changeover time reduction case study: canned tuna ... · changeover time and leads to low...
TRANSCRIPT
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:
Changeover Time Reduction
Case Study: canned tuna manufacturing
E-mail: [email protected]*
Ornicha Anuchitchanchai
Department of Industrial and Logistics Engineering, Faculty of Engineering, Mahanakorn University of Technoloby, Bangkok
E-mail: [email protected]*
(Single Minute Exchange of Dies: SMED) 2
Seamer 28.60
10.10 24.78 16.60
SMED
Abstract
This study aims to improve efficiency of canned tuna manufacturing process by reducing changeover
time tin production process. To analysis the problem, it shows that setting up time for changing size and type of product in production process, as it has many works to be done, therefore it causes of long
changeover time and leads to low productivity. This research applies the principle of Single Minute
Exchange of Dies (SMED), purposing to reduce set up process and changeover time. After improvement for two machines, seamer machine and formatting machine, the result indicates that change over time of
those two machines has been reduced. For seamer machine, changeover time has been reduced from 28.60 minutes to 10.10 minutes. For formatting machine, changeover time has been reduced from 24.78
minutes to 16.60 minutes. Moreover, this improvement could be further applied to other production line.
Keywords: Productivity improvement, Waste reducing, SMED
1.
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7 (7-Wastes)
(Changeover Time) (Set up Time)
[1]
(Lot Size) [2]
(Bottle Neck)
Electriv Drive [3]
[4] [5]
2
(SMED) 3 4
5
2.
(SMED: Single Minute Exchange of Die)
(SMED) Shigeo Shingo [6]
10
SMED
2 (Internal Activity)
(External
Activity)
SMED 3
1. (Separate Internal and external setup)
2. (Convert internal to External setup)
3. (Streamline all aspects of the
setup operations)
(ECRS)
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0 10 20 30 40
Seamer setup
Format setup
line
key code
( )
3.
1 2
2g
kT
p m (1)
p k T m
Times New Roman 1
1
Code
Code 2
Seamer Format
Code
2
2 Code
4.
Code Code
Seamer
Format (Work Element)
4 1
- (Value Activity)
- (Non � Value
Actuvity)
- (External Activity)
- (Internal Activity)
1 Format
ONLINE
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1 67
2 ( 1,2) 3
3 2
4 1
5 2
6 ( 3) 2
7 2
8 2
9 3
21 Front Plate 4
23 L1/4 2
24 ( 8) 7
25 Turret Ring 1
26 Turret Ring 1
4.1
U
4.2
ECRS
2
3 19
5.
2 Seamer
28.60 10.10
For Mat 24.78 16.60 2-3
4-5
2 - Format
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16.95
11.65 11.23
17.37
6.3
3.8 3.63
6.47
0
2
4
6
8
10
12
14
16
18
20
3 - Seamer
( )
( )
( )
132 16.95 34 6.30 98 10.65
107 11.65 31 3.80 76 7.85
103 11.23 29 3.63 74 7.60
136 17.37 36 6.47 100 10.90
4
Format
5
Seamer
16.95
11.65 11.23
17.37
6.3
3.8 3.63
6.47
0
2
4
6
8
10
12
14
16
18
20
( )
( )
( )
113 7.38 77 4.12 36 3.26
160 17.40 120 12.48 40 4.92
160 17.40 120 12.48 40 4.92
113 7.38 77 4.12 36 3.26
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