Preparation device of superfine pore polyester profile DTY yarn

By improving the false twister to a dual-path false twister and using a friction wheel heating device, the problems of excessive use of false twisters and temperature control in DTY yarn preparation were solved, achieving efficient and stable composite yarn production.

CN224395149UActive Publication Date: 2026-06-23HANGZHOU ZHONGLI CHEM FIBER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU ZHONGLI CHEM FIBER CO LTD
Filing Date
2025-07-10
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In the current process of DTY yarn preparation, multiple sets of false twisting devices are required for composite yarn, which leads to extended process and frequent false twisting failures, and the temperature of fine denier yarn is difficult to control effectively.

Method used

An ultra-fine pore polyester profiled DTY yarn preparation device is used. By improving the design of the false twister to a dual-path false twister, and combining it with a friction wheel and a stretching roller, the use of the false twister is reduced, and the yarn temperature is maintained by a heating device.

Benefits of technology

This technology reduces the use of false twisters in composite yarn preparation, avoids false twisting, maintains stable temperature of fine denier yarn, and improves processing efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of superfine pore terylene special-shaped DTY silk preparation device, by the improvement reuse of a set of false twist device, achieve the purpose of reducing false twist device use when making composite yarn.The utility model provides a kind of superfine pore terylene special-shaped DTY silk preparation device, is set in the output of spinneret, comprising: first yarn guide and second yarn guide, draw-off bar group, double passage false twister, winding device;Wherein the first POY silk line is input from the first input of double passage false twister by first yarn guide, false twist output DTY intermediate silk, the second POY silk line is input from the second input by second yarn guide on DTY intermediate silk and silk, and false twist output special-shaped DTY silk;Special-shaped DTY silk is wound by winding device.
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Description

Technical Field

[0001] This utility model relates to the field of yarn textile equipment, specifically to a device for preparing ultra-fine porous polyester profiled DTY yarn. Background Technology

[0002] Polyester fiber, as one of the three major synthetic fibers, is widely used in clothing fabrics and other non-clothing fields due to its excellent physical and chemical properties. To fully utilize its properties, profiled yarns are produced using profiled spinnerets, and then woven to obtain profiled DTY (dimethyl polyester ester). A typical application is to use the profiled cross-section to increase the fiber's moisture absorption. To achieve a smoother fabric texture, a reduction in denier is required during spinning; therefore, it is necessary to design a device for preparing ultra-fine porous polyester profiled DTY yarns. Summary of the Invention

[0003] This invention addresses the issue that existing DTY yarn reprocessing typically requires a single twisting or false twisting device for a single DTY yarn, while composite yarn requires multiple twisting or false twisting devices. This invention provides a device for preparing ultra-fine porous polyester profiled DTY yarn, which improves and reuses a single false twisting device, thereby reducing the need for false twisting devices when making composite yarn.

[0004] This utility model provides a device for preparing ultra-fine pore polyester profiled DTY yarn, which is set at the output port of the spinneret and includes: a first yarn guide and a second yarn guide, a stretching roller group, a dual-channel false twister, and a winding device.

[0005] The first type of POY yarn is fed into the first input port of the dual-path false twister from the first yarn guide, and the false twist outputs DTY intermediate yarn. The second type of POY yarn is fed into the second input port from the second yarn guide, and the false twist outputs shaped DTY yarn. The shaped DTY yarn is wound up by the winding device.

[0006] A dual-path false twister includes: one drive rod and four fixed rods, wherein the fixed rods include the first to the fourth fixed rods;

[0007] The axes of the first and second fixed rods and the driving rod form an equilateral triangle in the top view and become the first working part; the axes of the third and fourth fixed rods and the driving rod form an equilateral triangle in the top view and become the second working part.

[0008] The first and second working sections are rotationally symmetrical about the drive rod by 180°.

[0009] Friction wheels are fitted on the active rod and the fixed rod. The friction wheel on the active rod rotates coaxially with the active rod, and the friction wheel on the fixed rod is hinged to the fixed rod.

[0010] The friction wheels are arranged sequentially;

[0011] Both the drive rod and the fixed rod are mounted on the base, and the power source is installed inside the base. The power source is connected to the drive rod.

[0012] The base casing is equipped with wire channels;

[0013] A wire tray is added to the wire groove of the base in the second working area.

[0014] When setting up the friction wheels, the calculation is done in layers. First, the first layer of friction wheels is set on the first and third fixed rods, the second layer of friction wheels is set on the driving rod, the third layer of friction wheels is set on the second and fourth fixed rods, the fourth layer of friction wheels is set on the first and third fixed rods, the fifth layer of friction wheels is set on the driving rod, and the sixth layer of friction wheels is set on the second and fourth fixed rods.

[0015] The diameter of the first layer friction wheel is equal to the diameter of the tail layer friction wheel on the fourth fixed rod.

[0016] The friction wheels on the drive rod have the same diameter, the diameter of the friction wheels on the first working part increases sequentially, and the diameter of the friction wheels on the second working part decreases sequentially.

[0017] The increase or decrease in diameter is the same.

[0018] All of the friction wheels mentioned above use ceramic discs.

[0019] An additional guide plate is provided on the input shaft of the first working part.

[0020] At least one tensioning roller is also provided between the second guide wire and the second input port of the dual-path false twister;

[0021] The stretching roller is made of metal and has a heating device inside the shaft.

[0022] The heating device inside the stretching roller helps maintain the temperature of the POY yarn, which is beneficial for subsequent processing.

[0023] The beneficial effects of this utility model are as follows: by using one false twister reasonably, the process of using two false twisters is extended; by using the false twister in a reasonable direction, the false twisting is not released; and by using the stretching roller, the temperature of the fine denier yarn is maintained, avoiding the impact of the large surface area of ​​the fine denier yarn on the processing. Attached Figure Description

[0024] Figure 1 Silk thread routing diagram;

[0025] Figure 2 False twister structure diagram;

[0026] In the diagram: 1. Second guide wire, 2. First guide wire, 3. Dual-path false twister, 31. Drive rod, 32. Fixed rod, 33. Wire groove, 4. Winding device, 5. Additional wire reel, 51. Additional wire reel two, 52. Additional wire reel three, 61. Tensioning roller one, 62. Tensioning roller two. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. Example 1:

[0028] like Figure 1 As shown, the device for preparing ultra-fine porous polyester profiled DTY yarn is located at the output port of the spinneret and includes: a first yarn guide 2 and a second yarn guide 1, a stretching roller group (including stretching roller 1 61 and stretching roller 2 62), a dual-path false twister 3, and a winding device 4.

[0029] The first type of POY yarn is fed into the first input port of the dual-path false twister from the first yarn guide 2, and the false twist outputs DTY intermediate yarn. The second type of POY yarn is fed into the second input port from the second yarn guide, and the false twist outputs shaped DTY yarn. The shaped DTY yarn is wound up by the winding device.

[0030] The dual-path false twister includes: one active rod 31 and four fixed rods 32, wherein the fixed rods include the first to the fourth fixed rods;

[0031] The axes of the first and second fixed rods and the driving rod form an equilateral triangle in the top view and become the first working part; the axes of the third and fourth fixed rods and the driving rod form an equilateral triangle in the top view and become the second working part.

[0032] The first and second working sections are rotationally symmetrical about the drive rod by 180°.

[0033] Friction wheels are fitted on the active rod and the fixed rod. The friction wheel on the active rod rotates coaxially with the active rod, and the friction wheel on the fixed rod is hinged to the fixed rod.

[0034] The friction wheels are arranged sequentially;

[0035] Both the active rod and the fixed rod are mounted on the base, and the power source is located inside the base. The power source drives the active rod. The power source is a servo motor located inside the base.

[0036] The base housing is provided with wire groove 33;

[0037] A wire tray is added to the wire groove of the base in the second working area.

[0038] When setting up the friction wheels, the calculation is done in layers. First, the first layer of friction wheels is set on the first and third fixed rods, the second layer of friction wheels is set on the driving rod, the third layer of friction wheels is set on the second and fourth fixed rods, the fourth layer of friction wheels is set on the first and third fixed rods, the fifth layer of friction wheels is set on the driving rod, and the sixth layer of friction wheels is set on the second and fourth fixed rods.

[0039] The diameter of the first layer friction wheel is equal to the diameter of the tail layer friction wheel on the fourth fixed rod.

[0040] All of the friction wheels mentioned above use ceramic discs.

[0041] An additional guide wire reel 5 is provided on the input shaft of the first working part. An additional guide wire reel 2 51 is provided on the output port of the first working part. An additional guide wire reel 3 52 is provided on the output port of the second working part.

[0042] A second tension roller is installed between the second guide wire and the second input port of the dual-path false twister;

[0043] The stretching roller is made of metal and has a heating device inside the shaft.

[0044] The heating device inside the stretching roller helps maintain the temperature of the POY yarn, which is beneficial for subsequent processing. Example 2:

[0045] This embodiment is an improvement on Embodiment 1, the difference being the dual-path false twister, such as... Figure 2 As shown, the friction wheels of the active rod of the dual-path false twister have the same diameter, the diameter of the friction wheels on the first working part increases sequentially, and the diameter of the friction wheels on the second working part decreases sequentially; the increase or decrease in diameter is the same.

[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for preparing ultra-fine porous polyester profiled DTY yarn, characterized in that, The output port of the spinneret includes: a first guide wire and a second guide wire, a stretching roller assembly, a dual-path false twister, and a winding device. The first type of POY yarn is fed into the first input port of the dual-path false twister from the first yarn guide, and the false twist outputs DTY intermediate yarn. The second type of POY yarn is fed into the second input port from the second yarn guide, and the false twist outputs shaped DTY yarn. The shaped DTY yarn is wound up by the winding device.

2. The apparatus for preparing ultra-fine porous polyester profiled DTY yarn according to claim 1, characterized in that, A dual-path false twister includes: one drive rod and four fixed rods, wherein the fixed rods include the first to the fourth fixed rods; The axes of the first and second fixed rods and the driving rod form an equilateral triangle in the top view and become the first working part; the axes of the third and fourth fixed rods and the driving rod form an equilateral triangle in the top view and become the second working part. The first and second working sections are rotationally symmetrical about the drive rod by 180°. Friction wheels are fitted on the active rod and the fixed rod. The friction wheel on the active rod rotates coaxially with the active rod, and the friction wheel on the fixed rod is hinged to the fixed rod. The friction wheels are arranged sequentially; Both the drive rod and the fixed rod are mounted on the base, and the power source is installed inside the base. The power source is connected to the drive rod. The base casing is equipped with wire channels; A wire tray is added to the wire groove of the base in the second working area.

3. The apparatus for preparing ultra-fine porous polyester profiled DTY yarn according to claim 2, characterized in that, The friction wheels on the drive rod have the same diameter, the diameter of the friction wheels on the first working part increases sequentially, and the diameter of the friction wheels on the second working part decreases sequentially. The increase or decrease in diameter is the same. All of the friction wheels mentioned use ceramic discs.

4. The apparatus for preparing ultra-fine porous polyester profiled DTY yarn according to claim 2, characterized in that, An additional guide plate is provided on the input shaft of the first working part.

5. The apparatus for preparing ultra-fine porous polyester profiled DTY yarn according to claim 1, characterized in that, At least one tensioning roller is also provided between the second guide wire and the second input port of the dual-path false twister; The stretching roller is made of metal and has a heating device inside the shaft.