Material passage diagram of carding machine

 

Fig.Material passage diagram of carding machine

 Feed roller-taker in zone: From the feed arrangement, the chute mat is pushed into the working zone of the feed roller-taker in. The chute mat is opened to tufts by the taker in wire through combing action.

Taker in-cylinder zone: From the feed roller-taker in zone, the opened tufts are transferred to the taker in-cylinder working zone for opening to small tuft size. For cleaning, the material is passed over grid equipment and mote knife attached the underside of taker in. Here points are in face to back arrangement. Suction ducts carry away the waste from trash box.

Cylinder-Flat zone: The small tufts are then transferred to cylinder-flat zone and opened up into individual fibers which are defined as the actual carding process. Here points are in face to face arrangement. Neps are removed in this zone. The flats comprise 80-116 individual carding bars combined into a belt moving on an endless path and approx. 30-50 flats are active to the main cylinder. The rest are on the return run. During this return, a cleaning unit strips fibers, neps and foreign matter from the flat bars.

Cylinder-doffer zone: After the carding operation, the cylinder carries along the fibers s that are opened to single and loose condition as well as lie parallel without continuous structure. For the purpose of forming a continuous structure of the carded single fibers s the doffer is required. The doffer combines the fibers s into a web. Here points are in face to face arrangement