Cloth Guider Control System

Chinthaka A.K.08/8554MSc in Electronics and Automation 2008

Cloth Guider• Cloth Guiders are quite effective in accurately correcting the Zig-Zag

movement of running web (fabric, leather, film) in stretching and removing the wrinkles

• Cloth Guiders are used in Textile Industry almost all stages of production– Winding– Rewinding– Cloth processing– Printing– Dyeing– Bleaching– Printing inspection– Batching

Cloth Guider Operation

Cloth Guider Operation Cont..

Types• Different Cloth Guider Types are– Mechanical Cloth Guider

• Cheapest• Has many moving parts• Require frequent service & replacement

– Pneumatic Cloth Guiders• Pneumatic cloth guider requires only normal compressed air with little

maintenance cost.• Can be used on chemicals, wet conditions• No chance of electrical shock

– Electrical Cloth Guiders < < My Project Focus• Electrical Cloth Guiders are working on 55/65 volts D.C supplied to its solenoid

Examples

Some Specifications

Electrical Cloth Guider Control System

• Sensors– IR sensors– LDR– Photo Diodes or Photo Transistors

• Actuators– Motor or Double Acting Cylinder

• Controller– Two relays are operated according to the sensory

inputs

Business Problem - TextPro Garment Specific

• Mechanical Problem– Fork Type IR Sensors had lesser length– So frequent out of order in sensing

• Electrical Problem– Frequent replacement of electronic control system part is required

due to device failures– Less Reliable in continuous run

Why TextPro Expects This

• Device Replacement Cost– Rs. 1,15,000 per device

• No place to buy this device in local market– Require to import each device from India

My Work

• To Provide – low cost solution– reliable product

Sensor Side Logic Design

TL084 Based Hysteresis Control Part

Final Design

PCB Design

Circuit Implementation

Circuit Mounted on Enclosure

Modes of Operations

• Manual• Auto

System Before bring to TextPro

Thank You