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The high-speed polyester elastic machine with a guide disc structure realizes the conversion of polyester pre oriented yarn (POY) to stretch deformed yarn (DTY) through the guide disc structure. Its working principle covers three core steps: stretching, twisting, and shaping, as follows:

1. Stretching and deformation

Raw material introduction: Polyester pre oriented yarn (POY) is used as raw material and enters the equipment through a yarn cutter.

Stretch treatment: POY raw silk is first fed through the first roller (FR1), and then subjected to the stretching effect of the second roller (FR2).

. During this process, the molecular arrangement of the filament becomes more compact, thereby enhancing the strength of the filament.

Twisting effect: While stretching, the false twisting device transmits twisting force to the filament, causing it to produce a curled structure similar to a spring, thereby obtaining elasticity.

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2. Heat setting treatment

First heat box: The stretched and twisted filament enters the first heat box (H1), and under the action of stretching force, false twisting force, and heat, the filament undergoes stretching deformation and heat setting.

. The main function of the first hot box is to stretch and twist the wire under tension, and to perform tension heat setting on these deformations. Cooling plate: The wire strip coming out of the first hot box passes through the cooling plate, and the temperature drops to around 60-70 ℃. This step fixes the thermal deformation of the filament, reduces its thermoplasticity, and gives the filament a certain degree of rigidity, which is more conducive to the transmission of twist.

Second hot box: The wire rod then enters the second hot box (H2) for supplementary heat setting.

. This step helps to eliminate the internal stress between fibers, promote the de orientation of some high-energy molecular segments, and achieve the goal of fiber structure stability.

III. Advantages of Guide Disk Structure

Independent Transmission: The high-speed polyester elastic machine adopts a guide disk structure, and each guide disk has an independent transmission motor.

. This design allows for individual adjustment of the speed of each wire guide disc, thereby better controlling the stretching and deformation process of the wire rod.

Energy consumption reduction: The wire guide disc structure helps to reduce energy consumption, improve wire quality and production stability.

. At the same time, it can also reduce the loss of machine spare parts and extend the service life of equipment.

4. Follow up Processing and Winding

Oiling System: The filament coming out of the second hot box passes through the oiling system, and the purpose of oiling is to increase the smoothness and cohesion of the fibers, reduce fiber static electricity, and make the wound filament ingot unwind and have good weaving performance.

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Winding Forming: Finally, the wire rod is wound on the wire drum under the driving of the winding roller and the reciprocating motion of the transverse guide rod, becoming the final product - DTY wire ingot.

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