In a textile printing and dyeing factory, a device that stretches and stretches the fabric by heating and tensioning the two sides, and makes the width of the door width in the weft direction uniform.
The principle of Hot Air Stenter Machine:
Natural fiber fabrics such as cotton yarn, silk, wool, etc. have certain hygrothermal plasticity. In the printing and dyeing process, after scouring, wandering, dyeing, washing, etc., the whole fabric is elongated in warp direction and shortened in weft direction. Unevenness, by heating the hot air tenter and applying the horizontal drafting function, the weft direction can be widened and uniform, the cloth surface is flat and beautiful, and at the same time, the deformation of the fabric during the sewing process can be reduced.
Hot air tenter structure type:
There are many types of hot air tenter, but the basic structure is nothing more than the following combined components:
- Guiding device:
Is used to smoothly guide the fabric into the hot-air tenter. It is generally composed of a plurality of cloth guide rollers, an edge suction device and a bracket with a roller.
- Drafting device:
There are two types of cloth clips and needle plates. Generally, the needle plate type is used for cotton and wool fabrics, and the cloth clip type is used for silk. It is used to fasten the cloth surface and facilitate the application of tension to both sides to stretch the cloth surface.
- Heating device:
There are two types: open type and oven type. Generally, the cotton cloth is in a closed oven type, and the silk is in an open type, which is heated by steam and sprayed to wet.
- Ironing device:
Fabrics that have been drawn through a needle board or cloth clips will have uneven ruffles. After ironing with a steam roller in the middle, this ruffle will be eliminated, and at a higher temperature It can also stabilize the size of the stretched door width, and at the same time can iron the cloth more flat and bright.
- Cloth falling device:
Pass the stretched cloth through a series of guide rollers, roll the cloth into a roll or drop the cloth into the revolving car through the S-shaped swing to enter the next process.
- Static elimination device
Discharge the static electricity generated by the ironing friction on the surface of the cloth through discharge or positive and negative cancellation to prevent the accumulation of static electricity and affect the operation of workers.