Device for continuously preparing non-woven fabric through electrostatic spinning

Abstract

The utility model discloses a device for continuously preparing non-woven fabrics by electrostatic spinning, which relates to the technical field of electrostatic spinning and comprises a drying box, a fixed partition plate is fixedly mounted in the drying box and divides the drying box into an upper drying cavity and a lower heating cavity, and a plurality of guide rollers are rotatably mounted in the drying cavity. A feeding port and a discharging port which penetrate into the drying cavity are symmetrically formed in the outer side wall of the drying box, a plurality of electric heating pipes are fixedly installed in the heating cavity, a uniform heating assembly is arranged in the drying cavity, base cloth is arranged among the multiple guide rollers, the base cloth enters the drying cavity through the feeding port, and the base cloth leaves the drying cavity through the discharging port. By arranging the uniform heating assembly, hot air in the heating cavity enters the air outlet pipe through the air guide pipe, hot air in the air outlet pipe is discharged from the air outlet holes, and the hot air is directly contacted with the air uniform arc plate, so that the hot air is uniformly distributed in the drying cavity, and the hot air is prevented from directly impacting base cloth.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic spinning, in particular to a device for continuously preparing non-woven fabrics by electrostatic spinning. Background Art

[0002] Electrospinning is a special fiber manufacturing process in which a polymer solution or melt is jet-spun in a strong electric field. Under the action of the electric field, the droplet changes from a sphere to a cone (i.e., a "Taylor cone"), and fiber filaments are extended from the tip of the cone. This method can produce polymer filaments with nanometer diameters. Most of the electrospinning equipment currently available on the market are small experimental equipment with low output. There are also some electrospinning equipment used for mass production, but the existing equipment is not mature enough.

[0003] Application number: CN202020164146.0 discloses a production line for continuously preparing non-woven fabrics by electrospinning, including a base fabric unwinding device, a base fabric unwinding traction device, an electrospinning device, a drying device, a base fabric winding traction device and a base fabric winding device, and also includes a liquid supply vehicle and a constant temperature and humidity machine, wherein the liquid supply vehicle and the constant temperature and humidity machine are independent of the electrospinning device, the liquid supply vehicle is connected to the electrospinning device through a liquid feed conduit, and the constant temperature and humidity machine is connected to the electrospinning device through a constant temperature and humidity gas conduit. Since the liquid supply vehicle is independent of the main body of the production line, it is not only convenient to add liquid feed, but also greatly facilitates maintenance. The utility model can realize the continuous, large-scale and stable preparation of non-woven fabrics. At the same time, the device has a high degree of automation and a large output. By setting a rewinding and unwinding device, a spinning device and a drying device, the non-woven fabric can be formed at one time, and the production efficiency is greatly improved.

[0004] However, the hot air generator of the above device is connected to the air distributor through a hot air duct, so that the hot air is blown directly to the base fabric, which may cause impact on the fragile fiber structure. Therefore, it is necessary to propose a device for continuously preparing non-woven fabrics by electrospinning. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a device for continuously preparing non-woven fabrics by electrostatic spinning.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A device for continuously preparing non-woven fabrics by electrospinning, comprising a drying box, wherein a fixed partition is fixedly installed in the drying box, the fixed partition divides the drying box into an upper drying chamber and a lower heating chamber, a plurality of guide rollers are rotatably installed in the drying chamber, a feed port and a discharge port that penetrate into the drying chamber are symmetrically arranged on the outer side wall of the drying box, a plurality of electric heating tubes are fixedly installed in the heating chamber, a uniform heating component is arranged in the drying chamber, a base cloth is arranged between the plurality of guide rollers, the base cloth enters the drying chamber from the feed port, and the base cloth leaves the drying chamber from the discharge port.

[0008] Preferably, the uniform heating assembly comprises a mounting frame fixedly mounted on the inner wall of the drying box, a plurality of air outlet pipes are fixedly mounted between the mounting frames, the plurality of air outlet pipes are connected to each other through a connecting pipe, and the air outlet pipe located at the bottom is connected to a plurality of air guide pipes;

[0009] The other end of the air guide pipe passes through the fixed partition to the heating chamber, and a plurality of air outlet holes are evenly and evenly opened on the air outlet pipe. A uniform air arc plate is fixedly installed on the outer wall of the air outlet pipe, and the air outlet holes are directly opposite to the inner wall of the uniform air arc plate;

[0010] It is used to evenly distribute the hot air in the drying chamber. The hot air in the heating chamber enters the air outlet pipe through the air guide pipe, and the hot air in the air outlet pipe is discharged from the air outlet hole. The hot air directly contacts the air arc plate, so that the hot air is evenly distributed in the drying chamber, avoiding the hot air directly impacting the base fabric.

[0011] Preferably, an air intake pump is fixedly installed on the outer wall of the drying box, the air intake pump is connected to an air intake pipe, the air intake pump is connected to an air delivery pipe, the other end of the air delivery pipe passes through the outer wall of the drying box to the heating chamber, a filter screen is fixedly installed in the heating chamber, and the end of the air delivery pipe is arranged below the filter screen;

[0012] It is used to transport external gas to the heating chamber for heating. The air intake pump is started, and the external air enters the heating chamber from the air intake pipe and the air delivery pipe. The electric heating pipe heats the air, and the filter plate filters the dust in the air.

[0013] Preferably, a vacuum pump is fixedly installed at the top of the drying box, a suction hood is fixedly installed at the top of the drying box, the vacuum pump is connected to a suction pipe, the end of the suction pipe is connected to the suction hood, and the vacuum pump is connected to an exhaust pipe;

[0014] It is used to discharge the relatively humid gas in the drying box. Start the vacuum pump, and the relatively humid gas in the drying box will be discharged through the suction hood, suction pipe and exhaust pipe to avoid the generation of condensed water.

[0015] Preferably, a high temperature warning sign is fixedly mounted on the outer side wall of the drying box.

[0016] The utility model has the following beneficial effects:

[0017] 1. By setting up a uniform heating component, the hot air in the heating chamber enters the air outlet pipe through the air guide pipe, and the hot air in the air outlet pipe is discharged from the air outlet hole. The hot air directly contacts the uniform air arc plate, so that the hot air is evenly distributed in the drying chamber, avoiding the hot air directly impacting the base fabric.

[0018] 2. By setting up an air intake pump and an air exhaust pump, the outside air enters the heating chamber from the air intake pipe and the air delivery pipe, the electric heating pipe heats the air, the filter plate filters the dust in the air, and the relatively humid gas in the drying box is discharged through the suction hood, the suction pipe and the exhaust pipe to avoid the generation of condensed water. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the external structure of a device for continuously preparing non-woven fabrics by electrospinning proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of a device for continuously preparing non-woven fabrics by electrospinning proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the drying box of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the uniform heating component of the utility model.

[0023] In the figure: 1. Drying box; 11. Drying chamber; 12. Heating chamber; 13. Feed inlet; 14. Discharge outlet; 2. Fixed partition; 3. Guide roller; 4. Electric heating tube; 5. Uniform heating component; 51. Mounting frame; 52. Air outlet pipe; 53. Connecting pipe; 54. Air guide pipe; 55. Air outlet hole; 56. Air uniform arc plate; 6. Base cloth; 7. Air intake pump; 71. Air intake pipe; 72. Air delivery pipe; 73. Filter screen; 8. Vacuum pump; 81. Suction hood; 82. Suction pipe; 83. Exhaust pipe; 9. High temperature warning sign. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] Reference Figure 1-4 A device for continuously preparing non-woven fabrics by electrospinning comprises a drying box 1, a fixed partition 2 is fixedly installed in the drying box 1, the fixed partition 2 divides the drying box 1 into an upper drying chamber 11 and a lower heating chamber 12, a plurality of guide rollers 3 are rotatably installed in the drying chamber 11, a feed port 13 and a discharge port 14 penetrating into the drying chamber 11 are symmetrically arranged on the outer wall of the drying box 1, a plurality of electric heating tubes 4 are fixedly installed in the heating chamber 12, a uniform heating component 5 is arranged in the drying chamber 11, a base fabric 6 is arranged between the plurality of guide rollers 3, the base fabric 6 enters the drying chamber 11 from the feed port 13, and the base fabric 6 leaves the drying chamber 11 from the discharge port 14.

[0027] The uniform heating component 5 includes a mounting frame 51 fixedly mounted on the inner wall of the drying box 1 , and a plurality of air outlet pipes 52 are fixedly mounted between the mounting frames 51 . The plurality of air outlet pipes 52 are connected to each other through a connecting pipe 53 , and the air outlet pipe 52 at the bottom is connected to a plurality of air guide pipes 54 .

[0028] The other end of the air guide pipe 54 passes through the fixed partition 2 to the heating chamber 12. A plurality of air outlet holes 55 are evenly and equidistantly formed on the air outlet pipe 52. An air uniforming arc plate 56 is fixedly mounted on the outer wall of the air outlet pipe 52. The air outlet holes 55 face the inner wall of the air uniforming arc plate 56.

[0029] An air intake pump 7 is fixedly installed on the outer wall of the drying box 1, and the air intake pump 7 is connected to an air intake pipe 71. The air intake pump 7 is connected to an air supply pipe 72. The other end of the air supply pipe 72 passes through the outer wall of the drying box 1 to the heating chamber 12. A filter screen plate 73 is fixedly installed in the heating chamber 12, and the end of the air supply pipe 72 is arranged below the filter screen plate 73.

[0030] An air pump 8 is fixedly installed at the top of the drying box 1, an air suction hood 81 is fixedly installed at the top of the drying box 1, the air pump 8 is connected to an air suction pipe 82, the end of the air suction pipe 82 is connected to the air suction hood 81, and the air pump 8 is connected to an exhaust pipe 83.

[0031] A high temperature warning sign 9 is fixedly mounted on the outer wall of the drying box 1 .

[0032] In the utility model, the air intake pump 7 and the electric heating tube 4 are started, and the outside air enters the heating chamber 12 from the air intake pipe 71 and the air delivery pipe 72, the electric heating tube 4 heats the air, and the filter plate 73 filters the dust in the air. After a period of time, the hot air in the heating chamber 12 enters the air outlet pipe 52 through the air guide pipe 54, and the hot air in the air outlet pipe 51 is discharged from the air outlet 55. The hot air directly contacts the uniform air arc plate 56, so that the hot air is evenly distributed in the drying chamber 11, and the base cloth 6 enters the drying chamber 11 from the feed port 13 to achieve drying of the base cloth 6. The dried base cloth 6 leaves the drying chamber 11 from the discharge port 14, and the vacuum pump 8 is started. The relatively humid gas in the drying box 1 is discharged through the suction hood 81, the suction pipe 82 and the exhaust pipe 83 to avoid the generation of condensed water.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for continuously preparing nonwoven fabrics by electrospinning, comprising a drying box (1), characterized in that: A fixed partition (2) is fixedly installed in the drying box (1), and the fixed partition (2) divides the drying box (1) into an upper drying chamber (11) and a lower heating chamber (12). A plurality of guide rollers (3) are rotatably installed in the drying chamber (11). An outer wall of the drying box (1) is symmetrically provided with a feed port (13) and a discharge port (14) penetrating into the drying chamber (11). A plurality of electric heating tubes (4) are fixedly installed in the heating chamber (12). A uniform heating component (5) is provided in the drying chamber (11). A base cloth (6) is provided between the plurality of guide rollers (3). The base cloth (6) enters the drying chamber (11) from the feed port (13), and leaves the drying chamber (11) from the discharge port (14).

2. The device for continuously preparing nonwoven fabrics by electrospinning according to claim 1, characterized in that: The uniform heating component (5) comprises a mounting frame (51) fixedly mounted on the inner wall of the drying box (1), a plurality of air outlet pipes (52) are fixedly mounted between the mounting frames (51), the plurality of air outlet pipes (52) are connected to each other via a connecting pipe (53), and the air outlet pipe (52) located at the bottom is connected to a plurality of air guide pipes (54).

3. The device for continuously preparing nonwoven fabrics by electrospinning according to claim 2, characterized in that: The other end of the air guide pipe (54) passes through the fixed partition plate (2) to the heating chamber (12); a plurality of air outlet holes (55) are evenly and equidistantly provided on the air outlet pipe (52); an air-uniform arc plate (56) is fixedly mounted on the outer wall of the air outlet pipe (52); and the air outlet holes (55) are directly opposite to the inner wall of the air-uniform arc plate (56).

4. The device for continuously preparing nonwoven fabrics by electrospinning according to claim 1, characterized in that: An air intake pump (7) is fixedly mounted on the outer wall of the drying box (1), the air intake pump (7) is connected to an air intake pipe (71), the air intake pump (7) is connected to an air supply pipe (72), the other end of the air supply pipe (72) passes through the outer wall of the drying box (1) to the heating chamber (12), a filter screen plate (73) is fixedly mounted in the heating chamber (12), and the end of the air supply pipe (72) is arranged below the filter screen plate (73).

5. The device for continuously preparing nonwoven fabrics by electrospinning according to claim 1, characterized in that: An air pump (8) is fixedly mounted on the top of the drying box (1), an air suction hood (81) is fixedly mounted on the top of the drying box (1), the air pump (8) is connected to an air suction pipe (82), the end of the air suction pipe (82) is connected to the air suction hood (81), and the air pump (8) is connected to an exhaust pipe (83).

6. The device for continuously preparing nonwoven fabrics by electrospinning according to claim 1, characterized in that: A high temperature warning sign (9) is fixedly mounted on the outer side wall of the drying box (1).

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