A low damping rectifier for side-blowing air for spinning

Abstract

The present invention discloses a low-damping rectifier for side-blown air for spinning, which relates to the technical field of spinning production equipment and is installed in a side-blown air device. The low-damping rectifier includes an initial rectifier plate, a uniform wind assembly, a sponge plate, and a rectifier assembly. After the wind flow is initially rectified and stabilized by the initial rectifier plate, it is uniformly blown by the uniform wind assembly to form a laminar pressure stabilization layer, then flows through the sponge plate, and finally flows out of the rectifier assembly. The low-damping rectifier for side-blown air for spinning provided by the present invention eliminates the honeycomb plate structure in conventional rectifiers, solves the problem of wind resistance, has a large, uniform and stable wind speed during production, ensures the reliability of spinning process conditions, reduces energy consumption, and improves the spinning output and quality of various differentiated fiber products.

Description

Technical Field

[0001] The invention relates to the technical field of spinning production equipment, in particular to a low-damping rectifying device for side-blowing air used for spinning. Background Art

[0002] For chemical fiber melt spinning, especially in equipment using a rectangular spinneret for spinning, a side-blowing air straightening device is generally used to cool the filament bundle to achieve the effect of cooling and solidifying the filament bundle.

[0003] The side-blowing air straightening device in the prior art generally adopts a straightening device composed of a honeycomb plate and a multi-layer porous plate. Such a structure has high damping, not only consumes a lot of energy, but also has a low wind speed and a small wind volume. The spinning of differentiated fibers requires higher cooling and blowing conditions, including high and stable wind speed, uniform distribution of wind speed along the radial direction of the fiber, and laminar air flow layer. The existing side-blowing air straightening devices on the market can no longer meet the technical problems such as the forming cooling conditions for spinning various differentiated fibers. Summary of the invention

[0004] In view of the above-mentioned shortcomings, the present invention provides a low-damping rectifier device for side-blowing air for spinning, which eliminates the honeycomb plate structure in the conventional rectifier device, solves the wind resistance problem, and has a high, uniform and stable blowing speed during production, thereby ensuring the reliability of the spinning process conditions, reducing energy consumption, and improving the spinning output and quality of various differentiated fiber products.

[0005] To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

[0006] A low-damping rectifying device for side-blowing air for spinning is installed in a side-blowing air device. The low-damping rectifying device comprises an initial rectifying plate, a uniform wind assembly, a sponge plate, and a rectifying assembly. After the wind flow is initially rectified and stabilized by the initial rectifying plate, it is uniformed by the uniform wind assembly to form a laminar pressure stabilizing layer, then flows through the sponge plate, and finally flows out from the rectifying assembly.

[0007] According to one aspect of the present invention, a plurality of holes are evenly distributed on the initial rectifier plate, the opening rate of the initial rectifier plate is 28-48%, the holes are equilateral triangles, the spacing between adjacent holes is 4.0-5.5 mm, the diameter of the holes is 2.5-3.5 mm, and the thickness of the initial rectifier plate is 1.0-3.0 mm.

[0008] According to one aspect of the present invention, the wind uniformity component includes a wind uniformity plate and a partition. The wind is uniformly blown through the wind uniformity plate and forms a laminar pressure stabilizing layer through the wind uniformity plate and the partition.

[0009] According to one aspect of the present invention, a plurality of through holes are evenly distributed on the wind uniform plate, the opening rate of the wind uniform plate is 20-40%, the through holes are equilateral triangles, the spacing between adjacent through holes is 2.5-4.0 mm, the diameter of the through holes is 1.0-2.0 mm, the thickness of the wind uniform plate is 0.8-2.8 mm, the partitions are evenly spaced on the wind uniform plate, and the sponge plate is arranged between the wind uniform plate and the partition.

[0010] According to one aspect of the present invention, the sponge board is a polyurethane foam board with a foaming density of 60 to 100 ppi and a thickness of 20 to 50 mm.

[0011] According to one aspect of the present invention, the rectifying assembly includes a perforated plate and a metal mesh, and the wind flows through the perforated plate and then flows out through the metal mesh.

[0012] According to one aspect of the present invention, a plurality of square holes are evenly distributed on the orifice plate, the side length of the square holes is 30-40 mm, the center distance of the square holes is 32-45 mm, and the thickness of the orifice plate is 2-5 mm.

[0013] According to one aspect of the present invention, the wire diameter of the metal mesh is 0.8-2.0 mm, and the mesh number is 8-15 meshes.

[0014] According to one aspect of the present invention, the rectifier assembly further includes a frame and a pressure plate, the orifice plate and the metal mesh are respectively connected to both sides of the frame, the pressure plate is arranged on one side of the metal mesh, and the pressure plate is connected to the frame.

[0015] According to one aspect of the present invention, space is left between the initial rectifying plate and the wind uniforming assembly, and between the wind uniforming assembly and the sponge plate.

[0016] Advantages of the implementation of the present invention: the device adopts a new low-damping structure, so that the wind flow is initially rectified and stabilized after passing through the initial rectifier plate, and a pressure stabilization chamber is formed in the space between the initial rectifier plate and the uniform wind plate. After being uniformly blown through the uniform wind plate and forming a laminar pressure stabilization layer through the partition, the wind flow flows to the sponge plate for further uniform wind rectification, and finally blown out after filtering and balancing the wind through the orifice plate and metal mesh in the rectifier assembly, ensuring that the outlet wind pressure is stable, the wind speed is large and uniform, and the wind speed unevenness is less than 10%, which can meet the cooling requirements of different spinning varieties; and the device eliminates the honeycomb plate structure in the conventional rectifier, thereby reducing energy consumption and cost, and has a simple structure and is easy to clean and maintain; the present invention provides a new low-damping rectifier device with better performance for improving the quality of differentiated spinning fiber products and developing new varieties and new processes of differentiated spinning fibers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 for Figure 1 A partial enlargement of Figure Ⅰ ;

[0020] Figure 3 for Figure 2 The initial rectifier A-direction view in the figure;

[0021] Figure 4 for Figure 3 A partial enlargement of the initial rectifier plate in Figure III ;

[0022] Figure 5 for Figure 2 The view of the wind plate B in the figure;

[0023] Figure 6 for Figure 5 AA section view;

[0024] Figure 7 for Figure 5 A partial enlargement of the wind plate in Figure IV ;

[0025] Figure 8 for Figure 2 A partial enlargement of the rectifier components in Figure II ;

[0026] Fig. 9 for Figure 8 C-direction view of the rectifier component in FIG.

[0027] The names corresponding to the serial numbers in the figure are as follows:

[0028] 1. Side blowing device; 11. Frame; 12. Air chamber; 13. Sealing gasket; 2. Initial rectifier plate; 21. Holes; 3. Wind uniformity plate; 31. Through holes; 4. Sponge plate; 5. Rectification assembly; 51. Orifice plate; 511. Square hole; 52. Metal mesh; 53. Frame; 54. Pressing plate; 6. Partition plate; 7. Positioning pin; 8. Screw; 9. Sealing gasket. DETAILED DESCRIPTION

[0029] 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. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The directional words mentioned in the present invention, such as "up and down", "front and back", "left and right", etc., are all for the convenience of describing the structure and facilitating people's understanding, and should not be regarded as limiting the scope of protection of the present invention.

[0030] like Figure 1-Figure 9 As shown, a low-damping rectifier for side-blowing air for spinning is installed in a side-blowing air device 1 of a spinning device, and is used to rectify cooling air and cool the filament bundle; the side-blowing air device 1 includes a frame 11 and a wind chamber 12, and the wind chamber 12 is installed on the frame 11. A sealing gasket 13 is provided between the wind chamber 12 and the frame 11 to prevent air leakage during blowing, and the sealing gasket 13 can be made of rubber. The low-damping rectifier includes an initial rectifier plate 2, an air leveling plate 3, a sponge plate 4, and a rectifier assembly 5, which are arranged in sequence from the inside to the outside of the wind chamber 12. Space is left between the initial rectifier plate 2 and the air leveling plate 3, and between the air leveling plate 3 and the sponge plate 4. The initial rectifier plate 2 is fixed in the wind chamber 12 by bolt-like fasteners, and the air leveling plate 3, the sponge plate 4, and the rectifier assembly 5 are all positioned and installed on the frame 11 by positioning pins 7. When the wind blows out from the wind chamber 12 to the outside, it first flows through the initial rectifying plate 2 for preliminary rectification and voltage stabilization, and forms a pressure stabilizing chamber in the space between the initial rectifying plate 2 and the wind uniforming plate 3 (to ensure the stability of the blowing pressure, so that the wind will not have turbulence), and then enters the space between the wind uniforming plate 3 and the sponge plate 4 after being uniformly blown through the wind uniforming plate 3. Because there are partitions 6 with uniform spacing in the wind plate 3, the space in the wind uniforming plate 3 is divided into multiple independent identical spaces, and sponge boards 4 are placed in the spaces, thus forming a laminar pressure stabilizing layer (because the conventional side blowing uses a honeycomb panel structure, which not only has high processing costs but also has high damping, resulting in a very low wind speed, while the sponge board foams evenly and has very low damping, which can meet the requirements of stable blowing at high wind speeds), the wind flows from the sponge board 4 to the rectifying component 5, and finally after further uniform wind rectification through the rectifying component 5, it is blown out of the wind chamber 12, thereby cooling the filament bundles falling in the spinning equipment. This device eliminates the honeycomb plate structure in the conventional rectifier and adopts a new low-damping structure, which solves the wind resistance problem, reduces energy consumption and costs, and has a simple structure for easy cleaning and maintenance. The air outlet pressure is stable, the wind speed is large and uniform, and the wind speed unevenness is less than 10%, which can meet the cooling requirements of different spinning varieties, ensure the reliability of the spinning process conditions, and improve the spinning output and quality of various differentiated fiber products.

[0031] In practical applications, a number of small holes 21 are evenly distributed on the initial rectifying plate 2, the opening rate of the initial rectifying plate 2 is 28-48%, the holes 21 are equilateral triangles, the spacing between adjacent holes 21 is 4.0-5.5 mm, the diameter of the holes 21 is 2.5-3.5 mm, and the thickness of the initial rectifying plate 2 is 1.0-3.0 mm; the initial rectifying plate 2 can be formed by punching a stainless steel plate, and the entire plate is flat and smooth. The initial rectifying plate 2 can perform preliminary uniform wind rectification on the cooling air blown out of the air chamber 12.

[0032] In practical applications, a number of small through holes 31 are evenly distributed on the wind plate 3, the opening rate of the wind plate 3 is 20-40%, the through holes 31 are equilateral triangles, the spacing between adjacent through holes 31 is 2.5-4.0 mm, the diameter of the through holes 31 is 1.0-2.0 mm, and the thickness of the wind plate 3 is 0.8-2.8 mm; the wind plate 3 can be formed by punching a stainless steel plate, and the whole plate is flat and smooth. The wind plate 3 can filter out dust and impurities in the air, and at the same time make the cooling air blown out from the initial rectifier plate 2 more stable and uniform.

[0033] In practical applications, the setting of each plate thickness can ensure that there is no wind noise when blowing, save costs and facilitate processing; the triangular hole layout has more porous distribution than the quadrangular hole layout, and the hole opening for blowing is more reasonable.

[0034] In practical applications, the sponge board 4 is made of polyurethane foam board with a foaming density of 60-100 ppi and a thickness of 20-50 mm, which can ensure uniform air flow. The sponge board and the wind uniformity board partially replace the previous honeycomb board structure, which can produce large and uniform wind, while the traditional honeycomb board can only produce small wind.

[0035] In practical applications, the rectifying assembly 5 includes a perforated plate 51 and a metal mesh 52. After the air flows through the perforated plate 51, it flows out through the metal mesh 52. The perforated plate 51 is made of a thin aluminum plate, and a plurality of square holes 511 are evenly distributed on the perforated plate 51. The perforated plate 51 is a square perforated plate, and the square holes 511 have a specification of 30 to 40, or the side length of the square holes 511 is 30 to 40 mm, and the center distance of the square holes 511 is 32 to 45 mm. The thickness of the perforated plate 51 is 2 to 5 mm. The metal mesh 52 is a steel wire mesh, which is a stainless steel mesh with a specification of 8 to 15 meshes (8 to 15 holes per inch), a flat mesh surface, and a wire diameter of 0.8 to 2.0 mm. The perforated plate 51 and the metal mesh 52 can make the cooling air blown out from the sponge plate 4 more stable and uniform, reduce the wind speed and reduce turbulence.

[0036] In practical applications, the rectifier assembly 5 also includes a frame 53 and a pressure plate 54. The orifice plate 51 and the metal mesh 52 are connected to both sides of the frame 53 respectively. The pressure plate 54 is arranged on one side of the metal mesh 52, and the pressure plate 54 is connected to the frame 53. The orifice plate 51 is located on the outside of the sponge plate 4 or the windward side, and is located between the sponge plate 4 and the frame 53. The orifice plate 51 is fixed to the inside of the frame 53 by screws 8 to form a whole, which is convenient for assembly and disassembly and cleaning; the frame 53, the metal mesh 52, and the pressure plate 54 are arranged from the inside to the outside in sequence, and the pressure plate 54 and the metal mesh 52 are fixed to the outside of the frame 53 in sequence by screws 8. The frame 53 and the pressure plate 54 do not limit the structural shape, and are used for the installation of the orifice plate 51 and the metal mesh 52. The frame 53 can be made of a rectangular installation frame surrounded by a square tube or a steel plate, and the pressure plate 54 can be made of a square steel plate in the shape of a Chinese character. During implementation, the frame 53 is positioned and installed on the frame 11 by using pin-type and bolt-type fasteners. A sealing pad 9 is provided between the air uniforming plate 3 and the frame 11 and between the air uniforming plate 3 and the rectifying assembly 5 (perforated plate 51 or frame 53) to prevent air leakage during blowing under working conditions; the sealing pad 9 can be made of rubber.

[0037] In practical applications, the low damping rectifier also includes a number of partitions 6, which are evenly spaced in the vertical direction of the wind plate 3, and the two are welded or integrally arranged. The partition 6 divides the wind plate 3 into multiple layers from top to bottom; the sponge plate 4 is arranged in the space between the wind plate 3 and the partition 6, or the sponge plate 4 is divided into multiple pieces, which are placed in parallel and coplanar in each layer of the wind plate 3 separated by the partition 6. In this way, the structural setting is more reasonable, and when the wind enters the space between the wind plate 3 and the sponge plate 4, multiple laminar pressure stabilization layers can be formed, which can make the wind out more uniform. The partition 6 can make the wind partition uniform, so that the wind speed is large and the unevenness is small.

[0038] In practical applications, the spinning equipment and the side blowing device 1 (frame 11, wind chamber 12) are all existing technologies and will not be described in detail.

[0039] The working principle of the present invention is as follows:

[0040] When the cooling air passes through the rectifier from the wind chamber 12 of the side blowing device 1, it first passes through the initial rectifier plate 2 for preliminary uniform wind rectification, and a pressure-stabilizing wind chamber 12 space is formed between the initial rectifier plate 2 and the uniform wind plate 3 to ensure that the blowing pressure is stable, so that the wind will not have turbulence. The dust and impurities in the air are filtered out by the uniform wind plate 3, and the cooling air is further stabilized and uniform. A plurality of laminar pressure-stabilizing layers are formed in the space between the uniform wind plate 3 and the sponge plate 4 through the partition 6, and then blown out through the sponge plate 4, and then further filtered through the square hole plate and wire mesh in the rectifier assembly 5. The wind speed is reduced and turbulence is reduced, ensuring that the outlet wind pressure is stable, the wind speed is large and uniform, and the wind speed unevenness is less than 10%, thereby obtaining a uniform cooling airflow to cool the falling filament bundles.

[0041] Advantages of the implementation of the present invention: The device adopts a new low-damping structure, so that the wind flow is initially rectified and stabilized after passing through the initial rectifier plate 2, and a pressure stabilization chamber is formed in the space between the initial rectifier plate 2 and the wind uniforming plate 3. After being uniformly regulated by the wind uniforming plate 3, the wind flow enters the space between the wind uniforming plate 3 and the sponge plate 4 to form a laminar pressure stabilization layer, and finally is blown out after filtering and balancing the wind through the orifice plate 51 and the metal mesh 52 in the rectifier assembly 5, ensuring that the outlet wind pressure is stable, the wind speed is large and uniform, and the wind speed unevenness is less than 10%, which can meet the cooling requirements of different spinning varieties; and the device eliminates the honeycomb plate structure in the conventional rectifier, thereby reducing energy consumption and cost, and has a simple structure and is easy to clean and maintain; the present invention provides a new low-damping rectifier device with better performance for improving the quality of differentiated fiber products and developing new varieties and new processes for differentiated fiber spinning.

[0042] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the art within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A low damping rectifier for side-blowing air for spinning, installed in a side-blowing air device (1), characterized in that: The low damping rectifying device comprises an initial rectifying plate (2), an air leveling assembly, a sponge plate (4), and a rectifying assembly (5); the air leveling assembly comprises an air leveling plate (3) and a partition plate (6); after the airflow is initially rectified and stabilized by the initial rectifying plate (2), it is leveled by the air leveling plate (3), and a laminar pressure stabilization layer is formed by the air leveling plate (3) and the partition plate (6), and then it flows through the sponge plate (4) and finally flows out of the rectifying assembly (5); the plate thickness of the initial rectifying plate (2) is 1.0 to 3.0 mm, the plate thickness of the air leveling plate (3) is 0.8 to 2.8 mm, the partition plate (6) is evenly spaced on the air leveling plate (3), the sponge plate (4) is arranged between the air leveling plate (3) and the partition plate (6), and the sponge plate (4) is a polyurethane foam plate with a foaming density of 60 to 100 ppi and a thickness of 20 to 50 mm.

2. A low damping rectifier for side-blowing air for spinning according to claim 1, characterized in that: A plurality of holes (21) are evenly distributed on the initial rectifying plate (2), the opening rate of the initial rectifying plate (2) is 28-48%, the holes (21) are in the shape of equilateral triangles, the spacing between adjacent holes (21) is 4.0-5.5 mm, and the diameter of the hole (21) is 2.5-3.5 mm.

3. A low damping rectifier for side-blown air for spinning according to claim 2, characterized in that: A plurality of through holes (31) are evenly distributed on the air uniform plate (3), the opening rate of the air uniform plate (3) is 20-40%, the through holes (31) are in the shape of equilateral triangles, the spacing between adjacent through holes (31) is 2.5-4.0 mm, and the diameter of the through holes (31) is 1.0-2.0 mm.

4. A low damping rectifier for side-blowing air for spinning according to claim 1, characterized in that: The rectifying assembly (5) comprises a perforated plate (51) and a metal mesh (52); after the wind flows through the perforated plate (51), it flows out through the metal mesh (52).

5. A low damping rectifier for side-blowing air for spinning according to claim 4, characterized in that: A plurality of square holes (511) are evenly distributed on the orifice plate (51), the side length of the square holes (511) is 30-40 mm, the center distance of the square holes (511) is 32-45 mm, and the thickness of the orifice plate (51) is 2-5 mm.

6. A low damping rectifier for side-blowing air for spinning according to claim 4, characterized in that: The wire diameter of the metal mesh (52) is 0.8-2.0 mm, and the mesh number is 8-15.

7. A low damping rectifier for side-blowing air for spinning according to claim 4, characterized in that: The rectifier assembly (5) further comprises a frame (53) and a pressing plate (54); the orifice plate (51) and the metal mesh (52) are respectively connected to two sides of the frame (53); the pressing plate (54) is arranged on one side of the metal mesh (52); and the pressing plate (54) is connected to the frame (53).

8. A low damping rectifier for side-blowing air for spinning according to claim 1, characterized in that: Space is left between the initial rectifying plate (2) and the wind uniforming component, and between the wind uniforming component and the sponge plate (4).

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