Working principle of jacquard machine

Working principle of jacquard machine;

On the jacquard machine, the flower plate is sleeved on the flower tube, one flower plate is turned over every weft, and the flower tube presses the horizontal needle once. When there is a hole in the template, the head end of the horizontal needle extends into the holes of the template and the needle cylinder, so that the hook end of the straight needle is still hung on the knife. When the lifting knife rises, the straight needle rises with it, and the heald is driven to rise through the first thread hook and heald. At this time, the warp yarn passing through the heald eye also rises, forming the upper layer of the shed. The heald hammer is hung in the lower heald ring of the heald. When the shed is closed, the heald can recover by its own weight. When there is no hole in the pattern plate, the horizontal needle pushes the corresponding straight needle backward through the convex head, so that the hook end of the straight needle is separated from the lifting knife, so that the heald and warp yarn connected with the straight needle are not lifted, and the warp yarn sinks below to form the lower shed layer. Therefore, the movement of each warp yarn is determined by whether there are holes in the pattern plate, and the holes in the pattern plate are rolled according to the design requirements of the pattern and weave, so the movement of the warp yarn also meets the requirements of the pattern and weave.

Jacquard technology originated from the original waist loom and was used in oblique loom and horizontal loom in Han Dynasty. In the Eastern Han Dynasty, the jacquard machine with flowers as the main part appeared, also known as the greenhouse. It is the representative of the highest achievement of ancient textile technology in China. Jacquard machine was introduced to the west through the Silk Road, which is instructive to the invention of program control and storage technology in the development of modern electronic computers.

Operating procedures:

1. When maintaining, you must first press the left and right red stop buttons, indicating that the machine is under maintenance.

2. It is forbidden to cross the guardrail. Go up and down the stairs slowly and carefully to avoid slipping.

3. It is forbidden to remove the cross bar of the corrugated board to cross the bridge, and hang the gantry on the ground at will to roll, which will damage the equipment and the car stopper.

4, tools shall not be placed at will, in case of accidents caused by falling off during operation.

5. When the safety baffle needs to be moved due to maintenance, it should be restored in time after maintenance.

6. When the machine is turned on after maintenance, the local train should run for more than 2 weft, and the express train can run only after it is confirmed to be normal. Only when the fabric quality is normal and the equipment runs normally can you leave the maintenance machine.