A dual-adjusting guidewire device for network fibers and a guidewire method

Abstract

The present application relates to a kind of double-regulation guide wire device and guide wire method for network fiber, belong to spinning equipment technical field, guide wire device includes: mounting base;Fixer, connect to the side of the mounting base, for the mounting base is connected to spinning whole machine;Guide wire assembly, connect to the other side of the mounting base, including guide wheel group and guide roller group, the guide wheel group is set to the upper of guide roller group, for adjusting the outflow angle of the outflow end of bundle collector bundle;The guide roller group is used to adjust the running tension of bundle.The double-regulation guide wire device and method provided by the present application, through the synergistic optimization of outflow angle and running tension, creates a stable, controllable environment for fiber in network airflow, in this environment, bundle can maintain moderate opening to facilitate entanglement, and can maintain stable trajectory to inhibit abnormal vibration, so that the prepared meta-aramid network silk network degree is high, node is uniform and network firmness is good.

Description

Technical Field

[0001] This invention relates to the field of spinning equipment technology, specifically to a dual-adjustable guide device and guide method for web fibers. Background Technology

[0002] Meta-aramid filament is a functionalized product of high-performance aramid fiber, widely used in fields such as high-temperature tubing and high-temperature binding straps in aviation. In recent years, to meet the needs of the special equipment field of aviation, a differentiated meta-aramid filament (hereinafter referred to as "meta-aramid network yarn") has been developed. In addition to possessing the inherent characteristics of meta-aramid, meta-aramid network yarn benefits from its special surface structure, enabling it to chemically chelate with water-soluble surface modifiers, thus achieving functional expansion within the field and further broadening the application areas of meta-aramid filament.

[0003] The key to producing meta-aramid network yarn lies in the fiber network density and network strength. In the traditional meta-aramid network yarn spinning process, the fibers are directly drawn and wound onto a bobbin by guide rollers after passing through a bundling device. During this process, the bundling device usually introduces an inert gas at a certain pressure to promote fiber network formation. However, the fibers are prone to violent vibration under the action of high-pressure airflow, resulting in unstable bundle tension and difficulty in maintaining a stable network node formation environment. This leads to problems such as uneven network point distribution and insufficient strength.

[0004] Furthermore, tension control during the web formation process is easily overlooked. If the tension is too high, the vibration generated by the fiber bundle under high-pressure gas blowing will be weakened, leading to a decrease in the opening and rotation of the fiber bundle and a reduction in fiber cohesion, thus reducing the web's density and strength. On the other hand, if the fiber bundle tension is too low, the vibration generated by the fiber bundle will be aggravated, making it easy to deviate from the center of the airflow, resulting in an uneven fiber bundle network or even no network points. Consequently, the fibers will be scattered and lack cohesion, reducing the web's density and strength.

[0005] Therefore, there is an urgent need for a yarn guiding device and method that can simultaneously adjust the yarn tension and yarn exit angle and stabilize the yarn trajectory, so as to improve the production quality of meta-aramid network yarn. Summary of the Invention

[0006] The purpose of this invention is to provide a dual-adjustment guide device and guide method for network fibers, which can solve the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] The first aspect of the present invention provides a dual-adjustment guide device for network fibers, including a mounting base, a fixing device, and a guide assembly. The fixing device is connected to one side of the mounting base for connecting the mounting base to a spinning machine. The guide assembly is connected to the other side of the mounting base and includes a guide wheel group and a guide roller group. The guide wheel group is disposed above the guide roller group and is used to adjust the exit angle of the filament bundle at the exit end of the bundle collector. The guide roller group is used to adjust the running tension of the filament bundle.

[0009] In a preferred embodiment, the fixture includes a mounting plate fixedly connected to the side of the mounting base and a fixing cylinder connected to the outer side of the mounting plate, wherein fasteners are connected to the side wall of the fixing cylinder.

[0010] In a preferred embodiment, the guide wheel assembly includes an adjuster connected to a mounting base and a rotatable guide wheel body connected thereto. The adjuster is configured to adjust the distance of the guide wheel body in the horizontal direction relative to the mounting base to change the exit angle of the filament bundle.

[0011] In a preferred embodiment, the regulator is a linear regulating structure with a self-locking function.

[0012] In a preferred embodiment, the guide roller assembly includes a follower guide roller and an active guide roller disposed below it, the follower guide roller being offset relative to the active guide roller by a preset angle.

[0013] In a preferred embodiment, the offset angle of the follower guide roller relative to the active guide roller in the guide roller group can be adjusted within a preset range.

[0014] In a preferred embodiment, the mounting base and the fixture are connected by an arc-shaped mounting hole and a locking structure. The offset angle of the follower guide roller can be changed by adjusting the rotation angle of the mounting base around the arc-shaped mounting hole.

[0015] In a preferred embodiment, the central angle corresponding to the arc-shaped mounting hole is less than 30°.

[0016] A second aspect of the present invention provides a wire guiding method using the aforementioned dual-adjustment wire guiding device, comprising the following steps:

[0017] The dual-adjustment guide wire device is installed below the wire outlet of the bundler;

[0018] Adjust the offset angle and roller speed ratio of the follower guide rollers in the guide roller group to regulate the fiber tension;

[0019] Adjust the position of the guide wheel body in the guide wheel assembly to adjust the wire exit angle;

[0020] The filament bundle is sequentially guided through the guide wheel body, the follower guide roller, and the drive guide roller for production.

[0021] In a preferred embodiment, the position of the guide wheel body is adjusted so that the filament exit angle is 15±1°, and / or the roller speed ratio is adjusted so that the running tension of the filament is 15±2cN.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] This invention, by adding a dual-adjustment guide device after the special fiber bundling device, can simultaneously adjust the fiber network density and network strength. Specifically, by adjusting the exit angle of the fiber bundle after passing through the bundler, the loosening and rotation of the fiber bundle are controlled to ensure the fiber network density. Furthermore, by adjusting the angle between the follower guide roller and the drive guide roller to adjust the fiber bundle spacing, and by controlling the roller speed ratio to adjust the fiber bundle tension at the bundle outlet, the problems of fuzzy and broken fibers generated during the networking process are solved, the vibration frequency of the fibers when passing through the high-pressure airflow is reduced, and the fiber network strength is adjusted to achieve the best networking effect. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the dual-adjustment guidewire device in an embodiment of the present invention;

[0025] Figure 2 This is a front view of the dual-adjustment guidewire device in an embodiment of the present invention;

[0026] Figure 3 This is a right view of the dual-adjustment guidewire device in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the working path of the filament bundle in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the guide roller assembly in an embodiment of the present invention.

[0029] The meanings of the labels in the diagram are as follows:

[0030] 1. Mounting base; 11. Arc-shaped mounting hole; 12. Locking structure; 2. Fixer; 21. Mounting plate; 22. Fixing cylinder; 23. Fastener; 3. Guide wire assembly; 31. Guide wire wheel group; 311. Adjuster; 312. Guide wire wheel body; 32. Guide roller group; 321. Extension plate; 322. Roller shaft; 323. Follow-up guide roller; 324. Active guide roller; 4. Bundler. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] This embodiment discloses a dual-adjustment guide device for network fibers. The guide device is arranged downstream of the bundler 4 and is designed to coordinately adjust the fiber exit angle, fiber spacing and running tension to stabilize the state of the fiber in the high-pressure airflow of the network nozzle.

[0034] See Figures 1-3 The guide wire device includes a plate-shaped mounting base 1, which is vertically arranged, with a retainer 2 fixedly connected to one side and a guide wire assembly 3 fixedly connected to the other side.

[0035] The fixture 2 further includes a mounting plate 21 fixedly connected to the side of the mounting base 1 and a fixing cylinder 22 fixed to the outer side of the mounting plate 21. Figure 1 The fixing cylinder 22 is constructed as a cylindrical structure with its axis set horizontally, for use with the shaft-shaped fixing device (not shown in the figure) equipped with the spinning machine. During actual installation, the fixing cylinder 22 is fitted onto the shaft-shaped fixing device to achieve initial positioning of the entire yarn guiding device. Preferably, the outer wall of the fixing cylinder 22 is also connected to fasteners 23, such as set screws or bolts. By tightening these fasteners 23, the fixing cylinder 22 can be firmly locked onto the shaft-shaped fixing device to prevent displacement during operation. At the same time, loosening the fasteners 23 allows for axial position adjustment of the fixing cylinder 22 to ensure precise alignment between the yarn guiding assembly 3 and the yarn outlet of the bundler 4.

[0036] The guide assembly 3 includes a guide wheel group 31 and a guide roller group 32 fixedly connected to the other side of the mounting base 1. The guide wheel group 31 is located at the upper end of the mounting base 1 and is used to adjust the exit angle of the filament bundle at the exit end of the bundle collector 4, thereby controlling the openness and rotation state of the fibers in the network airflow to control the fiber network strength. The guide roller group 32 is located at the lower end of the mounting base 1 and corresponds to the position of the guide wheel group 31 above. It is used to adjust the filament bundle spacing and the exit tension of the filament bundle in the bundle collector 4, thereby controlling the fiber network strength and network density.

[0037] Specifically, such as Figure 1 and Figure 2 As shown, the guide roller assembly 31 includes an adjuster 311 fixedly connected to the mounting base 1 and a guide roller body 312 connected to the adjuster 311. The adjuster 311 is used to adjust the horizontal distance of the guide roller body 312 relative to the mounting base 1, allowing it to move closer to or further away from the mounting base 1. In practical applications, the bundle collector 4 is placed above the front side of the guide roller body 312 (i.e., corresponding to the side of the guide roller body 312 away from the mounting base 1). After the filaments exit through the bundle collector 4, they do not descend directly, but first contact and bypass the curved surface of the guide roller body 312 before entering the guide roller assembly 32. By adjusting the distance between the guide roller body 312 and the mounting base 1 (equivalent to adjusting the horizontal distance between the guide roller body 312 and the outlet of the bundle collector 4), the exit angle of the filaments can be adjusted. By adjusting the exit angle, the opening and closing of the filaments and the degree of filament rotation can be controlled, ensuring the fiber network density. It should be noted that the optimal effect is achieved when the filament exit angle (the acute angle formed by the line connecting the filament exit point of the bundler 4 to the corresponding side of the guide wheel body 312 and the axis of the bundler 4) is controlled at 15±1°. At this angle, the filament bundle maintains a moderate degree of openness when entering the high-pressure network airflow zone below, which facilitates fiber entanglement and ensures network integrity. This avoids excessive looseness and vibration caused by an excessively small angle, while also preventing excessive tension and poor fiber cohesion caused by an excessively large angle. The bearing-equipped guide wheel body 312 ensures low-friction rotation, preventing wear on the filament bundle.

[0038] The adjuster 311 can employ a linear adjustment and locking structure found in existing technologies, such as a telescopic rod structure with a self-locking function, or a nested inner and outer cylinder structure locked by set screws. In one specific embodiment, the adjuster 311 includes a cylindrical sleeve fixedly connected to the mounting base 1 and an adjusting rod movably inserted into the cylindrical sleeve. The axis of the cylindrical sleeve is perpendicular to the plane of the mounting base 1, and the center of the cylindrical sleeve has axially distributed hollows. The adjusting rod is constructed in an L-shape, with one end inserted into the hollow of the cylindrical sleeve and the other end connected to a rotatable guide wheel body 312 via a bearing. Multiple set screws are connected to the side wall of the cylindrical sleeve to facilitate the adjustment and tightening of the adjusting rod.

[0039] like Figure 2 and Figure 3 As shown, the guide roller assembly 32 includes a roller shaft 322 fixedly connected to the other side of the mounting base 1 via two extension plates 321, a follower guide roller 323 rotatably connected to the roller shaft 322, and an active guide roller 324 disposed below the follower guide roller 323. The active guide roller 324 is driven to rotate by an external drive structure (such as a motor), and the follower guide roller 323 rotates synchronously through the transmission of the yarn bundle wound on both, providing a stable traction force for the yarn bundle. In this embodiment, the follower guide roller 323 corresponds to the area below the guide roller body 312.

[0040] Further, see Figure 5 In this embodiment, the follower guide roller 323 and the active guide roller 324 are not parallel. The follower guide roller 323 is offset relative to the active guide roller 324 by a certain angle, and this angle can be adjusted within a preset range. In practical applications, the offset angle of the follower guide roller 323 is adjusted according to the distribution of fiber network nodes or the adaptability of different fiber specifications, thereby controlling the filament spacing on the guide roller group 32 to avoid fuzzing caused by static electricity and friction. Then, by controlling the speed of the active guide roller 324, the follower guide roller 323 is driven to adjust the filament tension and stabilize the filament tension in the optimal range of 15±2cN. Stable tension can effectively suppress the violent vibration generated when the filament passes through the high-pressure airflow, prevent it from deviating from the airflow center, and ensure that each filament can be fully and evenly opened and intertwined in the airflow, thereby forming a network structure with firm nodes and uniform distribution.

[0041] In one specific implementation, such as Figure 2 As shown, the mounting base 1 has an arc-shaped mounting hole 11, and the mounting plate 21 of the fixture 2 has a corresponding circular mounting hole. By connecting the locking structure 12, such as screws, to the arc-shaped mounting hole 11 and the circular mounting hole, the mounting base 1 and the fixture 2 can be fixedly connected. When the screws are loosened, the mounting base 1 and the entire guide roller assembly 32 fixed on it can rotate around the connection point within a certain angle range. After adjusting the angle, the screws are tightened again. In this embodiment, the central angle corresponding to the arc-shaped mounting hole 11 is preferably less than 30° (greater than 0°), so that the offset angle of the follower guide roller 323 can be continuously adjusted within a preset range.

[0042] Based on the dual-adjustment guide wire device for network fibers provided in the above embodiments, the present invention also discloses a guide wire method, combined with Figure 4 and Figure 5 The guidewire method includes the following steps:

[0043] Step 1, Device Installation and Preliminary Positioning: Install the network fiber using the double-adjustable guide device on the spinning machine through its retainer 2, and adjust its axial position so that the guide wheel group 31 and guide roller group 32 on the device are located below the fiber outlet of the bundler 4.

[0044] Step 2, filament spacing and tension adjustment: Adjust the installation angle of the mounting base 1 and the follower guide roller 323 on it through the arc mounting hole 11, that is, adjust the offset angle α to make the filament spacing appropriate, and then adjust the roller speed ratio to make the tension at the filament outlet end of the bundle collector 4 reach 15±2cN, and tighten the screw.

[0045] Step 3, adjusting the wire exit angle: Adjust the horizontal distance between the wire guide wheel body 312 and the wire exit port of the bundler 4 so that the acute angle β formed by the line connecting the wire exit point of the bundler 4 to the corresponding side of the wire guide wheel body 312 and the axis of the bundler 4 is 15±1°, that is, the wire exit angle of the bundler 4 reaches 15±1°.

[0046] Step 4, introduce the filament bundle and start production: The filament bundle is introduced into the filament guide device from the filament outlet of the bundler 4. The filament bundle passes around the guide wheel body 312, the follower guide roller 323 and the drive guide roller 324 in sequence, and after being wound around the follower guide roller 323 and the drive guide roller 324 a certain number of times, it enters the subsequent process for production.

[0047] The guidewire method provided by the present invention will be further described in detail below with reference to embodiments. It should also be understood that the following embodiments are only for further illustration of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-essential improvements and adjustments made by those skilled in the art based on the above description of the present invention are within the scope of protection of the present invention. The specific process parameters, etc., in the following examples are merely examples within a suitable range; that is, those skilled in the art can make appropriate selections within the appropriate range based on the description herein, and are not intended to be limited to the specific values ​​in the examples below.

[0048] Example 1

[0049] This embodiment provides a wire guiding method based on a dual-adjustment guide wire device for network fibers, including the following steps:

[0050] Step 1, Device Installation and Preliminary Positioning: Install the wire guide device below the wire outlet of the 200D specification bundler 4 by adjusting the position of the retainer 2;

[0051] Step 2, filament spacing and tension adjustment: Adjust the installation angle of the mounting base 1 and the follower guide roller 323 on it through the arc mounting hole 11 to adjust the filament spacing to 6-8mm, set the speed ratio of the active guide roller 324 to 0.992, and drive the follower guide roller 323 to control the tension at the filament outlet end of the bundle collector 4 to 15±2cN;

[0052] Step 3, adjusting the filament exit angle: Adjust the horizontal distance between the guide wheel body 312 and the bundle collector 4 to adjust the filament exit angle of the bundle at the outlet end of the bundle collector 4 to 15±1°.

[0053] Step 4, introduce the filament bundle and start production: The meta-aramid 200D natural white filament is produced by wet spinning. The meta-aramid filament bundle is introduced into the guide device from the outlet of the bundler 4. The filament bundle passes through the guide wheel body 312, the follower guide roller 323 and the drive guide roller 324 in sequence. After being wound around the follower guide roller 323 and the drive guide roller 324 a certain number of times, it enters the subsequent process for production.

[0054] In this embodiment, after the fiber bundle is fed into the bundle collector 4 and connected to the fiber guide device for 2 minutes, the network nodes generated on the fiber surface are continuous, stable, uniform, and free of fuzz. Five groups of 1-meter-long fiber bundles are tested for fiber network density and network strength using the water bath method. Each 1-meter fiber bundle contains 11 to 13 uniform network nodes with a node length of about 1 mm. The network nodes do not disperse in water and can be introduced into subsequent processes. No fiber breakage occurs during subsequent normal production.

[0055] Example 2

[0056] This embodiment provides a wire guiding method based on a dual-adjustment guide wire device for network fibers, including the following steps:

[0057] Step 1, Device Installation and Preliminary Positioning: Install the wire guide device at the wire outlet position of the 1200D specification bundler 4 by adjusting the position of the retainer 2;

[0058] Step 2, filament spacing and tension adjustment: Adjust the installation angle of the mounting base 1 and the follower guide roller 323 on it through the arc mounting hole 11 to adjust the filament spacing to 3-5mm, set the speed ratio of the active guide roller 324 to 0.992, and drive the follower guide roller 323 to control the tension at the filament outlet end of the bundle collector 4 to 15±2cN;

[0059] Step 3, adjusting the filament exit angle: Adjust the horizontal distance between the guide wheel body 312 and the bundle collector 4 so that the filament exit angle at the outlet end of the bundle collector 4 reaches 15±1°.

[0060] Step 4, introduce the filament bundle and start production: The meta-aramid 1200D natural white filament is produced by wet spinning. The meta-aramid filament bundle is introduced into the guide device from the outlet of the bundler 4. The filament bundle passes through the guide wheel body 312, the follower guide roller 323 and the drive guide roller 324 in sequence. After being wound around the follower guide roller 323 and the drive guide roller 324 a certain number of times, it enters the subsequent process for production.

[0061] In this embodiment, after the fiber bundle is introduced into the bundle collector 4 and connected to the fiber guide device for 2 minutes, the network nodes generated on the fiber surface are continuous, stable, uniform, and free of fuzz. Five groups of 1-meter-long fiber bundles were tested for fiber network density and network strength using a water bath method. Each 1-meter fiber bundle contained 15-18 uniform network nodes, with a node length of approximately 1 mm, and the network nodes did not disperse in water. This can be incorporated into subsequent processes, and no fiber breakage occurred during subsequent normal production.

[0062] Comparative Example 1

[0063] The comparative example is roughly the same as the guide method in Example 1. The difference is that in step two, by setting the speed ratio of the active guide roller 324 to 0.898, the follower guide roller 323 is driven to control the tension at the outlet end of the bundle of the bundle in the bundle collector 4 to be 8±2cN.

[0064] In this comparative example, the fiber tension was too low, resulting in excessive vibration amplitude in the network airflow. Although network points could be formed, the fiber bundle was prone to shaking and deviation. After the fiber bundle was introduced into the bundle collector 4 and connected to the fiber guide device for 2 minutes, the network nodes generated on the fiber surface were continuous, stable, uniform, and free of fuzz. Five groups of 1-meter-long fiber bundles were tested for fiber network density and network strength using the water bath method. Each 1-meter fiber bundle contained 5-8 uniform network nodes, with a node length of approximately 5mm. The network nodes did not disperse in water, but the excessive length of the network nodes caused the fiber to be embedded, resulting in a fiber breaking strength of <3.6 cN / dtex, making it unsuitable for subsequent production processes.

[0065] Comparative Example 2

[0066] The comparative example is roughly the same as the guide method in Example 1. The difference is that in step two, the speed ratio of the active guide roller 324 is set to 0.996, which drives the follower guide roller 323 to control the tension at the outlet end of the bundle of the bundle in the bundle collector 4 to be 30±2cN.

[0067] In this comparative example, the fiber bundle tension was too high, resulting in excessive tension and almost no vibration or loosening in the network airflow, preventing effective entanglement between fibers. After the fiber bundle was introduced into the bundle collector 4 and connected to the fiber guide device for 2 minutes, the network nodes on the fiber surface were loose and had severe fuzz. Five groups of 1-meter-long fiber bundles were tested using the water bath method to examine the fiber network density and network strength. Each 1-meter fiber bundle contained 3 to 5 uneven network nodes, indicating low network strength and easy disintegration in water. The fiber breaking strength was <3.6 cN / dtex, with poor bundle cohesion and severe fuzz, making it unsuitable for subsequent production processes.

[0068] Comparative Example 3

[0069] The comparative example is roughly the same as the wire guiding method in Example 1. The difference is that in step three, the horizontal distance between the wire guide wheel body 312 and the bundle collector 4 is adjusted to adjust the wire exit angle of the bundle at the outlet end of the bundle collector 4 to 5±1°.

[0070] In this comparative example, the filament exit angle was too small, causing the filament bundle to descend almost vertically, resulting in insufficient directional change after contact with the guide wheel. This led to the filament bundle being too loose and lacking cohesion when entering the airflow zone, with insufficient interaction between fibers, making it difficult to form effective network nodes. Specifically, after the filament bundle was introduced into the bundle collector 4 and connected to the guide device for 2 minutes, no obvious network nodes were generated on the fiber surface. The fibers were loose and had severe fuzz. Five groups of 1-meter-long filament bundles were tested for fiber network density and network strength using the water bath method. Each 1-meter filament bundle contained 3-5 uneven network nodes. The nodes lacked strength and easily dispersed in water. The fibers lacked cohesion, the breaking strength was <3.6 cN / dtex, and the fuzz was severe, making it unsuitable for subsequent production processes.

[0071] Comparative Example 4

[0072] The comparative example is roughly the same as the wire guiding method in Example 1. The difference is that in step three, the horizontal distance between the wire guide wheel body 312 and the bundle collector 4 is adjusted to adjust the wire exit angle of the bundle at the outlet end of the bundle collector 4 to 30±1°.

[0073] In this comparative example, the excessively large exit angle caused the fiber bundle to be over-guided and stretched. Although there were some network points, the fiber orientation was too parallel, resulting in insufficient opening and low entanglement efficiency. After the fiber bundle was introduced into the bundle collector 4 and connected to the fiber guide device for 2 minutes, network nodes were generated on the fiber surface. Five groups of 1-meter-long fiber bundles were tested for fiber network density and network strength using the water bath method. Each 1-meter fiber bundle contained 5 to 8 uneven network nodes, with a node length of about 6 mm. These nodes did not easily disperse in water, but the excessive length of the network nodes caused the fiber to be buried. The fiber breaking strength was <3.6 cN / dtex, making it unsuitable for subsequent production processes.

[0074] Comparative Example 5

[0075] The spinning method provided in this comparative example does not use a yarn guide device. The yarn bundle is directly introduced into the subsequent production process from the outlet end of the 200D specification bundle collector 4 through the guide roller. The yarn bundle is in a completely disordered and violently vibrating state in the airflow. Five groups of 1-meter-long yarn bundles were taken for water bath method to test the fiber network degree and network strength. The 1-meter yarn bundle contained 3 to 5 uneven network nodes, and the node length was unevenly distributed in the range of 1 to 5 mm. The fiber bundle had poor bundleness and a lot of fuzz. The broken strength of the produced fiber was <3.6 cN / dtex and the stability was poor. The fuzz was serious, and it was a substandard or ungraded product.

[0076] Comparisons of Examples 1 and 2 with comparative examples show that without a dual-adjustment guide device, fibers cannot be stably and uniformly entangled within the bundler 4, resulting in the formation of uniformly strong network nodes. The different installation positions of the guide roller body 312 and the follower guide roller 323 significantly impact the network strength and density of the filament bundle network nodes during production, as well as the stability of subsequent production. Different specifications of network yarns can be produced by controlling the bundle spacing. Comparisons reveal that when the bundle tension at the exit end of the bundler 4 is 13-17 cN and the exit angle is 14-16°, meta-aramid network yarns with uniform network density and high network strength can be continuously produced.

[0077] The dual-adjustment guide device and method provided by the present invention creates a stable and controllable environment for the fiber in the network airflow through the coordinated optimization of the fiber exit angle and the running tension. Under this environment, the fiber bundle can maintain a moderate openness to facilitate entanglement (angle control) and maintain a stable trajectory to suppress abnormal vibration (tension control), thereby making the prepared meta-aramid network yarn have high network density, uniform knots and good network strength.

[0078] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-adjustable guide wire device for network fibers, characterized in that, include: Mounting base; A fastener is attached to one side of the mounting base for connecting the mounting base to the spinning machine. The guide wire assembly, connected to the other side of the mounting base, includes a guide wire wheel group and a guide roller group. The guide wire wheel group is disposed above the guide roller group and is used to adjust the exit angle of the filament bundle at the exit end of the bundle collector. The guide roller group is used to adjust the running tension of the filament bundle. The guide wheel assembly includes an adjuster connected to the mounting base and a rotatable guide wheel body connected thereto. The adjuster is configured to adjust the distance of the guide wheel body in the horizontal direction relative to the mounting base to change the wire exit angle. The guide roller assembly includes a follower guide roller and an active guide roller disposed below it. The follower guide roller is offset relative to the active guide roller by a preset angle, and the offset angle can be adjusted within a preset range.

2. The dual-adjustable guide wire device for network fibers according to claim 1, characterized in that, The fixture includes a mounting plate fixedly connected to the side of the mounting base and a fixing cylinder connected to the outer side of the mounting plate, wherein fasteners are connected to the side wall of the fixing cylinder.

3. The dual-adjustable guide wire device for network fibers according to claim 1, characterized in that, The regulator is a linear regulating structure with a self-locking function.

4. The dual-adjustable guide wire device for network fibers according to claim 1, characterized in that, The mounting base and the fixing device are connected by an arc-shaped mounting hole and a locking structure. By adjusting the rotation angle of the mounting base around the arc-shaped mounting hole, the offset angle of the follower guide roller can be changed.

5. The dual-adjustable guide wire device for network fibers according to claim 4, characterized in that, The central angle corresponding to the arc-shaped mounting hole is less than 30°.

6. A method for guiding a wire using the dual-adjustment guidewire device as described in any one of claims 1 to 5, characterized in that, Includes the following steps: The dual-adjustment guide wire device is installed below the wire outlet of the bundler; Adjust the offset angle and roller speed ratio of the follower guide rollers in the guide roller group to regulate the fiber tension; Adjust the position of the guide wheel body in the guide wheel assembly to adjust the wire exit angle; The filament bundle is sequentially guided through the guide wheel body, the follower guide roller, and the drive guide roller for production.

7. The guidewire method according to claim 6, characterized in that, Adjust the position of the guide wheel body so that the filament exit angle is 15±1°, and / or adjust the roller speed ratio so that the running tension of the filament is 15±2cN.

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