A high-density flax yarn production device

Abstract

The utility model belongs to yarn production equipment technical field discloses a kind of high-density flax yarn production devices, including drawing mechanism, twisting mechanism and winding mechanism being sequentially arranged along the direction of yarn travel, still include the fibre pretreatment mechanism being set in the drawing mechanism front process;Fibre pretreatment mechanism includes closed pretreatment box, pretreatment box has material inlet and material outlet, guide roller group and activation liquid tank are equipped in pretreatment box, sealing airtight component is equipped in material inlet and material outlet place, sealing airtight component is connected with external gas source system and communicates, guide roller group includes at least three guide rollers, and the guide roller part of the lowermost one is immersed in activation liquid tank.This utility model is through the synergic effect of activation liquid tank and guide roller group, depth softens flax fibre internal rigid node, so that it can withstand high times draft, to reduce the broken fibre rate, lay the foundation for high-density yarn production, while significantly improve the fibre spinnability.

Description

Technical Field

[0001] This utility model relates to the field of yarn production equipment technology, and in particular to a high-density flax yarn production device. Background Technology

[0002] Flax fiber, as a natural cellulose fiber, has excellent properties such as moisture absorption, breathability, antibacterial and UV resistance, and is widely used in high-end textiles.

[0003] However, flax fibers are inherently stiff, have uneven fiber lengths, and poor cohesion. In traditional spinning processes, there is a problem of insufficient fiber pretreatment. Specifically, existing technologies usually perform uniform humidification or softening treatment on flax rovings before spinning, but this treatment is not sufficient or uniform. When the fibers enter the high-ratio drafting zone, rigid nodes still exist inside, and direct strong drafting can easily break the fibers. Therefore, we propose a high-density flax yarn production device. Utility Model Content

[0004] In view of the problem of insufficient fiber pretreatment in the existing flax yarn production equipment, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A high-density flax yarn production apparatus includes a drafting mechanism, a twisting mechanism, and a winding mechanism arranged sequentially along the yarn travel direction, and also includes a fiber pretreatment mechanism arranged in the process preceding the drafting mechanism. The fiber pretreatment mechanism includes a sealed pretreatment box with a material inlet and a material outlet. The pretreatment box is equipped with a guide roller assembly and an activation liquid tank. Both the material inlet and the material outlet are equipped with airtight sealing components, which are connected to an external air source system.

[0006] As a technical solution of the high-density flax yarn production device of this utility model, the guide roller group includes at least three guide rollers, and the bottommost guide roller is partially immersed in the activation liquid tank.

[0007] As a technical solution of the high-density flax yarn production device of this utility model, the guide roller group consists of a first guide roller, a second guide roller, and a third guide roller installed in the pretreatment box. The first guide roller, the second guide roller, and the third guide roller are arranged in an alternating vertical arrangement, and the third guide roller is partially immersed in the activation liquid tank.

[0008] As a technical solution of the high-density flax yarn production device of this utility model, the airtight sealing component includes an air chamber installed on the pretreatment box, an air outlet slit connected to the air chamber, and a flange interface connected to the air chamber.

[0009] As a technical solution of the high-density flax yarn production device of this utility model, wherein: the air outlet slit faces the interior of the pretreatment box through the material inlet and the material outlet.

[0010] As a technical solution of the high-density flax yarn production device of this utility model, the air chamber is connected to an external air source system through the flange interface, and an airflow curtain inclined towards the pretreatment box is generated through the air outlet slit.

[0011] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model, through the synergistic effect of the activation liquid tank and the guide roller group, deeply softens the rigid nodes inside the flax fiber, enabling it to withstand high stretching, thereby reducing the fiber breakage rate, laying the foundation for the production of high-density yarn, and significantly improving the spinnability of the fiber.

[0012] 2. This utility model, through the airflow curtain design of the airtight component, breaks through the sealing bottleneck of traditional pretreatment equipment. While ensuring the continuous entry and exit of fibers, it maintains a constant humidity and temperature environment inside the box, avoids the failure of the activation liquid, improves production efficiency, and realizes efficient and continuous pretreatment. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the main structure of this utility model.

[0014] Figure 2 This is a side view of the structure of this utility model.

[0015] Figure 3 This is a half-sectional structural diagram of the present invention.

[0016] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0017] Explanation of reference numerals in the attached figures: In the diagram: 1. Pretreatment box; 101. Material inlet; 102. Material outlet; 103. First guide roller; 104. Second guide roller; 105. Third guide roller; 106. Activation liquid tank; 201. Air chamber; 202. Air outlet slit; 203. Flange interface. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0020] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0021] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0022] Reference Figures 1-4 A high-density flax yarn production apparatus is provided. This high-density flax yarn production apparatus includes a drafting mechanism, a twisting mechanism, and a winding mechanism arranged sequentially along the yarn travel direction. The drafting mechanism, twisting mechanism, and winding mechanism are existing technologies and will not be described in detail here, and are not shown in the figure. It also includes a fiber pretreatment mechanism arranged in the process before the drafting mechanism. The fiber pretreatment mechanism includes a sealed pretreatment box 1, which is made of stainless steel. The pretreatment box 1 has a material inlet 101 and a material outlet 102. The pretreatment box 1 is equipped with a guide roller assembly and an activation liquid tank 106. Both the material inlet 101 and the material outlet 102 are equipped with airtight components, which are connected to an external air source system. In application, by adding a sealed pretreatment box 1 before the drafting mechanism, combined with soaking in an activation liquid (the activation liquid consists of an aqueous solution containing 5-8% sodium hydroxide, 3% sodium silicate, and 0.5% penetrant JFC, with a pH value controlled at 10-11), the softening uniformity of flax fibers is significantly improved, and fiber breakage during subsequent drafting is reduced. At the same time, the airtight components are connected to an external air source system to prevent the activation liquid from evaporating, maintain a stable processing environment, and ensure process consistency.

[0023] Reference Figures 1-3 The guide roller assembly includes at least three guide rollers, with the lowest guide roller partially immersed in the activation liquid tank 106. The guide roller assembly consists of a first guide roller 103, a second guide roller 104, and a third guide roller 105 installed in the pretreatment box 1. The first guide roller 103, the second guide roller 104, and the third guide roller 105 are arranged in an alternating pattern to form an S-shaped fiber path, and the third guide roller 105 is partially immersed in the activation liquid tank 106. In application, the three rollers are arranged in an alternating pattern (the first guide roller 103 and the second guide roller 104 guide the fiber path, and the third guide roller 105 is immersed in the activation liquid) to prolong the contact time between the fiber and the activation liquid, improve the softening and penetration efficiency, and at the same time, the mechanical movement of the guide rollers assists in fiber dispersion, avoids clumping, and enhances the effect of the activation liquid on the rigid nodes inside the fiber.

[0024] Reference Figure 3 and Figure 4 The airtight sealing assembly includes an air chamber 201 installed on the pretreatment box 1, an air outlet slit 202 communicating with the air chamber 201, and a flange interface 203 communicating with the air chamber 201. The air outlet slit 202 faces the interior of the pretreatment box 1 through the material inlet 101 and the material outlet 102. For example, if the width of the air chamber 201 is 5 mm and the gap of the air outlet slit 202 is 0.5 mm, it ensures that the airflow curtain covers the fiber passage area and reduces the escape of activation liquid vapor. In application, the inclined airflow curtain generated by the air chamber 201 forms an airtight barrier at the material inlet 101 and the material outlet 102, which allows the fiber to pass continuously while blocking the gas exchange between the inside and outside of the pretreatment box 1.

[0025] Reference Figure 3 and Figure 4The air chamber 201 is connected to an external air source system through the flange interface 203, and generates an airflow curtain that is inclined towards the pretreatment box 1 through the air outlet slit 202. An external air pump (air pressure 0.1-0.3MPa) is connected through the flange interface 203. The airflow is sprayed into the box at a 45° angle from the air outlet slit 202, forming a continuous airflow barrier. In application, the design of the flange interface 203 to connect to the external air source system makes it easy to adjust the airflow pressure and angle to adapt to different fiber processing needs.

[0026] The working principle of this utility model is as follows: Pretreatment stage operation: First, flax roving enters the pretreatment box 1 from the material inlet 101, passes through the first guide roller 103 and the second guide roller 104 in sequence, and is immersed in the activation liquid tank 106 through the third guide roller 105 for a period of time (such as 3-5 minutes). Then, the mechanical movement of the guide rollers promotes the dispersion of fibers, and the activation liquid penetrates into the fiber interior, dissolving lignin and softening rigid nodes. At the same time, the airflow curtain blocks the entry of external air to maintain the humidity in the pretreatment box 1 and prevent the activation liquid from evaporating. Drafting and spinning stage operation: The processed fibers are output from the material outlet 102, isolated by the airflow curtain and enter the drafting mechanism. Then the fibers are twisted by the twisting mechanism to form high-density yarn, and finally wound by the winding mechanism.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-density flax yarn production apparatus, comprising a drafting mechanism, a twisting mechanism, and a winding mechanism arranged sequentially along the yarn travel direction, characterized in that: It also includes a fiber pretreatment mechanism disposed in the process preceding the drawing mechanism; The fiber pretreatment mechanism includes a sealed pretreatment box (1), which has a material inlet (101) and a material outlet (102). The pretreatment box (1) is equipped with a guide roller group and an activation liquid tank (106). Both the material inlet (101) and the material outlet (102) are equipped with airtight components, which are connected to an external air source system.

2. The high-density flax yarn production apparatus according to claim 1, characterized in that: The guide roller assembly includes at least three guide rollers, with the lowest guide roller partially immersed in the activation liquid tank (106).

3. The high-density flax yarn production apparatus according to claim 2, characterized in that: The guide roller group consists of a first guide roller (103), a second guide roller (104), and a third guide roller (105) installed in the pretreatment box (1). The first guide roller (103), the second guide roller (104), and the third guide roller (105) are arranged in an alternating vertical arrangement, and the third guide roller (105) is partially immersed in the activation liquid tank (106).

4. The high-density flax yarn production apparatus according to claim 1, characterized in that: The airtight sealing assembly includes an air chamber (201) installed on the pretreatment box (1), an air outlet slit (202) communicating with the air chamber (201), and a flange interface (203) communicating with the air chamber (201).

5. The high-density flax yarn production apparatus according to claim 4, characterized in that: The vent slit (202) extends toward the interior of the pretreatment box (1) through the material inlet (101) and the material outlet (102).

6. The high-density flax yarn production apparatus according to claim 4, characterized in that: The air chamber (201) is connected to an external air source system through the flange interface (203), and generates an airflow curtain that tilts into the pretreatment box (1) through the air outlet slit (202).

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