Spinning direction adjusting structure for improving tear strength of nonwoven fabric

Abstract

The utility model relates to spinning equipment technical field especially for improve the spinning direction adjustment structure of non - woven fabric tear strength, including the branch, be provided with direction mechanism on the branch and be used for adjusting the laying direction of fibre silk, and direction mechanism includes: adjustment subassembly, including fixed in the extension frame of branch front end left and right sides, the upper end of extension frame is rotatably installed with the axle holder through the pivot, rotatably installs the roll between the both ends of axle holder, the front end fixed of axle holder has the connecting piece, the right side fixed of extension frame front end has the axle seat, and the axle seat is hinged with the pneumatic cylinder, and the output end of pneumatic cylinder is hinged with connecting piece, auxiliary assembly sets up on the branch and is used for monitoring the fibre silk state, when the fibre silk bundle falls, through changing its contact surface angle, makes it obtain horizontal velocity, thereby with the wave shape trajectory disorderly lays the net, and through adsorption and airflow disturbance enhancement dispersion, realizes the improvement tear strength.

Description

Technical Field

[0001] This utility model relates to the field of spinning equipment technology, specifically to a spinning direction adjustment structure for improving the tear strength of nonwoven fabrics. Background Technology

[0002] As an important engineering material, the mechanical properties of nonwoven fabric, especially its tear strength, are directly related to the durability and application range of the final product.

[0003] According to CN213113663U, a device for adjusting the angle of soft spinning is disclosed. This technology discloses a technical solution including "a support frame, on the surface of which support columns are respectively provided, a rotating shaft is provided on the upper side of the support columns, and a pulley is provided at one end of the rotating shaft". It has the technical effect of "facilitating the entry of the spinning yarn into the interior of the fixed block, then into the interior of the first fixed column, and finally out through the circular groove on one side of the rotating ring. When the spinning yarn exits from the circular groove, the output angle of the spinning yarn is adjusted by rotating the rotating ring, so that the spinning yarn can move at multiple angles. Then, the spinning yarn exits from the circular groove and enters the interior of the second fixed block. Then, by rotating the second fixed block, the height angle of the spinning yarn is adjusted, so that the spinning yarn enters the interior of the textile machine in the best way, thereby making the spinning yarn enter the loom smoothly, reducing interference and damage to the spinning yarn, and improving product quality".

[0004] In existing spinning web forming processes, because the fiber bundles are mainly arranged parallel to the machine direction, the resulting nonwoven fiber network structure exhibits significant anisotropy, resulting in insufficient tear strength in the machine direction. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a spinning direction adjustment structure to improve the tear strength of nonwoven fabrics. When the fiber bundle falls, the angle of its contact surface is changed to give it a lateral velocity, thereby creating a chaotic web with a wavy trajectory. The dispersion is enhanced by adsorption and airflow disturbance, thus improving the tear strength.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a spinning direction adjustment structure for improving the tear strength of nonwoven fabrics, comprising a support plate, wherein the support plate is provided with a direction mechanism for adjusting the laying direction of the fiber filaments, the direction mechanism comprising:

[0007] The adjustment assembly includes an extension frame fixed on the left and right sides of the front end of the support plate. A shaft frame is rotatably mounted on the upper end of the extension frame via a rotating shaft. A roller is rotatably mounted between the two ends of the shaft frame. A connector is fixed at the front end of the shaft frame. A shaft seat is fixed on the right side of the front end of the extension frame. A cylinder is pivotally connected to the shaft seat, and the output end of the cylinder is pivotally connected to the connector.

[0008] An auxiliary component is mounted on the support plate and is used to monitor the condition of the fiber filaments.

[0009] Preferably, the adjustment component further includes a plurality of air holes arranged in an array on the roller, with the air holes in each row being staggered.

[0010] Preferably, the adjustment assembly further includes a rotary joint rotatably mounted at the rear end of the roller, with a flexible hose fixed at the rear end of the rotary joint, and the rear end of the flexible hose connected to a negative pressure device.

[0011] Preferably, the adjustment assembly further includes rollers installed on the left and right sides of the bottom of the shaft frame, and pads fixed on the left and right sides of the top of the extension frame to cooperate with the rollers.

[0012] Preferably, the auxiliary component further includes a vertical plate fixed to the right side of the rear end of the support plate, and an air knife is installed on the upper end of the vertical plate.

[0013] Preferably, the auxiliary component further includes a stand fixed to the left side of the rear end of the support plate, and an industrial camera is mounted on the upper end of the stand.

[0014] Beneficial effects

[0015] This invention provides a spinning direction adjustment structure to improve the tear strength of nonwoven fabrics. Compared with the prior art, it has the following advantages:

[0016] 1. When the fiber bundle from the spinning system falls onto the surface of the freely rotating roller, the extension and retraction of the cylinder drives the entire shaft frame to swing precisely around the axis of rotation through the connecting parts, thereby changing the tilt of the roller. During this process, as the fiber bundle rotates with the roller surface, its falling path is given a lateral velocity component due to the dynamic change of the contact surface angle. After it finally leaves the roller, it lays on the forming curtain in a non-vertical, wavy trajectory. By breaking the parallel arrangement of the fibers, the fiber network path that resists the spread of tear stress is increased, thereby improving the tear strength of the final nonwoven fabric product.

[0017] 2. When the fiber bundle comes into contact with the roller surface, it is adsorbed through the air holes, preventing it from drifting or slipping when the direction of movement changes due to the swing of the cylinder-driven shaft frame. This ensures the reliability and consistency of the fiber turning process. At the same time, the staggered air hole array avoids the uniformity and symmetry of the adsorption force field, and can produce a slight and uneven pulling effect on the fiber bundle at the microscale, which helps to initially loosen and disperse the tightly packed fiber bundle. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2This is a schematic diagram of the auxiliary components in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure at the front end of the adjustment component in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure at the rear end of the adjustment component in this utility model.

[0022] In the diagram: 1. Support plate; 2. Directional mechanism; 21. Adjustment assembly; 211. Extension frame; 212. Rotary shaft; 213. Shaft bracket; 214. Roller; 215. Connector; 216. Shaft seat; 217. Cylinder; 218. Air hole; 219. Rotary joint; 2110. Hose; 2111. Roller; 2112. Pad; 22. Auxiliary assembly; 221. Vertical plate; 222. Air knife; 223. Frame; 224. Industrial camera. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0024] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a spinning direction adjustment structure for improving the tear strength of nonwoven fabrics, including a support plate 1, on which a direction mechanism 2 is provided for adjusting the laying direction of the fiber filaments, the direction mechanism 2 including:

[0025] Adjustment assembly 21 includes an extension frame 211 fixed on the left and right sides of the front end of the support plate 1. A shaft frame 213 is rotatably mounted on the upper end of the extension frame 211 via a rotating shaft 212. A roller 214 is rotatably mounted between the two ends of the shaft frame 213. A connector 215 is fixed to the front end of the shaft frame 213. A shaft seat 216 is fixed to the right side of the front end of the extension frame 211. A cylinder 217 is pivotally connected to the shaft seat 216, and the output end of the cylinder 217 is pivotally connected to the connector 215.

[0026] Auxiliary component 22 is disposed on support plate 1 and is used for monitoring the state of fiber filaments.

[0027] In this embodiment, when the fiber bundle from the spinning system falls onto the surface of the freely rotating roller 214, the telescopic movement of the cylinder 217 drives the entire shaft frame 213 to swing precisely around the rotating shaft 212 via the connector 215, thereby changing the tilt posture of the roller 214. During this process, as the fiber bundle rotates with the surface of the roller 214, its falling path is given a lateral velocity component due to the dynamic change of the contact surface angle, so that after it finally leaves the roller 214, it lays on the web forming curtain in a non-vertical, wavy trajectory. By breaking the parallel arrangement of the fibers, the fiber network path that resists the spread of tear stress is increased, thereby improving the tear strength of the final nonwoven fabric product.

[0028] Specifically, the adjustment component 21 also includes a number of air holes 218 arranged in an array on the roller 214, and the air holes 218 in each row are staggered.

[0029] In this embodiment, when the fiber bundle contacts the surface of the roller 214, the fiber is adsorbed through the air holes 218, preventing it from drifting or slipping when the direction of movement is changed due to the swing of the cylinder 217 driving the shaft frame 213. This ensures the reliability and consistency of the fiber turning process. At the same time, the staggered array of air holes 218 avoids the uniformity and symmetry of the adsorption force field, and can produce a slight and uneven pulling effect on the fiber bundle at the microscale, which helps to initially loosen and disperse the dense fiber bundle.

[0030] Specifically, the adjustment assembly 21 also includes a rotary joint 219 rotatably mounted at the rear end of the roller 214, with a hose 2110 fixed at the rear end of the rotary joint 219, and the rear end of the hose 2110 connected to a negative pressure device.

[0031] In this embodiment, during the complex composite motion of the roller 214 simultaneously rotating itself and the overall oscillation caused by the cylinder 217 driving the shaft frame 213, the adsorption force generated by the negative pressure device can be continuously and stably transmitted to the interior of the high-speed rotating roller 214 through the stationary hose 2110 and rotary joint 219, thereby forming a uniform negative pressure field through the air holes 218 on its surface.

[0032] Specifically, the adjustment assembly 21 also includes rollers 2111 installed on the left and right sides of the bottom of the shaft bracket 213, and pads 2112 are fixed on the left and right sides of the top of the extension bracket 211 and cooperate with the rollers 2111.

[0033] In this embodiment, when the cylinder 217 drives the connecting piece 215 and then pushes the shaft frame 213 to adjust the angle, the roller 2111 rolls smoothly on the surface of the pad 2112, reducing the frictional resistance and wear generated by the movement.

[0034] Specifically, the auxiliary component 22 also includes a vertical plate 221 fixed to the right side of the rear end of the support plate 1, and an air knife 222 is installed on the upper end of the vertical plate 221.

[0035] In this embodiment, the high-speed, uniform linear airflow generated by the air knife 222 is used to intervene in the fiber bundles at the critical stage when they are about to leave the roller 214 and fall into the netting curtain after being changed in direction by the adjustment component 21. When this directional airflow acts on the fibers, it generates further disturbance and acceleration scattering effect, which makes the fibers, which already have a preliminary lateral velocity, more fully spread out and randomly distributed in the air, effectively breaking the possible clustering phenomenon of the fiber bundles.

[0036] Specifically, the auxiliary component 22 also includes a stand 223 fixed to the left side of the rear end of the support plate 1, and an industrial camera 224 is mounted on the upper end of the stand 223.

[0037] In this embodiment, an industrial camera 224 continuously captures images of the fiber bundles that are falling after being processed by the adjustment component 21 and the air knife 222, as well as the formed fiber web.

[0038] The working principle and usage process of this utility model are as follows: First, the fiber bundle from the upstream spinning system falls onto the surface of the roller 214; at this time, the negative pressure device connected to the rear end of the hose 2110 is started, and the adsorption force is continuously and stably transmitted to the interior of the high-speed rotating roller 214 through the rotary joint 219, so that the air holes 218 distributed on its surface form a uniform negative pressure field, thereby effectively adsorbing the fiber and preventing it from drifting.

[0039] Then, the output end of the cylinder 217 drives the connector 215 to make the entire shaft frame 213 swing around the rotating shaft 212. During this process, the roller 2111 at the bottom of the shaft frame 213 rolls smoothly on the pad 2112 of the extension frame 211, turning sliding friction into low-resistance rolling, ensuring the smoothness and precision of the swing action. The dynamic change of the inclination angle of the roller 214 makes the adsorbed fiber bundle obtain a lateral velocity component while rotating with the roller. When it leaves the adsorption area, it flies out in a non-vertical wave-shaped trajectory.

[0040] Finally, the auxiliary components 22 begin to work in concert: the air knife 222, mounted on the upper end of the vertical plate 221, sprays a high-speed, uniform linear airflow to further disturb and accelerate the scattering of the fibers that have just detached from the roller 214, further breaking up the clustering phenomenon and promoting the full spread and random distribution of the fibers in the air, greatly enhancing the randomness of the web formation. At the same time, the industrial camera 224, mounted on the upper end of the left vertical frame 223 at the rear end of the support plate 1, monitors the entire process in real time, capturing the falling trajectory of the fiber bundles, the laying status, and images of the initially formed fiber web; if the monitored fiber orientation or distribution uniformity does not meet the preset target, the system immediately provides intelligent feedback and dynamically adjusts the stroke of the cylinder 217 to change the tilt angle of the roller 214 or adjust the air pressure parameters of the air knife 222.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spunlaid nonwoven fabric tear strength improving filament orientation adjustment structure comprising a support plate (1), characterized in that: The support plate (1) is provided with a directional mechanism (2) for adjusting the laying direction of the fiber filaments. The directional mechanism (2) includes: The adjustment assembly (21) includes an extension frame (211) fixed on the left and right sides of the front end of the support plate (1). A shaft frame (213) is rotatably mounted on the upper end of the extension frame (211) via a rotating shaft (212). A roller (214) is rotatably mounted between the two ends of the shaft frame (213). A connector (215) is fixed at the front end of the shaft frame (213). A shaft seat (216) is fixed on the right side of the front end of the extension frame (211). A cylinder (217) is pivotally connected to the shaft seat (216), and the output end of the cylinder (217) is pivotally connected to the connector (215). An auxiliary component (22) is disposed on the support plate (1) and is used for monitoring the condition of the fiber filaments.

2. The spunbond web tear strength enhancing filament orientation adjustment structure of claim 1, wherein: The adjustment component (21) also includes a plurality of air holes (218) arranged in an array on the roller (214), and the air holes (218) in each row are staggered.

3. The spunbond web tear strength enhancing filament orientation adjustment structure of claim 1, wherein: The adjustment assembly (21) also includes a rotary joint (219) rotatably mounted at the rear end of the roller (214), with a hose (2110) fixed at the rear end of the rotary joint (219), and the rear end of the hose (2110) connected to a negative pressure device.

4. The spinning direction adjustment structure for improving the tear strength of nonwoven fabrics according to claim 1, characterized in that: The adjustment assembly (21) also includes rollers (2111) installed on the left and right sides of the bottom of the shaft frame (213), and pads (2112) are fixed on the left and right sides of the top of the extension frame (211) and cooperate with the rollers (2111).

5. The spinning direction adjustment structure for improving the tear strength of nonwoven fabrics according to claim 1, characterized in that: The auxiliary component (22) also includes a vertical plate (221) fixed to the right side of the rear end of the support plate (1), and an air knife (222) is installed on the upper end of the vertical plate (221).

6. The spinning direction adjustment structure for improving the tear strength of nonwoven fabrics according to claim 1, characterized in that: The auxiliary component (22) also includes a stand (223) fixed to the left side of the rear end of the support plate (1), and an industrial camera (224) is mounted on the upper end of the stand (223).

Images