductiondeficiency
of efficient and skilled work labour. Even if country like India
cheap labour is available many problemsoccursduetohuman
operation. So, automation isnecessaryinrapidandcontinuous
manufacturing. The project we have to work with is having
similar kind of continuous operation of loading so we decided
to make fixed type of automation.
Key Words: (Size 10
1. INTRODUCTION
Billet loading is very prime necessity of every forging
industry. In conventional loading machine there are human
operators to load the billets. This includes small industries
also large industry of forging. Also, some different purpose
like Inspection lines, Sorting lines. Conventional loading
process involves gravitational slider to which efficient
manual loading is required. Who can manage proper timing
of loading billet for initial heating stages, so it is better to go
with automation otherwise problems regarding thermal
stresses, improper heating of billet is observed. Instead of
billet, small rods, bars can be loaded to elevated platform.
2. PROBLEM STATEMENT
Local industry selected to work on, was facing some issues
regarding billet loading for furnace. Lack of efficient labor is
found labor charges getting higher relative to work,
maintaining cycle time was difficult to maintain by
gravitational slider mechanism & also it affects line
efficiency. Thermal stresses created due to overheating
which not supposed to exist.
2.1 Billet Specification
Billet is prime product of machine, so it is necessary to
understand its dimensions.
Maximum Billet sizes taken for reference.
1. Diameter: up to 26mm
2. Length: 150mm
3. Material: Stainless Steel
4. Temperature required to heat: Up to 1500 F
5. Time for heating billet: 6-7 sec.
Fig -1: Billet
2.2 Working Condition and Requirements
For selection of mechanism for billet loading in furnace it is
necessary to understand current system.
1. Furnace height 800mm from ground.
2. Hooper size demanded: 1000 Billets per loading.
3. Working hours: 6 × 24 (Days × Hours)
4. Single billet per loading is necessary.
5. Total stroke length: 700mm.

Fig -2: Conventional loading
3. TYPES OF LOADING
In current designed system within all the loading types
certain loading methods areappropriatetheylistedasbelow
1. Bucket conveyor
2. Pocket elevator
3. Vertical conveyor system
4. Step feeder
4. DESIGN SYSTEM
For above mentioned billet specification & working
conditions, bucket conveyor step feeder was suitable.
Automated billet loader should work for continuous cycles
(6× 24) bucket conveyor found with many issues regarding
maintenance for continuous operation, so step feederisbest
mechanism for carrying billet. Total elevation (height of end
of Hooper to furnace is 685mm) is substituted in little
portions of (114.5mm) that mean it divided into 6 steps.
Further process is described in given flow chart
5. WORKING PRINCIPLE
Hooper is container that store processing component
required. Hooper should be capabletohandle1000billet per
loading. Further as above-mentioned billets gets load
singularly by step feeder billet loaded on conveyor. If
accidently more billet gets loaded goes to conveyor it
provided with two provision guide plates & side way.
Conveyor carries single billets in one direction. Conveyor is
with 50 rpm & having length 2205 mm. Single billetloader is
a mechanism with pneumatic pushing programmedfortime
7 sec time. Tilted base load it on angle which is go through
furnace. Total length of this angle is 700 mm.
Flow Chart -1: Process
6. TORQUE CALCULATION OF STEP FEEDER FOR
MOTAR SELECTION
1. Mass of moving plate & attaching plates
creates major normal force (M)
Total mass (M) =97.35 kg
2. Total weight (W = F) = M × g
= 955.0035 N
3. st s t t 5 s ts s s
need to be taken,
= F s θ
= 955 sin (15)
= 922.45 N
4. Maximum moment occurs at force to
center of gravity.
Assumed point of center ofgravity
occurs at middle plate center
because of its self-weight &
position.
Length of center plate (L) = 805mm
C.G at plate (L) = 805/2
= 402.5mm
5. Max. Torque(T) = F × L
=922.4591 × 402.5
= 371289.78 N-mm
= 371.289 N-m.
From Catalogue nearby value,
T= 407 N-m.
7. CALCULATION OF PNEUMATIC CYLINDER
To push billet into furnace or to remove it, is necessary to
happen within fixed time and without manual intervention
should not occur so appropriate cylinder have to select.
In current mechanism steady load of billet is only load for
pneumatic cylinder to push. Sothereis nomajorthrustforce.

P = F / A
As,
P = Pressure
F = Force (weight of billet)
A = Cylinder area.
F = 0.632 × 9.81
= 6.2 N
P = 6 bar
By considering safety factor 1
So A = 10.34 square mm
Diameter (d) = 3.6mm
This size is so small commercially not effective so
80mm cylinder is used, excess force produce by it controlby
flow control valve.
Fig – 3
8. NECESSITY OF MATERIAL SELECTION
As mentioned above current mechanismhavinglargearea in
continuous contact if material like steel is used maintenance
will be higher due to wear so material should with stand
high wear and abbreviation.
9. SELECTED MATERIAL AND REASONS
1. EN 31 is a good quality steel used for high frictional
surface like press tool machine
2. Ball and Roller bearing spinning tools bending rolls,
punches and dies by its character this type of steel has
high resisting nature against wear
Table -1: Chemical composition of EN31
Carbon 1.05
Silicon 0.335
Manganese 0.54
Sulfur 0.0339
Potassium 0.028
Chromium 1.4
Molybdenum 0.0132
Nickel 0.0705
Aluminum 0.0267
Cobalt 0.0124
Copper 0.12
Table -2: Mechanical composition of EN31
Bulk modulus
(GPa)
140
P ss ’s r t 0.30
Shear modulus
(GPa)
80
Elastic
modulus (GPa)
190
Density
(kg/m³)
7.8
10. RESULTS
1. Manual intervention neglected. Three p rs ’s works for
single operation at different shifts working with human
efficiency observed around 80%.Alsothisefficiencychanges
with respect to shift duration. Some injuries occurs while
loading it neglected totally.
2. Cycle time maintained. Study showed very goodresultsby
automating system which is of 6-7 sec maintained by PLC
program.
3. Thermal stresses induces due to uneven heating it
maintained.
4. Productivity increased & constant throughout all the day.
Table -3: Per shift no of billets completed
Shifts
conventional
loading
Automated
system
Morning 3500 4000
Midday 3000 4000
Night 2500 4000

Chart -1: Comparison chart
11. CONCLUSION
Automation in billet loading is fixed type automation.
Designed mechanism (Plate Step Feeding) is appropriate for
continuous loading. With these mechanism Manual errors,
efficiency losses & economical losses are avoided. Following
goals achieved by automation like cycle time maintained
labour cost saved. Due to continue operation EN31 is
selected for high frictional surface in mechanism. Motor is
selected by calculating torque as mechanism runs at high
load condition (self weight).
REFERENCES
[ ] Gh z A u T h r’ (M r h3,20 4)Aut t fM t r
Handling with Bucket Elevator and belt conveyor. ISSN
2250-3153
[2] VemuriLaksminarayana (July 13, 2015) Influence of
Varying Load on wear rate and Frictional resistance of EN-8
Steel Sliding against EN-31 Steel. ISSN.1819-6608
[3] Kunal Chopra (December 18, 2018) Detailed
Experimental Investigations on Machinability ofEN-31Steel
by WEDM.
[4] Spartak Ljasenko (November 04, 2016) A Comparison of
the Manufacturing Resilience between Fixed Automation
Systems and Mobile Robots in Large Structure Assembly.
Procedia CIRP 57 (2016) 235 – 240
[5] D. Chakradhar (June 2, 2011) Multi-Objective
Optimization of Electrochemical MachiningofEN-31Steel by
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BIOGRAPHIES
Mr. Shubham S. Banne.
4th Year Mechanical Engineering,
DKTE’s T xt E r
Institute, Ichalkaranji
Mr. Swapnil C. Sangar.
DKTE’s T xt E r
Mr. Sarang S. Lokhande.
DKTE’s T xt E r
Mr. Sumit S. Warke.
DKTE’s T xt E r

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