Structural features of the stenter setting machine and the role of each unit

- Nov 15, 2019-

The stenter setting machine is mainly composed of five parts, including the feeding part, the weft feeder, the chain, the oven body and the falling cloth winding device. There are also chemical systems and oil furnace heating systems.


1. Loading part.

The structure is relatively simple, consisting of a trough and a roll. The cloth enters the trough, carries the chemical material, and then presses the excess chemical material through the roll to clean it. Therefore, the chemical material on the cloth is very uniform, which is a prerequisite for obtaining high quality styling cloth.

It should be noted here that it is necessary to always pay attention to whether the pressure on the left and right sides of the roll is consistent. Otherwise, the side with less pressure will be loaded more, while the side with higher pressure will have less material, and the cloth will have quality problems such as inconsistency.


2. Weft feeder.

The weft aligner on the fixed machine is the Mahlo RFMC94H photoelectric weft aligner. There are four sets of sensors on the Mahlo photoelectric weft aligner. Each sensor consists of two parts: illuminating and sensitizing. . The action part adopts a hydraulic system. When the signal of the slanting size is transmitted back to the control board, the control board will issue a command to drive the hydraulic system to adjust the angle of the curved roller or the straight roller to correct the weft. Specifically: when the center of the cloth is different from the two sides, the curved roller will move; when there is a difference between the left and the right, the straight roller will move.


3. The chain part.

The tenter of the cloth on the setting machine is produced by a chain. The chain of the setting machine is driven by a high-power motor near the falling cloth. The chain is equipped with a needle plate. When the cloth enters the chain, the cloth is pressed by the brush wheel on the cloth wheel to press the small needle on the needle plate. Enter the oven under the drive of two rows of chains. The chain of this typesetting machine is different from other setting machines. It can control the stretching of each piece of needles separately, so as to make good results. Some setting machines can not adjust each piece of needles and can only be adjusted. Rectangular or trapezoidal.


4. Oven body.

The setting machine has eight sets of ovens, and under the action of the circulation fan (2), the air is continuously sprayed on the cloth surface by the fine holes on the star-shaped jet rack. After the hot air contacts the wet cloth, the temperature drops and the humidity rises, and is discharged from the large hole in the star-shaped jet frame, passes through the filter (6), and is continuously circulated after being heated by the heat exchanger. The heat exchanger (8) is located below the filter (6). The hot coal used is hot oil. The heat exchanger has many thin fins for efficient heat exchange.


5. Falling cloth and rolling device.

The setting machine can be arranged in two ways, depending on the production needs, in the form of a cloth or a roll. Both methods are driven by a motor to drive the chain. When the cloth is discharged by the roll cloth, the tension stability of the cloth is required to be high, and the cloth needs to pass through a tension adjusting guide roller controlled by the air cylinder. In the case of a cloth-type drop cloth, the cloth does not need to pass through the tension adjusting roller to change through a fixed guide roller.