Nine-roller water remover

Abstract

The application provides a nine-roller water removing device, and belongs to the technical field of medical devices. The nine-roller water removing device comprises a shell, an inlet arranged on one side of the shell, an outlet arranged on the opposite side of the inlet, a first roller body group and a second roller body group which are detachably arranged on the top inside of the shell, five rollers in the first roller body group, four rollers in the second roller body group, and the rollers in the first roller body group and the second roller body group are arranged in a cross manner. Single filament material capable of being absorbed is wound on the upper and lower roller groups in an "S" shape. The rollers are hollow cavities, the surfaces of the rollers are provided with a plurality of roller surface micropore structures, the tail portions of each roller are connected with a negative pressure generating system, and a negative pressure environment is formed in the rollers. The tail portions of the rollers are also connected with a drainage system. In the application, the micropores on the roller surfaces can effectively remove the surface moisture of the filaments after the filaments are pulled by the nine rollers, so that the filaments are prevented from being adhered and wound on the rollers. The filaments are pulled by the large-diameter roller surfaces, and the residence time is about 40 seconds, so that the temperature of the inner and outer layers of the filaments can be uniformly balanced, and the uniform drawing in the subsequent process is facilitated.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a nine-roller water separator. Background Technology

[0002] In the production process of absorbable monofilament materials, after the nascent fibers are cooled in a water bath, a large amount of moisture will adhere to them due to the material's inherent soft elasticity and high surface wettability. If this surface moisture is not effectively removed, the yarn will become significantly sticky on the subsequent traction rollers, leading to problems such as tangling and deformation, which seriously affects the production stability and product consistency of subsequent processes.

[0003] Currently, specialized equipment for absorbable monofilament materials is not yet mature, and the industry generally uses traditional non-absorbent monofilament production equipment. This type of equipment typically features five or seven sets of smooth-surfaced traction rollers, a design that cannot meet the specific requirements of absorbable monofilament materials: 1. The smooth roller surfaces lack an active water removal mechanism, failing to effectively remove moisture from the yarn surface; 2. Conventional traction rollers have small diameters, resulting in insufficient contact time between the yarn and the rollers, leading to uneven temperatures between the inner and outer layers; 3. Residual moisture exacerbates the adhesion between the yarn and the roller surface, frequently causing roller entanglement accidents, forcing shutdowns for cleaning, and reducing production efficiency.

[0004] Although existing traction systems perform stably in the production of non-absorbent materials, their structure and working principle cannot be adapted to the physical properties of absorbable monofilament materials (such as high hydrophilicity and low stiffness).

[0005] Therefore, there is an urgent need to develop a traction device that combines efficient water removal and temperature equalization to solve the problem of roll wrapping and ensure the uniformity of subsequent drafting processes. Summary of the Invention

[0006] Purpose of the invention: The purpose of this invention is to address the shortcomings of existing technologies by providing a nine-roller dewatering device, comprising nine sets of large-diameter traction rollers. The yarn path is densely covered with micro-pinholes, and the traction rollers have a hollow structure. The tail end is connected to a high-power fan via a rotary joint for negative pressure dewatering. After the yarn is drawn by the nine rollers, the micropores on the roller surface can effectively remove surface moisture and prevent adhesion and entanglement. In addition, the large-diameter roller surface draws the yarn, and the residence time is long, about 40 seconds, which can evenly balance the temperature of the inner and outer layers of the yarn, which is beneficial for uniform stretching in subsequent processes and stable finished product performance.

[0007] Technical Solution: The present invention discloses a nine-roller dewatering device, comprising a housing, an inlet for absorbing monofilament material on one side of the housing, and an outlet for absorbing monofilament material on the opposite side of the inlet. Two rows of rollers are detachably arranged on the upper part of the housing: a first roller group in the upper row and a second roller group in the lower row. The first roller group has five rollers, and the second roller group has four rollers. The rollers of the first and second roller groups are arranged alternately. The absorbable monofilament material is wound in an "S" shape around the upper and lower roller groups, extending the contact path.

[0008] The roller body is a hollow cavity with a filament channel on its surface. Several micro-pore structures are evenly distributed on the filament channel. The tail of each roller body is connected to a negative pressure generation system through a rotary joint. The negative pressure generation system draws in a negative pressure environment inside the roller body. The tail of the roller body is also connected to a drainage system.

[0009] Furthermore, guide wheels are provided at the inlet and outlet respectively. The guide wheels are used to guide the absorbable monofilament material to wind around the nine rollers in sequence. The guide wheels can constrain the angle of the monofilament entering the roller, ensure accurate winding, reduce the risk of yarn deviation, and reduce wear on the edge of the roller.

[0010] Furthermore, the roller body is a large-diameter roller body, with a diameter range of 200-500mm; increasing the roller body diameter can increase the monofilament wrap angle and extend the residence time.

[0011] Furthermore, the pore size range of the microporous structure on the roller surface is 0.1–0.5 mm, and the pore density of the microporous structure on the roller surface is 50–200 pores / cm³. 2 The micropore size is smaller than the diameter of the monofilament, which can avoid the filament being sucked up and can achieve water film peeling without damaging the monofilament.

[0012] Furthermore, the drainage system includes a drain pipe connected to the rotary joint. One end of the drain pipe is connected to the rotary joint, and the other end is connected to a water storage tank. The water storage tank is equipped with a drain outlet. The drainage system is used to collect and discharge the liquid water from the negative pressure generation system. The negative pressure adsorbed water is sealed and discharged through the rotary joint, and then collected by gravity into the water storage tank, providing continuous drainage capability while preventing water vapor from flowing back to the roller.

[0013] Furthermore, the roller body is detachably fixed to the wall panel of the outer casing via ordinary bearings.

[0014] Furthermore, the roller located in the middle of the wall panel is detachably fixed to the wall panel of the outer casing via a spring bearing. The spring bearing is a compression spring installed between a regular bearing and the wall panel. The compression spring allows the spring bearing to float vertically, with a vertical floating stroke range of 5–15 mm. When the tension of the monofilament changes abruptly, the compression spring can compress or rebound, causing the roller to slightly shift and buffer the impact, automatically balancing the tension difference on both sides.

[0015] Furthermore, the negative pressure generation system is a high-power fan connected to the hollow cavity of the roller body via a rotary joint, and the air volume of the high-power fan is 1000–3000 m³ / h. 3 / h, a negative pressure of -5kPa to -20kPa is formed in the hollow cavity of the roller. The fan draws air out of the roller through the rotary joint, creating a negative pressure inside the roller. The micropores on the surface adsorb water attached to the yarn, and the liquid water flows into the drainage system. At the same time, the active suction of the fan replaces the passive scraping, which can prevent yarn deformation.

[0016] Beneficial effects: Compared with the prior art, the advantages of the present invention are as follows:

[0017] (1) The nine-roller cross layout in this invention can achieve dual optimization of deep water removal and temperature balance of absorbable monofilament materials. The five-roller cross arrangement at the top and four-roller at the bottom can make the absorbable monofilament materials form eight turns and wraps, extending the contact path and water removal time. At the same time, the center roller is a floating structure, which can automatically eliminate tension fluctuations and reduce the breakage rate.

[0018] (2) The present invention constructs a closed-loop water management mechanism through negative pressure and drainage system, which ensures the long-term reliable operation of the system while effectively removing water. Attached Figure Description

[0019] Figure 1 This is a front structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0021] Figure 3 This is a side view of the present invention. Detailed Implementation

[0022] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments described.

[0023] like Figure 1 The nine-roller dewatering device shown includes a housing 1. An inlet 101 for absorbing monofilament material 13 is provided on one side of the housing 1, and an outlet 102 for absorbing monofilament material 13 is provided on the opposite side of the inlet 101. Guide wheels 6 are respectively provided at the inlet 101 and the outlet 102. The guide wheels 6 are used to guide the absorbable monofilament material to wind around the rollers of the nine rollers in sequence.

[0024] The upper part of the outer casing 1 is detachably equipped with two rows of rollers, namely the first roller group 2 located in the upper row and the second roller group 3 located in the lower row. The first roller group 2 has five rollers and the second roller group 3 has four rollers. The rollers of the first roller group 2 and the second roller group 3 are arranged in a cross pattern. The rollers are large-diameter rollers.

[0025] The roller body is a hollow cavity, and its surface is provided with filament channels 12, on which several roller surface micropore structures 4 are evenly distributed. Each roller body's tail is connected to a negative pressure generating system via a rotary joint 5. This system draws moisture from the monofilament material into the roller body, creating a negative pressure environment that allows moisture to be absorbed and enters the system through the roller surface micropores. A drainage system is also connected to the tail of the roller body. The roller body is detachably fixed to the wall panel of the outer casing 1 via a standard bearing 1001. The roller body located in the middle of the wall panel is detachably fixed to the wall panel of the outer casing 1 via a spring bearing 1002. The spring bearing 1002 consists of a compression spring between the standard bearing 1001 and the wall panel, allowing the spring bearing 1002 to float vertically within a range of 5–15 mm.

[0026] like Figure 2 and Figure 3 As shown, the drainage system includes a drain pipe 7 connected to the rotary joint 5. One end of the drain pipe 7 is connected to the rotary joint 5, and the other end of the drain pipe 7 is connected to the water storage tank 8. The water storage tank 8 is provided with a drain outlet 9. The drainage system is used to collect and discharge the liquid water of the negative pressure generation system.

[0027] The negative pressure generation system is a high-power fan 11 connected to the hollow cavity of the roller body via a rotary joint 5. The air volume of the high-power fan 11 is 1000–3000 m³ / h. 3 / h, a negative pressure of -5kPa to -20kPa is formed in the hollow cavity of the roller.

[0028] To ensure that the monofilament remains on the roller for more than 40 seconds, the equipment parameters are set as follows: roller diameter D i Take 300mm, and the wrap angle θ of the monofilament on the roller. i The angle is 150°, the linear velocity of the single filament is v = 12 m / min, and the calculation formula is as follows:

[0029] t=360°·v∑i=19(Di·θi·π)

[0030] Workflow:

[0031] In the production workshop, after setting the production temperature and humidity, the nine-roller dewatering device is connected to the spinning production line. The inlet is connected to the outlet of the water cooling tank (monofilament temperature 40℃), and the outlet is connected to the drafting unit. The roller body is made of 304 stainless steel, with a diameter of 300mm. The roller surface micro-holes are laser-drilled, with a hole diameter of 0.3mm and a density of 100 holes / cm³. 2 The spring bearing pre-compression is set to 10mm; the fan is started in stages, and the pressure is increased in sequence from the inlet roller to the outlet roller according to the position of the roller body to carry out water removal operation.

[0032] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A nine-roller water separator, characterized in that: Includes an outer shell (1), one side of which is provided with an inlet (101) for absorbing monofilament material, and the opposite side of which is provided with an outlet (102) for absorbing monofilament material. The upper part of the inner shell (1) is provided with two rows of rollers, namely a first roller group (2) located in the upper row and a second roller group (3) located in the lower row. The first roller group (2) has five rollers, and the second roller group (3) has four rollers. The rollers of the first roller group (2) and the second roller group (3) are arranged in a cross pattern. The roller body is a hollow cavity, and the surface of the roller body is provided with a filament channel (12). A number of roller surface micropore structures (4) are evenly distributed on the filament channel (12). The tail of each roller body is connected to a negative pressure generating system through a rotary joint (5). The negative pressure generating system draws into the inside of the roller body to form a negative pressure environment. The tail of the roller body is also connected to a drainage system.

2. The nine-roller dewatering device according to claim 1, characterized in that: Guide wheels (6) are respectively provided at the inlet (101) and the outlet (102). The guide wheels (6) are used to guide the absorbable monofilament material to be wound around the nine rollers in sequence.

3. The nine-roller dewatering device according to claim 1, characterized in that: The roller body is a large-diameter roller body, and the diameter of the roller body ranges from 200 to 500 mm.

4. A nine-roller dewatering device according to claim 1, characterized in that: The pore size of the microporous structure (4) on the roller surface ranges from 0.1 to 0.5 mm, and the pore density of the microporous structure (4) on the roller surface is 50 to 200 pores / cm³. 2 .

5. A nine-roller dewatering device according to claim 1, characterized in that: The drainage system includes a drain pipe (7) connected to the rotary joint (5), one end of the drain pipe (7) is connected to the rotary joint (5), and the other end of the drain pipe (7) is connected to the water storage tank (8). The water storage tank (8) is provided with a drain outlet (9). The drainage system is used to collect and discharge the liquid water of the negative pressure generating system.

6. A nine-roller dewatering device according to claim 1, characterized in that: The roller is detachably fixed to the wall panel of the outer casing (1) via a common bearing (1001).

7. A nine-roller dewatering device according to claim 6, characterized in that: The roller located in the middle of the wall panel is detachably fixed to the wall panel of the outer casing (1) by a spring bearing (1002). The spring bearing (1002) is a compression spring provided between the ordinary bearing (1001) and the wall panel. The compression spring allows the spring bearing (1002) to float vertically, and the vertical floating stroke range is 5 to 15 mm.

8. A nine-roller dewatering device according to claim 1, characterized in that: The negative pressure generating system is a high-power fan (11) connected to the hollow cavity of the roller body via a rotary joint (5), and the air volume of the high-power fan (11) is 1000–3000 m³ / h. 3 / h, a negative pressure of -5kPa to -20kPa is formed in the hollow cavity of the roller.

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