A liquid storage cotton longitudinal forming device and forming method

Abstract

The application discloses a liquid storage cotton longitudinal forming device and a forming method, wherein the longitudinal forming device comprises a feeding part, a forming part, a discharging part and a cutting part arranged in sequence along the longitudinal direction, and the forming part comprises a hot oven which is provided with a plurality of vertical hot melting channels; the feeding part is used for conveying each group of fiber filaments into the corresponding vertical hot melting channel, so that each group of fiber filaments is heated and bonded into a shape through the corresponding vertical hot melting channel; the discharging part is used for conveying the formed liquid storage cotton to the cutting part, and then the liquid storage cotton is cut into a set length through the cutting part. The application realizes the uniform distribution of the fiber filaments in the vertical hot melting channel through the longitudinal movement and the forming process of the material, and then realizes the bending degree control of the fiber filaments through the proportion of the feeding speed and the discharging speed, effectively improves the liquid storage and liquid guiding performance of the liquid storage cotton, greatly improves the yield, and reduces the production cost.

Description

Technical Field

[0001] This invention relates to the field of liquid storage cotton manufacturing technology, and in particular to a longitudinal forming device and forming method for liquid storage cotton. Background Technology

[0002] Integrated liquid storage cotton (commonly known as cotton core, atomizing cotton core, filter cotton core, etc.) is a fiber bundle formed by combining multiple fine porous fiber threads. It is mainly used to realize the slow release of stored liquid and guide filtration. It is currently widely used in daily consumer products (such as fragrance diffusers, car perfume holders, etc.), electronic products (such as humidifiers, electronic cigarettes, robot vacuum cleaners, etc.), and medical products (such as laboratory pipettes, oxygen concentrators, humidification bottles, etc.).

[0003] Currently, the main method for preparing liquid storage cotton is the thermoforming traction method. For example, patent application number CN201810404266.0 discloses a cotton core rod forming machine, which includes a feeding section, a forming section, a discharging section, and a cutting section arranged sequentially along the material travel direction. The forming section includes a heating furnace with a row of horizontally distributed hot-melt channels. The feeding section is used to transport fiber filaments in groups to each hot-melt channel of the heating furnace. Each group of fiber filaments consists of multiple fiber filaments. Each group of fiber filaments is heated and bonded together into a cotton core rod through the hot-melt channels. The discharging section includes a first roller and a second roller driven by a motor. The first roller and the second roller rotate in opposite directions and provide a backward traction force by friction with the cotton core rod. The cutting section is used to cut the cotton core rod to a set length.

[0004] Therefore, in conventional cotton core forming machines, the material moves horizontally from feeding, forming, traction to cutting. This design is primarily for ease of material control. During horizontal feeding, although the guide holes on the guide support plate accurately guide the corresponding fiber filaments into the hot-melt channel, the filaments cannot be fully taut during feeding. Otherwise, the fibers after hot-melt forming will struggle to form a fine microporous structure. Consequently, the stranded fibers are prone to natural drooping under gravity, resulting in uneven distribution in the hot-melt channel—a looser top and denser bottom distribution—and even interweaving and interference, thus affecting the liquid storage and conduction properties of the finished product. Summary of the Invention

[0005] Purpose of the invention: To address the above-mentioned shortcomings, the present invention provides a longitudinal forming device and method for liquid storage cotton. By the longitudinal movement of the material and the forming process, the fiber filaments are uniformly distributed in the vertical hot-melt channel, thereby improving the liquid storage and liquid conduction performance of the liquid storage cotton, and at the same time greatly increasing the yield.

[0006] Technical solution: To achieve the above objectives, the present invention provides a longitudinal forming device for liquid storage cotton, comprising a feeding section, a forming section, a discharging section and a cutting section arranged sequentially along the longitudinal direction, wherein the forming section includes a hot drying oven, and the hot drying oven is provided with multiple vertical hot melting channels;

[0007] The feeding section is used to transport each group of fiber filaments into the corresponding vertical hot melt channel, so that each group of fiber filaments is heated and bonded into shape through the corresponding vertical hot melt channel.

[0008] The discharge section is used to transport the formed liquid storage cotton to the cutting section, and then the cutting section cuts the liquid storage cotton to a set length.

[0009] Specifically, the heating temperature of the vertical hot melt channel decreases segment by segment from top to bottom.

[0010] Specifically, the vertical hot-melting channel includes a preheating section, a melting section, and a heat-preserving section connected in sequence. The temperature of the preheating section is the highest, that is, more than 20°C above the melting point of the skin layer; the temperature of the melting section is medium, that is, within ±5°C of the melting point of the skin layer; and the temperature of the heat-preserving section is the lowest, that is, less than 75°C below the melting point of the skin layer.

[0011] Specifically, the hot oven includes an outer box, an internal heating device, and an intermediate insulation layer. The heating device includes multiple heating modules arranged longitudinally, with the heating temperature of each heating module decreasing from top to bottom. Each heating module has several heating holes that are connected vertically to form a vertical hot melting channel.

[0012] Specifically, a detachable shaping mold is provided at the outlet of the vertical hot melt channel. The shaping mold extends into the corresponding vertical hot melt channel and communicates with the corresponding vertical hot melt channel, thereby realizing the heat preservation and forming of the fiber filament.

[0013] Specifically, the feeding section includes a pair of horizontally arranged feed rollers, thereby achieving the traction and conveying of each group of fiber filaments by turning the feed rollers in opposite directions.

[0014] Specifically, the discharge section includes a pair of horizontally arranged discharge rollers, thereby achieving the traction and conveying of the formed liquid storage cotton by turning the discharge rollers in opposite directions.

[0015] Specifically, the cutting section includes a horizontally arranged cotton guide frame and a blade holder. The cotton guide frame has cotton guide holes corresponding to the vertical hot-melt channel, and the blade holder has cutting blades. The horizontal sliding of the blade holder drives the cutting blades to cut the liquid-storing cotton in the cotton guide holes.

[0016] Furthermore, the present invention also provides a molding method based on the above-mentioned longitudinal molding device for liquid storage cotton, comprising:

[0017] A. The feeding section conveys each group of fiber filaments to the corresponding vertical hot melt channel, so that each group of fiber filaments is heated and bonded into shape through the corresponding vertical hot melt channel.

[0018] B. The formed liquid storage cotton is pulled to the cutting section through the discharge section, and then the liquid storage cotton is cut to the set length through the cutting section.

[0019] The curvature of the fiber filaments in the vertical hot-melt channel is adjusted by controlling the ratio of the feeding speed to the discharge speed; that is, the greater the feed-to-discharge ratio, the greater the curvature of the fiber filaments.

[0020] Specifically, the ratio of the feeding speed to the discharging speed needs to be controlled within the range of 1.1 to 1.5.

[0021] Beneficial effects:

[0022] This invention achieves uniform distribution of fiber filaments within a vertical hot-melt channel through the longitudinal movement and forming process of the material. Furthermore, the curvature of the fiber filaments is controlled by adjusting the ratio of the feeding and discharging speeds, effectively improving the liquid storage and conduction performance of the liquid-absorbing cotton. This also significantly increases the yield and reduces production costs. In addition, the device has a simple structure, a high degree of automation, highly controllable process parameters, and a wide range of applications, demonstrating promising prospects. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the longitudinal forming device in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the feeding section in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the hot drying oven in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the material discharge section in an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the cutting part in an embodiment of the present invention. Figure 1 ;

[0028] Figure 6 This is a schematic diagram of the structure of the cutting part in an embodiment of the present invention. Figure 2 ;

[0029] The diagram includes: 1. Tooling bracket, 2. Feeding section, 3. Forming section, 4. Discharging section, 5. Cutting section, 21. Feed roller, 22. First servo motor, 23. Mounting bracket, 24. Locking screw, 25. Guide frame, 26. Distributing roller, 31. Hot drying oven, 32. Vertical hot melting channel, 33. External housing, 34. Heating device, 341. Preheating module, 342. Melting module, 343. Insulation module, 41. Discharging roller, 42. Second servo motor, 43. Mounting plate, 44. Locking screw, 45. Synchronous belt mechanism, 51. Cotton conveyor, 52. Cotton conveying hole, 53. Blade holder, 54. Cutting blade, 55. Drive cylinder, 56. Blade groove, 57. Guide groove. Detailed Implementation

[0030] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0031] Reference Figure 1 The present invention provides a longitudinal forming device for liquid storage cotton, comprising a feeding section 2, a forming section 3, a discharging section 4 and a cutting section 5 arranged sequentially along the longitudinal direction, wherein the forming section 3 includes a hot drying oven 31, and the hot drying oven 31 is provided with a plurality of vertical hot melting channels 32.

[0032] The feeding section 2 is used to transport each group of fiber filaments into the corresponding vertical hot melt channel 32, so that each group of fiber filaments is heated and bonded into shape through the corresponding vertical hot melt channel 32.

[0033] The discharge section 4 is used to pull the formed liquid storage cotton to the cutting section 5, and then the cutting section 5 cuts the liquid storage cotton to a set length.

[0034] For example, the feeding part 2, the forming part 3, the discharging part 4 and the cutting part 5 are arranged longitudinally on the tooling bracket 1, thereby realizing the longitudinal movement of the material.

[0035] Compared to transverse forming devices, in this invention, even if the stranded fiber filaments bend due to gravity, their circumferential distribution within the vertical hot-melt channel 32 remains essentially uniform. Therefore, the liquid storage and conduction properties of the final product fully meet the design requirements. Furthermore, this bending is necessary and controllable. The bending degree of the fiber filaments within the vertical hot-melt channel 32 can be adjusted by controlling the feeding and discharging speeds. Here, the bending degree is defined as the weight / length of the fiber filament per unit height. Extensive experimental data shows that the bending degree of the fiber filaments during the hot-melt process directly affects the performance of the finished product. It can be said that the greater the bending degree, the higher the porosity of the finished product, and the stronger its liquid storage and transverse conduction properties. Of course, this adjustment process is achieved under the premise that the fiber filaments can be evenly distributed. In transverse forming devices, the bending degree of the fiber filaments is affected by gravity, making precise control difficult, and the performance of the final product is hard to guarantee. Moreover, in transverse forming devices, if the bending degree of the fiber filaments is too large, the drooping fiber filaments are prone to touching the inner wall of the hot-melt channel, leading to overheating, and the final product will also be substandard.

[0036] Furthermore, the heating temperature of the vertical hot-melt channel 32 decreases gradually from top to bottom. Currently, the fiber filaments used to process liquid storage cotton are generally of a core-sheath composite structure, that is, the outer sheath has a low melting point and the inner core has a high melting point. Therefore, the heating temperature at the feed inlet is the highest, above the sheath melting point, in order to improve heat transfer efficiency and achieve efficient preheating of the fiber filaments. At the same time, it can evaporate the moisture in the fiber filaments as soon as possible to avoid affecting the subsequent hot-melt process. After preheating, the heating temperature reaches about the sheath melting point. At this time, the sheath of the fiber filaments gradually melts, while the high-melting-point inner core does not dissolve, thus forming multiple strands of fiber filaments with only the inner core remaining. After hot-melt, the heating temperature drops below the sheath melting point. At this time, the sheath of the fiber filaments gradually solidifies and bonds together, so that the curved and fluffy parts form a certain porosity and generate a stable capillary water absorption effect.

[0037] Compared to a vertical hot-melt channel 32, a horizontally positioned hot-melt channel makes it difficult to achieve uniform circumferential heating of the fiber filaments. This is because the fiber filaments must be completely suspended within the hot-melt channel (whether horizontal or vertical), meaning they do not undergo any heat conduction with the channel's inner wall. Therefore, the heating of the fiber filaments occurs through heat convection and radiation, with heat convection primarily relying on air for heat transfer. Since heated air rises, in a horizontal hot-melt channel, the upper airflow temperature is often higher than the lower airflow temperature. This makes it difficult to achieve uniform circumferential heating of the fiber filaments within the channel, thus affecting the liquid storage performance of the finished product. However, in a vertical hot-melt channel 32, even if the heated air rises, causing heat to conduct upwards, it will not affect the aforementioned hot-melt molding process because the heating temperature within the channel itself needs to decrease gradually downwards.

[0038] Specifically, the vertical hot-melt channel 32 includes a preheating section, a melting section, and a heat-preserving section connected in sequence. The preheating section has the highest temperature, which is more than 20°C above the melting point of the outer layer, thereby preheating the fiber filaments. The melting section has a medium temperature, which is within ±5°C of the melting point of the outer layer, thereby melting the fiber filaments. The heat-preserving section has the lowest temperature, which is less than 75°C below the melting point of the outer layer, thereby heat-preserving and shaping the fiber filaments. In addition, in other embodiments, the vertical hot-melt channel 32 can be divided into more temperature sections according to a progressively decreasing pattern to achieve more precise temperature control, which is not limited here.

[0039] Reference Figure 3 The hot oven 31 includes an outer casing 33, an internal heating device 34, and an intermediate insulation layer. The heating device 34 includes multiple heating modules arranged longitudinally, each with several heating holes that are sequentially connected vertically, forming a vertical hot-melt channel 32. For example, the heating device 34 includes three heating modules arranged longitudinally: a preheating module 341, a melting module 342, and an insulation module 343. Each module maintains a heating temperature, so that the heating temperature decreases progressively from top to bottom. Each module has six heating holes that are sequentially connected vertically, forming six horizontally distributed vertical hot-melt channels 32. Each heating module includes two relatively closed aluminum alloy heating plates with heating holes between them. Heating wires and thermocouples are embedded in the heating plates to achieve electric heating control.

[0040] Specifically, a shaping mold (not shown in the figure) is provided at the outlet of the vertical hot-melt channel 32 to achieve the curing and shaping of the fiber filaments. Furthermore, the shaping mold extends into the corresponding vertical hot-melt channel 32 (i.e., the insulation section) and communicates with it, thereby achieving the heat-insulating shaping of the fiber filaments, which can also be described as a deep-baking process. Compared to direct cooling shaping, this heat-insulating shaping method is more conducive to the uniform shaping of the fiber filaments and can effectively improve the smoothness of the outer surface of the liquid-retaining cotton. This is because, compared to the hot-melt channel, the pores of the shaping mold are smaller. This is to achieve the compression and curing of the fiber filaments. If the curing temperature is too low at this time, the fiber filaments are prone to sticking to the inner wall of the shaping mold under pressure, resulting in a larger roughness on the outer surface of the finished product. Furthermore, the shaping mold is detachably fixed at the outlet of the vertical hot-melt channel 32, so that the corresponding shaping mold can be replaced according to different product models, effectively expanding the scope of application and reducing production costs.

[0041] Specifically, the feeding section 2 includes a pair of horizontally arranged feed rollers 21, thereby achieving the traction and conveying of each group of fiber filaments by means of feed rollers 21 that rotate in opposite directions, so as to ensure that the feeding speed of each group of fiber filaments is the same. For example, refer to Figure 2The feeding section 2 includes a pair of horizontally arranged feed rollers 21. The two feed rollers 21 are driven in opposite directions by a first servo motor 22, and the distance between the two feed rollers 21 is adjustable to accommodate different counts of stranded fiber filaments. To ensure the parallelism between the feed rollers 21, several linear bearings are provided between the mounting frames 23 of the two feed rollers 21, and the distance is adjusted synchronously by locking screws 24 at both ends. Furthermore, a guide frame 25 is provided above the feed rollers 21, and the guide frame 25 has guide holes corresponding to the vertical heat-melting channels 32, thereby accurately guiding each group of fiber filaments into the corresponding vertical heat-melting channels 32. In this embodiment, each vertical heat-melting channel 32 corresponds to two groups of fiber filaments, that is, two guide holes. Therefore, a separating roller 26 is also provided below the feed rollers 21 to separate the two groups of fiber filaments corresponding to the channel for feeding, thereby avoiding the two groups of fiber filaments in the channel from gathering together and being difficult to heat evenly.

[0042] Specifically, the discharge section 4 includes a pair of horizontally arranged discharge rollers 41, thereby achieving the traction and conveying of the formed liquid storage cotton by rotating the discharge rollers 41 in opposite directions, so as to ensure that the discharge speed of each group of liquid storage cotton is the same. For example, refer to Figure 4 The discharge section 4 includes two pairs of horizontally arranged discharge rollers 41, one above the other. The lower pair of discharge rollers 41 are driven in opposite directions by a second servo motor 42. The two vertically distributed pairs of discharge rollers 41 ensure the straightness of the formed liquid storage cotton. Furthermore, the distance between the two pairs of discharge rollers 41 can be adjusted synchronously to accommodate different sizes of formed liquid storage cotton. To ensure the parallelism of the two pairs of discharge rollers 41, the corresponding upper and lower discharge rollers 41 are mounted on the same mounting plate 43. Several linear bearings are provided between the two mounting plates 43, and the distance is adjusted by locking screws 44 between the two mounting plates 43. To ensure synchronous locking of the locking screws 44, a synchronous belt mechanism 45 is used to achieve synchronous transmission between the locking screws 44. In addition, a grass strip is fitted onto the discharge rollers 41 to improve friction and traction.

[0043] Specifically, the cutting section 5 includes a horizontally arranged cotton guide frame 51 and a blade holder 53. The cotton guide frame 51 has cotton passage holes 52 corresponding to the vertical heat-melting channel 32, and the blade holder 53 has a cutting blade 54. The horizontal sliding of the blade holder 53 drives the cutting blade 54 to cut the liquid-storing cotton in the cotton passage holes 52. For example, refer to Figure 5 The cotton-passing frame 51 is horizontally mounted on the tooling bracket 1. The blade holder 53, located inside the cotton-passing frame 51, is horizontally slidably connected to the tooling bracket 1 via several linear bearings, and the horizontal drive of the blade holder 53 is achieved by the drive cylinder 55. The cotton-passing frame 51 has two interconnected cotton-passing holes 52, and a blade groove 56 is provided between the two layers of cotton-passing holes 52 for the cutting blade 54 to pass through, so as to ensure the accuracy of cutting. Further, refer to Figure 6 The cotton feeder 51 is provided with a guide groove 57 that tapers downwards, thereby accurately guiding the liquid-storing cotton into the cotton feeder hole 52.

[0044] Furthermore, the present invention also provides a forming method based on the above-mentioned longitudinal forming device for liquid storage cotton, specifically including:

[0045] S1. Each group of fiber filaments is conveyed to the corresponding vertical hot melt channel 32 through the feeding part 2, so that each group of fiber filaments is heated and bonded to form through the corresponding vertical hot melt channel 32.

[0046] S2. The formed liquid storage cotton is pulled to the cutting section 5 through the discharge section 4, and then the liquid storage cotton is cut to a set length through the cutting section 5.

[0047] Specifically, the curvature of the fiber filaments within the vertical hot-melt channel 32 is adjusted by controlling the ratio of the feed rate to the discharge rate. A higher feed-to-discharge ratio results in greater fiber curvature, effectively optimizing the liquid storage and conduction properties of the finished product. Generally, the ratio of feed rate to discharge rate needs to be controlled within the range of 1.1 to 1.5. Excessive curvature can cause the fiber filaments to easily touch the inner wall of the channel, leading to substandard finished products. Conversely, insufficient curvature makes it difficult for the finished product to meet design requirements for liquid storage and conduction properties.

[0048] The following comparison test uses the oil-absorbing cotton in e-cigarettes as an example to compare the oil-absorbing cotton (with identical specifications including cross-sectional area, length, yarn type, and yarn count) produced by transverse forming devices and longitudinal forming devices. The test items include:

[0049] A. The feed-to-discharge speed ratio of the oil-absorbing cotton produced by the transverse forming device is 1.2;

[0050] B. The feed-to-discharge speed ratio of the oil-absorbing cotton produced by the transverse forming device is 1.3;

[0051] C. The feed-to-discharge speed ratio of the oil-absorbing cotton produced by the longitudinal forming device is 1.2;

[0052] D. The feed-to-discharge speed ratio of the oil-absorbing cotton produced by the longitudinal forming device is 1.3;

[0053] E. The feed-to-discharge speed ratio of oil-absorbing cotton produced by the longitudinal forming device is 1.5.

[0054] The test results for the above test items are shown in the table below:

[0055] Test Project A B C D E Open porosity (%) 85.7 87.2 87.8 89.7 94.44 Absorption ratio 13.7 14.1 14.3 14.8 15.4 E-liquid utilization rate (%) 82.3 83.7 85.3 89.6 95.2

[0056] In the table above, the open porosity was obtained using a MAY-Entris20 porosity analyzer; the liquid absorption ratio was calculated by placing the sample in e-liquid and allowing it to absorb e-liquid naturally for 5 minutes, then removing it and letting it stand for 2 hours until it stopped dripping e-liquid, and then dividing the weight of the sample by its initial weight; the e-liquid utilization rate was determined by assembling the sample into an e-cigarette device, filling it with 75% of its volume, and conducting a vaping test using an e-cigarette vaping machine. The vaping flow rate was set to 25 ml / s, the vaping interval was 8 seconds, and the sample was removed and weighed after a burnt smell was detected, and the weight of the consumed e-liquid was calculated.

[0057] As can be seen from the table above, for oil-absorbing cotton produced by the same forming device, a higher feed-to-discharge speed ratio, i.e., a greater curvature of the fiber filaments within the hot-melt channel, results in stronger oil-absorbing and transverse oil-guiding performance. At the same feed-to-discharge speed ratio, oil-absorbing cotton produced by the longitudinal forming device exhibits significantly improved oil-absorbing and oil-guiding performance compared to that produced by the transverse forming device. Furthermore, the longitudinal forming device can achieve a wider range of feed-to-discharge speed ratios than the transverse forming device. Generally, transverse forming devices struggle to achieve feed-to-discharge speed ratios above 1.4, thus significantly limiting the oil-absorbing and oil-guiding performance of their products.

[0058] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for longitudinally forming liquid storage cotton, characterized in that, include: A. The feeding section conveys each group of fiber filaments from top to bottom into the corresponding vertical hot melt channel, so that each group of fiber filaments is heated and bonded into shape through the corresponding vertical hot melt channel; B. The formed liquid storage cotton is pulled to the cutting section through the discharge section, and then the liquid storage cotton is cut to the set length through the cutting section. The feeding section, forming section, discharging section and cutting section are arranged longitudinally. The forming section includes a hot drying oven, which is provided with multiple vertical hot melting channels. The heating temperature of the vertical hot melting channels decreases segment by segment from top to bottom. The curvature of the fiber filaments in the vertical hot melt channel can be adjusted by controlling the ratio of the feed rate to the discharge rate; that is, the greater the feed-to-discharge ratio, the greater the curvature of the fiber filaments. The ratio of the feeding speed to the discharging speed is controlled within the range of 1.1 to 1.

5.

2. A liquid storage cotton longitudinal forming apparatus using the liquid storage cotton longitudinal forming method of claim 1, characterized in that, It includes a feeding section, a forming section, a discharging section, and a cutting section arranged sequentially along the longitudinal direction.

3. The longitudinal forming device for liquid storage cotton according to claim 2, characterized in that, The vertical hot-melting channel includes a preheating section, a melting section, and a heat-preserving section connected in sequence. The temperature of the preheating section is the highest, which is more than 20°C above the melting point of the skin layer; the temperature of the melting section is medium, which is within ±5°C of the melting point of the skin layer; and the temperature of the heat-preserving section is the lowest, which is less than 75°C below the melting point of the skin layer.

4. The longitudinal forming device for liquid storage cotton according to claim 2, characterized in that, The hot drying oven includes an outer box, an internal heating device, and an intermediate insulation layer. The heating device includes multiple heating modules arranged longitudinally, with the heating temperature of each heating module decreasing from top to bottom. Each heating module has several heating holes that are connected vertically to form a vertical hot melting channel.

5. The longitudinal forming device for liquid storage cotton according to claim 2, characterized in that, The vertical hot melt channel is provided with a detachable shaping mold at its outlet. The shaping mold extends into the corresponding vertical hot melt channel and is connected to the corresponding vertical hot melt channel, thereby realizing the heat preservation and forming of the fiber filament.

6. The longitudinal forming device for liquid storage cotton according to claim 2, characterized in that, The feeding section includes a pair of horizontally arranged feed rollers, thereby achieving the traction and conveying of each group of fiber filaments by turning the feed rollers in opposite directions.

7. The longitudinal forming device for liquid storage cotton according to claim 2, characterized in that, The discharge section includes a pair of horizontally arranged discharge rollers, thereby achieving the traction and conveying of the formed liquid storage cotton by turning the discharge rollers in opposite directions.

8. The longitudinal forming device for liquid storage cotton according to claim 2, characterized in that, The cutting section includes a horizontally arranged cotton guide frame and a blade holder. The cotton guide frame has cotton guide holes corresponding to the vertical hot-melt channel, and the blade holder has cutting blades. The horizontal sliding of the blade holder drives the cutting blades to cut the liquid-storing cotton in the cotton guide holes.

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