Presentation on theme: "MU 7 Mak Fu Shun Kong Yau Choi Lee Man Kit Poon San On Zen YKK Project: Automatic adhesive machine."— Presentation transcript:
MU 7 Mak Fu Shun Kong Yau Choi Lee Man Kit Poon San On Zen YKK Project: Automatic adhesive machine
Introduction YKK Hong Kong Limited established in 1966. YKK Hong Kong Limited established in 1966. As a subsidiary of YKK Corporation. As a subsidiary of YKK Corporation. One of the biggest corporation in producing and selling zippers. One of the biggest corporation in producing and selling zippers.
Introduction Co-operate with YKK Co. to design an extended automatic adhesive machine. Co-operate with YKK Co. to design an extended automatic adhesive machine. Existed Automatic adhesive machine
Introduction YKK Co. now can only stick the tape onto the middle region of the box. (Easier task) Our job is to design a machine to stick the other two sides. (More complicated)
At this region, here are the 2 adhesive machines given from YKK, which are not shown to reduce complicated drawing. The cylinder with a plate to push the box forward. The result are like above, only half is attached! Initial Design 1
Each set has 2 cylinders, first the horizontal ones extends to touch the box. Initial Design 2
BOM Two Adhesive machines Two Adhesive machines 9 Cylinders 9 Cylinders 6 linear bearings 6 linear bearings 22 Sensors 22 Sensors 1 PLC model 1 PLC model 1 Touch Panel 1 Touch Panel Long/Uncut Profiles, Cables … Long/Uncut Profiles, Cables …
Planning of works 1. Profiles cutting & Surface finishing ~1.5 weeks (due to change of design) 2. Holes drilling ~5 days 3. Construction of frames ~2.5 days 4. Mounting parts for cylinders installed on frame ~2 weeks 5. PLC & Touch Panel Programming learning ~ 1.5 days 6. Simens PLC Programming Simulation and testing ~ 3 days 7. PLC programming drafting ~1.5 days 8. PLC programming design ~3 days 9. Touch Panel programming design ~2.5 days 10. Testing & Debugging on working condition of touch Panel connecting with PLC. ~2 days 11. Installation & connection of PLC, Touch Panel and solenoid valve using cables ~3 days (PLC & TP finished by 24 June.) 12. Website making ~1.5 weeks, continuously 13. Modification on the design ~1 week 14. Whole machine testing and debugging ~2 days
Milling Machine Drilling holes - Center Drill - corresponding dia Drill, E.g. 6 mm dia Drill (different sizes) - 26-mm dia Drill - Boring tool Drilling holes - Center Drill - corresponding dia Drill, E.g. 6 mm dia Drill (different sizes) - 26-mm dia Drill - Boring tool Cautions Cautions
Milling Machine Milling Surfaces - Milling Cutter (different sizes) Milling Surfaces - Milling Cutter (different sizes) Cautions do not mill deeply & too fast Cautions do not mill deeply & too fast
Sawing Machine Cautions - adding cooling liquid Cautions - adding cooling liquid Increase the smoothness of the surface - cutting error shorter milling surface
NCM Workshop Electro-Discharge Machine (EDM) - Wire Cut Electro-Discharge Machine (EDM) - Wire Cut (the shaft is too hard) (the shaft is too hard) Cautions - Flammable Liquid Cautions - Flammable Liquid
Difficulties in Machining High Precision -squareness -same length High Precision -squareness -same length Some holes are too big to drill Some holes are too big to drill Linear bearing shaft - too hard (strong steel) Linear bearing shaft - too hard (strong steel) Thread not matched Thread not matched - Straight Adaptor does not fit cylinder provided by YKK - Straight Adaptor does not fit cylinder provided by YKK
System Control Pneumatics /Cylinders Pneumatics /Cylinders Connect to output devices Both Input & Output Sensor Connect to input devices Connect to Touch Panel Solenoid Valves
Why use PLC? Cost effective. High stability and flexibility. Can work under adverse environment. Easy programming. Plenty input and output addresses, moreover extendable.
Input & Output addresses 24 Input Addresses (All used) 000: Touch Sensor 001: Retraction sensor of Long Cylinder. 002:Extension sensor of Long Cylinder. 003-010: Built-in sensors of Cylinders. 011: Big Box button. 100-107: Built-in sensors of Cylinders. 108-109:External Photoelectric Sensor. 110: Start Button 111:Reset Button 16 Output Addresses: (10 used) 1000-1100:Cylinders 1101: Blocking unit
Input/Output Table for PLC StepPre-conditionPractical Output 1110(start) pressed000-Touch sensor (TS) is turned on and ready for use. 2000 is triggered by box 1000(LC) is set, 1001-1005 are reset. 3108 (RS) senses from 0 to 1 when box passes in 1001,1002 are set (rotate 180 )
Conclusion We have learnt We have learnt - How to apply our knowledge & study on practical tasks. - How to communicate and co-operate with companies. - Dealt with variable difficulties.
Conclusion - Better understanding on IC workshops. - How to put ideas into reality. - Importance on effective planning of work. -Many mechanical knowledge, technological products, and programming. -Many mechanical knowledge, technological products, and programming.
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