Epoxy Dispenser Machine Dispenser Part. Design Objectives 1. To increase the productivity 2. To improve the quality of products 3. To simplify human work.

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Presentation transcript:

Epoxy Dispenser Machine Dispenser Part

Design Objectives 1. To increase the productivity 2. To improve the quality of products 3. To simplify human work by automatic control

Design Considerations Easy to assembly Easy to clean Easy to have maintenance User friendly Economical Effective production

Marketing Products 5000 桌上型 雙液自動混合機 6000 型 雙液自動混合機 7000 型 雙液自動混合機

Design 1 Specification of Design 1: Three dispensing heads Easy to clean through one main channel Simple to just fill one mixing tank

Design 1 Use one tank then diversify three syringe heads to fill  Hard to maintain the same pressure and flow amount of each head Imperfect product would be the result

Design 2 Specification of Design 2: Easy to assembly by rivet system Easy to clean as using plastic bag to wrap the surface Easy to disassembly by loosening the rivet for cleaning

Design 2  The flow of epoxy may not be easy without the sliding angle The rivet pattern will be loosened by frequent use.

Design 3 Specification of Design 3: Modification of Design 2 Easy flow for the epoxy with a sliding angle in the tank Reliable screw system for easy assembly and disassembly

Operation  Mixing of resin and hardener in a tank  Pouring the epoxy into the rubber tank  Control the PLC to open the valve  Appropriate amount of epoxy is ejected to fill the coil

Cost Estimation Regulator/ Pressure gauge~$155/pc Safety valve ~$100/pc Plastic tank~$50/pc Surface tank (with cover and lock)~$250/pc Screw~$50/100pc Disposable syringe~$125/100pc Rubber ring~$50/25pc Stainless Steel~$7/lb Gas cylinder~$200/pc

Epoxy Dispenser Machine X-Y table Part

X-Y table Objectives Provide one degree of freedom Precise movement for dispensing Sensors detected the positions Afford a loading of supporting 9 largest size transformers and the container Controlled by PLC

Available Product on the market Conveyor x-y table in Lathe machine

Comparison of the products Conveyor -lower cost -suitable for continuous process -using servo-motor and controlled by PLC -inflexible for different kinds of transformers

Conveyor cost estimation Model No.Bed Width Belt Width WeightPrice Ea. BMV-1819"18"260 lbs.US$ lbs.US$1550 BMV-2425"24"296 lbs.US$ lbs.US$1675

x-y table in the Lathe machine -expensive -using servo-motor and controlled by PLC -suitable for all kinds of transformers by change the container

X-Y table cost estimation MICROLUX X-Y TABLE ATTACHMENT Item Number:82389 List Price US$ Specifications (inches): Table Size:8-1/4 L x 2-3/4 D Overall Size:10-1/2 L x 7-1/2 D x 1-11/16 H Base Size:3-3/4 x 5-1/2 X Direction Travel:5-1/4 Y Direction Travel:1-3/4 Dial Graduations:.001;.050 per revolution Ares.asp?MerchantID=RET01229&Action=Catalog&Type=Product&ID=82389

Our Design similar to product 2 Upon the above comparison, we choose product 2. -not for continuous process -suitable for various types of transformers -precise position controlling by using servo-motor and PLC

X-Y table and PLC estimated cost X-y table~$3000 PLC~$2000 Profile ~$200/each

Maximum Loading 9 transformers for the largest one Total weight of transformer: 1.468kg X 9 pieces = kg The largest volume filled with epoxy = Total weight of epoxy filled into the space = kg The weight of the fixture = 7.5kg Therefore, the predicted weight is about kg

Working Procedure-1

Working Procedure-2

Working Procedure-3

Working Procedure-4

Working Procedure-5

Working Procedure-6

Working Procedure-7

Working Procedure-8

Working Procedure-9

Working Procedure-10

Working Procedure-11

Limitation of our design Only two sizes of transformer would be prepared for the operation. Translation of the transformers is needed. Air bubble may be formed during the process.

Preparation work for fixture  Install the fixture for the desired type of transformer onto the x-y table  Place the transformers on the fixture

 The fixture moves from the initial position  The fixture moves along the x-table designed to where to dispense  The valve would be opened by the signals given by PLC. Normal Operation Steps

The epoxy will start to flow from the dispenser to fill the inner core of the transformers. The PLC would give the signal to control the valve and stop the dispensing process.

Normal Operation Steps Upon the dimensions of the fixtures, the fixture will move and stop several times to fill all transformers on the fixture with epoxy

Normal Operation Steps After all transformers are filled, the fixture will move to the end of the x- table. The transformers will then be available for the workers taking to the oven.

Specification estimation Filling time: 30s / each transformer Cleaning time: 15 mins Setup time: 5 mins